diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000000..750e8ac81a
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/donate.png
diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
deleted file mode 100644
index daea781567..0000000000
--- a/.github/ISSUE_TEMPLATE.md
+++ /dev/null
@@ -1,44 +0,0 @@
-## Describe the bug
-
-A clear and concise description of what the bug is.
-
-- The version of utilcode: <!-- e.g. 1.16.3 -->
-- The device: <!-- e.g. Nexus 5X -->
-- The version of device: <!-- API 27 -->
-
-## The code of bug
-
-<!-- e.g. 
-```java
-CrashUtils.init();
-```
--->
-```
-put your code here
-```
-
-## The stack of crash
-
-<!-- e.g. 
-```
-Caused by: java.lang.NullPointerException: u should init first
-   at com.blankj.utilcode.util.Utils.getApp(Utils.java:98)
-   at com.blankj.utilcode.util.CrashUtils.<clinit>(CrashUtils.java:55)
-   at com.blankj.utilcode.util.CrashUtils.init(CrashUtils.java:168) 
-   at com.blankj.androidutilcode.UtilsApp.initCrash(UtilsApp.java:71) 
-   at com.blankj.androidutilcode.UtilsApp.onCreate(UtilsApp.java:33) 
-```
--->
-
-```
-put the stack of crash here
-```
-
-## Screenshots
-
-If applicable, add screenshots to help explain your problem.
-
-
-Please delete the current line and the followings.
-
-Thank you for supporting [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode).
\ No newline at end of file
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 0000000000..e29c2e45b6
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,52 @@
+---
+name: Bug report
+about: Make AndroidUtilCode more perfect!
+labels: bug
+assignees: Blankj
+
+---
+
+## Describe the bug
+
+A clear and concise description of what the bug is.
+
+- The version of AndroidUtilCode: <!-- e.g. utilcode:1.16.3 or utilcodex:1.16.3 -->
+- The device: <!-- e.g. Nexus 5X -->
+- The version of device: <!-- API 27 -->
+
+## The code of bug
+
+<!-- e.g. 
+```java
+CrashUtils.init();
+```
+-->
+```
+put your code here
+```
+
+## The stack of crash
+
+<!-- e.g. 
+```
+Caused by: java.lang.NullPointerException: u should init first
+   at com.blankj.utilcode.util.Utils.getApp(Utils.java:98)
+   at com.blankj.utilcode.util.CrashUtils.<clinit>(CrashUtils.java:55)
+   at com.blankj.utilcode.util.CrashUtils.init(CrashUtils.java:168) 
+   at com.blankj.androidutilcode.UtilsApp.initCrash(UtilsApp.java:71) 
+   at com.blankj.androidutilcode.UtilsApp.onCreate(UtilsApp.java:33) 
+```
+-->
+
+```
+put the stack of crash here
+```
+
+## Screenshots
+
+If applicable, add screenshots to help explain your problem.
+
+
+## Please delete the current line and the following.
+
+Thank you for supporting [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode).
diff --git a/.github/ISSUE_TEMPLATE/bug_report_cn.md b/.github/ISSUE_TEMPLATE/bug_report_cn.md
new file mode 100644
index 0000000000..02ea0223e3
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report_cn.md
@@ -0,0 +1,52 @@
+---
+name: 提交 Bug
+about: 让工具类更完美！
+labels: bug
+assignees: Blankj
+
+---
+
+## 描述 Bug
+
+简洁地描述下 Bug。
+
+- AndroidUtilCode 的版本：<!-- 例如 utilcode:1.16.3 或 utilcodex:1.16.3（这里面是注释，内容需要放在外面） -->
+- 出现 Bug 的设备型号：<!-- 例如 Nexus 5X -->
+- 设备的 Android 版本：<!-- 例如 API 27 -->
+
+## 相关代码
+
+<!-- 例如
+```java
+CrashUtils.init();
+```
+-->
+```
+put your code here
+```
+
+## 异常堆栈
+
+<!-- 例如
+```
+Caused by: java.lang.NullPointerException: u should init first
+   at com.blankj.utilcode.util.Utils.getApp(Utils.java:98)
+   at com.blankj.utilcode.util.CrashUtils.<clinit>(CrashUtils.java:55)
+   at com.blankj.utilcode.util.CrashUtils.init(CrashUtils.java:168) 
+   at com.blankj.androidutilcode.UtilsApp.initCrash(UtilsApp.java:71) 
+   at com.blankj.androidutilcode.UtilsApp.onCreate(UtilsApp.java:33) 
+```
+-->
+
+```
+put the stack of crash here
+```
+
+## 截图
+
+如果有的话请添加屏幕截图以帮助解释问题。
+
+
+## 请删除当前行及以下内容
+
+感谢支持 [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode).
diff --git a/.github/ISSUE_TEMPLATE/feature-request.md b/.github/ISSUE_TEMPLATE/feature-request.md
new file mode 100644
index 0000000000..90a0fe1993
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature-request.md
@@ -0,0 +1,21 @@
+---
+name: Feature request
+about: Make AndroidUtilCode more perfect!
+labels: help wanted
+assignees: Blankj
+
+---
+
+## Describe the feature
+
+A clear and concise description of what the feature is.
+
+
+## Reference
+
+Hope to give some reference articles, links, code, if any.
+
+
+## Please delete the current line and the following
+
+Thank you for supporting [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode).
diff --git a/.github/ISSUE_TEMPLATE/feature-request_cn.md b/.github/ISSUE_TEMPLATE/feature-request_cn.md
new file mode 100644
index 0000000000..20862d047b
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature-request_cn.md
@@ -0,0 +1,21 @@
+---
+name: 提交需求
+about: 让工具类更健全！
+labels: help wanted
+assignees: Blankj
+
+---
+
+## 描述需求
+
+简洁地描述下需求。
+
+
+## 可借鉴的
+
+如果有的话，可以给出一些参考文章、链接、代码
+
+
+## 请删除当前行及以下内容
+
+感谢支持 [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode).
diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
new file mode 100644
index 0000000000..311fc1deaa
--- /dev/null
+++ b/.github/workflows/android.yml
@@ -0,0 +1,17 @@
+name: Android CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build with Gradle
+      run: ./gradlew build aR
diff --git a/.gitignore b/.gitignore
index 804ef71038..9d11f56a24 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,15 @@
 *.iml
+__api__.json
+__bus__.json
 .gradle
-/local.properties
+local.properties
 .idea
 .DS_Store
 /build
 /captures
 .externalNativeBuild
-/apk
\ No newline at end of file
+/apk
+*.phrof
+/mavenLocal
+/reports
+*/reports
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index b4e77e194d..0000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-language: android
-jdk: oraclejdk8
-sudo: false
-
-android:
-  components:
-    - tools
-    - platform-tools
-    - build-tools-27.0.2
-    - android-27
-    - add-on
-    - extra
-
-  licenses:
-    - 'android-sdk-license-.+'
-
-  notifications:
-    email: false
-
-before_install:
-    - yes | $ANDROID_HOME/tools/bin/sdkmanager "build-tools;26.0.2"
-
-script:
-  - ./gradlew build connectedCheck --info
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d192a9c86..73e8145bf1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,153 @@
+* `22/10/15` [add] Fix some issue. Publish v1.31.1
+* `21/12/06` [add] Publish v1.31.0
+* `21/05/13` [add] Support publish mavenCentral.
+* `21/02/22` [add] Fix ToastUtils rtl bug. Publish v1.30.6.
+* `20/11/16` [add] Add ImageUtils#save2Album support param of dirName.
+* `20/11/13` [add] Fix MessengerUtils ANR. Add NetworkUtils#getWifiScanResult, [add|remove]OnWifiChangedConsumer. Publish v1.30.5.
+* `20/10/29` [add] Fix MessengerUtils startService IllegalStateException. Publish v1.30.4.
+* `20/10/28` [add] Fix BusUtils ConcurrentModificationException. Publish v1.30.3.
+* `20/10/27` [add] Fix AppUtils#getAppSignatures. Add DeviceUtils#isDevelopmentSettingsEnabled. Publish v1.30.2.
+* `20/10/26` [add] Fix AppUtils#isAppForeground. Publish v1.30.1.
+* `20/10/24` [add] Publish v1.30.0.
+* `20/10/23` [fix] LanguageUtils crash on some device.
+* `20/10/21` [add] LogUtils.Config#setOnConsoleOutputListener, setOnFileOutputListener, addFileExtraHead. LogUtils.getCurrentLogFilePath.
+* `20/10/20` [opt] ToastUtils.
+* `20/10/12` [add] PermissionUtils#explain.
+* `20/10/10` [add] ClipboardUtils.
+* `20/10/08` [add] VolumeUtils.
+* `20/09/06` [add] DebouncingUtils#isValid.
+* `20/09/04` [fix] ToastUtils adapt SDK 30.
+* `20/05/28` [fix] IntentUtils#getInstallAppIntent file exist wrong. Publish v1.29.0.
+* `20/05/23` [fix] BusUtils#postSticky times not right. Publish v1.28.6.
+* `20/05/22` [add] IntentUtils#getInstallAppIntent support Uri param.
+* `20/05/21` [add] Publish bus plugin v2.6. Publish api plugin v1.4. Publish. Publish v1.28.5.
+* `20/05/19` [fix] FileUtils#copyOrMoveDird NPE.
+* `20/05/18` [add] IntentUtils#getLaunchAppDetailsSettingsIntent support isNewTask.
+* `20/05/17` [add] ImageUtils#save2Album, NetworkUtils#getSSID, UtilsTransActivity4MainProcess.
+* `20/05/03` [add] Publish bus plugin v2.5. Publish api plugin v1.3. Publish. Publish v1.28.4.
+* `20/04/30` [add] BaseItem support partialUpdate.
+* `20/04/29` [add] Publish plugin lib com.blankj:base-transform:1.0.
+* `20/04/28` [fix] LanguageUtils#applyLanguage.
+* `20/04/27` [fix] BarUtils#isNavBarVisible.
+* `20/04/26` [fix] Utils#init fit tinker. Publish v1.28.3.
+* `20/04/25` [fix] UriUtils#uri2File Unknown URI. Publish 1.28.2.
+* `20/04/24` [add] SnackbarUtils support show on the top; UriUtils#uri2InputStream.
+* `20/04/23` [fix] UriUtils#uri2File not support HW; TransActivity crash below 21.
+* `20/04/23` [fix] PhoneUtils#getSerial, PhoneUtils#getSerial crash on Android 10.
+* `20/04/20` [fix] ImageUtils#isImage.
+* `20/04/18` [fix] PermissionUtils#callback. Publish v1.28.1.
+* `20/04/17` [fix] ImageUtils#view2Bitmap, ImageUtils.getBitmap(InputStream).
+* `20/04/16` [add] ConvertUtils#int2HexString, hexString2Int.
+* `20/04/15` [add] UiMessageUtils' demo.
+* `20/04/13` [add] NumberUtils. Publish v1.28.0.
+* `20/04/12` [opt] TimeUtils#SDF_THREAD_LOCAL.
+* `20/04/11` [add] SDCardUtils#getXxTotalSize, SDCardUtils#getXxAvailableSize. FileUtils#getFsTotalSize, FileUtils#getFsAvailableSize.
+* `20/04/10` [fix] FileUtils#isFileExists; FragmentUtils#getTop bug. Publish v1.27.6.
+* `20/04/09` [add] UriUtils#res2Uri, UriUtils#uri2File support QQBrowser; ThreadUtils#getMainHandler; PathUtils#getxxPathExternalFirst.
+* `20/04/08` [fix] ActivityUtils#finish bug. Publish v1.27.5.
+* `20/04/08` [fix] CleanUtils clean dir not work. FileUtils#isFileExists. Publish v1.27.4.
+* `20/04/08` [fix] CrashUtils DefaultUncaughtExceptionHandler is wrong; LogUtils write file failed; Utils#getApp failed run on remote process. Publish v1.27.3.
+* `20/04/07` [mdf] GsonUtils#getGson() method public.
+* `20/04/04` [fix] ShadowUtils bug running on lower version devices. Publish v1.27.2.
+* `20/04/03` [fix] UtilsActivityLifecycleImpl#HashMap#remove IllegalStateException bug.
+* `20/04/02` [fix] PathUtils sdcard enable state is wrong; ActivityUtils finish activity wrong; Publish v1.27.1.
+* `20/03/31` [add] Publish v1.27.0.
+* `20/03/30` [add] BatteryUtils in subutil.
+* `20/03/27` [add] publish.gradle.
+* `20/03/24` [add] UtilsBridge to clean the utils.
+* `20/03/22` [upd] GsonUtils support custom gson.
+* `20/03/20` [add] ActivityUtils#addActivityLifecycleCallbacks, ActivityUtils#removeActivityLifecycleCallbacks.
+* `20/01/17` [upd] Leak Canary to v2.1.
+* `20/01/06` [add] ClickUtils#expandClickArea, ClickUtils#back2HomeFriendly
+* `19/11/30` [add] Publish bus plugin v2.4. Publish api plugin v1.2.
+* `19/11/28` [add] Publish v1.26.0.
+* `19/11/27` [add] Shadow demo.
+* `19/11/26` [add] MVP demo.
+* `19/11/22` [fix] Adapt the project for Gradle version of 6.0.
+* `19/10/30` [add] Publish bus plugin v2.3. Publish api plugin v1.1.
+* `19/10/24` [upd] Demo's UI.
+* `19/10/22` [add] NotificationUtils and demo.
+* `19/10/20` [add] UiMessageUtils.
+* `19/09/20` [add] ShadowUtils.
+* `19/08/27` [add] DebugUtils.
+* `19/08/26` [fix] PermissionUtils NPE.
+* `19/08/25` [upd] ImageUtils#getImageType. [add] LogUtils#getLogFiles. Publish v1.25.9.
+* `19/08/24` [fix] PhoneUtils#getIMEI crash on SDK 29.
+* `19/08/23` [add] ViewUtils#isLayoutRtl.
+* `19/08/22` [add] LogUtils#getLogFiles.
+* `19/08/13` [add] MapUtils and MapUtilsTest. Publish v1.25.8.
+* `19/08/12` [add] CollectionUtils and CollectionUtilsTest.
+* `19/08/11` [add] ArrayUtils and ArrayUtilsTest.
+* `19/08/09` [fix] https://www.virustotal.com/gui/home/upload with ESET-NOD32. Publish v1.25.7.
+* `19/08/08` [add] BusUtils#post tag support one-to-many. Publish v1.25.6.
+* `19/08/04` [add] ThreadUtils#Task support timeout.
+* `19/08/01` [upd] EncryptUtils#rsa.
+* `19/07/31` [add] DeviceUtils#getUniqueDeviceId, DeviceUtils#isSameDevice. Publish v1.25.5.
+* `19/07/30` [fix] ThreadUtils's task can only be executed once. PhoneUtils#getIMEI wrong.
+* `19/07/29` [fix] BusUtils post father class useless. KeyboardUtils#hideSoft bug. Publish v1.25.4.
+* `19/07/28` [add] NetworkUtils#(un)registerNetworkStatusChangedListener. Publish v1.25.3.
+* `19/07/27` [fix] ThreadUtils memory leak.
+* `19/07/26` [add] ContainerUtils. Publish v1.25.2.
+* `19/07/25` [fix] PermissionUtils' NullPointException.
+* `19/07/24` [fix] ZipUtils#unzipFile.
+* `19/07/23` [fix] ThreadUtils of cache pool. Publish v1.25.1.
+* `19/07/18` [add] README of ApiUtils and BusUtils.
+* `19/07/15` [add] Publish v1.25.0.
+* `19/07/14` [upd] Bus plugin for use BusUtils. Publish bus plugin v2.0.
+* `19/07/13` [add] Api plugin for use ApiUtils. Publish api plugin v1.0.
+* `19/07/09` [upd] The frame of project.
+* `19/07/06` [upd] BusUtils which behave same as EventBus.
+* `19/07/03` [add] ApiUtils which decoupling modules.
+* `19/06/30` [add] LanguageUtils support activity's class name.
+* `19/06/29` [add] ClickUtils#OnMultiClickListener, and remove dangerous function. Publish v1.24.6.
+* `19/06/28` [add] LanguageUtils. Publish v1.24.5.
+* `19/06/20` [fix] BusUtils' permission. Publish v1.24.4.
+* `19/06/19` [fix] UriUtils. Publish v1.24.3.
+* `19/06/18` [add] ClickUtils, ViewUtils.
+* `19/06/07` [fix] LogUtils file name contains ':'. Publish v1.24.2.
+* `19/06/06` [fix] LogUtils write to file. Publish v1.24.1.
+* `19/06/03` [fix] Refactoring framework. Publish v1.24.0.
+* `19/04/25` [fix] LogUtils delete due log.
+* `19/04/24` [upd] The swipe panel.
+* `19/03/17` [fix] The ugly UI.
+* `19/03/14` [fix] AdaptScreenUtils didn't work on some HaWei tablet.
+* `19/03/09` [fix] UriUtils#uri2File.
+* `19/03/08` [add] LogUtils support multi process. Publish v1.23.7.
+* `19/03/02` [fix] LogUtils#file.
+* `19/02/28` [fix] ImageUtils#calculateInSampleSize. Publish v1.23.6.
+* `19/02/26` [fix] UriUtils#uri2File. Publish v1.23.5.
+* `19/01/31` [add] HttpUtils.
+* `19/01/30` [add] RomUtils. Publish v1.23.4.
+* `19/01/29` [fix] LogUtils format json when json not start with '{'. Publish v1.23.3.
+* `19/01/28` [fix] KeyboardUtils#fixSoftInputLeaks don't work on the device of HuaWei.
+* `19/01/26` [fix] NetworkUtils#getNetworkType.
+* `19/01/25` [add] CloneUtils, PermissionUtils support request permission of WRITE_SETTINGS and DRAW_OVERLAYS. Publish v1.23.2.
+* `19/01/24` [add] BrightnessUtils and FlashlightUtils.
+* `19/01/23` [add] Modify the demo of utilcode use kotlin. Publish v1.23.1.
+* `19/01/22` [fix] AppUtils#installApp.
+* `19/01/17` [fix] Publish v1.23.0.
+* `19/01/16` [fix] BarUtils get Activity from view and delete the function of set status bar alpha.
+* `19/01/15` [add] ColorUtils.
+* `19/01/04` [add] CacheDiskStaticUtils, CacheDoubleStaticUtils, CacheMemoryStaticUtils.
+* `19/01/03` [add] SPStaticUtils.
+* `19/01/02` [fix] LogUtils log object. Publish v1.22.10.
+* `19/01/01` [add] GsonUtils.
+* `18/12/29` [add] AntiShakeUtils and VibrateUtils. Publish v1.22.9.
+* `18/12/28` [fix] ToastUtils show behind the dialog when close notification.
+* `18/12/27` [fix] LogUtils print StringBuilder failed.
+* `18/12/24` [fix] Utils$ActivityLifecycleImpl.consumeOnActivityDestroyedListener ConcurrentModificationException. Publish v1.22.7.
+* `18/12/22` [fix] AdaptScreenUtils#pt2px don't work when start webview. Publish v1.22.6.
+* `18/12/21` [add] LogUtils support print Map, Collection and Object to String.
+* `18/12/19` [fix] AdaptScreenUtils don't work in MIUI on Android 5.1.1. Publish v1.22.5.
+* `18/12/18` [fix] ToastUtils multi show crash when run API 25. Publish v1.22.4.
+* `18/12/18` [fix] ImageUtils recycle ret equals src. Publish v1.22.3.
+* `18/12/17` [fix] Utils$FileProvider4UtilCode not found. Publish v1.22.3.
+* `18/12/17` [fix] ToastUtils leak. Publish v1.22.2.
+* `18/12/09` [add] Component for the project.
+* `18/12/04` [add] BusUtils. Publish v1.22.1.
+* `18/11/18` [fix] ToastUtils don't show in the devices grater than API 24 when close the permission of notification. Publish v1.22.0.
+* `18/11/17` [fix] AppUtils#isAppInstalled don't work in no launcher app.
+* `18/11/16` [fix] ThreadUtils#cancel block the main thread.
 * `18/11/15` [add] module of bus-gradle-plugin and change style of gradle.
 * `18/11/14` [add] BusUtils.
 * `18/11/13` [add] AdaptScreenUtils.
diff --git a/README-CN.md b/README-CN.md
index a763c8a451..5c85dca1fe 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -1,6 +1,8 @@
-![logo][logo]
+[![logo][logo]](https://github.com/Blankj/AndroidUtilCode)
 
-[![auc][aucSvg]][auc] [![api][apiSvg]][api] [![build][buildSvg]][build] [![Insight][insightSvg]][insight] [![License][licenseSvg]][license]
+[![frame][frame]](https://github.com/Blankj/AucFrameTemplate)
+
+[![auc][aucSvg]][auc] [![result][apiSvg]][result] [![build][buildSvg]][build] [![License][licenseSvg]][license]
 
 ## [README of English][readme]
 
@@ -35,35 +37,38 @@
 [![Blog][blogSvg]][blog] [![jianshu][jianshuSvg]][jianshu] [![weibo][weiboSvg]][weibo] [![QQGroup][qqgroupSvg]][qqgroup]
 
 
-## [Update Log][updateLog.md]
+## [Change Log][changeLog.md]
+
+
+## 打个小广告
 
+欢迎加入我的小专栏「**[基你太美](https://xiaozhuanlan.com/Blankj)**」一起学习。
 
 
 [logo]: https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/logo.png
 
-[aucSvg]: https://img.shields.io/badge/AndroidUtilCode-v1.21.2-brightgreen.svg
+[frame]: https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/auc_frame_cn.png
+
+[aucSvg]: https://github.com/Blankj/AndroidUtilCode/workflows/Android%20CI/badge.svg?branch=master
 [auc]: https://github.com/Blankj/AndroidUtilCode
 
 [apiSvg]: https://img.shields.io/badge/API-14+-brightgreen.svg
-[api]: https://android-arsenal.com/api?level=14
+[result]: https://android-arsenal.com/result?level=14
 
 [buildSvg]: https://travis-ci.org/Blankj/AndroidUtilCode.svg?branch=master
 [build]: https://travis-ci.org/Blankj/AndroidUtilCode
 
-[insightSvg]: https://www.insight.io/repoBadge/github.com/Blankj/AndroidUtilCode
-[insight]: https://insight.io/github.com/Blankj/AndroidUtilCode
-
 [licenseSvg]: https://img.shields.io/badge/License-Apache--2.0-brightgreen.svg
 [license]: https://github.com/Blankj/AndroidUtilCode/blob/master/LICENSE
 
 [readme]: https://github.com/Blankj/AndroidUtilCode
 [readme-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/README-CN.md
 
-[utilcode]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/README.md
-[utilcode-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/README-CN.md
+[utilcode]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/README.md
+[utilcode-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/README-CN.md
 
-[subutil]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/README.md
-[subutil-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/README-CN.md
+[subutil]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/README.md
+[subutil-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/README-CN.md
 
 [changeLog.md]: https://github.com/Blankj/AndroidUtilCode/blob/master/CHANGELOG.md
 
diff --git a/README.md b/README.md
index ad902d1ac0..9ae668e26e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
-![logo][logo]
+[![logo][logo]](https://github.com/Blankj/AndroidUtilCode)
 
-[![auc][aucSvg]][auc] [![api][apiSvg]][api] [![build][buildSvg]][build] [![Insight][insightSvg]][insight] [![License][licenseSvg]][license]
+[![frame][frame]](https://github.com/Blankj/AucFrameTemplate)
+
+[![auc][aucSvg]][auc] [![result][apiSvg]][result] [![build][buildSvg]][build] [![License][licenseSvg]][license]
 
 ## [README of Chinese][readme-cn]
 
@@ -35,35 +37,38 @@ If this project helps you a lot and you want to support the project's developmen
 [![Blog][blogSvg]][blog] [![jianshu][jianshuSvg]][jianshu] [![weibo][weiboSvg]][weibo] [![QQGroup][qqgroupSvg]][qqgroup]
 
 
-## [Update Log][update_log.md]
+## [Change Log][changeLog.md]
+
+
+## 打个小广告
 
+欢迎加入我的小专栏「**[基你太美](https://xiaozhuanlan.com/Blankj)**」一起学习。
 
 
 [logo]: https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/logo.png
 
-[aucSvg]: https://img.shields.io/badge/AndroidUtilCode-v1.21.2-brightgreen.svg
+[frame]: https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/auc_frame.png
+
+[aucSvg]: https://github.com/Blankj/AndroidUtilCode/workflows/Android%20CI/badge.svg?branch=master
 [auc]: https://github.com/Blankj/AndroidUtilCode
 
 [apiSvg]: https://img.shields.io/badge/API-14+-brightgreen.svg
-[api]: https://android-arsenal.com/api?level=14
+[result]: https://android-arsenal.com/result?level=14
 
 [buildSvg]: https://travis-ci.org/Blankj/AndroidUtilCode.svg?branch=master
 [build]: https://travis-ci.org/Blankj/AndroidUtilCode
 
-[insightSvg]: https://www.insight.io/repoBadge/github.com/Blankj/AndroidUtilCode
-[insight]: https://insight.io/github.com/Blankj/AndroidUtilCode
-
 [licenseSvg]: https://img.shields.io/badge/License-Apache--2.0-brightgreen.svg
 [license]: https://github.com/Blankj/AndroidUtilCode/blob/master/LICENSE
 
 [readme]: https://github.com/Blankj/AndroidUtilCode
 [readme-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/README-CN.md
 
-[utilcode]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/README.md
-[utilcode-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/README-CN.md
+[utilcode]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/README.md
+[utilcode-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/README-CN.md
 
-[subutil]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/README.md
-[subutil-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/README-CN.md
+[subutil]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/README.md
+[subutil-cn]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/README-CN.md
 
 [changeLog.md]: https://github.com/Blankj/AndroidUtilCode/blob/master/CHANGELOG.md
 
diff --git a/app/build.gradle b/app/build.gradle
deleted file mode 100644
index ab574aded8..0000000000
--- a/app/build.gradle
+++ /dev/null
@@ -1,25 +0,0 @@
-plugins {
-    id "com.android.application"
-    id 'kotlin-android'
-    id 'kotlin-android-extensions'
-//    id "com.blankj.bus"
-}
-// in config.gradle
-configAndroidDomain project
-
-dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation project(':utilcode-lib')
-    implementation project(':subutil-lib')
-
-    implementation dep.support.appcompat_v7
-    implementation dep.support.design
-    implementation dep.constraint
-    implementation dep.kotlin
-    implementation dep.free_proguard
-    implementation 'com.r0adkll:slidableactivity:2.0.5'
-    // LeakCanary
-    debugImplementation dep.leakcanary.android
-    releaseImplementation dep.leakcanary.android_no_op
-//    implementation 'com.blankj:utilcode:1.21.2'
-}
\ No newline at end of file
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
deleted file mode 100644
index 781f9c8aa5..0000000000
--- a/app/proguard-rules.pro
+++ /dev/null
@@ -1,17 +0,0 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in G:\Android_IDE\ADT\sdk/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
deleted file mode 100644
index aeaecd9d35..0000000000
--- a/app/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,221 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.androidutilcode">
-
-    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
-    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
-
-    <!-- bar -->
-    <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />
-
-    <!-- 读写内存 -->
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-
-    <!-- network -->
-    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
-    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
-    <uses-permission android:name="android.permission.INTERNET" />
-
-    <!-- permission -->
-    <uses-permission android:name="android.permission.READ_CALENDAR" />
-    <uses-permission android:name="android.permission.RECORD_AUDIO" />
-
-    <!-- phone -->
-    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-    <uses-permission android:name="android.permission.CALL_PHONE" />
-    <uses-permission android:name="android.permission.SEND_SMS" />
-    <uses-permission android:name="android.permission.READ_SMS" />
-    <uses-permission android:name="android.permission.READ_CONTACTS" />
-
-    <!-- process -->
-    <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
-
-    <!-- screen -->
-    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
-
-    <!-- flashlight -->
-    <uses-permission android:name="android.permission.CAMERA" />
-    <uses-permission android:name="android.permission.FLASHLIGHT" />
-
-    <!-- location -->
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-
-    <application
-        android:name=".UtilsApp"
-        android:allowBackup="false"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:theme="@style/AppTheme">
-        <activity
-            android:name=".MainActivity"
-            android:screenOrientation="user"
-            android:windowSoftInputMode="stateHidden|adjustPan">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-
-        <!-- core -->
-        <activity
-            android:name=".feature.core.CoreUtilActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.activity.ActivityActivity"
-            android:icon="@drawable/activity_activity_icon"
-            android:launchMode="singleTop"
-            android:logo="@drawable/activity_activity_logo" />
-        <activity
-            android:name=".feature.core.activity.SubActivityActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.adaptScreen.AdaptScreenActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.adaptScreen.CloseAdaptActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.adaptScreen.HeightActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.adaptScreen.WidthActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.app.AppActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarNotificationActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarNavActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusAlphaActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusColorActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusDrawerActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusFragmentActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusImageViewActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.bar.BarStatusSwipeBackActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.clean.CleanActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.device.DeviceActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.fragment.FragmentActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.image.ImageActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.keyboard.KeyboardActivity"
-            android:launchMode="singleTop"
-            android:windowSoftInputMode="stateHidden" />
-        <activity
-            android:name=".feature.core.log.LogActivity"
-            android:launchMode="singleTop" />
-
-        <activity
-            android:name=".feature.core.metaData.MetaDataActivity"
-            android:launchMode="singleTop">
-            <meta-data
-                android:name="activity_meta_data"
-                android:value="ActivityMetaData" />
-        </activity>
-        <activity
-            android:name=".feature.core.network.NetworkActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.path.PathActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.permission.PermissionActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.phone.PhoneActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.process.ProcessActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.reflect.ReflectActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.resource.ResourceActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.screen.ScreenActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.screen.ScreenAdaptActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.sdcard.SDCardActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.snackbar.SnackbarActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.sp.SPActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.span.SpanActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.core.toast.ToastActivity"
-            android:launchMode="singleTop" />
-
-        <meta-data
-            android:name="app_meta_data"
-            android:value="AppMetaData" />
-
-        <!-- sub -->
-        <activity
-            android:name=".feature.sub.SubUtilActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.sub.brightness.BrightnessActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.sub.flashlight.FlashlightActivity"
-            android:launchMode="singleTop" />
-        <activity
-            android:name=".feature.sub.location.LocationActivity"
-            android:launchMode="singleTop" />
-
-        <service
-            android:name=".feature.sub.location.LocationService"
-            android:launchMode="singleTop" />
-
-        <activity
-            android:name=".feature.sub.pinyin.PinyinActivity"
-            android:launchMode="singleTop"
-            android:screenOrientation="landscape" />
-
-    </application>
-
-</manifest>
\ No newline at end of file
diff --git a/app/src/main/java/com/blankj/androidutilcode/Config.java b/app/src/main/java/com/blankj/androidutilcode/Config.java
deleted file mode 100644
index fcbad1dba2..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/Config.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.blankj.androidutilcode;
-
-import android.os.Environment;
-
-import com.blankj.utilcode.util.Utils;
-
-import java.io.File;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/10
- *     desc  : config about constants
- * </pre>
- */
-public class Config {
-
-    public static final String FILE_SEP = System.getProperty("file.separator");
-    public static final String LINE_SEP = System.getProperty("line.separator");
-    public static final String PKG      = "com.blankj.androidutilcode";
-    public static final String TEST_PKG = "com.blankj.testinstall";
-    public static final String GITHUB   = "https://github.com/Blankj/AndroidUtilCode";
-    public static final String BLOG     = "https://blankj.com";
-    public static final String CACHE_PATH;
-    public static final String TEST_APK_PATH;
-
-    static {
-        File cacheDir = Utils.getApp().getExternalCacheDir();
-        if (cacheDir != null) {
-            CACHE_PATH = cacheDir.getAbsolutePath();
-        } else {
-            CACHE_PATH = Environment.getExternalStorageDirectory().getAbsolutePath();
-        }
-        TEST_APK_PATH = CACHE_PATH + FILE_SEP + "test_install.apk";
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/MainActivity.java b/app/src/main/java/com/blankj/androidutilcode/MainActivity.java
deleted file mode 100644
index 8cd21dfecd..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/MainActivity.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.blankj.androidutilcode;
-
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.design.widget.CollapsingToolbarLayout;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.widget.Toolbar;
-import android.view.View;
-
-import com.blankj.androidutilcode.base.BaseDrawerActivity;
-import com.blankj.androidutilcode.feature.core.CoreUtilActivity;
-import com.blankj.androidutilcode.feature.sub.SubUtilActivity;
-import com.blankj.utilcode.util.BarUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : MainActivity
- * </pre>
- */
-public class MainActivity extends BaseDrawerActivity {
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_main;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Toolbar toolbar = findViewById(R.id.toolbar);
-        View fakeStatusBar = findViewById(R.id.fake_status_bar);
-        CollapsingToolbarLayout ctl = findViewById(R.id.ctl);
-        ctl.setExpandedTitleColor(Color.parseColor("#00FFFFFF"));
-        setSupportActionBar(toolbar);
-        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this,
-                rootLayout,
-                toolbar,
-                R.string.navigation_drawer_open,
-                R.string.navigation_drawer_close);
-        rootLayout.addDrawerListener(toggle);
-        toggle.syncState();
-
-        BarUtils.setStatusBarAlpha4Drawer(this, rootLayout, fakeStatusBar, 0, false);
-        BarUtils.addMarginTopEqualStatusBarHeight(toolbar);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    public void coreUtilClick(View view) {
-        CoreUtilActivity.start(this);
-    }
-
-    public void subUtilClick(View view) {
-        SubUtilActivity.start(this);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/UtilsApp.java b/app/src/main/java/com/blankj/androidutilcode/UtilsApp.java
deleted file mode 100644
index 4f4951d2a9..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/UtilsApp.java
+++ /dev/null
@@ -1,95 +0,0 @@
-package com.blankj.androidutilcode;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-
-import com.blankj.androidutilcode.base.BaseApplication;
-import com.blankj.utilcode.util.AppUtils;
-import com.blankj.utilcode.util.CrashUtils;
-import com.blankj.utilcode.util.LogUtils;
-import com.squareup.leakcanary.LeakCanary;
-
-import java.util.ArrayList;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/12
- *     desc  : app about utils
- * </pre>
- */
-public class UtilsApp extends BaseApplication {
-
-    private static UtilsApp sInstance;
-
-    public static UtilsApp getInstance() {
-        return sInstance;
-    }
-
-    @Override
-    protected void attachBaseContext(Context base) {
-        super.attachBaseContext(base);
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        sInstance = this;
-        initLeakCanary();
-        initLog();
-        initCrash();
-    }
-
-    private void initLeakCanary() {
-        // 内存泄露检查工具
-        if (LeakCanary.isInAnalyzerProcess(this)) {
-            // This process is dedicated to LeakCanary for heap analysis.
-            // You should not init your app in this process.
-            return;
-        }
-        LeakCanary.install(this);
-    }
-
-    // init it in ur application
-    public void initLog() {
-        final LogUtils.Config config = LogUtils.getConfig()
-                .setLogSwitch(BuildConfig.DEBUG)// 设置 log 总开关，包括输出到控制台和文件，默认开
-                .setConsoleSwitch(BuildConfig.DEBUG)// 设置是否输出到控制台开关，默认开
-                .setGlobalTag(null)// 设置 log 全局标签，默认为空
-                // 当全局标签不为空时，我们输出的 log 全部为该 tag，
-                // 为空时，如果传入的 tag 为空那就显示类名，否则显示 tag
-                .setLogHeadSwitch(true)// 设置 log 头信息开关，默认为开
-                .setLog2FileSwitch(false)// 打印 log 时是否存到文件的开关，默认关
-                .setDir("")// 当自定义路径为空时，写入应用的/cache/log/目录中
-                .setFilePrefix("")// 当文件前缀为空时，默认为"util"，即写入文件为"util-yyyy-MM-dd.txt"
-                .setBorderSwitch(true)// 输出日志是否带边框开关，默认开
-                .setSingleTagSwitch(true)// 一条日志仅输出一条，默认开，为美化 AS 3.1 的 Logcat
-                .setConsoleFilter(LogUtils.V)// log 的控制台过滤器，和 logcat 过滤器同理，默认 Verbose
-                .setFileFilter(LogUtils.V)// log 文件过滤器，和 logcat 过滤器同理，默认 Verbose
-                .setStackDeep(1)// log 栈深度，默认为 1
-                .setStackOffset(0)// 设置栈偏移，比如二次封装的话就需要设置，默认为 0
-                .setSaveDays(3)// 设置日志可保留天数，默认为 -1 表示无限时长
-                // 新增 ArrayList 格式化器，默认已支持 Array, Throwable, Bundle, Intent 的格式化输出
-                .addFormatter(new LogUtils.IFormatter<ArrayList>() {
-                    @Override
-                    public String format(ArrayList list) {
-                        return "LogUtils Formatter ArrayList { " + list.toString() + " }";
-                    }
-                });
-        LogUtils.d(config.toString());
-    }
-
-    @SuppressLint("MissingPermission")
-    private void initCrash() {
-        CrashUtils.init(new CrashUtils.OnCrashListener() {
-            @Override
-            public void onCrash(String crashInfo, Throwable e) {
-                LogUtils.e(crashInfo);
-                AppUtils.relaunchApp();
-            }
-        });
-    }
-}
-
-
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseActivity.java b/app/src/main/java/com/blankj/androidutilcode/base/BaseActivity.java
deleted file mode 100644
index 42f16d9fa8..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseActivity.java
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.os.Bundle;
-import android.support.annotation.LayoutRes;
-import android.support.v7.app.AppCompatActivity;
-import android.view.LayoutInflater;
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/24
- *     desc  : base about activity
- * </pre>
- */
-public abstract class BaseActivity extends AppCompatActivity
-        implements IBaseView {
-
-    protected View     mContentView;
-    protected Activity mActivity;
-
-    /**
-     * 上次点击时间
-     */
-    private long lastClick = 0;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        mActivity = this;
-        Bundle bundle = getIntent().getExtras();
-        initData(bundle);
-        setBaseView(bindLayout());
-        initView(savedInstanceState, mContentView);
-        doBusiness();
-    }
-
-    @SuppressLint("ResourceType")
-    protected void setBaseView(@LayoutRes int layoutId) {
-        if (layoutId <= 0) return;
-        setContentView(mContentView = LayoutInflater.from(this).inflate(layoutId, null));
-    }
-
-    /**
-     * 判断是否快速点击
-     *
-     * @return {@code true}: 是<br>{@code false}: 否
-     */
-    private boolean isFastClick() {
-        long now = System.currentTimeMillis();
-        if (now - lastClick >= 200) {
-            lastClick = now;
-            return false;
-        }
-        return true;
-    }
-
-    @Override
-    public void onClick(final View view) {
-        if (!isFastClick()) onWidgetClick(view);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseApplication.java b/app/src/main/java/com/blankj/androidutilcode/base/BaseApplication.java
deleted file mode 100644
index db1a8cac36..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseApplication.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.app.Activity;
-import android.app.Application;
-import android.os.Bundle;
-import android.util.Log;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/03/30
- *     desc  : base about application
- * </pre>
- */
-public class BaseApplication extends Application {
-
-    private static final String TAG = "BaseApplication";
-
-    private static BaseApplication sInstance;
-
-    public static BaseApplication getInstance() {
-        return sInstance;
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        sInstance = this;
-        registerActivityLifecycleCallbacks(mCallbacks);
-    }
-
-    private ActivityLifecycleCallbacks mCallbacks = new ActivityLifecycleCallbacks() {
-
-        @Override
-        public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
-            Log.d(TAG, "onActivityCreated() called with: activity = [" + activity + "], savedInstanceState = [" + savedInstanceState + "]");
-        }
-
-        @Override
-        public void onActivityStarted(Activity activity) {
-            Log.d(TAG, "onActivityStarted() called with: activity = [" + activity + "]");
-        }
-
-        @Override
-        public void onActivityResumed(Activity activity) {
-            Log.d(TAG, "onActivityResumed() called with: activity = [" + activity + "]");
-        }
-
-        @Override
-        public void onActivityPaused(Activity activity) {
-            Log.d(TAG, "onActivityPaused() called with: activity = [" + activity + "]");
-        }
-
-        @Override
-        public void onActivityStopped(Activity activity) {
-            Log.d(TAG, "onActivityStopped() called with: activity = [" + activity + "]");
-        }
-
-        @Override
-        public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
-            Log.d(TAG, "onActivitySaveInstanceState() called with: activity = [" + activity + "], outState = [" + outState + "]");
-        }
-
-        @Override
-        public void onActivityDestroyed(Activity activity) {
-            Log.d(TAG, "onActivityDestroyed() called with: activity = [" + activity + "]");
-        }
-    };
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseBackActivity.java b/app/src/main/java/com/blankj/androidutilcode/base/BaseBackActivity.java
deleted file mode 100644
index dab3c6c092..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseBackActivity.java
+++ /dev/null
@@ -1,66 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.annotation.SuppressLint;
-import android.support.annotation.LayoutRes;
-import android.support.design.widget.AppBarLayout;
-import android.support.design.widget.CoordinatorLayout;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.app.ActionBar;
-import android.support.v7.widget.Toolbar;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.widget.FrameLayout;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.utilcode.util.BarUtils;
-import com.r0adkll.slidr.Slidr;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/06/27
- *     desc  : base about back activity
- * </pre>
- */
-public abstract class BaseBackActivity extends BaseActivity {
-
-    protected CoordinatorLayout rootLayout;
-    protected Toolbar           mToolbar;
-    protected AppBarLayout      abl;
-    protected FrameLayout       flActivityContainer;
-
-    @SuppressLint("ResourceType")
-    @Override
-    protected void setBaseView(@LayoutRes int layoutId) {
-        Slidr.attach(this);
-        mContentView = LayoutInflater.from(this).inflate(R.layout.activity_back, null);
-        setContentView(mContentView);
-        rootLayout = findViewById(R.id.root_layout);
-        abl = findViewById(R.id.abl);
-        mToolbar = findViewById(R.id.toolbar);
-        flActivityContainer = findViewById(R.id.activity_container);
-        if (layoutId > 0) {
-            flActivityContainer.addView(LayoutInflater.from(this).inflate(layoutId, flActivityContainer, false));
-        }
-        setSupportActionBar(mToolbar);
-        getToolBar().setDisplayHomeAsUpEnabled(true);
-
-        BarUtils.setStatusBarColor(this, ContextCompat.getColor(UtilsApp.getInstance(), R.color.colorPrimary), 0);
-        BarUtils.addMarginTopEqualStatusBarHeight(rootLayout);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        if (item.getItemId() == android.R.id.home) {
-            finish();
-        }
-        return super.onOptionsItemSelected(item);
-    }
-
-    protected ActionBar getToolBar() {
-        return getSupportActionBar();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseDrawerActivity.java b/app/src/main/java/com/blankj/androidutilcode/base/BaseDrawerActivity.java
deleted file mode 100644
index 7e44330965..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseDrawerActivity.java
+++ /dev/null
@@ -1,56 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.content.Intent;
-import android.net.Uri;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.design.widget.NavigationView;
-import android.support.v4.widget.DrawerLayout;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.widget.FrameLayout;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.androidutilcode.R;
-import com.blankj.utilcode.util.ActivityUtils;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/06/27
- *     desc  : base about drawer activity
- * </pre>
- */
-public abstract class BaseDrawerActivity extends BaseActivity {
-
-    protected DrawerLayout rootLayout;
-    protected FrameLayout  flActivityContainer;
-
-    NavigationView.OnNavigationItemSelectedListener mListener = new NavigationView.OnNavigationItemSelectedListener() {
-        @Override
-        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
-            switch (item.getItemId()) {
-                case R.id.action_git_hub:
-                    ActivityUtils.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(Config.GITHUB)));
-                    break;
-                case R.id.action_blog:
-                    ActivityUtils.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(Config.BLOG)));
-                    break;
-            }
-            return false;
-        }
-    };
-
-    @Override
-    protected void setBaseView(@LayoutRes int layoutId) {
-        mContentView = LayoutInflater.from(this).inflate(R.layout.activity_drawer, null);
-        setContentView(mContentView);
-        rootLayout = findViewById(R.id.root_layout);
-        flActivityContainer = findViewById(R.id.activity_container);
-        flActivityContainer.addView(LayoutInflater.from(this).inflate(layoutId, flActivityContainer, false));
-        NavigationView navigationView = findViewById(R.id.nav_view);
-        navigationView.setNavigationItemSelectedListener(mListener);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseFragment.java b/app/src/main/java/com/blankj/androidutilcode/base/BaseFragment.java
deleted file mode 100644
index a1ff0dabc0..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseFragment.java
+++ /dev/null
@@ -1,121 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.app.Activity;
-import android.os.Bundle;
-import android.support.annotation.IdRes;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentTransaction;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/03/28
- *     desc  : base about v4-fragment
- * </pre>
- */
-public abstract class BaseFragment extends Fragment
-        implements IBaseView {
-
-    private static final String TAG                  = "BaseFragment";
-    private static final String STATE_SAVE_IS_HIDDEN = "STATE_SAVE_IS_HIDDEN";
-
-    protected View     mContentView;
-    protected Activity mActivity;
-
-    private long lastClick = 0;
-
-    @Override
-    public void onCreate(@Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onCreate: ");
-        super.onCreate(savedInstanceState);
-        if (savedInstanceState != null) {
-            boolean isSupportHidden = savedInstanceState.getBoolean(STATE_SAVE_IS_HIDDEN);
-            FragmentTransaction ft = getFragmentManager().beginTransaction();
-            if (isSupportHidden) {
-                ft.hide(this);
-            } else {
-                ft.show(this);
-            }
-            ft.commitAllowingStateLoss();
-        }
-    }
-
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onCreateView: ");
-        setBaseView(inflater, bindLayout());
-        return mContentView;
-    }
-
-    protected void setBaseView(@NonNull LayoutInflater inflater, @LayoutRes int layoutId) {
-        if (layoutId <= 0) return;
-        mContentView = inflater.inflate(layoutId, null);
-    }
-
-    @Override
-    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onViewCreated: ");
-        super.onViewCreated(view, savedInstanceState);
-        Bundle bundle = getArguments();
-        initData(bundle);
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onActivityCreated: ");
-        super.onActivityCreated(savedInstanceState);
-        mActivity = getActivity();
-        initView(savedInstanceState, mContentView);
-        doBusiness();
-    }
-
-    @Override
-    public void onDestroyView() {
-        Log.d(TAG, "onDestroyView: ");
-        if (mContentView != null) {
-            ((ViewGroup) mContentView.getParent()).removeView(mContentView);
-        }
-        super.onDestroyView();
-    }
-
-    @Override
-    public void onDestroy() {
-        Log.d(TAG, "onDestroy: ");
-        super.onDestroy();
-    }
-
-    @Override
-    public void onSaveInstanceState(@NonNull Bundle outState) {
-        Log.d(TAG, "onSaveInstanceState: ");
-        super.onSaveInstanceState(outState);
-        outState.putBoolean(STATE_SAVE_IS_HIDDEN, isHidden());
-    }
-
-    private boolean isFastClick() {
-        long now = System.currentTimeMillis();
-        if (now - lastClick >= 200) {
-            lastClick = now;
-            return false;
-        }
-        return true;
-    }
-
-    @Override
-    public void onClick(View view) {
-        if (!isFastClick()) onWidgetClick(view);
-    }
-
-    public <T extends View> T findViewById(@IdRes int id) {
-        if (mContentView == null) throw new NullPointerException("ContentView is null.");
-        return mContentView.findViewById(id);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseKotlinActivity.kt b/app/src/main/java/com/blankj/androidutilcode/base/BaseKotlinActivity.kt
deleted file mode 100644
index a82bf154de..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseKotlinActivity.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.blankj.androidutilcode.base
-
-import android.support.v7.app.AppCompatActivity
-
-class BaseKotlinActivity : AppCompatActivity() {
-
-
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/BaseLazyFragment.java b/app/src/main/java/com/blankj/androidutilcode/base/BaseLazyFragment.java
deleted file mode 100644
index 05c88cc8e9..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/BaseLazyFragment.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.util.Log;
-
-/**
- * <pre>
- *     author: blankj
- *     blog  : http://blankj.com
- *     time  : 2018/03/23
- *     desc  : base about lazy fragment
- * </pre>
- */
-public abstract class BaseLazyFragment extends BaseFragment {
-
-    private static final String TAG = "BaseLazyFragment";
-
-    private boolean isDataLoaded;
-
-    public abstract void doLazyBusiness();
-
-    @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        Log.d(TAG, "setUserVisibleHint: " + isVisibleToUser);
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser && mContentView != null && !isDataLoaded) {
-            doLazyBusiness();
-            isDataLoaded = true;
-        }
-    }
-
-    @Override
-    public void doBusiness() {
-        if (getUserVisibleHint()) {
-            doLazyBusiness();
-            isDataLoaded = true;
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/IBaseView.java b/app/src/main/java/com/blankj/androidutilcode/base/IBaseView.java
deleted file mode 100644
index 01e16c64fa..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/IBaseView.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.blankj.androidutilcode.base;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/06/27
- *     desc  :
- * </pre>
- */
-interface IBaseView extends View.OnClickListener {
-
-    /**
-     * 初始化数据
-     *
-     * @param bundle 传递过来的 bundle
-     */
-    void initData(@Nullable final Bundle bundle);
-
-    /**
-     * 绑定布局
-     *
-     * @return 布局 Id
-     */
-    int bindLayout();
-
-    /**
-     * 初始化 view
-     */
-    void initView(final Bundle savedInstanceState, final View contentView);
-
-    /**
-     * 业务操作
-     */
-    void doBusiness();
-
-    /**
-     * 视图点击事件
-     *
-     * @param view 视图
-     */
-    void onWidgetClick(final View view);
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/rv/BaseViewHolder.java b/app/src/main/java/com/blankj/androidutilcode/base/rv/BaseViewHolder.java
deleted file mode 100644
index 2da4de8849..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/rv/BaseViewHolder.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.blankj.androidutilcode.base.rv;
-
-import android.support.annotation.IdRes;
-import android.support.v7.widget.RecyclerView;
-import android.util.SparseArray;
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/22
- *     desc  :
- * </pre>
- */
-public class BaseViewHolder extends RecyclerView.ViewHolder {
-
-    private SparseArray<View> viewArray = new SparseArray<>();
-
-    public BaseViewHolder(View itemView) {
-        super(itemView);
-    }
-
-    @SuppressWarnings("unchecked")
-    public <T extends View> T getView(@IdRes final int viewId) {
-        View view = viewArray.get(viewId);
-        if (view == null) {
-            view = itemView.findViewById(viewId);
-            viewArray.put(viewId, view);
-        }
-        return (T) view;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/rv/adapter/BaseAdapter.java b/app/src/main/java/com/blankj/androidutilcode/base/rv/adapter/BaseAdapter.java
deleted file mode 100644
index 506ee91f48..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/rv/adapter/BaseAdapter.java
+++ /dev/null
@@ -1,198 +0,0 @@
-package com.blankj.androidutilcode.base.rv.adapter;
-
-import android.content.Context;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
-import android.util.SparseArray;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import com.blankj.androidutilcode.base.rv.BaseViewHolder;
-import com.blankj.androidutilcode.base.rv.listener.OnItemClickListener;
-import com.blankj.androidutilcode.base.rv.listener.OnItemLongClickListener;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/22
- *     desc  :
- * </pre>
- */
-public abstract class BaseAdapter<M> extends RecyclerView.Adapter<BaseViewHolder> {
-
-    protected static final int VIEW_TYPE_EMPTY   = 0xfff0;
-    protected static final int VIEW_TYPE_HEADER  = 0xfff1;
-    protected static final int VIEW_TYPE_FOOTER  = 0xfff2;
-    protected static final int VIEW_TYPE_DEFAULT = 0xfff3;
-
-    private final SparseArray<View> mViewArray = new SparseArray<>();
-
-    protected List<M>   mData;
-    protected Context   mContext;
-    protected ViewGroup mParent;
-
-    protected LayoutInflater mInflater;
-
-    private OnItemClickListener     mClickListener;
-    private OnItemLongClickListener mLongClickListener;
-
-    public void setData(@NonNull final List<M> data) {
-        mData = data;
-    }
-
-    @Override
-    public final int getItemViewType(int position) {
-        if (getDataSize() == 0 && mViewArray.get(VIEW_TYPE_EMPTY) != null) {
-            return VIEW_TYPE_EMPTY;
-        } else if (position == 0 && mViewArray.get(VIEW_TYPE_HEADER) != null) {
-            return VIEW_TYPE_HEADER;
-        } else if (position == getItemCount() - 1 && mViewArray.get(VIEW_TYPE_FOOTER) != null) {
-            return VIEW_TYPE_FOOTER;
-        } else {
-            return getCustomViewType(position);
-        }
-    }
-
-    protected int getCustomViewType(final int position) {
-        return VIEW_TYPE_DEFAULT;
-    }
-
-    protected abstract int bindLayout(final int viewType);
-
-    @Override
-    public BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        if (mParent == null) {
-            mParent = parent;
-            mContext = parent.getContext();
-            mInflater = LayoutInflater.from(mContext);
-        }
-        View itemView = mViewArray.get(viewType);
-        if (itemView == null) {
-            itemView = inflateLayout(bindLayout(viewType));
-        }
-        return new BaseViewHolder(itemView);
-    }
-
-    @Override
-    public final void onBindViewHolder(BaseViewHolder holder, int position) {
-        switch (holder.getItemViewType()) {
-            case VIEW_TYPE_EMPTY:
-            case VIEW_TYPE_HEADER:
-            case VIEW_TYPE_FOOTER:
-                break;
-            default:
-                bindCustomViewHolder(holder, position);
-                break;
-        }
-    }
-
-    protected void bindCustomViewHolder(final BaseViewHolder holder, final int position) {
-        final int dataPos = position - (mViewArray.get(VIEW_TYPE_HEADER) == null ? 0 : 1);
-        holder.itemView.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                if (mClickListener != null) {
-                    mClickListener.onItemClick(v, dataPos);
-                }
-            }
-        });
-        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
-            @Override
-            public boolean onLongClick(View v) {
-                return mLongClickListener != null && mLongClickListener.onItemLongClick(v, dataPos);
-            }
-        });
-        bind(holder, mData.get(dataPos));
-    }
-
-    protected abstract void bind(final BaseViewHolder holder, final M data);
-
-    @Override
-    public int getItemCount() {
-        return getDataSize() + getExtraViewCount();
-    }
-
-    public void setEmptyView(@NonNull View emptyView) {
-        setView(VIEW_TYPE_EMPTY, emptyView);
-    }
-
-    public View getEmptyView() {
-        return getView(VIEW_TYPE_EMPTY);
-    }
-
-    public void removeEmptyView() {
-        removeView(VIEW_TYPE_EMPTY);
-    }
-
-    public void setHeaderView(@NonNull View headerView) {
-        setView(VIEW_TYPE_HEADER, headerView);
-    }
-
-    public View getHeaderView() {
-        return getView(VIEW_TYPE_HEADER);
-    }
-
-    public void removeHeaderView() {
-        removeView(VIEW_TYPE_HEADER);
-    }
-
-    public void setFooterView(@NonNull View footerView) {
-        setView(VIEW_TYPE_FOOTER, footerView);
-    }
-
-    public View getFooterView() {
-        return getView(VIEW_TYPE_FOOTER);
-    }
-
-    public void removeFooterView() {
-        removeView(VIEW_TYPE_FOOTER);
-    }
-
-    private void setView(final int type, @NonNull final View view) {
-        mViewArray.put(type, view);
-        notifyDataSetChanged();
-    }
-
-    private View getView(final int type) {
-        return mViewArray.get(type);
-    }
-
-    private void removeView(final int type) {
-        if (mViewArray.get(type) != null) {
-            mViewArray.delete(type);
-            notifyDataSetChanged();
-        }
-    }
-
-    private View inflateLayout(@LayoutRes final int layoutId) {
-        return mInflater.inflate(layoutId, mParent, false);
-    }
-
-    private int getExtraViewCount() {
-        int extraViewCount = 0;
-        if (mViewArray.get(VIEW_TYPE_HEADER) != null) {
-            extraViewCount++;
-        }
-        if (mViewArray.get(VIEW_TYPE_FOOTER) != null) {
-            extraViewCount++;
-        }
-        return extraViewCount;
-    }
-
-    public void setOnItemClickListener(final OnItemClickListener clickListener) {
-        mClickListener = clickListener;
-    }
-
-    public void setOnItemLongClickListener(final OnItemLongClickListener longClickListener) {
-        mLongClickListener = longClickListener;
-    }
-
-    private int getDataSize() {
-        return mData == null ? 0 : mData.size();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/rv/adapter/SingleAdapter.java b/app/src/main/java/com/blankj/androidutilcode/base/rv/adapter/SingleAdapter.java
deleted file mode 100644
index 60e12c6514..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/rv/adapter/SingleAdapter.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.blankj.androidutilcode.base.rv.adapter;
-
-import android.support.annotation.LayoutRes;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/22
- *     desc  :
- * </pre>
- */
-public abstract class SingleAdapter<M> extends BaseAdapter<M> {
-
-    private final int mLayoutId;
-
-    public SingleAdapter(List<M> list, @LayoutRes int layoutId) {
-        setData(list);
-        mLayoutId = layoutId;
-    }
-
-    @Override
-    protected int bindLayout(final int viewType) {
-        return mLayoutId;
-    }
-
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/rv/listener/OnItemClickListener.java b/app/src/main/java/com/blankj/androidutilcode/base/rv/listener/OnItemClickListener.java
deleted file mode 100644
index f964cd210f..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/rv/listener/OnItemClickListener.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.blankj.androidutilcode.base.rv.listener;
-
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/21
- *     desc  :
- * </pre>
- */
-public interface OnItemClickListener {
-    void onItemClick(final View view, final int position);
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/rv/listener/OnItemLongClickListener.java b/app/src/main/java/com/blankj/androidutilcode/base/rv/listener/OnItemLongClickListener.java
deleted file mode 100644
index 5f065dc99c..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/base/rv/listener/OnItemLongClickListener.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.blankj.androidutilcode.base.rv.listener;
-
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/21
- *     desc  :
- * </pre>
- */
-public interface OnItemLongClickListener {
-    boolean onItemLongClick(final View view, final int position);
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/data/DataManager.java b/app/src/main/java/com/blankj/androidutilcode/data/DataManager.java
deleted file mode 100644
index 10699a5894..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/data/DataManager.java
+++ /dev/null
@@ -1,75 +0,0 @@
-package com.blankj.androidutilcode.data;
-
-import com.blankj.utilcode.util.SPUtils;
-
-import java.util.Map;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/08
- *     desc  : manager about data
- * </pre>
- */
-public class DataManager {
-
-    private static final SPUtils SP_UTILS = SPUtils.getInstance("demo");
-
-    public static void putString() {
-        SP_UTILS.put("STRING", "string");
-    }
-
-    public static String getString() {
-        return SP_UTILS.getString("STRING");
-    }
-
-    public static void putInt() {
-        SP_UTILS.put("INT", 21);
-    }
-
-    public static String getInt() {
-        return String.valueOf(SP_UTILS.getInt("INT"));
-    }
-
-    public static void putLong() {
-        SP_UTILS.put("LONG", Long.MAX_VALUE);
-    }
-
-    public static String getLong() {
-        return String.valueOf(SP_UTILS.getLong("LONG"));
-    }
-
-    public static void putFloat() {
-        SP_UTILS.put("FLOAT", (float) Math.PI);
-    }
-
-    public static String getFloat() {
-        return String.valueOf(SP_UTILS.getFloat("FLOAT"));
-    }
-
-    public static void putBoolean() {
-        SP_UTILS.put("BOOLEAN", true);
-    }
-
-    public static String getBoolean() {
-        return String.valueOf(SP_UTILS.getBoolean("BOOLEAN"));
-    }
-
-    public static void clear() {
-        SP_UTILS.clear();
-    }
-
-    public static String sp2String() {
-        StringBuilder sb = new StringBuilder();
-        Map<String, ?> map = SP_UTILS.getAll();
-        for (Map.Entry<String, ?> entry : map.entrySet()) {
-            sb.append(entry.getKey())
-                    .append(": ")
-                    .append(entry.getValue())
-                    .append("\n");
-        }
-        return sb.toString();
-    }
-
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/CoreUtilActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/CoreUtilActivity.java
deleted file mode 100644
index c2db077c3c..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/CoreUtilActivity.java
+++ /dev/null
@@ -1,176 +0,0 @@
-package com.blankj.androidutilcode.feature.core;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.feature.core.activity.ActivityActivity;
-import com.blankj.androidutilcode.feature.core.adaptScreen.AdaptScreenActivity;
-import com.blankj.androidutilcode.feature.core.app.AppActivity;
-import com.blankj.androidutilcode.feature.core.bar.BarActivity;
-import com.blankj.androidutilcode.feature.core.clean.CleanActivity;
-import com.blankj.androidutilcode.feature.core.device.DeviceActivity;
-import com.blankj.androidutilcode.feature.core.fragment.FragmentActivity;
-import com.blankj.androidutilcode.feature.core.image.ImageActivity;
-import com.blankj.androidutilcode.feature.core.keyboard.KeyboardActivity;
-import com.blankj.androidutilcode.feature.core.log.LogActivity;
-import com.blankj.androidutilcode.feature.core.metaData.MetaDataActivity;
-import com.blankj.androidutilcode.feature.core.network.NetworkActivity;
-import com.blankj.androidutilcode.feature.core.path.PathActivity;
-import com.blankj.androidutilcode.feature.core.permission.PermissionActivity;
-import com.blankj.androidutilcode.feature.core.phone.PhoneActivity;
-import com.blankj.androidutilcode.feature.core.process.ProcessActivity;
-import com.blankj.androidutilcode.feature.core.reflect.ReflectActivity;
-import com.blankj.androidutilcode.feature.core.resource.ResourceActivity;
-import com.blankj.androidutilcode.feature.core.sdcard.SDCardActivity;
-import com.blankj.androidutilcode.feature.core.snackbar.SnackbarActivity;
-import com.blankj.androidutilcode.feature.core.sp.SPActivity;
-import com.blankj.androidutilcode.feature.core.span.SpanActivity;
-import com.blankj.androidutilcode.feature.core.toast.ToastActivity;
-import com.blankj.utilcode.util.Utils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  :
- * </pre>
- */
-public class CoreUtilActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, CoreUtilActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_util_core;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Utils.getApp();
-        getToolBar().setTitle(getString(R.string.core_util));
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    public void coreUtilClick(View view) {
-
-    }
-
-    public void activityClick(View view) {
-        ActivityActivity.start(this);
-    }
-
-    public void adaptScreenClick(View view) {
-        AdaptScreenActivity.start(this);
-    }
-
-    public void appClick(View view) {
-        AppActivity.start(this);
-    }
-
-    public void barClick(View view) {
-        BarActivity.start(this);
-    }
-
-    public void cleanClick(View view) {
-        CleanActivity.start(this);
-    }
-
-    public void crashClick(View view) {
-        throw new NullPointerException("crash test");
-    }
-
-    public void deviceClick(View view) {
-        DeviceActivity.start(this);
-    }
-
-    public void fragmentClick(View view) {
-        FragmentActivity.start(this);
-    }
-
-    public void imageClick(View view) {
-        ImageActivity.start(this);
-    }
-
-    public void keyboardClick(View view) {
-        KeyboardActivity.start(this);
-    }
-
-    public void logClick(View view) {
-        LogActivity.start(this);
-    }
-
-    public void metaDataClick(View view) {
-        MetaDataActivity.start(this);
-    }
-
-    public void networkClick(View view) {
-        NetworkActivity.start(this);
-    }
-
-    public void pathClick(View view) {
-        PathActivity.start(this);
-    }
-
-    public void permissionClick(View view) {
-        PermissionActivity.start(this);
-    }
-
-    public void phoneClick(View view) {
-        PhoneActivity.start(this);
-    }
-
-    public void processClick(View view) {
-        ProcessActivity.start(this);
-    }
-
-    public void reflectClick(View view) {
-        ReflectActivity.start(this);
-    }
-
-    public void resourceClick(View view) {
-        ResourceActivity.start(this);
-    }
-
-    public void sdcardClick(View view) {
-        SDCardActivity.start(this);
-    }
-
-    public void snackbarClick(View view) {
-        SnackbarActivity.start(this);
-    }
-
-    public void spClick(View view) {
-        SPActivity.start(this);
-    }
-
-    public void spannableClick(View view) {
-        SpanActivity.start(this);
-    }
-
-    public void toastClick(View view) {
-        ToastActivity.start(this);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/ActivityActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/ActivityActivity.java
deleted file mode 100644
index 0e44bd818e..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/ActivityActivity.java
+++ /dev/null
@@ -1,285 +0,0 @@
-package com.blankj.androidutilcode.feature.core.activity;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.graphics.drawable.BitmapDrawable;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.ActivityOptionsCompat;
-import android.view.View;
-import android.view.Window;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.androidutilcode.MainActivity;
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.feature.core.CoreUtilActivity;
-import com.blankj.utilcode.util.ActivityUtils;
-import com.blankj.utilcode.util.LogUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about ActivityUtils
- * </pre>
- */
-public class ActivityActivity extends BaseBackActivity {
-
-    ImageView viewSharedElement;
-    Random    random = new Random();
-    private Bitmap   bitmap;
-    private Intent   intent;
-    private Intent[] intents = new Intent[2];
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, ActivityActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            getWindow().requestFeature(Window.FEATURE_CONTENT_TRANSITIONS);
-        }
-        return R.layout.activity_activity;
-    }
-
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_activity));
-        viewSharedElement = findViewById(R.id.view_shared_element);
-        findViewById(R.id.btn_clz).setOnClickListener(this);
-        findViewById(R.id.btn_clz_opt).setOnClickListener(this);
-        findViewById(R.id.btn_clz_anim).setOnClickListener(this);
-        findViewById(R.id.btn_act_clz).setOnClickListener(this);
-        findViewById(R.id.btn_act_clz_opt).setOnClickListener(this);
-        findViewById(R.id.btn_act_clz_shared_element).setOnClickListener(this);
-        findViewById(R.id.btn_act_clz_anim).setOnClickListener(this);
-        findViewById(R.id.btn_pkg_cls).setOnClickListener(this);
-        findViewById(R.id.btn_pkg_cls_opt).setOnClickListener(this);
-        findViewById(R.id.btn_pkg_cls_anim).setOnClickListener(this);
-        findViewById(R.id.btn_act_pkg_cls).setOnClickListener(this);
-        findViewById(R.id.btn_act_pkg_cls_opt).setOnClickListener(this);
-        findViewById(R.id.btn_act_pkg_cls_shared_element).setOnClickListener(this);
-        findViewById(R.id.btn_act_pkg_cls_anim).setOnClickListener(this);
-        findViewById(R.id.btn_intent).setOnClickListener(this);
-        findViewById(R.id.btn_intent_opt).setOnClickListener(this);
-        findViewById(R.id.btn_intent_shared_element).setOnClickListener(this);
-        findViewById(R.id.btn_intent_anim).setOnClickListener(this);
-        findViewById(R.id.btn_intents).setOnClickListener(this);
-        findViewById(R.id.btn_intents_opt).setOnClickListener(this);
-        findViewById(R.id.btn_intents_anim).setOnClickListener(this);
-        findViewById(R.id.btn_act_intents).setOnClickListener(this);
-        findViewById(R.id.btn_act_intents_opt).setOnClickListener(this);
-        findViewById(R.id.btn_act_intents_anim).setOnClickListener(this);
-        findViewById(R.id.btn_act_clz_shared_element).setOnClickListener(this);
-        findViewById(R.id.btn_start_home_activity).setOnClickListener(this);
-        findViewById(R.id.btn_finish_activity).setOnClickListener(this);
-        findViewById(R.id.btn_finish_to_activity).setOnClickListener(this);
-        findViewById(R.id.btn_finish_all_activities).setOnClickListener(this);
-        TextView tvAboutActivity = findViewById(R.id.tv_about_activity);
-        tvAboutActivity.setText(new SpanUtils()
-                .appendLine("isActivityExists: " + ActivityUtils.isActivityExists(Config.PKG, SubActivityActivity.class.getName()))
-                .appendLine("getLauncherActivity: " + ActivityUtils.getLauncherActivity(Config.PKG))
-                .appendLine("getTopActivity: " + ActivityUtils.getTopActivity())
-                .appendLine("isActivityExistsInStack: " + ActivityUtils.isActivityExistsInStack(CoreUtilActivity.class))
-                .append("getActivityIcon: ")
-                .appendImage(ActivityUtils.getActivityIcon(this), SpanUtils.ALIGN_CENTER)
-                .appendLine()
-                .append("getActivityLogo: ")
-                .appendImage(ActivityUtils.getActivityLogo(this), SpanUtils.ALIGN_CENTER)
-                .create()
-        );
-        bitmap = ((BitmapDrawable) viewSharedElement.getDrawable()).getBitmap();
-
-        intent = new Intent(this, SubActivityActivity.class);
-        intents[0] = intent;
-        intents[1] = new Intent(this, SubActivityActivity.class);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_clz:
-                ActivityUtils.startActivity(SubActivityActivity.class);
-                break;
-            case R.id.btn_clz_opt:
-                ActivityUtils.startActivity(SubActivityActivity.class,
-                        getOption(random.nextInt(5)));
-                break;
-            case R.id.btn_clz_anim:
-                ActivityUtils.startActivity(SubActivityActivity.class,
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_act_clz:
-                ActivityUtils.startActivity(this,
-                        SubActivityActivity.class);
-                break;
-            case R.id.btn_act_clz_opt:
-                ActivityUtils.startActivity(this,
-                        SubActivityActivity.class,
-                        getOption(random.nextInt(5)));
-                break;
-
-            case R.id.btn_act_clz_shared_element:
-                ActivityUtils.startActivity(this,
-                        SubActivityActivity.class,
-                        viewSharedElement);
-                break;
-            case R.id.btn_act_clz_anim:
-                ActivityUtils.startActivity(this,
-                        SubActivityActivity.class,
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_pkg_cls:
-                ActivityUtils.startActivity(this.getPackageName(),
-                        SubActivityActivity.class.getName());
-                break;
-            case R.id.btn_pkg_cls_opt:
-                ActivityUtils.startActivity(this.getPackageName(),
-                        SubActivityActivity.class.getName(),
-                        getOption(random.nextInt(5)));
-                break;
-            case R.id.btn_pkg_cls_anim:
-                ActivityUtils.startActivity(this.getPackageName(),
-                        SubActivityActivity.class.getName(),
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_act_pkg_cls:
-                ActivityUtils.startActivity(this,
-                        this.getPackageName(),
-                        SubActivityActivity.class.getName());
-                break;
-            case R.id.btn_act_pkg_cls_opt:
-                ActivityUtils.startActivity(this,
-                        this.getPackageName(),
-                        SubActivityActivity.class.getName(),
-                        getOption(random.nextInt(5)));
-                break;
-            case R.id.btn_act_pkg_cls_shared_element:
-                ActivityUtils.startActivity(this,
-                        this.getPackageName(),
-                        SubActivityActivity.class.getName(),
-                        viewSharedElement);
-                break;
-            case R.id.btn_act_pkg_cls_anim:
-                ActivityUtils.startActivity(this,
-                        this.getPackageName(),
-                        SubActivityActivity.class.getName(),
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_intent:
-                ActivityUtils.startActivity(this,
-                        intent);
-                break;
-            case R.id.btn_intent_opt:
-                ActivityUtils.startActivity(this,
-                        intent,
-                        getOption(random.nextInt(5)));
-                break;
-            case R.id.btn_intent_shared_element:
-                ActivityUtils.startActivity(this,
-                        intent,
-                        viewSharedElement);
-                break;
-            case R.id.btn_intent_anim:
-                ActivityUtils.startActivity(this,
-                        intent,
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_intents:
-                ActivityUtils.startActivities(intents);
-                break;
-            case R.id.btn_intents_opt:
-                ActivityUtils.startActivities(intents,
-                        getOption(random.nextInt(5)));
-                break;
-            case R.id.btn_intents_anim:
-                ActivityUtils.startActivities(intents,
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_act_intents:
-                ActivityUtils.startActivities(this,
-                        intents,
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_act_intents_opt:
-                ActivityUtils.startActivities(this,
-                        intents,
-                        getOption(random.nextInt(5)));
-                break;
-            case R.id.btn_act_intents_anim:
-                ActivityUtils.startActivities(this,
-                        intents,
-                        R.anim.fade_in_1000, R.anim.fade_out_1000);
-                break;
-            case R.id.btn_start_home_activity:
-                ActivityUtils.startHomeActivity();
-                break;
-            case R.id.btn_finish_activity:
-                ActivityUtils.finishActivity(MainActivity.class);
-                break;
-            case R.id.btn_finish_to_activity:
-                ActivityUtils.finishToActivity(MainActivity.class, false, true);
-                break;
-            case R.id.btn_finish_all_activities:
-                ActivityUtils.finishAllActivities();
-                break;
-        }
-    }
-
-    private Bundle getOption(int type) {
-        LogUtils.d(type);
-        switch (type) {
-            case 0:
-                return ActivityOptionsCompat.makeCustomAnimation(this,
-                        R.anim.slide_in_right_1000,
-                        R.anim.slide_out_left_1000)
-                        .toBundle();
-            case 1:
-                return ActivityOptionsCompat.makeScaleUpAnimation(viewSharedElement,
-                        viewSharedElement.getWidth() / 2,
-                        viewSharedElement.getHeight() / 2,
-                        0, 0)
-                        .toBundle();
-            case 2:
-                return ActivityOptionsCompat.makeThumbnailScaleUpAnimation(viewSharedElement,
-                        bitmap,
-                        0, 0)
-                        .toBundle();
-            case 3:
-                return ActivityOptionsCompat.makeSceneTransitionAnimation(this,
-                        viewSharedElement,
-                        getString(R.string.activity_shared_element))
-                        .toBundle();
-            case 4:
-                return ActivityOptionsCompat.makeClipRevealAnimation(viewSharedElement,
-                        viewSharedElement.getWidth() / 2,
-                        viewSharedElement.getHeight() / 2,
-                        0, 0)
-                        .toBundle();
-            default:
-                return null;
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/SubActivityActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/SubActivityActivity.java
deleted file mode 100644
index c1869269c4..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/SubActivityActivity.java
+++ /dev/null
@@ -1,66 +0,0 @@
-package com.blankj.androidutilcode.feature.core.activity;
-
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.ActivityCompat;
-import android.view.View;
-import android.view.Window;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about ActivityUtils
- * </pre>
- */
-public class SubActivityActivity extends BaseBackActivity {
-
-    Random random = new Random();
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            getWindow().requestFeature(Window.FEATURE_CONTENT_TRANSITIONS);
-        }
-        return R.layout.activity_activity_sub;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        ((View) flActivityContainer.getParent()).setBackgroundColor(Color.rgb(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-    }
-
-    @Override
-    public void onBackPressed() {
-        super.onBackPressed();
-        ActivityCompat.finishAfterTransition(this);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/AdaptScreenActivity.kt b/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/AdaptScreenActivity.kt
deleted file mode 100644
index bf04b636e1..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/AdaptScreenActivity.kt
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.blankj.androidutilcode.feature.core.adaptScreen
-
-import android.content.Context
-import android.content.Intent
-import android.os.Bundle
-import android.view.View
-import com.blankj.androidutilcode.R
-import com.blankj.androidutilcode.base.BaseBackActivity
-import kotlinx.android.synthetic.main.activity_adapt_screen.*
-
-class AdaptScreenActivity : BaseBackActivity() {
-
-    companion object {
-        @JvmStatic
-        fun start(context: Context) {
-            val starter = Intent(context, AdaptScreenActivity::class.java)
-            context.startActivity(starter)
-        }
-    }
-
-    override fun initData(bundle: Bundle?) {}
-
-    override fun bindLayout(): Int {
-        return R.layout.activity_adapt_screen;
-    }
-
-    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
-        adaptWidthBtn.setOnClickListener { WidthActivity.start(this) }
-        adaptHeightBtn.setOnClickListener { HeightActivity.start(this) }
-        closeAdaptBtn.setOnClickListener { CloseAdaptActivity.start(this) }
-    }
-
-    override fun doBusiness() {}
-
-    override fun onWidgetClick(view: View?) {}
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/CloseAdaptActivity.kt b/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/CloseAdaptActivity.kt
deleted file mode 100644
index c4caa83c71..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/CloseAdaptActivity.kt
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.blankj.androidutilcode.feature.core.adaptScreen
-
-import android.content.Context
-import android.content.Intent
-import android.content.res.Resources
-import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
-import android.view.WindowManager
-import com.blankj.androidutilcode.R
-import com.blankj.utilcode.util.AdaptScreenUtils
-
-class CloseAdaptActivity : AppCompatActivity() {
-
-    companion object {
-        fun start(context: Context) {
-            val starter = Intent(context, CloseAdaptActivity::class.java)
-            context.startActivity(starter)
-        }
-    }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_adapt_close)
-    }
-
-    override fun getResources(): Resources {
-        return AdaptScreenUtils.closeAdapt(super.getResources())
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/HeightActivity.kt b/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/HeightActivity.kt
deleted file mode 100644
index dc38d45f18..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/HeightActivity.kt
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.blankj.androidutilcode.feature.core.adaptScreen
-
-import android.content.Context
-import android.content.Intent
-import android.content.res.Resources
-import android.graphics.Color
-import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
-import android.view.WindowManager
-import com.blankj.androidutilcode.R
-import com.blankj.utilcode.util.AdaptScreenUtils
-import kotlinx.android.synthetic.main.activity_adapt_height.*
-
-class HeightActivity : AppCompatActivity() {
-
-    companion object {
-        fun start(context: Context) {
-            val starter = Intent(context, HeightActivity::class.java)
-            context.startActivity(starter)
-        }
-    }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_adapt_height)
-
-        heightVebView.setBackgroundColor(Color.parseColor("#f0d26d"))
-    }
-
-    override fun getResources(): Resources {
-        return AdaptScreenUtils.adaptHeight(super.getResources(), 1920)
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/WidthActivity.kt b/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/WidthActivity.kt
deleted file mode 100644
index 38ce3edb07..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/WidthActivity.kt
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.blankj.androidutilcode.feature.core.adaptScreen
-
-import android.content.Context
-import android.content.Intent
-import android.content.res.Resources
-import android.graphics.Color
-import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
-import android.view.WindowManager
-import com.blankj.androidutilcode.R
-import com.blankj.utilcode.util.AdaptScreenUtils
-import kotlinx.android.synthetic.main.activity_adapt_width.*
-
-class WidthActivity : AppCompatActivity() {
-
-    companion object {
-        fun start(context: Context) {
-            val starter = Intent(context, WidthActivity::class.java)
-            context.startActivity(starter)
-        }
-    }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_adapt_width)
-
-        widthVebView.setBackgroundColor(Color.parseColor("#f0d26d"))
-    }
-
-    override fun getResources(): Resources {
-        return AdaptScreenUtils.adaptWidth(super.getResources(), 1080)
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/app/AppActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/app/AppActivity.java
deleted file mode 100644
index 5a9762b9f7..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/app/AppActivity.java
+++ /dev/null
@@ -1,169 +0,0 @@
-package com.blankj.androidutilcode.feature.core.app;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.helper.PermissionHelper;
-import com.blankj.utilcode.util.AppUtils;
-import com.blankj.utilcode.util.FileUtils;
-import com.blankj.utilcode.util.LogUtils;
-import com.blankj.utilcode.util.SpanUtils;
-import com.blankj.utilcode.util.ToastUtils;
-import com.blankj.utilcode.util.Utils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about AppUtils
- * </pre>
- */
-
-public class AppActivity extends BaseBackActivity {
-
-    private final OnReleasedListener listener = new OnReleasedListener() {
-        @Override
-        public void onReleased() {
-            AppUtils.installApp(Config.TEST_APK_PATH);
-        }
-    };
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, AppActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        AppUtils.registerAppStatusChangedListener(this, new Utils.OnAppStatusChangedListener() {
-            @Override
-            public void onForeground() {
-                ToastUtils.showShort("foreground");
-            }
-
-            @Override
-            public void onBackground() {
-                ToastUtils.showShort("background");
-            }
-        });
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_app;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_app));
-
-        findViewById(R.id.btn_install_app).setOnClickListener(this);
-        findViewById(R.id.btn_install_app_silent).setOnClickListener(this);
-        findViewById(R.id.btn_uninstall_app).setOnClickListener(this);
-        findViewById(R.id.btn_uninstall_app_silent).setOnClickListener(this);
-        findViewById(R.id.btn_launch_app).setOnClickListener(this);
-        findViewById(R.id.btn_relaunch_app).setOnClickListener(this);
-        findViewById(R.id.btn_exit_app).setOnClickListener(this);
-        findViewById(R.id.btn_launch_app_details_settings).setOnClickListener(this);
-        TextView tvAboutApp = findViewById(R.id.tv_about_app);
-        tvAboutApp.setText(new SpanUtils()
-                .appendLine("isAppRoot: " + AppUtils.isAppRoot())
-                .appendLine("isAppDebug: " + AppUtils.isAppDebug())
-                .appendLine("isAppSystem: " + AppUtils.isAppSystem())
-                .appendLine("isAppForeground: " + AppUtils.isAppForeground())
-                .append("getAppIcon: ").appendImage(AppUtils.getAppIcon(), SpanUtils.ALIGN_CENTER)
-                .appendLine()
-                .appendLine("getAppPackageName: " + AppUtils.getAppPackageName())
-                .appendLine("getAppName: " + AppUtils.getAppName())
-                .appendLine("getAppPath: " + AppUtils.getAppPath())
-                .appendLine("getAppVersionName: " + AppUtils.getAppVersionName())
-                .appendLine("getAppVersionCode: " + AppUtils.getAppVersionCode())
-                .appendLine("getAppSignatureSHA1: " + AppUtils.getAppSignatureSHA1())
-                .appendLine("getAppSignatureSHA256: " + AppUtils.getAppSignatureSHA256())
-                .append("getAppSignatureMD5: " + AppUtils.getAppSignatureMD5())
-                .create());
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_install_app:
-                if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
-                    ToastUtils.showShort(R.string.app_install_tips);
-                } else {
-                    PermissionHelper.requestStorage(new PermissionHelper.OnPermissionGrantedListener() {
-                        @Override
-                        public void onPermissionGranted() {
-                            if (!FileUtils.isFileExists(Config.TEST_APK_PATH)) {
-                                new ReleaseInstallApkTask(listener).execute();
-                            } else {
-                                listener.onReleased();
-                                LogUtils.d("test apk existed.");
-                            }
-                        }
-                    });
-                }
-                break;
-            case R.id.btn_install_app_silent:
-                if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
-                    ToastUtils.showShort(R.string.app_install_tips);
-                } else {
-                    if (AppUtils.installAppSilent(Config.TEST_APK_PATH)) {
-                        ToastUtils.showShort(R.string.install_successfully);
-                    } else {
-                        ToastUtils.showShort(R.string.install_unsuccessfully);
-                    }
-                }
-                break;
-            case R.id.btn_uninstall_app:
-                if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
-                    AppUtils.uninstallApp(Config.TEST_PKG);
-                } else {
-                    ToastUtils.showShort(R.string.app_uninstall_tips);
-                }
-                break;
-            case R.id.btn_uninstall_app_silent:
-                if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
-                    if (AppUtils.uninstallAppSilent(Config.TEST_PKG, false)) {
-                        ToastUtils.showShort(R.string.uninstall_successfully);
-                    } else {
-                        ToastUtils.showShort(R.string.uninstall_unsuccessfully);
-                    }
-                } else {
-                    ToastUtils.showShort(R.string.app_uninstall_tips);
-                }
-                break;
-            case R.id.btn_launch_app:
-                AppUtils.launchApp(this.getPackageName());
-                break;
-            case R.id.btn_relaunch_app:
-                AppUtils.relaunchApp();
-                break;
-            case R.id.btn_launch_app_details_settings:
-                AppUtils.launchAppDetailsSettings();
-                break;
-            case R.id.btn_exit_app:
-                AppUtils.exitApp();
-                break;
-        }
-    }
-
-    @Override
-    protected void onDestroy() {
-        AppUtils.unregisterAppStatusChangedListener(this);
-        super.onDestroy();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/app/OnReleasedListener.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/app/OnReleasedListener.java
deleted file mode 100644
index 4e935b28c9..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/app/OnReleasedListener.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.blankj.androidutilcode.feature.core.app;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/05/23
- *     desc  :
- * </pre>
- */
-public interface OnReleasedListener {
-    void onReleased();
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/app/ReleaseInstallApkTask.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/app/ReleaseInstallApkTask.java
deleted file mode 100644
index 8bc28dd54b..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/app/ReleaseInstallApkTask.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.blankj.androidutilcode.feature.core.app;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.utilcode.util.ResourceUtils;
-import com.blankj.utilcode.util.ThreadUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/05/23
- *     desc  :
- * </pre>
- */
-public class ReleaseInstallApkTask extends ThreadUtils.SimpleTask<Void> {
-
-    private OnReleasedListener mListener;
-
-    public ReleaseInstallApkTask(final OnReleasedListener listener) {
-        mListener = listener;
-    }
-
-    @Override
-    public Void doInBackground() {
-        ResourceUtils.copyFileFromAssets("test_install", Config.TEST_APK_PATH);
-        return null;
-    }
-
-    @Override
-    public void onSuccess(Void result) {
-        if (mListener != null) {
-            mListener.onReleased();
-        }
-    }
-
-    public void execute() {
-        ThreadUtils.executeByIo(this);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarActivity.java
deleted file mode 100644
index 4c665a4f6f..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarActivity.java
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarActivity extends BaseBackActivity {
-
-    private TextView tvAboutStatus;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_bar));
-
-        tvAboutStatus = findViewById(R.id.tv_about_status);
-        findViewById(R.id.btn_status_bar).setOnClickListener(this);
-        findViewById(R.id.btn_status_bar_color).setOnClickListener(this);
-        findViewById(R.id.btn_status_bar_alpha).setOnClickListener(this);
-        findViewById(R.id.btn_status_bar_image_view).setOnClickListener(this);
-        findViewById(R.id.btn_status_bar_fragment).setOnClickListener(this);
-        findViewById(R.id.btn_status_bar_swipe_back).setOnClickListener(this);
-        findViewById(R.id.btn_status_bar_drawer).setOnClickListener(this);
-        findViewById(R.id.btn_notification_bar).setOnClickListener(this);
-        findViewById(R.id.btn_nav_bar).setOnClickListener(this);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_status_bar:
-                BarStatusActivity.start(this);
-                break;
-            case R.id.btn_status_bar_color:
-                BarStatusColorActivity.start(this);
-                break;
-            case R.id.btn_status_bar_alpha:
-                BarStatusAlphaActivity.start(this);
-                break;
-            case R.id.btn_status_bar_image_view:
-                BarStatusImageViewActivity.start(this);
-                break;
-            case R.id.btn_status_bar_fragment:
-                BarStatusFragmentActivity.start(this);
-                break;
-            case R.id.btn_status_bar_swipe_back:
-                BarStatusSwipeBackActivity.start(this);
-                break;
-            case R.id.btn_status_bar_drawer:
-                BarStatusDrawerActivity.start(this);
-                break;
-            case R.id.btn_notification_bar:
-                BarNotificationActivity.start(this);
-                break;
-            case R.id.btn_nav_bar:
-                BarNavActivity.start(this);
-                break;
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarNavActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarNavActivity.java
deleted file mode 100644
index 1ac209da61..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarNavActivity.java
+++ /dev/null
@@ -1,114 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.annotation.RequiresApi;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarNavActivity extends BaseBackActivity {
-
-    private Random random = new Random();
-
-    private TextView tvAboutNav;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarNavActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_nav;
-    }
-
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        rootLayout.setBackgroundColor(Color.GRAY);
-        getToolBar().setTitle(getString(R.string.demo_bar));
-
-        tvAboutNav = findViewById(R.id.tv_about_nav);
-        findViewById(R.id.btn_nav_show).setOnClickListener(this);
-        findViewById(R.id.btn_nav_hide).setOnClickListener(this);
-        findViewById(R.id.btn_nav_set_color).setOnClickListener(this);
-        updateAboutNav();
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_nav_show:
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-                    BarUtils.setNavBarVisibility(this, true);
-                }
-                break;
-            case R.id.btn_nav_hide:
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-                    BarUtils.setNavBarVisibility(this, false);
-                }
-                break;
-            case R.id.btn_nav_set_color:
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                    BarUtils.setNavBarColor(this, Color.argb(random.nextInt(256), random.nextInt(256), random.nextInt(256), random.nextInt(256)));
-                }
-                break;
-        }
-        updateAboutNav();
-    }
-
-    private void updateAboutNav() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            tvAboutNav.setText(new SpanUtils()
-                    .appendLine("navHeight: " + BarUtils.getNavBarHeight())
-                    .appendLine("isNavBarVisible: " + BarUtils.isNavBarVisible(this))
-                    .appendLine("getNavBarColor: #" + Integer.toHexString(BarUtils.getNavBarColor(this)))
-                    .append("isSupportNavBar: " + BarUtils.isSupportNavBar())
-                    .create()
-            );
-        } else {
-            tvAboutNav.setText(new SpanUtils()
-                    .appendLine("navHeight: " + BarUtils.getNavBarHeight())
-                    .appendLine("isNavBarVisible: " + BarUtils.isNavBarVisible(this))
-                    .append("isSupportNavBar: " + BarUtils.isSupportNavBar())
-                    .create()
-            );
-        }
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
-    @Override
-    public void onWindowFocusChanged(boolean hasFocus) {
-        super.onWindowFocusChanged(hasFocus);
-        BarUtils.setNavBarVisibility(this, BarUtils.isNavBarVisible(this));
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarNotificationActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarNotificationActivity.java
deleted file mode 100644
index 6cfecb221c..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarNotificationActivity.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.Handler;
-import android.support.annotation.Nullable;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.BarUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarNotificationActivity extends BaseBackActivity {
-
-    private Handler mHandler = new Handler();
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarNotificationActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_notification;
-    }
-
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_bar));
-
-        findViewById(R.id.btn_show_notification).setOnClickListener(this);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_show_notification:
-                BarUtils.setNotificationBarVisibility(true);
-                mHandler.postDelayed(new Runnable() {
-                    @Override
-                    public void run() {
-                        BarUtils.setNotificationBarVisibility(false);
-                    }
-                }, 2000);
-                break;
-        }
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        mHandler.removeCallbacksAndMessages(null);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusActivity.java
deleted file mode 100644
index 9b5fd56891..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusActivity.java
+++ /dev/null
@@ -1,85 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusActivity extends BaseBackActivity {
-
-    private TextView tvAboutStatus;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status;
-    }
-
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_bar));
-
-        tvAboutStatus = findViewById(R.id.tv_about_status);
-        findViewById(R.id.btn_show_status).setOnClickListener(this);
-        findViewById(R.id.btn_hide_status).setOnClickListener(this);
-        findViewById(R.id.btn_light_mode).setOnClickListener(this);
-        findViewById(R.id.btn_dark_mode).setOnClickListener(this);
-        updateAboutStatus();
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_show_status:
-                BarUtils.setStatusBarVisibility(this, true);
-                break;
-            case R.id.btn_hide_status:
-                BarUtils.setStatusBarVisibility(this, false);
-                break;
-            case R.id.btn_light_mode:
-                BarUtils.setStatusBarLightMode(this, true);
-                break;
-            case R.id.btn_dark_mode:
-                BarUtils.setStatusBarLightMode(this, false);
-                break;
-        }
-        updateAboutStatus();
-    }
-
-    private void updateAboutStatus() {
-        tvAboutStatus.setText(new SpanUtils()
-                .appendLine("statusHeight: " + BarUtils.getStatusBarHeight())
-                .append("isStatusVisible: " + BarUtils.isStatusBarVisible(this))
-                .create());
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusAlphaActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusAlphaActivity.java
deleted file mode 100644
index 4bf4e3c2b4..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusAlphaActivity.java
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.utilcode.util.BarUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusAlphaActivity extends BaseActivity {
-
-    private int mAlpha;
-
-    private TextView mTvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusAlphaActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status_alpha;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        mTvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-        sbChangeAlpha.setOnSeekBarChangeListener(translucentListener);
-        mTvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateStatusBar();
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener translucentListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            mTvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    private void updateStatusBar() {
-        BarUtils.setStatusBarAlpha(BarStatusAlphaActivity.this, mAlpha);
-        BarUtils.addMarginTopEqualStatusBarHeight(mTvStatusAlpha);// 其实这个只需要调用一次即可
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusAlphaFragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusAlphaFragment.java
deleted file mode 100644
index 3c430c3ffd..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusAlphaFragment.java
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseLazyFragment;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.LogUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/07/01
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusAlphaFragment extends BaseLazyFragment {
-
-    private int mAlpha;
-
-    private TextView mTvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-    private View     fakeStatusBar;
-
-
-    public static BarStatusAlphaFragment newInstance() {
-        return new BarStatusAlphaFragment();
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_bar_status_alpha;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        fakeStatusBar = findViewById(R.id.fake_status_bar);
-        mTvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        sbChangeAlpha.setOnSeekBarChangeListener(translucentListener);
-        mTvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateFakeStatusBar();
-    }
-
-    @Override
-    public void doLazyBusiness() {
-        LogUtils.d("doLazyBusiness() called");
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener translucentListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            mTvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateFakeStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    public void updateFakeStatusBar() {
-        BarUtils.setStatusBarAlpha(fakeStatusBar, mAlpha);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusColorActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusColorActivity.java
deleted file mode 100644
index bd978c2f9a..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusColorActivity.java
+++ /dev/null
@@ -1,108 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
-import android.view.View;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.utilcode.util.BarUtils;
-
-import java.util.Random;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusColorActivity extends BaseActivity {
-
-    private Random mRandom;
-    private int    mColor;
-    private int    mAlpha;
-
-    private TextView mTvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusColorActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mRandom = new Random();
-        mColor = ContextCompat.getColor(UtilsApp.getInstance(), R.color.colorPrimary);
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status_color;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        findViewById(R.id.btn_random_color).setOnClickListener(this);
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        mTvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-        sbChangeAlpha.setOnSeekBarChangeListener(colorListener);
-        mTvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateStatusBar();
-    }
-
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_random_color:
-                mColor = 0xff000000 | mRandom.nextInt(0xffffff);
-                updateStatusBar();
-                break;
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener colorListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            mTvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    private void updateStatusBar() {
-        BarUtils.setStatusBarColor(this, mColor, mAlpha);
-        BarUtils.addMarginTopEqualStatusBarHeight(mTvStatusAlpha);// 其实这个只需要调用一次即可
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusColorFragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusColorFragment.java
deleted file mode 100644
index c0c6a6faf7..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusColorFragment.java
+++ /dev/null
@@ -1,106 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
-import android.view.View;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.androidutilcode.base.BaseLazyFragment;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.LogUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/07/01
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusColorFragment extends BaseLazyFragment {
-
-    private Random mRandom;
-    private int    mColor;
-    private int    mAlpha;
-
-    private TextView mTvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-    private View     fakeStatusBar;
-
-    public static BarStatusColorFragment newInstance() {
-        return new BarStatusColorFragment();
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mRandom = new Random();
-        mColor = ContextCompat.getColor(UtilsApp.getInstance(), R.color.colorPrimary);
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_bar_status_color;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        fakeStatusBar = findViewById(R.id.fake_status_bar);
-        findViewById(R.id.btn_random_color).setOnClickListener(this);
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        mTvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-        sbChangeAlpha.setOnSeekBarChangeListener(colorListener);
-        mTvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateFakeStatusBar();
-    }
-
-
-    @Override
-    public void doLazyBusiness() {
-        LogUtils.d("doLazyBusiness() called");
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_random_color:
-                mColor = 0xff000000 | mRandom.nextInt(0xffffff);
-                updateFakeStatusBar();
-                break;
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener colorListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            mTvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateFakeStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    public void updateFakeStatusBar() {
-        BarUtils.setStatusBarColor(fakeStatusBar, mColor, mAlpha);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusCustomFragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusCustomFragment.java
deleted file mode 100644
index 0d4b58cfc2..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusCustomFragment.java
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseLazyFragment;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.LogUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/07/01
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusCustomFragment extends BaseLazyFragment {
-
-    private View fakeStatusBar;
-
-
-    public static BarStatusCustomFragment newInstance() {
-        return new BarStatusCustomFragment();
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_bar_status_custom;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        BarUtils.setStatusBarCustom(findViewById(R.id.fake_status_bar));
-    }
-
-    @Override
-    public void doLazyBusiness() {
-        LogUtils.d("doLazyBusiness() called");
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusDrawerActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusDrawerActivity.java
deleted file mode 100644
index 5061099277..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusDrawerActivity.java
+++ /dev/null
@@ -1,149 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
-import android.view.View;
-import android.widget.Button;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.androidutilcode.base.BaseDrawerActivity;
-import com.blankj.utilcode.util.BarUtils;
-
-import java.util.Random;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusDrawerActivity extends BaseDrawerActivity {
-
-    private Random mRandom;
-    private int    mColor;
-    private int    mAlpha;
-
-    private View     fakeStatusBar;
-    private CheckBox cbAlpha;
-    private CheckBox cbFront;
-    private TextView tvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-    private Button   btnRandomColor;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusDrawerActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mRandom = new Random();
-        mColor = ContextCompat.getColor(UtilsApp.getInstance(), R.color.colorPrimary);
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status_drawer;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        fakeStatusBar = findViewById(R.id.fake_status_bar);
-        cbAlpha = findViewById(R.id.cb_alpha);
-        cbFront = findViewById(R.id.cb_front);
-        btnRandomColor = findViewById(R.id.btn_random_color);
-        tvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-
-        cbAlpha.setOnCheckedChangeListener(mAlphaCheckedChangeListener);
-        cbFront.setOnCheckedChangeListener(mFrontCheckedChangeListener);
-        btnRandomColor.setOnClickListener(this);
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        sbChangeAlpha.setOnSeekBarChangeListener(mColorListener);
-
-        tvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateStatusBar();
-    }
-
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_random_color:
-                mColor = 0xff000000 | mRandom.nextInt(0xffffff);
-                updateStatusBar();
-                break;
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener mColorListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            tvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    CompoundButton.OnCheckedChangeListener mAlphaCheckedChangeListener = new CompoundButton.OnCheckedChangeListener() {
-        @Override
-        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-            if (isChecked) {
-                btnRandomColor.setVisibility(View.GONE);
-                flActivityContainer.setBackgroundResource(R.drawable.bar_status_alpha_bg);
-            } else {
-                btnRandomColor.setVisibility(View.VISIBLE);
-                flActivityContainer.setBackgroundColor(Color.WHITE);
-            }
-            updateStatusBar();
-        }
-    };
-
-    CompoundButton.OnCheckedChangeListener mFrontCheckedChangeListener = new CompoundButton.OnCheckedChangeListener() {
-        @Override
-        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-            updateStatusBar();
-        }
-    };
-
-    private void updateStatusBar() {
-        if (cbAlpha.isChecked()) {
-            BarUtils.setStatusBarAlpha4Drawer(BarStatusDrawerActivity.this, rootLayout, fakeStatusBar, mAlpha, cbFront.isChecked());
-        } else {
-            BarUtils.setStatusBarColor4Drawer(BarStatusDrawerActivity.this, rootLayout, fakeStatusBar, mColor, mAlpha, cbFront.isChecked());
-        }
-        BarUtils.addMarginTopEqualStatusBarHeight(cbAlpha);// 其实这个只需要调用一次即可
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusFragmentActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusFragmentActivity.java
deleted file mode 100644
index 4d4285697d..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusFragmentActivity.java
+++ /dev/null
@@ -1,136 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.design.widget.BottomNavigationView;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentPagerAdapter;
-import android.support.v4.view.ViewPager;
-import android.view.MenuItem;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseActivity;
-
-import java.util.ArrayList;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusFragmentActivity extends BaseActivity {
-
-    private int[] itemIds = new int[]{
-            R.id.navigation_color,
-            R.id.navigation_alpha,
-            R.id.navigation_image_view,
-            R.id.navigation_custom
-    };
-
-    private ViewPager            mVpStatusBar;
-    private BottomNavigationView navigation;
-    private ArrayList<Fragment>  mFragmentList = new ArrayList<>();
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusFragmentActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public Intent getIntent() {
-        return super.getIntent();
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status_fragment;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        mVpStatusBar = findViewById(R.id.vp_status_bar);
-        navigation = findViewById(R.id.navigation_status_bar);
-
-        mFragmentList.add(BarStatusColorFragment.newInstance());
-        mFragmentList.add(BarStatusAlphaFragment.newInstance());
-        mFragmentList.add(BarStatusImageViewFragment.newInstance());
-        mFragmentList.add(BarStatusCustomFragment.newInstance());
-
-        mVpStatusBar.setOffscreenPageLimit(3);
-        mVpStatusBar.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
-            @Override
-            public Fragment getItem(int position) {
-                return mFragmentList.get(position);
-            }
-
-            @Override
-            public int getCount() {
-                return mFragmentList.size();
-            }
-        });
-
-        mVpStatusBar.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
-            @Override
-            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
-
-            }
-
-            @Override
-            public void onPageSelected(int position) {
-                navigation.setSelectedItemId(itemIds[position]);
-            }
-
-            @Override
-            public void onPageScrollStateChanged(int state) {
-
-            }
-        });
-
-        navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
-            = new BottomNavigationView.OnNavigationItemSelectedListener() {
-
-        @Override
-        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
-            switch (item.getItemId()) {
-                case R.id.navigation_color:
-                    mVpStatusBar.setCurrentItem(0);
-                    return true;
-                case R.id.navigation_alpha:
-                    mVpStatusBar.setCurrentItem(1);
-                    return true;
-                case R.id.navigation_image_view:
-                    mVpStatusBar.setCurrentItem(2);
-                    return true;
-                case R.id.navigation_custom:
-                    mVpStatusBar.setCurrentItem(3);
-                    return true;
-            }
-            return false;
-        }
-    };
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusImageViewActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusImageViewActivity.java
deleted file mode 100644
index d422f2f1e6..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusImageViewActivity.java
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.utilcode.util.BarUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusImageViewActivity extends BaseActivity {
-
-    private int mAlpha;
-
-    private TextView mTvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusImageViewActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status_image_view;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        mTvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-        sbChangeAlpha.setOnSeekBarChangeListener(translucentListener);
-        mTvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateStatusBar();
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener translucentListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            mTvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    private void updateStatusBar() {
-        BarUtils.setStatusBarAlpha(BarStatusImageViewActivity.this, mAlpha, true);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusImageViewFragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusImageViewFragment.java
deleted file mode 100644
index 7f81597156..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusImageViewFragment.java
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseLazyFragment;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.LogUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/07/01
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusImageViewFragment extends BaseLazyFragment {
-
-    private int mAlpha;
-
-    private TextView mTvStatusAlpha;
-    private SeekBar  sbChangeAlpha;
-    private View     fakeStatusBar;
-
-    public static BarStatusImageViewFragment newInstance() {
-        return new BarStatusImageViewFragment();
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_bar_status_image_view;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        fakeStatusBar = findViewById(R.id.fake_status_bar);
-        mTvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        sbChangeAlpha.setOnSeekBarChangeListener(translucentListener);
-        mTvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateFakeStatusBar();
-    }
-
-    @Override
-    public void doLazyBusiness() {
-        LogUtils.d("doLazyBusiness() called");
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener translucentListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            mTvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateFakeStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    public void updateFakeStatusBar() {
-        BarUtils.setStatusBarAlpha(fakeStatusBar, mAlpha);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusSwipeBackActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusSwipeBackActivity.java
deleted file mode 100644
index df95f8f26d..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarStatusSwipeBackActivity.java
+++ /dev/null
@@ -1,144 +0,0 @@
-package com.blankj.androidutilcode.feature.core.bar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
-import android.view.View;
-import android.widget.Button;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.LinearLayout;
-import android.widget.SeekBar;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.utilcode.util.BarUtils;
-import com.r0adkll.slidr.Slidr;
-
-import java.util.Random;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/27
- *     desc  : demo about BarUtils
- * </pre>
- */
-public class BarStatusSwipeBackActivity extends BaseActivity {
-
-    private Random mRandom;
-    private int    mColor;
-    private int    mAlpha;
-
-    private LinearLayout llContainer;
-    private CheckBox     cbAlpha;
-    private TextView     tvStatusAlpha;
-    private SeekBar      sbChangeAlpha;
-    private Button       btnRandomColor;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BarStatusSwipeBackActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-        mRandom = new Random();
-        mColor = ContextCompat.getColor(UtilsApp.getInstance(), R.color.colorPrimary);
-        mAlpha = 112;
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_bar_status_swipe_back;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Slidr.attach(this);
-
-        llContainer = findViewById(R.id.ll_container);
-        cbAlpha = findViewById(R.id.cb_alpha);
-        btnRandomColor = findViewById(R.id.btn_random_color);
-        tvStatusAlpha = findViewById(R.id.tv_status_alpha);
-        sbChangeAlpha = findViewById(R.id.sb_change_alpha);
-
-        cbAlpha.setOnCheckedChangeListener(mCheckedChangeListener);
-        btnRandomColor.setOnClickListener(this);
-        findViewById(R.id.btn_set_transparent).setOnClickListener(this);
-        sbChangeAlpha.setOnSeekBarChangeListener(mColorListener);
-
-        tvStatusAlpha.setText(String.valueOf(mAlpha));
-
-        updateStatusBar();
-    }
-
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_random_color:
-                mColor = 0xff000000 | mRandom.nextInt(0xffffff);
-                updateStatusBar();
-                break;
-            case R.id.btn_set_transparent:
-                sbChangeAlpha.setProgress(0);
-                break;
-        }
-    }
-
-    private SeekBar.OnSeekBarChangeListener mColorListener = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            mAlpha = progress;
-            tvStatusAlpha.setText(String.valueOf(mAlpha));
-            updateStatusBar();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    CompoundButton.OnCheckedChangeListener mCheckedChangeListener = new CompoundButton.OnCheckedChangeListener() {
-        @Override
-        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-            if (isChecked) {
-                btnRandomColor.setVisibility(View.GONE);
-                llContainer.setBackgroundResource(R.drawable.bar_status_alpha_bg);
-            } else {
-                btnRandomColor.setVisibility(View.VISIBLE);
-                llContainer.setBackgroundColor(Color.WHITE);
-            }
-            updateStatusBar();
-        }
-    };
-
-    private void updateStatusBar() {
-        if (cbAlpha.isChecked()) {
-            BarUtils.setStatusBarAlpha(this, mAlpha);
-            BarUtils.addMarginTopEqualStatusBarHeight(cbAlpha);
-        } else {
-            BarUtils.setStatusBarColor(this, mColor, mAlpha);
-            BarUtils.addMarginTopEqualStatusBarHeight(cbAlpha);
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/clean/CleanActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/clean/CleanActivity.java
deleted file mode 100644
index b066801ede..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/clean/CleanActivity.java
+++ /dev/null
@@ -1,109 +0,0 @@
-package com.blankj.androidutilcode.feature.core.clean;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.Environment;
-import android.support.annotation.Nullable;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.CleanUtils;
-import com.blankj.utilcode.util.SnackbarUtils;
-
-import java.io.File;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : demo about CleanUtils
- * </pre>
- */
-public class CleanActivity extends BaseBackActivity {
-
-    private View   snackBarRootView;
-    private String internalCachePath;
-    private String internalFilesPath;
-    private String internalDbs;
-    private String internalSp;
-    private String externalCache;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, CleanActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_clean;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_clean));
-
-        snackBarRootView = findViewById(android.R.id.content);
-        findViewById(R.id.btn_clean_internal_cache).setOnClickListener(this);
-        findViewById(R.id.btn_clean_internal_files).setOnClickListener(this);
-        findViewById(R.id.btn_clean_internal_databases).setOnClickListener(this);
-        findViewById(R.id.btn_clean_internal_sp).setOnClickListener(this);
-        findViewById(R.id.btn_clean_external_cache).setOnClickListener(this);
-
-        internalCachePath = getCacheDir().getPath();
-        internalFilesPath = getFilesDir().getPath();
-        internalDbs = getFilesDir().getParent() + File.separator + "databases";
-        internalSp = getFilesDir().getParent() + File.separator + "shared_prefs";
-
-        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
-            externalCache = getExternalCacheDir().getAbsolutePath();
-        }
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_clean_internal_cache:
-                showSnackbar(CleanUtils.cleanInternalCache(), internalCachePath);
-                break;
-            case R.id.btn_clean_internal_files:
-                showSnackbar(CleanUtils.cleanInternalFiles(), internalFilesPath);
-                break;
-            case R.id.btn_clean_internal_databases:
-                showSnackbar(CleanUtils.cleanInternalDbs(), internalDbs);
-                break;
-            case R.id.btn_clean_internal_sp:
-                showSnackbar(CleanUtils.cleanInternalSp(), internalSp);
-                break;
-            case R.id.btn_clean_external_cache:
-                showSnackbar(CleanUtils.cleanExternalCache(), externalCache);
-                break;
-        }
-    }
-
-    private void showSnackbar(final boolean isSuccess, final String path) {
-        if (isSuccess) {
-            SnackbarUtils.with(snackBarRootView)
-                    .setMessage("clean \"" + path + "\" dir success")
-                    .setDuration(SnackbarUtils.LENGTH_LONG)
-                    .showSuccess();
-        } else {
-            SnackbarUtils.with(snackBarRootView)
-                    .setMessage("clean \"" + path + "\" dir failed")
-                    .setDuration(SnackbarUtils.LENGTH_LONG)
-                    .showError();
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/device/DeviceActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/device/DeviceActivity.java
deleted file mode 100644
index 7525db7bb6..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/device/DeviceActivity.java
+++ /dev/null
@@ -1,102 +0,0 @@
-package com.blankj.androidutilcode.feature.core.device;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.DeviceUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-import java.util.Arrays;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog : http://blankj.com
- *     time : 2016/09/27
- *     desc : demo about DeviceUtils
- * </pre>
- */
-public class DeviceActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, DeviceActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_device;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_device));
-
-        findViewById(R.id.btn_shutdown).setOnClickListener(this);
-        findViewById(R.id.btn_reboot).setOnClickListener(this);
-        findViewById(R.id.btn_reboot_to_recovery).setOnClickListener(this);
-        findViewById(R.id.btn_reboot_to_bootloader).setOnClickListener(this);
-        TextView tvAboutDevice = findViewById(R.id.tv_about_device);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            tvAboutDevice.setText(new SpanUtils()
-                    .appendLine("isRoot: " + DeviceUtils.isDeviceRooted())
-                    .appendLine("isAdbEnabled: " + DeviceUtils.isAdbEnabled())
-                    .appendLine("getSDKVersionName: " + DeviceUtils.getSDKVersionName())
-                    .appendLine("getSDKVersionCode: " + DeviceUtils.getSDKVersionCode())
-                    .appendLine("getAndroidID: " + DeviceUtils.getAndroidID())
-                    .appendLine("getMacAddress: " + DeviceUtils.getMacAddress())
-                    .appendLine("getManufacturer: " + DeviceUtils.getManufacturer())
-                    .appendLine("getModel: " + DeviceUtils.getModel())
-                    .append("getABIs: " + Arrays.asList(DeviceUtils.getABIs()))
-                    .create()
-            );
-        } else {
-            tvAboutDevice.setText(new SpanUtils()
-                    .appendLine("isRoot: " + DeviceUtils.isDeviceRooted())
-                    .appendLine("getSDKVersionName: " + DeviceUtils.getSDKVersionName())
-                    .appendLine("getSDKVersionCode: " + DeviceUtils.getSDKVersionCode())
-                    .appendLine("getAndroidID: " + DeviceUtils.getAndroidID())
-                    .appendLine("getMacAddress: " + DeviceUtils.getMacAddress())
-                    .appendLine("getManufacturer: " + DeviceUtils.getManufacturer())
-                    .appendLine("getModel: " + DeviceUtils.getModel())
-                    .append("getABIs: " + Arrays.asList(DeviceUtils.getABIs()))
-                    .create()
-            );
-        }
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_shutdown:
-                DeviceUtils.shutdown();
-                break;
-            case R.id.btn_reboot:
-                DeviceUtils.reboot();
-                break;
-            case R.id.btn_reboot_to_recovery:
-                DeviceUtils.reboot2Recovery();
-                break;
-            case R.id.btn_reboot_to_bootloader:
-                DeviceUtils.reboot2Bootloader();
-                break;
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/ChildFragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/ChildFragment.java
deleted file mode 100644
index 94b59ef5ac..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/ChildFragment.java
+++ /dev/null
@@ -1,88 +0,0 @@
-package com.blankj.androidutilcode.feature.core.fragment;
-
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseFragment;
-import com.blankj.utilcode.util.FragmentUtils;
-import com.blankj.utilcode.util.LogUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/02
- *     desc  : demo about FragmentUtils
- * </pre>
- */
-public class ChildFragment extends BaseFragment
-        implements FragmentUtils.OnBackClickListener {
-
-    private TextView tvAboutFragment;
-
-    public static ChildFragment newInstance() {
-        Bundle args = new Bundle();
-        ChildFragment fragment = new ChildFragment();
-        fragment.setArguments(args);
-        return fragment;
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_child;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Random random = new Random();
-        FragmentUtils.setBackgroundColor(this, Color.rgb(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
-        findViewById(R.id.btn_show_about_fragment).setOnClickListener(this);
-        findViewById(R.id.btn_pop).setOnClickListener(this);
-        tvAboutFragment = findViewById(R.id.tv_about_fragment);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        tvAboutFragment.setText("");
-        switch (view.getId()) {
-            case R.id.btn_show_about_fragment:
-                tvAboutFragment.setText("top: " + FragmentUtils.getSimpleName(FragmentUtils.getTop(getFragmentManager()))
-                        + "\ntopInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopInStack(getFragmentManager()))
-                        + "\ntopShow: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShow(getFragmentManager()))
-                        + "\ntopShowInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShowInStack(getFragmentManager()))
-                        + "\n---all of fragments---\n"
-                        + FragmentUtils.getAllFragments(getFragmentManager()).toString()
-                        + "\n----------------------\n\n"
-                        + "---stack top---\n"
-                        + FragmentUtils.getAllFragmentsInStack(getFragmentManager()).toString()
-                        + "\n---stack bottom---\n\n"
-                );
-                break;
-//            case R.id.btn_pop:
-//                FragmentUtils.popFragment(getFragmentManager());
-//                break;
-        }
-    }
-
-    @Override
-    public boolean onBackClick() {
-        LogUtils.d("demo2 onBackClick");
-        return false;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/DetailTransition.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/DetailTransition.java
deleted file mode 100644
index 1893362676..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/DetailTransition.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.blankj.androidutilcode.feature.core.fragment;
-
-import android.content.Context;
-import android.os.Build;
-import android.support.annotation.RequiresApi;
-import android.transition.ChangeBounds;
-import android.transition.ChangeImageTransform;
-import android.transition.ChangeTransform;
-import android.transition.TransitionSet;
-import android.util.AttributeSet;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/21
- *     desc  : demo about FragmentUtils
- * </pre>
- */
-@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-public class DetailTransition extends TransitionSet {
-    public DetailTransition() {
-        init();
-    }
-
-    // 允许资源文件使用
-    public DetailTransition(Context context, AttributeSet attrs) {
-        super(context, attrs);
-        init();
-    }
-
-    private void init() {
-        setOrdering(ORDERING_TOGETHER);
-        addTransition(new ChangeBounds()).
-                addTransition(new ChangeTransform()).
-                addTransition(new ChangeImageTransform());
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/FragmentActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/FragmentActivity.java
deleted file mode 100644
index ec1c1a0349..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/FragmentActivity.java
+++ /dev/null
@@ -1,115 +0,0 @@
-package com.blankj.androidutilcode.feature.core.fragment;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.PersistableBundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.design.widget.BottomNavigationView;
-import android.support.v4.app.Fragment;
-import android.view.MenuItem;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.utilcode.util.FragmentUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/01
- *     desc  : demo about FragmentUtils
- * </pre>
- */
-public class FragmentActivity extends BaseActivity {
-
-    private int[] itemIds = new int[]{
-            R.id.navigation_fragment_zero,
-            R.id.navigation_fragment_one,
-            R.id.navigation_fragment_two
-    };
-
-    private BottomNavigationView navigation;
-    private Fragment[]           mFragments = new Fragment[3];
-    private int                  curIndex;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, FragmentActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_fragment;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        if (savedInstanceState != null) {
-            curIndex = savedInstanceState.getInt("curIndex");
-        }
-
-        navigation = findViewById(R.id.navigation_fragment);
-        navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
-
-        mFragments[0] = Root0Fragment.newInstance();
-        mFragments[1] = Root1Fragment.newInstance();
-        mFragments[2] = Root2Fragment.newInstance();
-        FragmentUtils.add(getSupportFragmentManager(), mFragments, R.id.fragment_container, curIndex);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-
-//    @Override
-//    public void onBackPressed() {
-//        if (!FragmentUtils.dispatchBackPress(getSupportFragmentManager())) {
-//            super.onBackPressed();
-//        }
-//    }
-
-    private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
-            = new BottomNavigationView.OnNavigationItemSelectedListener() {
-
-        @Override
-        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
-            switch (item.getItemId()) {
-                case R.id.navigation_fragment_zero:
-                    showCurrentFragment(0);
-                    return true;
-                case R.id.navigation_fragment_one:
-                    showCurrentFragment(1);
-                    return true;
-                case R.id.navigation_fragment_two:
-                    showCurrentFragment(2);
-                    return true;
-            }
-            return false;
-        }
-    };
-
-    private void showCurrentFragment(int index) {
-        FragmentUtils.showHide(curIndex = index, mFragments);
-    }
-
-    @Override
-    public void onSaveInstanceState(Bundle outState, PersistableBundle outPersistentState) {
-        super.onSaveInstanceState(outState, outPersistentState);
-        outState.putInt("curIndex", curIndex);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root0Fragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root0Fragment.java
deleted file mode 100644
index a7048f6379..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root0Fragment.java
+++ /dev/null
@@ -1,166 +0,0 @@
-package com.blankj.androidutilcode.feature.core.fragment;
-
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.transition.Fade;
-import android.view.View;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseFragment;
-import com.blankj.utilcode.util.FragmentUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/02
- *     desc  : demo about FragmentUtils
- * </pre>
- */
-public class Root0Fragment extends BaseFragment
-        implements FragmentUtils.OnBackClickListener {
-
-    ImageView ivSharedElement;
-    TextView  tvAboutFragment;
-
-    public static Root0Fragment newInstance() {
-        Bundle args = new Bundle();
-        Root0Fragment fragment = new Root0Fragment();
-        fragment.setArguments(args);
-        return fragment;
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_root;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Random random = new Random();
-        FragmentUtils.setBackgroundColor(this, Color.rgb(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
-        findViewById(R.id.btn_show_about_fragment).setOnClickListener(this);
-        findViewById(R.id.btn_add).setOnClickListener(this);
-        findViewById(R.id.btn_add_hide).setOnClickListener(this);
-        findViewById(R.id.btn_add_hide_stack).setOnClickListener(this);
-        findViewById(R.id.btn_add).setOnClickListener(this);
-        findViewById(R.id.btn_add_show).setOnClickListener(this);
-        findViewById(R.id.btn_add_child).setOnClickListener(this);
-        findViewById(R.id.btn_pop_to_root).setOnClickListener(this);
-        findViewById(R.id.btn_pop_add).setOnClickListener(this);
-        findViewById(R.id.btn_hide_show).setOnClickListener(this);
-        findViewById(R.id.btn_replace).setOnClickListener(this);
-        ivSharedElement = findViewById(R.id.iv_shared_element);
-        tvAboutFragment = findViewById(R.id.tv_about_fragment);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        tvAboutFragment.setText("");
-        switch (view.getId()) {
-            case R.id.btn_show_about_fragment:
-                tvAboutFragment.setText("top: " + FragmentUtils.getSimpleName(FragmentUtils.getTop(getFragmentManager()))
-                        + "\ntopInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopInStack(getFragmentManager()))
-                        + "\ntopShow: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShow(getFragmentManager()))
-                        + "\ntopShowInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShowInStack(getFragmentManager()))
-                        + "\n---all of fragments---\n"
-                        + FragmentUtils.getAllFragments(getFragmentManager()).toString()
-                        + "\n----------------------\n\n"
-                        + "---stack top---\n"
-                        + FragmentUtils.getAllFragmentsInStack(getFragmentManager()).toString()
-                        + "\n---stack bottom---\n\n"
-                );
-                break;
-            case R.id.btn_add:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.child_fragment_container,
-                        false,
-                        true);
-                break;
-            case R.id.btn_add_hide:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container,
-                        true);
-                break;
-            case R.id.btn_add_hide_stack:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container,
-                        true,
-                        true);
-                break;
-//            case R.id.btn_add_show:
-//                FragmentUtils.add(getFragmentManager(),
-//                        addSharedElement(Demo1Fragment.newInstance()),
-//                        R.id.fragment_container,
-//                        false,
-//                        false,
-//                        sharedElement);
-//                break;
-//            case R.id.btn_add_child:
-//                FragmentUtils.add(getChildFragmentManager(),
-//                        ChildFragment.newInstance(),
-//                        R.id.child_fragment_container,
-//                        false,
-//                        true);
-//                break;
-//            case R.id.btn_pop_to_root:
-//                FragmentUtils.popToFragment(getFragmentManager(),
-//                        Demo1Fragment.class,
-//                        true);
-//                break;
-//            case R.id.btn_pop_add:
-//                FragmentUtils.popAddFragment(getFragmentManager(),
-//                        addSharedElement(ChildFragment.newInstance()),
-//                        R.id.fragment_container,
-//                        true,
-//                        sharedElement);
-//                break;
-//            case R.id.btn_hide_show:
-//                Fragment fragment1 = FragmentUtils.findFragment(getFragmentManager(), Demo1Fragment.class);
-//                if (fragment1 != null) {
-//                    FragmentUtils.showHideFragment(this, fragment1);
-//                } else {
-//                    ToastUtils.showLong("please add demo1 first!");
-//                }
-//                break;
-//            case R.id.btn_replace:
-//                ((FragmentActivity) getActivity()).rootFragment = FragmentUtils.replaceFragment(this, addSharedElement(Demo3Fragment.newInstance()), false, sharedElement);
-//                break;
-        }
-    }
-
-    private Fragment addSharedElement(Fragment fragment) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            fragment.setSharedElementEnterTransition(new DetailTransition());
-            fragment.setEnterTransition(new Fade());
-            fragment.setSharedElementReturnTransition(new DetailTransition());
-        }
-        return fragment;
-    }
-
-    @Override
-    public boolean onBackClick() {
-//        FragmentUtils.popToFragment(getFragmentManager(), Demo1Fragment.class, true);
-        return false;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root1Fragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root1Fragment.java
deleted file mode 100644
index cce86072d2..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root1Fragment.java
+++ /dev/null
@@ -1,164 +0,0 @@
-package com.blankj.androidutilcode.feature.core.fragment;
-
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.transition.Fade;
-import android.view.View;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseFragment;
-import com.blankj.utilcode.util.FragmentUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/02
- *     desc  : demo about FragmentUtils
- * </pre>
- */
-public class Root1Fragment extends BaseFragment
-        implements FragmentUtils.OnBackClickListener {
-
-    ImageView ivSharedElement;
-    TextView  tvAboutFragment;
-
-    public static Root1Fragment newInstance() {
-        Bundle args = new Bundle();
-        Root1Fragment fragment = new Root1Fragment();
-        fragment.setArguments(args);
-        return fragment;
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_root;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Random random = new Random();
-        FragmentUtils.setBackgroundColor(this, Color.rgb(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
-        findViewById(R.id.btn_show_about_fragment).setOnClickListener(this);
-        findViewById(R.id.btn_add).setOnClickListener(this);
-        findViewById(R.id.btn_add_hide).setOnClickListener(this);
-        findViewById(R.id.btn_add_hide_stack).setOnClickListener(this);
-        findViewById(R.id.btn_add).setOnClickListener(this);
-        findViewById(R.id.btn_add_show).setOnClickListener(this);
-        findViewById(R.id.btn_add_child).setOnClickListener(this);
-        findViewById(R.id.btn_pop_to_root).setOnClickListener(this);
-        findViewById(R.id.btn_pop_add).setOnClickListener(this);
-        findViewById(R.id.btn_hide_show).setOnClickListener(this);
-        findViewById(R.id.btn_replace).setOnClickListener(this);
-        ivSharedElement = findViewById(R.id.iv_shared_element);
-        tvAboutFragment = findViewById(R.id.tv_about_fragment);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        tvAboutFragment.setText("");
-        switch (view.getId()) {
-            case R.id.btn_show_about_fragment:
-                tvAboutFragment.setText("top: " + FragmentUtils.getSimpleName(FragmentUtils.getTop(getFragmentManager()))
-                        + "\ntopInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopInStack(getFragmentManager()))
-                        + "\ntopShow: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShow(getFragmentManager()))
-                        + "\ntopShowInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShowInStack(getFragmentManager()))
-                        + "\n---all of fragments---\n"
-                        + FragmentUtils.getAllFragments(getFragmentManager()).toString()
-                        + "\n----------------------\n\n"
-                        + "---stack top---\n"
-                        + FragmentUtils.getAllFragmentsInStack(getFragmentManager()).toString()
-                        + "\n---stack bottom---\n\n"
-                );
-                break;
-            case R.id.btn_add:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container);
-                break;
-            case R.id.btn_add_hide:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container,
-                        true);
-                break;
-            case R.id.btn_add_hide_stack:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container,
-                        true,
-                        true);
-                break;
-//            case R.id.btn_add_show:
-//                FragmentUtils.add(getFragmentManager(),
-//                        addSharedElement(Demo1Fragment.newInstance()),
-//                        R.id.fragment_container,
-//                        false,
-//                        false,
-//                        sharedElement);
-//                break;
-//            case R.id.btn_add_child:
-//                FragmentUtils.add(getChildFragmentManager(),
-//                        ChildFragment.newInstance(),
-//                        R.id.child_fragment_container,
-//                        false,
-//                        true);
-//                break;
-//            case R.id.btn_pop_to_root:
-//                FragmentUtils.popToFragment(getFragmentManager(),
-//                        Demo1Fragment.class,
-//                        true);
-//                break;
-//            case R.id.btn_pop_add:
-//                FragmentUtils.popAddFragment(getFragmentManager(),
-//                        addSharedElement(ChildFragment.newInstance()),
-//                        R.id.fragment_container,
-//                        true,
-//                        sharedElement);
-//                break;
-//            case R.id.btn_hide_show:
-//                Fragment fragment1 = FragmentUtils.findFragment(getFragmentManager(), Demo1Fragment.class);
-//                if (fragment1 != null) {
-//                    FragmentUtils.showHideFragment(this, fragment1);
-//                } else {
-//                    ToastUtils.showLong("please add demo1 first!");
-//                }
-//                break;
-//            case R.id.btn_replace:
-//                ((FragmentActivity) getActivity()).rootFragment = FragmentUtils.replaceFragment(this, addSharedElement(Demo3Fragment.newInstance()), false, sharedElement);
-//                break;
-        }
-    }
-
-    private Fragment addSharedElement(Fragment fragment) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            fragment.setSharedElementEnterTransition(new DetailTransition());
-            fragment.setEnterTransition(new Fade());
-            fragment.setSharedElementReturnTransition(new DetailTransition());
-        }
-        return fragment;
-    }
-
-    @Override
-    public boolean onBackClick() {
-//        FragmentUtils.popToFragment(getFragmentManager(), Demo1Fragment.class, true);
-        return false;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root2Fragment.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root2Fragment.java
deleted file mode 100644
index 2a6bc6c3d5..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/Root2Fragment.java
+++ /dev/null
@@ -1,164 +0,0 @@
-package com.blankj.androidutilcode.feature.core.fragment;
-
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.transition.Fade;
-import android.view.View;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseFragment;
-import com.blankj.utilcode.util.FragmentUtils;
-
-import java.util.Random;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/02
- *     desc  : demo about FragmentUtils
- * </pre>
- */
-public class Root2Fragment extends BaseFragment
-        implements FragmentUtils.OnBackClickListener {
-
-    ImageView ivSharedElement;
-    TextView  tvAboutFragment;
-
-    public static Root2Fragment newInstance() {
-        Bundle args = new Bundle();
-        Root2Fragment fragment = new Root2Fragment();
-        fragment.setArguments(args);
-        return fragment;
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.fragment_root;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Random random = new Random();
-        FragmentUtils.setBackgroundColor(this, Color.rgb(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
-        findViewById(R.id.btn_show_about_fragment).setOnClickListener(this);
-        findViewById(R.id.btn_add).setOnClickListener(this);
-        findViewById(R.id.btn_add_hide).setOnClickListener(this);
-        findViewById(R.id.btn_add_hide_stack).setOnClickListener(this);
-        findViewById(R.id.btn_add).setOnClickListener(this);
-        findViewById(R.id.btn_add_show).setOnClickListener(this);
-        findViewById(R.id.btn_add_child).setOnClickListener(this);
-        findViewById(R.id.btn_pop_to_root).setOnClickListener(this);
-        findViewById(R.id.btn_pop_add).setOnClickListener(this);
-        findViewById(R.id.btn_hide_show).setOnClickListener(this);
-        findViewById(R.id.btn_replace).setOnClickListener(this);
-        ivSharedElement = findViewById(R.id.iv_shared_element);
-        tvAboutFragment = findViewById(R.id.tv_about_fragment);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        tvAboutFragment.setText("");
-        switch (view.getId()) {
-            case R.id.btn_show_about_fragment:
-                tvAboutFragment.setText("top: " + FragmentUtils.getSimpleName(FragmentUtils.getTop(getFragmentManager()))
-                        + "\ntopInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopInStack(getFragmentManager()))
-                        + "\ntopShow: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShow(getFragmentManager()))
-                        + "\ntopShowInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShowInStack(getFragmentManager()))
-                        + "\n---all of fragments---\n"
-                        + FragmentUtils.getAllFragments(getFragmentManager()).toString()
-                        + "\n----------------------\n\n"
-                        + "---stack top---\n"
-                        + FragmentUtils.getAllFragmentsInStack(getFragmentManager()).toString()
-                        + "\n---stack bottom---\n\n"
-                );
-                break;
-            case R.id.btn_add:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container);
-                break;
-            case R.id.btn_add_hide:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container,
-                        true);
-                break;
-            case R.id.btn_add_hide_stack:
-                FragmentUtils.add(getFragmentManager(),
-                        ChildFragment.newInstance(),
-                        R.id.fragment_container,
-                        true,
-                        true);
-                break;
-//            case R.id.btn_add_show:
-//                FragmentUtils.add(getFragmentManager(),
-//                        addSharedElement(Demo1Fragment.newInstance()),
-//                        R.id.fragment_container,
-//                        false,
-//                        false,
-//                        sharedElement);
-//                break;
-//            case R.id.btn_add_child:
-//                FragmentUtils.add(getChildFragmentManager(),
-//                        ChildFragment.newInstance(),
-//                        R.id.child_fragment_container,
-//                        false,
-//                        true);
-//                break;
-//            case R.id.btn_pop_to_root:
-//                FragmentUtils.popToFragment(getFragmentManager(),
-//                        Demo1Fragment.class,
-//                        true);
-//                break;
-//            case R.id.btn_pop_add:
-//                FragmentUtils.popAddFragment(getFragmentManager(),
-//                        addSharedElement(ChildFragment.newInstance()),
-//                        R.id.fragment_container,
-//                        true,
-//                        sharedElement);
-//                break;
-//            case R.id.btn_hide_show:
-//                Fragment fragment1 = FragmentUtils.findFragment(getFragmentManager(), Demo1Fragment.class);
-//                if (fragment1 != null) {
-//                    FragmentUtils.showHideFragment(this, fragment1);
-//                } else {
-//                    ToastUtils.showLong("please add demo1 first!");
-//                }
-//                break;
-//            case R.id.btn_replace:
-//                ((FragmentActivity) getActivity()).rootFragment = FragmentUtils.replaceFragment(this, addSharedElement(Demo3Fragment.newInstance()), false, sharedElement);
-//                break;
-        }
-    }
-
-    private Fragment addSharedElement(Fragment fragment) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            fragment.setSharedElementEnterTransition(new DetailTransition());
-            fragment.setEnterTransition(new Fade());
-            fragment.setSharedElementReturnTransition(new DetailTransition());
-        }
-        return fragment;
-    }
-
-    @Override
-    public boolean onBackClick() {
-//        FragmentUtils.popToFragment(getFragmentManager(), Demo1Fragment.class, true);
-        return false;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageActivity.java
deleted file mode 100644
index acb8e8a251..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageActivity.java
+++ /dev/null
@@ -1,109 +0,0 @@
-package com.blankj.androidutilcode.feature.core.image;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import android.view.View;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.utilcode.util.ImageUtils;
-import com.blankj.utilcode.util.ToastUtils;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/26
- *     desc  : demo about ImageUtils
- * </pre>
- */
-public class ImageActivity extends BaseActivity {
-
-    Bitmap          src;
-    List<ImageBean> mList = new ArrayList<>();
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, ImageActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_image;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-//        getToolBar().setTitle(getString(R.string.demo_image));
-
-        RecyclerView rvImages = findViewById(R.id.rv_images);
-        findViewById(R.id.btn_save).setOnClickListener(this);
-
-        src = ImageUtils.getBitmap(R.drawable.image_lena);
-        Bitmap round = ImageUtils.getBitmap(R.drawable.main_avatar_round);
-        Bitmap watermark = ImageUtils.getBitmap(R.mipmap.ic_launcher);
-
-        int width = src.getWidth();
-        int height = src.getHeight();
-
-        mList.add(new ImageBean(R.string.image_src, src));
-        mList.add(new ImageBean(R.string.image_add_color, ImageUtils.drawColor(src, Color.parseColor("#8000FF00"))));
-        mList.add(new ImageBean(R.string.image_scale, ImageUtils.scale(src, width / 2, height / 2)));
-        mList.add(new ImageBean(R.string.image_clip, ImageUtils.clip(src, 0, 0, width / 2, height / 2)));
-        mList.add(new ImageBean(R.string.image_skew, ImageUtils.skew(src, 0.2f, 0.1f)));
-        mList.add(new ImageBean(R.string.image_rotate, ImageUtils.rotate(src, 90, width / 2, height / 2)));
-        mList.add(new ImageBean(R.string.image_to_round, ImageUtils.toRound(src)));
-        mList.add(new ImageBean(R.string.image_to_round_border, ImageUtils.toRound(src, 16, Color.GREEN)));
-        mList.add(new ImageBean(R.string.image_to_round_corner, ImageUtils.toRoundCorner(src, 80)));
-        mList.add(new ImageBean(R.string.image_to_round_corner_border, ImageUtils.toRoundCorner(src, 80, 16, Color.GREEN)));
-        mList.add(new ImageBean(R.string.image_add_corner_border, ImageUtils.addCornerBorder(src, 16, Color.GREEN, 0)));
-        mList.add(new ImageBean(R.string.image_add_circle_border, ImageUtils.addCircleBorder(round, 16, Color.GREEN)));
-        mList.add(new ImageBean(R.string.image_add_reflection, ImageUtils.addReflection(src, 80)));
-        mList.add(new ImageBean(R.string.image_add_text_watermark, ImageUtils.addTextWatermark(src, "blankj", 40, Color.GREEN, 0, 0)));
-        mList.add(new ImageBean(R.string.image_add_image_watermark, ImageUtils.addImageWatermark(src, watermark, 0, 0, 0x88)));
-        mList.add(new ImageBean(R.string.image_to_gray, ImageUtils.toGray(src)));
-        mList.add(new ImageBean(R.string.image_fast_blur, ImageUtils.fastBlur(src, 0.1f, 5)));
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            mList.add(new ImageBean(R.string.image_render_script_blur, ImageUtils.renderScriptBlur(src, 10)));
-        }
-        mList.add(new ImageBean(R.string.image_stack_blur, ImageUtils.stackBlur(src, 10)));
-        mList.add(new ImageBean(R.string.image_compress_by_scale, ImageUtils.compressByScale(src, 0.5f, 0.5f)));
-        mList.add(new ImageBean(R.string.image_compress_by_quality_half, ImageUtils.compressByQuality(src, 50)));
-        mList.add(new ImageBean(R.string.image_compress_by_quality_max_size, ImageUtils.compressByQuality(src, 10L * 1024)));// 10Kb
-        mList.add(new ImageBean(R.string.image_compress_by_sample_size, ImageUtils.compressBySampleSize(src, 2)));
-
-        rvImages.setAdapter(new ImageAdapter(mList, R.layout.item_image1));
-        rvImages.setLayoutManager(new LinearLayoutManager(this));
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_save:
-                boolean save = ImageUtils.save(src, Config.CACHE_PATH + "lena.jpg", Bitmap.CompressFormat.JPEG);
-                ToastUtils.showLong(save ? "successful" : "failed");
-                break;
-        }
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageAdapter.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageAdapter.java
deleted file mode 100644
index bad73d299a..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageAdapter.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.blankj.androidutilcode.feature.core.image;
-
-import android.support.annotation.LayoutRes;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.rv.BaseViewHolder;
-import com.blankj.androidutilcode.base.rv.adapter.SingleAdapter;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/09/18
- *     desc  : demo about ImageUtils
- * </pre>
- */
-public class ImageAdapter extends SingleAdapter<ImageBean> {
-
-    public ImageAdapter(List<ImageBean> list, @LayoutRes int layoutId) {
-        super(list, layoutId);
-    }
-
-    @Override
-    protected void bind(BaseViewHolder holder, ImageBean data) {
-        TextView textView = holder.getView(R.id.tv_image_name);
-        textView.setText(data.getName());
-        ImageView image = holder.getView(R.id.iv_image);
-        image.setImageBitmap(data.getImage());
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageBean.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageBean.java
deleted file mode 100644
index bc7e8bb6b0..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageBean.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.blankj.androidutilcode.feature.core.image;
-
-import android.graphics.Bitmap;
-import android.support.annotation.StringRes;
-
-import com.blankj.utilcode.util.Utils;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/09/18
- *     desc  : demo about ImageUtils
- * </pre>
- */
-public class ImageBean {
-
-    int    resId;
-    String name;
-    Bitmap image;
-
-    public ImageBean(@StringRes int resId, Bitmap image) {
-        name = Utils.getApp().getString(resId);
-        this.image = image;
-    }
-
-    public ImageBean(String name, Bitmap image) {
-        this.name = name;
-        this.image = image;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public Bitmap getImage() {
-        return image;
-    }
-
-    public void setImage(Bitmap image) {
-        this.image = image;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/keyboard/KeyboardActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/keyboard/KeyboardActivity.java
deleted file mode 100644
index c255c1c7be..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/keyboard/KeyboardActivity.java
+++ /dev/null
@@ -1,128 +0,0 @@
-package com.blankj.androidutilcode.feature.core.keyboard;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v7.app.AlertDialog;
-import android.view.View;
-import android.widget.EditText;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.helper.DialogHelper;
-import com.blankj.utilcode.util.KeyboardUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about KeyboardUtils
- * </pre>
- */
-public class KeyboardActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, KeyboardActivity.class);
-        context.startActivity(starter);
-    }
-
-    TextView tvAboutKeyboard;
-    EditText etInput;
-    private AlertDialog dialog;
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_keyboard;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        KeyboardUtils.fixAndroidBug5497(this);
-        etInput = findViewById(R.id.et_input);
-        findViewById(R.id.btn_hide_soft_input).setOnClickListener(this);
-        findViewById(R.id.btn_show_soft_input).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_soft_input).setOnClickListener(this);
-        findViewById(R.id.btn_keyboard_in_fragment).setOnClickListener(this);
-        tvAboutKeyboard = findViewById(R.id.tv_about_keyboard);
-
-        KeyboardUtils.registerSoftInputChangedListener(this,
-                new KeyboardUtils.OnSoftInputChangedListener() {
-                    @Override
-                    public void onSoftInputChanged(int height) {
-                        tvAboutKeyboard.setText(new SpanUtils()
-                                .appendLine("isSoftInputVisible: " + KeyboardUtils.isSoftInputVisible(KeyboardActivity.this))
-                                .append("height: " + height)
-                                .create()
-                        );
-                    }
-                });
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_hide_soft_input:
-                KeyboardUtils.hideSoftInput(this);
-                break;
-            case R.id.btn_show_soft_input:
-                KeyboardUtils.showSoftInput(this);
-                break;
-            case R.id.btn_toggle_soft_input:
-                KeyboardUtils.toggleSoftInput();
-                break;
-            case R.id.btn_keyboard_in_fragment:
-                DialogHelper.showKeyboardDialog();
-                KeyboardUtils.showSoftInput(this);
-                break;
-        }
-    }
-
-//    @Override
-//    public boolean dispatchTouchEvent(MotionEvent ev) {
-//        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-//            View v = getCurrentFocus();
-//            if (isShouldHideKeyboard(v, ev)) {
-//                InputMethodManager imm =
-//                        (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-//                if (imm == null) return super.dispatchTouchEvent(ev);
-//                imm.hideSoftInputFromWindow(v.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
-//            }
-//        }
-//        return super.dispatchTouchEvent(ev);
-//    }
-//
-//    // 根据 EditText 所在坐标和用户点击的坐标相对比，来判断是否隐藏键盘
-//    private boolean isShouldHideKeyboard(View v, MotionEvent event) {
-//        if (v != null && (v instanceof EditText)) {
-//            int[] l = {0, 0};
-//            v.getLocationInWindow(l);
-//            int left = l[0],
-//                    top = l[1],
-//                    bottom = top + v.getHeight(),
-//                    right = left + v.getWidth();
-//            return !(event.getX() > left && event.getX() < right
-//                    && event.getY() > top && event.getY() < bottom);
-//        }
-//        return false;
-//    }
-
-    @Override
-    protected void onDestroy() {
-        KeyboardUtils.unregisterSoftInputChangedListener(this);
-        super.onDestroy();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/log/LogActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/log/LogActivity.java
deleted file mode 100644
index fde5051c7b..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/log/LogActivity.java
+++ /dev/null
@@ -1,352 +0,0 @@
-package com.blankj.androidutilcode.feature.core.log;
-
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Environment;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.LogUtils;
-
-import java.util.ArrayList;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/03/22
- *     desc  : demo about LogUtils
- * </pre>
- */
-public class LogActivity extends BaseBackActivity {
-
-    private static final String TAG                   = "CMJ";
-    private static final int    UPDATE_LOG            = 0x01;
-    private static final int    UPDATE_CONSOLE        = 0x01 << 1;
-    private static final int    UPDATE_TAG            = 0x01 << 2;
-    private static final int    UPDATE_HEAD           = 0x01 << 3;
-    private static final int    UPDATE_FILE           = 0x01 << 4;
-    private static final int    UPDATE_DIR            = 0x01 << 5;
-    private static final int    UPDATE_BORDER         = 0x01 << 6;
-    private static final int    UPDATE_SINGLE         = 0x01 << 7;
-    private static final int    UPDATE_CONSOLE_FILTER = 0x01 << 8;
-    private static final int    UPDATE_FILE_FILTER    = 0x01 << 9;
-
-    private static final String            JSON        = "{\"tools\": [{ \"name\":\"css format\" , \"site\":\"http://tools.w3cschool.cn/code/css\" },{ \"name\":\"JSON format\" , \"site\":\"http://tools.w3cschool.cn/code/JSON\" },{ \"name\":\"pwd check\" , \"site\":\"http://tools.w3cschool.cn/password/my_password_safe\" }]}";
-    private static final String            XML         = "<books><book><author>Jack Herrington</author><title>PHP Hacks</title><publisher>O'Reilly</publisher></book><book><author>Jack Herrington</author><title>Podcasting Hacks</title><publisher>O'Reilly</publisher></book></books>";
-    private static final int[]             ONE_D_ARRAY = new int[]{1, 2, 3};
-    private static final int[][]           TWO_D_ARRAY = new int[][]{{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
-    private static final Throwable         THROWABLE   = new NullPointerException();
-    private static final Bundle            BUNDLE      = new Bundle();
-    private static final Intent            INTENT      = new Intent();
-    private static final ArrayList<String> LIST        = new ArrayList<>();
-
-    private static final String LONG_STR;
-
-    static {
-        StringBuilder sb = new StringBuilder();
-        sb.append("len = 10400\ncontent = \"");
-        for (int i = 0; i < 800; ++i) {
-            sb.append("Hello world. ");
-        }
-        sb.append("\"");
-        LONG_STR = sb.toString();
-
-        BUNDLE.putByte("byte", (byte) -1);
-        BUNDLE.putChar("char", 'c');
-        BUNDLE.putCharArray("charArray", new char[]{'c', 'h', 'a', 'r', 'A', 'r', 'r', 'a', 'y'});
-        BUNDLE.putCharSequence("charSequence", "charSequence");
-        BUNDLE.putCharSequenceArray("charSequenceArray", new CharSequence[]{"char", "Sequence", "Array"});
-        BUNDLE.putBundle("bundle", BUNDLE);
-        BUNDLE.putBoolean("boolean", true);
-        BUNDLE.putInt("int", 1);
-        BUNDLE.putFloat("float", 1.f);
-        BUNDLE.putLong("long", 1L);
-        BUNDLE.putShort("short", (short) 1);
-
-        INTENT.setAction("LogUtils action");
-        INTENT.addCategory("LogUtils category");
-        INTENT.setData(Uri.parse(Config.BLOG));
-        INTENT.setType(Intent.ACTION_DIAL);
-        INTENT.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        INTENT.setPackage(Config.PKG);
-        INTENT.setComponent(new ComponentName(Config.PKG, LogActivity.class.toString()));
-        INTENT.putExtra("int", 1);
-        INTENT.putExtra("float", 1f);
-        INTENT.putExtra("char", 'c');
-        INTENT.putExtra("string", "string");
-        INTENT.putExtra("intArray", ONE_D_ARRAY);
-        ArrayList<String> list = new ArrayList<>();
-        list.add("ArrayList");
-        list.add("is");
-        list.add("serializable");
-        INTENT.putExtra("serializable", list);
-        INTENT.putExtra("bundle", BUNDLE);
-
-        LIST.add("hello");
-        LIST.add("log");
-        LIST.add("utils");
-    }
-
-    private TextView tvAboutLog;
-
-    private LogUtils.Config mConfig = LogUtils.getConfig();
-
-    private String  dir           = "";
-    private String  globalTag     = "";
-    private boolean log           = true;
-    private boolean console       = true;
-    private boolean head          = true;
-    private boolean file          = false;
-    private boolean border        = true;
-    private boolean single        = true;
-    private int     consoleFilter = LogUtils.V;
-    private int     fileFilter    = LogUtils.V;
-
-
-    private Runnable mRunnable = new Runnable() {
-        @Override
-        public void run() {
-            LogUtils.v("verbose");
-            LogUtils.d("debug");
-            LogUtils.i("info");
-            LogUtils.w("warn");
-            LogUtils.e("error");
-            LogUtils.a("assert");
-        }
-    };
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, LogActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_log;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_log));
-
-        tvAboutLog = findViewById(R.id.tv_about_log);
-        findViewById(R.id.btn_toggle_log).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_console).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_tag).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_head).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_border).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_single).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_file).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_dir).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_conole_filter).setOnClickListener(this);
-        findViewById(R.id.btn_toggle_file_filter).setOnClickListener(this);
-        findViewById(R.id.btn_log_no_tag).setOnClickListener(this);
-        findViewById(R.id.btn_log_with_tag).setOnClickListener(this);
-        findViewById(R.id.btn_log_in_new_thread).setOnClickListener(this);
-        findViewById(R.id.btn_log_null).setOnClickListener(this);
-        findViewById(R.id.btn_log_many_params).setOnClickListener(this);
-        findViewById(R.id.btn_log_long).setOnClickListener(this);
-        findViewById(R.id.btn_log_file).setOnClickListener(this);
-        findViewById(R.id.btn_log_json).setOnClickListener(this);
-        findViewById(R.id.btn_log_xml).setOnClickListener(this);
-        findViewById(R.id.btn_log_array).setOnClickListener(this);
-        findViewById(R.id.btn_log_throwable).setOnClickListener(this);
-        findViewById(R.id.btn_log_bundle).setOnClickListener(this);
-        findViewById(R.id.btn_log_intent).setOnClickListener(this);
-        findViewById(R.id.btn_log_array_list).setOnClickListener(this);
-        updateConfig(0);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_toggle_log:
-                updateConfig(UPDATE_LOG);
-                break;
-            case R.id.btn_toggle_console:
-                updateConfig(UPDATE_CONSOLE);
-                break;
-            case R.id.btn_toggle_tag:
-                updateConfig(UPDATE_TAG);
-                break;
-            case R.id.btn_toggle_head:
-                updateConfig(UPDATE_HEAD);
-                break;
-            case R.id.btn_toggle_file:
-                updateConfig(UPDATE_FILE);
-                break;
-            case R.id.btn_toggle_dir:
-                updateConfig(UPDATE_DIR);
-                break;
-            case R.id.btn_toggle_border:
-                updateConfig(UPDATE_BORDER);
-                break;
-            case R.id.btn_toggle_single:
-                updateConfig(UPDATE_SINGLE);
-                break;
-            case R.id.btn_toggle_conole_filter:
-                updateConfig(UPDATE_CONSOLE_FILTER);
-                break;
-            case R.id.btn_toggle_file_filter:
-                updateConfig(UPDATE_FILE_FILTER);
-                break;
-            case R.id.btn_log_no_tag:
-                LogUtils.v("verbose");
-                LogUtils.d("debug");
-                LogUtils.i("info");
-                LogUtils.w("warn");
-                LogUtils.e("error");
-                LogUtils.a("assert");
-                break;
-            case R.id.btn_log_with_tag:
-                LogUtils.vTag("customTag", "verbose");
-                LogUtils.dTag("customTag", "debug");
-                LogUtils.iTag("customTag", "info");
-                LogUtils.wTag("customTag", "warn");
-                LogUtils.eTag("customTag", "error");
-                LogUtils.aTag("customTag", "assert");
-                break;
-            case R.id.btn_log_in_new_thread:
-                Thread thread = new Thread(mRunnable);
-                thread.start();
-                break;
-            case R.id.btn_log_null:
-                LogUtils.v((Object) null);
-                LogUtils.d((Object) null);
-                LogUtils.i((Object) null);
-                LogUtils.w((Object) null);
-                LogUtils.e((Object) null);
-                LogUtils.a((Object) null);
-                break;
-            case R.id.btn_log_many_params:
-                LogUtils.v("verbose0", "verbose1");
-                LogUtils.vTag("customTag", "verbose0", "verbose1");
-                LogUtils.d("debug0", "debug1");
-                LogUtils.dTag("customTag", "debug0", "debug1");
-                LogUtils.i("info0", "info1");
-                LogUtils.iTag("customTag", "info0", "info1");
-                LogUtils.w("warn0", "warn1");
-                LogUtils.wTag("customTag", "warn0", "warn1");
-                LogUtils.e("error0", "error1");
-                LogUtils.eTag("customTag", "error0", "error1");
-                LogUtils.a("assert0", "assert1");
-                LogUtils.aTag("customTag", "assert0", "assert1");
-                break;
-            case R.id.btn_log_long:
-                LogUtils.d(LONG_STR);
-                break;
-            case R.id.btn_log_file:
-                for (int i = 0; i < 100; i++) {
-                    LogUtils.file("test0 log to file");
-                    LogUtils.file(LogUtils.I, "test0 log to file");
-                }
-                break;
-            case R.id.btn_log_json:
-                LogUtils.json(JSON);
-                LogUtils.json(LogUtils.I, JSON);
-                break;
-            case R.id.btn_log_xml:
-                LogUtils.xml(XML);
-                LogUtils.xml(LogUtils.I, XML);
-                break;
-            case R.id.btn_log_array:
-                LogUtils.e((Object) ONE_D_ARRAY);
-                LogUtils.e((Object) TWO_D_ARRAY);
-                break;
-            case R.id.btn_log_throwable:
-                LogUtils.e(THROWABLE);
-                break;
-            case R.id.btn_log_bundle:
-                LogUtils.e(BUNDLE);
-                break;
-            case R.id.btn_log_intent:
-                LogUtils.e(INTENT);
-                break;
-            case R.id.btn_log_array_list:
-                LogUtils.e(LIST);
-                break;
-        }
-    }
-
-    private void updateConfig(int args) {
-        switch (args) {
-            case UPDATE_LOG:
-                log = !log;
-                break;
-            case UPDATE_CONSOLE:
-                console = !console;
-                break;
-            case UPDATE_TAG:
-                globalTag = globalTag.equals(TAG) ? "" : TAG;
-                break;
-            case UPDATE_HEAD:
-                head = !head;
-                break;
-            case UPDATE_FILE:
-                file = !file;
-                break;
-            case UPDATE_DIR:
-                if (getDir().contains("test")) {
-                    dir = null;
-                } else {
-                    if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
-                        dir = Environment.getExternalStorageDirectory().getPath() + System.getProperty("file.separator") + "test";
-                    }
-                }
-                break;
-            case UPDATE_BORDER:
-                border = !border;
-                break;
-            case UPDATE_SINGLE:
-                single = !single;
-                break;
-            case UPDATE_CONSOLE_FILTER:
-                consoleFilter = consoleFilter == LogUtils.V ? LogUtils.W : LogUtils.V;
-                break;
-            case UPDATE_FILE_FILTER:
-                fileFilter = fileFilter == LogUtils.V ? LogUtils.I : LogUtils.V;
-                break;
-        }
-        mConfig.setLogSwitch(log)
-                .setConsoleSwitch(console)
-                .setGlobalTag(globalTag)
-                .setLogHeadSwitch(head)
-                .setLog2FileSwitch(file)
-                .setDir(dir)
-                .setBorderSwitch(border)
-                .setSingleTagSwitch(single)
-                .setConsoleFilter(consoleFilter)
-                .setFileFilter(fileFilter);
-        tvAboutLog.setText(mConfig.toString());
-    }
-
-    private String getDir() {
-        return mConfig.toString().split(System.getProperty("line.separator"))[5].substring(5);
-    }
-
-    @Override
-    protected void onDestroy() {
-        UtilsApp.getInstance().initLog();
-        super.onDestroy();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/metaData/MetaDataActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/metaData/MetaDataActivity.java
deleted file mode 100644
index 7ada61d055..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/metaData/MetaDataActivity.java
+++ /dev/null
@@ -1,60 +0,0 @@
-package com.blankj.androidutilcode.feature.core.metaData;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.MetaDataUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/05/15
- *     desc  : demo about MetaDataUtils
- * </pre>
- */
-public class MetaDataActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, MetaDataActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_meta_data;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_meta_data));
-
-        TextView tvAboutMetaData = findViewById(R.id.tv_about_metadata);
-        tvAboutMetaData.setText(new SpanUtils()
-                .appendLine("getMetaDataInApp: " + MetaDataUtils.getMetaDataInApp("app_meta_data"))
-                .append("getMetaDataInActivity: " + MetaDataUtils.getMetaDataInActivity(this, "activity_meta_data"))
-                .create());
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/network/NetworkActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/network/NetworkActivity.java
deleted file mode 100644
index 232d8333c1..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/network/NetworkActivity.java
+++ /dev/null
@@ -1,115 +0,0 @@
-package com.blankj.androidutilcode.feature.core.network;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.NetworkUtils;
-import com.blankj.utilcode.util.SpanUtils;
-import com.blankj.utilcode.util.ThreadUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about NetworkUtils
- * </pre>
- */
-public class NetworkActivity extends BaseBackActivity {
-
-    TextView               tvAboutNetwork;
-    TextView               tvAboutNetworkAsync;
-    ThreadUtils.SimpleTask mSimpleTask = new ThreadUtils.SimpleTask<String>() {
-        @Override
-        public String doInBackground() {
-            return "isAvailableByPing: " + NetworkUtils.isAvailableByPing()
-                    + "\ngetBaiduDomainAddress: " + NetworkUtils.getDomainAddress("baidu.com");
-        }
-
-        @Override
-        public void onSuccess(String result) {
-            tvAboutNetworkAsync.setText(result);
-        }
-    };
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, NetworkActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_network;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_network));
-
-        tvAboutNetwork = findViewById(R.id.tv_about_network);
-        tvAboutNetworkAsync = findViewById(R.id.tv_about_network_async);
-        findViewById(R.id.btn_open_wireless_settings).setOnClickListener(this);
-        findViewById(R.id.btn_set_wifi_enabled).setOnClickListener(this);
-        updateAboutNetwork();
-    }
-
-    @Override
-    public void doBusiness() {
-        ThreadUtils.executeBySingle(mSimpleTask);
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_open_wireless_settings:
-                NetworkUtils.openWirelessSettings();
-                break;
-            case R.id.btn_set_data_enabled:
-                NetworkUtils.setMobileDataEnabled(!NetworkUtils.getMobileDataEnabled());
-                break;
-            case R.id.btn_set_wifi_enabled:
-                NetworkUtils.setWifiEnabled(!NetworkUtils.getWifiEnabled());
-                break;
-        }
-        updateAboutNetwork();
-    }
-
-    private void updateAboutNetwork() {
-        tvAboutNetwork.setText(new SpanUtils()
-                .appendLine("isConnected: " + NetworkUtils.isConnected())
-                .appendLine("getMobileDataEnabled: " + NetworkUtils.getMobileDataEnabled())
-                .appendLine("isMobileData: " + NetworkUtils.isMobileData())
-                .appendLine("is4G: " + NetworkUtils.is4G())
-                .appendLine("getWifiEnabled: " + NetworkUtils.getWifiEnabled())
-                .appendLine("isWifiConnected: " + NetworkUtils.isWifiConnected())
-                .appendLine("isWifiAvailable: " + NetworkUtils.isWifiAvailable())
-                .appendLine("getNetworkOperatorName: " + NetworkUtils.getNetworkOperatorName())
-                .appendLine("getNetworkTypeName: " + NetworkUtils.getNetworkType())
-                .appendLine("getIPv4Address: " + NetworkUtils.getIPAddress(true))
-                .appendLine("getIPv6Address: " + NetworkUtils.getIPAddress(false))
-                .appendLine("getBroadcastIpAddress: " + NetworkUtils.getBroadcastIpAddress())
-                .appendLine("getIpAddressByWifi: " + NetworkUtils.getIpAddressByWifi())
-                .appendLine("getGatewayByWifi: " + NetworkUtils.getGatewayByWifi())
-                .appendLine("getNetMaskByWifi: " + NetworkUtils.getNetMaskByWifi())
-                .append("getServerAddressByWifi: " + NetworkUtils.getServerAddressByWifi())
-                .create()
-        );
-    }
-
-    @Override
-    protected void onDestroy() {
-        mSimpleTask.cancel();
-        super.onDestroy();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/path/PathActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/path/PathActivity.java
deleted file mode 100644
index 41a9850f2b..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/path/PathActivity.java
+++ /dev/null
@@ -1,98 +0,0 @@
-package com.blankj.androidutilcode.feature.core.path;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.PathUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about PathUtils
- * </pre>
- */
-public class PathActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, PathActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_path;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_path));
-
-        TextView tvAboutMetaData = findViewById(R.id.tv_about_path);
-        tvAboutMetaData.setText(new SpanUtils()
-                .appendLine("getRootPath: " + PathUtils.getRootPath())
-                .appendLine("getDataPath: " + PathUtils.getDataPath())
-                .appendLine("getDownloadCachePath: " + PathUtils.getDownloadCachePath())
-
-                .appendLine("getInternalAppDataPath: " + PathUtils.getInternalAppDataPath())
-                .appendLine("getInternalAppCodeCacheDir: " + PathUtils.getInternalAppCodeCacheDir())
-                .appendLine("getInternalAppCachePath: " + PathUtils.getInternalAppCachePath())
-                .appendLine("getInternalAppDbsPath: " + PathUtils.getInternalAppDbsPath())
-                .appendLine("getInternalAppDbPath: " + PathUtils.getInternalAppDbPath("demo"))
-                .appendLine("getInternalAppFilesPath: " + PathUtils.getInternalAppFilesPath())
-                .appendLine("getInternalAppSpPath: " + PathUtils.getInternalAppSpPath())
-                .appendLine("getInternalAppNoBackupFilesPath: " + PathUtils.getInternalAppNoBackupFilesPath())
-
-                .appendLine("getExternalStoragePath: " + PathUtils.getExternalStoragePath())
-                .appendLine("getExternalMusicPath: " + PathUtils.getExternalMusicPath())
-                .appendLine("getExternalPodcastsPath: " + PathUtils.getExternalPodcastsPath())
-                .appendLine("getExternalRingtonesPath: " + PathUtils.getExternalRingtonesPath())
-                .appendLine("getExternalAlarmsPath: " + PathUtils.getExternalAlarmsPath())
-                .appendLine("getExternalNotificationsPath: " + PathUtils.getExternalNotificationsPath())
-                .appendLine("getExternalPicturesPath: " + PathUtils.getExternalPicturesPath())
-                .appendLine("getExternalMoviesPath: " + PathUtils.getExternalMoviesPath())
-                .appendLine("getExternalDownloadsPath: " + PathUtils.getExternalDownloadsPath())
-                .appendLine("getExternalDcimPath: " + PathUtils.getExternalDcimPath())
-                .appendLine("getExternalDocumentsPath: " + PathUtils.getExternalDocumentsPath())
-
-                .appendLine("getExternalAppDataPath: " + PathUtils.getExternalAppDataPath())
-                .appendLine("getExternalAppCachePath: " + PathUtils.getExternalAppCachePath())
-                .appendLine("getExternalAppFilesPath: " + PathUtils.getExternalAppFilesPath())
-                .appendLine("getExternalAppMusicPath: " + PathUtils.getExternalAppMusicPath())
-                .appendLine("getExternalAppPodcastsPath: " + PathUtils.getExternalAppPodcastsPath())
-                .appendLine("getExternalAppRingtonesPath: " + PathUtils.getExternalAppRingtonesPath())
-                .appendLine("getExternalAppAlarmsPath: " + PathUtils.getExternalAppAlarmsPath())
-                .appendLine("getExternalAppNotificationsPath: " + PathUtils.getExternalAppNotificationsPath())
-                .appendLine("getExternalAppPicturesPath: " + PathUtils.getExternalAppPicturesPath())
-                .appendLine("getExternalAppMoviesPath: " + PathUtils.getExternalAppMoviesPath())
-                .appendLine("getExternalAppDownloadPath: " + PathUtils.getExternalAppDownloadPath())
-                .appendLine("getExternalAppDcimPath: " + PathUtils.getExternalAppDcimPath())
-                .appendLine("getExternalAppDocumentsPath: " + PathUtils.getExternalAppDocumentsPath())
-                .appendLine("getExternalAppObbPath: " + PathUtils.getExternalAppObbPath())
-                .append("")
-                .create());
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/permission/PermissionActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/permission/PermissionActivity.java
deleted file mode 100644
index 8e92f82812..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/permission/PermissionActivity.java
+++ /dev/null
@@ -1,179 +0,0 @@
-package com.blankj.androidutilcode.feature.core.permission;
-
-import android.Manifest;
-import android.app.Activity;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.helper.DialogHelper;
-import com.blankj.utilcode.constant.PermissionConstants;
-import com.blankj.utilcode.util.LogUtils;
-import com.blankj.utilcode.util.PermissionUtils;
-import com.blankj.utilcode.util.ScreenUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/01
- *     desc  : demo about PermissionUtils
- * </pre>
- */
-public class PermissionActivity extends BaseBackActivity {
-
-    TextView tvAboutPermission;
-    String   permissions;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, PermissionActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_permission;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_permission));
-
-        tvAboutPermission = findViewById(R.id.tv_about_permission);
-        findViewById(R.id.btn_open_app_settings).setOnClickListener(this);
-        findViewById(R.id.btn_request_calendar).setOnClickListener(this);
-        findViewById(R.id.btn_request_record_audio).setOnClickListener(this);
-        findViewById(R.id.btn_request_calendar_and_record_audio).setOnClickListener(this);
-
-        StringBuilder sb = new StringBuilder();
-        for (String s : PermissionUtils.getPermissions()) {
-            sb.append(s.substring(s.lastIndexOf('.') + 1)).append("\n");
-        }
-        permissions = sb.toString();
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-        updateAboutPermission();
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_open_app_settings:
-                PermissionUtils.launchAppDetailsSettings();
-                break;
-            case R.id.btn_request_calendar:
-                PermissionUtils.permission(PermissionConstants.CALENDAR)
-                        .rationale(new PermissionUtils.OnRationaleListener() {
-                            @Override
-                            public void rationale(final ShouldRequest shouldRequest) {
-                                DialogHelper.showRationaleDialog(shouldRequest);
-                            }
-                        })
-                        .callback(new PermissionUtils.FullCallback() {
-                            @Override
-                            public void onGranted(List<String> permissionsGranted) {
-                                updateAboutPermission();
-                                LogUtils.d(permissionsGranted);
-                            }
-
-                            @Override
-                            public void onDenied(List<String> permissionsDeniedForever,
-                                                 List<String> permissionsDenied) {
-                                if (!permissionsDeniedForever.isEmpty()) {
-                                    DialogHelper.showOpenAppSettingDialog();
-                                }
-                                LogUtils.d(permissionsDeniedForever, permissionsDenied);
-                            }
-                        })
-                        .theme(new PermissionUtils.ThemeCallback() {
-                            @Override
-                            public void onActivityCreate(Activity activity) {
-                                ScreenUtils.setFullScreen(activity);
-                            }
-                        })
-                        .request();
-                break;
-            case R.id.btn_request_record_audio:
-                PermissionUtils.permission(PermissionConstants.MICROPHONE)
-                        .rationale(new PermissionUtils.OnRationaleListener() {
-                            @Override
-                            public void rationale(final ShouldRequest shouldRequest) {
-                                DialogHelper.showRationaleDialog(shouldRequest);
-                            }
-                        })
-                        .callback(new PermissionUtils.FullCallback() {
-                            @Override
-                            public void onGranted(List<String> permissionsGranted) {
-                                updateAboutPermission();
-                                LogUtils.d(permissionsGranted);
-                            }
-
-                            @Override
-                            public void onDenied(List<String> permissionsDeniedForever,
-                                                 List<String> permissionsDenied) {
-                                if (!permissionsDeniedForever.isEmpty()) {
-                                    DialogHelper.showOpenAppSettingDialog();
-                                }
-                                LogUtils.d(permissionsDeniedForever, permissionsDenied);
-                            }
-                        })
-                        .request();
-                break;
-            case R.id.btn_request_calendar_and_record_audio:
-                PermissionUtils.permission(PermissionConstants.CALENDAR, PermissionConstants.MICROPHONE)
-                        .rationale(new PermissionUtils.OnRationaleListener() {
-                            @Override
-                            public void rationale(final ShouldRequest shouldRequest) {
-                                DialogHelper.showRationaleDialog(shouldRequest);
-                            }
-                        })
-                        .callback(new PermissionUtils.FullCallback() {
-                            @Override
-                            public void onGranted(List<String> permissionsGranted) {
-                                updateAboutPermission();
-                                LogUtils.d(permissionsGranted);
-                            }
-
-                            @Override
-                            public void onDenied(List<String> permissionsDeniedForever,
-                                                 List<String> permissionsDenied) {
-                                if (!permissionsDeniedForever.isEmpty()) {
-                                    DialogHelper.showOpenAppSettingDialog();
-                                }
-                                LogUtils.d(permissionsDeniedForever, permissionsDenied);
-                            }
-                        })
-                        .request();
-                break;
-        }
-    }
-
-    private void updateAboutPermission() {
-        tvAboutPermission.setText(new SpanUtils()
-                .append(permissions).setBold()
-                .appendLine("READ_CALENDAR: " + PermissionUtils.isGranted(Manifest.permission.READ_CALENDAR))
-                .appendLine("RECORD_AUDIO: " + PermissionUtils.isGranted(Manifest.permission.RECORD_AUDIO))
-                .create());
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/phone/PhoneActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/phone/PhoneActivity.java
deleted file mode 100644
index a0b2abc63b..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/phone/PhoneActivity.java
+++ /dev/null
@@ -1,127 +0,0 @@
-package com.blankj.androidutilcode.feature.core.phone;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.helper.PermissionHelper;
-import com.blankj.utilcode.util.PhoneUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about PhoneUtils
- * </pre>
- */
-public class PhoneActivity extends BaseBackActivity {
-
-    private TextView tvAboutPhone;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, PhoneActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_phone;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_phone));
-
-        findViewById(R.id.btn_dial).setOnClickListener(this);
-        findViewById(R.id.btn_call).setOnClickListener(this);
-        findViewById(R.id.btn_send_sms).setOnClickListener(this);
-        findViewById(R.id.btn_send_sms_silent).setOnClickListener(this);
-        tvAboutPhone = findViewById(R.id.tv_about_phone);
-
-        PermissionHelper.requestPhone(
-                new PermissionHelper.OnPermissionGrantedListener() {
-                    @SuppressLint("MissingPermission")
-                    @Override
-                    public void onPermissionGranted() {
-                        tvAboutPhone.setText(new SpanUtils()
-                                .appendLine("isPhone: " + PhoneUtils.isPhone())
-                                .appendLine("getDeviceId: " + PhoneUtils.getDeviceId())
-                                .appendLine("getIMEI: " + PhoneUtils.getIMEI())
-                                .appendLine("getMEID: " + PhoneUtils.getMEID())
-                                .appendLine("getIMSI: " + PhoneUtils.getIMSI())
-                                .appendLine("getPhoneType: " + PhoneUtils.getPhoneType())
-                                .appendLine("isSimCardReady: " + PhoneUtils.isSimCardReady())
-                                .appendLine("getSimOperatorName: " + PhoneUtils.getSimOperatorName())
-                                .appendLine("getSimOperatorByMnc: " + PhoneUtils.getSimOperatorByMnc())
-                                .appendLine("getPhoneStatus: " + PhoneUtils.getPhoneStatus())
-                                .create());
-                    }
-                },
-                new PermissionHelper.OnPermissionDeniedListener() {
-                    @Override
-                    public void onPermissionDenied() {
-                        tvAboutPhone.setText(new SpanUtils()
-                                .appendLine("isPhone: " + PhoneUtils.isPhone())
-                                .appendLine("getDeviceId: " + "need permission")
-                                .appendLine("getIMEI: " + "need permission")
-                                .appendLine("getMEID: " + "need permission")
-                                .appendLine("getIMSI: " + "need permission")
-                                .appendLine("getPhoneType: " + PhoneUtils.getPhoneType())
-                                .appendLine("isSimCardReady: " + PhoneUtils.isSimCardReady())
-                                .appendLine("getSimOperatorName: " + PhoneUtils.getSimOperatorName())
-                                .appendLine("getSimOperatorByMnc: " + PhoneUtils.getSimOperatorByMnc())
-                                .appendLine("getPhoneStatus: " + "need permission")
-                                .create());
-                    }
-                }
-        );
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_dial:
-                PhoneUtils.dial("10000");
-                break;
-            case R.id.btn_call:
-                PermissionHelper.requestPhone(new PermissionHelper.OnPermissionGrantedListener() {
-                    @SuppressLint("MissingPermission")
-                    @Override
-                    public void onPermissionGranted() {
-                        PhoneUtils.call("10000");
-                    }
-                });
-                break;
-            case R.id.btn_send_sms:
-                PhoneUtils.sendSms("10000", "sendSms");
-                break;
-            case R.id.btn_send_sms_silent:
-                PermissionHelper.requestSms(new PermissionHelper.OnPermissionGrantedListener() {
-                    @SuppressLint("MissingPermission")
-                    @Override
-                    public void onPermissionGranted() {
-                        PhoneUtils.sendSmsSilent("10000", "sendSmsSilent");
-                    }
-                });
-                break;
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/process/ProcessActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/process/ProcessActivity.java
deleted file mode 100644
index a262a23ec9..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/process/ProcessActivity.java
+++ /dev/null
@@ -1,95 +0,0 @@
-package com.blankj.androidutilcode.feature.core.process;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.ProcessUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-import java.util.Iterator;
-import java.util.Set;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about ProcessUtils
- * </pre>
- */
-public class ProcessActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, ProcessActivity.class);
-        context.startActivity(starter);
-    }
-
-    private TextView tvAboutProcess;
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_process;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_process));
-
-        findViewById(R.id.btn_kill_all_background_processes).setOnClickListener(this);
-        tvAboutProcess = findViewById(R.id.tv_about_process);
-        Set<String> set = ProcessUtils.getAllBackgroundProcesses();
-        tvAboutProcess.setText(new SpanUtils()
-                .appendLine("getForegroundProcessName: " + ProcessUtils.getForegroundProcessName())
-                .appendLine("getAllBackgroundProcesses: " + getSetItems(set))
-                .appendLine("size: " + set.size())
-                .appendLine("isMainProcess: " + ProcessUtils.isMainProcess())
-                .append("getCurrentProcessName: " + ProcessUtils.getCurrentProcessName())
-                .create()
-        );
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_kill_all_background_processes:
-                Set<String> set = ProcessUtils.getAllBackgroundProcesses();
-                Set<String> set1 = ProcessUtils.killAllBackgroundProcesses();
-                tvAboutProcess.setText(new SpanUtils()
-                        .appendLine("getForegroundProcessName: " + ProcessUtils.getForegroundProcessName())
-                        .appendLine("getAllBackgroundProcesses: " + getSetItems(set))
-                        .appendLine("size: " + set.size())
-                        .appendLine("killAllBackgroundProcesses: " + getSetItems(set1))
-                        .appendLine("size: " + set1.size())
-                        .appendLine("isMainProcess: " + ProcessUtils.isMainProcess())
-                        .append("getCurrentProcessName: " + ProcessUtils.getCurrentProcessName())
-                        .create()
-                );
-                break;
-        }
-    }
-
-    private String getSetItems(Set<String> set) {
-        Iterator<String> iterator = set.iterator();
-        StringBuilder sb = new StringBuilder();
-        while (iterator.hasNext()) {
-            sb.append(iterator.next()).append("\n");
-        }
-        return sb.toString();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/reflect/ReflectActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/reflect/ReflectActivity.java
deleted file mode 100644
index 40d9779805..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/reflect/ReflectActivity.java
+++ /dev/null
@@ -1,61 +0,0 @@
-package com.blankj.androidutilcode.feature.core.reflect;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.ReflectUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/29
- *     desc  : demo about ReflectUtils
- * </pre>
- */
-public class ReflectActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, ReflectActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_reflect;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_reflect));
-
-        TextView tvAboutReflect = findViewById(R.id.tv_about_reflect);
-
-        tvAboutReflect.setText(new SpanUtils()
-                .appendLine("before reflect: " + ReflectUtils.reflect(TestPrivateStaticFinal.class).field("I1").get())
-                .append("after reflect: " + ReflectUtils.reflect(TestPrivateStaticFinal.class).field("I1", 2).field("I1").get())
-                .create());
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/reflect/TestPrivateStaticFinal.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/reflect/TestPrivateStaticFinal.java
deleted file mode 100755
index 03c512d21c..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/reflect/TestPrivateStaticFinal.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.blankj.androidutilcode.feature.core.reflect;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/12
- *     desc  : demo about ReflectUtils
- * </pre>
- */
-public class TestPrivateStaticFinal {
-    private static final int I1 = 1;
-
-    public static int getI1() {
-        return I1;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/resource/ResourceActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/resource/ResourceActivity.java
deleted file mode 100644
index e4d459abc6..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/resource/ResourceActivity.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.blankj.androidutilcode.feature.core.resource;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.Config;
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.ResourceUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/05/07
- *     desc  :
- * </pre>
- */
-public class ResourceActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, ResourceActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_resource;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        findViewById(R.id.btn_resource_test_assets).setOnClickListener(this);
-        findViewById(R.id.btn_resource_test_raw).setOnClickListener(this);
-        TextView tvAboutResource = findViewById(R.id.tv_about_resource);
-
-        tvAboutResource.setText(new SpanUtils()
-                .appendLine("readAssets2String: " + ResourceUtils.readAssets2String("test/test.txt"))
-                .appendLine("readAssets2List: " + ResourceUtils.readAssets2List("test/test.txt").toString())
-                .append("readRaw2List: " + ResourceUtils.readRaw2List(R.raw.test).toString())
-                .create());
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_resource_test_assets:
-                ResourceUtils.copyFileFromAssets("test", Config.CACHE_PATH + "/assets/test");
-                break;
-            case R.id.btn_resource_test_raw:
-                ResourceUtils.copyFileFromRaw(R.raw.test, Config.CACHE_PATH + "/raw/test.txt");
-                break;
-        }
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/sdcard/SDCardActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/sdcard/SDCardActivity.java
deleted file mode 100644
index 1d61cac3c5..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/sdcard/SDCardActivity.java
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.blankj.androidutilcode.feature.core.sdcard;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.SDCardUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about SDCardUtils
- * </pre>
- */
-public class SDCardActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, SDCardActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_sdcard;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_sdcard));
-
-        TextView tvAboutSdcard = findViewById(R.id.tv_about_sdcard);
-        tvAboutSdcard.setText(new SpanUtils()
-                .appendLine("isSDCardEnableByEnvironment: " + SDCardUtils.isSDCardEnableByEnvironment())
-                .appendLine("getSDCardPathByEnvironment: " + SDCardUtils.getSDCardPathByEnvironment())
-                .appendLine("isSDCardEnable: " + SDCardUtils.isSDCardEnable())
-                .appendLine("getSDCardPaths: " + SDCardUtils.getSDCardPaths())
-                .appendLine("getInnerSDCardPaths: " + SDCardUtils.getSDCardPaths(true))
-                .appendLine("getOuterSDCardPaths: " + SDCardUtils.getSDCardPaths(false))
-                .create()
-        );
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/snackbar/SnackbarActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/snackbar/SnackbarActivity.java
deleted file mode 100644
index 080ae85b5e..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/snackbar/SnackbarActivity.java
+++ /dev/null
@@ -1,205 +0,0 @@
-package com.blankj.androidutilcode.feature.core.snackbar;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.annotation.StringRes;
-import android.text.SpannableStringBuilder;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.SnackbarUtils;
-import com.blankj.utilcode.util.SpanUtils;
-import com.blankj.utilcode.util.ToastUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/17
- *     desc  : demo about SnackbarUtils
- * </pre>
- */
-public class SnackbarActivity extends BaseBackActivity {
-
-    View snackBarRootView;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, SnackbarActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_snackbar;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_snackbar));
-
-        snackBarRootView = findViewById(android.R.id.content);
-        findViewById(R.id.btn_short_snackbar).setOnClickListener(this);
-        findViewById(R.id.btn_short_snackbar_with_action).setOnClickListener(this);
-        findViewById(R.id.btn_long_snackbar).setOnClickListener(this);
-        findViewById(R.id.btn_long_snackbar_with_action).setOnClickListener(this);
-        findViewById(R.id.btn_indefinite_snackbar).setOnClickListener(this);
-        findViewById(R.id.btn_indefinite_snackbar_with_action).setOnClickListener(this);
-        findViewById(R.id.btn_add_view).setOnClickListener(this);
-        findViewById(R.id.btn_add_view_with_action).setOnClickListener(this);
-        findViewById(R.id.btn_show_success).setOnClickListener(this);
-        findViewById(R.id.btn_show_warning).setOnClickListener(this);
-        findViewById(R.id.btn_show_error).setOnClickListener(this);
-        findViewById(R.id.btn_dismiss_snackbar).setOnClickListener(this);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_short_snackbar:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_short))
-                        .setMessageColor(Color.WHITE)
-                        .setBgResource(R.drawable.snackbar_custom_bg)
-                        .show();
-                break;
-
-            case R.id.btn_short_snackbar_with_action:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_short))
-                        .setMessageColor(Color.WHITE)
-                        .setBgResource(R.drawable.snackbar_custom_bg)
-                        .setAction(getString(R.string.snackbar_click), Color.YELLOW, new View.OnClickListener() {
-                            @Override
-                            public void onClick(View v) {
-                                ToastUtils.showShort(getString(R.string.snackbar_click));
-                            }
-                        })
-                        .show();
-                break;
-
-            case R.id.btn_long_snackbar:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_long))
-                        .setMessageColor(Color.WHITE)
-                        .setDuration(SnackbarUtils.LENGTH_LONG)
-                        .setBgResource(R.drawable.snackbar_custom_bg)
-                        .show();
-                break;
-
-            case R.id.btn_long_snackbar_with_action:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_long))
-                        .setMessageColor(Color.WHITE)
-                        .setBgResource(R.drawable.snackbar_custom_bg)
-                        .setDuration(SnackbarUtils.LENGTH_LONG)
-                        .setAction(getString(R.string.snackbar_click), Color.YELLOW, new View.OnClickListener() {
-                            @Override
-                            public void onClick(View v) {
-                                ToastUtils.showShort(getString(R.string.snackbar_click));
-                            }
-                        })
-                        .show();
-                break;
-
-            case R.id.btn_indefinite_snackbar:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_indefinite))
-                        .setMessageColor(Color.WHITE)
-                        .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
-                        .setBgResource(R.drawable.snackbar_custom_bg)
-                        .show();
-                break;
-
-            case R.id.btn_indefinite_snackbar_with_action:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_indefinite))
-                        .setMessageColor(Color.WHITE)
-                        .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
-                        .setBgResource(R.drawable.snackbar_custom_bg)
-                        .setAction(getString(R.string.snackbar_click), Color.YELLOW, new View.OnClickListener() {
-                            @Override
-                            public void onClick(View v) {
-                                ToastUtils.showShort(getString(R.string.snackbar_click));
-                            }
-                        })
-                        .show();
-                break;
-
-            case R.id.btn_add_view:
-                ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
-                SnackbarUtils.with(snackBarRootView)
-                        .setBgColor(Color.TRANSPARENT)
-                        .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
-                        .show();
-                SnackbarUtils.addView(R.layout.snackbar_custom, params);
-                break;
-
-            case R.id.btn_add_view_with_action:
-                SnackbarUtils.with(snackBarRootView)
-                        .setBgColor(Color.TRANSPARENT)
-                        .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
-                        .show();
-                params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
-                        ViewGroup.LayoutParams.MATCH_PARENT);
-                SnackbarUtils.addView(R.layout.snackbar_custom, params);
-                View snackbarView = SnackbarUtils.getView();
-                if (snackbarView != null) {
-                    TextView tvSnackbarCustom = snackbarView.findViewById(R.id.tv_snackbar_custom);
-                    tvSnackbarCustom.setText("点我可消失");
-                    snackbarView.setOnClickListener(new View.OnClickListener() {
-                        @Override
-                        public void onClick(View v) {
-                            SnackbarUtils.dismiss();
-                        }
-                    });
-                }
-                break;
-
-            case R.id.btn_show_success:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_success))
-                        .showSuccess();
-                break;
-
-            case R.id.btn_show_warning:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_warning))
-                        .showWarning();
-                break;
-
-            case R.id.btn_show_error:
-                SnackbarUtils.with(snackBarRootView)
-                        .setMessage(getMsg(R.string.snackbar_error))
-                        .showError();
-                break;
-
-            case R.id.btn_dismiss_snackbar:
-                SnackbarUtils.dismiss();
-                break;
-        }
-    }
-
-    private SpannableStringBuilder getMsg(@StringRes int resId) {
-        return new SpanUtils()
-                .appendImage(R.mipmap.ic_launcher, SpanUtils.ALIGN_CENTER)
-                .appendSpace(32)
-                .append(getString(resId)).setFontSize(24, true)
-                .create();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/sp/SPActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/sp/SPActivity.java
deleted file mode 100644
index 4bb0181913..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/sp/SPActivity.java
+++ /dev/null
@@ -1,85 +0,0 @@
-package com.blankj.androidutilcode.feature.core.sp;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.data.DataManager;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/08
- *     desc  : demo about SPUtils
- * </pre>
- */
-public class SPActivity extends BaseBackActivity {
-
-    private TextView tvAboutSp;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, SPActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_sp;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        tvAboutSp = findViewById(R.id.tv_about_sp);
-        findViewById(R.id.btn_sp_put_string).setOnClickListener(this);
-        findViewById(R.id.btn_sp_put_int).setOnClickListener(this);
-        findViewById(R.id.btn_sp_put_long).setOnClickListener(this);
-        findViewById(R.id.btn_sp_put_float).setOnClickListener(this);
-        findViewById(R.id.btn_sp_put_boolean).setOnClickListener(this);
-        findViewById(R.id.btn_sp_clear).setOnClickListener(this);
-    }
-
-    @Override
-    public void doBusiness() {
-        updateAboutSp();
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        switch (view.getId()) {
-            case R.id.btn_sp_put_string:
-                DataManager.putString();
-                break;
-            case R.id.btn_sp_put_int:
-                DataManager.putInt();
-                break;
-            case R.id.btn_sp_put_long:
-                DataManager.putLong();
-                break;
-            case R.id.btn_sp_put_float:
-                DataManager.putFloat();
-                break;
-            case R.id.btn_sp_put_boolean:
-                DataManager.putBoolean();
-                break;
-            case R.id.btn_sp_clear:
-                DataManager.clear();
-                break;
-        }
-        updateAboutSp();
-    }
-
-    private void updateAboutSp() {
-        tvAboutSp.setText(DataManager.sp2String());
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/BlurMaskFilterSpan.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/span/BlurMaskFilterSpan.java
deleted file mode 100644
index 029d42706e..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/BlurMaskFilterSpan.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.blankj.androidutilcode.feature.core.span;
-
-import android.graphics.BlurMaskFilter;
-import android.graphics.MaskFilter;
-import android.text.TextPaint;
-import android.text.style.CharacterStyle;
-import android.text.style.UpdateAppearance;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about SpanUtils
- * </pre>
- */
-public class BlurMaskFilterSpan extends CharacterStyle implements UpdateAppearance {
-
-    private float      mRadius;
-    private MaskFilter mFilter;
-
-    public BlurMaskFilterSpan(float radius) {
-        mRadius = radius;
-    }
-
-    public void setRadius(float radius) {
-        mRadius = radius;
-        mFilter = new BlurMaskFilter(mRadius, BlurMaskFilter.Blur.NORMAL);
-    }
-
-    public float getRadius() {
-        return mRadius;
-    }
-
-    @Override
-    public void updateDrawState(TextPaint ds) {
-        ds.setMaskFilter(mFilter);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ForegroundAlphaColorSpan.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ForegroundAlphaColorSpan.java
deleted file mode 100644
index 5b1c5026a2..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ForegroundAlphaColorSpan.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.blankj.androidutilcode.feature.core.span;
-
-import android.graphics.Color;
-import android.support.annotation.ColorInt;
-import android.text.TextPaint;
-import android.text.style.CharacterStyle;
-import android.text.style.UpdateAppearance;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about SpanUtils
- * </pre>
- */
-public class ForegroundAlphaColorSpan extends CharacterStyle
-        implements UpdateAppearance {
-
-    private int mColor;
-
-    public ForegroundAlphaColorSpan(@ColorInt int color) {
-        mColor = color;
-    }
-
-    public void setAlpha(int alpha) {
-        mColor = Color.argb(alpha, Color.red(mColor), Color.green(mColor), Color.blue(mColor));
-    }
-
-    @Override
-    public void updateDrawState(TextPaint ds) {
-        ds.setColor(mColor);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ForegroundAlphaColorSpanGroup.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ForegroundAlphaColorSpanGroup.java
deleted file mode 100644
index 86df9615df..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ForegroundAlphaColorSpanGroup.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.blankj.androidutilcode.feature.core.span;
-
-import java.util.ArrayList;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about SpanUtils
- * </pre>
- */
-public class ForegroundAlphaColorSpanGroup {
-
-    private final float mAlpha;
-
-    private final ArrayList<ForegroundAlphaColorSpan> mSpans;
-
-    public ForegroundAlphaColorSpanGroup(float alpha) {
-        mAlpha = alpha;
-        mSpans = new ArrayList<>();
-    }
-
-    public void addSpan(ForegroundAlphaColorSpan span) {
-        span.setAlpha((int) (mAlpha * 255));
-        mSpans.add(span);
-    }
-
-    public void setAlpha(float alpha) {
-        int size = mSpans.size();
-        float total = 1.0f * size * alpha;
-        for (int index = 0; index < size; index++) {
-            ForegroundAlphaColorSpan span = mSpans.get(index);
-            if (total >= 1.0f) {
-                span.setAlpha(255);
-                total -= 1.0f;
-            } else {
-                span.setAlpha((int) (total * 255));
-                total = 0.0f;
-            }
-        }
-    }
-
-    public float getAlpha() {
-        return mAlpha;
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ShadowSpan.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ShadowSpan.java
deleted file mode 100644
index 457c575ce9..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/ShadowSpan.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.blankj.androidutilcode.feature.core.span;
-
-import android.text.TextPaint;
-import android.text.style.CharacterStyle;
-import android.text.style.UpdateAppearance;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about SpanUtils
- * </pre>
- */
-public class ShadowSpan extends CharacterStyle implements UpdateAppearance {
-    private float radius;
-    private float dx;
-    private float dy;
-    private int   shadowColor;
-
-    public ShadowSpan(float radius, float dx, float dy, int shadowColor) {
-        this.radius = radius;
-        this.dx = dx;
-        this.dy = dy;
-        this.shadowColor = shadowColor;
-    }
-
-    public float getDx() {
-        return dx;
-    }
-
-    public void setDx(float dx) {
-        this.dx = dx;
-    }
-
-    public float getDy() {
-        return dy;
-    }
-
-    public void setDy(float dy) {
-        this.dy = dy;
-    }
-
-    @Override
-    public void updateDrawState(TextPaint tp) {
-        tp.setShadowLayer(radius, dx, dy, shadowColor);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/SpanActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/span/SpanActivity.java
deleted file mode 100644
index 833659d2a4..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/span/SpanActivity.java
+++ /dev/null
@@ -1,268 +0,0 @@
-package com.blankj.androidutilcode.feature.core.span;
-
-import android.animation.ValueAnimator;
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Color;
-import android.graphics.LinearGradient;
-import android.graphics.Matrix;
-import android.graphics.Shader;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
-import android.text.SpannableStringBuilder;
-import android.text.TextPaint;
-import android.text.method.LinkMovementMethod;
-import android.text.style.ClickableSpan;
-import android.view.View;
-import android.view.animation.LinearInterpolator;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.SpanUtils;
-import com.blankj.utilcode.util.ToastUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : demo about SpanUtils
- * </pre>
- */
-public class SpanActivity extends BaseBackActivity {
-
-    SpanUtils              mSpanUtils;
-    SpannableStringBuilder animSsb;
-
-    int           lineHeight;
-    float         textSize;
-    ValueAnimator valueAnimator;
-    Shader        mShader;
-    float         mShaderWidth;
-    Matrix        matrix;
-
-    BlurMaskFilterSpan mBlurMaskFilterSpan;
-
-    ShadowSpan mShadowSpan;
-
-    ForegroundAlphaColorSpan mForegroundAlphaColorSpan;
-
-    ForegroundAlphaColorSpanGroup mForegroundAlphaColorSpanGroup;
-
-    String mPrinterString;
-
-
-    float    density;
-    TextView tvAboutSpan;
-    TextView tvAboutAnimSpan;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, SpanActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_span;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_span));
-
-        ClickableSpan clickableSpan = new ClickableSpan() {
-            @Override
-            public void onClick(View widget) {
-                ToastUtils.showShort("事件触发了");
-            }
-
-            @Override
-            public void updateDrawState(TextPaint ds) {
-                ds.setColor(Color.BLUE);
-                ds.setUnderlineText(false);
-            }
-        };
-
-        tvAboutSpan = findViewById(R.id.tv_about_span);
-        tvAboutAnimSpan = findViewById(R.id.tv_about_anim_span);
-
-        // 响应点击事件的话必须设置以下属性
-        tvAboutSpan.setMovementMethod(LinkMovementMethod.getInstance());
-        // 去掉点击事件后的高亮
-        tvAboutSpan.setHighlightColor(ContextCompat.getColor(this, android.R.color.transparent));
-        lineHeight = tvAboutSpan.getLineHeight();
-        textSize = tvAboutSpan.getTextSize();
-        density = getResources().getDisplayMetrics().density;
-
-//        initAnimSpan();
-//        startAnim();
-
-
-        tvAboutSpan.setText(new SpanUtils()
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_TOP)
-//                .append("大图").setBackgroundColor(Color.LTGRAY)
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_TOP)
-//                .append("顶部").setBackgroundColor(Color.LTGRAY)
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_TOP)
-//                .appendLine("对齐").setBackgroundColor(Color.LTGRAY)
-//
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_CENTER)
-//                .append("大图").setBackgroundColor(Color.GREEN)
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_CENTER)
-//                .append("居中").setBackgroundColor(Color.GREEN)
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_CENTER)
-//                .appendLine("对齐").setBackgroundColor(Color.GREEN)
-//
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_BOTTOM)
-//                .append("大图").setBackgroundColor(Color.LTGRAY)
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_BOTTOM)
-//                .append("底部").setBackgroundColor(Color.LTGRAY)
-//                .appendImage(R.drawable.shape_spannable_block_high, SpanUtils.ALIGN_BOTTOM)
-//                .appendLine("对齐").setBackgroundColor(Color.LTGRAY)
-//
-//                .appendLine("SpanUtils").setBackgroundColor(Color.LTGRAY).setBold().setForegroundColor(Color.YELLOW).setAlign(Layout.Alignment.ALIGN_CENTER)
-//                .appendLine("前景色").setForegroundColor(Color.GREEN)
-//                .appendLine("背景色").setBackgroundColor(Color.LTGRAY)
-                .append("行高顶部对齐").setLineHeight(3 * lineHeight, SpanUtils.ALIGN_TOP).setFontSize(20).setBackgroundColor(Color.GREEN)
-                .append("行高").setLineHeight(3 * lineHeight, SpanUtils.ALIGN_CENTER).setFontSize(40).setBackgroundColor(Color.LTGRAY)
-                .appendLine("行高顶部").setLineHeight(3 * lineHeight, SpanUtils.ALIGN_BOTTOM).setFontSize(60).setBackgroundColor(Color.LTGRAY)
-                .append("行高").setFontSize(100).setBackgroundColor(Color.GREEN)
-                .append("行高").setFontSize(20).setBackgroundColor(Color.LTGRAY).setUnderline().setVerticalAlign(SpanUtils.ALIGN_CENTER)
-//                .appendLine("行高居中对齐").setLineHeight(2 * lineHeight, SpanUtils.ALIGN_CENTER).setBackgroundColor(Color.LTGRAY)
-//                .appendLine("行高底部对齐").setLineHeight(2 * lineHeight, SpanUtils.ALIGN_BOTTOM).setBackgroundColor(Color.GREEN)
-//                .appendLine("测试段落缩，首行缩进两字，其他行不缩进").setLeadingMargin((int) textSize * 2, 10).setBackgroundColor(Color.GREEN)
-//                .appendLine("测试引用，后面的字是为了凑到两行的效果").setQuoteColor(Color.GREEN, 10, 10).setBackgroundColor(Color.LTGRAY)
-//                .appendLine("测试列表项，后面的字是为了凑到两行的效果").setBullet(Color.GREEN, 20, 10).setBackgroundColor(Color.LTGRAY).setBackgroundColor(Color.GREEN)
-//                .appendLine("32dp 字体").setFontSize(32, true)
-//                .appendLine("2 倍字体").setFontProportion(2)
-//                .appendLine("横向 2 倍字体").setFontXProportion(1.5f)
-//                .appendLine("删除线").setStrikethrough()
-//                .appendLine("下划线").setUnderline()
-//                .append("测试").appendLine("上标").setSuperscript()
-//                .append("测试").appendLine("下标").setSubscript()
-//                .appendLine("粗体").setBold()
-//                .appendLine("斜体").setItalic()
-//                .appendLine("粗斜体").setBoldItalic()
-//                .appendLine("monospace 字体").setFontFamily("monospace")
-//                .appendLine("自定义字体").setTypeface(Typeface.createFromAsset(getAssets(), "fonts/dnmbhs.ttf"))
-//                .appendLine("相反对齐").setAlign(Layout.Alignment.ALIGN_OPPOSITE)
-//                .appendLine("居中对齐").setAlign(Layout.Alignment.ALIGN_CENTER)
-//                .appendLine("正常对齐").setAlign(Layout.Alignment.ALIGN_NORMAL)
-//                .append("测试").appendLine("点击事件").setClickSpan(clickableSpan)
-//                .append("测试").appendLine("Url").setUrl("https://github.com/Blankj/AndroidUtilCode")
-//                .append("测试").appendLine("模糊").setBlur(3, BlurMaskFilter.Blur.NORMAL)
-//                .appendLine("颜色渐变").setShader(new LinearGradient(0, 0,
-//                        64 * density * 4, 0,
-//                        getResources().getIntArray(R.array.rainbow),
-//                        null,
-//                        Shader.TileMode.REPEAT)).setFontSize(64, true)
-//                .appendLine("图片着色").setFontSize(64, true).setShader(new BitmapShader(BitmapFactory.decodeResource(getResources(), R.drawable.span_cheetah),
-//                        Shader.TileMode.REPEAT,
-//                        Shader.TileMode.REPEAT))
-//                .appendLine("阴影效果").setFontSize(64, true).setBackgroundColor(Color.BLACK).setShadow(24, 8, 8, Color.WHITE)
-//
-//                .append("小图").setBackgroundColor(Color.GREEN)
-//                .appendImage(R.drawable.shape_spannable_block_low, SpanUtils.ALIGN_TOP)
-//                .append("顶部").setBackgroundColor(Color.GREEN)
-//                .appendImage(R.drawable.shape_spannable_block_low, SpanUtils.ALIGN_CENTER)
-//                .append("居中").setBackgroundColor(Color.GREEN)
-//                .appendImage(R.drawable.shape_spannable_block_low, SpanUtils.ALIGN_BASELINE)
-//                .append("底部").setBackgroundColor(Color.GREEN)
-//                .appendImage(R.drawable.shape_spannable_block_low, SpanUtils.ALIGN_BOTTOM)
-//                .appendLine("对齐").setBackgroundColor(Color.GREEN)
-//
-//                .append("测试空格").appendSpace(30, Color.LTGRAY).appendSpace(50, Color.GREEN).appendSpace(100).appendSpace(30, Color.LTGRAY).appendSpace(50, Color.GREEN)
-                .create());
-    }
-
-    private void initAnimSpan() {
-        mShaderWidth = 64 * density * 4;
-        mShader = new LinearGradient(0, 0,
-                mShaderWidth, 0,
-                getResources().getIntArray(R.array.rainbow),
-                null,
-                Shader.TileMode.REPEAT);
-        matrix = new Matrix();
-
-        mBlurMaskFilterSpan = new BlurMaskFilterSpan(25);
-
-        mShadowSpan = new ShadowSpan(8, 8, 8, Color.WHITE);
-
-        mForegroundAlphaColorSpan = new ForegroundAlphaColorSpan(Color.TRANSPARENT);
-
-        mForegroundAlphaColorSpanGroup = new ForegroundAlphaColorSpanGroup(0);
-
-        mPrinterString = "打印动画，后面的文字是为了测试打印效果...";
-
-        mSpanUtils = new SpanUtils()
-                .appendLine("彩虹动画").setFontSize(64, true).setShader(mShader)
-                .appendLine("模糊动画").setFontSize(64, true).setSpans(mBlurMaskFilterSpan)
-                .appendLine("阴影动画").setFontSize(64, true).setBackgroundColor(Color.BLACK).setSpans(mShadowSpan)
-                .appendLine("透明动画").setFontSize(64, true).setSpans(mForegroundAlphaColorSpan);
-        for (int i = 0, len = mPrinterString.length(); i < len; ++i) {
-            ForegroundAlphaColorSpan span = new ForegroundAlphaColorSpan(Color.TRANSPARENT);
-            mSpanUtils.append(mPrinterString.substring(i, i + 1)).setSpans(span);
-            mForegroundAlphaColorSpanGroup.addSpan(span);
-        }
-        animSsb = mSpanUtils.create();
-    }
-
-    private void startAnim() {
-        valueAnimator = ValueAnimator.ofFloat(0, 1);
-        valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
-            @Override
-            public void onAnimationUpdate(ValueAnimator animation) {
-                // shader
-                matrix.reset();
-                matrix.setTranslate((Float) animation.getAnimatedValue() * mShaderWidth, 0);
-                mShader.setLocalMatrix(matrix);
-
-                // blur
-                mBlurMaskFilterSpan.setRadius(25 * (1.00001f - (Float) animation.getAnimatedValue()));
-
-                // shadow
-                mShadowSpan.setDx(16 * (0.5f - (Float) animation.getAnimatedValue()));
-                mShadowSpan.setDy(16 * (0.5f - (Float) animation.getAnimatedValue()));
-
-                // alpha
-                mForegroundAlphaColorSpan.setAlpha((int) (255 * (Float) animation.getAnimatedValue()));
-
-                // printer
-                mForegroundAlphaColorSpanGroup.setAlpha((Float) animation.getAnimatedValue());
-
-                // update
-                tvAboutAnimSpan.setText(animSsb);
-            }
-        });
-
-        valueAnimator.setInterpolator(new LinearInterpolator());
-        valueAnimator.setDuration(600 * 3);
-        valueAnimator.setRepeatCount(ValueAnimator.INFINITE);
-        valueAnimator.start();
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    @Override
-    protected void onDestroy() {
-        if (valueAnimator != null && valueAnimator.isRunning()) {
-            valueAnimator.cancel();
-        }
-        super.onDestroy();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/CustomToast.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/CustomToast.java
deleted file mode 100644
index 5a2cf8a6e8..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/CustomToast.java
+++ /dev/null
@@ -1,88 +0,0 @@
-package com.blankj.androidutilcode.feature.core.toast;
-
-import android.os.Handler;
-import android.os.Looper;
-import android.support.annotation.NonNull;
-import android.support.annotation.StringRes;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.UtilsApp;
-import com.blankj.utilcode.util.ToastUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/31
- *     desc  : demo about ToastUtils
- * </pre>
- */
-public class CustomToast {
-
-    private static final Handler HANDLER = new Handler(Looper.getMainLooper());
-
-    public static void showShort(@NonNull final CharSequence text) {
-        show(text, Toast.LENGTH_SHORT);
-    }
-
-    public static void showShort(@StringRes final int resId) {
-        show(resId, Toast.LENGTH_SHORT);
-    }
-
-    public static void showShort(@StringRes final int resId, final Object... args) {
-        show(resId, Toast.LENGTH_SHORT, args);
-    }
-
-    public static void showShort(final String format, final Object... args) {
-        show(format, Toast.LENGTH_SHORT, args);
-    }
-
-    public static void showLong(@NonNull final CharSequence text) {
-        show(text, Toast.LENGTH_LONG);
-    }
-
-    public static void showLong(@StringRes final int resId) {
-        show(resId, Toast.LENGTH_LONG);
-    }
-
-    public static void showLong(@StringRes final int resId, final Object... args) {
-        show(resId, Toast.LENGTH_LONG, args);
-    }
-
-    public static void showLong(final String format, final Object... args) {
-        show(format, Toast.LENGTH_LONG, args);
-    }
-
-    private static void show(@StringRes final int resId, final int duration) {
-        show(UtilsApp.getInstance().getResources().getString(resId), duration);
-    }
-
-    private static void show(@StringRes final int resId, final int duration, final Object... args) {
-        show(String.format(UtilsApp.getInstance().getResources().getString(resId), args), duration);
-    }
-
-    private static void show(final String format, final int duration, final Object... args) {
-        show(String.format(format, args), duration);
-    }
-
-    private static void show(final CharSequence text, final int duration) {
-        HANDLER.post(new Runnable() {
-            @Override
-            public void run() {
-                TextView toastView;
-                if (duration == Toast.LENGTH_SHORT) {
-                    toastView = (TextView) ToastUtils.showCustomShort(R.layout.toast_custom);
-                } else {
-                    toastView = (TextView) ToastUtils.showCustomLong(R.layout.toast_custom);
-                }
-                toastView.setText(text);
-            }
-        });
-    }
-
-    public static void cancel() {
-        ToastUtils.cancel();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/ToastActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/ToastActivity.java
deleted file mode 100644
index cef8ded48f..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/ToastActivity.java
+++ /dev/null
@@ -1,135 +0,0 @@
-package com.blankj.androidutilcode.feature.core.toast;
-
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
-import android.view.Gravity;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.SpanUtils;
-import com.blankj.utilcode.util.ToastUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : demo about ToastUtils
- * </pre>
- */
-public class ToastActivity extends BaseBackActivity {
-
-    View toastView;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, ToastActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_toast;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_toast));
-
-        findViewById(R.id.btn_show_short_toast).setOnClickListener(this);
-        findViewById(R.id.btn_show_long_toast).setOnClickListener(this);
-        findViewById(R.id.btn_show_green_font).setOnClickListener(this);
-        findViewById(R.id.btn_show_bg_color).setOnClickListener(this);
-        findViewById(R.id.btn_show_bg_resource).setOnClickListener(this);
-        findViewById(R.id.btn_show_span).setOnClickListener(this);
-        findViewById(R.id.btn_show_custom_view).setOnClickListener(this);
-        findViewById(R.id.btn_show_middle).setOnClickListener(this);
-        findViewById(R.id.btn_cancel_toast).setOnClickListener(this);
-        toastView = findViewById(R.id.btn_cancel_toast);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        resetToast();
-        switch (view.getId()) {
-            case R.id.btn_show_short_toast:
-                new Thread(new Runnable() {
-                    @Override
-                    public void run() {
-                        ToastUtils.showShort(R.string.toast_short);
-                    }
-                }).start();
-                break;
-            case R.id.btn_show_long_toast:
-                new Thread(new Runnable() {
-                    @Override
-                    public void run() {
-                        ToastUtils.showLong(R.string.toast_long);
-                    }
-                }).start();
-                break;
-            case R.id.btn_show_green_font:
-                ToastUtils.setMsgColor(Color.GREEN);
-                ToastUtils.showLong(R.string.toast_green_font);
-                break;
-            case R.id.btn_show_bg_color:
-                ToastUtils.setBgColor(ContextCompat.getColor(this, R.color.colorAccent));
-                ToastUtils.showLong(R.string.toast_bg_color);
-                break;
-            case R.id.btn_show_bg_resource:
-                ToastUtils.setBgResource(R.drawable.toast_shape_round_rect);
-                ToastUtils.showLong(R.string.toast_custom_bg);
-                break;
-            case R.id.btn_show_span:
-                ToastUtils.showLong(new SpanUtils()
-                        .appendImage(R.mipmap.ic_launcher, SpanUtils.ALIGN_CENTER)
-                        .appendSpace(32)
-                        .append(getString(R.string.toast_span)).setFontSize(24, true)
-                        .create()
-                );
-                break;
-            case R.id.btn_show_custom_view:
-                new Thread(new Runnable() {
-                    @Override
-                    public void run() {
-                        CustomToast.showLong(R.string.toast_custom_view);
-                    }
-                }).start();
-                break;
-            case R.id.btn_show_middle:
-                ToastUtils.setGravity(Gravity.CENTER, 0, 0);
-                ToastUtils.showLong(R.string.toast_middle);
-                break;
-            case R.id.btn_cancel_toast:
-                ToastUtils.cancel();
-                break;
-        }
-    }
-
-    @Override
-    protected void onDestroy() {
-        resetToast();
-        super.onDestroy();
-    }
-
-    private void resetToast() {
-        ToastUtils.setMsgColor(0xFEFFFFFF);
-        ToastUtils.setBgColor(0xFEFFFFFF);
-        ToastUtils.setBgResource(-1);
-        ToastUtils.setGravity(Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, getResources().getDimensionPixelSize(R.dimen.offset_64));
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/sub/SubUtilActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/sub/SubUtilActivity.java
deleted file mode 100644
index ffca01e93f..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/sub/SubUtilActivity.java
+++ /dev/null
@@ -1,71 +0,0 @@
-package com.blankj.androidutilcode.feature.sub;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.feature.sub.brightness.BrightnessActivity;
-import com.blankj.androidutilcode.feature.sub.flashlight.FlashlightActivity;
-import com.blankj.androidutilcode.feature.sub.location.LocationActivity;
-import com.blankj.androidutilcode.feature.sub.pinyin.PinyinActivity;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : MainActivity
- * </pre>
- */
-public class SubUtilActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, SubUtilActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_util_sub;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.sub_util));
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    public void brightnessClick(View view) {
-        BrightnessActivity.start(this);
-    }
-
-    public void flashlightClick(View view) {
-        FlashlightActivity.start(this);
-    }
-
-    public void locationClick(View view) {
-        LocationActivity.start(this);
-    }
-
-    public void pinyinClick(View view) {
-        PinyinActivity.start(this);
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/sub/brightness/BrightnessActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/sub/brightness/BrightnessActivity.java
deleted file mode 100644
index f67e31fd3e..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/sub/brightness/BrightnessActivity.java
+++ /dev/null
@@ -1,155 +0,0 @@
-package com.blankj.androidutilcode.feature.sub.brightness;
-
-import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.provider.Settings;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.CompoundButton;
-import android.widget.SeekBar;
-import android.widget.TextView;
-import android.widget.ToggleButton;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseActivity;
-import com.blankj.subutil.util.BrightnessUtils;
-import com.blankj.subutil.util.Utils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/02/08
- *     desc  : demo about BrightnessUtils
- * </pre>
- */
-public class BrightnessActivity extends BaseActivity {
-
-    TextView     tvBrightness;
-    SeekBar      sbBrightness;
-    TextView     tvWindowBrightness;
-    SeekBar      sbWindowBrightness;
-    ToggleButton tbAutoBrightness;
-
-    private SeekBar.OnSeekBarChangeListener brightnessChangeListener
-            = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            BrightnessUtils.setBrightness(progress);
-            updateBrightness();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    private SeekBar.OnSeekBarChangeListener windowBrightnessChangeListener
-            = new SeekBar.OnSeekBarChangeListener() {
-        @Override
-        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-            BrightnessUtils.setWindowBrightness(getWindow(), progress);
-            updateWindowBrightness();
-        }
-
-        @Override
-        public void onStartTrackingTouch(SeekBar seekBar) {
-
-        }
-
-        @Override
-        public void onStopTrackingTouch(SeekBar seekBar) {
-
-        }
-    };
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, BrightnessActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_brightness;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        tvBrightness = findViewById(R.id.tv_brightness);
-        sbBrightness = findViewById(R.id.sb_brightness);
-        tvWindowBrightness = findViewById(R.id.tv_window_brightness);
-        sbWindowBrightness = findViewById(R.id.sb_window_brightness);
-        tbAutoBrightness = findViewById(R.id.tb_set_auto_brightness_enable);
-
-        sbBrightness.setProgress(BrightnessUtils.getBrightness());
-        sbBrightness.setOnSeekBarChangeListener(brightnessChangeListener);
-        updateBrightness();
-
-        sbWindowBrightness.setProgress(BrightnessUtils.getWindowBrightness(getWindow()));
-        sbWindowBrightness.setOnSeekBarChangeListener(windowBrightnessChangeListener);
-        updateWindowBrightness();
-
-        tbAutoBrightness.setChecked(BrightnessUtils.isAutoBrightnessEnabled());
-        tbAutoBrightness.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
-                        && !Settings.System.canWrite(Utils.getApp())) {
-                    Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS);
-                    intent.setData(Uri.parse("package:" + Utils.getApp().getPackageName()));
-                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-                    Utils.getApp().startActivity(intent);
-                }
-            }
-        });
-
-        tbAutoBrightness.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                boolean isSuccess = BrightnessUtils.setAutoBrightnessEnabled(isChecked);
-                if (!isSuccess) {
-                    tbAutoBrightness.toggle();
-                }
-            }
-        });
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    private void updateBrightness() {
-        tvBrightness.setText(new SpanUtils()
-                .append(String.valueOf(BrightnessUtils.getBrightness()))
-                .create()
-        );
-    }
-
-    private void updateWindowBrightness() {
-        tvWindowBrightness.setText(new SpanUtils()
-                .append(String.valueOf(BrightnessUtils.getWindowBrightness(getWindow())))
-                .create()
-        );
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/sub/flashlight/FlashlightActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/sub/flashlight/FlashlightActivity.java
deleted file mode 100644
index 0e30a98910..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/sub/flashlight/FlashlightActivity.java
+++ /dev/null
@@ -1,99 +0,0 @@
-package com.blankj.androidutilcode.feature.sub.flashlight;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.androidutilcode.helper.PermissionHelper;
-import com.blankj.subutil.util.FlashlightUtils;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/04/27
- *     desc  : demo about FlashlightUtils
- * </pre>
- */
-public class FlashlightActivity extends BaseBackActivity {
-
-    TextView tvAboutFlashlight;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, FlashlightActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_flashlight;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        tvAboutFlashlight = findViewById(R.id.tv_about_flashlight);
-        findViewById(R.id.btn_set_flashlight_on).setOnClickListener(this);
-        findViewById(R.id.btn_set_flashlight_off).setOnClickListener(this);
-    }
-
-    @Override
-    public void doBusiness() {
-        if (FlashlightUtils.isFlashlightEnable()) {
-            FlashlightUtils.getInstance().register();
-        }
-        updateAboutFlashlight();
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-        if (!FlashlightUtils.isFlashlightEnable()) return;
-        switch (view.getId()) {
-            case R.id.btn_set_flashlight_on:
-                PermissionHelper.requestCamera(new PermissionHelper.OnPermissionGrantedListener() {
-                    @Override
-                    public void onPermissionGranted() {
-                        FlashlightUtils.getInstance().setFlashlightOn();
-                    }
-                });
-                break;
-            case R.id.btn_set_flashlight_off:
-                PermissionHelper.requestCamera(new PermissionHelper.OnPermissionGrantedListener() {
-                    @Override
-                    public void onPermissionGranted() {
-                        FlashlightUtils.getInstance().setFlashlightOff();
-                    }
-                });
-                break;
-        }
-        updateAboutFlashlight();
-    }
-
-    @Override
-    protected void onDestroy() {
-        FlashlightUtils.getInstance().unregister();
-        super.onDestroy();
-    }
-
-    private void updateAboutFlashlight() {
-        PermissionHelper.requestCamera(new PermissionHelper.OnPermissionGrantedListener() {
-            @Override
-            public void onPermissionGranted() {
-                tvAboutFlashlight.setText(new SpanUtils()
-                        .appendLine("isFlashlightEnable: " + FlashlightUtils.isFlashlightEnable())
-                        .appendLine("isFlashlightOn: " + FlashlightUtils.getInstance().isFlashlightOn())
-                        .create());
-            }
-        });
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationActivity.java
deleted file mode 100755
index 6d4636addb..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationActivity.java
+++ /dev/null
@@ -1,109 +0,0 @@
-package com.blankj.androidutilcode.feature.sub.location;
-
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.ServiceConnection;
-import android.os.Bundle;
-import android.os.IBinder;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.utilcode.util.SpanUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/13
- *     desc  : demo about LocationUtils
- * </pre>
- */
-public class LocationActivity extends BaseBackActivity {
-
-    TextView        tvAboutLocation;
-    LocationService mLocationService;
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, LocationActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_location;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_location));
-
-        tvAboutLocation = findViewById(R.id.tv_about_location);
-        tvAboutLocation.setText(new SpanUtils()
-                .appendLine("lastLatitude: unknown")
-                .appendLine("lastLongitude: unknown")
-                .appendLine("latitude: unknown")
-                .appendLine("longitude: unknown")
-                .appendLine("getCountryName: unknown")
-                .appendLine("getLocality: unknown")
-                .appendLine("getStreet: unknown")
-                .create()
-        );
-    }
-
-    @Override
-    public void doBusiness() {
-        bindService(new Intent(this, LocationService.class), conn, Context.BIND_AUTO_CREATE);
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    @Override
-    protected void onDestroy() {
-        unbindService(conn);
-        super.onDestroy();
-    }
-
-    ServiceConnection conn = new ServiceConnection() {
-        @Override
-        public void onServiceDisconnected(ComponentName name) {
-
-        }
-
-        @Override
-        public void onServiceConnected(ComponentName name, IBinder service) {
-            mLocationService = ((LocationService.LocationBinder) service).getService();
-            mLocationService.setOnGetLocationListener(new LocationService.OnGetLocationListener() {
-                @Override
-                public void getLocation(final String lastLatitude, final String lastLongitude, final String latitude, final String longitude, final String country, final String locality, final String street) {
-                    runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            tvAboutLocation.setText(new SpanUtils()
-                                    .appendLine("lastLatitude: " + lastLatitude)
-                                    .appendLine("lastLongitude: " + lastLongitude)
-                                    .appendLine("latitude: " + latitude)
-                                    .appendLine("longitude: " + longitude)
-                                    .appendLine("getCountryName: " + country)
-                                    .appendLine("getLocality: " + locality)
-                                    .appendLine("getStreet: " + street)
-                                    .create()
-                            );
-                        }
-                    });
-                }
-            });
-        }
-    };
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationService.java b/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationService.java
deleted file mode 100755
index fd4549f72e..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationService.java
+++ /dev/null
@@ -1,120 +0,0 @@
-package com.blankj.androidutilcode.feature.sub.location;
-
-import android.app.Service;
-import android.content.Intent;
-import android.location.Location;
-import android.os.Binder;
-import android.os.Bundle;
-import android.os.IBinder;
-import android.os.Looper;
-import android.support.annotation.Nullable;
-
-import com.blankj.androidutilcode.helper.PermissionHelper;
-import com.blankj.subutil.util.LocationUtils;
-import com.blankj.utilcode.util.ToastUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/11/21
- *     desc  : demo about LocationUtils
- * </pre>
- */
-public class LocationService extends Service {
-
-    private boolean               isSuccess;
-    private String                lastLatitude  = "loading...";
-    private String                lastLongitude = "loading...";
-    private String                latitude      = "loading...";
-    private String                longitude     = "loading...";
-    private String                country       = "loading...";
-    private String                locality      = "loading...";
-    private String                street        = "loading...";
-    private OnGetLocationListener mOnGetLocationListener;
-
-    public void setOnGetLocationListener(OnGetLocationListener onGetLocationListener) {
-        mOnGetLocationListener = onGetLocationListener;
-    }
-
-    private LocationUtils.OnLocationChangeListener mOnLocationChangeListener = new LocationUtils.OnLocationChangeListener() {
-        @Override
-        public void getLastKnownLocation(Location location) {
-            lastLatitude = String.valueOf(location.getLatitude());
-            lastLongitude = String.valueOf(location.getLongitude());
-            if (mOnGetLocationListener != null) {
-                mOnGetLocationListener.getLocation(lastLatitude, lastLongitude, latitude, longitude, country, locality, street);
-            }
-        }
-
-        @Override
-        public void onLocationChanged(final Location location) {
-            latitude = String.valueOf(location.getLatitude());
-            longitude = String.valueOf(location.getLongitude());
-            if (mOnGetLocationListener != null) {
-                mOnGetLocationListener.getLocation(lastLatitude, lastLongitude, latitude, longitude, country, locality, street);
-            }
-            country = LocationUtils.getCountryName(Double.parseDouble(latitude), Double.parseDouble(longitude));
-            locality = LocationUtils.getLocality(Double.parseDouble(latitude), Double.parseDouble(longitude));
-            street = LocationUtils.getStreet(Double.parseDouble(latitude), Double.parseDouble(longitude));
-            if (mOnGetLocationListener != null) {
-                mOnGetLocationListener.getLocation(lastLatitude, lastLongitude, latitude, longitude, country, locality, street);
-            }
-        }
-
-        @Override
-        public void onStatusChanged(String provider, int status, Bundle extras) {
-
-        }
-    };
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        PermissionHelper.requestLocation(new PermissionHelper.OnPermissionGrantedListener() {
-            @Override
-            public void onPermissionGranted() {
-                new Thread(new Runnable() {
-                    @Override
-                    public void run() {
-                        Looper.prepare();
-                        isSuccess = LocationUtils.register(0, 0, mOnLocationChangeListener);
-                        if (isSuccess) ToastUtils.showShort("init success");
-                        Looper.loop();
-                    }
-                }).start();
-            }
-        });
-    }
-
-    @Nullable
-    @Override
-    public IBinder onBind(Intent intent) {
-        return new LocationBinder();
-    }
-
-    public class LocationBinder extends Binder {
-        public LocationService getService() {
-            return LocationService.this;
-        }
-    }
-
-    @Override
-    public void onDestroy() {
-        LocationUtils.unregister();
-        // 一定要制空，否则内存泄漏
-        mOnGetLocationListener = null;
-        super.onDestroy();
-    }
-
-    /**
-     * 获取位置监听器
-     */
-    public interface OnGetLocationListener {
-        void getLocation(
-                String lastLatitude, String lastLongitude,
-                String latitude, String longitude,
-                String country, String locality, String street
-        );
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/feature/sub/pinyin/PinyinActivity.java b/app/src/main/java/com/blankj/androidutilcode/feature/sub/pinyin/PinyinActivity.java
deleted file mode 100644
index d600d20a9c..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/feature/sub/pinyin/PinyinActivity.java
+++ /dev/null
@@ -1,75 +0,0 @@
-package com.blankj.androidutilcode.feature.sub.pinyin;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.View;
-import android.widget.TextView;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.androidutilcode.base.BaseBackActivity;
-import com.blankj.subutil.util.PinyinUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 17/02/01
- *     desc  : demo about PinyinUtils
- * </pre>
- */
-public class PinyinActivity extends BaseBackActivity {
-
-    public static void start(Context context) {
-        Intent starter = new Intent(context, PinyinActivity.class);
-        context.startActivity(starter);
-    }
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_pinyin;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        getToolBar().setTitle(getString(R.string.demo_pinyin));
-
-        TextView tvAboutPinyin = findViewById(R.id.tv_about_pinyin);
-
-        String surnames = "乐乘乜仇会便区单参句召员宓弗折曾朴查洗盖祭种秘繁缪能蕃覃解谌适都阿难黑";
-        int size = surnames.length();
-        StringBuilder sb = new StringBuilder("汉字转拼音: " + PinyinUtils.ccs2Pinyin("汉字转拼音", " ")
-                + "\n获取首字母: " + PinyinUtils.getPinyinFirstLetters("获取首字母", " ")
-                + "\n\n测试姓氏"
-                + "\n澹台: " + PinyinUtils.getSurnamePinyin("澹台")
-                + "\n尉迟: " + PinyinUtils.getSurnamePinyin("尉迟")
-                + "\n万俟: " + PinyinUtils.getSurnamePinyin("万俟")
-                + "\n单于: " + PinyinUtils.getSurnamePinyin("单于"));
-        for (int i = 0; i < size; ++i) {
-            String surname = String.valueOf(surnames.charAt(i));
-            sb.append(String.format(
-                    "\n%s 正确: %-6s 错误: %-6s",
-                    surname,
-                    PinyinUtils.getSurnamePinyin(surname),
-                    PinyinUtils.ccs2Pinyin(surname)
-            ));
-        }
-        tvAboutPinyin.setText(sb.toString());
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/helper/DialogHelper.java b/app/src/main/java/com/blankj/androidutilcode/helper/DialogHelper.java
deleted file mode 100644
index 1118ac8f99..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/helper/DialogHelper.java
+++ /dev/null
@@ -1,129 +0,0 @@
-package com.blankj.androidutilcode.helper;
-
-import android.app.Activity;
-import android.content.DialogInterface;
-import android.support.v7.app.AlertDialog;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.widget.EditText;
-
-import com.blankj.androidutilcode.R;
-import com.blankj.utilcode.util.ActivityUtils;
-import com.blankj.utilcode.util.KeyboardUtils;
-import com.blankj.utilcode.util.PermissionUtils;
-import com.blankj.utilcode.util.PermissionUtils.OnRationaleListener.ShouldRequest;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/10
- *     desc  : helper about dialog
- * </pre>
- */
-public class DialogHelper {
-
-    public static void showRationaleDialog(final ShouldRequest shouldRequest) {
-        Activity topActivity = ActivityUtils.getTopActivity();
-        if (topActivity == null) return;
-        new AlertDialog.Builder(topActivity)
-                .setTitle(android.R.string.dialog_alert_title)
-                .setMessage(R.string.permission_rationale_message)
-                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                        shouldRequest.again(true);
-                    }
-                })
-                .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                        shouldRequest.again(false);
-                    }
-                })
-                .setCancelable(false)
-                .create()
-                .show();
-
-    }
-
-    public static void showOpenAppSettingDialog() {
-        Activity topActivity = ActivityUtils.getTopActivity();
-        if (topActivity == null) return;
-        new AlertDialog.Builder(topActivity)
-                .setTitle(android.R.string.dialog_alert_title)
-                .setMessage(R.string.permission_denied_forever_message)
-                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                        PermissionUtils.launchAppDetailsSettings();
-                    }
-                })
-                .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-
-                    }
-                })
-                .setCancelable(false)
-                .create()
-                .show();
-    }
-
-    public static void showAdaptScreenDialog() {
-        Activity topActivity = ActivityUtils.getTopActivity();
-        if (topActivity == null) return;
-        new AlertDialog.Builder(topActivity)
-                .setTitle(android.R.string.dialog_alert_title)
-                .setMessage("Message!")
-                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-
-                    }
-                })
-                .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-
-                    }
-                })
-                .setCancelable(false)
-                .create()
-                .show();
-    }
-
-    public static void showKeyboardDialog() {
-        Activity topActivity = ActivityUtils.getTopActivity();
-        if (topActivity == null) return;
-        final View dialogView = LayoutInflater.from(topActivity).inflate(R.layout.dialog_keyboard, null);
-        final EditText etInput = dialogView.findViewById(R.id.et_input);
-        final AlertDialog dialog = new AlertDialog.Builder(topActivity).setView(dialogView).create();
-        dialog.setCanceledOnTouchOutside(false);
-        View.OnClickListener listener = new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                switch (v.getId()) {
-                    case R.id.btn_hide_soft_input:
-                        KeyboardUtils.hideSoftInput(etInput);
-                        break;
-                    case R.id.btn_show_soft_input:
-                        KeyboardUtils.showSoftInput(etInput);
-                        break;
-                    case R.id.btn_toggle_soft_input:
-                        KeyboardUtils.toggleSoftInput();
-                        break;
-                    case R.id.btn_close_dialog:
-                        KeyboardUtils.hideSoftInput(etInput);
-                        dialog.dismiss();
-                        break;
-                }
-            }
-        };
-        dialogView.findViewById(R.id.btn_hide_soft_input).setOnClickListener(listener);
-        dialogView.findViewById(R.id.btn_show_soft_input).setOnClickListener(listener);
-        dialogView.findViewById(R.id.btn_toggle_soft_input).setOnClickListener(listener);
-        dialogView.findViewById(R.id.btn_close_dialog).setOnClickListener(listener);
-        dialog.show();
-    }
-}
diff --git a/app/src/main/java/com/blankj/androidutilcode/helper/PermissionHelper.java b/app/src/main/java/com/blankj/androidutilcode/helper/PermissionHelper.java
deleted file mode 100644
index 1012a4392d..0000000000
--- a/app/src/main/java/com/blankj/androidutilcode/helper/PermissionHelper.java
+++ /dev/null
@@ -1,89 +0,0 @@
-package com.blankj.androidutilcode.helper;
-
-import com.blankj.utilcode.constant.PermissionConstants;
-import com.blankj.utilcode.util.LogUtils;
-import com.blankj.utilcode.util.PermissionUtils;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/06
- *     desc  : helper about permission
- * </pre>
- */
-public class PermissionHelper {
-
-    public static void requestCamera(final OnPermissionGrantedListener listener) {
-        request(listener, PermissionConstants.CAMERA);
-    }
-
-    public static void requestStorage(final OnPermissionGrantedListener listener) {
-        request(listener, PermissionConstants.STORAGE);
-    }
-
-    public static void requestPhone(final OnPermissionGrantedListener listener) {
-        request(listener, PermissionConstants.PHONE);
-    }
-
-    public static void requestPhone(final OnPermissionGrantedListener grantedListener,
-                                    final OnPermissionDeniedListener deniedListener) {
-        request(grantedListener, deniedListener, PermissionConstants.PHONE);
-    }
-
-    public static void requestSms(final OnPermissionGrantedListener listener) {
-        request(listener, PermissionConstants.SMS);
-    }
-
-    public static void requestLocation(final OnPermissionGrantedListener listener) {
-        request(listener, PermissionConstants.LOCATION);
-    }
-
-    private static void request(final OnPermissionGrantedListener grantedListener,
-                                final @PermissionConstants.Permission String... permissions) {
-        request(grantedListener, null, permissions);
-    }
-
-    private static void request(final OnPermissionGrantedListener grantedListener,
-                                final OnPermissionDeniedListener deniedListener,
-                                final @PermissionConstants.Permission String... permissions) {
-        PermissionUtils.permission(permissions)
-                .rationale(new PermissionUtils.OnRationaleListener() {
-                    @Override
-                    public void rationale(ShouldRequest shouldRequest) {
-                        DialogHelper.showRationaleDialog(shouldRequest);
-                    }
-                })
-                .callback(new PermissionUtils.FullCallback() {
-                    @Override
-                    public void onGranted(List<String> permissionsGranted) {
-                        if (grantedListener != null) {
-                            grantedListener.onPermissionGranted();
-                        }
-                        LogUtils.d(permissionsGranted);
-                    }
-
-                    @Override
-                    public void onDenied(List<String> permissionsDeniedForever, List<String> permissionsDenied) {
-                        if (!permissionsDeniedForever.isEmpty()) {
-                            DialogHelper.showOpenAppSettingDialog();
-                        }
-                        if (deniedListener != null) {
-                            deniedListener.onPermissionDenied();
-                        }
-                        LogUtils.d(permissionsDeniedForever, permissionsDenied);
-                    }
-                })
-                .request();
-    }
-
-    public interface OnPermissionGrantedListener {
-        void onPermissionGranted();
-    }
-
-    public interface OnPermissionDeniedListener {
-        void onPermissionDenied();
-    }
-}
diff --git a/app/src/main/res-core/drawable/bar_status_alpha_bg.png b/app/src/main/res-core/drawable/bar_status_alpha_bg.png
deleted file mode 100644
index ab8065f49a..0000000000
Binary files a/app/src/main/res-core/drawable/bar_status_alpha_bg.png and /dev/null differ
diff --git a/app/src/main/res-core/drawable/bar_status_custom.xml b/app/src/main/res-core/drawable/bar_status_custom.xml
deleted file mode 100644
index 16e56b7144..0000000000
--- a/app/src/main/res-core/drawable/bar_status_custom.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <gradient
-        android:angle="90"
-        android:endColor="@color/colorPrimaryDark"
-        android:startColor="@color/colorPrimary" />
-
-</shape>
\ No newline at end of file
diff --git a/app/src/main/res-core/drawable/bar_status_nav_custom.xml b/app/src/main/res-core/drawable/bar_status_nav_custom.xml
deleted file mode 100644
index be01a22d9b..0000000000
--- a/app/src/main/res-core/drawable/bar_status_nav_custom.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="1024"
-    android:viewportHeight="1024">
-
-    <path
-        android:fillColor="#000000"
-        android:pathData="M811.008 335.872c-2.048-7.168-11.264-9.216-17.408-4.096L690.176 435.2c-8.192
-8.192-20.48 8.192-28.672 0l-72.704-72.704c-8.192-8.192-8.192-20.48
-0-28.672l104.448-104.448c5.12-5.12
-3.072-14.336-4.096-17.408-17.408-4.096-35.84-7.168-54.272-7.168-108.544
-0-195.584 94.208-183.296 204.8 2.048 17.408 6.144 32.768 12.288 48.128L225.28
-697.344c-27.648 27.648-27.648 73.728 0 101.376 14.336 14.336 32.768 21.504 51.2
-21.504s36.864-7.168 51.2-21.504l238.592-238.592c15.36 6.144 31.744 10.24 48.128
-12.288 111.616 12.288 204.8-74.752 204.8-183.296
-0-18.432-3.072-36.864-8.192-53.248z" />
-</vector>
\ No newline at end of file
diff --git a/app/src/main/res-core/drawable/image_lena.png b/app/src/main/res-core/drawable/image_lena.png
deleted file mode 100644
index fa49ea640b..0000000000
Binary files a/app/src/main/res-core/drawable/image_lena.png and /dev/null differ
diff --git a/app/src/main/res-core/layout-land/activity_screen_adapt.xml b/app/src/main/res-core/layout-land/activity_screen_adapt.xml
deleted file mode 100644
index 8cdb4055fd..0000000000
--- a/app/src/main/res-core/layout-land/activity_screen_adapt.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:ignore="MissingDefaultResource">
-
-    <RelativeLayout
-        android:layout_width="2000dp"
-        android:layout_height="match_parent">
-
-        <TextView
-            android:id="@+id/tv_up"
-            style="@style/TextStyle"
-            android:layout_width="2000dp"
-            android:layout_height="360dp"
-            android:layout_alignParentTop="true"
-            android:background="@color/colorAccentHalfTrans"
-            android:gravity="center_vertical"
-            android:text="360dp" />
-
-        <TextView
-            android:id="@+id/tv_down"
-            style="@style/TextStyle"
-            android:layout_width="2000dp"
-            android:layout_height="360dp"
-            android:layout_alignParentBottom="true"
-            android:background="@color/colorPrimaryHalfTrans"
-            android:gravity="center_vertical"
-            android:text="360dp" />
-
-    </RelativeLayout>
-</HorizontalScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout-port/activity_screen_adapt.xml b/app/src/main/res-core/layout-port/activity_screen_adapt.xml
deleted file mode 100644
index 95992c8c97..0000000000
--- a/app/src/main/res-core/layout-port/activity_screen_adapt.xml
+++ /dev/null
@@ -1,70 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:ignore="MissingDefaultResource">
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="2000dp">
-
-        <LinearLayout
-            android:id="@+id/ll_container"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="vertical">
-
-            <Button
-                android:id="@+id/btn_show_system_toast"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_system_toast" />
-
-            <Button
-                android:id="@+id/btn_show_util_toast"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_util_toast" />
-
-            <Button
-                android:id="@+id/btn_system_dialog"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_system_dialog" />
-
-            <Button
-                android:id="@+id/btn_system_dialog_without_adapt"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_system_dialog_without_adapt" />
-
-        </LinearLayout>
-
-        <TextView
-            style="@style/TextStyle"
-            android:layout_width="360dp"
-            android:layout_height="2000dp"
-            android:layout_alignParentLeft="true"
-            android:layout_below="@id/ll_container"
-            android:background="@color/colorAccentHalfTrans"
-            android:gravity="center_horizontal"
-            android:text="360dp" />
-
-        <TextView
-            style="@style/TextStyle"
-            android:layout_width="360dp"
-            android:layout_height="2000dp"
-            android:layout_alignParentRight="true"
-            android:layout_below="@id/ll_container"
-            android:background="@color/colorPrimaryHalfTrans"
-            android:gravity="center_horizontal"
-            android:text="360dp" />
-
-    </RelativeLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_activity.xml b/app/src/main/res-core/layout/activity_activity.xml
deleted file mode 100644
index 8057bdf6db..0000000000
--- a/app/src/main/res-core/layout/activity_activity.xml
+++ /dev/null
@@ -1,219 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <ImageView
-        android:id="@+id/view_shared_element"
-        android:layout_width="@dimen/size_40"
-        android:layout_height="@dimen/size_40"
-        android:src="@drawable/main_avatar_round"
-        android:transitionName="@string/activity_shared_element" />
-
-    <TextView
-        android:id="@+id/tv_about_activity"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_clz"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_clz" />
-
-    <Button
-        android:id="@+id/btn_clz_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_clz_opt" />
-
-    <Button
-        android:id="@+id/btn_clz_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_clz_anim" />
-
-    <Button
-        android:id="@+id/btn_act_clz"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz" />
-
-    <Button
-        android:id="@+id/btn_act_clz_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz_opt" />
-
-    <Button
-        android:id="@+id/btn_act_clz_shared_element"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz_shared_element" />
-
-    <Button
-        android:id="@+id/btn_act_clz_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz_anim" />
-
-    <Button
-        android:id="@+id/btn_pkg_cls"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_pkg_cls" />
-
-    <Button
-        android:id="@+id/btn_pkg_cls_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_pkg_cls_opt" />
-
-    <Button
-        android:id="@+id/btn_pkg_cls_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_pkg_cls_anim" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls_opt" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls_shared_element"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls_shared_element" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls_anim" />
-
-    <Button
-        android:id="@+id/btn_intent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent" />
-
-    <Button
-        android:id="@+id/btn_intent_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent_opt" />
-
-    <Button
-        android:id="@+id/btn_intent_shared_element"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent_shared_element" />
-
-    <Button
-        android:id="@+id/btn_intent_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent_anim" />
-
-    <Button
-        android:id="@+id/btn_intents"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intents" />
-
-    <Button
-        android:id="@+id/btn_intents_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intents_opt" />
-
-    <Button
-        android:id="@+id/btn_intents_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intents_anim" />
-
-    <Button
-        android:id="@+id/btn_act_intents"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_intents" />
-
-    <Button
-        android:id="@+id/btn_act_intents_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_intents_opt" />
-
-    <Button
-        android:id="@+id/btn_act_intents_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_intents_anim" />
-
-    <Button
-        android:id="@+id/btn_start_home_activity"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_start_home_activity" />
-
-    <Button
-        android:id="@+id/btn_finish_activity"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_finish_activity" />
-
-    <Button
-        android:id="@+id/btn_finish_to_activity"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_finish_to_activity" />
-
-    <Button
-        android:id="@+id/btn_finish_all_activities"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_finish_all_activities" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_activity_sub.xml b/app/src/main/res-core/layout/activity_activity_sub.xml
deleted file mode 100644
index fe518ab2d0..0000000000
--- a/app/src/main/res-core/layout/activity_activity_sub.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/ll_root"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    android:padding="@dimen/spacing_16">
-
-    <ImageView
-        android:id="@+id/view_shared_element"
-        android:layout_width="@dimen/size_160"
-        android:layout_height="@dimen/size_160"
-        android:src="@drawable/main_avatar_round"
-        android:transitionName="@string/activity_shared_element" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_adapt_close.xml b/app/src/main/res-core/layout/activity_adapt_close.xml
deleted file mode 100644
index c33fa1c293..0000000000
--- a/app/src/main/res-core/layout/activity_adapt_close.xml
+++ /dev/null
@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:context=".feature.core.adaptScreen.CloseAdaptActivity">
-
-    <android.support.constraint.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <TextView
-            android:id="@+id/closeTvTip"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center"
-            android:text="Close Adapt\npt equals dp"
-            android:textColor="@android:color/black"
-            android:textSize="30sp" />
-
-        <TextView
-            android:id="@+id/closeTv0"
-            android:layout_width="match_parent"
-            android:layout_height="200dp"
-            android:background="@color/colorAccentOrigin"
-            android:gravity="center"
-            android:text="Height: 200dp\nFont: 30dp"
-            android:textColor="@android:color/black"
-            android:textSize="30dp"
-            app:layout_constraintTop_toBottomOf="@id/closeTvTip" />
-
-        <TextView
-            android:layout_width="match_parent"
-            android:layout_height="200pt"
-            android:background="@color/colorPrimaryOrigin"
-            android:gravity="center"
-            android:text="Height: 200pt\nFont: 30pt"
-            android:textColor="@android:color/black"
-            android:textSize="30pt"
-            app:layout_constraintTop_toBottomOf="@id/closeTv0" />
-
-    </android.support.constraint.ConstraintLayout>
-
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_adapt_height.xml b/app/src/main/res-core/layout/activity_adapt_height.xml
deleted file mode 100644
index 1e234a46c2..0000000000
--- a/app/src/main/res-core/layout/activity_adapt_height.xml
+++ /dev/null
@@ -1,99 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<HorizontalScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:context=".feature.core.adaptScreen.HeightActivity">
-
-    <android.support.constraint.ConstraintLayout
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent">
-
-        <FrameLayout
-            android:id="@+id/heightFl0"
-            android:layout_width="360pt"
-            android:layout_height="match_parent"
-            android:background="@color/colorPrimaryOrigin">
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="960pt"
-                android:layout_gravity="top"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Height: 960pt\nFont: 30pt"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="960pt"
-                android:layout_gravity="bottom"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="Height: 960pt\nFont: 30sp"
-                android:textSize="30sp" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/heightFl1"
-            android:layout_width="360pt"
-            android:layout_height="1920pt"
-            app:layout_constraintLeft_toRightOf="@id/heightFl0">
-
-            <WebView
-                android:id="@+id/heightVebView"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:gravity="center"
-                android:text="WebView\nHeight: 1920pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <LinearLayout
-            android:layout_width="360pt"
-            android:layout_height="match_parent"
-            android:orientation="vertical"
-            app:layout_constraintLeft_toRightOf="@id/heightFl1">
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="320pt"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="1\nHeight: 320pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="640pt"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="2\nHeight: 640pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="960pt"
-                android:background="@color/colorPrimaryDarkOrigin"
-                android:gravity="center"
-                android:text="3\nHeight: 960pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-        </LinearLayout>
-
-
-    </android.support.constraint.ConstraintLayout>
-
-</HorizontalScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_adapt_screen.xml b/app/src/main/res-core/layout/activity_adapt_screen.xml
deleted file mode 100644
index 162c6eda6b..0000000000
--- a/app/src/main/res-core/layout/activity_adapt_screen.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:padding="16dp"
-    tools:context=".feature.core.adaptScreen.AdaptScreenActivity">
-
-    <Button
-        android:id="@+id/adaptWidthBtn"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Adapt Width" />
-
-    <Button
-        android:id="@+id/adaptHeightBtn"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Adapt Height"
-        app:layout_constraintTop_toBottomOf="@id/adaptWidthBtn" />
-
-    <Button
-        android:id="@+id/closeAdaptBtn"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Close Adapt pt equals dp"
-        app:layout_constraintTop_toBottomOf="@id/adaptHeightBtn" />
-
-</android.support.constraint.ConstraintLayout>
diff --git a/app/src/main/res-core/layout/activity_adapt_width.xml b/app/src/main/res-core/layout/activity_adapt_width.xml
deleted file mode 100644
index 38c81a9acb..0000000000
--- a/app/src/main/res-core/layout/activity_adapt_width.xml
+++ /dev/null
@@ -1,153 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:context=".feature.core.adaptScreen.WidthActivity">
-
-    <android.support.constraint.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <FrameLayout
-            android:id="@+id/widthFl0"
-            android:layout_width="match_parent"
-            android:layout_height="270pt"
-            app:layout_constraintLeft_toLeftOf="parent">
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="start"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Width: 540pt\nFont: 30pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="end"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="Width: 540pt\nFont: 30sp"
-                android:textColor="@android:color/black"
-                android:textSize="30sp" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/widthFl1"
-            android:layout_width="1080pt"
-            android:layout_height="270pt"
-            app:layout_constraintTop_toBottomOf="@id/widthFl0">
-
-            <WebView
-                android:id="@+id/widthVebView"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:gravity="center"
-                android:text="WebView\nWidth: 1080pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/widthFl2"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@id/widthFl1">
-
-            <ImageView
-                android:layout_width="540pt"
-                android:layout_height="wrap_content"
-                android:layout_gravity="start"
-                android:adjustViewBounds="true"
-                android:src="@drawable/image_lena" />
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="center_vertical|end"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Left ImageView\nWidth: 540pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/widthFl3"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@id/widthFl2">
-
-            <ImageView
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="start"
-                android:adjustViewBounds="true"
-                android:src="@drawable/image_lena" />
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="center_vertical|end"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Left ImageView\nWidth: wrap_content"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <LinearLayout
-            android:id="@+id/widthLl0"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@id/widthFl3">
-
-            <TextView
-                android:layout_width="180pt"
-                android:layout_height="270pt"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="1\nWidth: 180pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:id="@+id/width2Tv"
-                android:layout_width="360pt"
-                android:layout_height="270pt"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="2\nWidth: 360pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:id="@+id/width3Tv"
-                android:layout_width="540pt"
-                android:layout_height="270pt"
-                android:background="@color/colorPrimaryDarkOrigin"
-                android:gravity="center"
-                android:text="3\nWidth: 540pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </LinearLayout>
-
-    </android.support.constraint.ConstraintLayout>
-
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_app.xml b/app/src/main/res-core/layout/activity_app.xml
deleted file mode 100644
index 34565cad80..0000000000
--- a/app/src/main/res-core/layout/activity_app.xml
+++ /dev/null
@@ -1,72 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_app"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_install_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_install" />
-
-    <Button
-        android:id="@+id/btn_install_app_silent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_install_silent" />
-
-    <Button
-        android:id="@+id/btn_uninstall_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_uninstall" />
-
-    <Button
-        android:id="@+id/btn_uninstall_app_silent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_uninstall_silent" />
-
-    <Button
-        android:id="@+id/btn_launch_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_launch" />
-
-    <Button
-        android:id="@+id/btn_relaunch_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_relaunch" />
-
-    <Button
-        android:id="@+id/btn_launch_app_details_settings"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_launch_details_settings" />
-
-    <Button
-        android:id="@+id/btn_exit_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_exit" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_bar.xml b/app/src/main/res-core/layout/activity_bar.xml
deleted file mode 100644
index b8ff446b81..0000000000
--- a/app/src/main/res-core/layout/activity_bar.xml
+++ /dev/null
@@ -1,96 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:text="@string/bar_about_status_bar" />
-
-    <Button
-        android:id="@+id/btn_status_bar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_about" />
-
-    <Button
-        android:id="@+id/btn_status_bar_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_color" />
-
-    <Button
-        android:id="@+id/btn_status_bar_alpha"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_alpha" />
-
-    <Button
-        android:id="@+id/btn_status_bar_image_view"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_image_view" />
-
-    <Button
-        android:id="@+id/btn_status_bar_fragment"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_fragment" />
-
-    <Button
-        android:id="@+id/btn_status_bar_swipe_back"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_swipe_back" />
-
-    <Button
-        android:id="@+id/btn_status_bar_drawer"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_drawer" />
-
-    <TextView
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/spacing_16"
-        android:gravity="center_horizontal"
-        android:text="@string/bar_about_notification_bar" />
-
-    <Button
-        android:id="@+id/btn_notification_bar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_notification_about" />
-
-    <TextView
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/spacing_16"
-        android:gravity="center_horizontal"
-        android:text="@string/bar_about_nav_bar" />
-
-    <Button
-        android:id="@+id/btn_nav_bar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_about" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_bar_nav.xml b/app/src/main/res-core/layout/activity_bar_nav.xml
deleted file mode 100644
index 0fff66ca6e..0000000000
--- a/app/src/main/res-core/layout/activity_bar_nav.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_nav"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_nav_show"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_show" />
-
-    <Button
-        android:id="@+id/btn_nav_hide"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_hide" />
-
-    <Button
-        android:id="@+id/btn_nav_set_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_color" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_bar_notification.xml b/app/src/main/res-core/layout/activity_bar_notification.xml
deleted file mode 100644
index 29db9299da..0000000000
--- a/app/src/main/res-core/layout/activity_bar_notification.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_show_notification"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_notification_show" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_bar_status.xml b/app/src/main/res-core/layout/activity_bar_status.xml
deleted file mode 100644
index ffe0cd467a..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_status"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_show_status"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_show" />
-
-    <Button
-        android:id="@+id/btn_hide_status"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_hide" />
-
-    <Button
-        android:id="@+id/btn_light_mode"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_light_mode" />
-
-    <Button
-        android:id="@+id/btn_dark_mode"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_dark_mode" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_bar_status_alpha.xml b/app/src/main/res-core/layout/activity_bar_status_alpha.xml
deleted file mode 100644
index 9198fa9bc8..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status_alpha.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@drawable/bar_status_alpha_bg">
-
-    <LinearLayout
-        android:id="@+id/ll_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</ScrollView>
diff --git a/app/src/main/res-core/layout/activity_bar_status_color.xml b/app/src/main/res-core/layout/activity_bar_status_color.xml
deleted file mode 100644
index 16157979ce..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status_color.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_random_color"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_random_color" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</ScrollView>
diff --git a/app/src/main/res-core/layout/activity_bar_status_drawer.xml b/app/src/main/res-core/layout/activity_bar_status_drawer.xml
deleted file mode 100644
index acd82ba420..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status_drawer.xml
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <CheckBox
-            android:id="@+id/cb_alpha"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_margin="4dp"
-            android:text="@string/bar_status_title_alpha" />
-
-        <CheckBox
-            android:id="@+id/cb_front"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_margin="4dp"
-            android:text="@string/bar_status_is_front" />
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_random_color"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_random_color" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_bar_status_fragment.xml b/app/src/main/res-core/layout/activity_bar_status_fragment.xml
deleted file mode 100644
index 13beb04e6f..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status_fragment.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:orientation="vertical">
-
-    <android.support.v4.view.ViewPager
-        android:id="@+id/vp_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1"
-        android:orientation="vertical"
-        android:overScrollMode="never" />
-
-    <android.support.design.widget.BottomNavigationView
-        android:id="@+id/navigation_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom"
-        android:background="?android:attr/windowBackground"
-        app:menu="@menu/navigation_status_bar" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_bar_status_image_view.xml b/app/src/main/res-core/layout/activity_bar_status_image_view.xml
deleted file mode 100644
index 9f6a49eaa7..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status_image_view.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <ImageView
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:scaleType="centerCrop"
-        android:src="@drawable/image_lena" />
-
-    <ScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="@color/white">
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center_horizontal"
-            android:orientation="vertical"
-            android:paddingLeft="@dimen/spacing_16"
-            android:paddingRight="@dimen/spacing_16">
-
-            <TextView
-                android:id="@+id/tv_status_alpha"
-                style="@style/TextStyle"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center_horizontal" />
-
-            <SeekBar
-                android:id="@+id/sb_change_alpha"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:max="255"
-                android:padding="@dimen/spacing_8"
-                android:progress="112" />
-
-            <Button
-                android:id="@+id/btn_set_transparent"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/bar_status_set_transparent" />
-
-        </LinearLayout>
-    </ScrollView>
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_bar_status_swipe_back.xml b/app/src/main/res-core/layout/activity_bar_status_swipe_back.xml
deleted file mode 100644
index e6bf6197ff..0000000000
--- a/app/src/main/res-core/layout/activity_bar_status_swipe_back.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/ll_container"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:background="@color/white"
-    android:gravity="center_horizontal"
-    android:orientation="vertical">
-
-    <CheckBox
-        android:id="@+id/cb_alpha"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_horizontal"
-        android:layout_margin="4dp"
-        android:text="@string/bar_status_title_alpha" />
-
-    <TextView
-        android:id="@+id/tv_status_alpha"
-        style="@style/TextStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_horizontal" />
-
-    <SeekBar
-        android:id="@+id/sb_change_alpha"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginRight="@dimen/spacing_16"
-        android:max="255"
-        android:padding="@dimen/spacing_8"
-        android:progress="112" />
-
-    <Button
-        android:id="@+id/btn_random_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginRight="@dimen/spacing_16"
-        android:text="@string/bar_status_random_color" />
-
-    <Button
-        android:id="@+id/btn_set_transparent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginRight="@dimen/spacing_16"
-        android:text="@string/bar_status_set_transparent" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_clean.xml b/app/src/main/res-core/layout/activity_clean.xml
deleted file mode 100644
index d612206149..0000000000
--- a/app/src/main/res-core/layout/activity_clean.xml
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_clean_internal_cache"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_cache" />
-
-    <Button
-        android:id="@+id/btn_clean_internal_files"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_files" />
-
-    <Button
-        android:id="@+id/btn_clean_internal_databases"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_databases" />
-
-    <Button
-        android:id="@+id/btn_clean_internal_sp"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_sp" />
-
-    <Button
-        android:id="@+id/btn_clean_external_cache"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_external_cache" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_device.xml b/app/src/main/res-core/layout/activity_device.xml
deleted file mode 100644
index 0cd4056dcf..0000000000
--- a/app/src/main/res-core/layout/activity_device.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_device"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_shutdown"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_shutdown" />
-
-    <Button
-        android:id="@+id/btn_reboot"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_reboot" />
-
-    <Button
-        android:id="@+id/btn_reboot_to_recovery"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_reboot_to_recovery" />
-
-    <Button
-        android:id="@+id/btn_reboot_to_bootloader"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_reboot_to_bootloader" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_flashlight.xml b/app/src/main/res-core/layout/activity_flashlight.xml
deleted file mode 100644
index d2508c7e3a..0000000000
--- a/app/src/main/res-core/layout/activity_flashlight.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_flashlight"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_set_flashlight_on"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/flashlight_on" />
-
-    <Button
-        android:id="@+id/btn_set_flashlight_off"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/flashlight_off" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_fragment.xml b/app/src/main/res-core/layout/activity_fragment.xml
deleted file mode 100644
index 4394d49af7..0000000000
--- a/app/src/main/res-core/layout/activity_fragment.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:orientation="vertical">
-
-    <FrameLayout
-        android:id="@+id/fragment_container"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1" />
-
-    <android.support.design.widget.BottomNavigationView
-        android:id="@+id/navigation_fragment"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom"
-        android:background="?android:attr/windowBackground"
-        app:menu="@menu/navigation_fragment" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_image.xml b/app/src/main/res-core/layout/activity_image.xml
deleted file mode 100644
index cdf27b357d..0000000000
--- a/app/src/main/res-core/layout/activity_image.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:background="@color/white"
-    android:descendantFocusability="blocksDescendants"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_save"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/image_save" />
-
-    <android.support.v7.widget.RecyclerView
-        android:id="@+id/rv_images"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_keyboard.xml b/app/src/main/res-core/layout/activity_keyboard.xml
deleted file mode 100644
index 13fd53eedc..0000000000
--- a/app/src/main/res-core/layout/activity_keyboard.xml
+++ /dev/null
@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/rainbow_green">
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="2000dp"
-        android:orientation="vertical"
-        android:padding="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_about_keyboard"
-            style="@style/TextStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <Button
-            android:id="@+id/btn_hide_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tv_about_keyboard"
-            android:text="@string/keyboard_hide_soft_input" />
-
-        <Button
-            android:id="@+id/btn_show_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/btn_hide_soft_input"
-            android:text="@string/keyboard_show_soft_input" />
-
-        <Button
-            android:id="@+id/btn_toggle_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/btn_show_soft_input"
-            android:text="@string/keyboard_toggle_soft_input" />
-
-        <Button
-            android:id="@+id/btn_keyboard_in_fragment"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/btn_toggle_soft_input"
-            android:text="@string/keyboard_show_dialog" />
-
-        <EditText
-            android:id="@+id/et_input"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_alignParentBottom="true"
-            android:inputType="text" />
-
-    </RelativeLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_log.xml b/app/src/main/res-core/layout/activity_log.xml
deleted file mode 100644
index fc56b5e7c0..0000000000
--- a/app/src/main/res-core/layout/activity_log.xml
+++ /dev/null
@@ -1,184 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_log"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_toggle_log"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_log" />
-
-    <Button
-        android:id="@+id/btn_toggle_console"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_console" />
-
-    <Button
-        android:id="@+id/btn_toggle_tag"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_tag" />
-
-    <Button
-        android:id="@+id/btn_toggle_head"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_head" />
-
-    <Button
-        android:id="@+id/btn_toggle_file"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_file" />
-
-    <Button
-        android:id="@+id/btn_toggle_dir"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_dir" />
-
-    <Button
-        android:id="@+id/btn_toggle_border"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_border" />
-
-    <Button
-        android:id="@+id/btn_toggle_single"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_single" />
-
-    <Button
-        android:id="@+id/btn_toggle_conole_filter"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_console_filter" />
-
-    <Button
-        android:id="@+id/btn_toggle_file_filter"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_file_filter" />
-
-    <Button
-        android:id="@+id/btn_log_no_tag"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_with_no_tag" />
-
-    <Button
-        android:id="@+id/btn_log_with_tag"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_with_tag" />
-
-    <Button
-        android:id="@+id/btn_log_in_new_thread"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_in_new_thread" />
-
-    <Button
-        android:id="@+id/btn_log_null"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_null" />
-
-    <Button
-        android:id="@+id/btn_log_many_params"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_many_params" />
-
-    <Button
-        android:id="@+id/btn_log_long"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_long_string" />
-
-    <Button
-        android:id="@+id/btn_log_file"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_to_file" />
-
-    <Button
-        android:id="@+id/btn_log_json"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_json" />
-
-    <Button
-        android:id="@+id/btn_log_xml"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_xml" />
-
-    <Button
-        android:id="@+id/btn_log_array"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_array" />
-
-    <Button
-        android:id="@+id/btn_log_throwable"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_throwable" />
-
-    <Button
-        android:id="@+id/btn_log_bundle"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_bundle" />
-
-    <Button
-        android:id="@+id/btn_log_intent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_intent" />
-
-    <Button
-        android:id="@+id/btn_log_array_list"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_array_list" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_network.xml b/app/src/main/res-core/layout/activity_network.xml
deleted file mode 100644
index 463205cc2f..0000000000
--- a/app/src/main/res-core/layout/activity_network.xml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_network"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <TextView
-        android:id="@+id/tv_about_network_async"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_open_wireless_settings"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/network_open_wireless_settings" />
-
-    <Button
-        android:id="@+id/btn_set_data_enabled"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/network_set_data_enabled" />
-
-    <Button
-        android:id="@+id/btn_set_wifi_enabled"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/network_set_wifi_enabled" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_path.xml b/app/src/main/res-core/layout/activity_path.xml
deleted file mode 100644
index a691536786..0000000000
--- a/app/src/main/res-core/layout/activity_path.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_path"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_permission.xml b/app/src/main/res-core/layout/activity_permission.xml
deleted file mode 100644
index 11090040e8..0000000000
--- a/app/src/main/res-core/layout/activity_permission.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_permission"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_open_app_settings"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_open_app_settings" />
-
-    <Button
-        android:id="@+id/btn_request_calendar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_request_calendar" />
-
-    <Button
-        android:id="@+id/btn_request_record_audio"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_request_record_audio" />
-
-    <Button
-        android:id="@+id/btn_request_calendar_and_record_audio"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_request_calendar" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_phone.xml b/app/src/main/res-core/layout/activity_phone.xml
deleted file mode 100644
index abb8234c06..0000000000
--- a/app/src/main/res-core/layout/activity_phone.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_phone"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_dial"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_dial" />
-
-    <Button
-        android:id="@+id/btn_call"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_call" />
-
-    <Button
-        android:id="@+id/btn_send_sms"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_send_sms" />
-
-    <Button
-        android:id="@+id/btn_send_sms_silent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_send_sms_silent" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_process.xml b/app/src/main/res-core/layout/activity_process.xml
deleted file mode 100644
index 3e8eee335d..0000000000
--- a/app/src/main/res-core/layout/activity_process.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_process"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_kill_all_background_processes"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/process_kill_all_background" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_reflect.xml b/app/src/main/res-core/layout/activity_reflect.xml
deleted file mode 100644
index f4313589eb..0000000000
--- a/app/src/main/res-core/layout/activity_reflect.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_reflect"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_resource.xml b/app/src/main/res-core/layout/activity_resource.xml
deleted file mode 100644
index 969a73843b..0000000000
--- a/app/src/main/res-core/layout/activity_resource.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_resource"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_resource_test_assets"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/resource_test_assets" />
-
-    <Button
-        android:id="@+id/btn_resource_test_raw"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/resource_test_raw" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_screen.xml b/app/src/main/res-core/layout/activity_screen.xml
deleted file mode 100644
index 1c6f0ca042..0000000000
--- a/app/src/main/res-core/layout/activity_screen.xml
+++ /dev/null
@@ -1,81 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@android:color/darker_gray">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical">
-
-        <ImageView
-            android:id="@+id/iv_screenshot"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-        <TextView
-            android:id="@+id/tv_about_screen"
-            style="@style/TextStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <Button
-            android:id="@+id/btn_set_fullscreen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_fullscreen" />
-
-        <Button
-            android:id="@+id/btn_set_non_fullscreen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_non_fullscreen" />
-
-        <Button
-            android:id="@+id/btn_toggle_fullscreen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_toggle_fullscreen" />
-
-        <Button
-            android:id="@+id/btn_set_landscape"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_landscape" />
-
-        <Button
-            android:id="@+id/btn_set_portrait"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_portrait" />
-
-        <Button
-            android:id="@+id/btn_screenshot"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_screenshot" />
-
-        <Button
-            android:id="@+id/btn_set_sleep_duration"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_sleep_duration" />
-
-        <Button
-            android:id="@+id/btn_test_adapt_screen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_test_adapt_screen" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_sdcard.xml b/app/src/main/res-core/layout/activity_sdcard.xml
deleted file mode 100644
index 106f4a3e4e..0000000000
--- a/app/src/main/res-core/layout/activity_sdcard.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_sdcard"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_snackbar.xml b/app/src/main/res-core/layout/activity_snackbar.xml
deleted file mode 100644
index e2c0e24420..0000000000
--- a/app/src/main/res-core/layout/activity_snackbar.xml
+++ /dev/null
@@ -1,98 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingBottom="@dimen/spacing_128"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16"
-    android:paddingTop="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_short_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_short" />
-
-    <Button
-        android:id="@+id/btn_short_snackbar_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_short_with_action" />
-
-    <Button
-        android:id="@+id/btn_long_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_long" />
-
-    <Button
-        android:id="@+id/btn_long_snackbar_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_long_with_action" />
-
-    <Button
-        android:id="@+id/btn_indefinite_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_indefinite" />
-
-    <Button
-        android:id="@+id/btn_indefinite_snackbar_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_indefinite_with_action" />
-
-    <Button
-        android:id="@+id/btn_add_view"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_add_view" />
-
-    <Button
-        android:id="@+id/btn_add_view_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_add_view_with_action" />
-
-    <Button
-        android:id="@+id/btn_show_success"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_success" />
-
-    <Button
-        android:id="@+id/btn_show_warning"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_warning" />
-
-    <Button
-        android:id="@+id/btn_show_error"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_error" />
-
-
-    <Button
-        android:id="@+id/btn_dismiss_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_dismiss" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_sp.xml b/app/src/main/res-core/layout/activity_sp.xml
deleted file mode 100644
index 2f29c5d838..0000000000
--- a/app/src/main/res-core/layout/activity_sp.xml
+++ /dev/null
@@ -1,61 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingBottom="@dimen/spacing_128"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16"
-    android:paddingTop="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_sp"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_sp_put_string"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_string" />
-
-    <Button
-        android:id="@+id/btn_sp_put_int"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_int" />
-
-    <Button
-        android:id="@+id/btn_sp_put_long"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_long" />
-
-    <Button
-        android:id="@+id/btn_sp_put_float"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_float" />
-
-    <Button
-        android:id="@+id/btn_sp_put_boolean"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_boolean" />
-
-    <Button
-        android:id="@+id/btn_sp_clear"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_clear" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_span.xml b/app/src/main/res-core/layout/activity_span.xml
deleted file mode 100644
index 8b9755af76..0000000000
--- a/app/src/main/res-core/layout/activity_span.xml
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:background="@color/light_black"
-        android:id="@+id/tv_about_anim_span"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="start"
-        android:layerType="software" />
-
-    <TextView
-        android:id="@+id/tv_about_span"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:clickable="true"
-        android:focusable="true"
-        android:gravity="start|center_vertical" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/activity_toast.xml b/app/src/main/res-core/layout/activity_toast.xml
deleted file mode 100644
index e1c413744a..0000000000
--- a/app/src/main/res-core/layout/activity_toast.xml
+++ /dev/null
@@ -1,72 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_show_short_toast"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_short" />
-
-    <Button
-        android:id="@+id/btn_show_long_toast"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_long" />
-
-    <Button
-        android:id="@+id/btn_show_green_font"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_green_font" />
-
-    <Button
-        android:id="@+id/btn_show_bg_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_bg_color" />
-
-    <Button
-        android:id="@+id/btn_show_bg_resource"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_bg_resource" />
-
-    <Button
-        android:id="@+id/btn_show_span"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_span" />
-
-    <Button
-        android:id="@+id/btn_show_custom_view"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_custom_view" />
-
-    <Button
-        android:id="@+id/btn_show_middle"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_middle" />
-
-    <Button
-        android:id="@+id/btn_cancel_toast"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_cancel" />
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/activity_util_core.xml b/app/src/main/res-core/layout/activity_util_core.xml
deleted file mode 100644
index 0889b514a8..0000000000
--- a/app/src/main/res-core/layout/activity_util_core.xml
+++ /dev/null
@@ -1,178 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16">
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="activityClick"
-        android:text="@string/demo_activity" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="adaptScreenClick"
-        android:text="@string/demo_adapt_screen" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="appClick"
-        android:text="@string/demo_app" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="barClick"
-        android:text="@string/demo_bar" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="cleanClick"
-        android:text="@string/demo_clean" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="crashClick"
-        android:text="@string/demo_crash" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="deviceClick"
-        android:text="@string/demo_device" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="fragmentClick"
-        android:text="@string/demo_fragment" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="imageClick"
-        android:text="@string/demo_image" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="keyboardClick"
-        android:text="@string/demo_keyboard" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="logClick"
-        android:text="@string/demo_log" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="metaDataClick"
-        android:text="@string/demo_meta_data" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="networkClick"
-        android:text="@string/demo_network" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="pathClick"
-        android:text="@string/demo_path" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="permissionClick"
-        android:text="@string/demo_permission" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="phoneClick"
-        android:text="@string/demo_phone" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="processClick"
-        android:text="@string/demo_process" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="reflectClick"
-        android:text="@string/demo_reflect" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="resourceClick"
-        android:text="@string/demo_resource" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="sdcardClick"
-        android:text="@string/demo_sdcard" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="snackbarClick"
-        android:text="@string/demo_snackbar" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="spClick"
-        android:text="@string/demo_sp" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="spannableClick"
-        android:text="@string/demo_span" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="toastClick"
-        android:text="@string/demo_toast" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/dialog_keyboard.xml b/app/src/main/res-core/layout/dialog_keyboard.xml
deleted file mode 100644
index 684a1dcc01..0000000000
--- a/app/src/main/res-core/layout/dialog_keyboard.xml
+++ /dev/null
@@ -1,133 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:padding="@dimen/spacing_16">
-
-        <Button
-            android:id="@+id/btn_hide_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_hide_soft_input" />
-
-        <Button
-            android:id="@+id/btn_show_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_show_soft_input" />
-
-        <Button
-            android:id="@+id/btn_toggle_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_toggle_soft_input" />
-
-        <Button
-            android:id="@+id/btn_close_dialog"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_close_dialog" />
-
-        <EditText
-            android:id="@+id/et_input"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input1"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input2"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input3"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_gravity="bottom"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input4"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input5"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input6"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input7"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input8"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input9"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input10"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input11"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input12"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input13"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/fragment_bar_status_alpha.xml b/app/src/main/res-core/layout/fragment_bar_status_alpha.xml
deleted file mode 100644
index 70107ef6f0..0000000000
--- a/app/src/main/res-core/layout/fragment_bar_status_alpha.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@drawable/bar_status_alpha_bg"
-    android:orientation="vertical">
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:id="@+id/ll_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/fragment_bar_status_color.xml b/app/src/main/res-core/layout/fragment_bar_status_color.xml
deleted file mode 100644
index 4e9080d5be..0000000000
--- a/app/src/main/res-core/layout/fragment_bar_status_color.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_random_color"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_random_color" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/fragment_bar_status_custom.xml b/app/src/main/res-core/layout/fragment_bar_status_custom.xml
deleted file mode 100644
index f5d0dbd147..0000000000
--- a/app/src/main/res-core/layout/fragment_bar_status_custom.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <View
-        android:background="@drawable/bar_status_custom"
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-</LinearLayout>
diff --git a/app/src/main/res-core/layout/fragment_bar_status_image_view.xml b/app/src/main/res-core/layout/fragment_bar_status_image_view.xml
deleted file mode 100644
index 44c2694576..0000000000
--- a/app/src/main/res-core/layout/fragment_bar_status_image_view.xml
+++ /dev/null
@@ -1,52 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <ImageView
-        android:id="@+id/iv_header"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:scaleType="centerCrop"
-        android:src="@drawable/image_lena" />
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_below="@+id/iv_header"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-
-</RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/fragment_child.xml b/app/src/main/res-core/layout/fragment_child.xml
deleted file mode 100644
index f63d429a20..0000000000
--- a/app/src/main/res-core/layout/fragment_child.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_fragment"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_show_about_fragment"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/fragment_show_stack" />
-
-    <Button
-        android:id="@+id/btn_pop"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/fragment_pop" />
-
-    <ImageView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:src="@drawable/image_lena"
-        android:transitionName="@string/fragment_transition" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/fragment_root.xml b/app/src/main/res-core/layout/fragment_root.xml
deleted file mode 100644
index 31e5e420c2..0000000000
--- a/app/src/main/res-core/layout/fragment_root.xml
+++ /dev/null
@@ -1,103 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:padding="@dimen/spacing_16">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical">
-
-        <TextView
-            android:id="@+id/tv_about_fragment"
-            style="@style/TextStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <FrameLayout
-            android:id="@+id/child_fragment_container"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <Button
-            android:id="@+id/btn_show_about_fragment"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_show_stack" />
-
-        <Button
-            android:id="@+id/btn_add"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add" />
-
-        <Button
-            android:id="@+id/btn_add_hide"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_hide" />
-
-        <Button
-            android:id="@+id/btn_add_hide_stack"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_hide_stack" />
-
-        <Button
-            android:id="@+id/btn_add_show"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_demo1_show" />
-
-        <Button
-            android:id="@+id/btn_add_child"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_child" />
-
-        <Button
-            android:id="@+id/btn_pop_to_root"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_pop_to_root" />
-
-        <Button
-            android:id="@+id/btn_pop_add"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_pop_add" />
-
-        <Button
-            android:id="@+id/btn_hide_show"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_hide_demo0_show_demo1" />
-
-        <Button
-            android:id="@+id/btn_replace"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_replace" />
-
-        <ImageView
-            android:id="@+id/iv_shared_element"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:src="@drawable/image_lena"
-            android:transitionName="@string/fragment_transition" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/item_image.xml b/app/src/main/res-core/layout/item_image.xml
deleted file mode 100644
index 100d32cf0f..0000000000
--- a/app/src/main/res-core/layout/item_image.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="vertical">
-
-    <TextView
-        android:id="@+id/tv_image_name"
-        style="@style/TextStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
-
-    <ImageView
-        android:id="@+id/iv_image"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/item_image1.xml b/app/src/main/res-core/layout/item_image1.xml
deleted file mode 100644
index a430afdb36..0000000000
--- a/app/src/main/res-core/layout/item_image1.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <TextView
-        android:id="@+id/tv_image_name"
-        style="@style/TextStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
-
-    <ImageView
-        android:id="@+id/iv_image"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        app:layout_constraintTop_toBottomOf="@id/tv_image_name" />
-
-</android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/snackbar_custom.xml b/app/src/main/res-core/layout/snackbar_custom.xml
deleted file mode 100644
index 86f3216820..0000000000
--- a/app/src/main/res-core/layout/snackbar_custom.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<TextView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/tv_snackbar_custom"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_gravity="center"
-    android:background="@drawable/snackbar_custom_bg"
-    android:drawableLeft="@mipmap/ic_launcher"
-    android:drawablePadding="@dimen/spacing_16"
-    android:gravity="center_vertical"
-    android:padding="@dimen/spacing_16"
-    android:text="@string/snackbar_custom_view"
-    android:textColor="@color/white"
-    android:textSize="@dimen/font_24" />
\ No newline at end of file
diff --git a/app/src/main/res-core/layout/toast_custom.xml b/app/src/main/res-core/layout/toast_custom.xml
deleted file mode 100644
index e384592ff2..0000000000
--- a/app/src/main/res-core/layout/toast_custom.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<TextView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/tv_toast_message"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:layout_gravity="center"
-    android:background="@drawable/toast_shape_round_rect"
-    android:drawableLeft="@mipmap/ic_launcher"
-    android:drawablePadding="@dimen/spacing_16"
-    android:gravity="center"
-    android:padding="@dimen/spacing_16"
-    android:textColor="@color/white"
-    android:textSize="@dimen/font_24" />
\ No newline at end of file
diff --git a/app/src/main/res-core/menu/navigation_fragment.xml b/app/src/main/res-core/menu/navigation_fragment.xml
deleted file mode 100644
index c16b5f96d7..0000000000
--- a/app/src/main/res-core/menu/navigation_fragment.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item
-        android:id="@+id/navigation_fragment_zero"
-        android:icon="@drawable/fragment_nav"
-        android:title="@string/fragment_zero" />
-
-    <item
-        android:id="@+id/navigation_fragment_one"
-        android:icon="@drawable/fragment_nav"
-        android:title="@string/fragment_one" />
-
-    <item
-        android:id="@+id/navigation_fragment_two"
-        android:icon="@drawable/fragment_nav"
-        android:title="@string/fragment_two" />
-
-</menu>
diff --git a/app/src/main/res-core/menu/navigation_status_bar.xml b/app/src/main/res-core/menu/navigation_status_bar.xml
deleted file mode 100644
index 17526f33e8..0000000000
--- a/app/src/main/res-core/menu/navigation_status_bar.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item
-        android:id="@+id/navigation_color"
-        android:icon="@drawable/bar_status_nav_color"
-        android:title="@string/bar_status_title_color" />
-
-    <item
-        android:id="@+id/navigation_alpha"
-        android:icon="@drawable/bar_status_nav_alpha"
-        android:title="@string/bar_status_title_alpha" />
-
-    <item
-        android:id="@+id/navigation_image_view"
-        android:icon="@drawable/bar_status_nav_image"
-        android:title="@string/bar_status_title_image_view" />
-
-    <item
-        android:id="@+id/navigation_custom"
-        android:icon="@drawable/bar_status_nav_custom"
-        android:title="@string/bar_status_title_custom" />
-
-</menu>
diff --git a/app/src/main/res-core/values/strings.xml b/app/src/main/res-core/values/strings.xml
deleted file mode 100644
index 31820cab5b..0000000000
--- a/app/src/main/res-core/values/strings.xml
+++ /dev/null
@@ -1,289 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="demo_activity">ActivityUtils Demo</string>
-    <string name="demo_adapt_screen">AdaptScreenUtils Demo</string>
-    <string name="demo_app">AppUtils Demo</string>
-    <string name="demo_bar">BarUtils Demo</string>
-    <string name="demo_clean">CleanUtils Demo</string>
-    <string name="demo_crash">CrashUtils Demo</string>
-    <string name="demo_device">DeviceUtils Demo</string>
-    <string name="demo_fragment">FragmentUtils Demo</string>
-    <string name="demo_image">ImageUtils Demo</string>
-    <string name="demo_keyboard">KeyboardUtils Demo</string>
-    <string name="demo_log">LogUtils Demo</string>
-    <string name="demo_meta_data">MetaData Demo</string>
-    <string name="demo_network">NetworkUtils Demo</string>
-    <string name="demo_path">Path Demo</string>
-    <string name="demo_permission">PermissionUtils Demo</string>
-    <string name="demo_phone">PhoneUtils Demo</string>
-    <string name="demo_process">ProcessUtils Demo</string>
-    <string name="demo_reflect">ReflectUtils Demo</string>
-    <string name="demo_resource">ResourceUtils Demo</string>
-    <string name="demo_screen">ScreenUtils Demo</string>
-    <string name="demo_sdcard">SDCardUtils Demo</string>
-    <string name="demo_snackbar">Snackbar Demo</string>
-    <string name="demo_sp">SP Demo</string>
-    <string name="demo_span">SpanUtils Demo</string>
-    <string name="demo_toast">ToastUtils Demo</string>
-
-    <!--Activity 相关-->
-    <string name="activity_shared_element">Shared Element</string>
-    <string name="activity_clz">Clz</string>
-    <string name="activity_clz_opt">Clz Opt</string>
-    <string name="activity_clz_anim">Clz Anim</string>
-    <string name="activity_act_clz">Act Clz</string>
-    <string name="activity_act_clz_opt">Act Clz Opt</string>
-    <string name="activity_act_clz_shared_element">Act Clz Shared Element</string>
-    <string name="activity_act_clz_anim">Act Clz Anim</string>
-    <string name="activity_pkg_cls">Pkg Cls</string>
-    <string name="activity_pkg_cls_opt">Pkg Cls Opt</string>
-    <string name="activity_pkg_cls_anim">Pkg Cls Anim</string>
-    <string name="activity_act_pkg_cls">Act Pkg Cls</string>
-    <string name="activity_act_pkg_cls_opt">Act Pkg Cls Opt</string>
-    <string name="activity_act_pkg_cls_shared_element">Act Pkg Cls Shared Element</string>
-    <string name="activity_act_pkg_cls_anim">Act Pkg Cls Anim</string>
-    <string name="activity_intent">Intent</string>
-    <string name="activity_intent_opt">Intent Opt</string>
-    <string name="activity_intent_shared_element">Intent Shared Element</string>
-    <string name="activity_intent_anim">Intent Anim</string>
-    <string name="activity_intents">Intents</string>
-    <string name="activity_intents_opt">Intents Opt</string>
-    <string name="activity_intents_anim">Intents Anim</string>
-    <string name="activity_act_intents">Act Intents</string>
-    <string name="activity_act_intents_opt">Act Intents Opt</string>
-    <string name="activity_act_intents_anim">Act Intents Anim</string>
-    <string name="activity_start_activities">Start Activities</string>
-    <string name="activity_start_home_activity">Start Home Activity</string>
-    <string name="activity_finish_activity">Finish MainActivity</string>
-    <string name="activity_finish_to_activity">Finish To MainActivity</string>
-    <string name="activity_finish_all_activities">Finish All Activities</string>
-
-    <!--App 相关-->
-    <string name="app_install">Install Test App</string>
-    <string name="app_install_tips">Test app have installed</string>
-    <string name="app_install_silent">Install Test App Silently</string>
-    <string name="install_successfully">Install successfully</string>
-    <string name="install_unsuccessfully">Install unsuccessfully</string>
-    <string name="app_uninstall">Uninstall Test App</string>
-    <string name="app_uninstall_tips">Please install test app first</string>
-    <string name="app_uninstall_silent">Uninstall App Silently</string>
-    <string name="uninstall_successfully">Uninstall successfully</string>
-    <string name="uninstall_unsuccessfully">Uninstall unsuccessfully</string>
-    <string name="app_launch">Launch App</string>
-    <string name="app_relaunch">Relaunch App</string>
-    <string name="app_launch_details_settings">Launch App Details Settings</string>
-    <string name="app_exit">Exit App</string>
-
-    <!--Bar 相关-->
-    <string name="bar_about_status_bar">About Status Bar</string>
-    <string name="bar_about_nav_bar">About Nav Bar</string>
-    <string name="bar_about_notification_bar">About Notification Bar</string>
-
-    <string name="bar_status_about">About Status</string>
-    <string name="bar_status_show">Show Status</string>
-    <string name="bar_status_hide">Hide Status</string>
-    <string name="bar_status_light_mode">Light Mode Status</string>
-    <string name="bar_status_dark_mode">Dark Mode Status</string>
-    <string name="bar_status_set_color">Set Color</string>
-    <string name="bar_status_set_alpha">Set Alpha</string>
-    <string name="bar_status_set_image_view">Set Image View</string>
-    <string name="bar_status_set_fragment">Set Fragment</string>
-    <string name="bar_status_set_swipe_back">Set Swipe Back</string>
-    <string name="bar_status_set_drawer">Set Drawer</string>
-    <string name="bar_status_random_color">Random Color</string>
-    <string name="bar_status_set_transparent">Set Transparent</string>
-    <string name="bar_status_title_color">Color</string>
-    <string name="bar_status_title_alpha">Alpha</string>
-    <string name="bar_status_is_front">Front</string>
-    <string name="bar_status_title_image_view">Image</string>
-    <string name="bar_status_title_custom">Custom</string>
-
-    <string name="bar_notification_about">About Notification</string>
-    <string name="bar_notification_show">Show Notification And Hide After 2s</string>
-
-    <string name="bar_nav_about">About Nav</string>
-    <string name="bar_nav_show">Show Nav</string>
-    <string name="bar_nav_hide">Hide Nav</string>
-    <string name="bar_nav_immersive">Immersive Nav</string>
-    <string name="bar_nav_color">Set Nav Color Random</string>
-
-    <!--Clean 相关-->
-    <string name="clean_internal_cache">Clean Internal Cache</string>
-    <string name="clean_internal_files">Clean Internal Files</string>
-    <string name="clean_internal_databases">Clean Internal Databases</string>
-    <string name="clean_internal_sp">Clean Internal SP</string>
-    <string name="clean_external_cache">Clean External Cache</string>
-
-    <!--Device 相关-->
-    <string name="device_shutdown">Shutdown</string>
-    <string name="device_reboot">Reboot</string>
-    <string name="device_reboot_to_recovery">Reboot To Recovery</string>
-    <string name="device_reboot_to_bootloader">Reboot To Bootloader</string>
-
-    <!--Fragment 相关-->
-    <string name="fragment_zero">Fragment0</string>
-    <string name="fragment_one">Fragment1</string>
-    <string name="fragment_two">Fragment2</string>
-    <string name="fragment_show_stack">Show Stack</string>
-    <string name="fragment_add">Add</string>
-    <string name="fragment_add_hide">Add Hide</string>
-    <string name="fragment_add_hide_stack">Add Hide Stack</string>
-    <string name="fragment_add_demo1_show">Add Demo1 Show</string>
-    <string name="fragment_add_child">Add Child</string>
-    <string name="fragment_pop">Pop</string>
-    <string name="fragment_pop_to_root">Pop To Root</string>
-    <string name="fragment_pop_add">Pop Add</string>
-    <string name="fragment_hide_demo0_show_demo1">Hide Demo0 Show Demo1</string>
-    <string name="fragment_hide_demo1_show_demo0">Hide Demo1 Show Demo0</string>
-    <string name="fragment_replace">Replace</string>
-    <string name="fragment_transition">Transition</string>
-
-    <!--Image 相关-->
-    <string name="image_src">Src</string>
-    <string name="image_add_color">Add Color</string>
-    <string name="image_scale">Scale</string>
-    <string name="image_clip">Clip</string>
-    <string name="image_skew">Skew</string>
-    <string name="image_rotate">Rotate</string>
-    <string name="image_to_round">To Round</string>
-    <string name="image_to_round_border">To Round Border</string>
-    <string name="image_to_round_corner">To Round Corner</string>
-    <string name="image_to_round_corner_border">To Round Corner Border</string>
-    <string name="image_add_corner_border">Add Corner Border</string>
-    <string name="image_add_circle_border">Add Circle Border</string>
-    <string name="image_add_reflection">Add Reflection</string>
-    <string name="image_add_text_watermark">Add Text Watermark</string>
-    <string name="image_add_image_watermark">Add Image Watermark</string>
-    <string name="image_to_gray">Gray</string>
-    <string name="image_fast_blur">Fast Blur</string>
-    <string name="image_render_script_blur">Render Script Blur</string>
-    <string name="image_stack_blur">Stack Blur</string>
-    <string name="image_save">Save</string>
-    <string name="image_compress_by_scale">Compress By Scale</string>
-    <string name="image_compress_by_quality_half">Compress By Quality Half</string>
-    <string name="image_compress_by_quality_max_size">Compress By Quality Max Size</string>
-    <string name="image_compress_by_sample_size">Compress By Sample Size</string>
-
-
-    <!--Network 相关-->
-    <string name="network_open_wireless_settings">Open Wireless Settings</string>
-    <string name="network_set_data_enabled">Set Data Enabled</string>
-    <string name="network_set_wifi_enabled">Set Wifi Enabled</string>
-
-    <!--Keyboard 相关-->
-    <string name="keyboard_hide_soft_input">Hide Soft Input</string>
-    <string name="keyboard_show_soft_input">Show Soft Input</string>
-    <string name="keyboard_toggle_soft_input">Toggle Soft Input</string>
-    <string name="keyboard_show_dialog">Show Dialog</string>
-    <string name="keyboard_close_dialog">Close Dialog</string>
-
-    <!--log 相关-->
-    <string name="log_toggle_log">Toggle Log</string>
-    <string name="log_toggle_console">Toggle Console</string>
-    <string name="log_toggle_tag">Toggle Tag</string>
-    <string name="log_toggle_head">Toggle Head</string>
-    <string name="log_toggle_border">Toggle Border</string>
-    <string name="log_toggle_single">Toggle Single</string>
-    <string name="log_toggle_console_filter">Toggle Console Filter</string>
-    <string name="log_toggle_file_filter">Toggle File Filter</string>
-    <string name="log_toggle_file">Toggle File</string>
-    <string name="log_toggle_dir">Toggle Dir</string>
-    <string name="log_with_no_tag">Log With No Tag</string>
-    <string name="log_with_tag">Log With Tag</string>
-    <string name="log_in_new_thread">Log In New Thread</string>
-    <string name="log_null">Log Null</string>
-    <string name="log_many_params">Log Many Params</string>
-    <string name="log_long_string">Log Long String</string>
-    <string name="log_to_file">Log To File</string>
-    <string name="log_json">Log Json</string>
-    <string name="log_xml">Log Xml</string>
-    <string name="log_array">Log Array</string>
-    <string name="log_throwable">Log Throwable</string>
-    <string name="log_bundle">Log Bundle</string>
-    <string name="log_intent">Log Intent</string>
-    <string name="log_array_list">Log Array List</string>
-
-    <!--Permission 相关-->
-    <string name="permission_open_app_settings">Open App Settings</string>
-    <string name="permission_request_calendar">Request Calendar</string>
-    <string name="permission_request_record_audio">Request Record Audio</string>
-    <string name="permission_request_calendar_and_record_audio">Request Calendar And Record Audio</string>
-
-
-    <!--Phone 相关-->
-    <string name="phone_dial">Dial</string>
-    <string name="phone_call">Call</string>
-    <string name="phone_send_sms">Send SMS</string>
-    <string name="phone_send_sms_silent">Send SMS Silent</string>
-
-    <!--Process 相关-->
-    <string name="process_kill_all_background">Kill All Background Processes</string>
-
-    <!--Resource 相关-->
-    <string name="resource_test_assets">Test Assets</string>
-    <string name="resource_test_raw">Test Raw</string>
-
-    <!--Screen 相关-->
-    <string name="screen_set_fullscreen">Set Fullscreen</string>
-    <string name="screen_set_non_fullscreen">Set NonFullscreen</string>
-    <string name="screen_toggle_fullscreen">Toggle Fullscreen</string>
-    <string name="screen_set_landscape">Set Landscape</string>
-    <string name="screen_set_portrait">Set Portrait</string>
-    <string name="screen_screenshot">Screenshot</string>
-    <string name="screen_set_sleep_duration">Set Sleep Duration</string>
-    <string name="screen_test_adapt_screen">Test Adapt Screen</string>
-    <string name="adapt_screen_system_toast">System Toast</string>
-    <string name="adapt_screen_util_toast">Util Toast</string>
-    <string name="adapt_screen_system_dialog">System Dialog</string>
-    <string name="adapt_screen_system_dialog_without_adapt">System Dialog Without Adapt</string>
-
-    <!--SnackBar 相关-->
-    <string name="snackbar_show_short">Show Short Snackbar</string>
-    <string name="snackbar_show_short_with_action">Show Short Snackbar With Action</string>
-    <string name="snackbar_show_long">Show Long Snackbar</string>
-    <string name="snackbar_show_long_with_action">Show Long Snackbar With Action</string>
-    <string name="snackbar_show_indefinite">Show Indefinite Snackbar</string>
-    <string name="snackbar_show_indefinite_with_action">Show Indefinite Snackbar With Action</string>
-    <string name="snackbar_add_view">Add View</string>
-    <string name="snackbar_add_view_with_action">Add View With Action</string>
-    <string name="snackbar_show_success">Show Success</string>
-    <string name="snackbar_show_warning">Show Warning</string>
-    <string name="snackbar_show_error">Show Error</string>
-    <string name="snackbar_dismiss">Dismiss Snackbar</string>
-    <string name="snackbar_short">Short Snackbar</string>
-    <string name="snackbar_long">Long Snackbar</string>
-    <string name="snackbar_indefinite">Indefinite Snackbar</string>
-    <string name="snackbar_click">Click</string>
-    <string name="snackbar_custom_view">Custom View</string>
-    <string name="snackbar_success">Success</string>
-    <string name="snackbar_warning">Warning</string>
-    <string name="snackbar_error">Error</string>
-
-    <!--SP 相关-->
-    <string name="sp_put_string">Put String</string>
-    <string name="sp_put_int">Put Int</string>
-    <string name="sp_put_long">Put Long</string>
-    <string name="sp_put_float">Put Float</string>
-    <string name="sp_put_boolean">Put Boolean</string>
-    <string name="sp_clear">Clear</string>
-
-    <!--Toast 相关-->
-    <string name="toast_show_short">Show Short</string>
-    <string name="toast_show_long">Show Long</string>
-    <string name="toast_show_green_font">Show Green Font</string>
-    <string name="toast_show_bg_color">Show Bg Color</string>
-    <string name="toast_show_bg_resource">Show Bg Resource</string>
-    <string name="toast_show_span">Show Span</string>
-    <string name="toast_show_custom_view">Show Custom View</string>
-    <string name="toast_custom_view">Custom View</string>
-    <string name="toast_show_middle">Show Middle</string>
-    <string name="toast_cancel">Cancel</string>
-
-    <string name="toast_short">Short</string>
-    <string name="toast_long">Long</string>
-    <string name="toast_green_font">Green Font</string>
-    <string name="toast_bg_color">Bg Color</string>
-    <string name="toast_custom_bg">Custom Bg</string>
-    <string name="toast_span">Spannable String</string>
-    <string name="toast_middle">Middle</string>
-</resources>
diff --git a/app/src/main/res-sub/layout/activity_brightness.xml b/app/src/main/res-sub/layout/activity_brightness.xml
deleted file mode 100644
index dbc7a934ce..0000000000
--- a/app/src/main/res-sub/layout/activity_brightness.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_brightness"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_brightness"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8" />
-
-        <TextView
-            android:id="@+id/tv_window_brightness"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_window_brightness"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8" />
-
-        <ToggleButton
-            android:id="@+id/tb_set_auto_brightness_enable"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:textOff="@string/brightness_set_auto_brightness_enable"
-            android:textOn="@string/brightness_set_auto_brightness_disable" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res-sub/layout/activity_location.xml b/app/src/main/res-sub/layout/activity_location.xml
deleted file mode 100755
index 46cdb8d2c4..0000000000
--- a/app/src/main/res-sub/layout/activity_location.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_location"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
diff --git a/app/src/main/res-sub/layout/activity_meta_data.xml b/app/src/main/res-sub/layout/activity_meta_data.xml
deleted file mode 100755
index 058b2d8a4f..0000000000
--- a/app/src/main/res-sub/layout/activity_meta_data.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_metadata"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-sub/layout/activity_pinyin.xml b/app/src/main/res-sub/layout/activity_pinyin.xml
deleted file mode 100755
index 1c85ce928c..0000000000
--- a/app/src/main/res-sub/layout/activity_pinyin.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_pinyin"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res-sub/layout/activity_util_sub.xml b/app/src/main/res-sub/layout/activity_util_sub.xml
deleted file mode 100644
index 1316d6bfcf..0000000000
--- a/app/src/main/res-sub/layout/activity_util_sub.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16">
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="brightnessClick"
-        android:text="@string/demo_brightness" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="flashlightClick"
-        android:text="@string/demo_flashlight" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="locationClick"
-        android:text="@string/demo_location" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="pinyinClick"
-        android:text="@string/demo_pinyin" />
-
-</LinearLayout>
diff --git a/app/src/main/res-sub/values/strings.xml b/app/src/main/res-sub/values/strings.xml
deleted file mode 100644
index 69bfb7c30a..0000000000
--- a/app/src/main/res-sub/values/strings.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="demo_flashlight">FlashlightUtils Demo</string>
-    <string name="demo_brightness">Brightness Demo</string>
-    <string name="demo_location">LocationUtils Demo</string>
-    <string name="demo_pinyin">PinyinUtils Demo</string>
-
-    <!-- Brightness 相关 -->
-    <string name="brightness_set_auto_brightness_enable">Set Auto Brightness Enable</string>
-    <string name="brightness_set_auto_brightness_disable">Set Auto Brightness Disable</string>
-
-    <!-- Flashlight相关 -->
-    <string name="flashlight_on">Set Flashlight On</string>
-    <string name="flashlight_off">Set Flashlight Off</string>
-
-
-</resources>
diff --git a/app/src/main/res/anim/slide_in_right.xml b/app/src/main/res/anim/slide_in_right.xml
deleted file mode 100755
index 0284446a46..0000000000
--- a/app/src/main/res/anim/slide_in_right.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="300"
-        android:fromXDelta="-100%"
-        android:toXDelta="0" />
-</set>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/main_bg_header.jpeg b/app/src/main/res/drawable/main_bg_header.jpeg
deleted file mode 100644
index 875fc58c21..0000000000
Binary files a/app/src/main/res/drawable/main_bg_header.jpeg and /dev/null differ
diff --git a/app/src/main/res/layout/activity_back.xml b/app/src/main/res/layout/activity_back.xml
deleted file mode 100644
index 6e3b6ce8b3..0000000000
--- a/app/src/main/res/layout/activity_back.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/root_layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white">
-
-    <android.support.design.widget.AppBarLayout
-        android:id="@+id/abl"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
-
-        <android.support.v7.widget.Toolbar
-            android:id="@+id/toolbar"
-            android:layout_width="match_parent"
-            android:layout_height="?attr/actionBarSize"
-            app:layout_scrollFlags="scroll|enterAlways" />
-    </android.support.design.widget.AppBarLayout>
-
-    <android.support.v4.widget.NestedScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <FrameLayout
-            android:id="@+id/activity_container"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-    </android.support.v4.widget.NestedScrollView>
-</android.support.design.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/activity_drawer.xml b/app/src/main/res/layout/activity_drawer.xml
deleted file mode 100644
index 16b1fe3728..0000000000
--- a/app/src/main/res/layout/activity_drawer.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.DrawerLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/root_layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:fitsSystemWindows="true"
-    android:overScrollMode="never"
-    tools:openDrawer="start">
-
-    <FrameLayout
-        android:id="@+id/activity_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <android.support.design.widget.NavigationView
-        android:id="@+id/nav_view"
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:layout_gravity="start"
-        android:background="@color/white"
-        android:fitsSystemWindows="false"
-        app:headerLayout="@layout/activity_drawer_nav_header"
-        app:menu="@menu/main_drawer" />
-
-</android.support.v4.widget.DrawerLayout>
diff --git a/app/src/main/res/layout/activity_drawer_nav_header.xml b/app/src/main/res/layout/activity_drawer_nav_header.xml
deleted file mode 100755
index 93d5d641df..0000000000
--- a/app/src/main/res/layout/activity_drawer_nav_header.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="192dp"
-    android:theme="@style/ThemeOverlay.AppCompat.Dark">
-
-    <ImageView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="@color/colorPrimary"
-        android:scaleType="centerCrop"
-        android:src="@drawable/main_bg_header" />
-
-    <ImageView
-        android:id="@+id/iv_avatar"
-        android:layout_width="80dp"
-        android:layout_height="80dp"
-        android:layout_above="@+id/tv_desc"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:src="@drawable/main_avatar_round" />
-
-    <TextView
-        android:layout_width="match_parent"
-        android:layout_height="80dp"
-        android:layout_above="@+id/tv_desc"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_toRightOf="@id/iv_avatar"
-        android:gravity="center_vertical"
-        android:text="@string/author"
-        android:textColor="@color/white"
-        android:textSize="@dimen/font_40"
-        android:textStyle="bold" />
-
-    <TextView
-        android:id="@+id/tv_desc"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_marginBottom="@dimen/spacing_16"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginTop="@dimen/spacing_8"
-        android:text="@string/demo_of_android_util_code"
-        android:textColor="@color/white"
-        android:textSize="@dimen/font_16" />
-</RelativeLayout>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
deleted file mode 100644
index 55478c0d0c..0000000000
--- a/app/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <android.support.design.widget.AppBarLayout
-        android:layout_width="match_parent"
-        android:layout_height="192dp"
-        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
-
-        <android.support.design.widget.CollapsingToolbarLayout
-            android:id="@+id/ctl"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:contentScrim="@color/colorPrimary"
-            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
-
-            <ImageView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:padding="@dimen/spacing_16"
-                android:scaleType="fitCenter"
-                android:src="@mipmap/ic_launcher"
-                app:layout_collapseMode="parallax"
-                app:layout_collapseParallaxMultiplier="0.6" />
-
-            <android.support.v7.widget.Toolbar
-                android:id="@+id/toolbar"
-                android:layout_width="match_parent"
-                android:layout_height="?attr/actionBarSize"
-                app:layout_collapseMode="pin" />
-
-        </android.support.design.widget.CollapsingToolbarLayout>
-    </android.support.design.widget.AppBarLayout>
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <android.support.v4.widget.NestedScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center_horizontal"
-            android:orientation="vertical"
-            android:paddingLeft="@dimen/spacing_16"
-            android:paddingRight="@dimen/spacing_16">
-
-            <Button
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:onClick="coreUtilClick"
-                android:text="@string/core_util" />
-
-            <Button
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:onClick="subUtilClick"
-                android:text="@string/sub_util" />
-
-        </LinearLayout>
-    </android.support.v4.widget.NestedScrollView>
-</android.support.design.widget.CoordinatorLayout>
diff --git a/app/src/main/res/menu/main_drawer.xml b/app/src/main/res/menu/main_drawer.xml
deleted file mode 100644
index 9a879e2789..0000000000
--- a/app/src/main/res/menu/main_drawer.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item
-        android:id="@+id/action_git_hub"
-        android:icon="@drawable/main_menu_github"
-        android:title="@string/git_hub" />
-
-    <item
-        android:id="@+id/action_blog"
-        android:icon="@drawable/main_menu_blog"
-        android:title="@string/blog" />
-</menu>
diff --git a/app/src/main/res/values-v26/styles.xml b/app/src/main/res/values-v26/styles.xml
deleted file mode 100644
index 60201b597e..0000000000
--- a/app/src/main/res/values-v26/styles.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
-        <item name="android:windowActionBar">false</item>
-        <!--slider-->
-        <item name="android:windowIsTranslucent">false</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
-    <style name="TextStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-    </style>
-
-    <style name="WideBtnStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-        <item name="android:textAllCaps">false</item>
-    </style>
-
-    <style name="AnimationActivity" parent="@android:style/Animation.Translucent">
-        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
-        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
-        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
-        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
-    </style>
-</resources>
diff --git a/app/src/main/res/values-v27/styles.xml b/app/src/main/res/values-v27/styles.xml
deleted file mode 100644
index 4c19777add..0000000000
--- a/app/src/main/res/values-v27/styles.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
-        <item name="android:windowActionBar">false</item>
-        <!--slider-->
-        <item name="android:windowIsTranslucent">true</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
-    <style name="TextStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-    </style>
-
-    <style name="WideBtnStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-        <item name="android:textAllCaps">false</item>
-    </style>
-
-    <style name="AnimationActivity" parent="@android:style/Animation.Translucent">
-        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
-        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
-        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
-        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
-    </style>
-</resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
deleted file mode 100644
index 78d296b974..0000000000
--- a/app/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="colorPrimaryOrigin">#3F51B5</color>
-    <color name="colorPrimaryDarkOrigin">#303F9F</color>
-    <color name="colorAccentOrigin">#FF4081</color>
-
-    <color name="colorPrimary">#34A48E</color>
-    <color name="colorPrimaryHalfTrans">#8034A48E</color>
-    <color name="colorPrimaryDark">#245C50</color>
-    <color name="colorAccent">#FF73A3</color>
-    <color name="colorAccentHalfTrans">#80245C50</color>
-
-    <color name="white">#FFFFFF</color>
-    <color name="light_black">#191919</color>
-
-    <color name="rainbow_red">#bf0c43</color>
-    <color name="rainbow_yellow">#f9ba15</color>
-    <color name="rainbow_green">#8eac00</color>
-    <color name="rainbow_blue">#127a97</color>
-    <color name="rainbow_purple">#452b72</color>
-
-    <integer-array name="rainbow">
-        <item>@color/rainbow_red</item>
-        <item>@color/rainbow_yellow</item>
-        <item>@color/rainbow_green</item>
-        <item>@color/rainbow_blue</item>
-        <item>@color/rainbow_purple</item>
-    </integer-array>
-</resources>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
deleted file mode 100644
index d470c5e816..0000000000
--- a/app/src/main/res/values/dimens.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<resources>
-    <dimen name="radius_16">16dp</dimen>
-
-    <dimen name="spacing_8">8dp</dimen>
-    <dimen name="spacing_16">16dp</dimen>
-    <dimen name="spacing_24">24dp</dimen>
-    <dimen name="spacing_128">128dp</dimen>
-
-    <dimen name="size_40">40dp</dimen>
-    <dimen name="size_160">160dp</dimen>
-
-    <dimen name="font_16">16sp</dimen>
-    <dimen name="font_20">20sp</dimen>
-    <dimen name="font_24">24sp</dimen>
-    <dimen name="font_40">40sp</dimen>
-
-    <dimen name="block_width">40dp</dimen>
-    <dimen name="block_low_height">8dp</dimen>
-    <dimen name="block_high_height">196dp</dimen>
-
-    <dimen name="offset_64">64dp</dimen>
-</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
deleted file mode 100644
index 5ea9595328..0000000000
--- a/app/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="core_util">Core Util</string>
-    <string name="sub_util">Sub Util</string>
-
-    <string name="author">Blankj</string>
-    <string name="demo_of_android_util_code">Demo of AndroidUtilCode</string>
-
-    <string name="navigation_drawer_open">navigation_drawer_open</string>
-    <string name="navigation_drawer_close">navigation_drawer_close</string>
-
-    <string name="git_hub">GitHub</string>
-    <string name="blog">Blog</string>
-
-    <string name="permission_rationale_message">You have rejected us to apply for authorization, please agree to authorization, otherwise the function can\'t be used normally!</string>
-    <string name="permission_denied_forever_message">We need some of the permissions you rejected or the system failed to apply failed, please manually set to the page authorize, otherwise the function can\'t be used normally!</string>
-
-    <string name="crash_restart_tip">The application crashes, does it need to be restarted?</string>
-</resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
deleted file mode 100644
index 4c19777add..0000000000
--- a/app/src/main/res/values/styles.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
-        <item name="android:windowActionBar">false</item>
-        <!--slider-->
-        <item name="android:windowIsTranslucent">true</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
-    <style name="TextStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-    </style>
-
-    <style name="WideBtnStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-        <item name="android:textAllCaps">false</item>
-    </style>
-
-    <style name="AnimationActivity" parent="@android:style/Animation.Translucent">
-        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
-        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
-        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
-        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
-    </style>
-</resources>
diff --git a/art/auc_frame.png b/art/auc_frame.png
new file mode 100644
index 0000000000..68c92d37b1
Binary files /dev/null and b/art/auc_frame.png differ
diff --git a/art/auc_frame_cn.png b/art/auc_frame_cn.png
new file mode 100644
index 0000000000..2382c03197
Binary files /dev/null and b/art/auc_frame_cn.png differ
diff --git a/art/busutil_vs_eventbus.png b/art/busutil_vs_eventbus.png
new file mode 100644
index 0000000000..1a2272b808
Binary files /dev/null and b/art/busutil_vs_eventbus.png differ
diff --git a/art/communication.png b/art/communication.png
new file mode 100644
index 0000000000..f3d68d0b10
Binary files /dev/null and b/art/communication.png differ
diff --git a/art/logo_static_bus.png b/art/logo_static_bus.png
deleted file mode 100755
index 4f5308a13a..0000000000
Binary files a/art/logo_static_bus.png and /dev/null differ
diff --git a/build.gradle b/build.gradle
index abc40a7218..e0f0f36c87 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,30 +1,26 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    apply from: 'config.gradle'
+    ConfigUtils.init(gradle)
     repositories {
-        if (localDebugPlugin) {
-            maven() {
-                url uri(new File(project.rootDir, "maven"))
-            }
-        }
+        mavenLocal()
         google()
+        mavenCentral()
         jcenter()
     }
 
     dependencies {
-        classpath dep.gradle
-        classpath dep.kotlin_gradle_plugin
-
-        classpath dep.android_maven_gradle_plugin
-        classpath dep.gradle_bintray_plugin
-
-        classpath dep.bus_gradle_plugin
+        for (def entrySet : ConfigUtils.getApplyPlugins().entrySet()) {
+            classpath entrySet.value.path
+        }
     }
 }
 
 allprojects {
     repositories {
+        mavenLocal()
+        maven { url "https://jitpack.io" }
         google()
+        mavenCentral()
         jcenter()
     }
 
@@ -32,9 +28,9 @@ allprojects {
         resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
 
         resolutionStrategy.eachDependency {
-            if (it.requested.group == 'com.android.support'
-                    && !it.requested.name.contains('multidex')) {
-                it.useVersion support_version
+            if (it.requested.group == 'com.android.support' && !it.requested.name.contains(
+                    'multidex')) {
+                it.useVersion Config.supportVersion
             }
         }
     }
@@ -42,4 +38,4 @@ allprojects {
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}
\ No newline at end of file
diff --git a/buildApp.gradle b/buildApp.gradle
new file mode 100644
index 0000000000..93f0b9b1d4
--- /dev/null
+++ b/buildApp.gradle
@@ -0,0 +1,131 @@
+apply plugin: "com.android.application"
+
+apply {
+    from "${rootDir.path}/buildCommon.gradle"
+    from "${rootDir.path}/config/flavor.gradle"
+    if (Config.plugins.plugin_api.isApply) {
+        plugin Config.plugins.plugin_api.id
+    }
+    if (Config.plugins.plugin_bus.isApply) {
+        plugin Config.plugins.plugin_bus.id
+    }
+}
+
+configSigning()
+configApkName()
+
+//if (PluginConfig.plugin_bus.isApply) {
+//    bus {
+//        onlyScanLibRegex = '^([:]|(com\\.blankj)).+$'
+//    }
+//}
+//
+//if (PluginConfig.plugin_api.isApply) {
+//    api {
+//        onlyScanLibRegex = '^([:]|(com\\.blankj)).+$'
+//    }
+//}
+
+android {
+    defaultConfig {
+        applicationId Config.applicationId + suffix
+        targetSdkVersion Config.targetSdkVersion
+        multiDexEnabled true
+    }
+
+    buildTypes {
+        debug {}
+
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    packagingOptions {
+        exclude 'META-INF/*'
+    }
+
+    dexOptions {
+        preDexLibraries true
+        javaMaxHeapSize "8g"
+        maxProcessCount 8
+        dexInProcess = true
+    }
+
+    productFlavors {
+        dev {
+            applicationIdSuffix ".dev"
+            versionNameSuffix "-dev"
+            resValue "string", "app_name", Config.appName + suffix + "-dev"
+        }
+
+        production {
+            resValue "string", "app_name", Config.appName + suffix
+        }
+    }
+}
+
+dependencies {
+    // LeakCanary
+    debugImplementation Config.libs.leakcanary.path
+
+    debugImplementation Config.modules.lib_utildebug.dep
+    releaseImplementation Config.modules.lib_utildebug_no_op.dep
+
+    // 根据 Config.pkgConfig 来依赖所有 pkg
+    for (def entrySet : ConfigUtils.getApplyPkgs().entrySet()) {
+        api entrySet.value.dep
+    }
+
+    if (Config.modules.feature_mock.isApply) {
+        api ModuleConfig.modules.feature_mock.dep
+    }
+}
+
+def getSuffix() {
+    if (project.name == "feature_launcher_app") return ""
+    return "." + project.
+        name.
+        substring("feature_".length(), project.name.length() - "_app".length())
+}
+
+def configSigning() {
+
+    File signPropertiesFile = file("${rootDir.path}/sign/keystore.properties")
+    if (!signPropertiesFile.exists()) return
+
+    GLog.d("${project.toString()} sign start...")
+    project.android {
+        Properties properties = new Properties()
+        properties.load(new FileInputStream(signPropertiesFile))
+        signingConfigs {
+            release {
+                storeFile new File(signPropertiesFile.getParent(), properties['keystore'])
+                storePassword properties['storePassword']
+                keyAlias properties['keyAlias']
+                keyPassword properties['keyPassword']
+            }
+        }
+        buildTypes.release.signingConfig signingConfigs.release
+    }
+    GLog.d("${project.toString()} sign end...")
+}
+
+def configApkName() {
+    project.android.applicationVariants.all { variant ->
+        if (variant.buildType.name != "debug") {
+            def artifact = variant.getPackageApplicationProvider().get()
+            artifact.outputDirectory = new File("${rootDir.path}/apk")
+            variant.outputs.each {
+                it.outputFileName = "util" + suffix +
+                    (variant.flavorName == "" ? "" : ("_" + variant.flavorName)) +
+                    "_" +
+                    variant.versionName.replace(".", "_") +
+                    "_" +
+                    variant.buildType.name +
+                    ".apk"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/buildCommon.gradle b/buildCommon.gradle
new file mode 100644
index 0000000000..2cba3ffea2
--- /dev/null
+++ b/buildCommon.gradle
@@ -0,0 +1,30 @@
+apply {
+    plugin "kotlin-android"
+    plugin "kotlin-android-extensions"
+}
+
+android {
+    compileSdkVersion Config.compileSdkVersion
+    defaultConfig {
+        minSdkVersion Config.minSdkVersion
+        versionCode Config.versionCode
+        versionName Config.versionName
+        consumerProguardFiles 'proguard-rules.pro'
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}
\ No newline at end of file
diff --git a/buildLib.gradle b/buildLib.gradle
new file mode 100644
index 0000000000..aed207cbee
--- /dev/null
+++ b/buildLib.gradle
@@ -0,0 +1,13 @@
+apply plugin: "com.android.library"
+apply from: "${rootDir.path}/buildCommon.gradle"
+
+dependencies {
+    if (project.name.endsWith("_pkg") || project.name.endsWith("_mock")) {
+        // if module's name equals 'pkg', api all of export
+        for (def entrySet : ConfigUtils.getApplyExports().entrySet()) {
+            api entrySet.value.dep
+        }
+    } else if (project.name.endsWith("_export")) {
+        api Config.modules.lib_common.dep
+    }
+}
\ No newline at end of file
diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index eaa0a0fc0d..349aed4fec 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -1,23 +1,37 @@
-plugins {
-    id 'groovy'
-    id 'java-gradle-plugin'
+repositories {
+    google()
+    jcenter()
+}
+
+apply {
+    plugin 'groovy'
+    plugin 'java-gradle-plugin'
 }
 
 gradlePlugin {
     plugins {
         readmeCore {
             id = 'readme-core'
-            implementationClass = 'com.blankj.plugin.ReadmeCorePlugin'
+            implementationClass = 'com.blankj.plugin.readme.ReadmeCorePlugin'
         }
 
         readmeSub {
             id = 'readme-sub'
-            implementationClass = 'com.blankj.plugin.ReadmeSubPlugin'
+            implementationClass = 'com.blankj.plugin.readme.ReadmeSubPlugin'
         }
     }
 }
 
 dependencies {
-    compile gradleApi()
-    compile localGroovy()
+    implementation gradleApi()
+    implementation localGroovy()
+    implementation "commons-io:commons-io:2.6"
 }
+
+sourceSets {
+    main {
+        groovy {
+            srcDirs += 'src/main/java'
+        }
+    }
+}
\ No newline at end of file
diff --git a/buildSrc/settings.gradle b/buildSrc/settings.gradle
new file mode 100644
index 0000000000..8a313c3b99
--- /dev/null
+++ b/buildSrc/settings.gradle
@@ -0,0 +1,8 @@
+//dependencyResolutionManagement {
+//    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+//    repositories {
+//        google()
+//        mavenCentral()
+//        jcenter() // Warning: this repository is going to shut down soon
+//    }
+//}
\ No newline at end of file
diff --git a/buildSrc/src/main/groovy/Config.groovy b/buildSrc/src/main/groovy/Config.groovy
new file mode 100644
index 0000000000..9a8d69d659
--- /dev/null
+++ b/buildSrc/src/main/groovy/Config.groovy
@@ -0,0 +1,89 @@
+class Config {
+
+    static applicationId = 'com.blankj.androidutilcode'
+    static appName = 'Util'
+
+    static compileSdkVersion = 29
+    static minSdkVersion = 14
+    static targetSdkVersion = 29
+    static versionCode = 1_031_001
+    static versionName = '1.31.1'// E.g. 1.9.72 => 1,009,072
+
+    // lib version
+    static gradlePluginVersion = '4.1.0'
+    static kotlinVersion = '1.3.72'
+    static androidxVersion = '1.0.0'
+
+    static modules = [
+            /*Don't delete this line*/
+            /*Generated by "module_config.json"*/
+            plugin_api_gradle_plugin   : new ModuleConfig(isApply: true , useLocal: true , localPath: "./plugin/api-gradle-plugin"),
+            plugin_bus_gradle_plugin   : new ModuleConfig(isApply: true , useLocal: true , localPath: "./plugin/bus-gradle-plugin"),
+            plugin_lib_base_transform  : new ModuleConfig(isApply: true , useLocal: true , localPath: "./plugin/lib/base-transform", remotePath: "com.blankj:base-transform:1.0"),
+            plugin_buildSrc_plugin     : new ModuleConfig(isApply: true , useLocal: true , localPath: "./plugin/buildSrc-plugin"),
+            feature_mock               : new ModuleConfig(isApply: false, useLocal: true , localPath: "./feature/mock"),
+            feature_launcher_app       : new ModuleConfig(isApply: true , useLocal: true , localPath: "./feature/launcher/app"),
+            feature_main_app           : new ModuleConfig(isApply: false, useLocal: true , localPath: "./feature/main/app"),
+            feature_main_pkg           : new ModuleConfig(isApply: true , useLocal: true , localPath: "./feature/main/pkg"),
+            feature_subutil_app        : new ModuleConfig(isApply: false, useLocal: true , localPath: "./feature/subutil/app"),
+            feature_subutil_pkg        : new ModuleConfig(isApply: true , useLocal: true , localPath: "./feature/subutil/pkg"),
+            feature_subutil_export     : new ModuleConfig(isApply: true , useLocal: true , localPath: "./feature/subutil/export"),
+            feature_utilcode_app       : new ModuleConfig(isApply: false, useLocal: true , localPath: "./feature/utilcode/app"),
+            feature_utilcode_pkg       : new ModuleConfig(isApply: true , useLocal: true , localPath: "./feature/utilcode/pkg"),
+            feature_utilcode_export    : new ModuleConfig(isApply: true , useLocal: true , localPath: "./feature/utilcode/export", remotePath: "com.blankj:utilcode-export:1.1"),
+            lib_base                   : new ModuleConfig(isApply: true , useLocal: true , localPath: "./lib/base"),
+            lib_common                 : new ModuleConfig(isApply: true , useLocal: true , localPath: "./lib/common"),
+            lib_subutil                : new ModuleConfig(isApply: true , useLocal: true , localPath: "./lib/subutil"),
+            lib_utilcode               : new ModuleConfig(isApply: true , useLocal: true , localPath: "./lib/utilcode", remotePath: "com.blankj:utilcodex:$Config.versionName"),
+            lib_utildebug              : new ModuleConfig(isApply: true , useLocal: true , localPath: "./lib/utildebug"),
+            lib_utildebug_no_op        : new ModuleConfig(isApply: true , useLocal: true , localPath: "./lib/utildebug-no-op"),
+            /*Don't delete this line*/
+    ]
+
+    static plugins = [
+            plugin_gradle  : new PluginConfig(path: "com.android.tools.build:gradle:$gradlePluginVersion"),
+            plugin_kotlin  : new PluginConfig(path: "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"),
+            // 上传到 maven
+            plugin_maven   : new PluginConfig(path: "com.github.dcendents:android-maven-gradle-plugin:2.1", id: "com.github.dcendents.android-maven"),
+
+            // 上传新版本插件更新 path 中的版本号，并设置 isApply = false
+            // 通过 mavenLocal 上传本地版本，设置 isApply = true 即可应用插件来调试，最后通过 bintrayUpload 来发布插件
+            plugin_api     : new PluginConfig(isApply: true, useLocal: false, path: "com.blankj:api-gradle-plugin:1.5", id: "com.blankj.api"),
+            //./gradlew clean :plugin_api-gradle-plugin:mavenLocal     // 上传到本地 mavenLocal
+            //./gradlew clean :plugin_api-gradle-plugin:bintrayUpload  // 上传到 jcenter
+            plugin_bus     : new PluginConfig(isApply: true, useLocal: false, path: "com.blankj:bus-gradle-plugin:2.6", id: "com.blankj.bus"),
+            //./gradlew clean :plugin_bus-gradle-plugin:mavenLocal     // 上传到本地 mavenLocal
+            //./gradlew clean :plugin_bus-gradle-plugin:bintrayUpload  // 上传到 jcenter
+            plugin_buildSrc: new PluginConfig(isApply: false, useLocal: false, path: "com.blankj:buildSrc-plugin:1.0", id: "com.blankj.buildSrc"),
+            //./gradlew clean :plugin_bus-gradle-plugin:mavenLocal     // 上传到本地 mavenLocal
+            //./gradlew clean :plugin_bus-gradle-plugin:bintrayUpload  // 上传到 jcenter
+    ]
+
+    static libs = [
+            androidx_appcompat : new LibConfig(path: "androidx.appcompat:appcompat:$androidxVersion"),
+            androidx_material  : new LibConfig(path: "com.google.android.material:material:$androidxVersion"),
+            androidx_multidex  : new LibConfig(path: "androidx.multidex:multidex:2.0.0"),
+            androidx_constraint: new LibConfig(path: "androidx.constraintlayout:constraintlayout:1.1.3"),
+
+            kotlin             : new LibConfig(path: "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"),
+
+            leakcanary         : new LibConfig(path: "com.squareup.leakcanary:leakcanary-android:2.1"),
+
+            free_proguard      : new LibConfig(path: "com.blankj:free-proguard:1.0.2"),
+            swipe_panel        : new LibConfig(path: "com.blankj:swipe-panel:1.2"),
+
+            gson               : new LibConfig(path: "com.google.code.gson:gson:2.8.5"),
+            glide              : new LibConfig(path: "com.github.bumptech.glide:glide:4.7.1"),
+            retrofit           : new LibConfig(path: "com.squareup.retrofit2:retrofit:2.4.0"),
+            commons_io         : new LibConfig(path: "commons-io:commons-io:2.6"),
+
+            eventbus_lib       : new LibConfig(path: "org.greenrobot:eventbus:3.1.1"),
+            eventbus_processor : new LibConfig(path: "org.greenrobot:eventbus-annotation-processor:3.0.1"),
+
+            photo_view         : new LibConfig(path: "com.github.chrisbanes:PhotoView:2.0.0"),
+
+            test_junit         : new LibConfig(path: "junit:junit:4.12"),
+            test_robolectric   : new LibConfig(path: "org.robolectric:robolectric:4.3.1"),
+    ]
+}
+//./gradlew clean :lib_utilcode:bintrayUpload
\ No newline at end of file
diff --git a/buildSrc/src/main/groovy/ConfigUtils.groovy b/buildSrc/src/main/groovy/ConfigUtils.groovy
new file mode 100644
index 0000000000..6a09d2f2d9
--- /dev/null
+++ b/buildSrc/src/main/groovy/ConfigUtils.groovy
@@ -0,0 +1,99 @@
+import org.gradle.api.Project
+import org.gradle.api.ProjectEvaluationListener
+import org.gradle.api.ProjectState
+import org.gradle.api.invocation.Gradle
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/13
+ *     desc  :
+ * </pre>
+ */
+class ConfigUtils {
+
+    static init(Gradle gradle) {
+        generateDep(gradle)
+        addCommonGradle(gradle)
+        TaskDurationUtils.init(gradle)
+    }
+
+    /**
+     * 根据 depConfig 生成 dep
+     */
+    private static void generateDep(Gradle gradle) {
+        def configs = [:]
+        for (Map.Entry<String, ModuleConfig> entry : Config.modules.entrySet()) {
+            def (name, config) = [entry.key, entry.value]
+            if (config.useLocal) {
+                config.dep = gradle.rootProject.findProject(name)
+            } else {
+                config.dep = config.remotePath
+            }
+            configs.put(name, config)
+        }
+        GLog.l("generateDep = ${GLog.object2String(configs)}")
+    }
+
+    private static addCommonGradle(Gradle gradle) {
+        gradle.addProjectEvaluationListener(new ProjectEvaluationListener() {
+            @Override
+            void beforeEvaluate(Project project) {
+                // 在 project 的 build.gradle 前 do sth.
+                if (project.name.contains("plugin")) {
+                    return
+                }
+                if (project.name.endsWith("_app")) {
+                    GLog.l(project.toString() + " applies buildApp.gradle")
+                    project.apply {
+                        from "${project.rootDir.path}/buildApp.gradle"
+                    }
+                } else {
+                    GLog.l(project.toString() + " applies buildLib.gradle")
+                    project.apply {
+                        from "${project.rootDir.path}/buildLib.gradle"
+                    }
+                }
+            }
+
+            @Override
+            void afterEvaluate(Project project, ProjectState state) {
+                // 在 project 的 build.gradle 末 do sth.
+            }
+        })
+    }
+
+    static getApplyPlugins() {
+        def plugins = [:]
+        for (Map.Entry<String, PluginConfig> entry : Config.plugins.entrySet()) {
+            if (entry.value.isApply) {
+                plugins.put(entry.key, entry.value)
+            }
+        }
+        GLog.d("getApplyPlugins = ${GLog.object2String(plugins)}")
+        return plugins
+    }
+
+    static getApplyPkgs() {
+        def pkgs = [:]
+        for (Map.Entry<String, ModuleConfig> entry : Config.modules.entrySet()) {
+            if (entry.value.isApply && entry.key.endsWith("_pkg")) {
+                pkgs.put(entry.key, entry.value)
+            }
+        }
+        GLog.d("getApplyPkgs = ${GLog.object2String(pkgs)}")
+        return pkgs
+    }
+
+    static getApplyExports() {
+        def exports = [:]
+        for (Map.Entry<String, ModuleConfig> entry : Config.modules.entrySet()) {
+            if (entry.value.isApply && entry.key.endsWith("_export")) {
+                exports.put(entry.key, entry.value)
+            }
+        }
+        GLog.d("getApplyExports = ${GLog.object2String(exports)}")
+        return exports
+    }
+}
diff --git a/buildSrc/src/main/groovy/GLog.groovy b/buildSrc/src/main/groovy/GLog.groovy
new file mode 100644
index 0000000000..6a5554fc46
--- /dev/null
+++ b/buildSrc/src/main/groovy/GLog.groovy
@@ -0,0 +1,208 @@
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/13
+ *     desc  :
+ * </pre>
+ */
+class GLog {
+
+    def static debugSwitch = true
+
+    static d(Object... contents) {
+        if (!debugSwitch) return contents
+        return l(contents)
+    }
+
+    static l(Object... contents) {
+        StringBuilder sb = new StringBuilder()
+        sb.append(LogConst.BORDER_TOP)
+        sb.append(borderMsg(processContents(contents)))
+        sb.append(LogConst.BORDER_BTM)
+        print sb.toString()
+        return contents
+    }
+
+    private static borderMsg(String msg) {
+        StringBuilder sb = new StringBuilder()
+        object2String(msg).split(LogConst.LINE_SEP).each { line ->
+            sb.append(LogConst.BORDER_LFT).append(line).append(LogConst.LINE_SEP)
+        }
+        return sb
+    }
+
+    private static processContents(final Object... contents) {
+        String body = LogConst.NULL
+        if (contents != null) {
+            if (contents.length == 1) {
+                body = object2String(contents[0])
+            } else {
+                StringBuilder sb = new StringBuilder()
+                int i = 0
+                for (int len = contents.length; i < len; ++i) {
+                    Object content = contents[i]
+                    sb.append("args[$i] = ")
+                            .append(object2String(content))
+                            .append(LogConst.LINE_SEP)
+                }
+                body = sb.toString()
+            }
+        }
+        return body.length() == 0 ? LogConst.NOTHING : body
+    }
+
+    static String object2String(Object object) {
+        if (object == null) return "null";
+        if (object.getClass().isArray()) return LogFormatter.array2String(object);
+        if (object instanceof List) return LogFormatter.list2String(object);
+        if (object instanceof Map) return LogFormatter.map2String(object);
+        if (object instanceof Throwable) return LogFormatter.throwable2String(object);
+        return object.toString();
+    }
+
+    static class LogFormatter {
+
+        private static array2String(Object object) {
+            if (object instanceof Object[]) {
+                return Arrays.deepToString((Object[]) object);
+            } else if (object instanceof boolean[]) {
+                return Arrays.toString((boolean[]) object);
+            } else if (object instanceof byte[]) {
+                return Arrays.toString((byte[]) object);
+            } else if (object instanceof char[]) {
+                return Arrays.toString((char[]) object);
+            } else if (object instanceof double[]) {
+                return Arrays.toString((double[]) object);
+            } else if (object instanceof float[]) {
+                return Arrays.toString((float[]) object);
+            } else if (object instanceof int[]) {
+                return Arrays.toString((int[]) object);
+            } else if (object instanceof long[]) {
+                return Arrays.toString((long[]) object);
+            } else if (object instanceof short[]) {
+                return Arrays.toString((short[]) object);
+            }
+            throw new IllegalArgumentException("Array has incompatible type: " + object.getClass());
+        }
+
+        private static list2String(List list) {
+            StringBuilder sb = new StringBuilder()
+            sb.append("[")
+            list.each { v ->
+                if (v instanceof Map || v instanceof List) {
+                    sb.append(String.format("$LogConst.LINE_SEP%${deep++ * 8}s${object2String(v)},", ""))
+                    deep--
+                } else {
+                    sb.append(String.format("$LogConst.LINE_SEP%${deep * 8}s$v,", ""))
+                }
+            }
+            sb.deleteCharAt(sb.length() - 1)
+            if (deep - 1 == 0) {
+                sb.append("$LogConst.LINE_SEP]")
+            } else {
+                sb.append(String.format("$LogConst.LINE_SEP%${(deep - 1) * 8}s]", ""))
+            }
+            return sb.toString()
+        }
+
+        private static deep = 1;
+
+        private static map2String(Map map) {
+            StringBuilder sb = new StringBuilder()
+            sb.append("[")
+            map.each { k, v ->
+                if (v instanceof Map || v instanceof List) {
+                    sb.append(String.format("$LogConst.LINE_SEP%${deep++ * 8}s%-26s: ${object2String(v)},", "", k))
+                    deep--
+                } else {
+                    sb.append(String.format("$LogConst.LINE_SEP%${deep * 8}s%-26s: $v,", "", k))
+                }
+            }
+            sb.deleteCharAt(sb.length() - 1)
+            if (deep - 1 == 0) {
+                sb.append("$LogConst.LINE_SEP]")
+            } else {
+                sb.append(String.format("$LogConst.LINE_SEP%${(deep - 1) * 8}s]", ""))
+            }
+            return sb.toString()
+        }
+
+        private static throwable2String(Throwable throwable) {
+            final List<Throwable> throwableList = new ArrayList<>();
+            while (throwable != null && !throwableList.contains(throwable)) {
+                throwableList.add(throwable);
+                throwable = throwable.getCause();
+            }
+            final int size = throwableList.size();
+            final List<String> frames = new ArrayList<>();
+            List<String> nextTrace = getStackFrameList(throwableList.get(size - 1));
+            for (int i = size; --i >= 0;) {
+                final List<String> trace = nextTrace;
+                if (i != 0) {
+                    nextTrace = getStackFrameList(throwableList.get(i - 1));
+                    removeCommonFrames(trace, nextTrace);
+                }
+                if (i == size - 1) {
+                    frames.add(throwableList.get(i).toString());
+                } else {
+                    frames.add(" Caused by: " + throwableList.get(i).toString());
+                }
+                frames.addAll(trace);
+            }
+            StringBuilder sb = new StringBuilder();
+            for (final String element : frames) {
+                sb.append(element).append(LogConst.LINE_SEP);
+            }
+            return sb.toString();
+        }
+
+        private static List<String> getStackFrameList(final Throwable throwable) {
+            final StringWriter sw = new StringWriter();
+            final PrintWriter pw = new PrintWriter(sw, true);
+            throwable.printStackTrace(pw);
+            final String stackTrace = sw.toString();
+            final StringTokenizer frames = new StringTokenizer(stackTrace, LogConst.LINE_SEP);
+            final List<String> list = new ArrayList<>();
+            boolean traceStarted = false;
+            while (frames.hasMoreTokens()) {
+                final String token = frames.nextToken();
+                // Determine if the line starts with <whitespace>at
+                final int at = token.indexOf("at");
+                if (at != -1 && token.substring(0, at).trim().isEmpty()) {
+                    traceStarted = true;
+                    list.add(token);
+                } else if (traceStarted) {
+                    break;
+                }
+            }
+            return list;
+        }
+
+        private static void removeCommonFrames(final List<String> causeFrames, final List<String> wrapperFrames) {
+            int causeFrameIndex = causeFrames.size() - 1;
+            int wrapperFrameIndex = wrapperFrames.size() - 1;
+            while (causeFrameIndex >= 0 && wrapperFrameIndex >= 0) {
+                // Remove the frame from the cause trace if it is the same
+                // as in the wrapper trace
+                final String causeFrame = causeFrames.get(causeFrameIndex);
+                final String wrapperFrame = wrapperFrames.get(wrapperFrameIndex);
+                if (causeFrame.equals(wrapperFrame)) {
+                    causeFrames.remove(causeFrameIndex);
+                }
+                causeFrameIndex--;
+                wrapperFrameIndex--;
+            }
+        }
+    }
+
+    static class LogConst {
+        static LINE_SEP = System.getProperty("line.separator");
+        static BORDER_TOP = "┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────" + LINE_SEP
+        static BORDER_LFT = "│ ";
+        static BORDER_BTM = "└────────────────────────────────────────────────────────────────────────────────────────────────────────────────" + LINE_SEP
+
+        static final NOTHING = "log nothing";
+        static final NULL = "null";
+    }
+}
diff --git a/buildSrc/src/main/groovy/LibConfig.groovy b/buildSrc/src/main/groovy/LibConfig.groovy
new file mode 100644
index 0000000000..6369553ba0
--- /dev/null
+++ b/buildSrc/src/main/groovy/LibConfig.groovy
@@ -0,0 +1,29 @@
+class LibConfig {
+
+    String path
+
+    String getGroupId() {
+        String[] splits = path.split(":")
+        return splits.length == 3 ? splits[0] : null
+    }
+
+    String getArtifactId() {
+        String[] splits = path.split(":")
+        return splits.length == 3 ? splits[1] : null
+    }
+
+    String getVersion() {
+        String[] splits = path.split(":")
+        return splits.length == 3 ? splits[2] : null
+    }
+
+    @Override
+    String toString() {
+        return "LibConfig { path = $path }"
+    }
+
+    static String getFlag(boolean b) {
+        return b ? "✅" : "❌"
+    }
+}
+
diff --git a/buildSrc/src/main/groovy/ModuleConfig.groovy b/buildSrc/src/main/groovy/ModuleConfig.groovy
new file mode 100644
index 0000000000..291abd8ffe
--- /dev/null
+++ b/buildSrc/src/main/groovy/ModuleConfig.groovy
@@ -0,0 +1,35 @@
+class ModuleConfig {
+
+    boolean isApply   // 是否应用
+    boolean useLocal  // 是否使用本地的
+    String localPath  // 本地路径
+    String remotePath // 远程路径
+    def dep          // 根据条件生成项目最终的依赖项
+
+    String getGroupId() {
+        String[] splits = remotePath.split(":")
+        return splits.length == 3 ? splits[0] : null
+    }
+
+    String getArtifactId() {
+        String[] splits = remotePath.split(":")
+        return splits.length == 3 ? splits[1] : null
+    }
+
+    String getVersion() {
+        String[] splits = remotePath.split(":")
+        return splits.length == 3 ? splits[2] : null
+    }
+
+    @Override
+    String toString() {
+        return "ModuleConfig { isApply = ${getFlag(isApply)}" +
+                ", dep = " + dep +
+                " }"
+    }
+
+    static String getFlag(boolean b) {
+        return b ? "✅" : "❌"
+    }
+}
+
diff --git a/buildSrc/src/main/groovy/PluginConfig.groovy b/buildSrc/src/main/groovy/PluginConfig.groovy
new file mode 100644
index 0000000000..3811c6a0ca
--- /dev/null
+++ b/buildSrc/src/main/groovy/PluginConfig.groovy
@@ -0,0 +1,35 @@
+final class PluginConfig {
+
+    boolean isApply = true  // 是否应用
+    boolean useLocal        // 是否使用本地的
+    String path             // 插件路径
+    String id               // 插件 ID
+
+    String getGroupId() {
+        String[] splits = path.split(":")
+        return splits.length == 3 ? splits[0] : null
+    }
+
+    String getArtifactId() {
+        String[] splits = path.split(":")
+        return splits.length == 3 ? splits[1] : null
+    }
+
+    String getVersion() {
+        String[] splits = path.split(":")
+        return splits.length == 3 ? splits[2] : null
+    }
+
+    @Override
+    String toString() {
+        return "PluginConfig { isApply = ${getFlag(isApply)}" +
+                ", useLocal = ${getFlag(useLocal)}" +
+                ", path = " + path +
+                ", id = " + id +
+                " }"
+    }
+
+    static String getFlag(boolean b) {
+        return b ? "✅" : "❌"
+    }
+}
\ No newline at end of file
diff --git a/buildSrc/src/main/groovy/TaskDurationUtils.groovy b/buildSrc/src/main/groovy/TaskDurationUtils.groovy
new file mode 100644
index 0000000000..6aacfcf30f
--- /dev/null
+++ b/buildSrc/src/main/groovy/TaskDurationUtils.groovy
@@ -0,0 +1,91 @@
+import org.gradle.BuildListener
+import org.gradle.BuildResult
+import org.gradle.api.Task
+import org.gradle.api.execution.TaskExecutionListener
+import org.gradle.api.initialization.Settings
+import org.gradle.api.invocation.Gradle
+import org.gradle.api.tasks.TaskState
+
+import java.text.SimpleDateFormat
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/22
+ *     desc  :
+ * </pre>
+ */
+class TaskDurationUtils {
+
+    static List<TaskInfo> taskInfoList = []
+    static long startMillis
+
+    static init(Gradle grd) {
+        startMillis = System.currentTimeMillis()
+        grd.addListener(new TaskExecutionListener() {
+            @Override
+            void beforeExecute(Task task) {
+                task.ext.startTime = System.currentTimeMillis()
+            }
+
+            @Override
+            void afterExecute(Task task, TaskState state) {
+                def exeDuration = System.currentTimeMillis() - task.ext.startTime
+                if (exeDuration >= 500) {
+                    taskInfoList.add(new TaskInfo(task: task, exeDuration: exeDuration))
+                }
+            }
+        })
+        grd.addBuildListener(new BuildListener() {
+            @Override
+            void beforeSettings(Settings settings) {
+                super.beforeSettings(settings)
+            }
+
+            @Override
+            void buildStarted(Gradle gradle) {}
+
+            @Override
+            void settingsEvaluated(Settings settings) {}
+
+            @Override
+            void projectsLoaded(Gradle gradle) {}
+
+            @Override
+            void projectsEvaluated(Gradle gradle) {}
+
+            @Override
+            void buildFinished(BuildResult buildResult) {
+                if (!taskInfoList.isEmpty()) {
+                    Collections.sort(taskInfoList, new Comparator<TaskInfo>() {
+                        @Override
+                        int compare(TaskInfo t, TaskInfo t1) {
+                            return t1.exeDuration - t.exeDuration
+                        }
+                    })
+                    StringBuilder sb = new StringBuilder()
+                    int buildSec = (System.currentTimeMillis() - startMillis) / 1000;
+                    int m = buildSec / 60;
+                    int s = buildSec % 60;
+                    def timeInfo = (m == 0 ? "${s}s" : "${m}m ${s}s (${buildSec}s)")
+                    sb.append("BUILD FINISHED in $timeInfo\n")
+                    taskInfoList.each {
+                        sb.append(String.format("%7sms %s\n", it.exeDuration, it.task.path))
+                    }
+                    def content = sb.toString()
+                    GLog.d(content)
+                    File file = new File(grd.rootProject.buildDir.getAbsolutePath(),
+                            "build_time_records_" + new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date()) + ".txt")
+                    file.getParentFile().mkdirs()
+                    file.write(content)
+                }
+            }
+        })
+    }
+
+    private static class TaskInfo {
+        Task task
+        long exeDuration
+    }
+}
diff --git a/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeCorePlugin.groovy b/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeCorePlugin.groovy
deleted file mode 100644
index af86a19c6e..0000000000
--- a/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeCorePlugin.groovy
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.blankj.plugin
-
-import org.gradle.api.Plugin
-import org.gradle.api.Project
-
-class ReadmeCorePlugin implements Plugin<Project> {
-
-    @Override
-    void apply(Project project) {
-        project.extensions.create('readme', ReadmeExtension)
-
-        project.task('readmeTask') {
-            doLast {
-                println "readmeTask start..."
-
-                def ext = project['readme'] as ReadmeExtension
-                def readmeCN = ext.readmeCnFile
-                def readmeEng = ext.readmeFile
-
-                readmeOfUtilCode2Eng(readmeCN, readmeEng)
-
-                println "readmeTask finished."
-            }
-        }
-    }
-
-    static def readmeOfUtilCode2Eng(File readmeCN, File readmeEng) {
-        FormatUtils.format(readmeCN)
-        def lines = readmeCN.readLines("UTF-8")
-        def sb = new StringBuilder()
-        readmeCN.eachLine { line ->
-            if (line.contains("* ###")) {
-                String utilsName = line.substring(line.indexOf("[") + 1, line.indexOf("Utils"))
-                sb.append("* ### About ").append(utilsName).append(line.substring(line.indexOf(" -> ")))
-            } else if (line.contains(": ") && !line.contains("[")) {
-                sb.append(line.substring(0, line.indexOf(':')).trim())
-            } else {
-                sb.append(line)
-            }
-            sb.append(FormatUtils.LINE_SEP)
-        }
-        readmeEng.write(sb.toString(), "UTF-8")
-    }
-}
-
-
diff --git a/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeExtension.groovy b/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeExtension.groovy
deleted file mode 100644
index 91ca50af95..0000000000
--- a/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeExtension.groovy
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.blankj.plugin
-
-class ReadmeExtension {
-
-    File readmeFile
-    File readmeCnFile
-
-}
diff --git a/buildSrc/src/main/groovy/com/blankj/plugin/FormatUtils.groovy b/buildSrc/src/main/java/com/blankj/plugin/readme/FormatUtils.groovy
similarity index 96%
rename from buildSrc/src/main/groovy/com/blankj/plugin/FormatUtils.groovy
rename to buildSrc/src/main/java/com/blankj/plugin/readme/FormatUtils.groovy
index bc82b9f0f6..f617ff2eae 100644
--- a/buildSrc/src/main/groovy/com/blankj/plugin/FormatUtils.groovy
+++ b/buildSrc/src/main/java/com/blankj/plugin/readme/FormatUtils.groovy
@@ -1,9 +1,9 @@
-package com.blankj.plugin
+package com.blankj.plugin.readme
 
 class FormatUtils {
 
     static def LINE_SEP = System.getProperty("line.separator")
-    static def LONG_SPACE = "                                        "
+    static def LONG_SPACE = "                                                                  "
 
     static def format(File readmeCN) {
         def sb = new StringBuilder(),
diff --git a/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeCorePlugin.groovy b/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeCorePlugin.groovy
new file mode 100644
index 0000000000..8f3cf47780
--- /dev/null
+++ b/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeCorePlugin.groovy
@@ -0,0 +1,52 @@
+package com.blankj.plugin.readme
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+class ReadmeCorePlugin implements Plugin<Project> {
+
+    @Override
+    void apply(Project project) {
+        project.extensions.create('readme', ReadmeExtension)
+
+        project.task('readmeTask') {
+            doLast {
+                println "readmeTask start..."
+
+                def ext = project['readme'] as ReadmeExtension
+                def readmeCN = ext.readmeCnFile
+                def readmeEng = ext.readmeFile
+
+                readmeOfUtilCode2Eng(readmeCN, readmeEng)
+
+                println "readmeTask finished."
+            }
+        }
+    }
+
+    static def readmeOfUtilCode2Eng(File readmeCN, File readmeEng) {
+        FormatUtils.format(readmeCN)
+        def lines = readmeCN.readLines("UTF-8")
+        def sb = new StringBuilder()
+        readmeCN.eachLine { line ->
+            if (line.contains("* ###")) {
+                if (line.contains("UtilsTransActivity")) {
+                    sb.append(line)
+                } else {
+                    String utilsName = line.substring(line.indexOf("[") + 1, line.indexOf("Utils"))
+                    sb.append("* ### About ").append(utilsName).append(line.substring(line.indexOf(" -> ")))
+                }
+            } else if (line.contains(": ") && !line.contains("[")) {
+                sb.append(line.substring(0, line.indexOf(':')).trim())
+            } else if (line.contains("打个小广告") || line.contains("基你太美")) {
+                return
+            } else {
+                sb.append(line)
+            }
+            sb.append(FormatUtils.LINE_SEP)
+        }
+        readmeEng.write(sb.toString(), "UTF-8")
+    }
+}
+
+
diff --git a/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeExtension.groovy b/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeExtension.groovy
new file mode 100644
index 0000000000..789e683c80
--- /dev/null
+++ b/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeExtension.groovy
@@ -0,0 +1,8 @@
+package com.blankj.plugin.readme
+
+class ReadmeExtension {
+
+    File readmeFile
+    File readmeCnFile
+
+}
diff --git a/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeSubPlugin.groovy b/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeSubPlugin.groovy
similarity index 85%
rename from buildSrc/src/main/groovy/com/blankj/plugin/ReadmeSubPlugin.groovy
rename to buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeSubPlugin.groovy
index 84f688f312..bade51bbf4 100644
--- a/buildSrc/src/main/groovy/com/blankj/plugin/ReadmeSubPlugin.groovy
+++ b/buildSrc/src/main/java/com/blankj/plugin/readme/ReadmeSubPlugin.groovy
@@ -1,11 +1,8 @@
-package com.blankj.plugin
+package com.blankj.plugin.readme
 
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 
-import static FormatUtils.LINE_SEP;
-
-
 class ReadmeSubPlugin implements Plugin<Project> {
 
     @Override
@@ -30,9 +27,9 @@ class ReadmeSubPlugin implements Plugin<Project> {
     static def readmeOfSubUtil2Eng(File readmeCN, File readmeEng) {
         FormatUtils.format(readmeCN)
         def lines = readmeCN.readLines("UTF-8"),
-            sb = new StringBuilder("## How to use" + LINE_SEP
-                    + LINE_SEP +
-                    "You should copy the following classes which you want to use in your project." + LINE_SEP),
+            sb = new StringBuilder("## How to use" + FormatUtils.LINE_SEP
+                    + FormatUtils.LINE_SEP +
+                    "You should copy the following classes which you want to use in your project." + FormatUtils.LINE_SEP),
             i = 3,
             size = lines.size()
         for (; i < size; ++i) {
@@ -45,7 +42,7 @@ class ReadmeSubPlugin implements Plugin<Project> {
             } else {
                 sb.append(line)
             }
-            sb.append(LINE_SEP)
+            sb.append(FormatUtils.LINE_SEP)
         }
         readmeEng.write(sb.toString(), "UTF-8")
     }
diff --git a/bus-gradle-plugin/.gitignore b/bus-gradle-plugin/.gitignore
deleted file mode 100755
index 4f1e170e06..0000000000
--- a/bus-gradle-plugin/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-/build
-local.properties
\ No newline at end of file
diff --git a/bus-gradle-plugin/build.gradle b/bus-gradle-plugin/build.gradle
deleted file mode 100755
index f44fe029a4..0000000000
--- a/bus-gradle-plugin/build.gradle
+++ /dev/null
@@ -1,39 +0,0 @@
-plugins {
-    id 'groovy'
-    id 'java-gradle-plugin' // for gradlePlugin DSL
-    id 'com.gradle.plugin-publish' version "0.10.0" //for pluginPublish.gradle
-}
-
-apply {
-    from "../gradle/pluginPublish.gradle"
-    if (rootProject.localDebugPlugin) {
-        plugin 'maven'
-        from "../gradle/localMavenUpload.gradle"
-    } else {
-        plugin 'com.github.dcendents.android-maven'
-        plugin 'com.jfrog.bintray'
-        from "../gradle/bintrayUploadJava.gradle"
-    }
-}
-
-gradlePlugin {
-    plugins {
-        busPlugin {
-            id = 'com.blankj.bus'
-            implementationClass = 'com.blankj.bus.BusPlugin'
-        }
-    }
-}
-
-dependencies {
-    implementation dep.gradle
-    implementation dep.javassist
-    implementation dep.commons_io
-    implementation dep.junit
-}
-
-group = rootProject.group
-version = rootProject.versionName
-
-//./gradlew bus-gradle-plugin:bintrayUpload
-//./gradlew publishPlugins
diff --git a/bus-gradle-plugin/project.properties b/bus-gradle-plugin/project.properties
deleted file mode 100755
index 23eb9a7453..0000000000
--- a/bus-gradle-plugin/project.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-project.name=StaticBusPlugin
-project.siteUrl=https://github.com/Blankj/StaticBus
-project.gitUrl=https://github.com/Blankj/StaticBus.git
-
-#javadoc
-javadoc.name=StaticBus
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusExtension.groovy b/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusExtension.groovy
deleted file mode 100755
index 407a671996..0000000000
--- a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusExtension.groovy
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.blankj.bus
-
-class BusExtension {
-
-}
diff --git a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusInject.groovy b/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusInject.groovy
deleted file mode 100755
index 32a37308b8..0000000000
--- a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusInject.groovy
+++ /dev/null
@@ -1,77 +0,0 @@
-package com.blankj.bus
-
-import com.blankj.util.ZipUtils
-import javassist.CtClass
-import javassist.CtMethod
-import org.apache.commons.io.FileUtils
-
-class BusInject {
-
-    static void start(HashMap<String, String> bus, File busJar) {
-        String jarPath = busJar.getAbsolutePath()
-        String decompressedJarPath = jarPath.substring(0, jarPath.length() - 4);
-        File decompressedJar = new File(decompressedJarPath)
-        ZipUtils.unzipFile(busJar, decompressedJar)
-
-        CtClass busUtils = Config.mPool.get(Config.CLASS_BUS_UTILS)
-        CtMethod callMethod = busUtils.getDeclaredMethod("post");
-        callMethod.insertAfter(getInsertContent(bus));
-        busUtils.writeFile(decompressedJarPath)
-        busUtils.defrost();
-        FileUtils.forceDelete(busJar)
-        ZipUtils.zipFile(decompressedJar, busJar)
-        FileUtils.forceDelete(decompressedJar)
-    }
-
-    private static String getInsertContent(HashMap<String, String> bus) {
-        StringBuilder sb = new StringBuilder();
-        bus.each { String key, String val ->
-            String name = key
-            String[] method = val.split(' ')
-            String returnType = method[0]
-            String methodName = method[1]
-
-            sb.append('if ("').append(name).append('".equals($1)) {\n')
-
-            int st = methodName.indexOf('(')
-            int end = methodName.length()
-            String params = methodName.substring(st + 1, end - 1);
-            if (params != '') {
-                String[] paramArr = params.split(",")
-
-                StringBuilder args = new StringBuilder()
-                for (int i = 0; i < paramArr.length; i++) {
-                    if (paramArr[i] == 'char') {
-                        args.append(',$2[').append(i).append('].toString().charAt(0)')
-                    } else if (paramArr[i] == 'boolean') {
-                        args.append(',Boolean.parseBoolean($2[').append(i).append('].toString())')
-                    } else if (paramArr[i] == 'byte') {
-                        args.append(',Byte.parseByte($2[').append(i).append('].toString())')
-                    } else if (paramArr[i] == 'short') {
-                        args.append(',Short.parseShort($2[').append(i).append('].toString())')
-                    } else if (paramArr[i] == 'int') {
-                        args.append(',Integer.parseInt($2[').append(i).append('].toString())')
-                    } else if (paramArr[i] == 'long') {
-                        args.append(',Long.parseLong($2[').append(i).append('].toString())')
-                    } else if (paramArr[i] == 'float') {
-                        args.append(',Float.parseFloat($2[').append(i).append('].toString())')
-                    } else if (paramArr[i] == 'double') {
-                        args.append(',Double.parseDouble($2[').append(i).append('].toString())')
-                    } else {
-                        args.append(',(').append(paramArr[i]).append(')$2[').append(i).append(']')
-                    }
-                }
-                methodName = methodName.substring(0, st + 1) + args.substring(1) + ")"
-            }
-
-            if (returnType.equals('void')) {
-                sb.append(methodName).append(';\n').append('return null;\n')
-            } else {
-                sb.append('return ($w)').append(methodName).append(';\n')
-            }
-            sb.append("}")
-        }
-        sb.append('android.util.Log.e("BusUtils", "bus of <" + $1 + "> didn\'t exist.");')
-        return sb.toString()
-    }
-}
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusPlugin.groovy b/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusPlugin.groovy
deleted file mode 100755
index f1a2ac2264..0000000000
--- a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusPlugin.groovy
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.blankj.bus
-
-import com.android.build.gradle.AppExtension
-import com.android.build.gradle.AppPlugin
-import com.blankj.util.LogUtils
-import com.blankj.util.Utils
-import org.gradle.api.Plugin
-import org.gradle.api.Project
-
-class BusPlugin implements Plugin<Project> {
-
-    @Override
-    void apply(Project project) {
-        if (project.plugins.hasPlugin(AppPlugin)) {
-            Utils.init(project)
-
-            LogUtils.l('project(' + project.name + ') apply bus gradle plugin!')
-
-            project.extensions.create(Config.EXT_NAME, BusExtension)
-
-            def android = project.extensions.getByType(AppExtension)
-
-            android.registerTransform(new BusTransform())
-            project.afterEvaluate {
-                def ext = project[Config.EXT_NAME] as BusExtension
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusScan.groovy b/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusScan.groovy
deleted file mode 100755
index 036289ac08..0000000000
--- a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusScan.groovy
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.blankj.bus
-
-import com.blankj.util.ZipUtils
-import com.blankj.utilcode.util.BusUtils
-import groovy.io.FileType
-import javassist.CtClass
-import javassist.CtMethod
-import org.apache.commons.io.FileUtils
-
-class BusScan {
-
-    HashMap<String, String> busMap
-    List<File> scans
-    File busJar
-
-    BusScan() {
-        busMap = [:]
-        scans = []
-    }
-
-    void scanJar(File jar) {
-        File tmp = new File(jar.getParent(), "temp_" + jar.getName())
-        ZipUtils.unzipFile(jar, tmp)
-        scanDir(tmp)
-        FileUtils.forceDelete(tmp)
-    }
-
-    void scanDir(File root) {
-        String rootPath = root.getAbsolutePath()
-        if (!rootPath.endsWith(Config.FILE_SEP)) {
-            rootPath += Config.FILE_SEP
-        }
-
-        if (root.isDirectory()) {
-            root.eachFileRecurse(FileType.FILES) { File file ->
-                def fileName = file.name
-                if (!fileName.endsWith('.class')
-                        || fileName.startsWith('R$')
-                        || fileName == 'R.class'
-                        || fileName == 'BuildConfig.class') {
-                    return
-                }
-
-                def filePath = file.absolutePath
-                def packagePath = filePath.replace(rootPath, '')
-                def className = packagePath.replace(Config.FILE_SEP, ".")
-                // delete .class
-                className = className.substring(0, className.length() - 6)
-
-                CtClass ctClass = Config.mPool.get(className)
-
-                CtMethod[] methods = ctClass.getDeclaredMethods();
-                for (CtMethod method : methods) {
-                    if (method.hasAnnotation(BusUtils.Subscribe)) {
-                        String name = method.getAnnotation(BusUtils.Subscribe).name()
-                        String sign = method.getReturnType().getName() + ' ' + method.getLongName()
-                        busMap.put(name, sign)
-                    }
-                }
-            }
-        }
-    }
-}
diff --git a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusTransform.groovy b/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusTransform.groovy
deleted file mode 100755
index c76e365e36..0000000000
--- a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/BusTransform.groovy
+++ /dev/null
@@ -1,119 +0,0 @@
-package com.blankj.bus
-
-import com.android.build.api.transform.*
-import com.android.build.gradle.internal.pipeline.TransformManager
-import com.blankj.util.JsonUtils
-import com.blankj.util.LogUtils
-import com.blankj.util.Utils
-import org.apache.commons.io.FileUtils
-
-class BusTransform extends Transform {
-
-    @Override
-    String getName() {
-        return "busTransform"
-    }
-
-    @Override
-    Set<QualifiedContent.ContentType> getInputTypes() {
-        return TransformManager.CONTENT_CLASS
-    }
-
-    @Override
-    Set<? super QualifiedContent.Scope> getScopes() {
-        return TransformManager.SCOPE_FULL_PROJECT
-    }
-
-    @Override
-    boolean isIncremental() {
-        return false
-    }
-
-    @Override
-    void transform(TransformInvocation transformInvocation)
-            throws TransformException, InterruptedException, IOException {
-        super.transform(transformInvocation)
-        LogUtils.l(getName() + " started")
-
-        long stTime = System.currentTimeMillis();
-
-        def inputs = transformInvocation.getInputs()
-        def referencedInputs = transformInvocation.getReferencedInputs()
-        def outputProvider = transformInvocation.getOutputProvider()
-        def isIncremental = transformInvocation.isIncremental()
-
-        outputProvider.deleteAll()
-
-        Config.initClassPool()
-        BusScan busScan = new BusScan()
-
-        inputs.each { TransformInput input ->
-            input.directoryInputs.each { DirectoryInput dirInput ->// 遍历文件夹
-                File dir = dirInput.file
-                Config.mPool.appendClassPath(dir.absolutePath)
-
-                def dest = outputProvider.getContentLocation(
-                        dirInput.name,
-                        dirInput.contentTypes,
-                        dirInput.scopes,
-                        Format.DIRECTORY
-                )
-                FileUtils.copyDirectory(dir, dest)
-
-                LogUtils.l("scan " + dirInput.name)
-                busScan.scanDir(dir)
-            }
-
-            input.jarInputs.each { JarInput jarInput ->// 遍历 jar 文件
-                File jar = jarInput.file
-                Config.mPool.appendClassPath(jarInput.file.absolutePath)
-
-                def jarName = jarInput.name
-                def dest = outputProvider.getContentLocation(
-                        jarName,
-                        jarInput.contentTypes,
-                        jarInput.scopes,
-                        Format.JAR
-                )
-                FileUtils.copyFile(jar, dest)
-
-                if (jumpScan(jarName)) {
-                    LogUtils.l("jump " + jarName)
-                    return
-                }
-
-                if (jarName.startsWith("com.blankj:bus:")) {
-                    busScan.busJar = dest
-                    return
-                }
-
-                LogUtils.l("scan " + jarName)
-                busScan.scanJar(jar)
-            }
-        }
-
-        if (busScan.busJar != null) {
-            File jsonFile = new File(Utils.project.projectDir.getAbsolutePath(), "__bus__.json")
-            String busJson = JsonUtils.getFormatJson(busScan.busMap)
-            FileUtils.write(jsonFile, busJson)
-            LogUtils.l(busJson)
-            BusInject.start(busScan.busMap, busScan.busJar)
-        } else {
-            LogUtils.l('u should <implementation "com.blankj:utilcode:1.30.+"> ' +
-                    'or <implementation "com.blankj:bus:1.0+">')
-        }
-
-        LogUtils.l(getName() + " finished: " + (System.currentTimeMillis() - stTime) + "ms")
-    }
-
-    private static boolean jumpScan(String jarName) {
-        boolean isExcept = false
-        for (String except : Config.EXCEPTS) {
-            if (jarName.startsWith(except)) {
-                isExcept = true
-                break
-            }
-        }
-        isExcept
-    }
-}
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/Config.groovy b/bus-gradle-plugin/src/main/groovy/com/blankj/bus/Config.groovy
deleted file mode 100755
index 90a17bc9f1..0000000000
--- a/bus-gradle-plugin/src/main/groovy/com/blankj/bus/Config.groovy
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.blankj.bus
-
-import com.blankj.util.Utils
-import javassist.ClassPool
-
-class Config {
-
-    public static final String EXT_NAME = 'bus'
-
-    public static final List<String> EXCEPTS = [
-            'com.android.support:',
-            'com.android.support.constraint:',
-            'android.arch.',
-            'com.blankj:utilcode:'
-    ]
-
-    public static final String FILE_SEP = System.getProperty("file.separator")
-
-    public static final String CLASS_BUS_UTILS = 'com.blankj.utilcode.util.BusUtils'
-
-    public static ClassPool mPool
-
-    static void initClassPool() {
-        mPool = new ClassPool(null)
-        mPool.appendSystemPath()
-        // 加入本地 android 包
-        mPool.appendClassPath(Utils.getProject().android.bootClasspath[0].toString())
-    }
-}
diff --git a/bus-gradle-plugin/src/main/java/com/blankj/util/JsonUtils.java b/bus-gradle-plugin/src/main/java/com/blankj/util/JsonUtils.java
deleted file mode 100755
index 8f9e5938bd..0000000000
--- a/bus-gradle-plugin/src/main/java/com/blankj/util/JsonUtils.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.blankj.util;
-
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-
-import org.json.simple.JSONArray;
-import org.json.simple.JSONObject;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/10/08
- *     desc  :
- * </pre>
- */
-public class JsonUtils {
-
-    public static String getFormatJson(Object object) {
-        Gson gson = new GsonBuilder().setPrettyPrinting().create();
-        return gson.toJson(object);
-    }
-}
diff --git a/bus-gradle-plugin/src/main/java/com/blankj/util/LogUtils.java b/bus-gradle-plugin/src/main/java/com/blankj/util/LogUtils.java
deleted file mode 100755
index b52fc5aca9..0000000000
--- a/bus-gradle-plugin/src/main/java/com/blankj/util/LogUtils.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.blankj.util;
-
-import org.gradle.api.logging.Logger;
-
-public final class LogUtils {
-
-    private static Logger mLogger = Utils.getProject().getLogger();
-    private static String PREFIX = "PLUGIN-BUS >>> ";
-
-    public static void l(Object content) {
-        mLogger.lifecycle(PREFIX + content);
-    }
-
-    public static void d(Object content) {
-        mLogger.debug(PREFIX + content);
-    }
-
-    public static void i(Object content) {
-        mLogger.info(PREFIX + content);
-    }
-
-    public static void w(Object content) {
-        mLogger.warn(PREFIX + content);
-    }
-
-    public static void e(Object content) {
-        mLogger.error(PREFIX + content);
-    }
-}
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/main/java/com/blankj/util/Utils.java b/bus-gradle-plugin/src/main/java/com/blankj/util/Utils.java
deleted file mode 100755
index 6ff30e37e9..0000000000
--- a/bus-gradle-plugin/src/main/java/com/blankj/util/Utils.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.blankj.util;
-
-import org.gradle.api.Project;
-
-public final class Utils {
-
-    private static Project mProject;
-
-    public static void init(Project project) {
-        mProject = project;
-    }
-
-    public static Project getProject() {
-        return mProject;
-    }
-}
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/main/java/com/blankj/util/ZipUtils.java b/bus-gradle-plugin/src/main/java/com/blankj/util/ZipUtils.java
deleted file mode 100755
index d96eb864cb..0000000000
--- a/bus-gradle-plugin/src/main/java/com/blankj/util/ZipUtils.java
+++ /dev/null
@@ -1,436 +0,0 @@
-package com.blankj.util;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-import java.util.zip.ZipOutputStream;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/27
- *     desc  : utils about zip or jar
- * </pre>
- */
-public final class ZipUtils {
-
-    private static final int BUFFER_LEN = 8192;
-
-    private ZipUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFiles    The source of files.
-     * @param zipFilePath The path of ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<String> srcFiles,
-                                   final String zipFilePath)
-            throws IOException {
-        return zipFiles(srcFiles, zipFilePath, null);
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFilePaths The paths of source files.
-     * @param zipFilePath  The path of ZIP file.
-     * @param comment      The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<String> srcFilePaths,
-                                   final String zipFilePath,
-                                   final String comment)
-            throws IOException {
-        if (srcFilePaths == null || zipFilePath == null) return false;
-        ZipOutputStream zos = null;
-        try {
-            zos = new ZipOutputStream(new FileOutputStream(zipFilePath));
-            for (String srcFile : srcFilePaths) {
-                if (!zipFile(getFileByPath(srcFile), "", zos, comment)) return false;
-            }
-            return true;
-        } finally {
-            if (zos != null) {
-                zos.finish();
-                zos.close();
-            }
-        }
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFiles The source of files.
-     * @param zipFile  The ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<File> srcFiles, final File zipFile)
-            throws IOException {
-        return zipFiles(srcFiles, zipFile, null);
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFiles The source of files.
-     * @param zipFile  The ZIP file.
-     * @param comment  The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<File> srcFiles,
-                                   final File zipFile,
-                                   final String comment)
-            throws IOException {
-        if (srcFiles == null || zipFile == null) return false;
-        ZipOutputStream zos = null;
-        try {
-            zos = new ZipOutputStream(new FileOutputStream(zipFile));
-            for (File srcFile : srcFiles) {
-                if (!zipFile(srcFile, "", zos, comment)) return false;
-            }
-            return true;
-        } finally {
-            if (zos != null) {
-                zos.finish();
-                zos.close();
-            }
-        }
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFilePath The path of source file.
-     * @param zipFilePath The path of ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final String srcFilePath,
-                                  final String zipFilePath)
-            throws IOException {
-        return zipFile(getFileByPath(srcFilePath), getFileByPath(zipFilePath), null);
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFilePath The path of source file.
-     * @param zipFilePath The path of ZIP file.
-     * @param comment     The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final String srcFilePath,
-                                  final String zipFilePath,
-                                  final String comment)
-            throws IOException {
-        return zipFile(getFileByPath(srcFilePath), getFileByPath(zipFilePath), comment);
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFile The source of file.
-     * @param zipFile The ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final File srcFile,
-                                  final File zipFile)
-            throws IOException {
-        return zipFile(srcFile, zipFile, null);
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFile The source of file.
-     * @param zipFile The ZIP file.
-     * @param comment The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final File srcFile,
-                                  final File zipFile,
-                                  final String comment)
-            throws IOException {
-        if (srcFile == null || zipFile == null) return false;
-        ZipOutputStream zos = null;
-        try {
-            zos = new ZipOutputStream(new FileOutputStream(zipFile));
-            return zipFile(srcFile, "", zos, comment);
-        } finally {
-            if (zos != null) {
-                zos.close();
-            }
-        }
-    }
-
-    private static boolean zipFile(final File srcFile,
-                                   String rootPath,
-                                   final ZipOutputStream zos,
-                                   final String comment)
-            throws IOException {
-        rootPath = rootPath + (isSpace(rootPath) ? "" : File.separator) + srcFile.getName();
-        if (srcFile.isDirectory()) {
-            File[] fileList = srcFile.listFiles();
-            if (fileList == null || fileList.length <= 0) {
-                ZipEntry entry = new ZipEntry(rootPath + '/');
-                entry.setComment(comment);
-                zos.putNextEntry(entry);
-                zos.closeEntry();
-            } else {
-                for (File file : fileList) {
-                    if (!zipFile(file, rootPath, zos, comment)) return false;
-                }
-            }
-        } else {
-            InputStream is = null;
-            try {
-                is = new BufferedInputStream(new FileInputStream(srcFile));
-                ZipEntry entry = new ZipEntry(rootPath);
-                entry.setComment(comment);
-                zos.putNextEntry(entry);
-                byte buffer[] = new byte[BUFFER_LEN];
-                int len;
-                while ((len = is.read(buffer, 0, BUFFER_LEN)) != -1) {
-                    zos.write(buffer, 0, len);
-                }
-                zos.closeEntry();
-            } finally {
-                if (is != null) {
-                    is.close();
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Unzip the file.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @param destDirPath The path of destination directory.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFile(final String zipFilePath,
-                                       final String destDirPath)
-            throws IOException {
-        return unzipFileByKeyword(zipFilePath, destDirPath, null);
-    }
-
-    /**
-     * Unzip the file.
-     *
-     * @param zipFile The ZIP file.
-     * @param destDir The destination directory.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFile(final File zipFile,
-                                       final File destDir)
-            throws IOException {
-        return unzipFileByKeyword(zipFile, destDir, null);
-    }
-
-    /**
-     * Unzip the file by keyword.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @param destDirPath The path of destination directory.
-     * @param keyword     The keyboard.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFileByKeyword(final String zipFilePath,
-                                                final String destDirPath,
-                                                final String keyword)
-            throws IOException {
-        return unzipFileByKeyword(getFileByPath(zipFilePath), getFileByPath(destDirPath), keyword);
-    }
-
-    /**
-     * Unzip the file by keyword.
-     *
-     * @param zipFile The ZIP file.
-     * @param destDir The destination directory.
-     * @param keyword The keyboard.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFileByKeyword(final File zipFile,
-                                                final File destDir,
-                                                final String keyword)
-            throws IOException {
-        if (zipFile == null || destDir == null) return null;
-        List<File> files = new ArrayList<>();
-        ZipFile zip = new ZipFile(zipFile);
-        Enumeration<?> entries = zip.entries();
-        try {
-            if (isSpace(keyword)) {
-                while (entries.hasMoreElements()) {
-                    ZipEntry entry = ((ZipEntry) entries.nextElement());
-                    if (!unzipChildFile(destDir, files, zip, entry)) return files;
-                }
-            } else {
-                while (entries.hasMoreElements()) {
-                    ZipEntry entry = ((ZipEntry) entries.nextElement());
-                    if (entry.getName().contains(keyword)) {
-                        if (!unzipChildFile(destDir, files, zip, entry)) return files;
-                    }
-                }
-            }
-        } finally {
-            zip.close();
-        }
-        return files;
-    }
-
-    private static boolean unzipChildFile(final File destDir,
-                                          final List<File> files,
-                                          final ZipFile zip,
-                                          final ZipEntry entry) throws IOException {
-        File file = new File(destDir, entry.getName());
-        files.add(file);
-        if (entry.isDirectory()) {
-            return createOrExistsDir(file);
-        } else {
-            if (!createOrExistsFile(file)) return false;
-            InputStream in = null;
-            OutputStream out = null;
-            try {
-                in = new BufferedInputStream(zip.getInputStream(entry));
-                out = new BufferedOutputStream(new FileOutputStream(file));
-                byte buffer[] = new byte[BUFFER_LEN];
-                int len;
-                while ((len = in.read(buffer)) != -1) {
-                    out.write(buffer, 0, len);
-                }
-            } finally {
-                if (in != null) {
-                    in.close();
-                }
-                if (out != null) {
-                    out.close();
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Return the files' path in ZIP file.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @return the files' path in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getFilesPath(final String zipFilePath)
-            throws IOException {
-        return getFilesPath(getFileByPath(zipFilePath));
-    }
-
-    /**
-     * Return the files' path in ZIP file.
-     *
-     * @param zipFile The ZIP file.
-     * @return the files' path in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getFilesPath(final File zipFile)
-            throws IOException {
-        if (zipFile == null) return null;
-        List<String> paths = new ArrayList<>();
-        ZipFile zip = new ZipFile(zipFile);
-        Enumeration<?> entries = zip.entries();
-        while (entries.hasMoreElements()) {
-            paths.add(((ZipEntry) entries.nextElement()).getName());
-        }
-        zip.close();
-        return paths;
-    }
-
-    /**
-     * Return the files' comment in ZIP file.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @return the files' comment in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getComments(final String zipFilePath)
-            throws IOException {
-        return getComments(getFileByPath(zipFilePath));
-    }
-
-    /**
-     * Return the files' comment in ZIP file.
-     *
-     * @param zipFile The ZIP file.
-     * @return the files' comment in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getComments(final File zipFile)
-            throws IOException {
-        if (zipFile == null) return null;
-        List<String> comments = new ArrayList<>();
-        ZipFile zip = new ZipFile(zipFile);
-        Enumeration<?> entries = zip.entries();
-        while (entries.hasMoreElements()) {
-            ZipEntry entry = ((ZipEntry) entries.nextElement());
-            comments.add(entry.getComment());
-        }
-        zip.close();
-        return comments;
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean createOrExistsFile(final File file) {
-        if (file == null) return false;
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
diff --git a/bus-gradle-plugin/src/main/java/com/blankj/utilcode/util/BusUtils.java b/bus-gradle-plugin/src/main/java/com/blankj/utilcode/util/BusUtils.java
deleted file mode 100755
index 507919ff49..0000000000
--- a/bus-gradle-plugin/src/main/java/com/blankj/utilcode/util/BusUtils.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.blankj.utilcode.util;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-public final class BusUtils {
-
-    @Target({ElementType.METHOD})
-    @Retention(RetentionPolicy.CLASS)
-    public @interface Subscribe {
-        String name() default "";
-    }
-}
\ No newline at end of file
diff --git a/bus-gradle-plugin/src/test/java/com/blankj/bus/BusTest.java b/bus-gradle-plugin/src/test/java/com/blankj/bus/BusTest.java
deleted file mode 100755
index 2cd7afa639..0000000000
--- a/bus-gradle-plugin/src/test/java/com/blankj/bus/BusTest.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.blankj.bus;
-
-
-import org.junit.Test;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/09/21
- *     desc  :
- * </pre>
- */
-public class BusTest {
-
-    @Test
-    public void test() throws Exception {
-        String methodName = "()";
-        int st = methodName.indexOf('(');
-        int end = methodName.length();
-        System.out.println((st + 1) + "" + (end - 1));
-        String substring = methodName.substring(st + 1, end - 1);
-
-        System.out.println(substring.equals(""));
-    }
-}
diff --git a/config.gradle b/config.gradle
deleted file mode 100644
index 09b61c795f..0000000000
--- a/config.gradle
+++ /dev/null
@@ -1,170 +0,0 @@
-ext {
-    applicationId = 'com.blankj.androidutilcode'
-    appName = 'Util'
-
-    compileSdkVersion = 27
-    minSdkVersion = 14
-    targetSdkVersion = 27
-    versionCode = 1_021_003
-    versionName = '1.21.3'// E.g. 1.9.72 => 1,009,072
-
-    localDebugPlugin = false
-
-    // lib version
-    kotlin_version = '1.3.0'
-    support_version = '27.1.1'
-    leakcanary_version = '1.5.4'
-
-    dep = [
-            // plugin
-            gradle                     : "com.android.tools.build:gradle:3.2.1",
-            kotlin_gradle_plugin       : "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version",
-            android_maven_gradle_plugin: "com.github.dcendents:android-maven-gradle-plugin:2.1",
-            gradle_bintray_plugin      : "com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4",
-            bus_gradle_plugin          : "com.blankj:bus-gradle-plugin:1.3",
-
-            // lib
-            support                    : [
-                    appcompat_v7: "com.android.support:appcompat-v7:$support_version",
-                    design      : "com.android.support:design:$support_version",
-                    multidex    : "com.android.support:multidex:1.0.2",
-            ],
-            constraint                 : "com.android.support.constraint:constraint-layout:1.1.3",
-            kotlin                     : "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version",
-            leakcanary                 : [
-                    android      : "com.squareup.leakcanary:leakcanary-android:$leakcanary_version",
-                    android_no_op: "com.squareup.leakcanary:leakcanary-android-no-op:$leakcanary_version",
-            ],
-            free_proguard              : "com.blankj:free-proguard:0.0.7",
-            bus                        : "com.blankj:bus:1.0",
-            adapt_screen               : "com.blankj:adapt-screen:0.0.3",
-
-            gson                       : "com.google.code.gson:gson:2.8.2",
-            glide                      : "com.github.bumptech.glide:glide:4.7.1",
-            retrofit                   : "com.squareup.retrofit2:retrofit:2.4.0",
-            javassist                  : "org.javassist:javassist:3.23.1-GA",
-            commons_io                 : "commons-io:commons-io:2.5",
-
-            junit                      : "junit:junit:4.12",
-            robolectric                : "org.robolectric:robolectric:3.1.2",
-    ]
-
-    configAndroidDomain = this.&configAndroidDomain
-    configAppDependencies = this.&configAppDependencies
-}
-
-def configAndroidDomain(Project pro, String applicationIdSuffix = "") {
-    configCommon(pro)
-    if (pro.plugins.hasPlugin("com.android.application")) {
-        configAppAndroidDomain(pro, applicationIdSuffix)
-    } else {
-        configLibAndroidDomain(pro)
-    }
-}
-
-def configCommon(Project pro) {
-    pro.android {
-        compileSdkVersion rootProject.compileSdkVersion
-        defaultConfig {
-            minSdkVersion rootProject.minSdkVersion
-            versionCode rootProject.versionCode
-            versionName rootProject.versionName
-        }
-
-        lintOptions {
-            abortOnError false
-        }
-
-        testOptions.unitTests.all {
-            testLogging {
-                events 'passed', 'skipped', 'failed', 'standardOut', 'standardError'
-            }
-        }
-    }
-}
-
-
-def configAppAndroidDomain(Project pro, String applicationIdSuffix = "") {
-    configField(pro)
-    configSigning(pro)
-    configApkName(pro)
-    pro.android {
-        defaultConfig {
-            applicationId rootProject.applicationId + applicationIdSuffix
-            targetSdkVersion rootProject.targetSdkVersion
-            multiDexEnabled true
-        }
-
-        buildTypes {
-            release {
-                minifyEnabled true
-                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            }
-        }
-
-        sourceSets {
-            main.res.srcDirs += 'src/main/res-core'
-            main.res.srcDirs += 'src/main/res-sub'
-        }
-    }
-
-    pro.dependencies {
-        // LeakCanary
-        debugImplementation dep.leakcanary.android
-        releaseImplementation dep.leakcanary.android_no_op
-    }
-}
-
-def configField(Project pro) {
-    pro.android.defaultConfig {
-        resValue "string", "app_name", rootProject.appName
-    }
-}
-
-def configSigning(Project pro) {
-    File signPropertiesFile = file('sign/keystore.properties')
-    if (!signPropertiesFile.exists()) return
-    pro.android {
-        Properties properties = new Properties()
-        properties.load(new FileInputStream(signPropertiesFile))
-        signingConfigs {
-            release {
-                storeFile file(properties['keystore'])
-                storePassword properties['storePassword']
-                keyAlias properties['keyAlias']
-                keyPassword properties['keyPassword']
-            }
-        }
-        buildTypes.release.signingConfig signingConfigs.release
-    }
-}
-
-def configApkName(Project pro) {
-    pro.android.applicationVariants.all { variant ->
-        if (variant.buildType.name != "debug") {
-            variant.getPackageApplication().outputDirectory = new File(project.rootDir.absolutePath + "/apk")
-            variant.getPackageApplication().outputScope.apkDatas.forEach { apkData ->
-                apkData.outputFileName = "util_" + variant.versionName.replace(".", "_") + ".apk"
-            }
-        }
-    }
-}
-
-def configLibAndroidDomain(Project pro) {
-    pro.android {
-        buildTypes {
-            release {
-                minifyEnabled false
-                consumerProguardFiles 'proguard-rules.pro'
-                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            }
-        }
-    }
-
-    afterEvaluate {
-        generateReleaseBuildConfig.enabled = false
-        generateDebugBuildConfig.enabled = false
-    }
-}
-
-//./gradlew utilcode:bintrayUpload
\ No newline at end of file
diff --git a/config/flavor.gradle b/config/flavor.gradle
new file mode 100644
index 0000000000..25c1801983
--- /dev/null
+++ b/config/flavor.gradle
@@ -0,0 +1,22 @@
+android {
+    flavorDimensions "env"
+    productFlavors {
+        dev {
+            dimension "env"
+        }
+
+        production {
+            dimension "env"
+        }
+    }
+
+    variantFilter { variant ->
+        def flavorNames = variant.flavors*.name
+        def buildTypeName = variant.buildType.name
+
+        // production 包不允许 debug 构建
+        if (flavorNames.contains("production") && buildTypeName.contains("debug")) {
+            variant.setIgnore(true)
+        }
+    }
+}
\ No newline at end of file
diff --git a/config/publish.gradle b/config/publish.gradle
new file mode 100644
index 0000000000..7608215123
--- /dev/null
+++ b/config/publish.gradle
@@ -0,0 +1,226 @@
+/*
+ 1. add
+    signing.keyId=xx
+    signing.password=xx
+    signing.secretKeyRingFile=/Users/xx/secring.gpg
+    ossrhUsername=xx
+    ossrhPassword=xx
+    in root local.properties
+
+ 2. copy the file to the directory of gradle, and apply the file in the module
+ ext {
+    groupId = Config.modules.lib_utilcode.groupId
+    artifactId = Config.modules.lib_utilcode.artifactId
+    version = Config.modules.lib_utilcode.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+ apply from: "${rootDir.path}/config/publish.gradle"
+
+ 3. execute following command to publish
+ ./gradlew :xxmodule:publish2Local  -> upload to mavenLocal
+ ./gradlew :xxmodule:publish2Remote -> upload to mavenCentral
+*/
+
+apply plugin: 'maven-publish'
+apply plugin: 'signing'
+
+ext.multiPublishMode = true
+
+File localPropertiesFile = project.rootProject.file("local.properties");
+if (!localPropertiesFile.exists()) {
+    return
+}
+
+Properties properties = new Properties()
+properties.load(new FileInputStream(localPropertiesFile))
+properties.each { name, value -> ext[name] = value }
+
+afterEvaluate {
+    def ext = project.ext
+    publishing {
+        publications {
+            release(MavenPublication) {
+                groupId ext.groupId
+                artifactId ext.artifactId
+                version ext.version
+
+                if (isAndroidEnv(project)) {
+                    if (project.ext.multiPublishMode) {
+                        artifact("$buildDir/outputs/aar/${project.getName()}-release.aar")
+                        artifact sourcesJar
+                    } else {
+                        from project.components.release
+                    }
+                } else {
+                    from project.components.java
+                }
+
+                pom {
+                    name = ext.artifactId
+                    description = ext.artifactId
+                    url = ext.website
+
+                    licenses {
+                        license {
+                            name = 'The Apache Software License, Version 2.0'
+                            url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                        }
+                    }
+                    developers {
+                        developer {
+                            id = ext.ossrhUsername
+                            name = ext.ossrhUsername
+                        }
+                    }
+                    scm {
+                        url = ext.website
+                        connection = ext.website
+                        developerConnection = ext.website + ".git"
+                    }
+
+                    if (project.ext.multiPublishMode) {
+                        withXml {
+                            def dependenciesNode = asNode().getAt('dependencies')[0] ?:
+                                    asNode().appendNode('dependencies')
+
+                            configurations.api.getDependencies().each {
+                                dep -> addDependency(project, dependenciesNode, dep, "compile")
+                            }
+                            configurations.implementation.getDependencies().each {
+                                dep -> addDependency(project, dependenciesNode, dep, "runtime")
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        repositories {
+            maven {
+                // s01 is newest
+                def releasesUrl = "https://s01.oss.sonatype.org/content/repositories/releases/"
+                def snapshotUrl = "https://s01.oss.sonatype.org/content/repositories/snapshots/"
+                url = version.toUpperCase().endsWith('SNAPSHOT') ? snapshotUrl : releasesUrl
+
+                credentials {
+                    username ossrhUsername
+                    password ossrhPassword
+                }
+            }
+        }
+    }
+
+    signing {
+        sign publishing.publications
+    }
+}
+
+private void addDependency(Project project, def dependenciesNode, Dependency dep, String scope) {
+    if (dep.group == null || dep.version == null || dep.name == null || dep.name == "unspecified") {
+        return
+    }
+
+    final dependencyNode = dependenciesNode.appendNode('dependency')
+    dependencyNode.appendNode('scope', scope)
+
+    if (dep.version == 'unspecified') {
+        // 检测 module 中的 dependencies 是否有源码依赖
+        // 如果是源码依赖，而且没有在 config 中配置 remotePath，
+        // 那么发布到仓库，其他地方依赖该库时会找不到源码的那个库
+        println "publish -> module(unspecified) <${dep.group}:${dep.name}:${dep.version}>"
+        if (project.ext.groupId || project.ext.version) {
+            throw new GradleException("The module of <" + dep.name + "> should set groupId & version.")
+        }
+        // 源码依赖，但配置了 remotePath，让 pom 中写入 remotePath
+        println("publish -> module(wrapped) <${project.ext.groupId}:${name}:${project.ext.version}>")
+
+        dependencyNode.appendNode('groupId', project.ext.pomGroupID)
+        dependencyNode.appendNode('artifactId', dep.name)
+        dependencyNode.appendNode('version', project.ext.pomVersion)
+    } else {
+        dependencyNode.appendNode('groupId', dep.group)
+        dependencyNode.appendNode('artifactId', dep.name)
+        dependencyNode.appendNode('version', dep.version)
+        println("publish -> library <${dep.group}:${dep.name}:${dep.version}>")
+    }
+
+    if (!dep.transitive) {
+        // In case of non transitive dependency,
+        // all its dependencies should be force excluded from them POM file
+        final exclusionNode = dependencyNode.appendNode('exclusions').appendNode('exclusion')
+        exclusionNode.appendNode('groupId', '*')
+        exclusionNode.appendNode('artifactId', '*')
+    } else if (!dep.properties.excludeRules.empty) {
+        // For transitive with exclusions, all exclude rules should be added to the POM file
+        final exclusions = dependencyNode.appendNode('exclusions')
+        dep.properties.excludeRules.each { ExcludeRule rule ->
+            final exclusionNode = exclusions.appendNode('exclusion')
+            exclusionNode.appendNode('groupId', rule.group ?: '*')
+            exclusionNode.appendNode('artifactId', rule.module ?: '*')
+        }
+    }
+}
+
+if (isAndroidEnv(project)) {
+    // This generates sources.jar
+    task sourcesJar(type: Jar) {
+        classifier = 'sources'
+        from android.sourceSets.main.java.source
+    }
+
+    task javadoc(type: Javadoc) {
+        source = android.sourceSets.main.java.source
+        classpath += configurations.compile
+        classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+    }
+
+    task javadocJar(type: Jar, dependsOn: javadoc) {
+        classifier = 'javadoc'
+        from javadoc.destinationDir
+    }
+} else {
+    task sourcesJar(type: Jar, dependsOn: classes) {
+        classifier = 'sources'
+        from sourceSets.main.allSource
+    }
+
+    task javadocJar(type: Jar, dependsOn: javadoc) {
+        classifier = 'javadoc'
+        from javadoc.destinationDir
+    }
+}
+
+if (project.hasProperty("kotlin")) {
+    // Disable creating javadocs
+    project.tasks.withType(Javadoc) {
+        enabled = false
+    }
+}
+
+javadoc {
+    options {
+        encoding "UTF-8"
+        charSet 'UTF-8'
+        author true
+        version project.ext.version
+        links "http://docs.oracle.com/javase/7/docs/api"
+        title "${project.ext.artifactId} ${project.ext.version}"
+    }
+}
+
+artifacts {
+    archives javadocJar
+    archives sourcesJar
+}
+
+static def isAndroidEnv(Project project) {
+    return project.getPlugins().hasPlugin('com.android.application') || project.getPlugins().hasPlugin('com.android.library')
+}
+
+task publish2Local(type: GradleBuild) {
+    tasks = ['assemble', 'publishReleasePublicationToMavenLocal']
+}
+
+task publish2Remote(type: GradleBuild) {
+    tasks = ['assemble', 'publishReleasePublicationToMavenRepository']
+}
\ No newline at end of file
diff --git a/app/.gitignore b/feature/launcher/app/.gitignore
similarity index 100%
rename from app/.gitignore
rename to feature/launcher/app/.gitignore
diff --git a/feature/launcher/app/build.gradle b/feature/launcher/app/build.gradle
new file mode 100644
index 0000000000..8f2b6d205d
--- /dev/null
+++ b/feature/launcher/app/build.gradle
@@ -0,0 +1,5 @@
+apply plugin: 'kotlin-kapt'
+
+dependencies {
+    kapt Config.libs.eventbus_processor.path
+}
\ No newline at end of file
diff --git a/launcher/app/proguard-rules.pro b/feature/launcher/app/proguard-rules.pro
similarity index 100%
rename from launcher/app/proguard-rules.pro
rename to feature/launcher/app/proguard-rules.pro
diff --git a/feature/launcher/app/src/main/AndroidManifest.xml b/feature/launcher/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..4f033c06a6
--- /dev/null
+++ b/feature/launcher/app/src/main/AndroidManifest.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.launcher.app">
+
+    <application
+        android:name=".LauncherApp"
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:name="com.blankj.main.pkg.MainActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:screenOrientation="user"
+            android:theme="@style/SplashTheme"
+            android:windowSoftInputMode="stateHidden">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/feature/launcher/app/src/main/java/com/blankj/launcher/app/LauncherApp.java b/feature/launcher/app/src/main/java/com/blankj/launcher/app/LauncherApp.java
new file mode 100644
index 0000000000..7dc22cee69
--- /dev/null
+++ b/feature/launcher/app/src/main/java/com/blankj/launcher/app/LauncherApp.java
@@ -0,0 +1,28 @@
+package com.blankj.launcher.app;
+
+import com.blankj.common.CommonApplication;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/10/12
+ *     desc  :
+ * </pre>
+ */
+public class LauncherApp extends CommonApplication {
+
+    private static LauncherApp sInstance;
+
+    public static LauncherApp getInstance() {
+        return sInstance;
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        sInstance = this;
+    }
+}
+
+
diff --git a/launcher/app/.gitignore b/feature/main/app/.gitignore
similarity index 100%
rename from launcher/app/.gitignore
rename to feature/main/app/.gitignore
diff --git a/feature/main/app/build.gradle b/feature/main/app/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/launcher/pkg/proguard-rules.pro b/feature/main/app/proguard-rules.pro
similarity index 100%
rename from launcher/pkg/proguard-rules.pro
rename to feature/main/app/proguard-rules.pro
diff --git a/feature/main/app/src/main/AndroidManifest.xml b/feature/main/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..bb8c3398d4
--- /dev/null
+++ b/feature/main/app/src/main/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.main.app">
+
+    <application
+        android:name="com.blankj.main.app.MainApp"
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:name="com.blankj.main.pkg.MainActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:screenOrientation="user"
+            android:theme="@style/SplashTheme"
+            android:windowSoftInputMode="stateHidden">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/feature/main/app/src/main/java/com/blankj/main/app/MainApp.java b/feature/main/app/src/main/java/com/blankj/main/app/MainApp.java
new file mode 100644
index 0000000000..7b083b92ba
--- /dev/null
+++ b/feature/main/app/src/main/java/com/blankj/main/app/MainApp.java
@@ -0,0 +1,35 @@
+package com.blankj.main.app;
+
+import android.content.Context;
+
+import com.blankj.common.CommonApplication;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/10/12
+ *     desc  :
+ * </pre>
+ */
+public class MainApp extends CommonApplication {
+
+    private static MainApp sInstance;
+
+    public static MainApp getInstance() {
+        return sInstance;
+    }
+
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(base);
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        sInstance = this;
+    }
+}
+
+
diff --git a/launcher/pkg/.gitignore b/feature/main/pkg/.gitignore
similarity index 100%
rename from launcher/pkg/.gitignore
rename to feature/main/pkg/.gitignore
diff --git a/feature/main/pkg/build.gradle b/feature/main/pkg/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/lib/resource/proguard-rules.pro b/feature/main/pkg/proguard-rules.pro
similarity index 100%
rename from lib/resource/proguard-rules.pro
rename to feature/main/pkg/proguard-rules.pro
diff --git a/feature/main/pkg/src/main/AndroidManifest.xml b/feature/main/pkg/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..1cfdba8f69
--- /dev/null
+++ b/feature/main/pkg/src/main/AndroidManifest.xml
@@ -0,0 +1,13 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.main.pkg">
+
+    <application>
+        <activity
+            android:name=".MainActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:screenOrientation="user"
+            android:theme="@style/SplashTheme"
+            android:windowSoftInputMode="stateHidden" />
+    </application>
+
+</manifest>
diff --git a/feature/main/pkg/src/main/java/com/blankj/main/pkg/MainActivity.kt b/feature/main/pkg/src/main/java/com/blankj/main/pkg/MainActivity.kt
new file mode 100644
index 0000000000..b00aba9585
--- /dev/null
+++ b/feature/main/pkg/src/main/java/com/blankj/main/pkg/MainActivity.kt
@@ -0,0 +1,74 @@
+package com.blankj.main.pkg
+
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.ActionBarDrawerToggle
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.subutil.export.api.SubUtilApi
+import com.blankj.utilcode.export.api.UtilCodeApi
+import com.blankj.utilcode.util.ApiUtils
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.ClickUtils
+import com.blankj.utilcode.util.CollectionUtils
+import kotlinx.android.synthetic.main.activity_main.*
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  : MainActivity
+ * ```
+ */
+class MainActivity : CommonActivity() {
+
+    override fun isSwipeBack(): Boolean {
+        return false
+    }
+
+    override fun bindDrawer(): Boolean {
+        return true
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.activity_main
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        window.setBackgroundDrawable(null)
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(mainRv, CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemClick(R.string.core_util, true) {
+                    ApiUtils.getApi(UtilCodeApi::class.java)?.startUtilCodeActivity(this)
+                },
+                CommonItemClick(R.string.sub_util, true) {
+                    ApiUtils.getApi(SubUtilApi::class.java)?.startSubUtilActivity(this)
+                }
+        ))
+
+        launcherMainCtl.setExpandedTitleColor(Color.TRANSPARENT)
+        setSupportActionBar(launcherMainToolbar)
+        val toggle = ActionBarDrawerToggle(this,
+                drawerView.mBaseDrawerRootLayout,
+                launcherMainToolbar,
+                R.string.navigation_drawer_open,
+                R.string.navigation_drawer_close)
+        drawerView.mBaseDrawerRootLayout.addDrawerListener(toggle)
+        toggle.syncState()
+
+        BarUtils.setStatusBarColor4Drawer(drawerView.mBaseDrawerRootLayout, launcherMainFakeStatusBar, Color.TRANSPARENT, false)
+        BarUtils.addMarginTopEqualStatusBarHeight(launcherMainToolbar)
+    }
+
+    override fun onBackPressed() {
+        ClickUtils.back2HomeFriendly("Press again to exit.")
+    }
+}
diff --git a/feature/main/pkg/src/main/java/com/blankj/main/pkg/SplashActivity.kt b/feature/main/pkg/src/main/java/com/blankj/main/pkg/SplashActivity.kt
new file mode 100644
index 0000000000..9f842cda06
--- /dev/null
+++ b/feature/main/pkg/src/main/java/com/blankj/main/pkg/SplashActivity.kt
@@ -0,0 +1,7 @@
+package com.blankj.main.pkg
+
+import com.blankj.common.activity.CommonActivity
+
+class SplashActivity : CommonActivity() {
+
+}
\ No newline at end of file
diff --git a/feature/main/pkg/src/main/res/layout/activity_main.xml b/feature/main/pkg/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000000..3a33dd0f8e
--- /dev/null
+++ b/feature/main/pkg/src/main/res/layout/activity_main.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="192dp"
+        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
+
+        <com.google.android.material.appbar.CollapsingToolbarLayout
+            android:id="@+id/launcherMainCtl"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:contentScrim="@color/colorPrimary"
+            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
+
+            <ImageView
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:padding="@dimen/spacing_16"
+                android:scaleType="fitCenter"
+                android:src="@mipmap/ic_launcher"
+                app:layout_collapseMode="parallax"
+                app:layout_collapseParallaxMultiplier="0.6" />
+
+            <androidx.appcompat.widget.Toolbar
+                android:id="@+id/launcherMainToolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                app:layout_collapseMode="pin" />
+
+        </com.google.android.material.appbar.CollapsingToolbarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <View
+        android:id="@+id/launcherMainFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/mainRv"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/feature/main/pkg/src/main/res/values/strings.xml b/feature/main/pkg/src/main/res/values/strings.xml
new file mode 100644
index 0000000000..7abc06d3ba
--- /dev/null
+++ b/feature/main/pkg/src/main/res/values/strings.xml
@@ -0,0 +1 @@
+<resources></resources>
diff --git a/lib/resource/.gitignore b/feature/mock/.gitignore
similarity index 100%
rename from lib/resource/.gitignore
rename to feature/mock/.gitignore
diff --git a/feature/mock/build.gradle b/feature/mock/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/subutil/pkg/proguard-rules.pro b/feature/mock/proguard-rules.pro
similarity index 100%
rename from subutil/pkg/proguard-rules.pro
rename to feature/mock/proguard-rules.pro
diff --git a/feature/mock/src/main/AndroidManifest.xml b/feature/mock/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..8c0f9aa047
--- /dev/null
+++ b/feature/mock/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest package="com.blankj.mock" />
\ No newline at end of file
diff --git a/feature/mock/src/main/java/com/blankj/mock/subutil/SubUtilApiMock.java b/feature/mock/src/main/java/com/blankj/mock/subutil/SubUtilApiMock.java
new file mode 100644
index 0000000000..6c5af69924
--- /dev/null
+++ b/feature/mock/src/main/java/com/blankj/mock/subutil/SubUtilApiMock.java
@@ -0,0 +1,25 @@
+package com.blankj.mock.subutil;
+
+import android.content.Context;
+
+import com.blankj.subutil.export.api.SubUtilApi;
+import com.blankj.utilcode.util.ApiUtils;
+import com.blankj.utilcode.util.ToastUtils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/10
+ *     desc  :
+ * </pre>
+ */
+@ApiUtils.Api(isMock = true)
+public class SubUtilApiMock extends SubUtilApi {
+
+    @Override
+    public void startSubUtilActivity(Context context) {
+        ToastUtils.showShort("startSubUtilActivity");
+    }
+
+}
diff --git a/feature/mock/src/main/java/com/blankj/mock/utilcode/UtilCodeApiMock.java b/feature/mock/src/main/java/com/blankj/mock/utilcode/UtilCodeApiMock.java
new file mode 100644
index 0000000000..df22cbf92a
--- /dev/null
+++ b/feature/mock/src/main/java/com/blankj/mock/utilcode/UtilCodeApiMock.java
@@ -0,0 +1,32 @@
+package com.blankj.mock.utilcode;
+
+import android.content.Context;
+
+import com.blankj.utilcode.export.api.UtilCodeApi;
+import com.blankj.utilcode.util.ApiUtils;
+import com.blankj.utilcode.util.ToastUtils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/10
+ *     desc  :
+ * </pre>
+ */
+@ApiUtils.Api(isMock = true)
+public class UtilCodeApiMock extends UtilCodeApi {
+
+    @Override
+    public void startUtilCodeActivity(Context context) {
+        ToastUtils.showShort("startUtilCodeActivity");
+    }
+
+    @Override
+    public void testCallback(Callback callback) {
+        if (callback != null) {
+            callback.call();
+        }
+    }
+
+}
diff --git a/subutil/lib/.gitignore b/feature/subutil/app/.gitignore
similarity index 100%
rename from subutil/lib/.gitignore
rename to feature/subutil/app/.gitignore
diff --git a/feature/subutil/app/build.gradle b/feature/subutil/app/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/utilcode/pkg/proguard-rules.pro b/feature/subutil/app/proguard-rules.pro
similarity index 100%
rename from utilcode/pkg/proguard-rules.pro
rename to feature/subutil/app/proguard-rules.pro
diff --git a/feature/subutil/app/src/main/AndroidManifest.xml b/feature/subutil/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..2989dbfebf
--- /dev/null
+++ b/feature/subutil/app/src/main/AndroidManifest.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.subutil.app">
+
+    <application
+        android:name=".SubUtilApp"
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:name="com.blankj.subutil.pkg.feature.SubUtilActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:screenOrientation="user"
+            android:windowSoftInputMode="stateHidden">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/feature/subutil/app/src/main/java/com/blankj/subutil/app/SubUtilApp.kt b/feature/subutil/app/src/main/java/com/blankj/subutil/app/SubUtilApp.kt
new file mode 100644
index 0000000000..9667490cf4
--- /dev/null
+++ b/feature/subutil/app/src/main/java/com/blankj/subutil/app/SubUtilApp.kt
@@ -0,0 +1,32 @@
+package com.blankj.subutil.app
+
+import android.content.Context
+import com.blankj.common.CommonApplication
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/12
+ * desc  : app about utils
+ * ```
+ */
+class SubUtilApp : CommonApplication() {
+
+    companion object {
+        var instance: SubUtilApp? = null
+            private set
+    }
+
+    override fun attachBaseContext(base: Context) {
+        super.attachBaseContext(base)
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        instance = this
+    }
+}
+
+
diff --git a/subutil/pkg/.gitignore b/feature/subutil/export/.gitignore
similarity index 100%
rename from subutil/pkg/.gitignore
rename to feature/subutil/export/.gitignore
diff --git a/feature/subutil/export/build.gradle b/feature/subutil/export/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/feature/subutil/export/proguard-rules.pro b/feature/subutil/export/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/feature/subutil/export/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/feature/subutil/export/src/main/AndroidManifest.xml b/feature/subutil/export/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..de00a6d73e
--- /dev/null
+++ b/feature/subutil/export/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest package="com.blankj.subutil.export" />
diff --git a/feature/subutil/export/src/main/java/com/blankj/subutil/export/api/SubUtilApi.java b/feature/subutil/export/src/main/java/com/blankj/subutil/export/api/SubUtilApi.java
new file mode 100644
index 0000000000..c0e4abe037
--- /dev/null
+++ b/feature/subutil/export/src/main/java/com/blankj/subutil/export/api/SubUtilApi.java
@@ -0,0 +1,20 @@
+package com.blankj.subutil.export.api;
+
+import android.content.Context;
+
+import com.blankj.utilcode.util.ApiUtils;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/09
+ *     desc  :
+ * </pre>
+ */
+public abstract class SubUtilApi extends ApiUtils.BaseApi {
+
+    public abstract void startSubUtilActivity(Context context);
+
+}
diff --git a/utilcode/pkg/.gitignore b/feature/subutil/pkg/.gitignore
similarity index 100%
rename from utilcode/pkg/.gitignore
rename to feature/subutil/pkg/.gitignore
diff --git a/feature/subutil/pkg/build.gradle b/feature/subutil/pkg/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/feature/subutil/pkg/proguard-rules.pro b/feature/subutil/pkg/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/feature/subutil/pkg/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/feature/subutil/pkg/src/main/AndroidManifest.xml b/feature/subutil/pkg/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..198eb5c31b
--- /dev/null
+++ b/feature/subutil/pkg/src/main/AndroidManifest.xml
@@ -0,0 +1,55 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.subutil.pkg"
+    android:sharedUserId="android.uid.shell">
+
+    <!--dangerous-->
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.SEND_SMS" />
+
+    <uses-permission android:name="android.permission.INSTALL_PACKAGES" /><!--installAppSilent-->
+    <uses-permission android:name="android.permission.DELETE_PACKAGES" /><!--uninstallAppSilent-->
+    <uses-permission android:name="android.permission.SHUTDOWN" /><!--shutdown-->
+    <uses-permission android:name="android.permission.REBOOT" /><!--reboot-->
+    <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" /><!--setMobileDataEnabled-->
+
+    <!-- location -->
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+
+    <application>
+
+        <activity
+            android:name=".feature.SubUtilActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.appStore.AppStoreActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.battery.BatteryActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.country.CountryActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.dangerous.DangerousActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.location.LocationActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+
+        <service android:name=".feature.location.LocationService" />
+        <activity
+            android:name=".feature.pinyin.PinyinActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+    </application>
+
+</manifest>
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/Config.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/Config.kt
new file mode 100644
index 0000000000..82a8db84d3
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/Config.kt
@@ -0,0 +1,31 @@
+package com.blankj.subutil.pkg
+
+import android.os.Environment
+import com.blankj.utilcode.util.Utils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/10
+ * desc  : config about constants
+ * ```
+ */
+object Config {
+
+    val FILE_SEP = System.getProperty("file.separator")
+    val LINE_SEP = System.getProperty("line.separator")
+    const val TEST_PKG = "com.blankj.testinstall"
+    private val CACHE_PATH: String
+    val TEST_APK_PATH: String
+
+    init {
+        val cacheDir = Utils.getApp().externalCacheDir
+        CACHE_PATH = if (cacheDir != null) {
+            cacheDir.absolutePath
+        } else {
+            Environment.getExternalStorageDirectory().absolutePath
+        } + FILE_SEP
+        TEST_APK_PATH = CACHE_PATH + "test_install.apk"
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/SubUtilApiImpl.java b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/SubUtilApiImpl.java
new file mode 100644
index 0000000000..0b978f1bcd
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/SubUtilApiImpl.java
@@ -0,0 +1,25 @@
+package com.blankj.subutil.pkg;
+
+import android.content.Context;
+
+import com.blankj.subutil.export.api.SubUtilApi;
+import com.blankj.subutil.pkg.feature.SubUtilActivity;
+import com.blankj.utilcode.util.ApiUtils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/02
+ *     desc  :
+ * </pre>
+ */
+@ApiUtils.Api
+public class SubUtilApiImpl extends SubUtilApi {
+
+    @Override
+    public void startSubUtilActivity(Context context) {
+        SubUtilActivity.Companion.start(context);
+    }
+
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/SubUtilActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/SubUtilActivity.kt
new file mode 100644
index 0000000000..2c6af650ef
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/SubUtilActivity.kt
@@ -0,0 +1,61 @@
+package com.blankj.subutil.pkg.feature
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.subutil.pkg.R
+import com.blankj.subutil.pkg.feature.appStore.AppStoreActivity
+import com.blankj.subutil.pkg.feature.battery.BatteryActivity
+import com.blankj.subutil.pkg.feature.country.CountryActivity
+import com.blankj.subutil.pkg.feature.dangerous.DangerousActivity
+import com.blankj.subutil.pkg.feature.location.LocationActivity
+import com.blankj.subutil.pkg.feature.pinyin.PinyinActivity
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  : MainActivity
+ * ```
+ */
+class SubUtilActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, SubUtilActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+
+    override fun bindTitleRes(): Int {
+        return R.string.sub_util
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.demo_app_store, true) {
+                    AppStoreActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_battery, true) {
+                    BatteryActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_country, true) {
+                    CountryActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_dangerous, true) {
+                    DangerousActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_location, true) {
+                    LocationActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_pinyin, true) {
+                    PinyinActivity.start(this)
+                }
+        )
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/appStore/AppStoreActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/appStore/AppStoreActivity.kt
new file mode 100644
index 0000000000..e7c2953448
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/appStore/AppStoreActivity.kt
@@ -0,0 +1,43 @@
+package com.blankj.subutil.pkg.feature.appStore
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.subutil.pkg.R
+import com.blankj.subutil.util.AppStoreUtils
+import com.blankj.utilcode.util.ActivityUtils
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/01
+ * desc  : demo about AppStore
+ * ```
+ */
+class AppStoreActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, AppStoreActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_app_store
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.app_store_system, true) {
+                    AppStoreUtils.getAppStoreIntent("com.tencent.mm").apply {
+                        ActivityUtils.startActivity(this)
+                    }
+                }
+        )
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/battery/BatteryActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/battery/BatteryActivity.kt
new file mode 100644
index 0000000000..8e04163c4f
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/battery/BatteryActivity.kt
@@ -0,0 +1,56 @@
+package com.blankj.subutil.pkg.feature.battery
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.subutil.pkg.R
+import com.blankj.subutil.util.BatteryUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 20/03/31
+ * desc  : demo about Battery
+ * ```
+ */
+class BatteryActivity : CommonActivity(), BatteryUtils.OnBatteryStatusChangedListener {
+
+    private val titleItem: CommonItemTitle = CommonItemTitle("", true);
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BatteryActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_battery
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(titleItem)
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        BatteryUtils.registerBatteryStatusChangedListener(this)
+    }
+
+    override fun onBatteryStatusChanged(status: BatteryUtils.Status) {
+        titleItem.title = status.toString()
+        ToastUtils.showShort(status.toString())
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        BatteryUtils.unregisterBatteryStatusChangedListener(this)
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/country/CountryActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/country/CountryActivity.kt
new file mode 100644
index 0000000000..c2daa6ef50
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/country/CountryActivity.kt
@@ -0,0 +1,41 @@
+package com.blankj.subutil.pkg.feature.country
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.subutil.pkg.R
+import com.blankj.subutil.util.CountryUtils
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/01
+ * desc  : demo about Country
+ * ```
+ */
+class CountryActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, CountryActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_country
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getCountryCodeBySim", CountryUtils.getCountryCodeBySim("Default")),
+                CommonItemTitle("getCountryCodeByLanguage", CountryUtils.getCountryCodeByLanguage("Default")),
+                CommonItemTitle("getCountryBySim", CountryUtils.getCountryBySim()),
+                CommonItemTitle("getCountryByLanguage", CountryUtils.getCountryByLanguage())
+        )
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/dangerous/DangerousActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/dangerous/DangerousActivity.kt
new file mode 100644
index 0000000000..cc5c60f470
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/dangerous/DangerousActivity.kt
@@ -0,0 +1,123 @@
+package com.blankj.subutil.pkg.feature.dangerous
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.subutil.pkg.Config
+import com.blankj.subutil.pkg.R
+import com.blankj.subutil.util.DangerousUtils
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/01
+ * desc  : demo about dangerous
+ * ```
+ */
+class DangerousActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, DangerousActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                }
+            }, PermissionConstants.STORAGE, PermissionConstants.SMS)
+        }
+    }
+
+    private val listener = object : OnReleasedListener {
+        override fun onReleased() {
+            if (DangerousUtils.installAppSilent(Config.TEST_APK_PATH)) {
+                ToastUtils.showShort(R.string.dangerous_install_successfully)
+            } else {
+                ToastUtils.showShort(R.string.dangerous_install_unsuccessfully)
+            }
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_dangerous
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.dangerous_install_silent) {
+                    if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
+                        ToastUtils.showShort(R.string.dangerous_app_install_tips)
+                    } else {
+                        if (!FileUtils.isFileExists(Config.TEST_APK_PATH)) {
+                            ReleaseInstallApkTask(listener).execute()
+                        } else {
+                            listener.onReleased()
+                        }
+                    }
+                },
+                CommonItemClick(R.string.dangerous_uninstall_silent) {
+                    if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
+                        if (DangerousUtils.uninstallAppSilent(Config.TEST_PKG, false)) {
+                            ToastUtils.showShort(R.string.dangerous_uninstall_successfully)
+                        } else {
+                            ToastUtils.showShort(R.string.dangerous_uninstall_unsuccessfully)
+                        }
+                    } else {
+                        ToastUtils.showShort(R.string.dangerous_app_uninstall_tips)
+                    }
+                },
+                CommonItemClick(R.string.dangerous_shutdown) {
+                    ToastUtils.showShort(DangerousUtils.shutdown().toString())
+                },
+                CommonItemClick(R.string.dangerous_reboot) {
+                    ToastUtils.showShort(DangerousUtils.reboot().toString())
+                },
+                CommonItemClick(R.string.dangerous_reboot_to_recovery) {
+                    ToastUtils.showShort(DangerousUtils.reboot2Recovery().toString())
+                },
+                CommonItemClick(R.string.dangerous_reboot_to_bootloader) {
+                    ToastUtils.showShort(DangerousUtils.reboot2Bootloader().toString())
+                },
+                CommonItemSwitch(
+                        R.string.dangerous_data_enabled,
+                        { NetworkUtils.getMobileDataEnabled() },
+                        {
+                            if (AppUtils.isAppSystem()) {
+                                DangerousUtils.setMobileDataEnabled(it)
+                            }
+                        }
+                ),
+                CommonItemClick(R.string.dangerous_send_sms_silent) {
+                    DangerousUtils.sendSmsSilent("10000", "sendSmsSilent")
+                }
+        )
+    }
+}
+
+class ReleaseInstallApkTask(private val mListener: OnReleasedListener) : ThreadUtils.SimpleTask<Unit>() {
+
+    override fun doInBackground() {
+        ResourceUtils.copyFileFromAssets("test_install", Config.TEST_APK_PATH)
+    }
+
+    override fun onSuccess(result: Unit) {
+        mListener.onReleased()
+    }
+
+    fun execute() {
+        ThreadUtils.executeByIo(this)
+    }
+}
+
+interface OnReleasedListener {
+    fun onReleased()
+}
\ No newline at end of file
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationActivity.kt
new file mode 100755
index 0000000000..8f4217c96c
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationActivity.kt
@@ -0,0 +1,100 @@
+package com.blankj.subutil.pkg.feature.location
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.IBinder
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.subutil.pkg.R
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.PermissionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about LocationUtils
+ * ```
+ */
+class LocationActivity : CommonActivity() {
+
+    private var lastLatitude: String = "unknown"
+    private var lastLongitude: String = "unknown"
+    private var latitude: String = "unknown"
+    private var longitude: String = "unknown"
+    private var country: String = "unknown"
+    private var locality: String = "unknown"
+    private var street: String = "unknown"
+
+    companion object {
+        fun start(context: Context) {
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, LocationActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                }
+            }, PermissionConstants.LOCATION)
+        }
+    }
+
+    private lateinit var mLocationService: LocationService
+
+    private var conn: ServiceConnection = object : ServiceConnection {
+        override fun onServiceDisconnected(name: ComponentName) {}
+
+        override fun onServiceConnected(name: ComponentName, service: IBinder) {
+            mLocationService = (service as LocationService.LocationBinder).service
+            mLocationService.setOnGetLocationListener(object : LocationService.OnGetLocationListener {
+                override fun getLocation(lastLatitude: String, lastLongitude: String, latitude: String,
+                                         longitude: String, country: String, locality: String, street: String) {
+                    this@LocationActivity.apply {
+                        this.lastLatitude = lastLatitude
+                        this.lastLongitude = lastLongitude
+                        this.latitude = latitude
+                        this.longitude = longitude
+                        this.country = country
+                        this.locality = locality
+                        this.street = street
+                    }
+                    runOnUiThread {
+                        itemsView.updateItems(bindItems())
+                    }
+                }
+            })
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_location
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("lastLatitude", lastLatitude),
+                CommonItemTitle("lastLongitude", lastLongitude),
+                CommonItemTitle("latitude", latitude),
+                CommonItemTitle("longitude", longitude),
+                CommonItemTitle("getCountryName", country),
+                CommonItemTitle("getLocality", locality),
+                CommonItemTitle("getStreet", street)
+        )
+    }
+
+    override fun doBusiness() {
+        bindService(Intent(this, LocationService::class.java), conn, Context.BIND_AUTO_CREATE)
+    }
+
+    override fun onDestroy() {
+        unbindService(conn)
+        super.onDestroy()
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationService.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationService.kt
new file mode 100755
index 0000000000..8322500d63
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationService.kt
@@ -0,0 +1,95 @@
+package com.blankj.subutil.pkg.feature.location
+
+import android.app.Service
+import android.content.Intent
+import android.location.Location
+import android.os.Binder
+import android.os.Bundle
+import android.os.IBinder
+import android.os.Looper
+
+import com.blankj.subutil.util.LocationUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/11/21
+ * desc  : demo about LocationUtils
+ * ```
+ */
+class LocationService : Service() {
+
+    private var isSuccess: Boolean = false
+    private var lastLatitude = "loading..."
+    private var lastLongitude = "loading..."
+    private var latitude = "loading..."
+    private var longitude = "loading..."
+    private var country = "loading..."
+    private var locality = "loading..."
+    private var street = "loading..."
+
+    private var mOnGetLocationListener: OnGetLocationListener? = null
+
+    private val mOnLocationChangeListener = object : LocationUtils.OnLocationChangeListener {
+        override fun getLastKnownLocation(location: Location) {
+            lastLatitude = location.latitude.toString()
+            lastLongitude = location.longitude.toString()
+            mOnGetLocationListener?.getLocation(lastLatitude, lastLongitude, latitude, longitude, country, locality, street)
+        }
+
+        override fun onLocationChanged(location: Location) {
+            latitude = location.latitude.toString()
+            longitude = location.longitude.toString()
+            mOnGetLocationListener?.getLocation(lastLatitude, lastLongitude, latitude, longitude, country, locality, street)
+            country = LocationUtils.getCountryName(java.lang.Double.parseDouble(latitude), java.lang.Double.parseDouble(longitude))
+            locality = LocationUtils.getLocality(java.lang.Double.parseDouble(latitude), java.lang.Double.parseDouble(longitude))
+            street = LocationUtils.getStreet(java.lang.Double.parseDouble(latitude), java.lang.Double.parseDouble(longitude))
+            mOnGetLocationListener?.getLocation(lastLatitude, lastLongitude, latitude, longitude, country, locality, street)
+        }
+
+        override fun onStatusChanged(provider: String, status: Int, extras: Bundle) {}
+    }
+
+    fun setOnGetLocationListener(onGetLocationListener: OnGetLocationListener) {
+        mOnGetLocationListener = onGetLocationListener
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        Thread(Runnable {
+            Looper.prepare()
+            isSuccess = LocationUtils.register(0, 0, mOnLocationChangeListener)
+            if (isSuccess) ToastUtils.showShort("init success")
+            Looper.loop()
+        }).start()
+    }
+
+    override fun onBind(intent: Intent): IBinder? {
+        return LocationBinder()
+    }
+
+    inner class LocationBinder : Binder() {
+        val service: LocationService
+            get() = this@LocationService
+    }
+
+    override fun onDestroy() {
+        LocationUtils.unregister()
+        // 一定要制空，否则内存泄漏
+        mOnGetLocationListener = null
+        super.onDestroy()
+    }
+
+    /**
+     * 获取位置监听器
+     */
+    interface OnGetLocationListener {
+        fun getLocation(
+                lastLatitude: String, lastLongitude: String,
+                latitude: String, longitude: String,
+                country: String, locality: String, street: String
+        )
+    }
+}
diff --git a/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/pinyin/PinyinActivity.kt b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/pinyin/PinyinActivity.kt
new file mode 100644
index 0000000000..648dcb295d
--- /dev/null
+++ b/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/pinyin/PinyinActivity.kt
@@ -0,0 +1,56 @@
+package com.blankj.subutil.pkg.feature.pinyin
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.subutil.pkg.R
+import com.blankj.subutil.util.PinyinUtils
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/01
+ * desc  : demo about PinyinUtils
+ * ```
+ */
+class PinyinActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, PinyinActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_pinyin
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        val surnames = "乐乘乜仇会便区单参句召员宓弗折曾朴查洗盖祭种秘繁缪能蕃覃解谌适都阿难黑"
+        val size = surnames.length
+        val sb = StringBuilder("澹台: " + PinyinUtils.getSurnamePinyin("澹台")
+                + "\n尉迟: " + PinyinUtils.getSurnamePinyin("尉迟")
+                + "\n万俟: " + PinyinUtils.getSurnamePinyin("万俟")
+                + "\n单于: " + PinyinUtils.getSurnamePinyin("单于"))
+        for (i in 0 until size) {
+            val surname = surnames[i].toString()
+            sb.append(String.format(
+                    "\n%s 正确: %-8s 错误: %-8s",
+                    surname,
+                    PinyinUtils.getSurnamePinyin(surname),
+                    PinyinUtils.ccs2Pinyin(surname)
+            ))
+        }
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("汉字转拼音", PinyinUtils.ccs2Pinyin("汉字转拼音", " ")),
+                CommonItemTitle("获取首字母", PinyinUtils.getPinyinFirstLetters("获取首字母", " ")),
+                CommonItemTitle("测试姓氏", sb.toString())
+
+        )
+    }
+}
\ No newline at end of file
diff --git a/feature/subutil/pkg/src/main/res/values/strings.xml b/feature/subutil/pkg/src/main/res/values/strings.xml
new file mode 100644
index 0000000000..e758c294a0
--- /dev/null
+++ b/feature/subutil/pkg/src/main/res/values/strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="demo_app_store">App Store Demo</string>
+    <string name="demo_battery">Battery Demo</string>
+    <string name="demo_country">Country Demo</string>
+    <string name="demo_dangerous">Dangerous Demo</string>
+    <string name="demo_location">LocationUtils Demo</string>
+    <string name="demo_pinyin">PinyinUtils Demo</string>
+
+    <!--App Store 相关-->
+    <string name="app_store_system">Go System App Store In WeChat Page</string>
+
+    <string name="dangerous_install_silent">Install Test App Silently</string>
+    <string name="dangerous_uninstall_silent">Uninstall App Silently</string>
+    <string name="dangerous_app_install_tips">Test app have installed</string>
+    <string name="dangerous_install_successfully">Install successfully</string>
+    <string name="dangerous_install_unsuccessfully">Install unsuccessfully</string>
+    <string name="dangerous_app_uninstall_tips">Please install test app first</string>
+    <string name="dangerous_uninstall_successfully">Uninstall successfully</string>
+    <string name="dangerous_uninstall_unsuccessfully">Uninstall unsuccessfully</string>
+    <string name="dangerous_shutdown">Shutdown</string>
+    <string name="dangerous_reboot">Reboot</string>
+    <string name="dangerous_reboot_to_recovery">Reboot To Recovery</string>
+    <string name="dangerous_reboot_to_bootloader">Reboot To Bootloader</string>
+    <string name="dangerous_send_sms_silent">Send SMS Silent</string>
+    <string name="dangerous_data_enabled">Mobile Data Enabled</string>
+
+
+</resources>
\ No newline at end of file
diff --git a/feature/utilcode/app/.gitignore b/feature/utilcode/app/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/feature/utilcode/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/feature/utilcode/app/build.gradle b/feature/utilcode/app/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/feature/utilcode/app/proguard-rules.pro b/feature/utilcode/app/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/feature/utilcode/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/feature/utilcode/app/src/main/AndroidManifest.xml b/feature/utilcode/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..34308fcb79
--- /dev/null
+++ b/feature/utilcode/app/src/main/AndroidManifest.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.utilcode.app">
+
+    <application
+        android:name=".UtilCodeApp"
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:name="com.blankj.utilcode.pkg.feature.CoreUtilActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/feature/utilcode/app/src/main/java/com/blankj/utilcode/app/UtilCodeApp.kt b/feature/utilcode/app/src/main/java/com/blankj/utilcode/app/UtilCodeApp.kt
new file mode 100644
index 0000000000..42d2909041
--- /dev/null
+++ b/feature/utilcode/app/src/main/java/com/blankj/utilcode/app/UtilCodeApp.kt
@@ -0,0 +1,30 @@
+package com.blankj.utilcode.app
+
+import com.blankj.common.CommonApplication
+import com.blankj.utilcode.util.Utils
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/12
+ * desc  : app about utils
+ * ```
+ */
+class UtilCodeApp : CommonApplication() {
+
+    companion object {
+        lateinit var instance: UtilCodeApp
+            private set
+    }
+
+    override fun onCreate() {
+        Utils.init(this)
+        super.onCreate()
+        instance = this
+//        BusUtils.register("com.blankj.androidutilcode")
+    }
+}
+
+
diff --git a/feature/utilcode/export/.gitignore b/feature/utilcode/export/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/feature/utilcode/export/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/feature/utilcode/export/build.gradle b/feature/utilcode/export/build.gradle
new file mode 100644
index 0000000000..30e59272ee
--- /dev/null
+++ b/feature/utilcode/export/build.gradle
@@ -0,0 +1,8 @@
+ext {
+    groupId = Config.modules.feature_utilcode_export.groupId
+    artifactId = Config.modules.feature_utilcode_export.artifactId
+    version = Config.modules.feature_utilcode_export.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+//apply from: "${rootDir.path}/config/publish.gradle"
+//./gradlew :feature_utilcode_export:mavenLocal   // 上传到本地 mavenLocal
\ No newline at end of file
diff --git a/feature/utilcode/export/proguard-rules.pro b/feature/utilcode/export/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/feature/utilcode/export/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/feature/utilcode/export/src/main/AndroidManifest.xml b/feature/utilcode/export/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..9bbbcc3210
--- /dev/null
+++ b/feature/utilcode/export/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest package="com.blankj.utilcode.export" />
diff --git a/feature/utilcode/export/src/main/java/com/blankj/utilcode/export/api/UtilCodeApi.java b/feature/utilcode/export/src/main/java/com/blankj/utilcode/export/api/UtilCodeApi.java
new file mode 100644
index 0000000000..ea7d5291be
--- /dev/null
+++ b/feature/utilcode/export/src/main/java/com/blankj/utilcode/export/api/UtilCodeApi.java
@@ -0,0 +1,26 @@
+package com.blankj.utilcode.export.api;
+
+import android.content.Context;
+
+import com.blankj.utilcode.util.ApiUtils;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/01
+ *     desc  :
+ * </pre>
+ */
+public abstract class UtilCodeApi extends ApiUtils.BaseApi {
+
+    public abstract void startUtilCodeActivity(Context context);
+
+    public abstract void testCallback(Callback callback);
+
+    public interface Callback {
+        void call();
+    }
+
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/.gitignore b/feature/utilcode/pkg/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/feature/utilcode/pkg/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/feature/utilcode/pkg/build.gradle b/feature/utilcode/pkg/build.gradle
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/feature/utilcode/pkg/proguard-rules.pro b/feature/utilcode/pkg/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/feature/utilcode/pkg/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/feature/utilcode/pkg/src/main/AndroidManifest.xml b/feature/utilcode/pkg/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..8da0667a23
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/AndroidManifest.xml
@@ -0,0 +1,284 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.utilcode.pkg">
+
+    <!-- app -->
+    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+    <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
+
+    <!-- bar -->
+    <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />
+
+    <!-- 读写内存 -->
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <!-- flashlight -->
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.FLASHLIGHT" />
+
+    <!-- network -->
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <!-- permission -->
+    <uses-permission android:name="android.permission.READ_CALENDAR" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+
+    <!-- phone -->
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.CALL_PHONE" />
+    <uses-permission android:name="android.permission.READ_CONTACTS" />
+
+    <!-- process -->
+    <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
+
+    <!-- vibrate -->
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <application>
+        <activity
+            android:name=".feature.CoreUtilActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+
+        <activity
+            android:name=".feature.activity.ActivityActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:icon="@drawable/activity_activity_icon"
+            android:launchMode="singleTop"
+            android:logo="@drawable/activity_activity_logo" />
+        <activity
+            android:name=".feature.activity.SubActivityActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.adaptScreen.AdaptScreenActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.adaptScreen.AdaptCloseActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.adaptScreen.AdaptHeightActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.adaptScreen.AdaptWidthActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.api.ApiActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.app.AppActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.BarActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.nav.BarNavActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.notification.BarNotificationActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.BarStatusActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.BarStatusActivityAlpha"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.BarStatusActivityColor"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.BarStatusActivityCustom"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.BarStatusActivityDrawer"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.fragment.BarStatusFragmentActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bar.status.BarStatusActivityImageView"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.brightness.BrightnessActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bus.BusActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.bus.BusCompareActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.clean.CleanActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.click.ClickActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.clipboard.ClipboardActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.device.DeviceActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.file.FileActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.flashlight.FlashlightActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.fragment.FragmentActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.image.ImageActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.intent.IntentActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.keyboard.KeyboardActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.language.LanguageActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.log.LogActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.messenger.MessengerActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.messenger.MessengerRemoteActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop"
+            android:process=":remote" />
+        <activity
+            android:name=".feature.metaData.MetaDataActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop">
+            <meta-data
+                android:name="activity_meta_data"
+                android:value="D1234567890123456789012345678901234567890" />
+        </activity>
+        <activity
+            android:name=".feature.mvp.MvpActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.network.NetworkActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.notification.NotificationActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.path.PathActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.permission.PermissionActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.phone.PhoneActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.process.ProcessActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.reflect.ReflectActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.resource.ResourceActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.rom.RomActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.screen.ScreenActivity"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.sdcard.SDCardActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.shadow.ShadowActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.snackbar.SnackbarActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.spStatic.SPStaticActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.span.SpanActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.toast.ToastActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize" />
+        <activity
+            android:name=".feature.uiMessage.UiMessageActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.vibrate.VibrateActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+        <activity
+            android:name=".feature.volume.VolumeActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:launchMode="singleTop" />
+
+        <meta-data
+            android:name="app_meta_data"
+            android:value="AppMetaData" />
+    </application>
+
+</manifest>
diff --git a/app/src/main/assets/fonts/dnmbhs.ttf b/feature/utilcode/pkg/src/main/assets/fonts/dnmbhs.ttf
similarity index 100%
rename from app/src/main/assets/fonts/dnmbhs.ttf
rename to feature/utilcode/pkg/src/main/assets/fonts/dnmbhs.ttf
diff --git a/app/src/main/assets/test/sub/test.txt b/feature/utilcode/pkg/src/main/assets/test/sub/test.txt
similarity index 100%
rename from app/src/main/assets/test/sub/test.txt
rename to feature/utilcode/pkg/src/main/assets/test/sub/test.txt
diff --git a/app/src/main/assets/test/test.txt b/feature/utilcode/pkg/src/main/assets/test/test.txt
similarity index 100%
rename from app/src/main/assets/test/test.txt
rename to feature/utilcode/pkg/src/main/assets/test/test.txt
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/Config.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/Config.kt
new file mode 100644
index 0000000000..51bb0b7e66
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/Config.kt
@@ -0,0 +1,19 @@
+package com.blankj.utilcode.pkg
+
+import com.blankj.utilcode.util.PathUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/10
+ * desc  : config about constants
+ * ```
+ */
+object Config {
+    val FILE_SEP = System.getProperty("file.separator")
+    val LINE_SEP = System.getProperty("line.separator")
+    const val TEST_PKG = "com.blankj.testinstall"
+    val CACHE_PATH = PathUtils.getCachePathExternalFirst() + FILE_SEP
+    val TEST_APK_PATH: String = CACHE_PATH + "test_install.apk"
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/UtilCodeApiImpl.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/UtilCodeApiImpl.java
new file mode 100644
index 0000000000..076858b3d1
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/UtilCodeApiImpl.java
@@ -0,0 +1,31 @@
+package com.blankj.utilcode.pkg;
+
+import android.content.Context;
+
+import com.blankj.utilcode.export.api.UtilCodeApi;
+import com.blankj.utilcode.pkg.feature.CoreUtilActivity;
+import com.blankj.utilcode.util.ApiUtils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/01
+ *     desc  :
+ * </pre>
+ */
+@ApiUtils.Api
+public class UtilCodeApiImpl extends UtilCodeApi {
+
+    @Override
+    public void startUtilCodeActivity(Context context) {
+        CoreUtilActivity.Companion.start(context);
+    }
+
+    @Override
+    public void testCallback(Callback callback) {
+        if (callback != null) {
+            callback.call();
+        }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.kt
new file mode 100644
index 0000000000..2640191959
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/CoreUtilActivity.kt
@@ -0,0 +1,226 @@
+package com.blankj.utilcode.pkg.feature
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.widget.TextView
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.feature.activity.ActivityActivity
+import com.blankj.utilcode.pkg.feature.adaptScreen.AdaptScreenActivity
+import com.blankj.utilcode.pkg.feature.api.ApiActivity
+import com.blankj.utilcode.pkg.feature.app.AppActivity
+import com.blankj.utilcode.pkg.feature.bar.BarActivity
+import com.blankj.utilcode.pkg.feature.brightness.BrightnessActivity
+import com.blankj.utilcode.pkg.feature.bus.BusActivity
+import com.blankj.utilcode.pkg.feature.clean.CleanActivity
+import com.blankj.utilcode.pkg.feature.click.ClickActivity
+import com.blankj.utilcode.pkg.feature.clipboard.ClipboardActivity
+import com.blankj.utilcode.pkg.feature.device.DeviceActivity
+import com.blankj.utilcode.pkg.feature.file.FileActivity
+import com.blankj.utilcode.pkg.feature.flashlight.FlashlightActivity
+import com.blankj.utilcode.pkg.feature.fragment.FragmentActivity
+import com.blankj.utilcode.pkg.feature.image.ImageActivity
+import com.blankj.utilcode.pkg.feature.intent.IntentActivity
+import com.blankj.utilcode.pkg.feature.keyboard.KeyboardActivity
+import com.blankj.utilcode.pkg.feature.language.LanguageActivity
+import com.blankj.utilcode.pkg.feature.log.LogActivity
+import com.blankj.utilcode.pkg.feature.messenger.MessengerActivity
+import com.blankj.utilcode.pkg.feature.metaData.MetaDataActivity
+import com.blankj.utilcode.pkg.feature.mvp.MvpActivity
+import com.blankj.utilcode.pkg.feature.network.NetworkActivity
+import com.blankj.utilcode.pkg.feature.notification.NotificationActivity
+import com.blankj.utilcode.pkg.feature.path.PathActivity
+import com.blankj.utilcode.pkg.feature.permission.PermissionActivity
+import com.blankj.utilcode.pkg.feature.phone.PhoneActivity
+import com.blankj.utilcode.pkg.feature.process.ProcessActivity
+import com.blankj.utilcode.pkg.feature.reflect.ReflectActivity
+import com.blankj.utilcode.pkg.feature.resource.ResourceActivity
+import com.blankj.utilcode.pkg.feature.rom.RomActivity
+import com.blankj.utilcode.pkg.feature.screen.ScreenActivity
+import com.blankj.utilcode.pkg.feature.sdcard.SDCardActivity
+import com.blankj.utilcode.pkg.feature.shadow.ShadowActivity
+import com.blankj.utilcode.pkg.feature.snackbar.SnackbarActivity
+import com.blankj.utilcode.pkg.feature.spStatic.SPStaticActivity
+import com.blankj.utilcode.pkg.feature.span.SpanActivity
+import com.blankj.utilcode.pkg.feature.toast.ToastActivity
+import com.blankj.utilcode.pkg.feature.uiMessage.UiMessageActivity
+import com.blankj.utilcode.pkg.feature.vibrate.VibrateActivity
+import com.blankj.utilcode.pkg.feature.volume.VolumeActivity
+import com.blankj.utilcode.pkg.helper.DialogHelper
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.LogUtils
+import com.blankj.utilcode.util.ThreadUtils
+import com.blankj.utilcode.util.UtilsTransActivity
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  :
+ * ```
+ */
+class CoreUtilActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, CoreUtilActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.core_util
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.demo_activity, true) {
+                    ActivityActivity.start(this)
+                    ThreadUtils.runOnUiThreadDelayed(Runnable {
+
+                    }, 2000)
+                },
+                CommonItemClick(R.string.demo_adapt_screen, true) {
+                    AdaptScreenActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_api, true) {
+                    ApiActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_app, true) {
+                    AppActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_bar, true) {
+                    BarActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_brightness, true) {
+                    BrightnessActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_bus, true) {
+                    BusActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_clean, true) {
+                    CleanActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_click, true) {
+                    ClickActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_clipboard, true) {
+                    ClipboardActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_crash) {
+                    throw NullPointerException("crash test")
+                },
+                CommonItemClick(R.string.demo_device, true) {
+                    DeviceActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_file, true) {
+                    FileActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_flashlight, true) {
+                    FlashlightActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_fragment, true) {
+                    FragmentActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_image, true) {
+                    ImageActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_intent, true) {
+                    IntentActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_keyboard, true) {
+                    KeyboardActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_language, true) {
+                    LanguageActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_log, true) {
+                    LogActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_messenger, true) {
+                    MessengerActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_meta_data, true) {
+                    MetaDataActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_mvp, true) {
+                    MvpActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_network, true) {
+                    NetworkActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_notification, true) {
+                    NotificationActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_path, true) {
+                    PathActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_permission, true) {
+                    PermissionActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_phone, true) {
+                    PhoneActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_process, true) {
+                    ProcessActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_reflect, true) {
+                    ReflectActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_resource, true) {
+                    ResourceActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_rom, true) {
+                    RomActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_screen, true) {
+                    ScreenActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_sdcard, true) {
+                    SDCardActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_shadow, true) {
+                    ShadowActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_snackbar, true) {
+                    SnackbarActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_spStatic, true) {
+                    SPStaticActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_span, true) {
+                    SpanActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_toast, true) {
+                    ToastActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_trans_activity, true) {
+                    UtilsTransActivity.start(this, object : UtilsTransActivity.TransActivityDelegate() {
+                        override fun onCreated(activity: UtilsTransActivity, savedInstanceState: Bundle?) {
+                            super.onCreated(activity, savedInstanceState)
+                            activity.setContentView(R.layout.common_dialog_loading)
+                            activity.findViewById<TextView>(R.id.utilActionLoadingMsgTv).text = "Trans Activity is showing..."
+                        }
+                    })
+                },
+                CommonItemClick(R.string.demo_uiMessage, true) {
+                    UiMessageActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_vibrate, true) {
+                    VibrateActivity.start(this)
+                },
+                CommonItemClick(R.string.demo_volume, true) {
+                    VolumeActivity.start(this)
+                }
+        )
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        LogUtils.e(requestCode, requestCode)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/ActivityActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/ActivityActivity.kt
new file mode 100644
index 0000000000..97023b94c2
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/ActivityActivity.kt
@@ -0,0 +1,194 @@
+package com.blankj.utilcode.pkg.feature.activity
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.drawable.BitmapDrawable
+import android.os.Bundle
+import android.widget.ImageView
+import androidx.core.app.ActivityOptionsCompat
+import com.blankj.base.rv.ItemViewHolder
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemImage
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.feature.CoreUtilActivity
+import com.blankj.utilcode.util.ActivityUtils
+import com.blankj.utilcode.util.AppUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.StringUtils
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about ActivityUtils
+ * ```
+ */
+class ActivityActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ActivityActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_activity
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        val elementItem = ActivityItem()
+        val intent = Intent(this, SubActivityActivity::class.java)
+        val intents = arrayOfNulls<Intent>(2)
+        intents[0] = intent
+        intents[1] = Intent(this, SubActivityActivity::class.java)
+
+        return CollectionUtils.newArrayList(
+                elementItem,
+                CommonItemTitle("isActivityExists(${SubActivityActivity::class.java.name})", ActivityUtils.isActivityExists(AppUtils.getAppPackageName(), SubActivityActivity::class.java.name).toString()),
+                CommonItemTitle("getLauncherActivity", ActivityUtils.getLauncherActivity(AppUtils.getAppPackageName())),
+                CommonItemTitle("getMainActivities", ActivityUtils.getMainActivities().toString()),
+                CommonItemTitle("getActivityList", CollectionUtils.collect(ActivityUtils.getActivityList()) { input -> input.javaClass.simpleName }.toString()),
+                CommonItemTitle("getTopActivity", ActivityUtils.getTopActivity().toString()),
+                CommonItemTitle("isActivityExistsInStack", ActivityUtils.isActivityExistsInStack(CoreUtilActivity::class.java).toString()),
+                CommonItemImage("getActivityIcon") {
+                    it.setImageDrawable(ActivityUtils.getActivityIcon(ActivityActivity::class.java))
+                },
+                CommonItemImage("getActivityLogo") {
+                    it.setImageDrawable(ActivityUtils.getActivityLogo(ActivityActivity::class.java))
+                },
+
+                CommonItemClick(R.string.activity_clz, true) {
+                    ActivityUtils.startActivity(SubActivityActivity::class.java)
+                },
+                CommonItemClick(R.string.activity_clz_opt, true) {
+                    ActivityUtils.startActivity(SubActivityActivity::class.java, getOption(elementItem))
+                },
+                CommonItemClick(R.string.activity_clz_anim, true) {
+                    ActivityUtils.startActivity(SubActivityActivity::class.java, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_act_clz, true) {
+                    ActivityUtils.startActivity(this, SubActivityActivity::class.java)
+                },
+                CommonItemClick(R.string.activity_act_clz_shared_element, true) {
+                    ActivityUtils.startActivity(this, SubActivityActivity::class.java, elementItem.element)
+                },
+                CommonItemClick(R.string.activity_act_clz_anim, true) {
+                    ActivityUtils.startActivity(this, SubActivityActivity::class.java, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_pkg_cls, true) {
+                    ActivityUtils.startActivity(this.packageName, SubActivityActivity::class.java.name)
+                },
+                CommonItemClick(R.string.activity_pkg_cls_opt, true) {
+                    ActivityUtils.startActivity(this.packageName, SubActivityActivity::class.java.name, getOption(elementItem))
+                },
+                CommonItemClick(R.string.activity_pkg_cls_anim, true) {
+                    ActivityUtils.startActivity(this.packageName, SubActivityActivity::class.java.name, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_act_pkg_cls, true) {
+                    ActivityUtils.startActivity(this, this.packageName, SubActivityActivity::class.java.name)
+                },
+                CommonItemClick(R.string.activity_act_pkg_cls_opt, true) {
+                    ActivityUtils.startActivity(this, this.packageName, SubActivityActivity::class.java.name, getOption(elementItem))
+                },
+                CommonItemClick(R.string.activity_act_pkg_cls_shared_element, true) {
+                    ActivityUtils.startActivity(this, this.packageName, SubActivityActivity::class.java.name, elementItem.element)
+                },
+                CommonItemClick(R.string.activity_act_pkg_cls_anim, true) {
+                    ActivityUtils.startActivity(this, this.packageName, SubActivityActivity::class.java.name, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_intent, true) {
+                    ActivityUtils.startActivity(this, intent)
+                },
+                CommonItemClick(R.string.activity_intent_opt, true) {
+                    ActivityUtils.startActivity(this, intent, getOption(elementItem))
+                },
+                CommonItemClick(R.string.activity_intent_shared_element, true) {
+                    ActivityUtils.startActivity(this, intent, elementItem.element)
+                },
+                CommonItemClick(R.string.activity_intent_anim, true) {
+                    ActivityUtils.startActivity(this, intent, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_intents, true) {
+                    ActivityUtils.startActivities(intents)
+                },
+                CommonItemClick(R.string.activity_intents_opt, true) {
+                    ActivityUtils.startActivities(intents, getOption(elementItem))
+                },
+                CommonItemClick(R.string.activity_intents_anim, true) {
+                    ActivityUtils.startActivities(intents, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_act_intents, true) {
+                    ActivityUtils.startActivities(this, intents, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_act_intents_opt, true) {
+                    ActivityUtils.startActivities(this, intents, getOption(elementItem))
+                },
+                CommonItemClick(R.string.activity_act_intents_anim, true) {
+                    ActivityUtils.startActivities(this, intents, R.anim.fade_in_1000, R.anim.fade_out_1000)
+                },
+                CommonItemClick(R.string.activity_start_home_activity, true) {
+                    ActivityUtils.startHomeActivity()
+                },
+                CommonItemClick(R.string.activity_start_launcher_activity, true) {
+                    ActivityUtils.startLauncherActivity()
+                },
+                CommonItemClick(R.string.activity_finish_activity, false) {
+                    ActivityUtils.finishActivity(CoreUtilActivity::class.java)
+                },
+                CommonItemClick(R.string.activity_finish_to_activity, true) {
+                    ActivityUtils.finishToActivity(CoreUtilActivity::class.java, false, true)
+                },
+                CommonItemClick(R.string.activity_finish_all_activities_except_newest, true) {
+                    ActivityUtils.finishAllActivitiesExceptNewest()
+                },
+                CommonItemClick(R.string.activity_finish_all_activities, true) {
+                    ActivityUtils.finishAllActivities()
+                }
+        )
+    }
+
+    private fun getOption(activityItem: ActivityItem): Bundle? {
+        when (Random().nextInt(5)) {
+            0 -> return ActivityOptionsCompat.makeCustomAnimation(this,
+                    R.anim.slide_right_in_1000,
+                    R.anim.slide_left_out_1000)
+                    .toBundle()
+            1 -> return ActivityOptionsCompat.makeScaleUpAnimation(activityItem.element,
+                    activityItem.element.width / 2,
+                    activityItem.element.height / 2,
+                    0, 0)
+                    .toBundle()
+            2 -> return ActivityOptionsCompat.makeThumbnailScaleUpAnimation(activityItem.element,
+                    (activityItem.element.drawable as BitmapDrawable).bitmap,
+                    0, 0)
+                    .toBundle()
+            3 -> return ActivityOptionsCompat.makeSceneTransitionAnimation(this,
+                    activityItem.element,
+                    StringUtils.getString(R.string.activity_shared_element))
+                    .toBundle()
+            else -> return ActivityOptionsCompat.makeClipRevealAnimation(activityItem.element,
+                    activityItem.element.width / 2,
+                    activityItem.element.height / 2,
+                    0, 0)
+                    .toBundle()
+        }
+    }
+}
+
+class ActivityItem : CommonItem<ActivityItem> {
+
+    lateinit var element: ImageView;
+
+    constructor() : super(R.layout.activity_item_shared_element_activity)
+
+    override fun bind(holder: ItemViewHolder, position: Int) {
+        super.bind(holder, position)
+        element = holder.findViewById(R.id.activityViewSharedElement)
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/SubActivityActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/SubActivityActivity.kt
new file mode 100644
index 0000000000..3505709cd2
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/SubActivityActivity.kt
@@ -0,0 +1,47 @@
+package com.blankj.utilcode.pkg.feature.activity
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import androidx.core.app.ActivityCompat
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.ColorUtils
+import kotlinx.android.synthetic.main.activity_sub_activity.*
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about ActivityUtils
+ * ```
+ */
+class SubActivityActivity : CommonActivity() {
+
+    override fun bindLayout(): Int {
+        return R.layout.activity_sub_activity
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        contentView?.setBackgroundColor(ColorUtils.getRandomColor(false))
+        activityViewSharedElement.setOnClickListener {
+            val result = Intent()
+            result.putExtra("data", "data")
+            this@SubActivityActivity.setResult(Activity.RESULT_OK, result)
+            this@SubActivityActivity.finish()
+        }
+    }
+
+    override fun onBackPressed() {
+        super.onBackPressed()
+        ActivityCompat.finishAfterTransition(this)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptCloseActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptCloseActivity.kt
new file mode 100644
index 0000000000..007724289c
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptCloseActivity.kt
@@ -0,0 +1,34 @@
+package com.blankj.utilcode.pkg.feature.adaptScreen
+
+import android.content.Context
+import android.content.Intent
+import android.content.res.Resources
+import android.os.Bundle
+import android.view.View
+import android.view.WindowManager
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.AdaptScreenUtils
+
+class AdaptCloseActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, AdaptCloseActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.adaptscreen_close_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
+    }
+
+    override fun getResources(): Resources {
+        return AdaptScreenUtils.closeAdapt(super.getResources())
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptHeightActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptHeightActivity.kt
new file mode 100644
index 0000000000..f00eedc77c
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptHeightActivity.kt
@@ -0,0 +1,41 @@
+package com.blankj.utilcode.pkg.feature.adaptScreen
+
+import android.content.Context
+import android.content.Intent
+import android.content.res.Resources
+import android.os.Bundle
+import android.view.View
+import android.view.WindowManager
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.AdaptScreenUtils
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.LogUtils
+
+class AdaptHeightActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, AdaptHeightActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.adaptscreen_height_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
+    }
+
+    override fun onResume() {
+        super.onResume()
+        LogUtils.e(BarUtils.getStatusBarHeight())
+    }
+
+    override fun getResources(): Resources {
+        return AdaptScreenUtils.adaptHeight(super.getResources(), 1920)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptScreenActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptScreenActivity.kt
new file mode 100644
index 0000000000..9219c75bb5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptScreenActivity.kt
@@ -0,0 +1,37 @@
+package com.blankj.utilcode.pkg.feature.adaptScreen
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+
+class AdaptScreenActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, AdaptScreenActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_adapt_screen
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.adaptScreen_adapt_width, true) {
+                    AdaptWidthActivity.start(this)
+                },
+                CommonItemClick(R.string.adaptScreen_adapt_height, true) {
+                    AdaptHeightActivity.start(this)
+                },
+                CommonItemClick(R.string.adaptScreen_adapt_close, true) {
+                    AdaptCloseActivity.start(this)
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptWidthActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptWidthActivity.kt
new file mode 100644
index 0000000000..6ccd3f45a0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptWidthActivity.kt
@@ -0,0 +1,37 @@
+package com.blankj.utilcode.pkg.feature.adaptScreen
+
+import android.content.Context
+import android.content.Intent
+import android.content.res.Resources
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.view.WindowManager
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.AdaptScreenUtils
+import kotlinx.android.synthetic.main.adaptscreen_width_activity.*
+
+class AdaptWidthActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, AdaptWidthActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.adaptscreen_width_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
+        adaptScreenWidthWebView.setBackgroundColor(Color.parseColor("#f0d26d"))
+    }
+
+    override fun getResources(): Resources {
+        return AdaptScreenUtils.adaptWidth(super.getResources(), 1080)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/ApiActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/ApiActivity.kt
new file mode 100644
index 0000000000..8e11495b09
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/ApiActivity.kt
@@ -0,0 +1,45 @@
+package com.blankj.utilcode.pkg.feature.api
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.feature.api.other.export.OtherModuleApi
+import com.blankj.utilcode.util.ApiUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/03/12
+ * desc  : demo about ApiUtils
+ * ```
+ */
+class ApiActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ApiActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_api
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.api_invoke_with_params) {
+                    ApiUtils.getApi(OtherModuleApi::class.java)?.invokeWithParams(OtherModuleApi.ApiBean("params"))
+                },
+                CommonItemClick(R.string.api_invoke_with_return_value) {
+                    ToastUtils.showShort(ApiUtils.getApi(OtherModuleApi::class.java)?.invokeWithReturnValue()?.name)
+                }
+        );
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/other/export/OtherModuleApi.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/other/export/OtherModuleApi.java
new file mode 100644
index 0000000000..5879724b01
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/other/export/OtherModuleApi.java
@@ -0,0 +1,27 @@
+package com.blankj.utilcode.pkg.feature.api.other.export;
+
+import com.blankj.utilcode.util.ApiUtils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/10
+ *     desc  : demo about ApiUtils
+ * </pre>
+ */
+public abstract class OtherModuleApi extends ApiUtils.BaseApi {
+
+    public abstract void invokeWithParams(ApiBean bean);
+
+    public abstract ApiBean invokeWithReturnValue();
+
+    public static class ApiBean {
+
+        public String name;
+
+        public ApiBean(String name) {
+            this.name = name;
+        }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/other/pkg/OtherPkgApiImpl.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/other/pkg/OtherPkgApiImpl.java
new file mode 100644
index 0000000000..b3efb7af7a
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/api/other/pkg/OtherPkgApiImpl.java
@@ -0,0 +1,28 @@
+package com.blankj.utilcode.pkg.feature.api.other.pkg;
+
+import com.blankj.utilcode.pkg.feature.api.other.export.OtherModuleApi;
+import com.blankj.utilcode.util.ApiUtils;
+import com.blankj.utilcode.util.ToastUtils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/10
+ *     desc  : demo about ApiUtils
+ * </pre>
+ */
+@ApiUtils.Api
+public class OtherPkgApiImpl extends OtherModuleApi {
+
+    @Override
+    public void invokeWithParams(ApiBean bean) {
+        ToastUtils.showShort(bean.name);
+    }
+
+    @Override
+    public ApiBean invokeWithReturnValue() {
+        String value = "value";
+        return new ApiBean(value);
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/app/AppActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/app/AppActivity.kt
new file mode 100644
index 0000000000..21eb351146
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/app/AppActivity.kt
@@ -0,0 +1,162 @@
+package com.blankj.utilcode.pkg.feature.app
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.*
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.pkg.Config
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about AppUtils
+ * ```
+ */
+class AppActivity : CommonActivity(), Utils.OnAppStatusChangedListener {
+
+    var isRegisterAppStatusChangedListener: Boolean = false
+
+    companion object {
+        fun start(context: Context) {
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, AppActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                }
+            }, PermissionConstants.STORAGE)
+        }
+    }
+
+    private val listener = object : OnReleasedListener {
+        override fun onReleased() {
+            return AppUtils.installApp(Config.TEST_APK_PATH)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_app
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        LogUtils.e(requestCode, resultCode)
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+            CommonItemSwitch(
+                "registerAppStatusChangedListener",
+                { isRegisterAppStatusChangedListener },
+                {
+                    isRegisterAppStatusChangedListener = it
+                    if (it) {
+                        AppUtils.registerAppStatusChangedListener(this)
+                    } else {
+                        AppUtils.unregisterAppStatusChangedListener(this)
+                    }
+                }),
+            CommonItemTitle("isAppRoot", AppUtils.isAppRoot().toString()),
+            CommonItemTitle("isAppDebug", AppUtils.isAppDebug().toString()),
+            CommonItemTitle("isAppSystem", AppUtils.isAppSystem().toString()),
+            CommonItemTitle(
+                "isAppForeground",
+                AppUtils.isAppForeground(AppUtils.getAppPackageName()).toString()
+            ),
+            CommonItemTitle(
+                "isAppRunning",
+                AppUtils.isAppRunning(AppUtils.getAppPackageName()).toString()
+            ),
+            CommonItemImage("getAppIcon") {
+                it.setImageDrawable(AppUtils.getAppIcon())
+            },
+            CommonItemTitle("getAppPackageName", AppUtils.getAppPackageName()),
+            CommonItemTitle("getAppName", AppUtils.getAppName()),
+            CommonItemTitle("getAppPath", AppUtils.getAppPath()),
+            CommonItemTitle("getAppVersionName", AppUtils.getAppVersionName()),
+            CommonItemTitle("getAppVersionCode", AppUtils.getAppVersionCode().toString()),
+            CommonItemTitle("getAppMinSdkVersion", AppUtils.getAppMinSdkVersion().toString()),
+            CommonItemTitle("getAppTargetSdkVersion", AppUtils.getAppTargetSdkVersion().toString()),
+            CommonItemTitle("getAppSignaturesSHA1", AppUtils.getAppSignaturesSHA1().toString()),
+            CommonItemTitle("getAppSignaturesSHA256", AppUtils.getAppSignaturesSHA256().toString()),
+            CommonItemTitle("getAppSignaturesMD5", AppUtils.getAppSignaturesMD5().toString()),
+            CommonItemTitle("getAppUid", AppUtils.getAppUid().toString()),
+            CommonItemTitle("getApkInfo", AppUtils.getApkInfo(AppUtils.getAppPath()).toString()),
+
+            CommonItemClick(R.string.app_install) {
+                if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
+                    ToastUtils.showShort(R.string.app_install_tips)
+                } else {
+                    if (!FileUtils.isFileExists(Config.TEST_APK_PATH)) {
+                        ReleaseInstallApkTask(listener).execute()
+                    } else {
+                        listener.onReleased()
+                    }
+                }
+            },
+            CommonItemClick(R.string.app_uninstall) {
+                if (AppUtils.isAppInstalled(Config.TEST_PKG)) {
+                    AppUtils.uninstallApp(Config.TEST_PKG)
+                } else {
+                    ToastUtils.showShort(R.string.app_uninstall_tips)
+                }
+            },
+            CommonItemClick(R.string.app_launch) {
+                AppUtils.launchApp(this.packageName)
+            },
+            CommonItemClick(R.string.app_relaunch) {
+                AppUtils.relaunchApp()
+            },
+            CommonItemClick(R.string.app_launch_details_settings, true) {
+                AppUtils.launchAppDetailsSettings()
+            },
+            CommonItemClick(R.string.app_exit) {
+                AppUtils.exitApp()
+            }
+        )
+    }
+
+    override fun onForeground(activity: Activity) {
+        ToastUtils.showShort("onForeground\n${activity.javaClass.simpleName}")
+    }
+
+    override fun onBackground(activity: Activity) {
+        ToastUtils.showShort("onBackground\n${activity.javaClass.simpleName}")
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        if (isRegisterAppStatusChangedListener) {
+            AppUtils.unregisterAppStatusChangedListener(this)
+        }
+    }
+}
+
+class ReleaseInstallApkTask(private val mListener: OnReleasedListener) :
+    ThreadUtils.SimpleTask<Unit>() {
+
+    override fun doInBackground() {
+        ResourceUtils.copyFileFromAssets("test_install", Config.TEST_APK_PATH)
+    }
+
+    override fun onSuccess(result: Unit) {
+        mListener.onReleased()
+    }
+
+    fun execute() {
+        ThreadUtils.executeByIo(this)
+    }
+}
+
+interface OnReleasedListener {
+    fun onReleased()
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/BarActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/BarActivity.kt
new file mode 100644
index 0000000000..26801106a0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/BarActivity.kt
@@ -0,0 +1,71 @@
+package com.blankj.utilcode.pkg.feature.bar
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.feature.bar.nav.BarNavActivity
+import com.blankj.utilcode.pkg.feature.bar.notification.BarNotificationActivity
+import com.blankj.utilcode.pkg.feature.bar.status.*
+import com.blankj.utilcode.pkg.feature.bar.status.fragment.BarStatusFragmentActivity
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/27
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_bar
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle(R.string.bar_about_status_bar, true),
+                CommonItemClick(R.string.bar_status_about, true) {
+                    BarStatusActivity.start(this)
+                },
+                CommonItemClick(R.string.bar_status_set_color, true) {
+                    BarStatusActivityColor.start(this)
+                },
+                CommonItemClick(R.string.bar_status_set_alpha, true) {
+                    BarStatusActivityAlpha.start(this)
+                },
+                CommonItemClick(R.string.bar_status_set_image_view, true) {
+                    BarStatusActivityImageView.start(this)
+                },
+                CommonItemClick(R.string.bar_status_set_custom, true) {
+                    BarStatusActivityCustom.start(this)
+                },
+                CommonItemClick(R.string.bar_status_set_fragment, true) {
+                    BarStatusFragmentActivity.start(this)
+                },
+                CommonItemClick(R.string.bar_status_set_drawer, true) {
+                    BarStatusActivityDrawer.start(this)
+                },
+                CommonItemTitle(R.string.bar_about_notification_bar, true),
+                CommonItemClick(R.string.bar_notification_about, true) {
+                    BarNotificationActivity.start(this)
+                },
+                CommonItemTitle(R.string.bar_about_nav_bar, true),
+                CommonItemClick(R.string.bar_nav_about, true) {
+                    BarNavActivity.start(this)
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/nav/BarNavActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/nav/BarNavActivity.kt
new file mode 100644
index 0000000000..48a738ecd7
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/nav/BarNavActivity.kt
@@ -0,0 +1,88 @@
+package com.blankj.utilcode.pkg.feature.bar.nav
+
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarNavActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarNavActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_bar
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>().apply {
+            add(CommonItemTitle("navHeight", BarUtils.getNavBarHeight().toString()))
+            add(CommonItemTitle("isSupportNavBar", BarUtils.isSupportNavBar().toString()))
+            if (BarUtils.isSupportNavBar()) {
+                add(CommonItemSwitch(
+                    R.string.bar_nav_visibility,
+                    { BarUtils.isNavBarVisible(this@BarNavActivity) },
+                    { BarUtils.setNavBarVisibility(this@BarNavActivity, it) }
+                ))
+
+                add(CommonItemSwitch(
+                    R.string.bar_nav_light_mode,
+                    { BarUtils.isNavBarLightMode(this@BarNavActivity) },
+                    { BarUtils.setNavBarLightMode(this@BarNavActivity, it) }
+                ))
+
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                    add(
+                        CommonItemClick(
+                            "getNavBarColor: ${
+                                ColorUtils.int2ArgbString(
+                                    BarUtils.getNavBarColor(
+                                        this@BarNavActivity
+                                    )
+                                )
+                            }"
+                        ).setOnItemClickListener() { _, item, _ ->
+                            BarUtils.setNavBarColor(
+                                this@BarNavActivity,
+                                ColorUtils.getRandomColor()
+                            )
+                            itemsView.updateItems(bindItems())
+                            item.title = "getNavBarColor: ${
+                                ColorUtils.int2ArgbString(
+                                    BarUtils.getNavBarColor(this@BarNavActivity)
+                                )
+                            }"
+                        })
+                }
+                add(CommonItemClick("transparentNavBar").setOnItemClickListener() { _, item, _ ->
+                    BarUtils.transparentNavBar(this@BarNavActivity)
+                })
+            }
+        }
+    }
+
+    override fun onWindowFocusChanged(hasFocus: Boolean) {
+        super.onWindowFocusChanged(hasFocus)
+        itemsView.updateItems(bindItems())
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/notification/BarNotificationActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/notification/BarNotificationActivity.kt
new file mode 100644
index 0000000000..5504912ee6
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/notification/BarNotificationActivity.kt
@@ -0,0 +1,49 @@
+package com.blankj.utilcode.pkg.feature.bar.notification
+
+import android.content.Context
+import android.content.Intent
+import android.os.Handler
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarNotificationActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarNotificationActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private val mHandler = Handler()
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_bar
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.bar_notification_show) {
+                    BarUtils.setNotificationBarVisibility(true)
+                    mHandler.postDelayed({ BarUtils.setNotificationBarVisibility(false) }, 2000)
+                }
+        )
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        mHandler.removeCallbacksAndMessages(null)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivity.kt
new file mode 100644
index 0000000000..da20870e79
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivity.kt
@@ -0,0 +1,55 @@
+package com.blankj.utilcode.pkg.feature.bar.status
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.Utils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_bar
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getStatusBarHeight", BarUtils.getStatusBarHeight().toString()),
+                CommonItemSwitch(
+                        R.string.bar_status_visibility,
+                        { BarUtils.isStatusBarVisible(this) },
+                        { BarUtils.setStatusBarVisibility(this, it) }
+                ),
+                CommonItemSwitch(
+                        R.string.bar_status_light_mode,
+                        { BarUtils.isStatusBarLightMode(this) },
+                        { BarUtils.setStatusBarLightMode(this, it) }
+                )
+        )
+    }
+
+    override fun onResume() {
+        super.onResume()
+        itemsView.updateItems(bindItems())
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityAlpha.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityAlpha.kt
new file mode 100644
index 0000000000..fa886e5be5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityAlpha.kt
@@ -0,0 +1,67 @@
+package com.blankj.utilcode.pkg.feature.bar.status
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.widget.SeekBar
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/27
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusActivityAlpha : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusActivityAlpha::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private var mAlpha: Int = 112
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_alpha_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+        updateStatusBar()
+    }
+
+    private fun getItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemSeekBar("Status Bar Alpha", 255, object : CommonItemSeekBar.ProgressListener() {
+                    override fun getCurValue(): Int {
+                        return mAlpha
+                    }
+
+                    override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                        mAlpha = progress
+                        updateStatusBar()
+                    }
+                }).apply {
+                    backgroundColor = ColorUtils.setAlphaComponent(backgroundColor, 0.5f)
+                }
+        )
+    }
+
+    private fun updateStatusBar() {
+        BarUtils.setStatusBarColor(this, Color.argb(mAlpha, 0, 0, 0))
+        BarUtils.addMarginTopEqualStatusBarHeight(findViewById(R.id.commonItemRv))// 其实这个只需要调用一次即可
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityColor.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityColor.kt
new file mode 100644
index 0000000000..74b6368e1b
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityColor.kt
@@ -0,0 +1,53 @@
+package com.blankj.utilcode.pkg.feature.bar.status
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/27
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusActivityColor : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusActivityColor::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private var mColor: Int = ColorUtils.getColor(R.color.colorPrimary)
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemClick(R.string.bar_status_random_color, ColorUtils.int2ArgbString(mColor)).setOnClickUpdateContentListener {
+                    mColor = ColorUtils.getRandomColor()
+                    updateStatusBar()
+                    return@setOnClickUpdateContentListener ColorUtils.int2ArgbString(mColor)
+                }
+        )
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        updateStatusBar()
+    }
+
+    private fun updateStatusBar() {
+        BarUtils.setStatusBarColor(this, mColor)
+        BarUtils.addMarginTopEqualStatusBarHeight(findViewById(R.id.commonItemRv))// 其实这个只需要调用一次即可
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityCustom.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityCustom.kt
new file mode 100644
index 0000000000..0cea718cf9
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityCustom.kt
@@ -0,0 +1,34 @@
+package com.blankj.utilcode.pkg.feature.bar.status
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/01/14
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusActivityCustom : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusActivityCustom::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        BarUtils.setStatusBarColor(this, Color.TRANSPARENT).setBackgroundResource(R.drawable.bar_status_custom)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityDrawer.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityDrawer.kt
new file mode 100644
index 0000000000..d8e092d466
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityDrawer.kt
@@ -0,0 +1,116 @@
+package com.blankj.utilcode.pkg.feature.bar.status
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.widget.SeekBar
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+import kotlinx.android.synthetic.main.bar_status_drawer_activity.*
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/27
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusActivityDrawer : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusActivityDrawer::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private var mColor: Int = ColorUtils.getColor(R.color.colorPrimary)
+    private var mAlpha: Int = 112
+
+    private var mAlphaStatus: Boolean = false
+    private var mFrontStatus: Boolean = false
+
+    override fun isSwipeBack(): Boolean {
+        return false
+    }
+
+    override fun bindDrawer(): Boolean {
+        return true
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_drawer_activity
+    }
+
+    private fun getItems(): MutableList<CommonItem<*>> {
+        val randomColorItem = CommonItemClick(R.string.bar_status_random_color, ColorUtils.int2ArgbString(mColor)).setOnClickUpdateContentListener {
+            mColor = ColorUtils.getRandomColor()
+            updateStatusBar()
+            return@setOnClickUpdateContentListener ColorUtils.int2ArgbString(mColor)
+        }
+
+        val alphaItem: CommonItem<*> = CommonItemSeekBar("Status Bar Alpha", 255, object : CommonItemSeekBar.ProgressListener() {
+            override fun getCurValue(): Int {
+                return mAlpha
+            }
+
+            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                mAlpha = progress
+                updateStatusBar()
+            }
+        })
+
+        return CollectionUtils.newArrayList(
+                CommonItemSwitch(
+                        R.string.bar_status_title_alpha,
+                        {
+                            updateStatusBar()
+                            mAlphaStatus
+                        },
+                        {
+                            mAlphaStatus = it
+                            if (mAlphaStatus) {
+                                barStatusDrawerRootLl.setBackgroundResource(R.drawable.image_lena)
+                                commonItemAdapter.replaceItem(2, alphaItem, true)
+                            } else {
+                                barStatusDrawerRootLl.setBackgroundColor(Color.TRANSPARENT)
+                                commonItemAdapter.replaceItem(2, randomColorItem, true)
+                            }
+                        }
+                ),
+                CommonItemSwitch(
+                        R.string.bar_status_is_front,
+                        { mFrontStatus },
+                        {
+                            mFrontStatus = it
+                            updateStatusBar()
+                        }
+                ),
+                randomColorItem
+        )
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+    }
+
+    private fun updateStatusBar() {
+        if (mAlphaStatus) {
+            BarUtils.setStatusBarColor4Drawer(drawerView.mBaseDrawerRootLayout, barStatusDrawerFakeStatusBar, Color.argb(mAlpha, 0, 0, 0), mFrontStatus)
+        } else {
+            BarUtils.setStatusBarColor4Drawer(drawerView.mBaseDrawerRootLayout, barStatusDrawerFakeStatusBar, mColor, mFrontStatus)
+        }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityImageView.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityImageView.kt
new file mode 100644
index 0000000000..86542caec5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/BarStatusActivityImageView.kt
@@ -0,0 +1,63 @@
+package com.blankj.utilcode.pkg.feature.bar.status
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.widget.SeekBar
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/27
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusActivityImageView : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusActivityImageView::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private var mAlpha: Int = 112
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_image_view_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+        updateStatusBar()
+    }
+
+    private fun getItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemSeekBar("Status Bar Alpha", 255, object : CommonItemSeekBar.ProgressListener() {
+                    override fun getCurValue(): Int {
+                        return mAlpha
+                    }
+
+                    override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                        mAlpha = progress
+                        updateStatusBar()
+                    }
+                })
+        )
+    }
+
+    private fun updateStatusBar() {
+        BarUtils.setStatusBarColor(this, Color.argb(mAlpha, 0, 0, 0), true)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentActivity.kt
new file mode 100644
index 0000000000..6df145b5be
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentActivity.kt
@@ -0,0 +1,101 @@
+package com.blankj.utilcode.pkg.feature.bar.status.fragment
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentPagerAdapter
+import androidx.viewpager.widget.ViewPager
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.google.android.material.bottomnavigation.BottomNavigationView
+import kotlinx.android.synthetic.main.bar_status_fragment_activity.*
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/05/27
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusFragmentActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BarStatusFragmentActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private val itemIds = intArrayOf(
+            R.id.barStatusFragmentNavigationColor,
+            R.id.barStatusFragmentNavigationAlpha,
+            R.id.barStatusFragmentNavigationImageView,
+            R.id.barStatusFragmentNavigationCustom
+    )
+
+    private val mFragmentList = ArrayList<androidx.fragment.app.Fragment>()
+
+    private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener l@{ item ->
+        when (item.itemId) {
+            R.id.barStatusFragmentNavigationColor -> {
+                barStatusFragmentVp.currentItem = 0
+                return@l true
+            }
+            R.id.barStatusFragmentNavigationAlpha -> {
+                barStatusFragmentVp.currentItem = 1
+                return@l true
+            }
+            R.id.barStatusFragmentNavigationImageView -> {
+                barStatusFragmentVp.currentItem = 2
+                return@l true
+            }
+            R.id.barStatusFragmentNavigationCustom -> {
+                barStatusFragmentVp.currentItem = 3
+                return@l true
+            }
+            else -> false
+        }
+    }
+
+    override fun isSwipeBack(): Boolean {
+        return false
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_fragment_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        mFragmentList.add(BarStatusFragmentColor.newInstance())
+        mFragmentList.add(BarStatusFragmentAlpha.newInstance())
+        mFragmentList.add(BarStatusFragmentImageView.newInstance())
+        mFragmentList.add(BarStatusFragmentCustom.newInstance())
+
+        barStatusFragmentVp.offscreenPageLimit = mFragmentList.size - 1
+        barStatusFragmentVp.adapter = object : FragmentPagerAdapter(supportFragmentManager) {
+            override fun getItem(position: Int): Fragment {
+                return mFragmentList[position]
+            }
+
+            override fun getCount(): Int {
+                return mFragmentList.size
+            }
+        }
+        barStatusFragmentVp.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
+            override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {}
+
+            override fun onPageSelected(position: Int) {
+                barStatusFragmentNav.selectedItemId = itemIds[position]
+            }
+
+            override fun onPageScrollStateChanged(state: Int) {}
+        })
+
+        barStatusFragmentNav.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentAlpha.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentAlpha.kt
new file mode 100644
index 0000000000..ab368c0295
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentAlpha.kt
@@ -0,0 +1,68 @@
+package com.blankj.utilcode.pkg.feature.bar.status.fragment
+
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.widget.SeekBar
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+import kotlinx.android.synthetic.main.bar_status_alpha_fragment.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/07/01
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusFragmentAlpha : CommonFragment() {
+
+    companion object {
+        fun newInstance(): BarStatusFragmentAlpha {
+            return BarStatusFragmentAlpha()
+        }
+    }
+
+    override fun isLazy(): Boolean {
+        return true
+    }
+
+    private var mAlpha: Int = 112
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_alpha_fragment
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+        updateFakeStatusBar()
+    }
+
+    private fun getItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemSeekBar("Status Bar Alpha", 255, object : CommonItemSeekBar.ProgressListener() {
+                    override fun getCurValue(): Int {
+                        return mAlpha
+                    }
+
+                    override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                        mAlpha = progress
+                        updateFakeStatusBar()
+                    }
+                }).apply {
+                    backgroundColor = ColorUtils.setAlphaComponent(backgroundColor, 0.5f)
+                }
+        )
+    }
+
+    fun updateFakeStatusBar() {
+        BarUtils.setStatusBarColor(barStatusAlphaFragmentFakeStatusBar, Color.argb(mAlpha, 0, 0, 0))
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentColor.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentColor.kt
new file mode 100644
index 0000000000..029523e59d
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentColor.kt
@@ -0,0 +1,59 @@
+package com.blankj.utilcode.pkg.feature.bar.status.fragment
+
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+import kotlinx.android.synthetic.main.bar_status_color_fragment.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/07/01
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusFragmentColor : CommonFragment() {
+
+    companion object {
+        fun newInstance(): BarStatusFragmentColor {
+            return BarStatusFragmentColor()
+        }
+    }
+
+    private var mColor: Int = ColorUtils.getColor(R.color.colorPrimary)
+
+    override fun isLazy(): Boolean {
+        return true
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_color_fragment
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+        updateFakeStatusBar()
+    }
+
+    private fun getItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemClick(R.string.bar_status_random_color, ColorUtils.int2ArgbString(mColor)).setOnClickUpdateContentListener {
+                    mColor = ColorUtils.getRandomColor()
+                    updateFakeStatusBar()
+                    return@setOnClickUpdateContentListener ColorUtils.int2ArgbString(mColor)
+                }
+        )
+    }
+
+    private fun updateFakeStatusBar() {
+        BarUtils.setStatusBarColor(barStatusColorFragmentFakeStatusBar, mColor)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentCustom.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentCustom.kt
new file mode 100644
index 0000000000..e8dbcd927c
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentCustom.kt
@@ -0,0 +1,38 @@
+package com.blankj.utilcode.pkg.feature.bar.status.fragment
+
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import kotlinx.android.synthetic.main.bar_status_custom_fragment.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/07/01
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusFragmentCustom : CommonFragment() {
+
+    companion object {
+        fun newInstance(): BarStatusFragmentCustom {
+            return BarStatusFragmentCustom()
+        }
+    }
+
+    override fun isLazy(): Boolean {
+        return true
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_custom_fragment
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        BarUtils.setStatusBarCustom(barStatusCustomFragmentFakeStatusBar)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentImageView.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentImageView.kt
new file mode 100644
index 0000000000..686e50995c
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/status/fragment/BarStatusFragmentImageView.kt
@@ -0,0 +1,65 @@
+package com.blankj.utilcode.pkg.feature.bar.status.fragment
+
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.widget.SeekBar
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.CollectionUtils
+import kotlinx.android.synthetic.main.bar_status_image_view_fragment.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/07/01
+ * desc  : demo about BarUtils
+ * ```
+ */
+class BarStatusFragmentImageView : CommonFragment() {
+
+    companion object {
+        fun newInstance(): BarStatusFragmentImageView {
+            return BarStatusFragmentImageView()
+        }
+    }
+
+    private var mAlpha: Int = 112
+
+    override fun isLazy(): Boolean {
+        return true
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.bar_status_image_view_fragment
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+        updateFakeStatusBar()
+    }
+
+    private fun getItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemSeekBar("Status Bar Alpha", 255, object : CommonItemSeekBar.ProgressListener() {
+                    override fun getCurValue(): Int {
+                        return mAlpha
+                    }
+
+                    override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                        mAlpha = progress
+                        updateFakeStatusBar()
+                    }
+                })
+        )
+    }
+
+    fun updateFakeStatusBar() {
+        BarUtils.setStatusBarColor(barStatusImageViewFragmentFakeStatusBar, Color.argb(mAlpha, 0, 0, 0))
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/brightness/BrightnessActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/brightness/BrightnessActivity.kt
new file mode 100644
index 0000000000..435a1ecbed
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/brightness/BrightnessActivity.kt
@@ -0,0 +1,76 @@
+package com.blankj.utilcode.pkg.feature.brightness
+
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.widget.SeekBar
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/02/08
+ * desc  : demo about BrightnessUtils
+ * ```
+ */
+class BrightnessActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                PermissionUtils.requestWriteSettings(object : PermissionUtils.SimpleCallback {
+                    override fun onGranted() {
+                        val starter = Intent(context, BrightnessActivity::class.java)
+                        context.startActivity(starter)
+                    }
+
+                    override fun onDenied() {
+                        ToastUtils.showLong("No permission of write settings.")
+                    }
+                })
+            } else {
+                val starter = Intent(context, BrightnessActivity::class.java)
+                context.startActivity(starter)
+            }
+        }
+    }
+
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_brightness
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemSeekBar("getBrightness", 255, object : CommonItemSeekBar.ProgressListener() {
+                    override fun getCurValue(): Int {
+                        return BrightnessUtils.getBrightness()
+                    }
+
+                    override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                        BrightnessUtils.setBrightness(progress)
+                    }
+                }),
+                CommonItemSeekBar("getWindowBrightness", 255, object : CommonItemSeekBar.ProgressListener() {
+                    override fun getCurValue(): Int {
+                        return BrightnessUtils.getWindowBrightness(window)
+                    }
+
+                    override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                        BrightnessUtils.setWindowBrightness(window, progress)
+                    }
+                }),
+                CommonItemSwitch(
+                        R.string.brightness_auto_brightness,
+                        { BrightnessUtils.isAutoBrightnessEnabled() },
+                        { BrightnessUtils.setAutoBrightnessEnabled(it) }
+                )
+        )
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusActivity.kt
new file mode 100644
index 0000000000..9bd7c870d0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusActivity.kt
@@ -0,0 +1,119 @@
+package com.blankj.utilcode.pkg.feature.bus
+
+import android.content.Context
+import android.content.Intent
+import androidx.annotation.Keep
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BusUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ThreadUtils
+import kotlin.random.Random
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/03/12
+ * desc  : demo about BusUtils
+ * ```
+ */
+class BusActivity : CommonActivity() {
+
+    private val titleItem: CommonItemTitle = CommonItemTitle("", true);
+
+    @BusUtils.Bus(tag = TAG_BASIC_TYPE)
+    fun test(param: Int) {
+        titleItem.title = param.toString()
+    }
+
+    @BusUtils.Bus(tag = TAG_BUS, priority = 5)
+    fun test(param: String) {
+        titleItem.title = param
+    }
+
+    @BusUtils.Bus(tag = TAG_BUS, priority = 1)
+    fun testSameTag(param: String) {
+        if (titleItem.title.toString() == TAG_BUS) {
+            titleItem.title = "${titleItem.title} * 2"
+        }
+    }
+
+    @BusUtils.Bus(tag = TAG_STICKY_BUS, sticky = true)
+    fun testSticky(callback: Callback) {
+        titleItem.title = callback.call()
+    }
+
+    @BusUtils.Bus(tag = TAG_IO, threadMode = BusUtils.ThreadMode.IO)
+    fun testIo() {
+        val currentThread = Thread.currentThread().toString()
+        ThreadUtils.runOnUiThread(Runnable {
+            titleItem.title = currentThread
+        })
+    }
+
+    companion object {
+        const val TAG_BASIC_TYPE = "tag_basic_type"
+        const val TAG_BUS = "tag_bus"
+        const val TAG_STICKY_BUS = "tag_sticky_bus"
+        const val TAG_IO = "tag_io"
+
+        fun start(context: Context) {
+            val starter = Intent(context, BusActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_bus
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                titleItem,
+                CommonItemClick(R.string.bus_register) {
+                    BusUtils.register(this)
+                },
+                CommonItemClick(R.string.bus_unregister) {
+                    BusUtils.unregister(this)
+                },
+                CommonItemClick(R.string.bus_post) {
+                    BusUtils.post(TAG_BUS, TAG_BUS)
+                },
+                CommonItemClick(R.string.bus_post_basic_type) {
+                    BusUtils.post(TAG_BASIC_TYPE, Random(System.currentTimeMillis()).nextInt())
+                },
+                CommonItemClick(R.string.bus_post_sticky) {
+                    BusUtils.postSticky(TAG_STICKY_BUS, object : Callback {
+                        override fun call(): String {
+                            return TAG_STICKY_BUS
+                        }
+                    })
+                },
+                CommonItemClick(R.string.bus_post_to_io_thread) {
+                    BusUtils.post(TAG_IO)
+                },
+                CommonItemClick(R.string.bus_remove_sticky) {
+                    BusUtils.removeSticky(TAG_STICKY_BUS)
+                },
+                CommonItemClick(R.string.bus_start_compare, true) {
+                    BusCompareActivity.start(this)
+                }
+        )
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        BusUtils.removeSticky(TAG_STICKY_BUS)
+        BusUtils.unregister(this)
+    }
+}
+
+@Keep
+interface Callback {
+    fun call(): String
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusCompareActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusCompareActivity.kt
new file mode 100644
index 0000000000..3064666c41
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusCompareActivity.kt
@@ -0,0 +1,281 @@
+package com.blankj.utilcode.pkg.feature.bus
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BusUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ThreadUtils
+import org.greenrobot.eventbus.EventBus
+import org.greenrobot.eventbus.Subscribe
+import java.util.*
+import java.util.concurrent.CopyOnWriteArrayList
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/07/14
+ * desc  : demo about BusUtils
+ * ```
+ */
+class BusCompareActivity : CommonActivity() {
+
+    private val titleItem: CommonItemTitle = CommonItemTitle("", true)
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, BusCompareActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_bus
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                titleItem,
+                CommonItemClick(R.string.bus_compare_register_10000_times) {
+                    compareRegister10000Times()
+                },
+                CommonItemClick(R.string.bus_compare_post_to_1_subscriber_1000000_times) {
+                    comparePostTo1Subscriber1000000Times()
+                },
+                CommonItemClick(R.string.bus_compare_post_to_100_subscriber_100000_times) {
+                    comparePostTo100Subscribers100000Times()
+                },
+                CommonItemClick(R.string.bus_compare_unregister_10000_times) {
+                    compareUnregister10000Times()
+                }
+        )
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        ThreadUtils.cancel(ThreadUtils.getCpuPool())
+    }
+
+    /**
+     * 注册 10000 个订阅者，共执行 10 次取平均值
+     */
+    private fun compareRegister10000Times() {
+        val eventBusTests = CopyOnWriteArrayList<BusEvent>()
+        val busUtilsTests = CopyOnWriteArrayList<BusEvent>()
+
+        compareWithEventBus("Register 10000 times.", 10, 10000, object : CompareCallback {
+            override fun runEventBus() {
+                val test = BusEvent()
+                EventBus.getDefault().register(test)
+                eventBusTests.add(test)
+            }
+
+            override fun runBusUtils() {
+                val test = BusEvent()
+                BusUtils.register(test)
+                busUtilsTests.add(test)
+            }
+
+            override fun restState() {
+                for (test in eventBusTests) {
+                    EventBus.getDefault().unregister(test)
+                }
+                eventBusTests.clear()
+
+                for (test in busUtilsTests) {
+                    BusUtils.unregister(test)
+                }
+                busUtilsTests.clear()
+            }
+        }, object : OnFinishCallback {
+            override fun onFinish() {
+                for (test in eventBusTests) {
+                    EventBus.getDefault().unregister(test)
+                }
+                eventBusTests.clear()
+
+                for (test in busUtilsTests) {
+                    BusUtils.unregister(test)
+                }
+                busUtilsTests.clear()
+            }
+        })
+    }
+
+    /**
+     * 向 1 个订阅者发送 * 1000000 次，共执行 10 次取平均值
+     */
+    private fun comparePostTo1Subscriber1000000Times() {
+        comparePostTemplate("Post to 1 subscriber 1000000 times.", 1, 1000000)
+    }
+
+    /**
+     * 向 100 个订阅者发送 * 100000 次，共执行 10 次取平均值
+     */
+    private fun comparePostTo100Subscribers100000Times() {
+        comparePostTemplate("Post to 100 subscribers 100000 times.", 100, 100000)
+    }
+
+    private fun comparePostTemplate(name: String, subscribeNum: Int, postTimes: Int) {
+        val tests = java.util.ArrayList<BusEvent>()
+        for (i in 0 until subscribeNum) {
+            val test = BusEvent()
+            EventBus.getDefault().register(test)
+            BusUtils.register(test)
+            tests.add(test)
+        }
+
+        compareWithEventBus(name, 10, postTimes, object : CompareCallback {
+            override fun runEventBus() {
+                EventBus.getDefault().post("EventBus")
+            }
+
+            override fun runBusUtils() {
+                BusUtils.post("busUtilsFun", "BusUtils")
+            }
+
+            override fun restState() {
+
+            }
+        }, object : OnFinishCallback {
+            override fun onFinish() {
+                for (test in tests) {
+                    EventBus.getDefault().unregister(test)
+                    BusUtils.unregister(test)
+                }
+            }
+        })
+    }
+
+    /**
+     * 注销 10000 个订阅者，共执行 10 次取平均值
+     */
+    private fun compareUnregister10000Times() {
+        showLoading()
+        ThreadUtils.executeBySingle(object : ThreadUtils.SimpleTask<List<BusEvent>>() {
+            override fun doInBackground(): List<BusEvent> {
+                val tests = ArrayList<BusEvent>()
+                for (i in 0..9999) {
+                    val test = BusEvent()
+                    EventBus.getDefault().register(test)
+                    BusUtils.register(test)
+                    tests.add(test)
+                }
+                return tests
+            }
+
+            override fun onSuccess(tests: List<BusEvent>) {
+                compareWithEventBus("Unregister 10000 times.", 10, 1, object : CompareCallback {
+                    override fun runEventBus() {
+                        for (test in tests) {
+                            EventBus.getDefault().unregister(test)
+                        }
+                    }
+
+                    override fun runBusUtils() {
+                        for (test in tests) {
+                            BusUtils.unregister(test)
+                        }
+                    }
+
+                    override fun restState() {
+                        for (test in tests) {
+                            EventBus.getDefault().register(test)
+                            BusUtils.register(test)
+                        }
+                    }
+                }, object : OnFinishCallback {
+                    override fun onFinish() {
+                        for (test in tests) {
+                            EventBus.getDefault().unregister(test)
+                            BusUtils.unregister(test)
+                        }
+                    }
+                })
+            }
+        })
+    }
+
+    /**
+     * @param name             传入的测试函数名
+     * @param sampleSize       样本数
+     * @param times            每次执行的次数
+     * @param callback         比较的回调函数
+     * @param onFinishCallback 执行结束的回调
+     */
+    private fun compareWithEventBus(name: String, sampleSize: Int, times: Int,
+                                    callback: CompareCallback, onFinishCallback: OnFinishCallback) {
+        showLoading()
+        ThreadUtils.executeByCpu(object : ThreadUtils.Task<String>() {
+            override fun doInBackground(): String {
+                val dur = Array(2) { LongArray(sampleSize) }
+                for (i in 0 until sampleSize) {
+                    var cur = System.currentTimeMillis()
+                    for (j in 0 until times) {
+                        callback.runEventBus()
+                    }
+                    dur[0][i] = System.currentTimeMillis() - cur
+                    cur = System.currentTimeMillis()
+                    for (j in 0 until times) {
+                        callback.runBusUtils()
+                    }
+                    dur[1][i] = System.currentTimeMillis() - cur
+                    callback.restState()
+                }
+                var eventBusAverageTime: Long = 0
+                var busUtilsAverageTime: Long = 0
+                for (i in 0 until sampleSize) {
+                    eventBusAverageTime += dur[0][i]
+                    busUtilsAverageTime += dur[1][i]
+                }
+                return name +
+                        "\nEventBusCostTime: " + eventBusAverageTime / sampleSize +
+                        "\nBusUtilsCostTime: " + busUtilsAverageTime / sampleSize;
+            }
+
+            override fun onSuccess(result: String?) {
+                onFinishCallback.onFinish()
+                dismissLoading()
+                titleItem?.title = result
+            }
+
+            override fun onCancel() {
+                onFinishCallback.onFinish()
+                dismissLoading()
+            }
+
+            override fun onFail(t: Throwable?) {
+                onFinishCallback.onFinish()
+                dismissLoading()
+            }
+        })
+    }
+}
+
+interface CompareCallback {
+    fun runEventBus()
+
+    fun runBusUtils()
+
+    fun restState()
+}
+
+interface OnFinishCallback {
+    fun onFinish()
+}
+
+class BusEvent {
+    @Subscribe
+    fun eventBusFun(param: String) {
+    }
+
+    @BusUtils.Bus(tag = "busUtilsFun")
+    fun busUtilsFun(param: String) {
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clean/CleanActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clean/CleanActivity.kt
new file mode 100644
index 0000000000..f0b8620eca
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clean/CleanActivity.kt
@@ -0,0 +1,76 @@
+package com.blankj.utilcode.pkg.feature.clean
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CleanUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.SDCardUtils
+import com.blankj.utilcode.util.SnackbarUtils
+import java.io.File
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  : demo about CleanUtils
+ * ```
+ */
+class CleanActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, CleanActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_clean
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>().apply {
+            add(CommonItemClick(R.string.clean_internal_cache) {
+                showSnackbar(CleanUtils.cleanInternalCache(), cacheDir.path)
+            })
+            add(CommonItemClick(R.string.clean_internal_files) {
+                showSnackbar(CleanUtils.cleanInternalFiles(), filesDir.path)
+            })
+            add(CommonItemClick(R.string.clean_internal_databases) {
+                showSnackbar(CleanUtils.cleanInternalDbs(), filesDir.parent + File.separator + "databases")
+            })
+            add(CommonItemClick(R.string.clean_internal_sp) {
+                showSnackbar(CleanUtils.cleanInternalSp(), filesDir.parent + File.separator + "shared_prefs")
+            })
+            if (SDCardUtils.isSDCardEnableByEnvironment()) {
+                add(CommonItemClick(R.string.clean_external_cache) {
+                    showSnackbar(CleanUtils.cleanExternalCache(), externalCacheDir?.absolutePath)
+                })
+            }
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
+                add(CommonItemClick(R.string.clean_app_user_data) {
+                    CleanUtils.cleanAppUserData()
+                })
+            }
+        }
+    }
+
+    private fun showSnackbar(isSuccess: Boolean, path: String?) {
+        SnackbarUtils.with(mContentView)
+                .setDuration(SnackbarUtils.LENGTH_LONG)
+                .apply {
+                    if (isSuccess) {
+                        setMessage("clean \"$path\" dir successful.")
+                        showSuccess()
+                    } else {
+                        setMessage("clean \"$path\" dir failed.")
+                        showError()
+                    }
+                }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/click/ClickActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/click/ClickActivity.kt
new file mode 100644
index 0000000000..7a6a112c15
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/click/ClickActivity.kt
@@ -0,0 +1,115 @@
+package com.blankj.utilcode.pkg.feature.click
+
+import android.content.Context
+import android.content.Intent
+import android.view.View
+import android.widget.TextView
+import androidx.annotation.StringRes
+import com.blankj.base.rv.ItemViewHolder
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  : demo about ClickUtils
+ * ```
+ */
+class ClickActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ClickActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_click
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                ClickItem(R.string.click_view_scale_default, Utils.Consumer {
+                    ClickUtils.applyPressedViewScale(it)
+                }),
+                ClickItem(R.string.click_view_scale_half, Utils.Consumer {
+                    ClickUtils.applyPressedViewScale(it, -0.5f)
+                }),
+                ClickItem(R.string.click_view_alpha_default, Utils.Consumer {
+                    ClickUtils.applyPressedViewAlpha(it)
+                }),
+                ClickItem(R.string.click_bg_alpha_default, Utils.Consumer {
+                    ClickUtils.applyPressedBgAlpha(it, 0.6f)
+                }),
+                ClickItem(R.string.click_bg_dark_default, Utils.Consumer {
+                    ClickUtils.applyPressedBgDark(it)
+                }),
+                ClickItem(R.string.click_single_debouncing, Utils.Consumer {
+                    ClickUtils.applyPressedBgDark(it)
+                    ClickUtils.applySingleDebouncing(it, 5000) {
+                        SnackbarUtils.with(mContentView)
+                                .setMessage(StringUtils.getString(R.string.click_single_tip))
+                                .setBgColor(ColorUtils.getRandomColor(false))
+                                .setDuration(SnackbarUtils.LENGTH_LONG)
+                                .show()
+                    }
+                }),
+                ClickItem(R.string.click_global_debouncing, Utils.Consumer {
+                    ClickUtils.applyPressedBgDark(it)
+                    ClickUtils.applySingleDebouncing(it, 5000) {
+                        SnackbarUtils.with(mContentView)
+                                .setMessage(StringUtils.getString(R.string.click_global_tip))
+                                .setBgColor(ColorUtils.getRandomColor(false))
+                                .setDuration(SnackbarUtils.LENGTH_LONG)
+                                .show()
+                    }
+                }),
+                ClickItem(R.string.click_multi, Utils.Consumer {
+                    ClickUtils.applyPressedBgDark(it)
+                    it.setOnClickListener(object : ClickUtils.OnMultiClickListener(5) {
+                        override fun onTriggerClick(v: View) {
+                            ToastUtils.showShort("onTriggerClick")
+                        }
+
+                        override fun onBeforeTriggerClick(v: View, count: Int) {
+                            ToastUtils.showShort(count)
+                        }
+                    })
+                })
+        )
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        SnackbarUtils.dismiss()
+    }
+}
+
+class ClickItem : CommonItem<ClickItem> {
+
+    private val mConsumer: Utils.Consumer<View>;
+    private val mTitle: String
+
+    constructor(@StringRes title: Int, consumer: Utils.Consumer<View>) : super(R.layout.common_item_title_click) {
+        mConsumer = consumer
+        mTitle = StringUtils.getString(title)
+    }
+
+    override fun bind(holder: ItemViewHolder, position: Int) {
+        super.bind(holder, position)
+        holder.findViewById<TextView>(R.id.commonItemTitleTv).text = mTitle
+        holder.itemView.setOnClickListener() {
+            SnackbarUtils.with(it)
+                    .setMessage(mTitle)
+                    .setBgColor(ColorUtils.getRandomColor(false))
+                    .setDuration(SnackbarUtils.LENGTH_LONG)
+                    .show()
+        }
+        mConsumer.accept(holder.itemView)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clipboard/ClipboardActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clipboard/ClipboardActivity.kt
new file mode 100644
index 0000000000..824fdf02ca
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clipboard/ClipboardActivity.kt
@@ -0,0 +1,76 @@
+package com.blankj.utilcode.pkg.feature.clipboard
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.ClipboardUtils
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2020/09/11
+ * desc  : demo about ClipboardUtils
+ * ```
+ */
+class ClipboardActivity : CommonActivity() {
+
+    private var index: Int = 0
+    private var isAddListener: Boolean = false
+    private var listener = {
+        ToastUtils.showShort(ClipboardUtils.getText())
+    }
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ClipboardActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_clipboard
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getText", ClipboardUtils.getText()),
+                CommonItemTitle("getLabel", ClipboardUtils.getLabel()),
+                CommonItemClick("copyText: value{$index}").setOnItemClickListener { _, _, _ ->
+                    ClipboardUtils.copyText("value{${index++}}")
+                    itemsView.updateItems(bindItems())
+                },
+                CommonItemClick("clear").setOnItemClickListener { _, _, _ ->
+                    ClipboardUtils.clear()
+                    itemsView.updateItems(bindItems())
+                },
+                CommonItemSwitch("clipChangeListener", { isAddListener }, {
+                    isAddListener = it
+                    if (isAddListener) {
+                        ClipboardUtils.addChangedListener(listener)
+                    } else {
+                        ClipboardUtils.removeChangedListener(listener)
+                    }
+                })
+        )
+    }
+
+    override fun onResume() {
+        super.onResume()
+        itemsView.updateItems(bindItems())
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        if (isAddListener) {
+            ClipboardUtils.removeChangedListener(listener)
+        }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/device/DeviceActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/device/DeviceActivity.kt
new file mode 100644
index 0000000000..d70fe14e93
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/device/DeviceActivity.kt
@@ -0,0 +1,56 @@
+package com.blankj.utilcode.pkg.feature.device
+
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.DeviceUtils
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog : http://blankj.com
+ * time : 2016/09/27
+ * desc : demo about DeviceUtils
+ * ```
+ */
+class DeviceActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, DeviceActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_device
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return arrayListOf<CommonItem<*>>().apply {
+            add(CommonItemTitle("isRoot", DeviceUtils.isDeviceRooted().toString()))
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+                add(CommonItemTitle("isAdbEnabled", DeviceUtils.isAdbEnabled().toString()))
+            }
+            add(CommonItemTitle("getSDKVersionName", DeviceUtils.getSDKVersionName()))
+            add(CommonItemTitle("getSDKVersionCode", DeviceUtils.getSDKVersionCode().toString()))
+            add(CommonItemTitle("getAndroidID", DeviceUtils.getAndroidID()))
+            add(CommonItemTitle("getMacAddress", DeviceUtils.getMacAddress()))
+            add(CommonItemTitle("getManufacturer", DeviceUtils.getManufacturer()))
+            add(CommonItemTitle("getModel", DeviceUtils.getModel()))
+            add(CommonItemTitle("getABIs", Arrays.asList(*DeviceUtils.getABIs()).toString()))
+            add(CommonItemTitle("isTablet", DeviceUtils.isTablet().toString()))
+            add(CommonItemTitle("isEmulator", DeviceUtils.isEmulator().toString()))
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
+                add(CommonItemTitle("isDevelopmentSettingsEnabled", DeviceUtils.isDevelopmentSettingsEnabled().toString()))
+            }
+            add(CommonItemTitle("getUniqueDeviceId", DeviceUtils.getUniqueDeviceId("util")))
+            add(CommonItemTitle("isSameDevice", DeviceUtils.isSameDevice(DeviceUtils.getUniqueDeviceId()).toString()))
+        }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/file/FileActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/file/FileActivity.kt
new file mode 100644
index 0000000000..de8220dd18
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/file/FileActivity.kt
@@ -0,0 +1,59 @@
+package com.blankj.utilcode.pkg.feature.file
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.Config.CACHE_PATH
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.FileUtils
+import com.blankj.utilcode.util.PathUtils
+import com.blankj.utilcode.util.SnackbarUtils
+import java.io.File
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  : demo about FileUtils
+ * ```
+ */
+class FileActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, FileActivity::class.java)
+            context.startActivity(starter)
+        }
+
+        val TEST_FILE_PATH: String = CACHE_PATH + "test_file.txt"
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_file
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("isFileExists: " + PathUtils.getInternalAppFilesPath(), "" + FileUtils.isFileExists(PathUtils.getInternalAppFilesPath())),
+                CommonItemTitle("isFileExists: " + PathUtils.getExternalAppFilesPath(), "" + FileUtils.isFileExists(PathUtils.getExternalAppFilesPath())),
+                CommonItemTitle("isFileExists: " + PathUtils.getExternalStoragePath(), "" + FileUtils.isFileExists(PathUtils.getExternalStoragePath())),
+                CommonItemTitle("isFileExists: " + PathUtils.getDownloadCachePath(), "" + FileUtils.isFileExists(PathUtils.getDownloadCachePath())),
+                CommonItemTitle("isFileExists: " + PathUtils.getExternalDownloadsPath(), "" + FileUtils.isFileExists(PathUtils.getExternalDownloadsPath())),
+
+                CommonItemTitle("isFileExists: " + PathUtils.getInternalAppFilesPath(), "" + FileUtils.isFileExists(File(PathUtils.getInternalAppFilesPath()))),
+                CommonItemTitle("isFileExists: " + PathUtils.getExternalAppFilesPath(), "" + FileUtils.isFileExists(File(PathUtils.getExternalAppFilesPath()))),
+                CommonItemTitle("isFileExists: " + PathUtils.getExternalStoragePath(), "" + FileUtils.isFileExists(File(PathUtils.getExternalStoragePath()))),
+                CommonItemTitle("isFileExists: " + PathUtils.getDownloadCachePath(), "" + FileUtils.isFileExists(File(PathUtils.getDownloadCachePath()))),
+                CommonItemTitle("isFileExists: " + PathUtils.getExternalDownloadsPath(), "" + FileUtils.isFileExists(File(PathUtils.getExternalDownloadsPath())))
+        )
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        SnackbarUtils.dismiss()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/flashlight/FlashlightActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/flashlight/FlashlightActivity.kt
new file mode 100644
index 0000000000..c5f602b9e3
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/flashlight/FlashlightActivity.kt
@@ -0,0 +1,64 @@
+package com.blankj.utilcode.pkg.feature.flashlight
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/04/27
+ * desc  : demo about FlashlightUtils
+ * ```
+ */
+class FlashlightActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            if (!FlashlightUtils.isFlashlightEnable()) {
+                ToastUtils.showLong("Didn't support flashlight.")
+                return
+            }
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, FlashlightActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                    LogUtils.e("permission denied")
+                }
+            }, PermissionConstants.CAMERA)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_flashlight
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>().apply {
+            add(CommonItemTitle("isFlashlightEnable", FlashlightUtils.isFlashlightEnable().toString()))
+            if (FlashlightUtils.isFlashlightEnable()) {
+                add(CommonItemSwitch(
+                        R.string.flashlight_status,
+                        { FlashlightUtils.isFlashlightOn() },
+                        { FlashlightUtils.setFlashlightStatus(it) }
+                ))
+            }
+        }
+    }
+
+    override fun onDestroy() {
+        FlashlightUtils.destroy()
+        super.onDestroy()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/ChildFragment.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/ChildFragment.kt
new file mode 100644
index 0000000000..a4b1450de5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/ChildFragment.kt
@@ -0,0 +1,81 @@
+package com.blankj.utilcode.pkg.feature.fragment
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.FragmentManager
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.helper.DialogHelper
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+import com.blankj.utilcode.util.FragmentUtils
+import com.blankj.utilcode.util.SpanUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/02
+ * desc  : demo about FragmentUtils
+ * ```
+ */
+class ChildFragment : CommonFragment() {
+
+    companion object {
+        fun newInstance(): ChildFragment {
+            val args = Bundle()
+            val fragment = ChildFragment()
+            fragment.arguments = args
+            return fragment
+        }
+    }
+
+    private lateinit var fm: FragmentManager
+    private val mBgColor = ColorUtils.getRandomColor(false)
+
+    override fun bindLayout(): Int {
+        return R.layout.fragment_child
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        FragmentUtils.setBackgroundColor(this, mBgColor)
+        fm = fragmentManager!!
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+    }
+
+    private fun getItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemClick(R.string.fragment_show_stack) {
+                    DialogHelper.showFragmentDialog(
+                            SpanUtils().appendLine("top: " + FragmentUtils.getSimpleName(FragmentUtils.getTop(fm)))
+                                    .appendLine("topInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopInStack(fm)))
+                                    .appendLine("topShow: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShow(fm)))
+                                    .appendLine("topShowInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShowInStack(fm)))
+                                    .appendLine()
+                                    .appendLine("---all of fragments---")
+                                    .appendLine(FragmentUtils.getAllFragments(fm).toString())
+                                    .appendLine("----------------------")
+                                    .appendLine()
+                                    .appendLine("---stack top---")
+                                    .appendLine(FragmentUtils.getAllFragmentsInStack(fm).toString())
+                                    .appendLine("---stack bottom---")
+                                    .create()
+                    )
+                },
+                CommonItemClick(R.string.fragment_pop) {
+                    FragmentUtils.pop(fm)
+                },
+                CommonItemClick(R.string.fragment_remove) {
+                    FragmentUtils.remove(this)
+                },
+                SharedElementItem()
+        ).apply {
+            for (ci: CommonItem<*> in this) {
+                ci.backgroundColor = mBgColor
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/ContainerFragment.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/ContainerFragment.kt
new file mode 100644
index 0000000000..e21eb521fb
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/ContainerFragment.kt
@@ -0,0 +1,178 @@
+package com.blankj.utilcode.pkg.feature.fragment
+
+import android.os.Build
+import android.os.Bundle
+import android.transition.*
+import android.view.View
+import android.widget.ImageView
+import androidx.annotation.RequiresApi
+import androidx.fragment.app.FragmentManager
+import com.blankj.base.rv.ItemViewHolder
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.helper.DialogHelper
+import com.blankj.utilcode.util.*
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/02
+ * desc  : demo about FragmentUtils
+ * ```
+ */
+class ContainerFragment : CommonFragment(), FragmentUtils.OnBackClickListener {
+
+    companion object {
+        fun newInstance(): ContainerFragment {
+            val args = Bundle()
+            val fragment = ContainerFragment()
+            fragment.arguments = args
+            return fragment
+        }
+    }
+
+    private lateinit var fm: FragmentManager
+    private val mBgColor = ColorUtils.getRandomColor(false)
+
+    override fun bindLayout(): Int {
+        return R.layout.fragment_container
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        mContentView.setBackgroundColor(mBgColor)
+        fm = fragmentManager!!
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+    }
+
+    private fun getItems(): ArrayList<CommonItem<*>>? {
+        val item = SharedElementItem()
+        return CollectionUtils.newArrayList<CommonItem<*>>(
+                CommonItemClick(R.string.fragment_show_stack) {
+                    DialogHelper.showFragmentDialog(
+                            SpanUtils().appendLine("top: " + FragmentUtils.getSimpleName(FragmentUtils.getTop(fm)))
+                                    .appendLine("topInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopInStack(fm)))
+                                    .appendLine("topShow: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShow(fm)))
+                                    .appendLine("topShowInStack: " + FragmentUtils.getSimpleName(FragmentUtils.getTopShowInStack(fm)))
+                                    .appendLine()
+                                    .appendLine("---all of fragments---")
+                                    .appendLine(FragmentUtils.getAllFragments(fm).toString())
+                                    .appendLine("----------------------")
+                                    .appendLine()
+                                    .appendLine("---stack top---")
+                                    .appendLine(FragmentUtils.getAllFragmentsInStack(fm).toString())
+                                    .appendLine("---stack bottom---")
+                                    .create()
+                    )
+                },
+                CommonItemClick(R.string.fragment_add_child) {
+                    FragmentUtils.add(
+                            fm,
+                            ChildFragment.newInstance(),
+                            id
+                    )
+                },
+                CommonItemClick(R.string.fragment_add_child_stack) {
+                    FragmentUtils.add(
+                            fm,
+                            ChildFragment.newInstance(),
+                            id,
+                            false,
+                            true
+                    )
+                },
+                CommonItemClick(R.string.fragment_add_hide) {
+                    FragmentUtils.add(
+                            fm,
+                            ChildFragment.newInstance(),
+                            id,
+                            true
+                    )
+                },
+                CommonItemClick(R.string.fragment_add_hide_stack) {
+                    FragmentUtils.add(
+                            fm,
+                            ChildFragment.newInstance(),
+                            id,
+                            true,
+                            true
+                    )
+                },
+                CommonItemClick(R.string.fragment_add_demo1_show) {
+                    FragmentUtils.add(
+                            fm,
+                            addSharedElement(ChildFragment.newInstance()),
+                            id,
+                            false,
+                            false
+                    )
+                },
+                CommonItemClick(R.string.fragment_pop_to_root) {
+                    FragmentUtils.popTo(
+                            fm,
+                            ChildFragment::class.java,
+                            true
+                    )
+                },
+                CommonItemClick(R.string.fragment_hide_demo0_show_demo1) {
+                    val fragment1 = FragmentUtils.findFragment(fm, ChildFragment::class.java)
+                    if (fragment1 != null) {
+                        FragmentUtils.showHide(this, fragment1)
+                    } else {
+                        ToastUtils.showLong("please add demo1 first!")
+                    }
+                },
+                CommonItemClick(R.string.fragment_replace) {
+                    FragmentUtils.replace(
+                            fm,
+                            addSharedElement(ChildFragment.newInstance()),
+                            id,
+                            true,
+                            item.element
+                    )
+                },
+                item
+        ).apply {
+            for (ci: CommonItem<*> in this) {
+                ci.backgroundColor = mBgColor
+            }
+        }
+    }
+
+    private fun addSharedElement(fragment: androidx.fragment.app.Fragment): androidx.fragment.app.Fragment {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            fragment.sharedElementEnterTransition = DetailTransition()
+            fragment.enterTransition = Fade()
+            fragment.sharedElementReturnTransition = DetailTransition()
+        }
+        return fragment
+    }
+
+    override fun onBackClick(): Boolean {
+        return false
+    }
+}
+
+class SharedElementItem : CommonItem<SharedElementItem> {
+
+    lateinit var element: ImageView;
+
+    constructor() : super(R.layout.fragment_item_shared_element)
+
+    override fun bind(holder: ItemViewHolder, position: Int) {
+        super.bind(holder, position)
+        element = holder.findViewById(R.id.fragmentRootSharedElementIv)
+    }
+}
+
+@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+class DetailTransition() : TransitionSet() {
+    init {
+        ordering = ORDERING_TOGETHER
+        addTransition(ChangeBounds()).addTransition(ChangeTransform()).addTransition(ChangeImageTransform())
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/FragmentActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/FragmentActivity.kt
new file mode 100644
index 0000000000..5b337e48d5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/FragmentActivity.kt
@@ -0,0 +1,91 @@
+package com.blankj.utilcode.pkg.feature.fragment
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.os.PersistableBundle
+import com.google.android.material.bottomnavigation.BottomNavigationView
+import androidx.fragment.app.Fragment
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.FragmentUtils
+import kotlinx.android.synthetic.main.fragment_activity.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/01
+ * desc  : demo about FragmentUtils
+ * ```
+ */
+class FragmentActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, FragmentActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private val mFragments = arrayListOf<androidx.fragment.app.Fragment>()
+    private var curIndex: Int = 0
+
+    private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
+        when (item.itemId) {
+            R.id.fragmentNavigation0 -> {
+                showCurrentFragment(0)
+                return@OnNavigationItemSelectedListener true
+            }
+            R.id.fragmentNavigation1 -> {
+                showCurrentFragment(1)
+                return@OnNavigationItemSelectedListener true
+            }
+            R.id.fragmentNavigation2 -> {
+                showCurrentFragment(2)
+                return@OnNavigationItemSelectedListener true
+            }
+            else -> false
+        }
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.fragment_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        if (savedInstanceState != null) {
+            curIndex = savedInstanceState.getInt("curIndex")
+        }
+        fragmentNav.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
+
+        mFragments.add(RootFragment.newInstance())
+        mFragments.add(RootFragment.newInstance())
+        mFragments.add(RootFragment.newInstance())
+        FragmentUtils.add(
+                supportFragmentManager,
+                mFragments,
+                R.id.fragmentContainer,
+                arrayOf("RootFragment0", "RootFragment1", "RootFragment2"),
+                curIndex
+        )
+    }
+
+    override fun onBackPressed() {
+        if (!FragmentUtils.dispatchBackPress(mFragments[curIndex])) {
+            super.onBackPressed()
+        }
+    }
+
+    private fun showCurrentFragment(index: Int) {
+        curIndex = index
+        FragmentUtils.showHide(index, mFragments)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle, outPersistentState: PersistableBundle) {
+        super.onSaveInstanceState(outState, outPersistentState)
+        outState.putInt("curIndex", curIndex)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/RootFragment.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/RootFragment.kt
new file mode 100644
index 0000000000..d2a9ac7bab
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/RootFragment.kt
@@ -0,0 +1,54 @@
+package com.blankj.utilcode.pkg.feature.fragment
+
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.fragment.CommonFragment
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.BarUtils
+import com.blankj.utilcode.util.ColorUtils
+import com.blankj.utilcode.util.FragmentUtils
+import kotlinx.android.synthetic.main.fragment_root.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 17/02/02
+ * desc  : demo about FragmentUtils
+ * ```
+ */
+class RootFragment : CommonFragment(), FragmentUtils.OnBackClickListener {
+
+    companion object {
+        fun newInstance(): RootFragment {
+            val args = Bundle()
+            val fragment = RootFragment()
+            fragment.arguments = args
+            return fragment
+        }
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.fragment_root
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        BarUtils.setStatusBarColor(rootFragmentFakeStatusBar, ColorUtils.getColor(R.color.colorPrimary))
+        FragmentUtils.add(
+                childFragmentManager,
+                ContainerFragment.newInstance(),
+                R.id.rootFragmentContainer
+        )
+    }
+
+    override fun onBackClick(): Boolean {
+        if (FragmentUtils.dispatchBackPress(childFragmentManager)) return true
+        return if (childFragmentManager.backStackEntryCount == 0) {
+            false
+        } else {
+            childFragmentManager.popBackStack()
+            true
+        }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/image/ImageActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/image/ImageActivity.kt
new file mode 100644
index 0000000000..995bbb22c1
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/image/ImageActivity.kt
@@ -0,0 +1,206 @@
+package com.blankj.utilcode.pkg.feature.image
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.os.Build
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemImage
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.pkg.Config
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+import java.io.File
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/26
+ * desc  : demo about ImageUtils
+ * ```
+ */
+class ImageActivity : CommonActivity() {
+
+    private val savePath = Config.CACHE_PATH + "lena.jpg"
+    private val titleItem: CommonItemTitle = CommonItemTitle("isImage: $savePath", "");
+
+    companion object {
+        fun start(context: Context) {
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, ImageActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                }
+            }, PermissionConstants.STORAGE)
+        }
+    }
+
+    private val bgTask: ThreadUtils.SimpleTask<List<CommonItem<*>>> = object : ThreadUtils.SimpleTask<List<CommonItem<*>>>() {
+        override fun doInBackground(): List<CommonItem<*>> {
+            return bindItems()
+        }
+
+        override fun onSuccess(result: List<CommonItem<*>>) {
+            dismissLoading()
+            itemsView.updateItems(result)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_image
+    }
+
+    override fun bindItems(): ArrayList<CommonItem<*>> {
+        if (ThreadUtils.isMainThread()) return arrayListOf()
+        val src = ImageUtils.getBitmap(R.drawable.image_lena)
+        val round = ImageUtils.getBitmap(R.drawable.common_avatar_round)
+        val watermark = ImageUtils.getBitmap(R.mipmap.ic_launcher)
+
+        val width = src.width
+        val height = src.height
+
+        titleItem.setContent(ImageUtils.isImage(savePath).toString())
+
+        return CollectionUtils.newArrayList<CommonItem<*>>().apply {
+            add(titleItem)
+            add(CommonItemClick("Save to $savePath") {
+                ThreadUtils.executeBySingle(object : ThreadUtils.SimpleTask<Boolean>() {
+                    override fun doInBackground(): Boolean {
+                        return ImageUtils.save(src, savePath, Bitmap.CompressFormat.JPEG)
+                    }
+
+                    override fun onSuccess(result: Boolean) {
+                        titleItem.setContent(ImageUtils.isImage(savePath).toString())
+                        titleItem.update()
+                        SnackbarUtils.with(mContentView)
+                                .setDuration(SnackbarUtils.LENGTH_LONG)
+                                .apply {
+                                    if (result) {
+                                        setMessage("save successful.")
+                                                .showSuccess(true)
+                                    } else {
+                                        setMessage("save failed.")
+                                                .showError(true)
+                                    }
+                                }
+                    }
+                })
+            })
+            add(CommonItemClick("Save to Album") {
+                ThreadUtils.executeBySingle(object : ThreadUtils.SimpleTask<File?>() {
+                    override fun doInBackground(): File? {
+                        return ImageUtils.save2Album(src, Bitmap.CompressFormat.JPEG)
+                    }
+
+                    override fun onSuccess(result: File?) {
+                        SnackbarUtils.with(mContentView)
+                                .setDuration(SnackbarUtils.LENGTH_LONG)
+                                .apply {
+                                    if (result != null) {
+                                        setMessage("save successful.")
+                                                .showSuccess(true)
+                                    } else {
+                                        setMessage("save failed.")
+                                                .showError(true)
+                                    }
+                                }
+                    }
+                })
+            })
+            add(CommonItemImage(R.string.image_src) {
+                it.setImageBitmap(src)
+            })
+            add(CommonItemImage(R.string.image_add_color) {
+                it.setImageBitmap(ImageUtils.drawColor(src, Color.parseColor("#8000FF00")))
+            })
+            add(CommonItemImage(R.string.image_scale) {
+                it.setImageBitmap(ImageUtils.scale(src, width / 2, height / 2))
+            })
+            add(CommonItemImage(R.string.image_clip) {
+                it.setImageBitmap(ImageUtils.clip(src, 0, 0, width / 2, height / 2))
+            })
+            add(CommonItemImage(R.string.image_skew) {
+                it.setImageBitmap(ImageUtils.skew(src, 0.2f, 0.1f))
+            })
+            add(CommonItemImage(R.string.image_rotate) {
+                it.setImageBitmap(ImageUtils.rotate(src, 90, (width / 2).toFloat(), (height / 2).toFloat()))
+            })
+            add(CommonItemImage(R.string.image_to_round) {
+                it.setImageBitmap(ImageUtils.toRound(src))
+            })
+            add(CommonItemImage(R.string.image_to_round_border) {
+                it.setImageBitmap(ImageUtils.toRound(src, 16, Color.GREEN))
+            })
+            add(CommonItemImage(R.string.image_to_round_corner) {
+                it.setImageBitmap(ImageUtils.toRoundCorner(src, 80f))
+            })
+            add(CommonItemImage(R.string.image_to_round_corner_border) {
+                it.setImageBitmap(ImageUtils.toRoundCorner(src, 80f, 16f, Color.GREEN))
+            })
+            add(CommonItemImage(R.string.image_to_round_corner_border) {
+                it.setImageBitmap(ImageUtils.toRoundCorner(src, floatArrayOf(0f, 0f, 80f, 80f, 0f, 0f, 80f, 80f), 16f, Color.GREEN))
+            })
+            add(CommonItemImage(R.string.image_add_corner_border) {
+                it.setImageBitmap(ImageUtils.addCornerBorder(src, 16f, Color.GREEN, 80f))
+            })
+            add(CommonItemImage(R.string.image_add_corner_border) {
+                it.setImageBitmap(ImageUtils.addCornerBorder(src, 16f, Color.GREEN, floatArrayOf(0f, 0f, 80f, 80f, 0f, 0f, 80f, 80f)))
+            })
+            add(CommonItemImage(R.string.image_add_circle_border) {
+                it.setImageBitmap(ImageUtils.addCircleBorder(src, 16f, Color.GREEN))
+            })
+            add(CommonItemImage(R.string.image_add_reflection) {
+                it.setImageBitmap(ImageUtils.addReflection(src, 80))
+            })
+            add(CommonItemImage(R.string.image_add_text_watermark) {
+                it.setImageBitmap(ImageUtils.addTextWatermark(src, "blankj", 40, Color.GREEN, 0f, 0f))
+            })
+            add(CommonItemImage(R.string.image_add_image_watermark) {
+                it.setImageBitmap(ImageUtils.addImageWatermark(src, watermark, 0, 0, 0x88))
+            })
+            add(CommonItemImage(R.string.image_to_gray) {
+                it.setImageBitmap(ImageUtils.toGray(src))
+            })
+            add(CommonItemImage(R.string.image_fast_blur) {
+                it.setImageBitmap(ImageUtils.fastBlur(src, 0.1f, 5f))
+            })
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+                add(CommonItemImage(R.string.image_render_script_blur) {
+                    it.setImageBitmap(ImageUtils.renderScriptBlur(src, 10f))
+                })
+            }
+            add(CommonItemImage(R.string.image_stack_blur) {
+                it.setImageBitmap(ImageUtils.stackBlur(src, 10))
+            })
+            add(CommonItemImage(R.string.image_compress_by_scale) {
+                it.setImageBitmap(ImageUtils.compressByScale(src, 0.5f, 0.5f))
+            })
+            add(CommonItemImage(R.string.image_compress_by_sample_size) {
+                it.setImageBitmap(ImageUtils.compressBySampleSize(src, 2))
+            })
+        }
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        showLoading()
+        ThreadUtils.executeByIo(bgTask)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        ThreadUtils.cancel(bgTask)
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/intent/IntentActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/intent/IntentActivity.kt
new file mode 100644
index 0000000000..06650d0b45
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/intent/IntentActivity.kt
@@ -0,0 +1,77 @@
+package com.blankj.utilcode.pkg.feature.intent
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.Config
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2020/05/29
+ * desc  : demo about IntentUtils
+ * ```
+ */
+class IntentActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, IntentActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_intent
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick("LaunchApp") {
+                    startActivity(IntentUtils.getLaunchAppIntent(packageName))
+                },
+                CommonItemClick("LaunchAppDetailsSettings") {
+                    startActivityForResult(IntentUtils.getLaunchAppDetailsSettingsIntent(packageName), 1)
+                },
+                CommonItemClick("ShareText") {
+                    startActivity(IntentUtils.getShareTextIntent("share content"))
+                },
+                CommonItemClick("ShareImage") {
+                    startActivity(IntentUtils.getShareImageIntent(getShareImagePath()[0]));
+                },
+                CommonItemClick("ShareTextImage") {
+                    startActivity(IntentUtils.getShareTextImageIntent("share content", getShareImagePath()[0]));
+                },
+                CommonItemClick("ShareImages") {
+                    startActivity(IntentUtils.getShareImageIntent(getShareImagePath()));
+                },
+                CommonItemClick("ShareTextImages") {
+                    startActivity(IntentUtils.getShareTextImageIntent("share content", getShareImagePath()));
+                }
+        )
+    }
+
+    private fun getShareImagePath(): LinkedList<String> {
+        val shareImagePath0 = Config.CACHE_PATH + "share.jpg"
+        if (!FileUtils.isFile(shareImagePath0)) {
+            ImageUtils.save(ImageUtils.getBitmap(R.drawable.image_lena), shareImagePath0, Bitmap.CompressFormat.JPEG)
+        }
+        val shareImagePath1 = Config.CACHE_PATH + "cheetah.jpg"
+        if (!FileUtils.isFile(shareImagePath1)) {
+            ImageUtils.save(ImageUtils.getBitmap(R.drawable.span_cheetah), shareImagePath1, Bitmap.CompressFormat.JPEG)
+        }
+        return CollectionUtils.newLinkedList(shareImagePath0, shareImagePath1)
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        LogUtils.d("onActivityResult() called with: requestCode = $requestCode, resultCode = $resultCode, data = $data")
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/keyboard/KeyboardActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/keyboard/KeyboardActivity.kt
new file mode 100644
index 0000000000..5ed25ae4fe
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/keyboard/KeyboardActivity.kt
@@ -0,0 +1,73 @@
+package com.blankj.utilcode.pkg.feature.keyboard
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.helper.DialogHelper
+import com.blankj.utilcode.util.*
+import kotlinx.android.synthetic.main.keyboard_activity.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/27
+ * desc  : demo about KeyboardUtils
+ * ```
+ */
+class KeyboardActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, KeyboardActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private var titleItem: CommonItemTitle = CommonItemTitle("", true)
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_keyboard
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.keyboard_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        KeyboardUtils.fixAndroidBug5497(this)
+        setCommonItems(findViewById(R.id.commonItemRv), getItems())
+        KeyboardUtils.registerSoftInputChangedListener(this) { height ->
+            titleItem.title = "isSoftInputVisible: " + KeyboardUtils.isSoftInputVisible(this@KeyboardActivity) + "\nkeyboardHeight: $height"
+            if (height > 0) {
+                keyboardEt.requestFocus()
+            }
+        }
+    }
+
+    private fun getItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                titleItem,
+                CommonItemClick(R.string.keyboard_hide_soft_input) {
+                    KeyboardUtils.hideSoftInput(this)
+                },
+                CommonItemClick(R.string.keyboard_show_soft_input) {
+                    KeyboardUtils.showSoftInput(this)
+                },
+                CommonItemClick(R.string.keyboard_toggle_soft_input) {
+                    KeyboardUtils.toggleSoftInput()
+                },
+                CommonItemClick(R.string.keyboard_show_dialog) {
+                    keyboardEt.clearFocus()
+                    DialogHelper.showKeyboardDialog(this)
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/language/LanguageActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/language/LanguageActivity.kt
new file mode 100644
index 0000000000..c928da21fa
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/language/LanguageActivity.kt
@@ -0,0 +1,73 @@
+package com.blankj.utilcode.pkg.feature.language
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.LanguageUtils
+import com.blankj.utilcode.util.SPStaticUtils
+import com.blankj.utilcode.util.StringUtils
+import java.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/12/29
+ * desc  : demo about VibrateUtils
+ * ```
+ */
+class LanguageActivity : CommonActivity() {
+
+    companion object {
+
+        const val SP_KEY_IS_RELAUNCH_APP = "SP_KEY_IS_RELAUNCH_APP"
+
+        fun start(context: Context) {
+            val starter = Intent(context, LanguageActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_language
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("isAppliedLanguage", LanguageUtils.isAppliedLanguage().toString()),
+                CommonItemTitle("isAppliedLanguage(SIMPLIFIED_CHINESE)", LanguageUtils.isAppliedLanguage(Locale.SIMPLIFIED_CHINESE).toString()),
+                CommonItemTitle("getAppliedLanguage", (LanguageUtils.getAppliedLanguage() ?: "null").toString()),
+                CommonItemTitle("getActivityContextLanguage", LanguageUtils.getContextLanguage(this).toString()),
+                CommonItemTitle("getAppContextLanguage", LanguageUtils.getAppContextLanguage().toString()),
+                CommonItemTitle("getSystemLanguage", LanguageUtils.getSystemLanguage().toString()),
+                CommonItemSwitch(
+                        StringUtils.getString(R.string.language_relaunch_app),
+                        { isRelaunchApp() },
+                        { SPStaticUtils.put(SP_KEY_IS_RELAUNCH_APP, it) }
+                ),
+                CommonItemClick(R.string.language_apply_simple_chinese) {
+                    LanguageUtils.applyLanguage(Locale.SIMPLIFIED_CHINESE, isRelaunchApp())
+                },
+                CommonItemClick(R.string.language_apply_american) {
+                    LanguageUtils.applyLanguage(Locale.US, isRelaunchApp())
+                },
+                CommonItemClick(R.string.language_apply_english) {
+                    LanguageUtils.applyLanguage(Locale.ENGLISH, isRelaunchApp())
+                },
+                CommonItemClick(R.string.language_apply_arabic) {
+                    LanguageUtils.applyLanguage(Locale("ar"), isRelaunchApp())
+                },
+                CommonItemClick(R.string.language_apply_system) {
+                    LanguageUtils.applySystemLanguage(isRelaunchApp())
+                }
+        )
+    }
+
+    private fun isRelaunchApp() = SPStaticUtils.getBoolean(SP_KEY_IS_RELAUNCH_APP)
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/log/LogActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/log/LogActivity.kt
new file mode 100644
index 0000000000..096df003e4
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/log/LogActivity.kt
@@ -0,0 +1,270 @@
+package com.blankj.utilcode.pkg.feature.log
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.util.Log
+import com.blankj.base.BaseApplication
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+import java.io.File
+import java.util.*
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/03/22
+ * desc  : demo about LogUtils
+ * ```
+ */
+class LogActivity : CommonActivity() {
+
+    companion object {
+        private const val TAG = "CMJ"
+        private const val JSON = "{\"tools\": [{ \"name\":\"css format\" , \"site\":\"http://tools.w3cschool.cn/code/css\" },{ \"name\":\"JSON format\" , \"site\":\"http://tools.w3cschool.cn/code/JSON\" },{ \"name\":\"pwd check\" , \"site\":\"http://tools.w3cschool.cn/password/my_password_safe\" }]}"
+        private const val XML = "<books><book><author>Jack Herrington</author><title>PHP Hacks</title><publisher>O'Reilly</publisher></book><book><author>Jack Herrington</author><title>Podcasting Hacks</title><publisher>O'Reilly</publisher></book></books>"
+        private val ONE_D_ARRAY = intArrayOf(1, 2, 3)
+        private val TWO_D_ARRAY = arrayOf(intArrayOf(1, 2, 3), intArrayOf(4, 5, 6), intArrayOf(7, 8, 9))
+        private val THROWABLE = NullPointerException()
+        private val BUNDLE = Bundle()
+        private val INTENT = Intent()
+        private val LIST = ArrayList<String>()
+        private val MAP = HashMap<String, String>()
+
+        private val LONG_STR: String
+
+        init {
+            val sb = StringBuilder()
+            sb.append("len = 10400\ncontent = \"")
+            for (i in 0..1024) {
+                sb.append("Hello world. ")
+            }
+            sb.append("\"")
+            LONG_STR = sb.toString()
+
+            BUNDLE.putByte("byte", (-1).toByte())
+            BUNDLE.putChar("char", 'c')
+            BUNDLE.putCharArray("charArray", charArrayOf('c', 'h', 'a', 'r', 'A', 'r', 'r', 'a', 'y'))
+            BUNDLE.putCharSequence("charSequence", "charSequence")
+            BUNDLE.putCharSequenceArray("charSequenceArray", arrayOf<CharSequence>("char", "Sequence", "Array"))
+            BUNDLE.putBundle("bundle", BUNDLE)
+            BUNDLE.putBoolean("boolean", true)
+            BUNDLE.putInt("int", 1)
+            BUNDLE.putFloat("float", 1f)
+            BUNDLE.putLong("long", 1L)
+            BUNDLE.putShort("short", 1.toShort())
+
+            INTENT.action = "LogUtils action"
+            INTENT.addCategory("LogUtils category")
+            INTENT.data = Uri.parse("intent data")
+            INTENT.type = "intent type"
+            INTENT.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            INTENT.setPackage(AppUtils.getAppPackageName())
+            INTENT.component = ComponentName(AppUtils.getAppPackageName(), LogActivity::class.java.toString())
+            INTENT.putExtra("int", 1)
+            INTENT.putExtra("float", 1f)
+            INTENT.putExtra("char", 'c')
+            INTENT.putExtra("string", "string")
+            INTENT.putExtra("intArray", ONE_D_ARRAY)
+            val list = ArrayList<String>()
+            list.add("ArrayList")
+            list.add("is")
+            list.add("serializable")
+            INTENT.putExtra("serializable", list)
+            INTENT.putExtra("bundle", BUNDLE)
+
+            LIST.add("hello")
+            LIST.add("log")
+            LIST.add("utils")
+
+            MAP["name"] = "AndroidUtilCode"
+            MAP["class"] = "LogUtils"
+        }
+
+        fun start(context: Context) {
+            val starter = Intent(context, LogActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private val mConfig = LogUtils.getConfig()
+
+    private val mRunnable = Runnable {
+        LogUtils.v("verbose")
+        LogUtils.d("debug")
+        LogUtils.i("info")
+        LogUtils.w("warn")
+        LogUtils.e("error")
+        LogUtils.a("assert")
+    }
+
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_log
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getLogFiles", LogUtils.getLogFiles().toString()),
+                CommonItemSwitch(
+                        R.string.log_switch,
+                        { mConfig.isLogSwitch },
+                        { mConfig.isLogSwitch = it }
+                ),
+                CommonItemSwitch(
+                        R.string.log_console_switch,
+                        { mConfig.isLog2ConsoleSwitch },
+                        { mConfig.setConsoleSwitch(it) }
+                ),
+                CommonItemSwitch(
+                        R.string.log_console_listener_switch,
+                        { mConfig.haveSetOnConsoleOutputListener() },
+                        { mConfig.setOnConsoleOutputListener { type, tag, content -> Log.println(type, tag, content) } }
+                ),
+                CommonItemClick("Global Tag", if (mConfig.globalTag == "") "null" else mConfig.globalTag).setOnClickUpdateContentListener {
+                    if (StringUtils.isSpace(mConfig.globalTag)) {
+                        mConfig.globalTag = TAG
+                    } else {
+                        mConfig.globalTag = ""
+                    }
+                    return@setOnClickUpdateContentListener if (mConfig.globalTag == "") "\"\"" else mConfig.globalTag
+                },
+                CommonItemSwitch(
+                        R.string.log_head_switch,
+                        { mConfig.isLogHeadSwitch },
+                        { mConfig.isLogHeadSwitch = it }
+                ),
+                CommonItemSwitch(
+                        R.string.log_file_switch,
+                        { mConfig.isLog2FileSwitch },
+                        { mConfig.isLog2FileSwitch = it }
+                ),
+                CommonItemSwitch(
+                        R.string.log_file_listener_switch,
+                        { mConfig.haveSetOnFileOutputListener() },
+                        { mConfig.setOnFileOutputListener { filePath, content -> Log.d("LogActivity", filePath + "\n" + content) } }
+                ),
+                CommonItemClick("Dir", mConfig.dir).setOnClickUpdateContentListener {
+                    if (mConfig.dir != mConfig.defaultDir) {
+                        mConfig.dir = mConfig.defaultDir
+                    } else {
+                        mConfig.setDir(File(PathUtils.getExternalAppFilesPath(), "log"))
+                    }
+                    return@setOnClickUpdateContentListener mConfig.dir
+                },
+                CommonItemSwitch(
+                        R.string.log_border_switch,
+                        { mConfig.isLogBorderSwitch },
+                        { mConfig.setBorderSwitch(it) }
+                ),
+                CommonItemSwitch(
+                        R.string.log_single_tag_switch,
+                        { mConfig.isSingleTagSwitch },
+                        { mConfig.setSingleTagSwitch(it) }
+                ),
+                CommonItemSwitch(
+                        R.string.log_single_tag_switch,
+                        { mConfig.isSingleTagSwitch },
+                        { mConfig.setSingleTagSwitch(it) }
+                ),
+                CommonItemClick("ConsoleFilter", mConfig.consoleFilter.toString()).setOnClickUpdateContentListener {
+                    mConfig.setConsoleFilter(if (mConfig.consoleFilter == 'V') LogUtils.W else LogUtils.V)
+                    return@setOnClickUpdateContentListener mConfig.consoleFilter.toString()
+                },
+                CommonItemClick("FileFilter", mConfig.fileFilter.toString()).setOnClickUpdateContentListener {
+                    mConfig.setFileFilter(if (mConfig.fileFilter == 'V') LogUtils.W else LogUtils.V)
+                    return@setOnClickUpdateContentListener mConfig.fileFilter.toString()
+                },
+                CommonItemClick(R.string.log_with_no_tag) {
+                    LogUtils.v("verbose")
+                    LogUtils.d("debug")
+                    LogUtils.i("info")
+                    LogUtils.w("warn")
+                    LogUtils.e("error")
+                    LogUtils.a("assert")
+                },
+                CommonItemClick(R.string.log_with_tag) {
+                    LogUtils.vTag("customTag", "verbose")
+                    LogUtils.dTag("customTag", "debug")
+                    LogUtils.iTag("customTag", "info")
+                    LogUtils.wTag("customTag", "warn")
+                    LogUtils.eTag("customTag", "error")
+                    LogUtils.aTag("customTag", "assert")
+                },
+                CommonItemClick(R.string.log_in_new_thread) {
+                    val thread = Thread(mRunnable)
+                    thread.start()
+                },
+                CommonItemClick(R.string.log_null) {
+                    LogUtils.v(null)
+                    LogUtils.d(null)
+                    LogUtils.i(null)
+                    LogUtils.w(null)
+                    LogUtils.e(null)
+                    LogUtils.a(null)
+                },
+                CommonItemClick(R.string.log_many_params) {
+                    LogUtils.v("verbose0", "verbose1")
+                    LogUtils.vTag("customTag", "verbose0", "verbose1")
+                    LogUtils.d("debug0", "debug1")
+                    LogUtils.dTag("customTag", "debug0", "debug1")
+                    LogUtils.i("info0", "info1")
+                    LogUtils.iTag("customTag", "info0", "info1")
+                    LogUtils.w("warn0", "warn1")
+                    LogUtils.wTag("customTag", "warn0", "warn1")
+                    LogUtils.e("error0", "error1")
+                    LogUtils.eTag("customTag", "error0", "error1")
+                    LogUtils.a("assert0", "assert1")
+                    LogUtils.aTag("customTag", "assert0", "assert1")
+                },
+                CommonItemClick(R.string.log_long_string) {
+                    LogUtils.d(LONG_STR)
+                },
+                CommonItemClick(R.string.log_to_file) {
+                    LogUtils.file("test0 log to file")
+                    LogUtils.file(LogUtils.I, "test0 log to file")
+                },
+                CommonItemClick(R.string.log_json) {
+                    LogUtils.json(JSON)
+                    LogUtils.json(LogUtils.I, JSON)
+                },
+                CommonItemClick(R.string.log_xml) {
+                    LogUtils.xml(XML)
+                    LogUtils.xml(LogUtils.I, XML)
+                },
+                CommonItemClick(R.string.log_array) {
+                    LogUtils.e(ONE_D_ARRAY)
+                    LogUtils.e(TWO_D_ARRAY)
+                },
+                CommonItemClick(R.string.log_throwable) {
+                    LogUtils.e(THROWABLE)
+                },
+                CommonItemClick(R.string.log_bundle) {
+                    LogUtils.e(BUNDLE)
+                },
+                CommonItemClick(R.string.log_intent) {
+                    LogUtils.e(INTENT)
+                },
+                CommonItemClick(R.string.log_array_list) {
+                    LogUtils.e(LIST)
+                },
+                CommonItemClick(R.string.log_map) {
+                    LogUtils.e(MAP)
+                }
+        )
+    }
+
+    override fun onDestroy() {
+        BaseApplication.getInstance().initLog()
+        super.onDestroy()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/messenger/MessengerActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/messenger/MessengerActivity.kt
new file mode 100644
index 0000000000..3d00af0e1a
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/messenger/MessengerActivity.kt
@@ -0,0 +1,71 @@
+package com.blankj.utilcode.pkg.feature.messenger
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.activity.CommonActivityItemsView
+import com.blankj.common.activity.CommonActivityTitleView
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.MessengerUtils
+import com.blankj.utilcode.util.SnackbarUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/03/12
+ * desc  : demo about MessengerUtils
+ * ```
+ */
+class MessengerActivity : CommonActivity() {
+
+    companion object {
+        const val MESSENGER_KEY = "MessengerActivity"
+
+        fun start(context: Context) {
+            val starter = Intent(context, MessengerActivity::class.java)
+            context.startActivity(starter)
+            MessengerUtils.register()
+        }
+
+        val BUNDLE = Bundle()
+
+        init {
+            BUNDLE.putString(MESSENGER_KEY, "MessengerActivity")
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_messenger
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.messenger_post_to_main_server) {
+                    MessengerUtils.post(MESSENGER_KEY, BUNDLE)
+                },
+                CommonItemClick(R.string.messenger_start_remote) {
+                    MessengerRemoteActivity.start(this)
+                }
+        )
+    }
+
+    override fun doBusiness() {
+        MessengerUtils.subscribe(MESSENGER_KEY) { data ->
+            SnackbarUtils.with(mContentView)
+                    .setMessage(data.getString(MESSENGER_KEY) ?: "")
+                    .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
+                    .show()
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        MessengerUtils.unregister()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/messenger/MessengerRemoteActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/messenger/MessengerRemoteActivity.kt
new file mode 100644
index 0000000000..acd6c58fde
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/messenger/MessengerRemoteActivity.kt
@@ -0,0 +1,76 @@
+package com.blankj.utilcode.pkg.feature.messenger
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.activity.CommonActivityItemsView
+import com.blankj.common.activity.CommonActivityTitleView
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.MessengerUtils
+import com.blankj.utilcode.util.SnackbarUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/03/12
+ * desc  : demo about MessengerUtils
+ * ```
+ */
+class MessengerRemoteActivity : CommonActivity() {
+
+    companion object {
+        const val MESSENGER_KEY = "MessengerRemoteActivity"
+
+        fun start(context: Context) {
+            val starter = Intent(context, MessengerRemoteActivity::class.java)
+            context.startActivity(starter)
+        }
+
+        val BUNDLE = Bundle()
+
+        init {
+            BUNDLE.putString(MESSENGER_KEY, "MessengerRemoteActivity")
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_messenger
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.messenger_register_remote_client) {
+                    MessengerUtils.register()
+                },
+                CommonItemClick(R.string.messenger_unregister_remote_client) {
+                    MessengerUtils.unregister()
+                },
+                CommonItemClick(R.string.messenger_post_to_self_client) {
+                    MessengerUtils.post(MESSENGER_KEY, BUNDLE)
+                },
+                CommonItemClick(R.string.messenger_post_to_main_server) {
+                    MessengerUtils.post(MessengerActivity.MESSENGER_KEY, MessengerActivity.BUNDLE)
+                }
+        )
+    }
+
+    override fun doBusiness() {
+        MessengerUtils.subscribe(MESSENGER_KEY) { data ->
+            SnackbarUtils.with(mContentView)
+                    .setMessage(data.getString(MESSENGER_KEY) ?: "")
+                    .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
+                    .show()
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        MessengerUtils.unsubscribe(MESSENGER_KEY)
+        MessengerUtils.unregister()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/metaData/MetaDataActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/metaData/MetaDataActivity.kt
new file mode 100644
index 0000000000..77bb5f8e82
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/metaData/MetaDataActivity.kt
@@ -0,0 +1,39 @@
+package com.blankj.utilcode.pkg.feature.metaData
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.MetaDataUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/05/15
+ * desc  : demo about MetaDataUtils
+ * ```
+ */
+class MetaDataActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, MetaDataActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_meta_data
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getMetaDataInApp", MetaDataUtils.getMetaDataInApp("app_meta_data")),
+                CommonItemTitle("getMetaDataInActivity", MetaDataUtils.getMetaDataInActivity(this, "activity_meta_data").substring(1))
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpActivity.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpActivity.java
new file mode 100644
index 0000000000..7fff29f4a7
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpActivity.java
@@ -0,0 +1,43 @@
+package com.blankj.utilcode.pkg.feature.mvp;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+
+import com.blankj.common.activity.CommonActivity;
+import com.blankj.utilcode.pkg.R;
+
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/09
+ *     desc  :
+ * </pre>
+ */
+public class MvpActivity extends CommonActivity {
+
+    public static void start(Context context) {
+        Intent starter = new Intent(context, MvpActivity.class);
+        context.startActivity(starter);
+    }
+
+    @Override
+    public int bindTitleRes() {
+        return R.string.demo_mvp;
+    }
+
+    @Override
+    public int bindLayout() {
+        return R.layout.mvp_activity;
+    }
+
+    @Override
+    public void initView(@Nullable Bundle savedInstanceState, @Nullable View contentView) {
+        super.initView(savedInstanceState, contentView);
+        new MvpView(this).addPresenter(new MvpPresenter());
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpModel.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpModel.java
new file mode 100644
index 0000000000..e16b4f1934
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpModel.java
@@ -0,0 +1,44 @@
+package com.blankj.utilcode.pkg.feature.mvp;
+
+import com.blankj.base.mvp.BaseModel;
+import com.blankj.utilcode.util.ThreadUtils;
+import com.blankj.utilcode.util.Utils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/26
+ *     desc  :
+ * </pre>
+ */
+public class MvpModel extends BaseModel implements MvpMvp.Model {
+
+    private int index;
+
+    @Override
+    public void onCreate() {
+        index = 0;
+    }
+
+    @Override
+    public void requestUpdateMsg(final Utils.Consumer<String> consumer) {
+        ThreadUtils.executeByCached(new ThreadUtils.SimpleTask<String>() {
+            @Override
+            public String doInBackground() throws Throwable {
+                Thread.sleep(2000);
+                return "msg: " + index++;
+            }
+
+            @Override
+            public void onSuccess(String result) {
+                consumer.accept(result);
+            }
+        });
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpMvp.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpMvp.java
new file mode 100644
index 0000000000..d0335ef203
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpMvp.java
@@ -0,0 +1,28 @@
+package com.blankj.utilcode.pkg.feature.mvp;
+
+import com.blankj.utilcode.util.Utils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/26
+ *     desc  :
+ * </pre>
+ */
+public interface MvpMvp {
+
+    interface View {
+        void setLoadingVisible(boolean visible);
+
+        void showMsg(CharSequence msg);
+    }
+
+    interface Presenter {
+        void updateMsg();
+    }
+
+    interface Model {
+        void requestUpdateMsg(final Utils.Consumer<String> consumer);
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpPresenter.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpPresenter.java
new file mode 100644
index 0000000000..fcb68bd3ed
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpPresenter.java
@@ -0,0 +1,37 @@
+package com.blankj.utilcode.pkg.feature.mvp;
+
+import com.blankj.base.mvp.BasePresenter;
+import com.blankj.utilcode.util.LogUtils;
+import com.blankj.utilcode.util.Utils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/26
+ *     desc  :
+ * </pre>
+ */
+public class MvpPresenter extends BasePresenter<MvpView>
+        implements MvpMvp.Presenter {
+
+    @Override
+    public void onBindView() {
+    }
+
+    @Override
+    public void updateMsg() {
+        getView().setLoadingVisible(true);
+        getModel(MvpModel.class).requestUpdateMsg(new Utils.Consumer<String>() {
+            @Override
+            public void accept(String s) {
+                if (isAlive()) {
+                    getView().showMsg(s);
+                    getView().setLoadingVisible(false);
+                } else {
+                    LogUtils.iTag(MvpView.TAG, "destroyed");
+                }
+            }
+        });
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpView.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpView.java
new file mode 100644
index 0000000000..e916398e48
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/mvp/MvpView.java
@@ -0,0 +1,78 @@
+package com.blankj.utilcode.pkg.feature.mvp;
+
+import android.text.Layout;
+import android.view.View;
+import android.widget.TextView;
+
+import com.blankj.base.mvp.BaseView;
+import com.blankj.utilcode.pkg.R;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.LogUtils;
+import com.blankj.utilcode.util.SizeUtils;
+import com.blankj.utilcode.util.ThreadUtils;
+import com.blankj.utilcode.util.ToastUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/26
+ *     desc  :
+ * </pre>
+ */
+public class MvpView extends BaseView<MvpView>
+        implements MvpMvp.View {
+
+    private TextView mvpTv;
+    private TextView mvpMeasureWidthTv;
+    private int      i = 0;
+
+    public MvpView(MvpActivity activity) {
+        super(activity);
+        mvpTv = activity.findViewById(R.id.mvpUpdateTv);
+        ClickUtils.applyPressedBgDark(mvpTv);
+        mvpTv.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                getPresenter(MvpPresenter.class).updateMsg();
+            }
+        });
+
+        mvpMeasureWidthTv = activity.findViewById(R.id.mvpMeasureWidthTv);
+
+        measure();
+    }
+
+    private void measure() {
+        ThreadUtils.runOnUiThreadDelayed(new Runnable() {
+            @Override
+            public void run() {
+                float textWidth = Layout.getDesiredWidth(mvpMeasureWidthTv.getText(), mvpMeasureWidthTv.getPaint()) + SizeUtils.dp2px(16);
+                float textWidth2 = mvpMeasureWidthTv.getPaint().measureText(mvpMeasureWidthTv.getText().toString()) + SizeUtils.dp2px(16);
+                LogUtils.i(mvpMeasureWidthTv.getWidth(), textWidth, textWidth2);
+                mvpMeasureWidthTv.setText(mvpMeasureWidthTv.getText().toString() + i);
+                measure();
+            }
+        }, 1000);
+    }
+
+    @Override
+    public void setLoadingVisible(boolean visible) {
+        final MvpActivity activity = getActivity();
+        if (visible) {
+            activity.showLoading(new Runnable() {
+                @Override
+                public void run() {
+                    activity.finish();
+                }
+            });
+        } else {
+            activity.dismissLoading();
+        }
+    }
+
+    @Override
+    public void showMsg(CharSequence msg) {
+        ToastUtils.showLong(msg);
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/network/NetworkActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/network/NetworkActivity.kt
new file mode 100644
index 0000000000..452040376d
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/network/NetworkActivity.kt
@@ -0,0 +1,151 @@
+package com.blankj.utilcode.pkg.feature.network
+
+import android.content.Context
+import android.content.Intent
+import android.net.wifi.ScanResult
+import android.net.wifi.WifiManager
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about NetworkUtils
+ * ```
+ */
+class NetworkActivity : CommonActivity(), NetworkUtils.OnNetworkStatusChangedListener {
+
+    companion object {
+        fun start(context: Context) {
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, NetworkActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                }
+            }, PermissionConstants.LOCATION)
+        }
+    }
+
+    private lateinit var itemsTask: ThreadUtils.SimpleTask<List<CommonItem<*>>>
+    private lateinit var wifiScanResultItem: CommonItemTitle
+    private val consumer = Utils.Consumer<NetworkUtils.WifiScanResults> { t ->
+        wifiScanResultItem.setContent(scanResults2String(t.filterResults))
+        wifiScanResultItem.update()
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_network
+    }
+
+    private fun getItemsTask(): ThreadUtils.SimpleTask<List<CommonItem<*>>> {
+        itemsTask = object : ThreadUtils.SimpleTask<List<CommonItem<*>>>() {
+            override fun doInBackground(): List<CommonItem<*>> {
+                return bindItems()
+            }
+
+            override fun onSuccess(result: List<CommonItem<*>>) {
+                dismissLoading()
+                itemsView.updateItems(result)
+            }
+        }
+        return itemsTask
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        if (ThreadUtils.isMainThread()) return arrayListOf()
+        wifiScanResultItem = CommonItemTitle("getWifiScanResult", scanResults2String(NetworkUtils.getWifiScanResult().filterResults))
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("isConnected", NetworkUtils.isConnected().toString()),
+                CommonItemTitle("getMobileDataEnabled", NetworkUtils.getMobileDataEnabled().toString()),
+                CommonItemTitle("isMobileData", NetworkUtils.isMobileData().toString()),
+                CommonItemTitle("is4G", NetworkUtils.is4G().toString()),
+                CommonItemTitle("is5G", NetworkUtils.is5G().toString()),
+                CommonItemTitle("isWifiConnected", NetworkUtils.isWifiConnected().toString()),
+                CommonItemTitle("getNetworkOperatorName", NetworkUtils.getNetworkOperatorName()),
+                CommonItemTitle("getNetworkTypeName", NetworkUtils.getNetworkType().toString()),
+                CommonItemTitle("getBroadcastIpAddress", NetworkUtils.getBroadcastIpAddress()),
+                CommonItemTitle("getIpAddressByWifi", NetworkUtils.getIpAddressByWifi()),
+                CommonItemTitle("getGatewayByWifi", NetworkUtils.getGatewayByWifi()),
+                CommonItemTitle("getNetMaskByWifi", NetworkUtils.getNetMaskByWifi()),
+                CommonItemTitle("getServerAddressByWifi", NetworkUtils.getServerAddressByWifi()),
+                CommonItemTitle("getSSID", NetworkUtils.getSSID()),
+
+                CommonItemTitle("getIPv4Address", NetworkUtils.getIPAddress(true)),
+                CommonItemTitle("getIPv6Address", NetworkUtils.getIPAddress(false)),
+                CommonItemTitle("isWifiAvailable", NetworkUtils.isWifiAvailable().toString()),
+                CommonItemTitle("isAvailable", NetworkUtils.isAvailable().toString()),
+                CommonItemTitle("getBaiduDomainAddress", NetworkUtils.getDomainAddress("baidu.com")),
+                wifiScanResultItem,
+
+                CommonItemSwitch(
+                        R.string.network_wifi_enabled,
+                        {
+                            val wifiEnabled = NetworkUtils.getWifiEnabled()
+                            if (wifiEnabled) {
+                                NetworkUtils.addOnWifiChangedConsumer(consumer)
+                            } else {
+                                NetworkUtils.removeOnWifiChangedConsumer(consumer)
+                            }
+                            wifiEnabled
+                        },
+                        {
+                            NetworkUtils.setWifiEnabled(it)
+                            ThreadUtils.executeByIo(getItemsTask())
+                        }
+                ),
+                CommonItemClick(R.string.network_open_wireless_settings) {
+                    NetworkUtils.openWirelessSettings()
+                }
+        )
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        NetworkUtils.registerNetworkStatusChangedListener(this)
+        updateItems()
+    }
+
+    override fun onDisconnected() {
+        ToastUtils.showLong("onDisconnected")
+        updateItems()
+    }
+
+    override fun onConnected(networkType: NetworkUtils.NetworkType) {
+        ToastUtils.showLong("onConnected: ${networkType.name}")
+        updateItems()
+    }
+
+    private fun updateItems() {
+        showLoading()
+        ThreadUtils.executeByIo(getItemsTask())
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        ThreadUtils.cancel(itemsTask)
+        NetworkUtils.unregisterNetworkStatusChangedListener(this)
+        NetworkUtils.removeOnWifiChangedConsumer(consumer)
+    }
+
+    private fun scanResults2String(results: List<ScanResult>): String {
+        val sb: StringBuilder = StringBuilder()
+        for (result in results) {
+            sb.append(String.format("${result.SSID}, Level: ${WifiManager.calculateSignalLevel(result.level, 4)}\n"))
+        }
+        return sb.toString()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt
new file mode 100644
index 0000000000..d69c30b6cd
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt
@@ -0,0 +1,69 @@
+package com.blankj.utilcode.pkg.feature.notification
+
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.NotificationUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/10/22
+ * desc  : demo about NotificationUtils
+ * ```
+ */
+class NotificationActivity : CommonActivity() {
+
+    private var id: Int = 0
+    private var cancelId: Int = 0
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, NotificationActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_notification
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("areNotificationsEnabled", NotificationUtils.areNotificationsEnabled().toString()),
+                CommonItemClick(R.string.notification_notify) {
+                    NotificationUtils.notify(id++) { param ->
+                        intent.putExtra("id", id);
+                        param.setSmallIcon(R.mipmap.ic_launcher)
+                                .setContentTitle("title")
+                                .setContentText("content text: $id")
+                                .setContentIntent(PendingIntent.getActivity(mActivity, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT))
+                                .setAutoCancel(true)
+                        null
+                    }
+                },
+                CommonItemClick(R.string.notification_cancel) {
+                    if (cancelId < id) {
+                        NotificationUtils.cancel(cancelId++)
+                    } else {
+                        ToastUtils.showShort("No notification.")
+                    }
+                },
+                CommonItemClick(R.string.notification_cancel_all) {
+                    NotificationUtils.cancelAll()
+                    cancelId = id;
+                },
+                CommonItemClick(R.string.notification_show) {
+                    NotificationUtils.setNotificationBarVisibility(true)
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/path/PathActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/path/PathActivity.kt
new file mode 100644
index 0000000000..b5f657286d
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/path/PathActivity.kt
@@ -0,0 +1,76 @@
+package com.blankj.utilcode.pkg.feature.path
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.PathUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about PathUtils
+ * ```
+ */
+class PathActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, PathActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_path
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getRootPath", PathUtils.getRootPath()),
+                CommonItemTitle("getDataPath", PathUtils.getDataPath()),
+                CommonItemTitle("getDownloadCachePath", PathUtils.getDownloadCachePath()),
+
+                CommonItemTitle("getInternalAppDataPath", PathUtils.getInternalAppDataPath()),
+                CommonItemTitle("getInternalAppCodeCacheDir", PathUtils.getInternalAppCodeCacheDir()),
+                CommonItemTitle("getInternalAppCachePath", PathUtils.getInternalAppCachePath()),
+                CommonItemTitle("getInternalAppDbsPath", PathUtils.getInternalAppDbsPath()),
+                CommonItemTitle("getInternalAppDbPath", PathUtils.getInternalAppDbPath("demo")),
+                CommonItemTitle("getInternalAppFilesPath", PathUtils.getInternalAppFilesPath()),
+                CommonItemTitle("getInternalAppSpPath", PathUtils.getInternalAppSpPath()),
+                CommonItemTitle("getInternalAppNoBackupFilesPath", PathUtils.getInternalAppNoBackupFilesPath()),
+
+                CommonItemTitle("getExternalStoragePath", PathUtils.getExternalStoragePath()),
+                CommonItemTitle("getExternalMusicPath", PathUtils.getExternalMusicPath()),
+                CommonItemTitle("getExternalPodcastsPath", PathUtils.getExternalPodcastsPath()),
+                CommonItemTitle("getExternalRingtonesPath", PathUtils.getExternalRingtonesPath()),
+                CommonItemTitle("getExternalAlarmsPath", PathUtils.getExternalAlarmsPath()),
+                CommonItemTitle("getExternalNotificationsPath", PathUtils.getExternalNotificationsPath()),
+                CommonItemTitle("getExternalPicturesPath", PathUtils.getExternalPicturesPath()),
+                CommonItemTitle("getExternalMoviesPath", PathUtils.getExternalMoviesPath()),
+                CommonItemTitle("getExternalDownloadsPath", PathUtils.getExternalDownloadsPath()),
+                CommonItemTitle("getExternalDcimPath", PathUtils.getExternalDcimPath()),
+                CommonItemTitle("getExternalDocumentsPath", PathUtils.getExternalDocumentsPath()),
+
+                CommonItemTitle("getExternalAppDataPath", PathUtils.getExternalAppDataPath()),
+                CommonItemTitle("getExternalAppCachePath", PathUtils.getExternalAppCachePath()),
+                CommonItemTitle("getExternalAppFilesPath", PathUtils.getExternalAppFilesPath()),
+                CommonItemTitle("getExternalAppMusicPath", PathUtils.getExternalAppMusicPath()),
+                CommonItemTitle("getExternalAppPodcastsPath", PathUtils.getExternalAppPodcastsPath()),
+                CommonItemTitle("getExternalAppRingtonesPath", PathUtils.getExternalAppRingtonesPath()),
+                CommonItemTitle("getExternalAppAlarmsPath", PathUtils.getExternalAppAlarmsPath()),
+                CommonItemTitle("getExternalAppNotificationsPath", PathUtils.getExternalAppNotificationsPath()),
+                CommonItemTitle("getExternalAppPicturesPath", PathUtils.getExternalAppPicturesPath()),
+                CommonItemTitle("getExternalAppMoviesPath", PathUtils.getExternalAppMoviesPath()),
+                CommonItemTitle("getExternalAppDownloadPath", PathUtils.getExternalAppDownloadPath()),
+                CommonItemTitle("getExternalAppDcimPath", PathUtils.getExternalAppDcimPath()),
+                CommonItemTitle("getExternalAppDocumentsPath", PathUtils.getExternalAppDocumentsPath()),
+                CommonItemTitle("getExternalAppObbPath", PathUtils.getExternalAppObbPath())
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/permission/PermissionActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/permission/PermissionActivity.kt
new file mode 100644
index 0000000000..c55d9c945b
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/permission/PermissionActivity.kt
@@ -0,0 +1,200 @@
+package com.blankj.utilcode.pkg.feature.permission
+
+import android.Manifest.permission
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/01/01
+ * desc  : demo about PermissionUtils
+ * ```
+ */
+class PermissionActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, PermissionActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private val permissions: String
+
+    init {
+        val permissionList = PermissionUtils.getPermissions()
+        if (permissionList.isEmpty()) {
+            permissions = ""
+        } else {
+            val sb = StringBuilder()
+            for (permission in permissionList) {
+                sb.append("\n").append(permission.substring(permission.lastIndexOf('.') + 1))
+            }
+            permissions = sb.deleteCharAt(0).toString()
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_permission
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList<CommonItem<*>>().apply {
+            add(CommonItemTitle("Permissions", permissions))
+            add(CommonItemClick(R.string.permission_open_app_settings, true) { PermissionUtils.launchAppDetailsSettings() })
+            add(CommonItemSwitch(
+                    R.string.permission_calendar_status,
+                    { PermissionUtils.isGranted(PermissionConstants.CALENDAR) },
+                    { requestCalendar() }
+            ))
+            add(CommonItemSwitch(
+                    R.string.permission_record_audio_status,
+                    { PermissionUtils.isGranted(PermissionConstants.MICROPHONE) },
+                    { requestRecordAudio() }
+            ))
+            add(CommonItemSwitch(
+                    R.string.permission_calendar_and_record_audio_status,
+                    { PermissionUtils.isGranted(PermissionConstants.CALENDAR, PermissionConstants.MICROPHONE) },
+                    { requestCalendarAndRecordAudio() }
+            ))
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                add(CommonItemSwitch(
+                        R.string.permission_write_settings_status,
+                        { PermissionUtils.isGrantedWriteSettings() },
+                        { requestWriteSettings() }
+                ))
+                add(CommonItemSwitch(
+                        R.string.permission_write_settings_status,
+                        { PermissionUtils.isGrantedDrawOverlays() },
+                        { requestDrawOverlays() }
+                ))
+            }
+        }
+    }
+
+    private fun requestCalendar() {
+        PermissionUtils.permissionGroup(PermissionConstants.CALENDAR)
+                .rationale { activity, shouldRequest -> PermissionHelper.showRationaleDialog(activity, shouldRequest) }
+                .callback(object : PermissionUtils.FullCallback {
+                    override fun onGranted(permissionsGranted: List<String>) {
+                        LogUtils.d(permissionsGranted)
+                        showSnackbar(true, "Calendar is granted")
+                        itemsView.updateItems(bindItems())
+                    }
+
+                    override fun onDenied(permissionsDeniedForever: List<String>,
+                                          permissionsDenied: List<String>) {
+                        LogUtils.d(permissionsDeniedForever, permissionsDenied)
+                        if (permissionsDeniedForever.isNotEmpty()) {
+                            showSnackbar(false, "Calendar is denied forever")
+                        } else {
+                            showSnackbar(false, "Calendar is denied")
+                        }
+                        itemsView.updateItems(bindItems())
+                    }
+                })
+                .theme { activity -> ScreenUtils.setFullScreen(activity) }
+                .request()
+    }
+
+    private fun requestRecordAudio() {
+        PermissionUtils.permissionGroup(PermissionConstants.MICROPHONE)
+                .rationale { activity, shouldRequest -> PermissionHelper.showRationaleDialog(activity, shouldRequest) }
+                .callback(object : PermissionUtils.FullCallback {
+                    override fun onGranted(permissionsGranted: List<String>) {
+                        LogUtils.d(permissionsGranted)
+                        showSnackbar(true, "Microphone is granted")
+                        itemsView.updateItems(bindItems())
+                    }
+
+                    override fun onDenied(permissionsDeniedForever: List<String>,
+                                          permissionsDenied: List<String>) {
+                        LogUtils.d(permissionsDeniedForever, permissionsDenied)
+                        if (permissionsDeniedForever.isNotEmpty()) {
+                            showSnackbar(false, "Microphone is denied forever")
+                        } else {
+                            showSnackbar(false, "Microphone is denied")
+                        }
+                        itemsView.updateItems(bindItems())
+                    }
+                })
+                .request()
+    }
+
+    private fun requestCalendarAndRecordAudio() {
+        PermissionUtils.permission(permission.READ_CALENDAR, permission.RECORD_AUDIO)
+                .explain { activity, denied, shouldRequest -> PermissionHelper.showExplainDialog(activity, denied, shouldRequest) }
+                .callback { isAllGranted, granted, deniedForever, denied ->
+                    LogUtils.d(granted, deniedForever, denied)
+                    itemsView.updateItems(bindItems())
+                    if (isAllGranted) {
+                        showSnackbar(true, "Calendar and Microphone are granted")
+                        return@callback
+                    }
+                    if (deniedForever.isNotEmpty()) {
+                        showSnackbar(false, "Calendar or Microphone is denied forever")
+                    } else {
+                        showSnackbar(false, "Calendar or Microphone is denied")
+                    }
+                }
+                .request()
+    }
+
+    private fun requestWriteSettings() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            PermissionUtils.requestWriteSettings(object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    showSnackbar(true, "Write Settings is granted")
+                    itemsView.updateItems(bindItems())
+                }
+
+                override fun onDenied() {
+                    showSnackbar(false, "Write Settings is denied")
+                    itemsView.updateItems(bindItems())
+                }
+            })
+        }
+    }
+
+    private fun requestDrawOverlays() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            PermissionUtils.requestDrawOverlays(object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    showSnackbar(true, "Draw Overlays is granted")
+                    itemsView.updateItems(bindItems())
+                }
+
+                override fun onDenied() {
+                    showSnackbar(false, "Draw Overlays is denied")
+                    itemsView.updateItems(bindItems())
+                }
+            })
+        }
+    }
+
+
+    private fun showSnackbar(isSuccess: Boolean, msg: String) {
+        SnackbarUtils.with(mContentView)
+                .setDuration(SnackbarUtils.LENGTH_LONG)
+                .setMessage(msg)
+                .apply {
+                    if (isSuccess) {
+                        showSuccess()
+                    } else {
+                        showError()
+                    }
+                }
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/phone/PhoneActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/phone/PhoneActivity.kt
new file mode 100644
index 0000000000..c9b748cdfa
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/phone/PhoneActivity.kt
@@ -0,0 +1,62 @@
+package com.blankj.utilcode.pkg.feature.phone
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.helper.PermissionHelper
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.PermissionUtils
+import com.blankj.utilcode.util.PhoneUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about PhoneUtils
+ * ```
+ */
+class PhoneActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            PermissionHelper.request(context, object : PermissionUtils.SimpleCallback {
+                override fun onGranted() {
+                    val starter = Intent(context, PhoneActivity::class.java)
+                    context.startActivity(starter)
+                }
+
+                override fun onDenied() {
+                }
+            }, PermissionConstants.PHONE)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_phone
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("isPhone", PhoneUtils.isPhone().toString()),
+                CommonItemTitle("getDeviceId", PhoneUtils.getDeviceId()),
+                CommonItemTitle("getSerial", PhoneUtils.getSerial()),
+                CommonItemTitle("getIMEI", PhoneUtils.getIMEI()),
+                CommonItemTitle("getMEID", PhoneUtils.getMEID()),
+                CommonItemTitle("getIMSI", PhoneUtils.getIMSI()),
+                CommonItemTitle("getPhoneType", PhoneUtils.getPhoneType().toString()),
+                CommonItemTitle("isSimCardReady", PhoneUtils.isSimCardReady().toString()),
+                CommonItemTitle("getSimOperatorName", PhoneUtils.getSimOperatorName()),
+                CommonItemTitle("getSimOperatorByMnc", PhoneUtils.getSimOperatorByMnc()),
+
+                CommonItemClick(R.string.phone_dial) { PhoneUtils.dial("*10000#haha") },
+                CommonItemClick(R.string.phone_call) { PhoneUtils.call("*10000#haha") },
+                CommonItemClick(R.string.phone_send_sms) { PhoneUtils.sendSms("10000", "sendSms") }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/process/ProcessActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/process/ProcessActivity.kt
new file mode 100644
index 0000000000..7753d2f47a
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/process/ProcessActivity.kt
@@ -0,0 +1,67 @@
+package com.blankj.utilcode.pkg.feature.process
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ProcessUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/13
+ * desc  : demo about ProcessUtils
+ * ```
+ */
+class ProcessActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ProcessActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_process
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        val set = ProcessUtils.getAllBackgroundProcesses()
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getForegroundProcessName", ProcessUtils.getForegroundProcessName()!!),
+                CommonItemTitle("getAllBackgroundProcesses -> ${set.size}", getSetItems(set)),
+                CommonItemTitle("isMainProcess", ProcessUtils.isMainProcess().toString()),
+                CommonItemTitle("getCurrentProcessName", ProcessUtils.getCurrentProcessName()),
+
+                CommonItemClick(R.string.process_kill_all_background).setOnItemClickListener { _, item, _ ->
+                    val bgSet = ProcessUtils.getAllBackgroundProcesses()
+                    val killedSet = ProcessUtils.killAllBackgroundProcesses()
+                    itemsView.updateItems(
+                            CollectionUtils.newArrayList(
+                                    CommonItemTitle("getForegroundProcessName", ProcessUtils.getForegroundProcessName()),
+                                    CommonItemTitle("getAllBackgroundProcesses -> ${bgSet.size}", getSetItems(bgSet)),
+                                    CommonItemTitle("killAllBackgroundProcesses -> ${killedSet.size}", getSetItems(killedSet)),
+                                    CommonItemTitle("isMainProcess", ProcessUtils.isMainProcess().toString()),
+                                    CommonItemTitle("getCurrentProcessName", ProcessUtils.getCurrentProcessName()),
+                                    item
+                            )
+                    )
+                }
+        )
+    }
+
+    private fun getSetItems(set: Set<String>): String {
+        val iterator = set.iterator()
+        val sb = StringBuilder()
+        while (iterator.hasNext()) {
+            sb.append("\n").append(iterator.next())
+        }
+        return if (sb.isNotEmpty()) sb.deleteCharAt(0).toString() else ""
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/reflect/ReflectActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/reflect/ReflectActivity.kt
new file mode 100644
index 0000000000..f445acf642
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/reflect/ReflectActivity.kt
@@ -0,0 +1,41 @@
+package com.blankj.utilcode.pkg.feature.reflect
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ReflectUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/01/29
+ * desc  : demo about ReflectUtils
+ * ```
+ */
+class ReflectActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ReflectActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_reflect
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("source value", TestPrivateStaticFinal.STR),
+                CommonItemTitle("reflect get", ReflectUtils.reflect(TestPrivateStaticFinal::class.java).field("STR").get<String>()),
+                CommonItemTitle("after reflect get", ReflectUtils.reflect(TestPrivateStaticFinal::class.java).field("STR", "reflect success").field("STR").get<String>()),
+                CommonItemTitle("source value", TestPrivateStaticFinal.STR)
+        )
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/reflect/TestPrivateStaticFinal.java b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/reflect/TestPrivateStaticFinal.java
new file mode 100644
index 0000000000..b7efb5f4d7
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/reflect/TestPrivateStaticFinal.java
@@ -0,0 +1,16 @@
+package com.blankj.utilcode.pkg.feature.reflect;
+
+import androidx.annotation.Keep;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/09
+ *     desc  :
+ * </pre>
+ */
+@Keep
+public class TestPrivateStaticFinal {
+    public static final String STR = "str";
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/resource/ResourceActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/resource/ResourceActivity.kt
new file mode 100644
index 0000000000..cf56301068
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/resource/ResourceActivity.kt
@@ -0,0 +1,49 @@
+package com.blankj.utilcode.pkg.feature.resource
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.Config
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ResourceUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/05/07
+ * desc  : demo about ResourceUtils
+ * ```
+ */
+class ResourceActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ResourceActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_resource
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("readAssets2String", ResourceUtils.readAssets2String("test/test.txt")),
+                CommonItemTitle("readAssets2List", ResourceUtils.readAssets2List("test/test.txt").toString()),
+                CommonItemTitle("readRaw2List", ResourceUtils.readRaw2List(R.raw.test).toString()),
+
+                CommonItemClick(R.string.resource_copy_file_from_assets_2_cache) {
+                    ResourceUtils.copyFileFromAssets("test", Config.CACHE_PATH + "assets/test")
+                },
+                CommonItemClick(R.string.resource_copy_file_from_raw_2_cache) {
+                    ResourceUtils.copyFileFromRaw(R.raw.test, Config.CACHE_PATH + "raw/test.txt")
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/rom/RomActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/rom/RomActivity.kt
new file mode 100644
index 0000000000..e2b4a3c7bc
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/rom/RomActivity.kt
@@ -0,0 +1,40 @@
+package com.blankj.utilcode.pkg.feature.rom
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.RomUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/01/29
+ * desc  : demo about RomUtils
+ * ```
+ */
+class RomActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, RomActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_rom
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        val romInfo = RomUtils.getRomInfo()
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("Rom Name", romInfo.name),
+                CommonItemTitle("Rom Version", romInfo.version)
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/screen/ScreenActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/screen/ScreenActivity.kt
new file mode 100644
index 0000000000..88286c4df5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/screen/ScreenActivity.kt
@@ -0,0 +1,101 @@
+package com.blankj.utilcode.pkg.feature.screen
+
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.widget.ImageView
+import android.widget.TextView
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemSwitch
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.helper.DialogHelper
+import com.blankj.utilcode.util.*
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/01/29
+ * desc  : demo about RomUtils
+ * ```
+ */
+class ScreenActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                PermissionUtils.requestWriteSettings(object : PermissionUtils.SimpleCallback {
+                    override fun onGranted() {
+                        val starter = Intent(context, ScreenActivity::class.java)
+                        context.startActivity(starter)
+                    }
+
+                    override fun onDenied() {
+                        ToastUtils.showLong("No permission of write settings.")
+                    }
+                })
+            } else {
+                val starter = Intent(context, ScreenActivity::class.java)
+                context.startActivity(starter)
+            }
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_screen
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("getScreenWidth", ScreenUtils.getScreenWidth().toString()),
+                CommonItemTitle("getScreenHeight", ScreenUtils.getScreenHeight().toString()),
+                CommonItemTitle("getAppScreenWidth", ScreenUtils.getAppScreenWidth().toString()),
+                CommonItemTitle("getAppScreenHeight", ScreenUtils.getAppScreenHeight().toString()),
+                CommonItemTitle("getScreenDensity", ScreenUtils.getScreenDensity().toString()),
+                CommonItemTitle("getScreenDensityDpi", ScreenUtils.getScreenDensityDpi().toString()),
+                CommonItemTitle("getScreenRotation", ScreenUtils.getScreenRotation(this).toString()),
+                CommonItemTitle("isScreenLock", ScreenUtils.isScreenLock().toString()),
+                CommonItemTitle("getSleepDuration", ScreenUtils.getSleepDuration().toString()),
+
+                CommonItemSwitch(
+                        "isFullScreen",
+                        { ScreenUtils.isFullScreen(this) },
+                        {
+                            if (it) {
+                                ScreenUtils.setFullScreen(this)
+                                BarUtils.setStatusBarVisibility(this, false)
+                            } else {
+                                ScreenUtils.setNonFullScreen(this)
+                                BarUtils.setStatusBarVisibility(this, true)
+                            }
+                        }
+                ),
+                CommonItemSwitch(
+                        "isLandscape",
+                        { ScreenUtils.isLandscape() },
+                        {
+                            if (it) {
+                                ScreenUtils.setLandscape(this)
+                            } else {
+                                ScreenUtils.setPortrait(this)
+                            }
+                        }
+                ),
+                CommonItemClick(R.string.screen_screenshot) {
+                    val iv :ImageView = ImageView(this)
+                    iv.setImageResource(R.mipmap.ic_launcher)
+
+                    val tv: TextView = TextView(this)
+                    tv.setText("wowowowwowo")
+
+                    DialogHelper.showScreenshotDialog(ImageUtils.view2Bitmap(tv))
+
+//                    DialogHelper.showScreenshotDialog(ScreenUtils.screenShot(this))
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/sdcard/SDCardActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/sdcard/SDCardActivity.kt
new file mode 100644
index 0000000000..0c51475952
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/sdcard/SDCardActivity.kt
@@ -0,0 +1,46 @@
+package com.blankj.utilcode.pkg.feature.sdcard
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ConvertUtils
+import com.blankj.utilcode.util.SDCardUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/27
+ * desc  : demo about SDCardUtils
+ * ```
+ */
+class SDCardActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, SDCardActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_sdcard
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemTitle("isSDCardEnableByEnvironment", SDCardUtils.isSDCardEnableByEnvironment().toString()),
+                CommonItemTitle("getSDCardPathByEnvironment", SDCardUtils.getSDCardPathByEnvironment()),
+                CommonItemTitle("getSDCardInfo", SDCardUtils.getSDCardInfo().toString()),
+                CommonItemTitle("getMountedSDCardPath", SDCardUtils.getMountedSDCardPath().toString()),
+                CommonItemTitle("getExternalTotalSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getExternalTotalSize(), 2)),
+                CommonItemTitle("getExternalAvailableSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getExternalAvailableSize(), 2)),
+                CommonItemTitle("getInternalTotalSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getInternalTotalSize(), 2)),
+                CommonItemTitle("getInternalAvailableSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getInternalAvailableSize(), 2))
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/shadow/ShadowActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/shadow/ShadowActivity.kt
new file mode 100644
index 0000000000..2ec21ad483
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/shadow/ShadowActivity.kt
@@ -0,0 +1,52 @@
+package com.blankj.utilcode.pkg.feature.shadow
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.ShadowUtils
+import com.blankj.utilcode.util.ShadowUtils.Config
+import com.blankj.utilcode.util.SizeUtils
+import kotlinx.android.synthetic.main.shadow_activity.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2019/10/22
+ * desc  : demo about ShadowUtils
+ * ```
+ */
+class ShadowActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ShadowActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_shadow
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.shadow_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        ShadowUtils.apply(shadowRectView, Config().setShadowColor(0x44000000, 0x55000000))
+        ShadowUtils.apply(shadowRoundRectView, Config().setShadowColor(0x44000000, 0x55000000).setShadowRadius(
+                SizeUtils.dp2px(16f).toFloat()))
+        ShadowUtils.apply(shadowCircleView, Config().setCircle().setShadowColor(0x44000000, 0x55000000))
+
+        ShadowUtils.apply(shadowRectView1, Config().setShadowColor(0x44000000, 0x55000000))
+        ShadowUtils.apply(shadowRoundRectView1, Config().setShadowColor(0x44000000, 0x55000000).setShadowRadius(
+                SizeUtils.dp2px(16f).toFloat()))
+        ShadowUtils.apply(shadowCircleView1, Config().setCircle().setShadowColor(0x44000000, 0x55000000))
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/snackbar/SnackbarActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/snackbar/SnackbarActivity.kt
new file mode 100644
index 0000000000..dcde367a5b
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/snackbar/SnackbarActivity.kt
@@ -0,0 +1,159 @@
+package com.blankj.utilcode.pkg.feature.snackbar
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.text.SpannableStringBuilder
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.annotation.StringRes
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.SnackbarUtils
+import com.blankj.utilcode.util.SpanUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/10/17
+ * desc  : demo about SnackbarUtils
+ * ```
+ */
+class SnackbarActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, SnackbarActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_snackbar
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.snackbar_short) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_short))
+                            .setMessageColor(Color.WHITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .show()
+                },
+                CommonItemClick(R.string.snackbar_short_top) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_short_top))
+                            .setMessageColor(Color.WHITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .show(true)
+                },
+                CommonItemClick(R.string.snackbar_short_with_action) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_short_with_action))
+                            .setMessageColor(Color.WHITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .setAction(getString(R.string.snackbar_click), Color.YELLOW) { ToastUtils.showShort(getString(R.string.snackbar_click)) }
+                            .show()
+                },
+                CommonItemClick(R.string.snackbar_short_with_action_top) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_short_with_action_top))
+                            .setMessageColor(Color.WHITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .setAction(getString(R.string.snackbar_click), Color.YELLOW) { ToastUtils.showShort(getString(R.string.snackbar_click)) }
+                            .show(true)
+                },
+                CommonItemClick(R.string.snackbar_long) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_long))
+                            .setMessageColor(Color.WHITE)
+                            .setDuration(SnackbarUtils.LENGTH_LONG)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .show()
+                },
+                CommonItemClick(R.string.snackbar_long_with_action) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_long_with_action))
+                            .setMessageColor(Color.WHITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .setDuration(SnackbarUtils.LENGTH_LONG)
+                            .setAction(getString(R.string.snackbar_click), Color.YELLOW) { ToastUtils.showShort(getString(R.string.snackbar_click)) }
+                            .show()
+                },
+                CommonItemClick(R.string.snackbar_indefinite) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_indefinite))
+                            .setMessageColor(Color.WHITE)
+                            .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .show()
+                },
+                CommonItemClick(R.string.snackbar_indefinite_with_action) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_indefinite_with_action))
+                            .setMessageColor(Color.WHITE)
+                            .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
+                            .setBgResource(R.drawable.snackbar_custom_bg)
+                            .setAction(getString(R.string.snackbar_click), Color.YELLOW) { ToastUtils.showShort(getString(R.string.snackbar_click)) }
+                            .show()
+                },
+                CommonItemClick(R.string.snackbar_add_view) {
+                    val params = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
+                    SnackbarUtils.with(mContentView)
+                            .setBgColor(Color.TRANSPARENT)
+                            .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
+                            .show()
+                    SnackbarUtils.addView(R.layout.snackbar_custom, params)
+                },
+                CommonItemClick(R.string.snackbar_add_view_with_action) {
+                    val params: ViewGroup.LayoutParams = ViewGroup.LayoutParams(
+                            ViewGroup.LayoutParams.MATCH_PARENT,
+                            ViewGroup.LayoutParams.MATCH_PARENT
+                    )
+                    SnackbarUtils.with(mContentView)
+                            .setBgColor(Color.TRANSPARENT)
+                            .setDuration(SnackbarUtils.LENGTH_INDEFINITE)
+                            .show()
+                    SnackbarUtils.addView(R.layout.snackbar_custom, params)
+                    val snackbarView = SnackbarUtils.getView()
+                    if (snackbarView != null) {
+                        val tvSnackbarCustom = snackbarView.findViewById<TextView>(R.id.snackbarCustomTv)
+                        tvSnackbarCustom.setText(R.string.snackbar_click_to_dismiss)
+                        snackbarView.setOnClickListener { SnackbarUtils.dismiss() }
+                    }
+                },
+                CommonItemClick(R.string.snackbar_success) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_success))
+                            .showSuccess()
+                },
+                CommonItemClick(R.string.snackbar_warning) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_warning))
+                            .showWarning()
+                },
+                CommonItemClick(R.string.snackbar_error) {
+                    SnackbarUtils.with(mContentView)
+                            .setMessage(getMsg(R.string.snackbar_error))
+                            .showError()
+                },
+                CommonItemClick(R.string.snackbar_dismiss) {
+                    SnackbarUtils.dismiss()
+                }
+        )
+    }
+
+    private fun getMsg(@StringRes resId: Int): SpannableStringBuilder {
+        return SpanUtils()
+                .appendImage(R.mipmap.ic_launcher, SpanUtils.ALIGN_CENTER)
+                .appendSpace(32)
+                .append(getString(resId)).setFontSize(24, true)
+                .create()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/spStatic/SPStaticActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/spStatic/SPStaticActivity.kt
new file mode 100644
index 0000000000..f0e6abf871
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/spStatic/SPStaticActivity.kt
@@ -0,0 +1,82 @@
+package com.blankj.utilcode.pkg.feature.spStatic
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.SPStaticUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/01/08
+ * desc  : demo about SPUtils
+ * ```
+ */
+class SPStaticActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, SPStaticActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_spStatic
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        val itemTitle = CommonItemTitle(sp2String(), true)
+        return CollectionUtils.newArrayList(
+                itemTitle,
+                CommonItemClick(R.string.sp_put_string) {
+                    SPStaticUtils.put("STRING", "string")
+                    itemTitle.title = sp2String()
+                },
+                CommonItemClick(R.string.sp_put_int) {
+                    SPStaticUtils.put("INT", 21)
+                    itemTitle.title = sp2String()
+                },
+                CommonItemClick(R.string.sp_put_long) {
+                    SPStaticUtils.put("LONG", java.lang.Long.MAX_VALUE)
+                    itemTitle.title = sp2String()
+                },
+                CommonItemClick(R.string.sp_put_float) {
+                    SPStaticUtils.put("FLOAT", Math.PI.toFloat())
+                    itemTitle.title = sp2String()
+                },
+                CommonItemClick(R.string.sp_put_boolean) {
+                    SPStaticUtils.put("BOOLEAN", true)
+                    itemTitle.title = sp2String()
+                },
+                CommonItemClick(R.string.sp_put_string_set) {
+                    SPStaticUtils.put("SET", setOf("1", "2"))
+                    itemTitle.title = sp2String()
+                },
+                CommonItemClick(R.string.sp_clear) {
+                    SPStaticUtils.clear()
+                    itemTitle.title = sp2String()
+                }
+        )
+    }
+
+    private fun sp2String(): String {
+        val sb = StringBuilder()
+        val map = SPStaticUtils.getAll()
+        if (map.isEmpty()) return ""
+        for ((key, value) in map) {
+            sb.append("\n")
+                    .append(key)
+                    .append(": ")
+                    .append(value)
+
+        }
+        return sb.deleteCharAt(0).toString()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/span/SpanActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/span/SpanActivity.kt
new file mode 100644
index 0000000000..84c9f868bb
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/span/SpanActivity.kt
@@ -0,0 +1,285 @@
+package com.blankj.utilcode.pkg.feature.span
+
+import android.animation.ValueAnimator
+import android.content.Context
+import android.content.Intent
+import android.graphics.*
+import android.os.Bundle
+import android.text.Layout
+import android.text.SpannableStringBuilder
+import android.text.TextPaint
+import android.text.style.CharacterStyle
+import android.text.style.ClickableSpan
+import android.text.style.UpdateAppearance
+import android.view.View
+import android.view.animation.LinearInterpolator
+import androidx.annotation.ColorInt
+import com.blankj.common.activity.CommonActivity
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.SpanUtils
+import com.blankj.utilcode.util.ToastUtils
+import kotlinx.android.synthetic.main.span_activity.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/27
+ * desc  : demo about SpanUtils
+ * ```
+ */
+class SpanActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, SpanActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    private lateinit var mSpanUtils: SpanUtils
+    private lateinit var animSsb: SpannableStringBuilder
+
+    private var lineHeight: Int = 0
+    private var textSize: Float = 0f
+    private lateinit var valueAnimator: ValueAnimator
+    private lateinit var mShader: Shader
+    private var mShaderWidth: Float = 0f
+    private lateinit var matrix: Matrix
+    private lateinit var mBlurMaskFilterSpan: BlurMaskFilterSpan
+    private lateinit var mShadowSpan: ShadowSpan
+    private lateinit var mForegroundAlphaColorSpan: ForegroundAlphaColorSpan
+    private lateinit var mForegroundAlphaColorSpanGroup: ForegroundAlphaColorSpanGroup
+    private lateinit var mPrinterString: String
+    private var density: Float = 0f
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_span
+    }
+
+    override fun bindLayout(): Int {
+        return R.layout.span_activity
+    }
+
+    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
+        super.initView(savedInstanceState, contentView)
+        val clickableSpan = object : ClickableSpan() {
+            override fun onClick(widget: View) {
+                ToastUtils.showShort("事件触发了")
+            }
+
+            override fun updateDrawState(ds: TextPaint) {
+                ds.color = Color.BLUE
+                ds.isUnderlineText = false
+            }
+        }
+
+        lineHeight = spanAboutTv.lineHeight
+        textSize = spanAboutTv.textSize
+        density = resources.displayMetrics.density
+
+        SpanUtils.with(spanAboutTv)
+                .appendLine("SpanUtils").setBackgroundColor(Color.LTGRAY).setBold().setForegroundColor(Color.YELLOW).setHorizontalAlign(Layout.Alignment.ALIGN_CENTER)
+                .appendLine("前景色").setForegroundColor(Color.GREEN)
+//                .appendLine("测试哈哈").setForegroundColor(Color.RED).setBackgroundColor(Color.LTGRAY).setFontSize(10).setLineHeight(280, SpanUtils.ALIGN_BOTTOM)
+                .appendLine("背景色").setBackgroundColor(Color.LTGRAY)
+                .appendLine("行高居中对齐").setLineHeight(2 * lineHeight, SpanUtils.ALIGN_CENTER).setBackgroundColor(Color.LTGRAY)
+                .appendLine("行高底部对齐").setLineHeight(2 * lineHeight, SpanUtils.ALIGN_BOTTOM).setBackgroundColor(Color.GREEN)
+                .appendLine("测试段落缩，首行缩进两字，其他行不缩进").setLeadingMargin(textSize.toInt() * 2, 10).setBackgroundColor(Color.GREEN)
+                .appendLine("测试引用，后面的字是为了凑到两行的效果").setQuoteColor(Color.GREEN, 10, 10).setBackgroundColor(Color.LTGRAY)
+                .appendLine("测试列表项，后面的字是为了凑到两行的效果").setBullet(Color.GREEN, 20, 10).setBackgroundColor(Color.LTGRAY).setBackgroundColor(Color.GREEN)
+                .appendLine("32dp 字体").setFontSize(32, true)
+                .appendLine("2 倍字体").setFontProportion(2f)
+                .appendLine("横向 2 倍字体").setFontXProportion(1.5f)
+                .appendLine("删除线").setStrikethrough()
+                .appendLine("下划线").setUnderline()
+                .append("测试").appendLine("上标").setSuperscript()
+                .append("测试").appendLine("下标").setSubscript()
+                .appendLine("粗体").setBold()
+                .appendLine("斜体").setItalic()
+                .appendLine("粗斜体").setBoldItalic()
+                .appendLine("monospace 字体").setFontFamily("monospace")
+                .appendLine("自定义字体").setTypeface(Typeface.createFromAsset(assets, "fonts/dnmbhs.ttf"))
+                .appendLine("相反对齐").setHorizontalAlign(Layout.Alignment.ALIGN_OPPOSITE)
+                .appendLine("居中对齐").setHorizontalAlign(Layout.Alignment.ALIGN_CENTER)
+                .appendLine("正常对齐").setHorizontalAlign(Layout.Alignment.ALIGN_NORMAL)
+                .append("测试").appendLine("点击事件").setClickSpan(clickableSpan)
+                .append("测试").appendLine("Url").setUrl("https://github.com/Blankj/AndroidUtilCode")
+                .append("测试").appendLine("模糊").setBlur(3f, BlurMaskFilter.Blur.NORMAL)
+                .appendLine("颜色渐变").setShader(LinearGradient(0f, 0f, 64f * density * 4f, 0f, resources.getIntArray(R.array.rainbow), null, Shader.TileMode.REPEAT)).setFontSize(64, true)
+                .appendLine("图片着色").setFontSize(64, true).setShader(BitmapShader(BitmapFactory.decodeResource(resources, R.drawable.span_cheetah), Shader.TileMode.REPEAT, Shader.TileMode.REPEAT))
+                .appendLine("阴影效果").setFontSize(64, true).setBackgroundColor(Color.BLACK).setShadow(24f, 8f, 8f, Color.WHITE)
+
+                .append("小图").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_low, SpanUtils.ALIGN_TOP)
+                .append("顶部").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_low, SpanUtils.ALIGN_CENTER)
+                .append("居中").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_low, SpanUtils.ALIGN_BASELINE)
+                .append("底部").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_low, SpanUtils.ALIGN_BOTTOM)
+                .appendLine("对齐").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_TOP)
+                .append("大图").setBackgroundColor(Color.LTGRAY)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_TOP)
+                .append("顶部").setBackgroundColor(Color.LTGRAY)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_TOP)
+                .appendLine("对齐").setBackgroundColor(Color.LTGRAY)
+
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_CENTER)
+                .append("大图").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_CENTER)
+                .append("居中").setBackgroundColor(Color.GREEN)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_CENTER)
+                .appendLine("对齐").setBackgroundColor(Color.GREEN)
+
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_BOTTOM)
+                .append("大图").setBackgroundColor(Color.LTGRAY)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_BOTTOM)
+                .append("底部").setBackgroundColor(Color.LTGRAY)
+                .appendImage(R.drawable.span_block_high, SpanUtils.ALIGN_BOTTOM)
+                .appendLine("对齐").setBackgroundColor(Color.LTGRAY)
+
+                .append("测试空格").appendSpace(30, Color.LTGRAY).appendSpace(50, Color.GREEN).appendSpace(100).appendSpace(30, Color.LTGRAY).appendSpace(50, Color.GREEN)
+                .create()
+
+        //        initAnimSpan();
+        //        startAnim();
+    }
+
+    private fun initAnimSpan() {
+        mShaderWidth = 64f * density * 4f
+        mShader = LinearGradient(0f, 0f,
+                mShaderWidth, 0f,
+                resources.getIntArray(R.array.rainbow), null,
+                Shader.TileMode.REPEAT)
+        matrix = Matrix()
+
+        mBlurMaskFilterSpan = BlurMaskFilterSpan(25f)
+
+        mShadowSpan = ShadowSpan(8f, 8f, 8f, Color.WHITE)
+
+        mForegroundAlphaColorSpan = ForegroundAlphaColorSpan(Color.TRANSPARENT)
+
+        mForegroundAlphaColorSpanGroup = ForegroundAlphaColorSpanGroup(0f)
+
+        mPrinterString = "打印动画，后面的文字是为了测试打印效果..."
+
+        mSpanUtils = SpanUtils()
+                .appendLine("彩虹动画").setFontSize(64, true).setShader(mShader)
+                .appendLine("模糊动画").setFontSize(64, true).setSpans(mBlurMaskFilterSpan)
+                .appendLine("阴影动画").setFontSize(64, true).setBackgroundColor(Color.BLACK).setSpans(mShadowSpan)
+                .appendLine("透明动画").setFontSize(64, true).setSpans(mForegroundAlphaColorSpan)
+        var i = 0
+        val len = mPrinterString.length
+        while (i < len) {
+            val span = ForegroundAlphaColorSpan(Color.TRANSPARENT)
+            mSpanUtils.append(mPrinterString.substring(i, i + 1)).setSpans(span)
+            mForegroundAlphaColorSpanGroup.addSpan(span)
+            ++i
+        }
+        animSsb = mSpanUtils.create()
+    }
+
+    private fun startAnim() {
+        valueAnimator = ValueAnimator.ofFloat(0f, 1f)
+        valueAnimator.addUpdateListener { animation ->
+            // shader
+            matrix.reset()
+            matrix.setTranslate(animation.animatedValue as Float * mShaderWidth, 0f)
+            mShader.setLocalMatrix(matrix)
+
+            // blur
+            mBlurMaskFilterSpan.radius = 25 * (1.00001f - animation.animatedValue as Float)
+
+            // shadow
+            mShadowSpan.dx = 16 * (0.5f - animation.animatedValue as Float)
+            mShadowSpan.dy = 16 * (0.5f - animation.animatedValue as Float)
+
+            // alpha
+            mForegroundAlphaColorSpan.setAlpha((255 * animation.animatedValue as Float).toInt())
+
+            // printer
+            mForegroundAlphaColorSpanGroup.alpha = animation.animatedValue as Float
+
+            // showMsg
+            spanAboutAnimTv.text = animSsb
+        }
+
+        valueAnimator.interpolator = LinearInterpolator()
+        valueAnimator.duration = (600 * 3).toLong()
+        valueAnimator.repeatCount = ValueAnimator.INFINITE
+        valueAnimator.start()
+    }
+
+    override fun doBusiness() {}
+
+    override fun onDebouncingClick(view: View) {}
+
+//    override fun onDestroy() {
+//        if (valueAnimator.isRunning) {
+//            valueAnimator.cancel()
+//        }
+//        super.onDestroy()
+//    }
+}
+
+class BlurMaskFilterSpan(private var mRadius: Float) : CharacterStyle(), UpdateAppearance {
+    private var mFilter: MaskFilter? = null
+
+    var radius: Float
+        get() = mRadius
+        set(radius) {
+            mRadius = radius
+            mFilter = BlurMaskFilter(mRadius, BlurMaskFilter.Blur.NORMAL)
+        }
+
+    override fun updateDrawState(ds: TextPaint) {
+        ds.maskFilter = mFilter
+    }
+}
+
+class ForegroundAlphaColorSpan(@param:ColorInt private var mColor: Int) : CharacterStyle(), UpdateAppearance {
+
+    fun setAlpha(alpha: Int) {
+        mColor = Color.argb(alpha, Color.red(mColor), Color.green(mColor), Color.blue(mColor))
+    }
+
+    override fun updateDrawState(ds: TextPaint) {
+        ds.color = mColor
+    }
+}
+
+class ForegroundAlphaColorSpanGroup(private val mAlpha: Float) {
+
+    private val mSpans: ArrayList<ForegroundAlphaColorSpan> = ArrayList()
+
+    var alpha: Float
+        get() = mAlpha
+        set(alpha) {
+            val size = mSpans.size
+            var total = 1.0f * size.toFloat() * alpha
+            for (index in 0 until size) {
+                val span = mSpans[index]
+                if (total >= 1.0f) {
+                    span.setAlpha(255)
+                    total -= 1.0f
+                } else {
+                    span.setAlpha((total * 255).toInt())
+                    total = 0.0f
+                }
+            }
+        }
+
+    fun addSpan(span: ForegroundAlphaColorSpan) {
+        span.setAlpha((mAlpha * 255).toInt())
+        mSpans.add(span)
+    }
+}
+
+class ShadowSpan(private val radius: Float, var dx: Float, var dy: Float, private val shadowColor: Int) : CharacterStyle(), UpdateAppearance {
+
+    override fun updateDrawState(tp: TextPaint) {
+        tp.setShadowLayer(radius, dx, dy, shadowColor)
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/CustomToast.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/CustomToast.kt
new file mode 100644
index 0000000000..f0b6876ad4
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/CustomToast.kt
@@ -0,0 +1,61 @@
+package com.blankj.utilcode.pkg.feature.toast
+
+import android.widget.TextView
+import androidx.annotation.StringRes
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.StringUtils
+import com.blankj.utilcode.util.ToastUtils
+import com.blankj.utilcode.util.ViewUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2017/08/31
+ * desc  : demo about ToastUtils
+ * ```
+ */
+object CustomToast {
+
+    fun showShort(text: CharSequence) {
+        show(text, false)
+    }
+
+    fun showShort(@StringRes resId: Int) {
+        show(StringUtils.getString(resId), false)
+    }
+
+    fun showShort(@StringRes resId: Int, vararg args: Any) {
+        show(StringUtils.getString(resId, args), false)
+    }
+
+    fun showShort(format: String, vararg args: Any) {
+        show(StringUtils.format(format, args), false)
+    }
+
+    fun showLong(text: CharSequence) {
+        show(text, true)
+    }
+
+    fun showLong(@StringRes resId: Int) {
+        show(StringUtils.getString(resId), true)
+    }
+
+    fun showLong(@StringRes resId: Int, vararg args: Any) {
+        show(StringUtils.getString(resId, args), true)
+    }
+
+    fun showLong(format: String, vararg args: Any) {
+        show(StringUtils.format(format, args), true)
+    }
+
+    private fun show(text: CharSequence, isLong: Boolean) {
+        val textView = ViewUtils.layoutId2View(R.layout.toast_custom) as TextView
+        textView.text = text
+        ToastUtils.make().setDurationIsLong(isLong).show(textView)
+    }
+
+    fun cancel() {
+        ToastUtils.cancel()
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/ToastActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/ToastActivity.kt
new file mode 100644
index 0000000000..f4267ad3a9
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/ToastActivity.kt
@@ -0,0 +1,101 @@
+package com.blankj.utilcode.pkg.feature.toast
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.view.Gravity
+import androidx.core.content.ContextCompat
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.pkg.helper.DialogHelper
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.ColorUtils
+import com.blankj.utilcode.util.SpanUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2016/09/29
+ * desc  : demo about ToastUtils
+ * ```
+ */
+class ToastActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, ToastActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_toast
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.toast_show_short) {
+                    Thread(Runnable { ToastUtils.showShort(R.string.toast_short) }).start()
+                },
+                CommonItemClick(R.string.toast_show_long) {
+                    Thread(Runnable { ToastUtils.showLong(R.string.toast_long) }).start()
+                },
+                CommonItemClick(R.string.toast_show_null) {
+                    ToastUtils.showLong(null)
+                },
+                CommonItemClick(R.string.toast_show_empty) {
+                    ToastUtils.showLong("")
+                },
+                CommonItemClick(R.string.toast_show_span) {
+                    ToastUtils.showLong(
+                            SpanUtils()
+                                    .appendImage(R.mipmap.ic_launcher, SpanUtils.ALIGN_CENTER)
+                                    .appendSpace(32)
+                                    .append(getString(R.string.toast_span)).setFontSize(24, true)
+                                    .create()
+                    )
+                },
+                CommonItemClick(R.string.toast_show_long_string) {
+                    ToastUtils.showLong(R.string.toast_long_string)
+                },
+                CommonItemClick(R.string.toast_show_green_font) {
+                    ToastUtils.make().setTextColor(Color.GREEN).setDurationIsLong(true).show(R.string.toast_green_font)
+                },
+                CommonItemClick(R.string.toast_show_bg_color) {
+                    ToastUtils.make().setBgColor(ColorUtils.getColor(R.color.colorAccent)).show(R.string.toast_bg_color)
+                },
+                CommonItemClick(R.string.toast_show_bg_resource) {
+                    ToastUtils.make().setBgResource(R.drawable.toast_round_rect).show(R.string.toast_custom_bg)
+                },
+                CommonItemClick(R.string.toast_show_left_icon) {
+                    ToastUtils.make().setLeftIcon(R.mipmap.ic_launcher).show(R.string.toast_show_left_icon)
+                },
+                CommonItemClick(R.string.toast_show_dark_mode) {
+                    ToastUtils.make().setTopIcon(R.mipmap.ic_launcher).setMode(ToastUtils.MODE.DARK).show(R.string.toast_show_dark_mode)
+                },
+                CommonItemClick(R.string.toast_show_middle) {
+                    ToastUtils.make().setGravity(Gravity.CENTER, 0, 0).show(R.string.toast_middle)
+                },
+                CommonItemClick(R.string.toast_show_top) {
+                    ToastUtils.make().setGravity(Gravity.TOP or Gravity.CENTER_HORIZONTAL, 0, 0).show(R.string.toast_top)
+                },
+                CommonItemClick(R.string.toast_show_custom_view) {
+                    Thread(Runnable { CustomToast.showLong(R.string.toast_custom_view) }).start()
+                },
+                CommonItemClick(R.string.toast_cancel) {
+                    ToastUtils.cancel()
+                },
+                CommonItemClick(R.string.toast_show_toast_dialog) {
+                    DialogHelper.showToastDialog()
+                },
+                CommonItemClick(R.string.toast_show_toast_when_start_activity) {
+                    ToastUtils.showLong(R.string.toast_show_toast_when_start_activity)
+                    start(this)
+                }
+        )
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/uiMessage/UiMessageActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/uiMessage/UiMessageActivity.kt
new file mode 100644
index 0000000000..a486645654
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/uiMessage/UiMessageActivity.kt
@@ -0,0 +1,78 @@
+package com.blankj.utilcode.pkg.feature.uiMessage
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.common.item.CommonItemTitle
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.UiMessageUtils
+
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2020/04/14
+ * desc  : demo about UiMessageUtils
+ * ```
+ */
+class UiMessageActivity : CommonActivity(), UiMessageUtils.UiMessageCallback {
+
+    private val titleItem: CommonItemTitle = CommonItemTitle("", true);
+    private var sendContent: String = ""
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, UiMessageActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_uiMessage
+    }
+
+    override fun bindItems(): List<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                titleItem,
+                CommonItemClick(R.string.uiMessage_add_listener_id) {
+                    UiMessageUtils.getInstance().addListener(R.id.utilCodeUiMessageAddListenerId, this)
+                },
+                CommonItemClick(R.string.uiMessage_remove_all_id) {
+                    UiMessageUtils.getInstance().removeListeners(R.id.utilCodeUiMessageAddListenerId)
+                },
+                CommonItemClick(R.string.uiMessage_add_listener) {
+                    UiMessageUtils.getInstance().addListener(this)
+                },
+                CommonItemClick(R.string.uiMessage_remove_listener) {
+                    UiMessageUtils.getInstance().removeListener(this)
+                },
+                CommonItemClick(R.string.uiMessage_send) {
+                    sendContent = "send: UiMessageActivity#${UiMessageActivity.hashCode()}"
+                    titleItem.title = ""
+                    UiMessageUtils.getInstance().send(R.id.utilCodeUiMessageAddListenerId, UiMessageActivity)
+                }
+        )
+    }
+
+    override fun handleMessage(localMessage: UiMessageUtils.UiMessage) {
+        if (localMessage.id == R.id.utilCodeUiMessageAddListenerId) {
+            var content: String = sendContent
+            content += "\nreceive: UiMessageActivity#${localMessage.getObject().hashCode()}"
+            titleItem.title = if (titleItem.title.toString().isEmpty()) {
+                content
+            } else {
+                titleItem.title.toString() + "\n" + content
+            }
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        UiMessageUtils.getInstance().removeListeners(R.id.utilCodeUiMessageAddListenerId)
+        UiMessageUtils.getInstance().removeListener(this)
+    }
+}
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/vibrate/VibrateActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/vibrate/VibrateActivity.kt
new file mode 100644
index 0000000000..5dc337bc5b
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/vibrate/VibrateActivity.kt
@@ -0,0 +1,66 @@
+package com.blankj.utilcode.pkg.feature.vibrate
+
+import android.content.Context
+import android.content.Intent
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemClick
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.VibrateUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/12/29
+ * desc  : demo about VibrateUtils
+ * ```
+ */
+class VibrateActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, VibrateActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_vibrate
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                CommonItemClick(R.string.vibrate_1000ms) {
+                    VibrateUtils.vibrate(1000)
+                },
+                CommonItemClick(R.string.vibrate_custom) {
+                    VibrateUtils.vibrate(longArrayOf(0, 1000, 1000, 2000, 2000, 1000), 1)
+                },
+                CommonItemClick(R.string.vibrate_background) {
+                    backHome()
+                    mContentView.postDelayed({
+//                        VibrateUtils.vibrate(1000) -- can not vibrate in background
+                        VibrateUtils.vibrateCompat(longArrayOf(0, 1000, 1000, 2000, 2000, 1000), 1)
+//                        VibrateUtils.vibrateCompat(1000)
+                    }, 1000)
+                },
+                CommonItemClick(R.string.vibrate_cancel) {
+                    VibrateUtils.cancel()
+                }
+        )
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        VibrateUtils.cancel()
+    }
+
+    private fun backHome() {
+        val intent = Intent(Intent.ACTION_MAIN).apply {
+            addCategory(Intent.CATEGORY_HOME)
+        }
+        startActivity(intent)
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/volume/VolumeActivity.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/volume/VolumeActivity.kt
new file mode 100644
index 0000000000..26d67dda07
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/volume/VolumeActivity.kt
@@ -0,0 +1,63 @@
+package com.blankj.utilcode.pkg.feature.volume
+
+import android.content.Context
+import android.content.Intent
+import android.media.AudioManager
+import android.widget.SeekBar
+import com.blankj.common.activity.CommonActivity
+import com.blankj.common.item.CommonItem
+import com.blankj.common.item.CommonItemSeekBar
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.CollectionUtils
+import com.blankj.utilcode.util.VolumeUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/12/29
+ * desc  : demo about VibrateUtils
+ * ```
+ */
+class VolumeActivity : CommonActivity() {
+
+    companion object {
+        fun start(context: Context) {
+            val starter = Intent(context, VolumeActivity::class.java)
+            context.startActivity(starter)
+        }
+    }
+
+    override fun bindTitleRes(): Int {
+        return R.string.demo_volume
+    }
+
+    override fun bindItems(): MutableList<CommonItem<*>> {
+        return CollectionUtils.newArrayList(
+                getItemSeekBar("Voice Call", AudioManager.STREAM_VOICE_CALL),
+                getItemSeekBar("System", AudioManager.STREAM_SYSTEM),
+                getItemSeekBar("Music", AudioManager.STREAM_MUSIC),
+                getItemSeekBar("Ring", AudioManager.STREAM_RING),
+                getItemSeekBar("Alarm", AudioManager.STREAM_ALARM),
+                getItemSeekBar("Notification", AudioManager.STREAM_NOTIFICATION),
+                getItemSeekBar("Dtmf", AudioManager.STREAM_DTMF)
+        )
+    }
+
+    private fun getItemSeekBar(title: CharSequence, streamType: Int): CommonItemSeekBar {
+        return CommonItemSeekBar(title, VolumeUtils.getMaxVolume(streamType), object : CommonItemSeekBar.ProgressListener() {
+            override fun getCurValue(): Int {
+                return VolumeUtils.getVolume(streamType)
+            }
+
+            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                VolumeUtils.setVolume(streamType, progress,  AudioManager.FLAG_SHOW_UI)
+            }
+        })
+    }
+
+    override fun onResume() {
+        super.onResume()
+        itemsView.updateItems(bindItems())
+    }
+}
diff --git a/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/helper/DialogHelper.kt b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/helper/DialogHelper.kt
new file mode 100644
index 0000000000..7d38fda3ca
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/helper/DialogHelper.kt
@@ -0,0 +1,158 @@
+package com.blankj.utilcode.pkg.helper
+
+import android.content.Context
+import android.content.DialogInterface
+import android.graphics.Bitmap
+import android.graphics.drawable.ColorDrawable
+import android.text.method.ScrollingMovementMethod
+import android.view.Gravity
+import android.view.View
+import android.view.Window
+import android.widget.Button
+import android.widget.EditText
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.fragment.app.FragmentActivity
+import com.blankj.base.dialog.BaseDialogFragment
+import com.blankj.base.dialog.DialogLayoutCallback
+import com.blankj.utilcode.pkg.R
+import com.blankj.utilcode.util.ActivityUtils
+import com.blankj.utilcode.util.KeyboardUtils
+import com.blankj.utilcode.util.ScreenUtils
+import com.blankj.utilcode.util.ToastUtils
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/01/10
+ * desc  : helper about dialog
+ * ```
+ */
+object DialogHelper {
+
+    fun showKeyboardDialog(context: Context) {
+        BaseDialogFragment().init(context, object : DialogLayoutCallback {
+            override fun bindTheme(): Int {
+                return View.NO_ID
+            }
+
+            override fun bindLayout(): Int {
+                return R.layout.keyboard_dialog
+            }
+
+            override fun initView(dialog: BaseDialogFragment, contentView: View) {
+                dialog.dialog.setCanceledOnTouchOutside(false)
+
+                val keyboardDialogEt = contentView.findViewById<EditText>(R.id.keyboardDialogEt)
+                val listener = View.OnClickListener { v ->
+                    when (v.id) {
+                        R.id.keyboardDialogHideSoftInputBtn -> KeyboardUtils.hideSoftInput(keyboardDialogEt)
+                        R.id.keyboardDialogShowSoftInputBtn -> KeyboardUtils.showSoftInput(keyboardDialogEt)
+                        R.id.keyboardDialogToggleSoftInputBtn -> KeyboardUtils.toggleSoftInput()
+                        R.id.keyboardDialogCloseBtn -> {
+                            KeyboardUtils.hideSoftInput(keyboardDialogEt)
+                            dialog.dismiss()
+                        }
+                    }
+                }
+                contentView.findViewById<View>(R.id.keyboardDialogHideSoftInputBtn).setOnClickListener(listener)
+                contentView.findViewById<View>(R.id.keyboardDialogShowSoftInputBtn).setOnClickListener(listener)
+                contentView.findViewById<View>(R.id.keyboardDialogToggleSoftInputBtn).setOnClickListener(listener)
+                contentView.findViewById<View>(R.id.keyboardDialogCloseBtn).setOnClickListener(listener)
+
+                dialog.dialog.setOnShowListener(DialogInterface.OnShowListener {
+                    KeyboardUtils.fixAndroidBug5497(dialog.dialog.window!!)
+                    KeyboardUtils.showSoftInput()
+                })
+            }
+
+            override fun setWindowStyle(window: Window) {
+                window.setBackgroundDrawable(ColorDrawable(0))
+                val attributes = window.attributes
+                attributes.gravity = Gravity.BOTTOM
+                attributes.width = ScreenUtils.getAppScreenWidth()
+                attributes.height = ScreenUtils.getAppScreenHeight() * 2 / 5
+                attributes.windowAnimations = R.style.BottomDialogAnimation
+                window.attributes = attributes
+            }
+
+            override fun onCancel(dialog: BaseDialogFragment) {}
+
+            override fun onDismiss(dialog: BaseDialogFragment) {}
+        }).show()
+    }
+
+    fun showFragmentDialog(info: CharSequence) {
+        val topActivity = ActivityUtils.getTopActivity() ?: return
+        BaseDialogFragment().init(topActivity as FragmentActivity, object : DialogLayoutCallback {
+            override fun bindTheme(): Int {
+                return R.style.CommonContentDialogStyle
+            }
+
+            override fun bindLayout(): Int {
+                return R.layout.fragment_dialog
+            }
+
+            override fun initView(dialog: BaseDialogFragment, contentView: View) {
+                val aboutTv = contentView.findViewById<TextView>(R.id.fragmentDialogAboutTv)
+                aboutTv.movementMethod = ScrollingMovementMethod.getInstance()
+                aboutTv.text = info
+            }
+
+            override fun setWindowStyle(window: Window) {}
+
+            override fun onCancel(dialog: BaseDialogFragment) {}
+
+            override fun onDismiss(dialog: BaseDialogFragment) {}
+        }).show()
+    }
+
+    fun showScreenshotDialog(screenshot: Bitmap) {
+        val topActivity = ActivityUtils.getTopActivity() ?: return
+        BaseDialogFragment().init(topActivity as FragmentActivity, object : DialogLayoutCallback {
+            override fun bindTheme(): Int {
+                return R.style.CommonContentDialogStyle
+            }
+
+            override fun bindLayout(): Int {
+                return R.layout.screen_dialog
+            }
+
+            override fun initView(dialog: BaseDialogFragment, contentView: View) {
+                contentView.findViewById<ImageView>(R.id.screenDialogScreenshotIv)
+                        .setImageBitmap(screenshot)
+            }
+
+            override fun setWindowStyle(window: Window) {}
+
+            override fun onCancel(dialog: BaseDialogFragment) {}
+
+            override fun onDismiss(dialog: BaseDialogFragment) {}
+        }).show()
+    }
+
+    fun showToastDialog() {
+        val topActivity = ActivityUtils.getTopActivity() ?: return
+        BaseDialogFragment().init(topActivity as FragmentActivity, object : DialogLayoutCallback {
+            override fun bindTheme(): Int {
+                return R.style.CommonContentDialogStyle
+            }
+
+            override fun bindLayout(): Int {
+                return R.layout.toast_dialog
+            }
+
+            override fun initView(dialog: BaseDialogFragment, contentView: View) {
+                contentView.findViewById<Button>(R.id.toastDialogShowShortToastBtn)
+                        .setOnClickListener { ToastUtils.showShort("Short") }
+            }
+
+            override fun setWindowStyle(window: Window) {}
+
+            override fun onCancel(dialog: BaseDialogFragment) {}
+
+            override fun onDismiss(dialog: BaseDialogFragment) {}
+        }).show()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res-core/anim/fade_in_1000.xml b/feature/utilcode/pkg/src/main/res/anim/fade_in_1000.xml
similarity index 100%
rename from app/src/main/res-core/anim/fade_in_1000.xml
rename to feature/utilcode/pkg/src/main/res/anim/fade_in_1000.xml
diff --git a/app/src/main/res-core/anim/fade_out_1000.xml b/feature/utilcode/pkg/src/main/res/anim/fade_out_1000.xml
similarity index 100%
rename from app/src/main/res-core/anim/fade_out_1000.xml
rename to feature/utilcode/pkg/src/main/res/anim/fade_out_1000.xml
diff --git a/feature/utilcode/pkg/src/main/res/anim/slide_bottom_in_200.xml b/feature/utilcode/pkg/src/main/res/anim/slide_bottom_in_200.xml
new file mode 100755
index 0000000000..a3012c2433
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/anim/slide_bottom_in_200.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<translate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="200"
+    android:fromYDelta="100%"
+    android:toYDelta="0" />
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/anim/slide_bottom_out_200.xml b/feature/utilcode/pkg/src/main/res/anim/slide_bottom_out_200.xml
new file mode 100755
index 0000000000..758f8def70
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/anim/slide_bottom_out_200.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<translate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="200"
+    android:fromYDelta="0"
+    android:toYDelta="100%" />
\ No newline at end of file
diff --git a/app/src/main/res-core/anim/slide_out_left_1000.xml b/feature/utilcode/pkg/src/main/res/anim/slide_left_out_1000.xml
similarity index 100%
rename from app/src/main/res-core/anim/slide_out_left_1000.xml
rename to feature/utilcode/pkg/src/main/res/anim/slide_left_out_1000.xml
diff --git a/app/src/main/res-core/anim/slide_in_right_1000.xml b/feature/utilcode/pkg/src/main/res/anim/slide_right_in_1000.xml
similarity index 100%
rename from app/src/main/res-core/anim/slide_in_right_1000.xml
rename to feature/utilcode/pkg/src/main/res/anim/slide_right_in_1000.xml
diff --git a/app/src/main/res-core/animator/fragment_slide_left_enter.xml b/feature/utilcode/pkg/src/main/res/animator/fragment_slide_left_enter.xml
similarity index 100%
rename from app/src/main/res-core/animator/fragment_slide_left_enter.xml
rename to feature/utilcode/pkg/src/main/res/animator/fragment_slide_left_enter.xml
diff --git a/app/src/main/res-core/animator/fragment_slide_left_exit.xml b/feature/utilcode/pkg/src/main/res/animator/fragment_slide_left_exit.xml
similarity index 100%
rename from app/src/main/res-core/animator/fragment_slide_left_exit.xml
rename to feature/utilcode/pkg/src/main/res/animator/fragment_slide_left_exit.xml
diff --git a/app/src/main/res-core/animator/fragment_slide_right_enter.xml b/feature/utilcode/pkg/src/main/res/animator/fragment_slide_right_enter.xml
similarity index 100%
rename from app/src/main/res-core/animator/fragment_slide_right_enter.xml
rename to feature/utilcode/pkg/src/main/res/animator/fragment_slide_right_enter.xml
diff --git a/app/src/main/res-core/animator/fragment_slide_right_exit.xml b/feature/utilcode/pkg/src/main/res/animator/fragment_slide_right_exit.xml
similarity index 100%
rename from app/src/main/res-core/animator/fragment_slide_right_exit.xml
rename to feature/utilcode/pkg/src/main/res/animator/fragment_slide_right_exit.xml
diff --git a/app/src/main/res-core/drawable/activity_activity_icon.png b/feature/utilcode/pkg/src/main/res/drawable/activity_activity_icon.png
similarity index 100%
rename from app/src/main/res-core/drawable/activity_activity_icon.png
rename to feature/utilcode/pkg/src/main/res/drawable/activity_activity_icon.png
diff --git a/app/src/main/res-core/drawable/activity_activity_logo.png b/feature/utilcode/pkg/src/main/res/drawable/activity_activity_logo.png
similarity index 100%
rename from app/src/main/res-core/drawable/activity_activity_logo.png
rename to feature/utilcode/pkg/src/main/res/drawable/activity_activity_logo.png
diff --git a/feature/utilcode/pkg/src/main/res/drawable/bar_status_custom.xml b/feature/utilcode/pkg/src/main/res/drawable/bar_status_custom.xml
new file mode 100644
index 0000000000..50a4898a07
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/drawable/bar_status_custom.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <gradient
+        android:angle="180"
+        android:centerColor="@android:color/transparent"
+        android:endColor="@color/colorPrimary"
+        android:startColor="@color/colorPrimary" />
+
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res-core/drawable/bar_status_nav_alpha.xml b/feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_alpha.xml
similarity index 100%
rename from app/src/main/res-core/drawable/bar_status_nav_alpha.xml
rename to feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_alpha.xml
diff --git a/app/src/main/res-core/drawable/bar_status_nav_color.xml b/feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_color.xml
similarity index 100%
rename from app/src/main/res-core/drawable/bar_status_nav_color.xml
rename to feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_color.xml
diff --git a/feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_custom.xml b/feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_custom.xml
new file mode 100644
index 0000000000..c30e563602
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_custom.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="1024"
+    android:viewportHeight="1024">
+
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M811.008 335.872c-2.048-7.168-11.264-9.216-17.408-4.096L690.176 435.2c-8.192
+8.192-20.48 8.192-28.672 0l-72.704-72.704c-8.192-8.192-8.192-20.48
+0-28.672l104.448-104.448c5.12-5.12
+3.072-14.336-4.096-17.408-17.408-4.096-35.84-7.168-54.272-7.168-108.544
+0-195.584 94.208-183.296 204.8 2.048 17.408 6.144 32.768 12.288 48.128L225.28
+697.344c-27.648 27.648-27.648 73.728 0 101.376 14.336 14.336 32.768 21.504 51.2
+21.504s36.864-7.168 51.2-21.504l238.592-238.592c15.36 6.144 31.744 10.24 48.128
+12.288 111.616 12.288 204.8-74.752 204.8-183.296
+0-18.432-3.072-36.864-8.192-53.248z" />
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res-core/drawable/bar_status_nav_image.xml b/feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_image.xml
similarity index 100%
rename from app/src/main/res-core/drawable/bar_status_nav_image.xml
rename to feature/utilcode/pkg/src/main/res/drawable/bar_status_nav_image.xml
diff --git a/app/src/main/res-core/drawable/fragment_nav.xml b/feature/utilcode/pkg/src/main/res/drawable/fragment_nav.xml
similarity index 100%
rename from app/src/main/res-core/drawable/fragment_nav.xml
rename to feature/utilcode/pkg/src/main/res/drawable/fragment_nav.xml
diff --git a/feature/utilcode/pkg/src/main/res/drawable/image_lena.jpg b/feature/utilcode/pkg/src/main/res/drawable/image_lena.jpg
new file mode 100644
index 0000000000..ad90c8f96d
Binary files /dev/null and b/feature/utilcode/pkg/src/main/res/drawable/image_lena.jpg differ
diff --git a/feature/utilcode/pkg/src/main/res/drawable/keyboard_dialog_bg.xml b/feature/utilcode/pkg/src/main/res/drawable/keyboard_dialog_bg.xml
new file mode 100644
index 0000000000..f236825e67
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/drawable/keyboard_dialog_bg.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/lightGray" />
+    <corners
+        android:topLeftRadius="@dimen/radius_8"
+        android:topRightRadius="@dimen/radius_8" />
+    <stroke
+        android:width="1dp"
+        android:color="@color/lightGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/drawable/shadow_circle.xml b/feature/utilcode/pkg/src/main/res/drawable/shadow_circle.xml
new file mode 100644
index 0000000000..7abb0e7159
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/drawable/shadow_circle.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+
+    <solid android:color="#80FF73A3" />
+
+</shape>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/drawable/shadow_round_rect.xml b/feature/utilcode/pkg/src/main/res/drawable/shadow_round_rect.xml
new file mode 100644
index 0000000000..576688b254
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/drawable/shadow_round_rect.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid android:color="#8034A48E" />
+    <corners android:radius="@dimen/radius_16" />
+
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res-core/drawable/snackbar_custom_bg.xml b/feature/utilcode/pkg/src/main/res/drawable/snackbar_custom_bg.xml
similarity index 100%
rename from app/src/main/res-core/drawable/snackbar_custom_bg.xml
rename to feature/utilcode/pkg/src/main/res/drawable/snackbar_custom_bg.xml
diff --git a/app/src/main/res-core/drawable/span_shape_block_high.xml b/feature/utilcode/pkg/src/main/res/drawable/span_block_high.xml
similarity index 100%
rename from app/src/main/res-core/drawable/span_shape_block_high.xml
rename to feature/utilcode/pkg/src/main/res/drawable/span_block_high.xml
diff --git a/app/src/main/res-core/drawable/span_shape_block_low.xml b/feature/utilcode/pkg/src/main/res/drawable/span_block_low.xml
similarity index 100%
rename from app/src/main/res-core/drawable/span_shape_block_low.xml
rename to feature/utilcode/pkg/src/main/res/drawable/span_block_low.xml
diff --git a/app/src/main/res-core/drawable/span_cheetah.png b/feature/utilcode/pkg/src/main/res/drawable/span_cheetah.png
similarity index 100%
rename from app/src/main/res-core/drawable/span_cheetah.png
rename to feature/utilcode/pkg/src/main/res/drawable/span_cheetah.png
diff --git a/app/src/main/res-core/drawable/toast_shape_round_rect.xml b/feature/utilcode/pkg/src/main/res/drawable/toast_round_rect.xml
similarity index 100%
rename from app/src/main/res-core/drawable/toast_shape_round_rect.xml
rename to feature/utilcode/pkg/src/main/res/drawable/toast_round_rect.xml
diff --git a/feature/utilcode/pkg/src/main/res/layout/activity_adaptscreen.xml b/feature/utilcode/pkg/src/main/res/layout/activity_adaptscreen.xml
new file mode 100644
index 0000000000..278fe8c2c6
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/activity_adaptscreen.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp">
+
+    <Button
+        android:id="@+id/adaptScreenAdaptWidthBtn"
+        style="@style/CommonWideBtnStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Adapt Width"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/adaptScreenAdaptHeightBtn"
+        style="@style/CommonWideBtnStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="12dp"
+        android:text="Adapt Height"
+        app:layout_constraintTop_toBottomOf="@id/adaptScreenAdaptWidthBtn" />
+
+    <Button
+        android:id="@+id/adaptScreenCloseAdaptBtn"
+        style="@style/CommonWideBtnStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="12dp"
+        android:text="Close Adapt pt equals dp"
+        app:layout_constraintTop_toBottomOf="@id/adaptScreenAdaptHeightBtn" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/feature/utilcode/pkg/src/main/res/layout/activity_item_shared_element_activity.xml b/feature/utilcode/pkg/src/main/res/layout/activity_item_shared_element_activity.xml
new file mode 100644
index 0000000000..1ae0c3f964
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/activity_item_shared_element_activity.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <ImageView
+        android:id="@+id/activityViewSharedElement"
+        android:layout_width="@dimen/size_40"
+        android:layout_height="@dimen/size_40"
+        android:layout_centerInParent="true"
+        android:src="@drawable/common_avatar_round"
+        android:transitionName="@string/activity_shared_element" />
+
+</RelativeLayout>
+
diff --git a/feature/utilcode/pkg/src/main/res/layout/activity_sub_activity.xml b/feature/utilcode/pkg/src/main/res/layout/activity_sub_activity.xml
new file mode 100644
index 0000000000..96ad7a773d
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/activity_sub_activity.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center_horizontal"
+    android:padding="@dimen/spacing_16">
+
+    <ImageView
+        android:id="@+id/activityViewSharedElement"
+        android:layout_width="@dimen/size_160"
+        android:layout_height="@dimen/size_160"
+        android:src="@drawable/common_avatar_round"
+        android:transitionName="@string/activity_shared_element" />
+
+</LinearLayout>
diff --git a/feature/utilcode/pkg/src/main/res/layout/adaptscreen_close_activity.xml b/feature/utilcode/pkg/src/main/res/layout/adaptscreen_close_activity.xml
new file mode 100644
index 0000000000..2f8476a4a0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/adaptscreen_close_activity.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fillViewport="true"
+    tools:context=".feature.adaptScreen.AdaptCloseActivity">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <TextView
+            android:id="@+id/adaptScreenCloseAdaptTipTv"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:text="Close Adapt\npt equals dp"
+            android:textColor="@android:color/black"
+            android:textSize="30sp"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <TextView
+            android:id="@+id/adaptScreenCloseAdaptDpTv"
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:background="@color/colorAccentOrigin"
+            android:gravity="center"
+            android:text="Height: 200dp\nFont: 30dp"
+            android:textColor="@android:color/black"
+            android:textSize="30dp"
+            app:layout_constraintTop_toBottomOf="@id/adaptScreenCloseAdaptTipTv" />
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="200pt"
+            android:background="@color/colorPrimaryOrigin"
+            android:gravity="center"
+            android:text="Height: 200pt\nFont: 30pt"
+            android:textColor="@android:color/black"
+            android:textSize="30pt"
+            app:layout_constraintTop_toBottomOf="@id/adaptScreenCloseAdaptDpTv" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</ScrollView>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/adaptscreen_height_activity.xml b/feature/utilcode/pkg/src/main/res/layout/adaptscreen_height_activity.xml
new file mode 100644
index 0000000000..75fa87e8e5
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/adaptscreen_height_activity.xml
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="utf-8"?>
+<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".feature.adaptScreen.AdaptHeightActivity">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent">
+
+        <FrameLayout
+            android:id="@+id/adaptScreenHeightFl0"
+            android:layout_width="360pt"
+            android:layout_height="match_parent"
+            android:background="@color/colorPrimaryOrigin"
+            app:layout_constraintLeft_toLeftOf="parent">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="960pt"
+                android:layout_gravity="top"
+                android:background="@color/colorAccentOrigin"
+                android:gravity="center"
+                android:text="Height: 960pt\nFont: 30pt"
+                android:textSize="30pt" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="960pt"
+                android:layout_gravity="bottom"
+                android:background="@color/colorPrimaryOrigin"
+                android:gravity="center"
+                android:text="Height: 960pt\nFont: 30sp"
+                android:textSize="30sp" />
+
+        </FrameLayout>
+
+        <FrameLayout
+            android:id="@+id/adaptScreenHeightFl1"
+            android:layout_width="360pt"
+            android:layout_height="1920pt"
+            app:layout_constraintLeft_toRightOf="@id/adaptScreenHeightFl0"
+            app:layout_constraintTop_toTopOf="parent">
+
+            <WebView
+                android:id="@+id/adaptScreenHeightWebView"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:gravity="center"
+                android:text="WebView\nHeight: 1920pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+        </FrameLayout>
+
+        <LinearLayout
+            android:layout_width="360pt"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            app:layout_constraintLeft_toRightOf="@id/adaptScreenHeightFl1">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="320pt"
+                android:background="@color/colorAccentOrigin"
+                android:gravity="center"
+                android:text="1\nHeight: 320pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="640pt"
+                android:background="@color/colorPrimaryOrigin"
+                android:gravity="center"
+                android:text="2\nHeight: 640pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="960pt"
+                android:background="@color/colorPrimaryDarkOrigin"
+                android:gravity="center"
+                android:text="3\nHeight: 960pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+        </LinearLayout>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</HorizontalScrollView>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/adaptscreen_width_activity.xml b/feature/utilcode/pkg/src/main/res/layout/adaptscreen_width_activity.xml
new file mode 100644
index 0000000000..b6bfdb2c80
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/adaptscreen_width_activity.xml
@@ -0,0 +1,153 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fillViewport="true"
+    tools:context=".feature.adaptScreen.AdaptWidthActivity">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <FrameLayout
+            android:id="@+id/adaptScreenWidthFl0"
+            android:layout_width="match_parent"
+            android:layout_height="270pt"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintTop_toTopOf="parent">
+
+            <TextView
+                android:layout_width="540pt"
+                android:layout_height="match_parent"
+                android:layout_gravity="start"
+                android:background="@color/colorAccentOrigin"
+                android:gravity="center"
+                android:text="Width: 540pt\nFont: 30pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+            <TextView
+                android:layout_width="540pt"
+                android:layout_height="match_parent"
+                android:layout_gravity="end"
+                android:background="@color/colorPrimaryOrigin"
+                android:gravity="center"
+                android:text="Width: 540pt\nFont: 30sp"
+                android:textColor="@android:color/black"
+                android:textSize="30sp" />
+
+        </FrameLayout>
+
+        <FrameLayout
+            android:id="@+id/adaptScreenWidthFl1"
+            android:layout_width="1080pt"
+            android:layout_height="270pt"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/adaptScreenWidthFl0">
+
+            <WebView
+                android:id="@+id/adaptScreenWidthWebView"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" />
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:gravity="center"
+                android:text="WebView\nWidth: 1080pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+        </FrameLayout>
+
+        <FrameLayout
+            android:id="@+id/adaptScreenWidthFl2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toBottomOf="@id/adaptScreenWidthFl1">
+
+            <ImageView
+                android:layout_width="540pt"
+                android:layout_height="wrap_content"
+                android:layout_gravity="start"
+                android:adjustViewBounds="true"
+                android:src="@drawable/image_lena" />
+
+            <TextView
+                android:layout_width="540pt"
+                android:layout_height="match_parent"
+                android:layout_gravity="center_vertical|end"
+                android:background="@color/colorAccentOrigin"
+                android:gravity="center"
+                android:text="Left ImageView\nWidth: 540pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+        </FrameLayout>
+
+        <FrameLayout
+            android:id="@+id/adaptScreenWidthFl3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toBottomOf="@id/adaptScreenWidthFl2">
+
+            <ImageView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="start"
+                android:adjustViewBounds="true"
+                android:src="@drawable/image_lena" />
+
+            <TextView
+                android:layout_width="540pt"
+                android:layout_height="match_parent"
+                android:layout_gravity="center_vertical|end"
+                android:background="@color/colorAccentOrigin"
+                android:gravity="center"
+                android:text="Left ImageView\nWidth: wrap_content"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+        </FrameLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toBottomOf="@id/adaptScreenWidthFl3">
+
+            <TextView
+                android:layout_width="180pt"
+                android:layout_height="270pt"
+                android:background="@color/colorAccentOrigin"
+                android:gravity="center"
+                android:text="1\nWidth: 180pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+            <TextView
+                android:id="@+id/width2Tv"
+                android:layout_width="360pt"
+                android:layout_height="270pt"
+                android:background="@color/colorPrimaryOrigin"
+                android:gravity="center"
+                android:text="2\nWidth: 360pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+            <TextView
+                android:id="@+id/width3Tv"
+                android:layout_width="540pt"
+                android:layout_height="270pt"
+                android:background="@color/colorPrimaryDarkOrigin"
+                android:gravity="center"
+                android:text="3\nWidth: 540pt"
+                android:textColor="@android:color/black"
+                android:textSize="30pt" />
+
+        </LinearLayout>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</ScrollView>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_alpha_activity.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_alpha_activity.xml
new file mode 100644
index 0000000000..0e44e92e02
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_alpha_activity.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/image_lena"
+    android:orientation="vertical">
+
+    <include layout="@layout/common_item" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_alpha_fragment.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_alpha_fragment.xml
new file mode 100644
index 0000000000..8ee1ca308c
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_alpha_fragment.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/image_lena"
+    android:orientation="vertical">
+
+    <View
+        android:id="@+id/barStatusAlphaFragmentFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+
+    <include layout="@layout/common_item" />
+</LinearLayout>
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_color_fragment.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_color_fragment.xml
new file mode 100644
index 0000000000..9a9ec8f3d8
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_color_fragment.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <View
+        android:id="@+id/barStatusColorFragmentFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+
+    <include layout="@layout/common_item" />
+
+</LinearLayout>
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_custom_fragment.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_custom_fragment.xml
new file mode 100644
index 0000000000..33a8f1e431
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_custom_fragment.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <View
+        android:id="@+id/barStatusCustomFragmentFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:background="@drawable/bar_status_custom" />
+
+</LinearLayout>
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_drawer_activity.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_drawer_activity.xml
new file mode 100644
index 0000000000..9f0324e6a0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_drawer_activity.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/barStatusDrawerRootLl"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <View
+        android:id="@+id/barStatusDrawerFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+
+    <include layout="@layout/common_item" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_fragment_activity.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_fragment_activity.xml
new file mode 100644
index 0000000000..16518fc22f
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_fragment_activity.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <androidx.viewpager.widget.ViewPager
+        android:id="@+id/barStatusFragmentVp"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:orientation="vertical"
+        android:overScrollMode="never" />
+
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/barStatusFragmentNav"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom"
+        android:background="?android:attr/windowBackground"
+        app:menu="@menu/status_bar_nav" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_image_view_activity.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_image_view_activity.xml
new file mode 100644
index 0000000000..deb777407e
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_image_view_activity.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <ImageView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:scaleType="centerCrop"
+        android:src="@drawable/image_lena" />
+
+    <include layout="@layout/common_item" />
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/bar_status_image_view_fragment.xml b/feature/utilcode/pkg/src/main/res/layout/bar_status_image_view_fragment.xml
new file mode 100644
index 0000000000..f7cc6202c7
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/bar_status_image_view_fragment.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <ImageView
+            android:id="@+id/barStatusImageViewFragmentHeaderIv"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:scaleType="centerCrop"
+            android:src="@drawable/image_lena" />
+
+        <include layout="@layout/common_item" />
+
+    </LinearLayout>
+
+    <View
+        android:id="@+id/barStatusImageViewFragmentFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/fragment_activity.xml b/feature/utilcode/pkg/src/main/res/layout/fragment_activity.xml
new file mode 100644
index 0000000000..ab89e8e725
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/fragment_activity.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/white"
+    android:orientation="vertical">
+
+    <FrameLayout
+        android:id="@+id/fragmentContainer"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1" />
+
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/fragmentNav"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom"
+        android:background="?android:attr/windowBackground"
+        app:menu="@menu/fragment_nav" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/fragment_child.xml b/feature/utilcode/pkg/src/main/res/layout/fragment_child.xml
new file mode 100644
index 0000000000..46d08d7b82
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/fragment_child.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <include layout="@layout/common_item" />
+
+</FrameLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/fragment_container.xml b/feature/utilcode/pkg/src/main/res/layout/fragment_container.xml
new file mode 100644
index 0000000000..46d08d7b82
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/fragment_container.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <include layout="@layout/common_item" />
+
+</FrameLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/fragment_dialog.xml b/feature/utilcode/pkg/src/main/res/layout/fragment_dialog.xml
new file mode 100644
index 0000000000..7e8aa92c9a
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/fragment_dialog.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fragmentDialogAboutTv"
+    style="@style/CommonTextStyle"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@drawable/common_content_dialog_bg"
+    android:padding="@dimen/spacing_16"
+    android:scrollbars="vertical" />
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/fragment_item_shared_element.xml b/feature/utilcode/pkg/src/main/res/layout/fragment_item_shared_element.xml
new file mode 100644
index 0000000000..bd06cf49d4
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/fragment_item_shared_element.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <ImageView
+        android:id="@+id/fragmentRootSharedElementIv"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:src="@drawable/image_lena"
+        android:transitionName="@string/fragment_transition" />
+
+</RelativeLayout>
+
diff --git a/feature/utilcode/pkg/src/main/res/layout/fragment_root.xml b/feature/utilcode/pkg/src/main/res/layout/fragment_root.xml
new file mode 100644
index 0000000000..1eabb1b936
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/fragment_root.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <View
+        android:id="@+id/rootFragmentFakeStatusBar"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+
+    <ScrollView
+        style="@style/CommonScrollStyle"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+        <FrameLayout
+            android:id="@+id/rootFragmentContainer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+    </ScrollView>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/keyboard_activity.xml b/feature/utilcode/pkg/src/main/res/layout/keyboard_activity.xml
new file mode 100644
index 0000000000..947b981509
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/keyboard_activity.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="1000dp"
+    android:orientation="vertical">
+
+    <include layout="@layout/common_item" />
+
+    <EditText
+        android:id="@+id/keyboardEt"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:inputType="phone" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/keyboard_dialog.xml b/feature/utilcode/pkg/src/main/res/layout/keyboard_dialog.xml
new file mode 100644
index 0000000000..35493183f8
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/keyboard_dialog.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/keyboard_dialog_bg"
+    android:fillViewport="true">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="1000dp"
+        android:orientation="vertical"
+        android:padding="@dimen/spacing_16">
+
+        <Button
+            android:id="@+id/keyboardDialogHideSoftInputBtn"
+            style="@style/CommonWideBtnStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/keyboard_hide_soft_input" />
+
+        <Button
+            android:id="@+id/keyboardDialogShowSoftInputBtn"
+            style="@style/CommonWideBtnStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/keyboardDialogHideSoftInputBtn"
+            android:layout_marginTop="@dimen/spacing_6"
+            android:text="@string/keyboard_show_soft_input" />
+
+        <Button
+            android:id="@+id/keyboardDialogToggleSoftInputBtn"
+            style="@style/CommonWideBtnStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/keyboardDialogShowSoftInputBtn"
+            android:layout_marginTop="@dimen/spacing_6"
+            android:text="@string/keyboard_toggle_soft_input" />
+
+        <Button
+            android:id="@+id/keyboardDialogCloseBtn"
+            style="@style/CommonWideBtnStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/keyboardDialogToggleSoftInputBtn"
+            android:layout_marginTop="@dimen/spacing_6"
+            android:text="@string/keyboard_close_dialog" />
+
+        <EditText
+            android:id="@+id/keyboardDialogEt"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_alignParentBottom="true"
+            android:inputType="text" />
+
+    </RelativeLayout>
+</ScrollView>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/mvp_activity.xml b/feature/utilcode/pkg/src/main/res/layout/mvp_activity.xml
new file mode 100644
index 0000000000..d594eb654d
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/mvp_activity.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp">
+
+    <TextView
+        android:id="@+id/mvpUpdateTv"
+        style="@style/CommonWideBtnStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:text="Get Update Msg"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/mvpMeasureWidthTv"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:background="@color/white"
+        android:padding="8dp"
+        android:text="测量文本框长度"
+        android:textColor="@color/darkGray"
+        android:textSize="16sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/mvpUpdateTv" />
+
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/screen_dialog.xml b/feature/utilcode/pkg/src/main/res/layout/screen_dialog.xml
new file mode 100644
index 0000000000..e5644ddac0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/screen_dialog.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@drawable/common_content_dialog_bg"
+    android:orientation="vertical"
+    android:padding="@dimen/spacing_16">
+
+    <ImageView
+        android:id="@+id/screenDialogScreenshotIv"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:adjustViewBounds="true" />
+
+</LinearLayout>
diff --git a/feature/utilcode/pkg/src/main/res/layout/shadow_activity.xml b/feature/utilcode/pkg/src/main/res/layout/shadow_activity.xml
new file mode 100644
index 0000000000..c8fca04657
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/shadow_activity.xml
@@ -0,0 +1,182 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center_horizontal"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:layout_marginTop="32dp"
+        android:background="@drawable/common_item_divider" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:orientation="horizontal">
+
+        <View
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_gravity="center"
+            android:background="#80FF73A3"
+            android:clickable="true" />
+
+        <View
+            android:id="@+id/shadowRectView"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_gravity="center"
+            android:layout_marginLeft="16dp"
+            android:background="#80FF73A3"
+            android:clickable="true" />
+
+        <FrameLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="16dp">
+
+
+            <View
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_gravity="center"
+                android:background="#80FF73A3"
+                android:clickable="true" />
+
+            <View
+                android:id="@+id/shadowRectView1"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_gravity="center"
+                android:background="#80FF73A3"
+                android:clickable="true" />
+
+        </FrameLayout>
+
+    </LinearLayout>
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:background="@drawable/common_item_divider" />
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:layout_marginTop="32dp"
+        android:background="@drawable/common_item_divider" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:orientation="horizontal">
+
+        <View
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_gravity="center"
+            android:background="@drawable/shadow_round_rect"
+            android:clickable="true" />
+
+        <View
+            android:id="@+id/shadowRoundRectView"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_gravity="center"
+            android:layout_marginLeft="16dp"
+            android:background="@drawable/shadow_round_rect"
+            android:clickable="true" />
+
+        <FrameLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="16dp">
+
+            <View
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_gravity="center"
+                android:background="@drawable/shadow_round_rect"
+                android:clickable="true" />
+
+            <View
+                android:id="@+id/shadowRoundRectView1"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_gravity="center"
+                android:background="@drawable/shadow_round_rect"
+                android:clickable="true" />
+
+        </FrameLayout>
+
+    </LinearLayout>
+
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:background="@drawable/common_item_divider" />
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:layout_marginTop="32dp"
+        android:background="@drawable/common_item_divider" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:orientation="horizontal">
+
+        <View
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_gravity="center"
+            android:background="@drawable/shadow_circle"
+            android:clickable="true" />
+
+        <View
+            android:id="@+id/shadowCircleView"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_gravity="center"
+            android:layout_marginLeft="16dp"
+            android:background="@drawable/shadow_circle"
+            android:clickable="true" />
+
+        <FrameLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="16dp">
+
+            <View
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_gravity="center"
+                android:background="@drawable/shadow_circle"
+                android:clickable="true" />
+
+            <View
+                android:id="@+id/shadowCircleView1"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:layout_gravity="center"
+                android:background="@drawable/shadow_circle"
+                android:clickable="true" />
+
+        </FrameLayout>
+
+    </LinearLayout>
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:background="@drawable/common_item_divider" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/snackbar_custom.xml b/feature/utilcode/pkg/src/main/res/layout/snackbar_custom.xml
new file mode 100644
index 0000000000..10dbc26c7f
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/snackbar_custom.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/snackbarCustomTv"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_gravity="center"
+    android:background="@drawable/snackbar_custom_bg"
+    android:drawableLeft="@mipmap/ic_launcher"
+    android:drawablePadding="@dimen/spacing_16"
+    android:gravity="center_vertical"
+    android:padding="@dimen/spacing_16"
+    android:text="@string/snackbar_custom_view"
+    android:textColor="@color/white"
+    android:textSize="@dimen/font_24" />
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/span_activity.xml b/feature/utilcode/pkg/src/main/res/layout/span_activity.xml
new file mode 100644
index 0000000000..a94de917fe
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/span_activity.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_horizontal"
+    android:orientation="vertical"
+    android:padding="@dimen/spacing_16">
+
+    <TextView
+        android:id="@+id/spanAboutAnimTv"
+        style="@style/CommonTextStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="start"
+        android:layerType="software" />
+
+    <TextView
+        android:id="@+id/spanAboutTv"
+        style="@style/CommonTextStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:clickable="true"
+        android:focusable="true"
+        android:gravity="start|center_vertical" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/toast_custom.xml b/feature/utilcode/pkg/src/main/res/layout/toast_custom.xml
new file mode 100644
index 0000000000..6bc4d999af
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/toast_custom.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_gravity="center"
+    android:background="@drawable/toast_round_rect"
+    android:drawableLeft="@mipmap/ic_launcher"
+    android:drawablePadding="@dimen/spacing_16"
+    android:gravity="center"
+    android:padding="@dimen/spacing_16"
+    android:textColor="@color/white"
+    android:textSize="@dimen/font_24" />
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/layout/toast_dialog.xml b/feature/utilcode/pkg/src/main/res/layout/toast_dialog.xml
new file mode 100644
index 0000000000..e926cd1201
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/layout/toast_dialog.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@drawable/common_content_dialog_bg"
+    android:orientation="vertical"
+    android:padding="@dimen/spacing_16">
+
+    <Button
+        android:id="@+id/toastDialogShowShortToastBtn"
+        style="@style/CommonWideBtnStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/toast_show_short" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/menu/fragment_nav.xml b/feature/utilcode/pkg/src/main/res/menu/fragment_nav.xml
new file mode 100644
index 0000000000..617a39bf0f
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/menu/fragment_nav.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/fragmentNavigation0"
+        android:icon="@drawable/fragment_nav"
+        android:title="@string/fragment_zero" />
+
+    <item
+        android:id="@+id/fragmentNavigation1"
+        android:icon="@drawable/fragment_nav"
+        android:title="@string/fragment_one" />
+
+    <item
+        android:id="@+id/fragmentNavigation2"
+        android:icon="@drawable/fragment_nav"
+        android:title="@string/fragment_two" />
+
+</menu>
diff --git a/feature/utilcode/pkg/src/main/res/menu/status_bar_nav.xml b/feature/utilcode/pkg/src/main/res/menu/status_bar_nav.xml
new file mode 100644
index 0000000000..0dd52fbcf9
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/menu/status_bar_nav.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/barStatusFragmentNavigationColor"
+        android:icon="@drawable/bar_status_nav_color"
+        android:title="@string/bar_status_title_color" />
+
+    <item
+        android:id="@+id/barStatusFragmentNavigationAlpha"
+        android:icon="@drawable/bar_status_nav_alpha"
+        android:title="@string/bar_status_title_alpha" />
+
+    <item
+        android:id="@+id/barStatusFragmentNavigationImageView"
+        android:icon="@drawable/bar_status_nav_image"
+        android:title="@string/bar_status_title_image_view" />
+
+    <item
+        android:id="@+id/barStatusFragmentNavigationCustom"
+        android:icon="@drawable/bar_status_nav_custom"
+        android:title="@string/bar_status_title_custom" />
+
+</menu>
diff --git a/app/src/main/res-core/raw/test.txt b/feature/utilcode/pkg/src/main/res/raw/test.txt
similarity index 100%
rename from app/src/main/res-core/raw/test.txt
rename to feature/utilcode/pkg/src/main/res/raw/test.txt
diff --git a/app/src/main/res-core/transition/explode_1000.xml b/feature/utilcode/pkg/src/main/res/transition/explode_1000.xml
similarity index 100%
rename from app/src/main/res-core/transition/explode_1000.xml
rename to feature/utilcode/pkg/src/main/res/transition/explode_1000.xml
diff --git a/app/src/main/res-core/transition/fade_1000.xml b/feature/utilcode/pkg/src/main/res/transition/fade_1000.xml
similarity index 100%
rename from app/src/main/res-core/transition/fade_1000.xml
rename to feature/utilcode/pkg/src/main/res/transition/fade_1000.xml
diff --git a/app/src/main/res-core/transition/slide_1000.xml b/feature/utilcode/pkg/src/main/res/transition/slide_1000.xml
similarity index 100%
rename from app/src/main/res-core/transition/slide_1000.xml
rename to feature/utilcode/pkg/src/main/res/transition/slide_1000.xml
diff --git a/feature/utilcode/pkg/src/main/res/values-en-rUS/strings.xml b/feature/utilcode/pkg/src/main/res/values-en-rUS/strings.xml
new file mode 100644
index 0000000000..20efc6c063
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/values-en-rUS/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="demo_language">Language Demo</string>
+
+    <string name="language_apply_simple_chinese">Apply Simple Chinese</string>
+    <string name="language_apply_american">Apply American</string>
+    <string name="language_apply_english">Apply English</string>
+    <string name="language_apply_arabic">Apply Arabic</string>
+    <string name="language_apply_system">Apply System</string>
+
+</resources>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/values-zh-rCN/strings.xml b/feature/utilcode/pkg/src/main/res/values-zh-rCN/strings.xml
new file mode 100644
index 0000000000..e06759a6d0
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/values-zh-rCN/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="demo_language">语言例子</string>
+
+    <string name="language_apply_simple_chinese">设置简体中文</string>
+    <string name="language_apply_american">设置美语</string>
+    <string name="language_apply_english">设置英语</string>
+    <string name="language_apply_arabic">设置阿拉伯语</string>
+    <string name="language_apply_system">设置系统语言</string>
+
+</resources>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/values/ids.xml b/feature/utilcode/pkg/src/main/res/values/ids.xml
new file mode 100644
index 0000000000..00728ce459
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/values/ids.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <item name="utilCodeUiMessageAddListenerId" type="id" />
+</resources>
\ No newline at end of file
diff --git a/feature/utilcode/pkg/src/main/res/values/strings.xml b/feature/utilcode/pkg/src/main/res/values/strings.xml
new file mode 100644
index 0000000000..551f9adbaf
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/values/strings.xml
@@ -0,0 +1,371 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:tools="http://schemas.android.com/tools" tools:ignore="MissingTranslation">
+    <string name="demo_activity">ActivityUtils Demo</string>
+    <string name="demo_adapt_screen">AdaptScreenUtils Demo</string>
+    <string name="demo_api">ApiUtils Demo</string>
+    <string name="demo_app">AppUtils Demo</string>
+    <string name="demo_bar">BarUtils Demo</string>
+    <string name="demo_brightness">BrightnessUtils Demo</string>
+    <string name="demo_bus">BusUtils Demo</string>
+    <string name="demo_clean">CleanUtils Demo</string>
+    <string name="demo_click">ClickUtils Demo</string>
+    <string name="demo_clipboard">ClipboardUtils Demo</string>
+    <string name="demo_crash">CrashUtils Demo</string>
+    <string name="demo_device">DeviceUtils Demo</string>
+    <string name="demo_file">FileUtils Demo</string>
+    <string name="demo_flashlight">FlashlightUtils Demo</string>
+    <string name="demo_fragment">FragmentUtils Demo</string>
+    <string name="demo_image">ImageUtils Demo</string>
+    <string name="demo_intent">IntentUtils Demo</string>
+    <string name="demo_keyboard">KeyboardUtils Demo</string>
+    <string name="demo_language">Language Demo</string>
+    <string name="demo_log">LogUtils Demo</string>
+    <string name="demo_messenger">MessengerUtils Demo</string>
+    <string name="demo_meta_data">MetaDataUtils Demo</string>
+    <string name="demo_mvp">Mvp Demo</string>
+    <string name="demo_network">NetworkUtils Demo</string>
+    <string name="demo_path">PathUtils Demo</string>
+    <string name="demo_notification">Notification Demo</string>
+    <string name="demo_permission">PermissionUtils Demo</string>
+    <string name="demo_phone">PhoneUtils Demo</string>
+    <string name="demo_process">ProcessUtils Demo</string>
+    <string name="demo_reflect">ReflectUtils Demo</string>
+    <string name="demo_resource">ResourceUtils Demo</string>
+    <string name="demo_screen">ScreenUtils Demo</string>
+    <string name="demo_rom">RomUtils Demo</string>
+    <string name="demo_sdcard">SDCardUtils Demo</string>
+    <string name="demo_shadow">Shadow Demo</string>
+    <string name="demo_snackbar">SnackbarUtils Demo</string>
+    <string name="demo_spStatic">SPStaticUtils Demo</string>
+    <string name="demo_span">SpanUtils Demo</string>
+    <string name="demo_toast">ToastUtils Demo</string>
+    <string name="demo_uiMessage">UiMessage Demo</string>
+    <string name="demo_trans_activity">TransActivity Demo</string>
+    <string name="demo_vibrate">VibrateUtils Demo</string>
+    <string name="demo_volume">VolumeUtils Demo</string>
+
+    <!--Activity 相关-->
+    <string name="activity_shared_element">Shared Element</string>
+    <string name="activity_clz">Clz</string>
+    <string name="activity_clz_opt">Clz Opt</string>
+    <string name="activity_clz_anim">Clz Anim</string>
+    <string name="activity_act_clz">Act Clz</string>
+    <string name="activity_act_clz_opt">Act Clz Opt</string>
+    <string name="activity_act_clz_shared_element">Act Clz Shared Element</string>
+    <string name="activity_act_clz_anim">Act Clz Anim</string>
+    <string name="activity_pkg_cls">Pkg Cls</string>
+    <string name="activity_pkg_cls_opt">Pkg Cls Opt</string>
+    <string name="activity_pkg_cls_anim">Pkg Cls Anim</string>
+    <string name="activity_act_pkg_cls">Act Pkg Cls</string>
+    <string name="activity_act_pkg_cls_opt">Act Pkg Cls Opt</string>
+    <string name="activity_act_pkg_cls_shared_element">Act Pkg Cls Shared Element</string>
+    <string name="activity_act_pkg_cls_anim">Act Pkg Cls Anim</string>
+    <string name="activity_intent">Intent</string>
+    <string name="activity_intent_opt">Intent Opt</string>
+    <string name="activity_intent_shared_element">Intent Shared Element</string>
+    <string name="activity_intent_anim">Intent Anim</string>
+    <string name="activity_intents">Intents</string>
+    <string name="activity_intents_opt">Intents Opt</string>
+    <string name="activity_intents_anim">Intents Anim</string>
+    <string name="activity_act_intents">Act Intents</string>
+    <string name="activity_act_intents_opt">Act Intents Opt</string>
+    <string name="activity_act_intents_anim">Act Intents Anim</string>
+    <string name="activity_start_activities">Start Activities</string>
+    <string name="activity_start_home_activity">Start Home Activity</string>
+    <string name="activity_start_launcher_activity">Start Launcher Activity</string>
+    <string name="activity_finish_activity">Finish CoreUtilActivity</string>
+    <string name="activity_finish_to_activity">Finish To CoreUtilActivity</string>
+    <string name="activity_finish_all_activities_except_newest">Finish All Activities Except Newest</string>
+    <string name="activity_finish_all_activities">Finish All Activities</string>
+
+    <!--Api 相关-->
+    <string name="api_invoke_with_params">Invoke With Params</string>
+    <string name="api_invoke_with_return_value">Invoke With Return Value</string>
+    <string name="api_post_bus">Post Bus</string>
+
+    <!--App 相关-->
+    <string name="app_install">Install Test App</string>
+    <string name="app_install_tips">Test app have installed</string>
+    <string name="install_successfully">Install successfully</string>
+    <string name="install_unsuccessfully">Install unsuccessfully</string>
+    <string name="app_uninstall">Uninstall Test App</string>
+    <string name="app_uninstall_tips">Please install test app first</string>
+    <string name="uninstall_successfully">Uninstall successfully</string>
+    <string name="uninstall_unsuccessfully">Uninstall unsuccessfully</string>
+    <string name="app_launch">Launch App</string>
+    <string name="app_relaunch">Relaunch App</string>
+    <string name="app_launch_details_settings">Launch App Details Settings</string>
+    <string name="app_exit">Exit App</string>
+
+    <!--AdaptScreen 相关-->
+    <string name="adaptScreen_adapt_width">Adapt Width</string>
+    <string name="adaptScreen_adapt_height">Adapt Height</string>
+    <string name="adaptScreen_adapt_close">Close Adapt pt equals dp</string>
+
+    <!--Bar 相关-->
+    <string name="bar_about_status_bar">About Status Bar</string>
+    <string name="bar_about_nav_bar">About Nav Bar</string>
+    <string name="bar_about_notification_bar">About Notification Bar</string>
+
+    <string name="bar_status_about">About Status</string>
+    <string name="bar_status_visibility">Status Visibility</string>
+    <string name="bar_status_light_mode">Light Mode</string>
+    <string name="bar_status_set_color">Set Color</string>
+    <string name="bar_status_set_alpha">Set Alpha</string>
+    <string name="bar_status_set_image_view">Set Image View</string>
+    <string name="bar_status_set_custom">Set Custom</string>
+    <string name="bar_status_set_fragment">Set Fragment</string>
+    <string name="bar_status_set_drawer">Set Drawer</string>
+    <string name="bar_status_random_color">Random Color</string>
+    <string name="bar_status_set_transparent">Set Transparent</string>
+    <string name="bar_status_title_color">Color</string>
+    <string name="bar_status_title_alpha">Alpha</string>
+    <string name="bar_status_is_front">Front</string>
+    <string name="bar_status_title_image_view">Image</string>
+    <string name="bar_status_title_custom">Custom</string>
+
+    <string name="bar_notification_about">About Notification</string>
+    <string name="bar_notification_show">Show Notification And Hide After 2s</string>
+
+    <string name="bar_nav_about">About Nav</string>
+    <string name="bar_nav_visibility">Nav Visibility</string>
+    <string name="bar_nav_light_mode">Light Mode</string>
+    <string name="bar_nav_color">Set Nav Color Random</string>
+
+    <!-- Brightness 相关 -->
+    <string name="brightness_auto_brightness">Auto Brightness</string>
+
+    <!--Clean 相关-->
+    <string name="clean_internal_cache">Clean Internal Cache</string>
+    <string name="clean_internal_files">Clean Internal Files</string>
+    <string name="clean_internal_databases">Clean Internal Databases</string>
+    <string name="clean_internal_sp">Clean Internal SP</string>
+    <string name="clean_external_cache">Clean External Cache</string>
+    <string name="clean_app_user_data">cleanAppUserData</string>
+
+    <!--Click 相关-->
+    <string name="click_view_scale_default">Click View Scale Default</string>
+    <string name="click_view_scale_half">Click View Scale 50%</string>
+    <string name="click_view_alpha_default">Click View Alpha Default</string>
+    <string name="click_bg_alpha_default">Click Bg Alpha Default</string>
+    <string name="click_bg_dark_default">Click Bg Dark Default</string>
+    <string name="click_global_debouncing">Click Global Debouncing</string>
+    <string name="click_single_debouncing">Click Single Debouncing</string>
+    <string name="click_multi">Click Multi</string>
+    <string name="click_single_tip">The view does not respond to clicks within 5 seconds.</string>
+    <string name="click_global_tip">The views which set global debouncing does not respond to clicks within 5 seconds.</string>
+
+
+    <!--Bus 相关-->
+    <string name="bus_register">Register</string>
+    <string name="bus_unregister">Unregister</string>
+    <string name="bus_post">Post</string>
+    <string name="bus_post_basic_type">Post Basic Type</string>
+    <string name="bus_post_sticky">Post Sticky</string>
+    <string name="bus_post_to_io_thread">Post To IO Thread</string>
+    <string name="bus_remove_sticky">Remove Sticky</string>
+    <string name="bus_start_compare">Start BusUtils Vs EventBus</string>
+    <string name="bus_compare_register_10000_times">Compare Register 10000 Times</string>
+    <string name="bus_compare_post_to_1_subscriber_1000000_times">Compare Post To 1 Subscriber 1000000 Times</string>
+    <string name="bus_compare_post_to_100_subscriber_100000_times">Compare Post To 100 Subscribers 100000 Times</string>
+    <string name="bus_compare_unregister_10000_times">Compare Unregister 10000 Times</string>
+
+    <!-- Flashlight相关 -->
+    <string name="flashlight_status">Flashlight Status</string>
+
+    <!--Fragment 相关-->
+    <string name="fragment_zero">Fragment0</string>
+    <string name="fragment_one">Fragment1</string>
+    <string name="fragment_two">Fragment2</string>
+    <string name="fragment_show_stack">Show Stack</string>
+    <string name="fragment_add_child">Add Child</string>
+    <string name="fragment_add_child_stack">Add Child Stack</string>
+    <string name="fragment_add_hide">Add Hide</string>
+    <string name="fragment_add_hide_stack">Add Hide Stack</string>
+    <string name="fragment_add_demo1_show">Add Demo1 Show</string>
+    <string name="fragment_pop">Pop</string>
+    <string name="fragment_remove">Remove</string>
+    <string name="fragment_pop_to_root">Pop To Root</string>
+    <string name="fragment_hide_demo0_show_demo1">Hide Demo0 Show Demo1</string>
+    <string name="fragment_hide_demo1_show_demo0">Hide Demo1 Show Demo0</string>
+    <string name="fragment_replace">Replace</string>
+    <string name="fragment_transition">Transition</string>
+
+    <!--Image 相关-->
+    <string name="image_src">Src</string>
+    <string name="image_add_color">Add Color</string>
+    <string name="image_scale">Scale</string>
+    <string name="image_clip">Clip</string>
+    <string name="image_skew">Skew</string>
+    <string name="image_rotate">Rotate</string>
+    <string name="image_to_round">To Round</string>
+    <string name="image_to_round_border">To Round Border</string>
+    <string name="image_to_round_corner">To Round Corner</string>
+    <string name="image_to_round_corner_border">To Round Corner Border</string>
+    <string name="image_add_corner_border">Add Corner Border</string>
+    <string name="image_add_circle_border">Add Circle Border</string>
+    <string name="image_add_reflection">Add Reflection</string>
+    <string name="image_add_text_watermark">Add Text Watermark</string>
+    <string name="image_add_image_watermark">Add Image Watermark</string>
+    <string name="image_to_gray">Gray</string>
+    <string name="image_fast_blur">Fast Blur</string>
+    <string name="image_render_script_blur">Render Script Blur</string>
+    <string name="image_stack_blur">Stack Blur</string>
+    <string name="image_compress_by_scale">Compress By Scale</string>
+    <string name="image_compress_by_quality_half">Compress By Quality Half</string>
+    <string name="image_compress_by_quality_max_size">Compress By Quality Max Size</string>
+    <string name="image_compress_by_sample_size">Compress By Sample Size</string>
+
+
+    <!--Network 相关-->
+    <string name="network_open_wireless_settings">Open Wireless Settings</string>
+    <string name="network_data_enabled">Mobile Data Enabled</string>
+    <string name="network_wifi_enabled">Wifi Enabled</string>
+
+    <!--Keyboard 相关-->
+    <string name="keyboard_hide_soft_input">Hide Soft Input</string>
+    <string name="keyboard_show_soft_input">Show Soft Input</string>
+    <string name="keyboard_toggle_soft_input">Toggle Soft Input</string>
+    <string name="keyboard_show_dialog">Show Dialog</string>
+    <string name="keyboard_close_dialog">Close Dialog</string>
+
+    <!--Language 相关-->
+    <string name="language_relaunch_app">Relaunch App</string>
+    <string name="language_apply_simple_chinese">Apply Simple Chinese</string>
+    <string name="language_apply_american">Apply American</string>
+    <string name="language_apply_english">Apply English</string>
+    <string name="language_apply_arabic">Apply Arabic</string>
+    <string name="language_apply_system">Apply System</string>
+
+    <!--Log 相关-->
+    <string name="log_switch">Log Switch</string>
+    <string name="log_console_switch">Console Switch</string>
+    <string name="log_console_listener_switch">Console Listener Switch</string>
+    <string name="log_head_switch">Head Switch</string>
+    <string name="log_file_switch">File Switch</string>
+    <string name="log_file_listener_switch">File Listener Switch</string>
+    <string name="log_border_switch">Border Switch</string>
+    <string name="log_single_tag_switch">Single Tag Switch</string>
+    <string name="log_with_no_tag">Log With No Tag</string>
+    <string name="log_with_tag">Log With Tag</string>
+    <string name="log_in_new_thread">Log In New Thread</string>
+    <string name="log_null">Log Null</string>
+    <string name="log_many_params">Log Many Params</string>
+    <string name="log_long_string">Log Long String</string>
+    <string name="log_to_file">Log To File</string>
+    <string name="log_json">Log Json</string>
+    <string name="log_xml">Log Xml</string>
+    <string name="log_array">Log Array</string>
+    <string name="log_throwable">Log Throwable</string>
+    <string name="log_bundle">Log Bundle</string>
+    <string name="log_intent">Log Intent</string>
+    <string name="log_array_list">Log Array List</string>
+    <string name="log_map">Log Map</string>
+
+    <!--Messenger 相关-->
+    <string name="messenger_post_to_main_server">Post To Main Server</string>
+    <string name="messenger_post_to_self_client">Post To Self Client</string>
+    <string name="messenger_start_remote">Start Remote</string>
+    <string name="messenger_register_remote_client">Register Remote client</string>
+    <string name="messenger_unregister_remote_client">Unregister Remote Client</string>
+
+    <!--Notification 相关-->
+    <string name="notification_notify">Notify</string>
+    <string name="notification_cancel">Cancel</string>
+    <string name="notification_cancel_all">Cancel All</string>
+    <string name="notification_show">Show</string>
+
+    <!--Permission 相关-->
+    <string name="permission_open_app_settings">Open App Settings</string>
+    <string name="permission_calendar_status">Calendar Status</string>
+    <string name="permission_record_audio_status">Record Audio Status</string>
+    <string name="permission_calendar_and_record_audio_status">Calendar And Record Audio Status</string>
+    <string name="permission_write_settings_status">Write Settings Status</string>
+    <string name="permission_draw_overlays_status">Draw Overlays Status</string>
+
+
+    <!--Phone 相关-->
+    <string name="phone_dial">Dial</string>
+    <string name="phone_call">Call</string>
+    <string name="phone_send_sms">Send SMS</string>
+
+    <!--Process 相关-->
+    <string name="process_kill_all_background">Kill All Background Processes</string>
+
+    <!--Resource 相关-->
+    <string name="resource_copy_file_from_assets_2_cache">Copy File From Assets to Cache</string>
+    <string name="resource_copy_file_from_raw_2_cache">Copy File From Raw to Cache</string>
+
+    <!--Screen 相关-->
+    <string name="screen_screenshot">Screenshot</string>
+
+    <!--SnackBar 相关-->
+    <string name="snackbar_short">Short Snackbar</string>
+    <string name="snackbar_short_top">Short Snackbar Top</string>
+    <string name="snackbar_short_with_action">Short Snackbar With Action</string>
+    <string name="snackbar_short_with_action_top">Short Snackbar With Action Top</string>
+    <string name="snackbar_long">Long Snackbar</string>
+    <string name="snackbar_long_with_action">Long Snackbar With Action</string>
+    <string name="snackbar_indefinite">Indefinite Snackbar</string>
+    <string name="snackbar_indefinite_with_action">Indefinite Snackbar With Action</string>
+    <string name="snackbar_add_view">Add View</string>
+    <string name="snackbar_add_view_with_action">Add View With Action</string>
+    <string name="snackbar_success">Success</string>
+    <string name="snackbar_warning">Warning</string>
+    <string name="snackbar_error">Error</string>
+    <string name="snackbar_dismiss">Dismiss Snackbar</string>
+    <string name="snackbar_click">Click</string>
+    <string name="snackbar_custom_view">Custom View</string>
+    <string name="snackbar_click_to_dismiss">Click To Dismiss</string>
+
+    <!--SP 相关-->
+    <string name="sp_put_string">Put String</string>
+    <string name="sp_put_int">Put Int</string>
+    <string name="sp_put_long">Put Long</string>
+    <string name="sp_put_float">Put Float</string>
+    <string name="sp_put_boolean">Put Boolean</string>
+    <string name="sp_put_string_set">Put String Set</string>
+    <string name="sp_clear">Clear</string>
+
+    <!--Toast 相关-->
+    <string name="toast_show_short">Show Short</string>
+    <string name="toast_show_long">Show Long</string>
+    <string name="toast_show_null">Show Null</string>
+    <string name="toast_show_empty">Show Empty</string>
+    <string name="toast_show_green_font">Show Green Font</string>
+    <string name="toast_show_bg_color">Show Bg Color</string>
+    <string name="toast_show_bg_resource">Show Bg Resource</string>
+    <string name="toast_show_span">Show Span</string>
+    <string name="toast_show_left_icon">Show Left Icon</string>
+    <string name="toast_show_dark_mode">Show Dark Mode</string>
+    <string name="toast_show_long_string">Show Long String</string>
+    <string name="toast_long_string">A toast is a view containing a quick little message for the user. The ToastUtils class helps you create and show those.</string>
+    <string name="toast_show_custom_view">Show Custom View</string>
+    <string name="toast_custom_view">Custom View</string>
+    <string name="toast_show_middle">Show Middle</string>
+    <string name="toast_show_top">Show Top</string>
+    <string name="toast_cancel">Cancel</string>
+    <string name="toast_show_toast_dialog">Show Toast Dialog</string>
+    <string name="toast_show_toast_when_start_activity">Show Toast When Start Activity</string>
+    <string name="toast_short">Short</string>
+    <string name="toast_long">Long</string>
+    <string name="toast_green_font">Green Font</string>
+    <string name="toast_bg_color">Bg Color</string>
+    <string name="toast_custom_bg">Custom Bg</string>
+    <string name="toast_span">Spannable String</string>
+    <string name="toast_middle">Middle</string>
+    <string name="toast_top">Top</string>
+
+    <!--UiMessage 相关-->
+    <string name="uiMessage_add_listener_id">Add Listener Id</string>
+    <string name="uiMessage_remove_all_id">Remove All Id</string>
+    <string name="uiMessage_add_listener">Add Listener</string>
+    <string name="uiMessage_remove_listener">Remove Listener</string>
+    <string name="uiMessage_send">Send</string>
+
+    <!--Vibrate 相关-->
+    <string name="vibrate_1000ms">Vibrate 1000ms</string>
+    <string name="vibrate_custom">Vibrate Custom</string>
+    <string name="vibrate_background">Vibrate Background</string>
+    <string name="vibrate_cancel">Cancel</string>
+</resources>
diff --git a/feature/utilcode/pkg/src/main/res/values/styles.xml b/feature/utilcode/pkg/src/main/res/values/styles.xml
new file mode 100644
index 0000000000..a92300c878
--- /dev/null
+++ b/feature/utilcode/pkg/src/main/res/values/styles.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="BottomDialogAnimation">
+        <item name="android:windowEnterAnimation">@anim/slide_bottom_in_200</item>
+        <item name="android:windowExitAnimation">@anim/slide_bottom_out_200</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 1d3591c8a4..b9d5f2bcbf 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,18 +1,26 @@
 # Project-wide Gradle settings.
-
 # IDE (e.g. Android Studio) users:
 # Gradle settings configured through the IDE *will override*
 # any settings specified in this file.
-
 # For more details on how to configure your build environment visit
 # http://www.gradle.org/docs/current/userguide/build_environment.html
-
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
 # Default value: -Xmx10248m -XX:MaxPermSize=256m
 # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
-
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
\ No newline at end of file
+# org.gradle.parallel=true
+#org.gradle.jvmargs=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005
+
+android.enableJetifier=true
+android.useAndroidX=true
+
+org.gradle.jvmargs=-Xmx8192m -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -XX:-UseGCOverheadLimit -Dfile.encoding=UTF-8
+org.gradle.daemon=true
+#org.gradle.configureondemand=true
+org.gradle.parallel=true
+org.gradle.caching=true
+
+#-Dorg.gradle.debug=true --no-daemon
diff --git a/gradle/bintrayUploadAndroid.gradle b/gradle/bintrayUploadAndroid.gradle
deleted file mode 100644
index 6d9800bfbb..0000000000
--- a/gradle/bintrayUploadAndroid.gradle
+++ /dev/null
@@ -1,121 +0,0 @@
-// load properties
-Properties properties = new Properties()
-File localPropertiesFile = project.file("local.properties");
-if (localPropertiesFile.exists()) {
-    properties.load(localPropertiesFile.newDataInputStream())
-}
-File projectPropertiesFile = project.file("project.properties");
-if (projectPropertiesFile.exists()) {
-    properties.load(projectPropertiesFile.newDataInputStream())
-}
-
-// read properties
-def projectName = properties.getProperty("project.name")
-def projectGroupId = properties.getProperty("project.groupId")
-def projectArtifactId = properties.getProperty("project.artifactId")
-def projectVersionName = android.defaultConfig.versionName
-def projectPackaging = properties.getProperty("project.packaging")
-def projectSiteUrl = properties.getProperty("project.siteUrl")
-def projectGitUrl = properties.getProperty("project.gitUrl")
-
-def developerId = properties.getProperty("developer.id")
-def developerName = properties.getProperty("developer.name")
-def developerEmail = properties.getProperty("developer.email")
-
-def bintrayUser = properties.getProperty("bintray.user")
-def bintrayApikey = properties.getProperty("bintray.apikey")
-
-def javadocName = properties.getProperty("javadoc.name")
-
-group = projectGroupId
-
-// This generates POM.xml with proper parameters
-install {
-    repositories.mavenInstaller {
-        pom {
-            project {
-                name projectName
-                groupId projectGroupId
-                artifactId projectArtifactId
-                version projectVersionName
-                packaging projectPackaging
-                url projectSiteUrl
-                licenses {
-                    license {
-                        name 'The Apache Software License, Version 2.0'
-                        url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
-                    }
-                }
-                developers {
-                    developer {
-                        id developerId
-                        name developerName
-                        email developerEmail
-                    }
-                }
-                scm {
-                    connection projectGitUrl
-                    developerConnection projectGitUrl
-                    url projectSiteUrl
-                }
-            }
-        }
-    }
-}
-
-if (project.hasProperty("kotlin")) {
-    // Disable creating javadocs
-    tasks.withType(Javadoc) {
-        enabled = false
-    }
-}
-
-// This generates sources.jar
-task sourcesJar(type: Jar) {
-    from android.sourceSets.main.java.srcDirs
-    classifier = 'sources'
-}
-
-task javadoc(type: Javadoc) {
-    source = android.sourceSets.main.java.srcDirs
-    classpath += configurations.compile
-    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
-}
-
-// This generates javadoc.jar
-task javadocJar(type: Jar, dependsOn: javadoc) {
-    classifier = 'javadoc'
-    from javadoc.destinationDir
-}
-
-artifacts {
-    archives javadocJar
-    archives sourcesJar
-}
-
-// javadoc configuration
-javadoc {
-    options {
-        encoding "UTF-8"
-        charSet 'UTF-8'
-        author true
-        version projectVersionName
-        links "http://docs.oracle.com/javase/7/docs/api"
-        title javadocName
-    }
-}
-
-// bintray configuration
-bintray {
-    user = bintrayUser
-    key = bintrayApikey
-    configurations = ['archives']
-    pkg {
-        repo = "maven"
-        name = projectName
-        websiteUrl = projectSiteUrl
-        vcsUrl = projectGitUrl
-        licenses = ["Apache-2.0"]
-        publish = true
-    }
-}
\ No newline at end of file
diff --git a/gradle/bintrayUploadJava.gradle b/gradle/bintrayUploadJava.gradle
deleted file mode 100755
index ba9440a3e0..0000000000
--- a/gradle/bintrayUploadJava.gradle
+++ /dev/null
@@ -1,79 +0,0 @@
-// load properties
-Properties properties = new Properties()
-File localPropertiesFile = project.file("local.properties");
-if (localPropertiesFile.exists()) {
-    properties.load(localPropertiesFile.newDataInputStream())
-}
-File projectPropertiesFile = project.file("project.properties");
-if (projectPropertiesFile.exists()) {
-    properties.load(projectPropertiesFile.newDataInputStream())
-}
-
-// read properties
-def projectName = properties.getProperty("project.name")
-def projectGroupId = properties.getProperty("project.groupId")
-def projectSiteUrl = properties.getProperty("project.siteUrl")
-def projectGitUrl = properties.getProperty("project.gitUrl")
-
-def developerId = properties.getProperty("developer.id")
-def developerName = properties.getProperty("developer.name")
-def developerEmail = properties.getProperty("developer.email")
-
-def bintrayUser = properties.getProperty("bintray.user")
-def bintrayApikey = properties.getProperty("bintray.apikey")
-
-def javadocName = properties.getProperty("javadoc.name")
-
-// This generates POM.xml with proper parameters
-install.repositories.mavenInstaller.pom.project {
-    name projectName
-    url projectSiteUrl
-    licenses {
-        license {
-            name 'The Apache Software License, Version 2.0'
-            url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
-        }
-    }
-    developers {
-        developer {
-            id developerId
-            name developerName
-            email developerEmail
-        }
-    }
-    scm {
-        connection projectGitUrl
-        developerConnection projectGitUrl
-        url projectSiteUrl
-    }
-}
-
-task sourcesJar(type: Jar, dependsOn: classes) {
-    classifier = 'sources'
-    from sourceSets.main.allSource
-}
-
-task javadocJar(type: Jar, dependsOn: javadoc) {
-    classifier = 'javadoc'
-    from javadoc.destinationDir
-}
-
-artifacts {
-    archives sourcesJar
-    archives javadocJar
-}
-
-// bintray configuration
-bintray {
-    user = bintrayUser
-    key = bintrayApikey
-    configurations = ['archives']
-    pkg {
-        repo = "maven"
-        name = projectName
-        websiteUrl = projectSiteUrl
-        vcsUrl = projectGitUrl
-        licenses = ["Apache-2.0"]
-        publish = true
-    }
-}
\ No newline at end of file
diff --git a/gradle/localMavenUpload.gradle b/gradle/localMavenUpload.gradle
deleted file mode 100755
index a7b4143b68..0000000000
--- a/gradle/localMavenUpload.gradle
+++ /dev/null
@@ -1,7 +0,0 @@
-uploadArchives {
-    repositories {
-        mavenDeployer {
-            repository(url: uri(new File(project.rootDir, "maven")))
-        }
-    }
-}
\ No newline at end of file
diff --git a/gradle/pluginPublish.gradle b/gradle/pluginPublish.gradle
deleted file mode 100755
index 01d6326be6..0000000000
--- a/gradle/pluginPublish.gradle
+++ /dev/null
@@ -1,13 +0,0 @@
-pluginBundle {
-    website = 'https://github.com/Blankj/StaticBus'
-    vcsUrl = 'https://github.com/Blankj/StaticBus.git'
-    description = 'A static bus use in modules.'
-    tags = ['gradle', 'plugin', 'static', 'bus', 'javassist']
-
-    plugins {
-        busPlugin {
-            // id is captured from java-gradle-plugin configuration
-            displayName = 'Gradle Bus plugin'
-        }
-    }
-}
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 13372aef5e..5c2d1cf016 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index c502e7df60..1e0ae1a108 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Sep 25 11:43:49 CST 2018
+#Mon May 06 10:07:23 CST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
diff --git a/gradlew b/gradlew
index 9d82f78915..b0d6d0ab5d 100755
--- a/gradlew
+++ b/gradlew
@@ -1,4 +1,20 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 
 ##############################################################################
 ##
@@ -6,20 +22,38 @@
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
 
 APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -30,6 +64,7 @@ die ( ) {
 cygwin=false
 msys=false
 darwin=false
+nonstop=false
 case "`uname`" in
   CYGWIN* )
     cygwin=true
@@ -40,26 +75,11 @@ case "`uname`" in
   MINGW* )
     msys=true
     ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
 esac
 
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
-done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
-
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 # Determine the Java command to use to start the JVM.
@@ -85,7 +105,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
     MAX_FD_LIMIT=`ulimit -H -n`
     if [ $? -eq 0 ] ; then
         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -150,11 +170,19 @@ if $cygwin ; then
     esac
 fi
 
-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
-function splitJvmOpts() {
-    JVM_OPTS=("$@")
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
index 8a0b282aa6..15e1ee37a7 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -1,90 +1,100 @@
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto init
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windowz variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/launcher/app/build.gradle b/launcher/app/build.gradle
deleted file mode 100644
index 610a406814..0000000000
--- a/launcher/app/build.gradle
+++ /dev/null
@@ -1,14 +0,0 @@
-plugins {
-    id "com.android.application"
-    id 'kotlin-android'
-    id 'kotlin-android-extensions'
-    id "com.blankj.bus"
-}
-
-// in config.gradle
-configAndroidDomain project
-
-dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation project(':launcher-pkg')
-}
\ No newline at end of file
diff --git a/launcher/app/src/main/AndroidManifest.xml b/launcher/app/src/main/AndroidManifest.xml
deleted file mode 100644
index a957a51ba4..0000000000
--- a/launcher/app/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.launcher">
-
-</manifest>
\ No newline at end of file
diff --git a/launcher/app/src/main/java/com/blankj/launcher/MainActivity.kt b/launcher/app/src/main/java/com/blankj/launcher/MainActivity.kt
deleted file mode 100644
index 07b1602af9..0000000000
--- a/launcher/app/src/main/java/com/blankj/launcher/MainActivity.kt
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.blankj.launcher
-
-import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
-
-class MainActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
-    }
-}
diff --git a/launcher/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/launcher/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
deleted file mode 100644
index 1f6bb29060..0000000000
--- a/launcher/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:aapt="http://schemas.android.com/aapt"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path
-        android:fillType="evenOdd"
-        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
-        android:strokeWidth="1"
-        android:strokeColor="#00000000">
-        <aapt:attr name="android:fillColor">
-            <gradient
-                android:endX="78.5885"
-                android:endY="90.9159"
-                android:startX="48.7653"
-                android:startY="61.0927"
-                android:type="linear">
-                <item
-                    android:color="#44000000"
-                    android:offset="0.0" />
-                <item
-                    android:color="#00000000"
-                    android:offset="1.0" />
-            </gradient>
-        </aapt:attr>
-    </path>
-    <path
-        android:fillColor="#FFFFFF"
-        android:fillType="nonZero"
-        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
-        android:strokeWidth="1"
-        android:strokeColor="#00000000" />
-</vector>
diff --git a/launcher/app/src/main/res/drawable/ic_launcher_background.xml b/launcher/app/src/main/res/drawable/ic_launcher_background.xml
deleted file mode 100644
index 80da565bbc..0000000000
--- a/launcher/app/src/main/res/drawable/ic_launcher_background.xml
+++ /dev/null
@@ -1,171 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path
-        android:fillColor="#008577"
-        android:pathData="M0,0h108v108h-108z" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M9,0L9,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,0L19,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M29,0L29,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M39,0L39,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M49,0L49,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M59,0L59,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M69,0L69,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M79,0L79,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M89,0L89,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M99,0L99,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,9L108,9"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,19L108,19"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,29L108,29"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,39L108,39"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,49L108,49"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,59L108,59"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,69L108,69"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,79L108,79"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,89L108,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,99L108,99"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,29L89,29"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,39L89,39"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,49L89,49"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,59L89,59"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,69L89,69"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,79L89,79"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M29,19L29,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M39,19L39,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M49,19L49,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M59,19L59,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M69,19L69,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M79,19L79,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-</vector>
diff --git a/launcher/app/src/main/res/layout/activity_main.xml b/launcher/app/src/main/res/layout/activity_main.xml
deleted file mode 100644
index 4207ef3c77..0000000000
--- a/launcher/app/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".pkg.MainActivity">
-
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-</android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/launcher/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/launcher/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
deleted file mode 100644
index eca70cfe52..0000000000
--- a/launcher/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/launcher/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/launcher/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
deleted file mode 100644
index eca70cfe52..0000000000
--- a/launcher/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/launcher/app/src/main/res/mipmap-hdpi/ic_launcher.png b/launcher/app/src/main/res/mipmap-hdpi/ic_launcher.png
deleted file mode 100644
index 898f3ed59a..0000000000
Binary files a/launcher/app/src/main/res/mipmap-hdpi/ic_launcher.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/launcher/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
deleted file mode 100644
index dffca3601e..0000000000
Binary files a/launcher/app/src/main/res/mipmap-hdpi/ic_launcher_round.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-mdpi/ic_launcher.png b/launcher/app/src/main/res/mipmap-mdpi/ic_launcher.png
deleted file mode 100644
index 64ba76f75e..0000000000
Binary files a/launcher/app/src/main/res/mipmap-mdpi/ic_launcher.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/launcher/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
deleted file mode 100644
index dae5e08234..0000000000
Binary files a/launcher/app/src/main/res/mipmap-mdpi/ic_launcher_round.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/launcher/app/src/main/res/mipmap-xhdpi/ic_launcher.png
deleted file mode 100644
index e5ed46597e..0000000000
Binary files a/launcher/app/src/main/res/mipmap-xhdpi/ic_launcher.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/launcher/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
deleted file mode 100644
index 14ed0af350..0000000000
Binary files a/launcher/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/launcher/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
deleted file mode 100644
index b0907cac3b..0000000000
Binary files a/launcher/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/launcher/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
deleted file mode 100644
index d8ae031549..0000000000
Binary files a/launcher/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/launcher/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
deleted file mode 100644
index 2c18de9e66..0000000000
Binary files a/launcher/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and /dev/null differ
diff --git a/launcher/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/launcher/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
deleted file mode 100644
index beed3cdd2c..0000000000
Binary files a/launcher/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png and /dev/null differ
diff --git a/launcher/app/src/main/res/values/colors.xml b/launcher/app/src/main/res/values/colors.xml
deleted file mode 100644
index 69b22338c6..0000000000
--- a/launcher/app/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="colorPrimary">#008577</color>
-    <color name="colorPrimaryDark">#00574B</color>
-    <color name="colorAccent">#D81B60</color>
-</resources>
diff --git a/launcher/app/src/main/res/values/strings.xml b/launcher/app/src/main/res/values/strings.xml
deleted file mode 100644
index f11f7450a8..0000000000
--- a/launcher/app/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-
-</resources>
diff --git a/launcher/app/src/main/res/values/styles.xml b/launcher/app/src/main/res/values/styles.xml
deleted file mode 100644
index 5885930df6..0000000000
--- a/launcher/app/src/main/res/values/styles.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-    </style>
-
-</resources>
diff --git a/launcher/pkg/build.gradle b/launcher/pkg/build.gradle
deleted file mode 100644
index 506c18f2be..0000000000
--- a/launcher/pkg/build.gradle
+++ /dev/null
@@ -1,14 +0,0 @@
-plugins {
-    id "com.android.library"
-    id 'kotlin-android'
-    id 'kotlin-android-extensions'
-//    id "com.blankj.bus"
-}
-
-// in config.gradle
-configAndroidDomain project
-
-dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation project(':lib-base')
-}
\ No newline at end of file
diff --git a/launcher/pkg/src/main/AndroidManifest.xml b/launcher/pkg/src/main/AndroidManifest.xml
deleted file mode 100644
index 67d6ef6054..0000000000
--- a/launcher/pkg/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,70 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.launcher.pkg">
-
-    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
-    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
-
-    <!-- bar -->
-    <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />
-
-    <!-- 读写内存 -->
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-
-    <!-- network -->
-    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
-    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
-    <uses-permission android:name="android.permission.INTERNET" />
-
-    <!-- permission -->
-    <uses-permission android:name="android.permission.READ_CALENDAR" />
-    <uses-permission android:name="android.permission.RECORD_AUDIO" />
-
-    <!-- phone -->
-    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-    <uses-permission android:name="android.permission.CALL_PHONE" />
-    <uses-permission android:name="android.permission.SEND_SMS" />
-    <uses-permission android:name="android.permission.READ_SMS" />
-    <uses-permission android:name="android.permission.READ_CONTACTS" />
-
-    <!-- process -->
-    <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />
-
-    <!-- screen -->
-    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
-
-    <!-- flashlight -->
-    <uses-permission android:name="android.permission.CAMERA" />
-    <uses-permission android:name="android.permission.FLASHLIGHT" />
-
-    <!-- location -->
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-
-    <application
-        android:name=".UtilsApp"
-        android:allowBackup="false"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:theme="@style/AppTheme">
-        <activity
-            android:name=".SplashActivity"
-            android:screenOrientation="user"
-            android:windowSoftInputMode="stateHidden|adjustPan">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-
-        <activity
-            android:name=".MainActivity"
-            android:screenOrientation="user"
-            android:windowSoftInputMode="stateHidden|adjustPan" />
-    </application>
-
-</manifest>
diff --git a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.java b/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.java
deleted file mode 100644
index 74aa97f7aa..0000000000
--- a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/MainActivity.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.blankj.launcher.pkg;
-
-import android.graphics.Color;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.design.widget.CollapsingToolbarLayout;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.widget.Toolbar;
-import android.view.View;
-
-import com.blankj.base.BaseDrawerActivity;
-import com.blankj.pkg.R;
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.BusUtils;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : MainActivity
- * </pre>
- */
-public class MainActivity extends BaseDrawerActivity {
-
-    @Override
-    public void initData(@Nullable Bundle bundle) {
-
-    }
-
-    @Override
-    public int bindLayout() {
-        return R.layout.activity_main;
-    }
-
-    @Override
-    public void initView(Bundle savedInstanceState, View contentView) {
-        Toolbar toolbar = findViewById(R.id.toolbar);
-        View fakeStatusBar = findViewById(R.id.fake_status_bar);
-        CollapsingToolbarLayout ctl = findViewById(R.id.ctl);
-        ctl.setExpandedTitleColor(Color.TRANSPARENT);
-        setSupportActionBar(toolbar);
-        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this,
-                rootLayout,
-                toolbar,
-                R.string.navigation_drawer_open,
-                R.string.navigation_drawer_close);
-        rootLayout.addDrawerListener(toggle);
-        toggle.syncState();
-
-        BarUtils.setStatusBarAlpha4Drawer(this, rootLayout, fakeStatusBar, 0, false);
-        BarUtils.addMarginTopEqualStatusBarHeight(toolbar);
-    }
-
-    @Override
-    public void doBusiness() {
-
-    }
-
-    @Override
-    public void onWidgetClick(View view) {
-
-    }
-
-    public void coreUtilClick(View view) {
-        BusUtils.post("CoreUtilActivity#start", this);
-    }
-
-    public void subUtilClick(View view) {
-        BusUtils.post("SubUtilActivity#start", this);
-    }
-}
diff --git a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/SplashActivity.kt b/launcher/pkg/src/main/java/com/blankj/launcher/pkg/SplashActivity.kt
deleted file mode 100644
index ec0f12864f..0000000000
--- a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/SplashActivity.kt
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.blankj.launcher.pkg
-
-import android.os.Bundle
-import android.view.View
-import com.blankj.base.BaseActivity
-
-class SplashActivity : BaseActivity() {
-
-    override fun initData(bundle: Bundle?) {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun bindLayout(): Int {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun initView(savedInstanceState: Bundle?, contentView: View?) {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun doBusiness() {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun onWidgetClick(view: View?) {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-}
\ No newline at end of file
diff --git a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/UtilsApp.java b/launcher/pkg/src/main/java/com/blankj/launcher/pkg/UtilsApp.java
deleted file mode 100644
index 5d2ba777c8..0000000000
--- a/launcher/pkg/src/main/java/com/blankj/launcher/pkg/UtilsApp.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.blankj.launcher.pkg;
-
-import android.content.Context;
-
-import com.blankj.base.BaseApplication;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/12
- *     desc  : app about utils
- * </pre>
- */
-public class UtilsApp extends BaseApplication {
-
-    private static UtilsApp sInstance;
-
-    public static UtilsApp getInstance() {
-        return sInstance;
-    }
-
-    @Override
-    protected void attachBaseContext(Context base) {
-        super.attachBaseContext(base);
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        sInstance = this;
-    }
-}
-
-
diff --git a/launcher/pkg/src/main/res/layout/activity_main.xml b/launcher/pkg/src/main/res/layout/activity_main.xml
deleted file mode 100644
index 55478c0d0c..0000000000
--- a/launcher/pkg/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <android.support.design.widget.AppBarLayout
-        android:layout_width="match_parent"
-        android:layout_height="192dp"
-        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
-
-        <android.support.design.widget.CollapsingToolbarLayout
-            android:id="@+id/ctl"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:contentScrim="@color/colorPrimary"
-            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
-
-            <ImageView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:padding="@dimen/spacing_16"
-                android:scaleType="fitCenter"
-                android:src="@mipmap/ic_launcher"
-                app:layout_collapseMode="parallax"
-                app:layout_collapseParallaxMultiplier="0.6" />
-
-            <android.support.v7.widget.Toolbar
-                android:id="@+id/toolbar"
-                android:layout_width="match_parent"
-                android:layout_height="?attr/actionBarSize"
-                app:layout_collapseMode="pin" />
-
-        </android.support.design.widget.CollapsingToolbarLayout>
-    </android.support.design.widget.AppBarLayout>
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <android.support.v4.widget.NestedScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center_horizontal"
-            android:orientation="vertical"
-            android:paddingLeft="@dimen/spacing_16"
-            android:paddingRight="@dimen/spacing_16">
-
-            <Button
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:onClick="coreUtilClick"
-                android:text="@string/core_util" />
-
-            <Button
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:onClick="subUtilClick"
-                android:text="@string/sub_util" />
-
-        </LinearLayout>
-    </android.support.v4.widget.NestedScrollView>
-</android.support.design.widget.CoordinatorLayout>
diff --git a/launcher/pkg/src/main/res/values/strings.xml b/launcher/pkg/src/main/res/values/strings.xml
deleted file mode 100644
index 71fd87f848..0000000000
--- a/launcher/pkg/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <string name="app_name">pkg</string>
-</resources>
diff --git a/lib/base/build.gradle b/lib/base/build.gradle
index beda46165b..b7eb9d588c 100644
--- a/lib/base/build.gradle
+++ b/lib/base/build.gradle
@@ -1,21 +1,14 @@
-apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
-
-// in config.gradle
-configAndroidDomain project
-
 dependencies {
-    implementation fileTree(include: ['*.jar'], dir: 'libs')
-    api project(':lib-resource')
-    api project(':utilcode-lib')
-    api project(':subutil-lib')
+    api Config.modules.lib_subutil.dep
+    api Config.modules.lib_utilcode.dep
 
-    api dep.support.appcompat_v7
-    api dep.support.design
-    api dep.support.multidex
-    api dep.constraint
-    api dep.kotlin
-    api dep.free_proguard
-    api 'com.r0adkll:slidableactivity:2.0.5'
-    compileOnly dep.leakcanary.android_no_op
+    api Config.libs.androidx_appcompat.path
+    api Config.libs.androidx_material.path
+    api Config.libs.androidx_multidex.path
+    api Config.libs.androidx_constraint.path
+    api Config.libs.kotlin.path
+    api Config.libs.free_proguard.path
+    api Config.libs.swipe_panel.path
+    api Config.libs.eventbus_lib.path
+    compileOnly Config.modules.lib_utildebug_no_op.dep
 }
\ No newline at end of file
diff --git a/lib/base/src/main/AndroidManifest.xml b/lib/base/src/main/AndroidManifest.xml
index ae7f3a5385..3744b24f38 100644
--- a/lib/base/src/main/AndroidManifest.xml
+++ b/lib/base/src/main/AndroidManifest.xml
@@ -1 +1,6 @@
-<manifest package="com.blankj.base" />
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.base">
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+</manifest>
\ No newline at end of file
diff --git a/lib/base/src/main/java/com/blankj/base/BaseActivity.java b/lib/base/src/main/java/com/blankj/base/BaseActivity.java
index f1111d1879..c0348203f8 100644
--- a/lib/base/src/main/java/com/blankj/base/BaseActivity.java
+++ b/lib/base/src/main/java/com/blankj/base/BaseActivity.java
@@ -1,13 +1,15 @@
 package com.blankj.base;
 
-import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.os.Bundle;
-import android.support.annotation.LayoutRes;
-import android.support.v7.app.AppCompatActivity;
 import android.view.LayoutInflater;
 import android.view.View;
 
+import androidx.annotation.LayoutRes;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.blankj.utilcode.util.ClickUtils;
+
 /**
  * <pre>
  *     author: Blankj
@@ -19,47 +21,36 @@
 public abstract class BaseActivity extends AppCompatActivity
         implements IBaseView {
 
-    protected View     mContentView;
-    protected Activity mActivity;
+    private View.OnClickListener mClickListener = new View.OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            onDebouncingClick(v);
+        }
+    };
 
-    /**
-     * 上次点击时间
-     */
-    private long lastClick = 0;
+    public View     mContentView;
+    public Activity mActivity;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
         mActivity = this;
-        Bundle bundle = getIntent().getExtras();
-        initData(bundle);
-        setBaseView(bindLayout());
+        super.onCreate(savedInstanceState);
+        initData(getIntent().getExtras());
+        setContentView();
         initView(savedInstanceState, mContentView);
         doBusiness();
     }
 
-    @SuppressLint("ResourceType")
-    protected void setBaseView(@LayoutRes int layoutId) {
-        if (layoutId <= 0) return;
-        setContentView(mContentView = LayoutInflater.from(this).inflate(layoutId, null));
-    }
-
-    /**
-     * 判断是否快速点击
-     *
-     * @return {@code true}: 是<br>{@code false}: 否
-     */
-    private boolean isFastClick() {
-        long now = System.currentTimeMillis();
-        if (now - lastClick >= 200) {
-            lastClick = now;
-            return false;
-        }
-        return true;
+    @Override
+    public void setContentView() {
+        if (bindLayout() <= 0) return;
+        mContentView = LayoutInflater.from(this).inflate(bindLayout(), null);
+        setContentView(mContentView);
     }
 
-    @Override
-    public void onClick(final View view) {
-        if (!isFastClick()) onWidgetClick(view);
+    public void applyDebouncingClickListener(View... views) {
+        ClickUtils.applyGlobalDebouncing(views, mClickListener);
+        ClickUtils.applyPressedViewScale(views);
     }
 }
+
diff --git a/lib/base/src/main/java/com/blankj/base/BaseApplication.java b/lib/base/src/main/java/com/blankj/base/BaseApplication.java
index 1bdd404191..f1fd6186c0 100644
--- a/lib/base/src/main/java/com/blankj/base/BaseApplication.java
+++ b/lib/base/src/main/java/com/blankj/base/BaseApplication.java
@@ -1,18 +1,16 @@
 package com.blankj.base;
 
-import android.annotation.SuppressLint;
-import android.app.Activity;
 import android.app.Application;
 import android.content.Context;
-import android.os.Bundle;
-import android.support.multidex.MultiDex;
-import android.support.multidex.MultiDexApplication;
-import android.util.Log;
+
+import androidx.multidex.MultiDex;
 
 import com.blankj.utilcode.util.AppUtils;
 import com.blankj.utilcode.util.CrashUtils;
 import com.blankj.utilcode.util.LogUtils;
-import com.squareup.leakcanary.LeakCanary;
+import com.blankj.utilcode.util.ProcessUtils;
+import com.blankj.utildebug.DebugUtils;
+import com.blankj.utildebug.debug.IDebug;
 
 import java.util.ArrayList;
 
@@ -20,13 +18,11 @@
  * <pre>
  *     author: Blankj
  *     blog  : http://blankj.com
- *     time  : 2017/03/30
+ *     time  : 2018/11/16
  *     desc  : base about application
  * </pre>
  */
-public class BaseApplication extends MultiDexApplication {
-
-    private static final String TAG = "BaseApplication";
+public class BaseApplication extends Application {
 
     private static BaseApplication sInstance;
 
@@ -34,8 +30,10 @@ public static BaseApplication getInstance() {
         return sInstance;
     }
 
-    protected final boolean isDebug = AppUtils.isAppDebug();
+    private Boolean isDebug;
+    private Boolean isMainProcess;
 
+    @Override
     protected void attachBaseContext(Context base) {
         super.attachBaseContext(base);
         MultiDex.install(this);
@@ -45,35 +43,24 @@ protected void attachBaseContext(Context base) {
     public void onCreate() {
         super.onCreate();
         sInstance = this;
-        initLeakCanary();
         initLog();
         initCrash();
-    }
-
-    private void initLeakCanary() {
-        // 内存泄露检查工具
-        if (isDebug) {
-            if (LeakCanary.isInAnalyzerProcess(this)) {
-                // This process is dedicated to LeakCanary for heap analysis.
-                // You should not init your app in this process.
-                return;
-            }
-            LeakCanary.install(this);
-        }
+        initDebugMenu();
     }
 
     // init it in ur application
     public void initLog() {
-        final LogUtils.Config config = LogUtils.getConfig()
-                .setLogSwitch(isDebug)// 设置 log 总开关，包括输出到控制台和文件，默认开
-                .setConsoleSwitch(isDebug)// 设置是否输出到控制台开关，默认开
+        LogUtils.Config config = LogUtils.getConfig()
+                .setLogSwitch(isDebug())// 设置 log 总开关，包括输出到控制台和文件，默认开
+                .setConsoleSwitch(isDebug())// 设置是否输出到控制台开关，默认开
                 .setGlobalTag(null)// 设置 log 全局标签，默认为空
                 // 当全局标签不为空时，我们输出的 log 全部为该 tag，
                 // 为空时，如果传入的 tag 为空那就显示类名，否则显示 tag
                 .setLogHeadSwitch(true)// 设置 log 头信息开关，默认为开
                 .setLog2FileSwitch(false)// 打印 log 时是否存到文件的开关，默认关
                 .setDir("")// 当自定义路径为空时，写入应用的/cache/log/目录中
-                .setFilePrefix("")// 当文件前缀为空时，默认为"util"，即写入文件为"util-yyyy-MM-dd.txt"
+                .setFilePrefix("")// 当文件前缀为空时，默认为"util"，即写入文件为"util-yyyy-MM-dd$fileExtension"
+                .setFileExtension(".log")// 设置日志文件后缀
                 .setBorderSwitch(true)// 输出日志是否带边框开关，默认开
                 .setSingleTagSwitch(true)// 一条日志仅输出一条，默认开，为美化 AS 3.1 的 Logcat
                 .setConsoleFilter(LogUtils.V)// log 的控制台过滤器，和 logcat 过滤器同理，默认 Verbose
@@ -84,21 +71,36 @@ public void initLog() {
                 // 新增 ArrayList 格式化器，默认已支持 Array, Throwable, Bundle, Intent 的格式化输出
                 .addFormatter(new LogUtils.IFormatter<ArrayList>() {
                     @Override
-                    public String format(ArrayList list) {
-                        return "LogUtils Formatter ArrayList { " + list.toString() + " }";
+                    public String format(ArrayList arrayList) {
+                        return "LogUtils Formatter ArrayList { " + arrayList.toString() + " }";
                     }
-                });
-        LogUtils.d(config.toString());
+                })
+                .addFileExtraHead("ExtraKey", "ExtraValue");
+        LogUtils.i(config.toString());
     }
 
-    @SuppressLint("MissingPermission")
     private void initCrash() {
         CrashUtils.init(new CrashUtils.OnCrashListener() {
             @Override
-            public void onCrash(String crashInfo, Throwable e) {
-                LogUtils.e(crashInfo);
+            public void onCrash(CrashUtils.CrashInfo crashInfo) {
+                crashInfo.addExtraHead("extraKey", "extraValue");
+                LogUtils.e(crashInfo.toString());
                 AppUtils.relaunchApp();
             }
         });
     }
+
+    private void initDebugMenu() {
+        DebugUtils.addDebugs(new ArrayList<IDebug>());
+    }
+
+    private boolean isDebug() {
+        if (isDebug == null) isDebug = AppUtils.isAppDebug();
+        return isDebug;
+    }
+
+    public boolean isMainProcess() {
+        if (isMainProcess == null) isMainProcess = ProcessUtils.isMainProcess();
+        return isMainProcess;
+    }
 }
diff --git a/lib/base/src/main/java/com/blankj/base/BaseBackActivity.java b/lib/base/src/main/java/com/blankj/base/BaseBackActivity.java
deleted file mode 100644
index e87bebe385..0000000000
--- a/lib/base/src/main/java/com/blankj/base/BaseBackActivity.java
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.blankj.base;
-
-import android.annotation.SuppressLint;
-import android.support.annotation.LayoutRes;
-import android.support.design.widget.AppBarLayout;
-import android.support.design.widget.CoordinatorLayout;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.app.ActionBar;
-import android.support.v7.widget.Toolbar;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.widget.FrameLayout;
-
-import com.blankj.utilcode.util.BarUtils;
-import com.blankj.utilcode.util.Utils;
-import com.r0adkll.slidr.Slidr;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/06/27
- *     desc  : base about back activity
- * </pre>
- */
-public abstract class BaseBackActivity extends BaseActivity {
-
-    protected CoordinatorLayout rootLayout;
-    protected Toolbar           mToolbar;
-    protected AppBarLayout      abl;
-    protected FrameLayout       flActivityContainer;
-
-    @SuppressLint("ResourceType")
-    @Override
-    protected void setBaseView(@LayoutRes int layoutId) {
-        Slidr.attach(this);
-        mContentView = LayoutInflater.from(this).inflate(R.layout.activity_back, null);
-        setContentView(mContentView);
-        rootLayout = findViewById(R.id.root_layout);
-        abl = findViewById(R.id.abl);
-        mToolbar = findViewById(R.id.toolbar);
-        flActivityContainer = findViewById(R.id.activity_container);
-        if (layoutId > 0) {
-            flActivityContainer.addView(LayoutInflater.from(this).inflate(layoutId, flActivityContainer, false));
-        }
-        setSupportActionBar(mToolbar);
-        getToolBar().setDisplayHomeAsUpEnabled(true);
-
-        BarUtils.setStatusBarColor(this, ContextCompat.getColor(Utils.getApp(), R.color.colorPrimary), 0);
-        BarUtils.addMarginTopEqualStatusBarHeight(rootLayout);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        if (item.getItemId() == android.R.id.home) {
-            finish();
-        }
-        return super.onOptionsItemSelected(item);
-    }
-
-    protected ActionBar getToolBar() {
-        return getSupportActionBar();
-    }
-}
diff --git a/lib/base/src/main/java/com/blankj/base/BaseDrawerActivity.java b/lib/base/src/main/java/com/blankj/base/BaseDrawerActivity.java
deleted file mode 100644
index 86ce02626a..0000000000
--- a/lib/base/src/main/java/com/blankj/base/BaseDrawerActivity.java
+++ /dev/null
@@ -1,57 +0,0 @@
-package com.blankj.base;
-
-import android.content.Intent;
-import android.net.Uri;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.design.widget.NavigationView;
-import android.support.v4.widget.DrawerLayout;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.widget.FrameLayout;
-
-import com.blankj.utilcode.util.ActivityUtils;
-import com.blankj.utilcode.util.StringUtils;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/06/27
- *     desc  : base about drawer activity
- * </pre>
- */
-public abstract class BaseDrawerActivity extends BaseActivity {
-
-    protected DrawerLayout rootLayout;
-    protected FrameLayout  flActivityContainer;
-
-    NavigationView.OnNavigationItemSelectedListener mListener = new NavigationView.OnNavigationItemSelectedListener() {
-        @Override
-        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
-            int i = item.getItemId();
-            if (i == R.id.action_git_hub) {
-                ActivityUtils.startActivity(
-                        new Intent(Intent.ACTION_VIEW, Uri.parse(StringUtils.getString(R.string.github)))
-                );
-            } else if (i == R.id.action_blog) {
-                ActivityUtils.startActivity(
-                        new Intent(Intent.ACTION_VIEW, Uri.parse(StringUtils.getString(R.string.blog)))
-                );
-            }
-            return false;
-        }
-    };
-
-    @Override
-    protected void setBaseView(@LayoutRes int layoutId) {
-        mContentView = LayoutInflater.from(this).inflate(R.layout.activity_drawer, null);
-        setContentView(mContentView);
-        rootLayout = findViewById(R.id.root_layout);
-        flActivityContainer = findViewById(R.id.activity_container);
-        flActivityContainer.addView(LayoutInflater.from(this).inflate(layoutId, flActivityContainer, false));
-        NavigationView navigationView = findViewById(R.id.nav_view);
-        navigationView.setNavigationItemSelectedListener(mListener);
-    }
-}
diff --git a/lib/base/src/main/java/com/blankj/base/BaseFragment.java b/lib/base/src/main/java/com/blankj/base/BaseFragment.java
index a66f751065..ab2b8877fe 100644
--- a/lib/base/src/main/java/com/blankj/base/BaseFragment.java
+++ b/lib/base/src/main/java/com/blankj/base/BaseFragment.java
@@ -1,19 +1,23 @@
 package com.blankj.base;
 
-import android.annotation.SuppressLint;
-import android.app.Activity;
+import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.IdRes;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentTransaction;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.ClickUtils;
+
+import androidx.annotation.IdRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
+
 /**
  * <pre>
  *     author: Blankj
@@ -25,98 +29,148 @@
 public abstract class BaseFragment extends Fragment
         implements IBaseView {
 
-    private static final String TAG                  = "BaseFragment";
+    private static Boolean isDebug;
+
     private static final String STATE_SAVE_IS_HIDDEN = "STATE_SAVE_IS_HIDDEN";
 
-    protected View     mContentView;
-    protected Activity mActivity;
+    private View.OnClickListener mClickListener = new View.OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            onDebouncingClick(v);
+        }
+    };
+
+    protected AppCompatActivity mActivity;
+    protected LayoutInflater    mInflater;
+    protected View              mContentView;
 
-    private long lastClick = 0;
+    protected boolean mIsVisibleToUser;
+    protected boolean mIsBusinessDone;
+    protected boolean mIsInPager;
+
+    /**
+     * @return true true {@link #doBusiness()} will lazy in view pager, false otherwise
+     */
+    public boolean isLazy() {
+        return false;
+    }
+
+    @Override
+    public void setUserVisibleHint(boolean isVisibleToUser) {
+        log("setUserVisibleHint: " + isVisibleToUser);
+        super.setUserVisibleHint(isVisibleToUser);
+        mIsInPager = true;
+        if (isVisibleToUser) mIsVisibleToUser = true;
+        if (isLazy()) {
+            if (!mIsBusinessDone && isVisibleToUser && mContentView != null) {
+                mIsBusinessDone = true;
+                doBusiness();
+            }
+        }
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        log("onAttach");
+        super.onAttach(context);
+        mActivity = (AppCompatActivity) context;
+    }
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onCreate: ");
+        log("onCreate");
         super.onCreate(savedInstanceState);
+        FragmentManager fm = getFragmentManager();
+        if (fm == null) return;
         if (savedInstanceState != null) {
             boolean isSupportHidden = savedInstanceState.getBoolean(STATE_SAVE_IS_HIDDEN);
-            FragmentTransaction ft = getFragmentManager().beginTransaction();
+            FragmentTransaction ft = fm.beginTransaction();
             if (isSupportHidden) {
                 ft.hide(this);
             } else {
                 ft.show(this);
             }
-            ft.commitAllowingStateLoss();
+            ft.commitNowAllowingStateLoss();
         }
+        Bundle bundle = getArguments();
+        initData(bundle);
     }
 
     @Nullable
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onCreateView: ");
-        setBaseView(inflater, bindLayout());
+        log("onCreateView");
+        super.onCreateView(inflater, container, savedInstanceState);
+        mInflater = inflater;
+        setContentView();
         return mContentView;
     }
 
-    protected void setBaseView(@NonNull LayoutInflater inflater, int layoutId) {
-        if (layoutId <= 0) return;
-        mContentView = inflater.inflate(layoutId, null);
+    @Override
+    public void setContentView() {
+        if (bindLayout() <= 0) return;
+        mContentView = mInflater.inflate(bindLayout(), null);
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onViewCreated: ");
+        log("onViewCreated");
         super.onViewCreated(view, savedInstanceState);
-        Bundle bundle = getArguments();
-        initData(bundle);
     }
 
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        Log.d(TAG, "onActivityCreated: ");
+        log("onActivityCreated");
         super.onActivityCreated(savedInstanceState);
-        mActivity = getActivity();
         initView(savedInstanceState, mContentView);
-        doBusiness();
+        if (!mIsInPager || !isLazy() || mIsVisibleToUser) {
+            mIsBusinessDone = true;
+            doBusiness();
+        }
     }
 
     @Override
-    public void onDestroyView() {
-        Log.d(TAG, "onDestroyView: ");
-        if (mContentView != null) {
-            ((ViewGroup) mContentView.getParent()).removeView(mContentView);
-        }
-        super.onDestroyView();
+    public void onHiddenChanged(boolean hidden) {
+        log("onHiddenChanged: " + hidden);
+        super.onHiddenChanged(hidden);
     }
 
     @Override
-    public void onDestroy() {
-        Log.d(TAG, "onDestroy: ");
-        super.onDestroy();
+    public void onDestroyView() {
+        log("onDestroyView");
+        super.onDestroyView();
+        mIsVisibleToUser = false;
+        mIsBusinessDone = false;
     }
 
     @Override
     public void onSaveInstanceState(@NonNull Bundle outState) {
-        Log.d(TAG, "onSaveInstanceState: ");
+        log("onSaveInstanceState");
         super.onSaveInstanceState(outState);
         outState.putBoolean(STATE_SAVE_IS_HIDDEN, isHidden());
     }
 
-    private boolean isFastClick() {
-        long now = System.currentTimeMillis();
-        if (now - lastClick >= 200) {
-            lastClick = now;
-            return false;
-        }
-        return true;
+    @Override
+    public void onDestroy() {
+        log("onDestroy");
+        super.onDestroy();
     }
 
-    @Override
-    public void onClick(View view) {
-        if (!isFastClick()) onWidgetClick(view);
+    public void applyDebouncingClickListener(View... views) {
+        ClickUtils.applyGlobalDebouncing(views, mClickListener);
     }
 
     public <T extends View> T findViewById(@IdRes int id) {
         if (mContentView == null) throw new NullPointerException("ContentView is null.");
         return mContentView.findViewById(id);
     }
+
+    protected void log(String msg) {
+        if (isDebug == null) {
+            isDebug = AppUtils.isAppDebug();
+        }
+        if (isDebug) {
+            Log.d("BaseFragment", getClass().getSimpleName() + ": " + msg);
+        }
+    }
 }
diff --git a/lib/base/src/main/java/com/blankj/base/BaseKotlinActivity.kt b/lib/base/src/main/java/com/blankj/base/BaseKotlinActivity.kt
deleted file mode 100644
index 07876c8a2f..0000000000
--- a/lib/base/src/main/java/com/blankj/base/BaseKotlinActivity.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.blankj.base
-
-import android.support.v7.app.AppCompatActivity
-
-class BaseKotlinActivity : AppCompatActivity() {
-
-
-}
\ No newline at end of file
diff --git a/lib/base/src/main/java/com/blankj/base/BaseLazyFragment.java b/lib/base/src/main/java/com/blankj/base/BaseLazyFragment.java
deleted file mode 100644
index c4bf663123..0000000000
--- a/lib/base/src/main/java/com/blankj/base/BaseLazyFragment.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.blankj.base;
-
-import android.util.Log;
-
-/**
- * <pre>
- *     author: blankj
- *     blog  : http://blankj.com
- *     time  : 2018/03/23
- *     desc  : base about lazy fragment
- * </pre>
- */
-public abstract class BaseLazyFragment extends BaseFragment {
-
-    private static final String TAG = "BaseLazyFragment";
-
-    private boolean isDataLoaded;
-
-    public abstract void doLazyBusiness();
-
-    @Override
-    public void setUserVisibleHint(boolean isVisibleToUser) {
-        Log.d(TAG, "setUserVisibleHint: " + isVisibleToUser);
-        super.setUserVisibleHint(isVisibleToUser);
-        if (isVisibleToUser && mContentView != null && !isDataLoaded) {
-            doLazyBusiness();
-            isDataLoaded = true;
-        }
-    }
-
-    @Override
-    public void doBusiness() {
-        if (getUserVisibleHint()) {
-            doLazyBusiness();
-            isDataLoaded = true;
-        }
-    }
-}
diff --git a/lib/base/src/main/java/com/blankj/base/IBaseView.java b/lib/base/src/main/java/com/blankj/base/IBaseView.java
index 65ca26c721..821cbf4399 100644
--- a/lib/base/src/main/java/com/blankj/base/IBaseView.java
+++ b/lib/base/src/main/java/com/blankj/base/IBaseView.java
@@ -1,47 +1,32 @@
 package com.blankj.base;
 
 import android.os.Bundle;
-import android.support.annotation.Nullable;
 import android.view.View;
 
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+
 /**
  * <pre>
  *     author: Blankj
  *     blog  : http://blankj.com
- *     time  : 2017/06/27
+ *     time  : 2018/11/16
  *     desc  :
  * </pre>
  */
-interface IBaseView extends View.OnClickListener {
-
-    /**
-     * 初始化数据
-     *
-     * @param bundle 传递过来的 bundle
-     */
-    void initData(@Nullable final Bundle bundle);
-
-    /**
-     * 绑定布局
-     *
-     * @return 布局 Id
-     */
+public interface IBaseView {
+
+    void initData(@Nullable Bundle bundle);
+
     int bindLayout();
 
-    /**
-     * 初始化 view
-     */
-    void initView(final Bundle savedInstanceState, final View contentView);
+    void setContentView();
+
+    void initView(@Nullable Bundle savedInstanceState, @Nullable View contentView);
 
-    /**
-     * 业务操作
-     */
     void doBusiness();
 
-    /**
-     * 视图点击事件
-     *
-     * @param view 视图
-     */
-    void onWidgetClick(final View view);
+    void onDebouncingClick(@NonNull View view);
 }
diff --git a/lib/base/src/main/java/com/blankj/base/dialog/BaseDialog.java b/lib/base/src/main/java/com/blankj/base/dialog/BaseDialog.java
new file mode 100644
index 0000000000..1599d8becc
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/dialog/BaseDialog.java
@@ -0,0 +1,78 @@
+package com.blankj.base.dialog;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.View;
+import android.view.Window;
+
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.ThreadUtils;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/11
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseDialog extends Dialog {
+
+    protected Activity mActivity;
+
+    public abstract int bindLayout();
+
+    public abstract void initView(BaseDialog dialog, View contentView);
+
+    public abstract void setWindowStyle(Window window);
+
+    public BaseDialog(@NonNull Context context) {
+        this(context, 0);
+    }
+
+    public BaseDialog(@NonNull Context context, int themeResId) {
+        super(context, themeResId);
+        Activity activity = ActivityUtils.getActivityByContext(context);
+        if (activity == null) {
+            throw new IllegalArgumentException("context is not instance of Activity.");
+        }
+        mActivity = activity;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        View contentView = View.inflate(mActivity, bindLayout(), null);
+        setContentView(contentView);
+        initView(this, contentView);
+        setWindowStyle(getWindow());
+    }
+
+    @Override
+    public void show() {
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (ActivityUtils.isActivityAlive(getContext())) {
+                    BaseDialog.super.show();
+                }
+            }
+        });
+    }
+
+    @Override
+    public void dismiss() {
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (ActivityUtils.isActivityAlive(getContext())) {
+                    BaseDialog.super.dismiss();
+                }
+            }
+        });
+    }
+}
\ No newline at end of file
diff --git a/lib/base/src/main/java/com/blankj/base/dialog/BaseDialogFragment.java b/lib/base/src/main/java/com/blankj/base/dialog/BaseDialogFragment.java
new file mode 100644
index 0000000000..e115e78878
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/dialog/BaseDialogFragment.java
@@ -0,0 +1,159 @@
+package com.blankj.base.dialog;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.Window;
+
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.LogUtils;
+import com.blankj.utilcode.util.ThreadUtils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.DialogFragment;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.fragment.app.FragmentManager;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/11
+ *     desc  :
+ * </pre>
+ */
+public class BaseDialogFragment extends DialogFragment {
+
+    protected DialogLayoutCallback mDialogLayoutCallback;
+    protected DialogCallback       mDialogCallback;
+
+    protected FragmentActivity mActivity;
+    protected View             mContentView;
+
+    public BaseDialogFragment init(Context context, DialogLayoutCallback listener) {
+        mActivity = getFragmentActivity(context);
+        mDialogLayoutCallback = listener;
+        return this;
+    }
+
+    public BaseDialogFragment init(Context context, DialogCallback dialogCallback) {
+        mActivity = getFragmentActivity(context);
+        mDialogCallback = dialogCallback;
+        return this;
+    }
+
+    private FragmentActivity getFragmentActivity(Context context) {
+        Activity activity = ActivityUtils.getActivityByContext(context);
+        if (activity == null) return null;
+        if (activity instanceof FragmentActivity) {
+            return (FragmentActivity) activity;
+        }
+        LogUtils.w(context + "not instanceof FragmentActivity");
+        return null;
+    }
+
+    @Override
+    public int getTheme() {
+        if (mDialogLayoutCallback != null) {
+            int theme = mDialogLayoutCallback.bindTheme();
+            if (theme != View.NO_ID) {
+                return theme;
+            }
+        }
+        return super.getTheme();
+    }
+
+    @NonNull
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        Dialog dialog;
+        if (mDialogCallback != null) {
+            dialog = mDialogCallback.bindDialog(mActivity);
+        } else {
+            dialog = super.onCreateDialog(savedInstanceState);
+        }
+        Window window = dialog.getWindow();
+        if (mDialogCallback != null) {
+            mDialogCallback.setWindowStyle(window);
+        } else if (mDialogLayoutCallback != null) {
+            mDialogLayoutCallback.setWindowStyle(window);
+        }
+        return dialog;
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        if (mDialogLayoutCallback != null) {
+            return inflater.inflate(mDialogLayoutCallback.bindLayout(), container, false);
+        }
+        return super.onCreateView(inflater, container, savedInstanceState);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        if (mDialogLayoutCallback != null) {
+            mDialogLayoutCallback.initView(this, view);
+            return;
+        }
+        super.onViewCreated(view, savedInstanceState);
+    }
+
+    @Override
+    public void onCancel(DialogInterface dialog) {
+        super.onCancel(dialog);
+        if (mDialogLayoutCallback != null) {
+            mDialogLayoutCallback.onCancel(this);
+        }
+    }
+
+    @Override
+    public void onDismiss(DialogInterface dialog) {
+        super.onDismiss(dialog);
+        if (mDialogLayoutCallback != null) {
+            mDialogLayoutCallback.onDismiss(this);
+        }
+    }
+
+    public void show() {
+        show(getClass().getSimpleName());
+    }
+
+    public void show(final String tag) {
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @SuppressLint("CommitTransaction")
+            @Override
+            public void run() {
+                if (ActivityUtils.isActivityAlive(mActivity)) {
+                    FragmentManager fm = mActivity.getSupportFragmentManager();
+                    Fragment prev = fm.findFragmentByTag(tag);
+                    if (prev != null) {
+                        fm.beginTransaction().remove(prev);
+                    }
+                    BaseDialogFragment.super.show(fm, tag);
+                }
+            }
+        });
+    }
+
+    @Override
+    public void dismiss() {
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (ActivityUtils.isActivityAlive(mActivity)) {
+                    BaseDialogFragment.super.dismissAllowingStateLoss();
+                }
+            }
+        });
+    }
+}
+
+
diff --git a/lib/base/src/main/java/com/blankj/base/dialog/DialogCallback.java b/lib/base/src/main/java/com/blankj/base/dialog/DialogCallback.java
new file mode 100644
index 0000000000..defd34483f
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/dialog/DialogCallback.java
@@ -0,0 +1,22 @@
+package com.blankj.base.dialog;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.view.Window;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/12
+ *     desc  :
+ * </pre>
+ */
+public interface DialogCallback {
+    @NonNull
+    Dialog bindDialog(Activity activity);
+
+    void setWindowStyle(Window window);
+}
diff --git a/lib/base/src/main/java/com/blankj/base/dialog/DialogLayoutCallback.java b/lib/base/src/main/java/com/blankj/base/dialog/DialogLayoutCallback.java
new file mode 100644
index 0000000000..ea5c9a77cf
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/dialog/DialogLayoutCallback.java
@@ -0,0 +1,26 @@
+package com.blankj.base.dialog;
+
+import android.view.View;
+import android.view.Window;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/12
+ *     desc  :
+ * </pre>
+ */
+public interface DialogLayoutCallback {
+    int bindTheme();
+
+    int bindLayout();
+
+    void initView(BaseDialogFragment dialog, View contentView);
+
+    void setWindowStyle(Window window);
+
+    void onCancel(BaseDialogFragment dialog);
+
+    void onDismiss(BaseDialogFragment dialog);
+}
diff --git a/lib/base/src/main/java/com/blankj/base/mvp/BaseModel.java b/lib/base/src/main/java/com/blankj/base/mvp/BaseModel.java
new file mode 100644
index 0000000000..b48ed32f23
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/mvp/BaseModel.java
@@ -0,0 +1,25 @@
+package com.blankj.base.mvp;
+
+import android.util.Log;
+
+import androidx.annotation.CallSuper;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/02
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseModel {
+
+    private static final String TAG = BaseView.TAG;
+
+    public abstract void onCreate();
+
+    @CallSuper
+    public void onDestroy() {
+        Log.i(TAG, "destroy model: " + getClass().getSimpleName());
+    }
+}
diff --git a/lib/base/src/main/java/com/blankj/base/mvp/BasePresenter.java b/lib/base/src/main/java/com/blankj/base/mvp/BasePresenter.java
new file mode 100644
index 0000000000..32e672417b
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/mvp/BasePresenter.java
@@ -0,0 +1,73 @@
+package com.blankj.base.mvp;
+
+import android.util.Log;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import androidx.annotation.CallSuper;
+import androidx.lifecycle.ViewModel;
+import androidx.lifecycle.ViewModelProvider;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/02
+ *     desc  :
+ * </pre>
+ */
+public abstract class BasePresenter<V extends BaseView> {
+
+    private static final String TAG = BaseView.TAG;
+
+    private V                                          mView;
+    private Map<Class<? extends BaseModel>, BaseModel> mModelMap = new HashMap<>();
+    private boolean                                    isAlive   = true;
+
+    public abstract void onBindView();
+
+    void bindView(V view) {
+        this.mView = view;
+        onBindView();
+    }
+
+    public V getView() {
+        return mView;
+    }
+
+    public <M extends BaseModel> M getModel(Class<M> modelClass) {
+        BaseModel baseModel = mModelMap.get(modelClass);
+        if (baseModel != null) {
+            //noinspection unchecked
+            return (M) baseModel;
+        }
+        try {
+            M model = modelClass.newInstance();
+            mModelMap.put(modelClass, model);
+            model.onCreate();
+            return model;
+        } catch (IllegalAccessException e) {
+            Log.e("BasePresenter", "getModel", e);
+        } catch (InstantiationException e) {
+            Log.e("BasePresenter", "getModel", e);
+        }
+        return null;
+    }
+
+    @CallSuper
+    public void onDestroy() {
+        Log.i(TAG, "destroy presenter: " + getClass().getSimpleName());
+        isAlive = false;
+        for (BaseModel model : mModelMap.values()) {
+            if (model != null) {
+                model.onDestroy();
+            }
+        }
+        mModelMap.clear();
+    }
+
+    public boolean isAlive() {
+        return isAlive;
+    }
+}
diff --git a/lib/base/src/main/java/com/blankj/base/mvp/BaseView.java b/lib/base/src/main/java/com/blankj/base/mvp/BaseView.java
new file mode 100644
index 0000000000..a68909d01f
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/mvp/BaseView.java
@@ -0,0 +1,114 @@
+package com.blankj.base.mvp;
+
+import android.util.Log;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import androidx.annotation.CallSuper;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.lifecycle.Lifecycle;
+import androidx.lifecycle.LifecycleObserver;
+import androidx.lifecycle.OnLifecycleEvent;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/02
+ *     desc  :
+ * </pre>
+ */
+public class BaseView<V extends BaseView> implements LifecycleObserver {
+
+    public static final String TAG = "UtilsMVP";
+
+    private FragmentActivity                mActivity;
+    private Fragment                        mFragment;
+    private Lifecycle                       mLifecycle;
+    private Map<Class<?>, BasePresenter<V>> mPresenterMap = new HashMap<>();
+
+    public BaseView(Fragment fragment) {
+        mFragment = fragment;
+        mActivity = fragment.getActivity();
+        mLifecycle = mFragment.getLifecycle();
+        addLifecycle(this);
+    }
+
+    public BaseView(FragmentActivity activity) {
+        mActivity = activity;
+        mLifecycle = mActivity.getLifecycle();
+        addLifecycle(this);
+    }
+
+    public BaseView(Lifecycle lifecycle) {
+        mLifecycle = lifecycle;
+        addLifecycle(this);
+    }
+
+    public <T extends FragmentActivity> T getActivity() {
+        if (mActivity == null) {
+            return null;
+        }
+        //noinspection unchecked
+        return (T) mActivity;
+    }
+
+    public <T extends Fragment> T getFragment() {
+        if (mFragment == null) {
+            return null;
+        }
+        //noinspection unchecked
+        return (T) mFragment;
+    }
+
+    public V addPresenter(BasePresenter<V> presenter) {
+        if (presenter == null) return (V) this;
+        mPresenterMap.put(presenter.getClass(), presenter);
+        //noinspection unchecked
+        presenter.bindView((V) this);
+        return (V) this;
+    }
+
+    public <P extends BasePresenter<V>> P getPresenter(Class<P> presenterClass) {
+        if (presenterClass == null) {
+            throw new IllegalArgumentException("presenterClass is null!");
+        }
+        BasePresenter<V> basePresenter = mPresenterMap.get(presenterClass);
+        if (basePresenter == null) {
+            throw new IllegalArgumentException("presenter of <" + presenterClass.getSimpleName() + "> is not added!");
+        }
+        //noinspection unchecked
+        return (P) basePresenter;
+    }
+
+    @CallSuper
+    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
+    public void onDestroy() {
+        Log.i(TAG, "destroy view: " + getClass().getSimpleName());
+        removeLifecycle(this);
+        for (BasePresenter<V> presenter : mPresenterMap.values()) {
+            if (presenter != null) {
+                presenter.onDestroy();
+            }
+        }
+        mPresenterMap.clear();
+    }
+
+    private void addLifecycle(LifecycleObserver observer) {
+        if (mLifecycle == null) {
+            Log.w(TAG, "addLifecycle: mLifecycle is null");
+            return;
+        }
+        mLifecycle.addObserver(observer);
+    }
+
+    private void removeLifecycle(LifecycleObserver observer) {
+        if (mLifecycle == null) {
+            Log.w(TAG, "removeLifecycle: mLifecycle is null");
+            return;
+        }
+        mLifecycle.removeObserver(observer);
+    }
+}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/BaseItem.java b/lib/base/src/main/java/com/blankj/base/rv/BaseItem.java
new file mode 100644
index 0000000000..b0d6de04fa
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/rv/BaseItem.java
@@ -0,0 +1,169 @@
+package com.blankj.base.rv;
+
+import android.util.SparseArray;
+import android.util.SparseIntArray;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.List;
+
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/03/16
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseItem<T extends BaseItem> {
+
+    private static final SparseIntArray    LAYOUT_SPARSE_ARRAY = new SparseIntArray();
+    private static final SparseArray<View> VIEW_SPARSE_ARRAY   = new SparseArray<>();
+    public boolean isBindViewHolder = false;
+
+    static ItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        int layoutByType = LAYOUT_SPARSE_ARRAY.get(viewType, -1);
+        if (layoutByType != -1) {
+            return new ItemViewHolder(LayoutInflater.from(parent.getContext()).inflate(layoutByType, parent, false));
+        }
+        View viewByType = VIEW_SPARSE_ARRAY.get(viewType);
+        if (viewByType != null) {
+            return new ItemViewHolder(viewByType);
+        }
+        throw new RuntimeException("onCreateViewHolder: get holder from view type failed.");
+    }
+
+    public abstract void bind(@NonNull final ItemViewHolder holder, final int position);
+
+    public void partialUpdate(List<Object> payloads) {
+    }
+
+    void bindViewHolder(@NonNull final ItemViewHolder holder, final int position) {
+        isBindViewHolder = true;
+        if (mOnItemClickListener != null) {
+            holder.itemView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    if (mOnItemClickListener != null) {
+                        //noinspection unchecked
+                        mOnItemClickListener.onItemClick(holder, (T) BaseItem.this, getIndex());
+                    }
+                }
+            });
+        } else {
+            holder.itemView.setOnClickListener(null);
+        }
+        if (mOnItemLongClickListener != null) {
+            holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
+                @Override
+                public boolean onLongClick(View v) {
+                    if (mOnItemLongClickListener != null) {
+                        //noinspection unchecked
+                        return mOnItemLongClickListener.onItemLongClick(holder, (T) BaseItem.this, getIndex());
+                    }
+                    return false;
+                }
+            });
+        } else {
+            holder.itemView.setOnLongClickListener(null);
+        }
+        bind(holder, position);
+    }
+
+    public void onViewRecycled(@NonNull final ItemViewHolder holder, final int position) {
+        isBindViewHolder = false;
+    }
+
+    public long getItemId() {
+        return RecyclerView.NO_ID;
+    }
+
+    private int viewType;
+    BaseItemAdapter<T> mAdapter;
+    private OnItemClickListener<T>     mOnItemClickListener;
+    private OnItemLongClickListener<T> mOnItemLongClickListener;
+
+    public BaseItem(@LayoutRes int layoutId) {
+        viewType = getViewTypeByLayoutId(layoutId);
+        LAYOUT_SPARSE_ARRAY.put(viewType, layoutId);
+    }
+
+    public BaseItem(@NonNull View view) {
+        viewType = getViewTypeByView(view);
+        VIEW_SPARSE_ARRAY.put(viewType, view);
+    }
+
+    public int getViewType() {
+        return viewType;
+    }
+
+    public BaseItemAdapter<T> getAdapter() {
+        return mAdapter;
+    }
+
+    public boolean isViewType(@LayoutRes int layoutId) {
+        return viewType == getViewTypeByLayoutId(layoutId);
+    }
+
+    public boolean isViewType(@NonNull View view) {
+        return viewType == getViewTypeByView(view);
+    }
+
+    private int getViewTypeByLayoutId(@LayoutRes int layoutId) {
+        return layoutId + getClass().hashCode();
+    }
+
+    private int getViewTypeByView(@NonNull View view) {
+        return view.hashCode() + getClass().hashCode();
+    }
+
+    public void update() {
+        if (getAdapter() == null) return;
+        //noinspection unchecked
+        getAdapter().updateItem((T) this);
+    }
+
+    public List<T> getItems() {
+        return getAdapter().getItems();
+    }
+
+    public int getCount() {
+        return getAdapter().getItemCount();
+    }
+
+    public int getIndex() {
+        //noinspection SuspiciousMethodCalls
+        return getAdapter().getItems().indexOf(this);
+    }
+
+    public OnItemClickListener<T> getOnItemClickListener() {
+        return mOnItemClickListener;
+    }
+
+    public T setOnItemClickListener(OnItemClickListener<T> onItemClickListener) {
+        mOnItemClickListener = onItemClickListener;
+        return (T) this;
+    }
+
+    public OnItemLongClickListener<T> getOnItemLongClickListener() {
+        return mOnItemLongClickListener;
+    }
+
+    public T setOnItemLongClickListener(OnItemLongClickListener<T> onItemLongClickListener) {
+        mOnItemLongClickListener = onItemLongClickListener;
+        return (T) this;
+    }
+
+    public interface OnItemClickListener<T> {
+        void onItemClick(ItemViewHolder holder, T item, int position);
+    }
+
+    public interface OnItemLongClickListener<T> {
+        boolean onItemLongClick(ItemViewHolder holder, T item, int position);
+    }
+}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/BaseItemAdapter.java b/lib/base/src/main/java/com/blankj/base/rv/BaseItemAdapter.java
new file mode 100644
index 0000000000..67d5902752
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/rv/BaseItemAdapter.java
@@ -0,0 +1,308 @@
+package com.blankj.base.rv;
+
+import android.view.ViewGroup;
+
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/08/22
+ *     desc  :
+ * </pre>
+ */
+public class BaseItemAdapter<Item extends BaseItem> extends RecyclerView.Adapter<ItemViewHolder> {
+
+    public  List<Item>   mItems;
+    private RecyclerView mRecyclerView;
+
+    public BaseItemAdapter() {
+        this(false);
+    }
+
+    public BaseItemAdapter(boolean hasStableIds) {
+        setHasStableIds(hasStableIds);
+    }
+
+    @Override
+    public final int getItemViewType(int position) {
+        Item item = mItems.get(position);
+        item.mAdapter = this;
+        return item.getViewType();
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return mItems.get(position).getItemId();
+    }
+
+    @NonNull
+    @Override
+    public ItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return Item.onCreateViewHolder(parent, viewType);
+    }
+
+    @Override
+    public final void onBindViewHolder(@NonNull ItemViewHolder holder, int position) {
+        mItems.get(position).bindViewHolder(holder, position);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ItemViewHolder holder, int position, @NonNull List<Object> payloads) {
+        if (payloads.isEmpty()) {
+            super.onBindViewHolder(holder, position, payloads);
+            return;
+        }
+        mItems.get(position).partialUpdate(payloads);
+    }
+
+    @Override
+    public int getItemCount() {
+        return mItems.size();
+    }
+
+    @Override
+    public void onViewRecycled(@NonNull ItemViewHolder holder) {
+        super.onViewRecycled(holder);
+        int position = holder.getAdapterPosition();
+        if (position < 0 || position >= mItems.size()) {
+            return;
+        }
+        mItems.get(position).onViewRecycled(holder, position);
+    }
+
+    @Override
+    public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
+        super.onAttachedToRecyclerView(recyclerView);
+        mRecyclerView = recyclerView;
+    }
+
+    public RecyclerView getRecyclerView() {
+        return mRecyclerView;
+    }
+
+    public void setItems(@NonNull final List<Item> items) {
+        mItems = items;
+    }
+
+    public List<Item> getItems() {
+        return Collections.unmodifiableList(mItems);
+    }
+
+    public Item getItem(@IntRange(from = 0) final int position) {
+        return mItems.get(position);
+    }
+
+    public boolean isEmpty() {
+        return mItems.isEmpty();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // id
+    ///////////////////////////////////////////////////////////////////////////
+
+    public Item getItemById(final long id) {
+        int itemIndex = getItemIndexById(id);
+        if (itemIndex != -1) {
+            return mItems.get(itemIndex);
+        } else {
+            return null;
+        }
+    }
+
+    public int getItemIndexById(final long id) {
+        for (int i = 0; i < mItems.size(); i++) {
+            if (getItemId(i) == id) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    public boolean hasItemWithId(final long id) {
+        return getItemIndexById(id) != -1;
+    }
+
+    public int replaceItemById(final long id, @NonNull final Item item) {
+        return replaceItemById(id, item, false);
+    }
+
+    public int replaceItemById(final long id, @NonNull final Item item, boolean notifyChanged) {
+        int itemIndex = getItemIndexById(id);
+        if (itemIndex != -1) {
+            replaceItem(itemIndex, item, notifyChanged);
+        }
+        return itemIndex;
+    }
+
+    public int removeItemById(final long id) {
+        return removeItemById(id, false);
+    }
+
+    public int removeItemById(final long id, boolean notifyRemoved) {
+        for (int i = 0; i < mItems.size(); i++) {
+            if (getItemId(i) == id) {
+                removeItem(i, notifyRemoved);
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // operate
+    ///////////////////////////////////////////////////////////////////////////
+
+    public void updateItem(@NonNull final Item item) {
+        updateItems(item, 1, null);
+    }
+
+    public void updateItem(@IntRange(from = 0) final int index) {
+        updateItems(index, 1, null);
+    }
+
+    public void updateItem(@NonNull final Item item, Object payload) {
+        updateItems(item, 1, payload);
+    }
+
+    public void updateItem(@IntRange(from = 0) final int index, Object payload) {
+        updateItems(index, 1, payload);
+    }
+
+    public void updateItems(@NonNull final Item item, int itemCount) {
+        int itemIndex = mItems.indexOf(item);
+        if (itemIndex != -1) {
+            updateItems(itemIndex, itemCount);
+        }
+    }
+
+    public void updateItems(@IntRange(from = 0) final int index, int itemCount) {
+        updateItems(index, itemCount, null);
+    }
+
+    public void updateItems(@NonNull final Item item, int itemCount, Object payload) {
+        int itemIndex = mItems.indexOf(item);
+        if (itemIndex != -1) {
+            updateItems(itemIndex, itemCount, payload);
+        }
+    }
+
+    public void updateItems(@IntRange(from = 0) final int index, int itemCount, Object payload) {
+        notifyItemRangeChanged(index, itemCount, payload);
+    }
+
+    public void addItem(@NonNull final Item item) {
+        addItem(item, false);
+    }
+
+    public void addItem(@NonNull final Item item, boolean notifyInserted) {
+        mItems.add(item);
+        if (notifyInserted) notifyItemInserted(mItems.size() - 1);
+    }
+
+    public void addItem(@IntRange(from = 0) final int index, @NonNull final Item item) {
+        addItem(index, item, false);
+    }
+
+    public void addItem(@IntRange(from = 0) final int index, @NonNull final Item item, boolean notifyInserted) {
+        mItems.add(index, item);
+        if (notifyInserted) notifyItemInserted(index);
+    }
+
+    public void addItems(@NonNull final List<Item> items) {
+        addItems(items, false);
+    }
+
+    public void addItems(@NonNull final List<Item> items, boolean notifyInserted) {
+        mItems.addAll(items);
+        if (notifyInserted) notifyItemRangeInserted(mItems.size() - items.size() - 1, items.size());
+    }
+
+    public void addItems(@IntRange(from = 0) final int index, @NonNull final List<Item> items) {
+        addItems(index, items, false);
+    }
+
+    public void addItems(@IntRange(from = 0) final int index, @NonNull final List<Item> items, boolean notifyInserted) {
+        mItems.addAll(index, items);
+        if (notifyInserted) notifyItemRangeInserted(index, items.size());
+    }
+
+    public void swapItem(@IntRange(from = 0) final int firstIndex, @IntRange(from = 0) final int secondIndex) {
+        swapItem(firstIndex, secondIndex, false);
+    }
+
+    public void swapItem(@IntRange(from = 0) final int firstIndex,
+                         @IntRange(from = 0) final int secondIndex, boolean notifyMoved) {
+        Collections.swap(mItems, firstIndex, secondIndex);
+        if (notifyMoved) notifyItemMoved(firstIndex, secondIndex);
+    }
+
+    public Item replaceItem(@IntRange(from = 0) final int index, @NonNull final Item item) {
+        return replaceItem(index, item, false);
+    }
+
+    public Item replaceItem(@IntRange(from = 0) final int index, @NonNull final Item item, boolean notifyChanged) {
+        Item prevItem = mItems.set(index, item);
+        if (notifyChanged) notifyItemChanged(index);
+        return prevItem;
+    }
+
+    public boolean replaceItems(@NonNull final List<Item> items) {
+        return replaceItems(items, false);
+    }
+
+    public boolean replaceItems(@NonNull final List<Item> items, boolean notifyChanged) {
+        mItems.clear();
+        boolean added = mItems.addAll(items);
+        if (notifyChanged) notifyDataSetChanged();
+        return added;
+    }
+
+    public Item removeItem(@IntRange(from = 0) final int index) {
+        return removeItem(index, false);
+    }
+
+    public Item removeItem(@IntRange(from = 0) final int index, boolean notifyRemoved) {
+        Item removedItem = mItems.remove(index);
+        if (notifyRemoved) notifyItemRemoved(index);
+        return removedItem;
+    }
+
+    public int removeItem(@NonNull final Item item) {
+        return removeItem(item, false);
+    }
+
+    public int removeItem(@NonNull final Item item, boolean notifyRemoved) {
+        int itemIndex = mItems.indexOf(item);
+        if (itemIndex != -1) {
+            mItems.remove(itemIndex);
+            if (notifyRemoved) notifyItemRemoved(itemIndex);
+        }
+        return itemIndex;
+    }
+
+    public void clear() {
+        clear(false);
+    }
+
+    public void clear(boolean notifyDataSetChanged) {
+        mItems.clear();
+        if (notifyDataSetChanged) notifyDataSetChanged();
+    }
+
+    public void sortItems(@NonNull final Comparator<Item> comparator) {
+        sortItems(comparator, false);
+    }
+
+    public void sortItems(@NonNull final Comparator<Item> comparator, boolean notifyDataSetChanged) {
+        Collections.sort(mItems, comparator);
+        if (notifyDataSetChanged) notifyDataSetChanged();
+    }
+}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/BaseViewHolder.java b/lib/base/src/main/java/com/blankj/base/rv/BaseViewHolder.java
deleted file mode 100644
index 9afc85bdc2..0000000000
--- a/lib/base/src/main/java/com/blankj/base/rv/BaseViewHolder.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.blankj.base.rv;
-
-import android.support.annotation.IdRes;
-import android.support.v7.widget.RecyclerView;
-import android.util.SparseArray;
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/22
- *     desc  :
- * </pre>
- */
-public class BaseViewHolder extends RecyclerView.ViewHolder {
-
-    private SparseArray<View> viewArray = new SparseArray<>();
-
-    public BaseViewHolder(View itemView) {
-        super(itemView);
-    }
-
-    @SuppressWarnings("unchecked")
-    public <T extends View> T getView(@IdRes final int viewId) {
-        View view = viewArray.get(viewId);
-        if (view == null) {
-            view = itemView.findViewById(viewId);
-            viewArray.put(viewId, view);
-        }
-        return (T) view;
-    }
-}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/ItemViewHolder.java b/lib/base/src/main/java/com/blankj/base/rv/ItemViewHolder.java
new file mode 100644
index 0000000000..e2bf00dfd6
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/rv/ItemViewHolder.java
@@ -0,0 +1,43 @@
+package com.blankj.base.rv;
+
+import androidx.annotation.IdRes;
+import androidx.recyclerview.widget.RecyclerView;
+import android.util.SparseArray;
+import android.view.View;
+
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/08/22
+ *     desc  :
+ * </pre>
+ */
+public class ItemViewHolder extends RecyclerView.ViewHolder {
+
+    private SparseArray<View> viewArray = new SparseArray<>();
+
+    public ItemViewHolder(View itemView) {
+        super(itemView);
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T extends View> T findViewById(@IdRes final int viewId) {
+        View view = viewArray.get(viewId);
+        if (view == null) {
+            view = itemView.findViewById(viewId);
+            viewArray.put(viewId, view);
+        }
+        return (T) view;
+    }
+
+    public void setOnClickListener(@IdRes final int viewId, View.OnClickListener listener) {
+        findViewById(viewId).setOnClickListener(listener);
+    }
+
+    public void setOnLongClickListener(@IdRes final int viewId, View.OnLongClickListener listener) {
+        findViewById(viewId).setOnLongClickListener(listener);
+    }
+}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/RecycleViewDivider.java b/lib/base/src/main/java/com/blankj/base/rv/RecycleViewDivider.java
index 93896da1b7..6c2e4383af 100644
--- a/lib/base/src/main/java/com/blankj/base/rv/RecycleViewDivider.java
+++ b/lib/base/src/main/java/com/blankj/base/rv/RecycleViewDivider.java
@@ -5,11 +5,11 @@
 import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.NonNull;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.DrawableRes;
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
 import android.view.View;
 import android.widget.LinearLayout;
 
@@ -28,20 +28,30 @@ public class RecycleViewDivider extends RecyclerView.ItemDecoration {
 
     protected Drawable mDivider;
 
-    protected int mOrientation;
+    protected int     mOrientation;
+    protected boolean mShowFooterDivider;
 
     protected final Rect mBounds = new Rect();
 
     public RecycleViewDivider(Context context, int orientation, @DrawableRes int resId) {
-        this(context, orientation, ContextCompat.getDrawable(context, resId));
+        this(context, orientation, resId, false);
     }
 
     public RecycleViewDivider(Context context, int orientation, @NonNull Drawable divider) {
+        this(context, orientation, divider, false);
+    }
+
+    public RecycleViewDivider(Context context, int orientation, @DrawableRes int resId, boolean showFooterDivider) {
+        this(context, orientation, ContextCompat.getDrawable(context, resId), showFooterDivider);
+    }
+
+    public RecycleViewDivider(Context context, int orientation, @NonNull Drawable divider, boolean showFooterDivider) {
         setOrientation(orientation);
         mDivider = divider;
+        mShowFooterDivider = showFooterDivider;
     }
 
-    public void setOrientation(int orientation) {
+    private void setOrientation(int orientation) {
         if (orientation != HORIZONTAL && orientation != VERTICAL) {
             throw new IllegalArgumentException(
                     "Invalid orientation. It should be either HORIZONTAL or VERTICAL");
@@ -78,6 +88,7 @@ protected void drawVertical(Canvas canvas, RecyclerView parent) {
 
         final int childCount = parent.getChildCount();
         for (int i = 0; i < childCount; i++) {
+            if (i == childCount - 1 && !mShowFooterDivider) continue;
             final View child = parent.getChildAt(i);
             parent.getDecoratedBoundsWithMargins(child, mBounds);
             final int bottom = mBounds.bottom + Math.round(ViewCompat.getTranslationY(child));
@@ -105,6 +116,7 @@ protected void drawHorizontal(Canvas canvas, RecyclerView parent) {
 
         final int childCount = parent.getChildCount();
         for (int i = 0; i < childCount; i++) {
+            if (i == childCount - 1 && !mShowFooterDivider) continue;
             final View child = parent.getChildAt(i);
             parent.getLayoutManager().getDecoratedBoundsWithMargins(child, mBounds);
             final int right = mBounds.right + Math.round(ViewCompat.getTranslationX(child));
diff --git a/lib/base/src/main/java/com/blankj/base/rv/adapter/BaseAdapter.java b/lib/base/src/main/java/com/blankj/base/rv/adapter/BaseAdapter.java
deleted file mode 100644
index ca81e5e371..0000000000
--- a/lib/base/src/main/java/com/blankj/base/rv/adapter/BaseAdapter.java
+++ /dev/null
@@ -1,198 +0,0 @@
-package com.blankj.base.rv.adapter;
-
-import android.content.Context;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
-import android.util.SparseArray;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import com.blankj.base.rv.BaseViewHolder;
-import com.blankj.base.rv.listener.OnItemClickListener;
-import com.blankj.base.rv.listener.OnItemLongClickListener;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/22
- *     desc  :
- * </pre>
- */
-public abstract class BaseAdapter<M> extends RecyclerView.Adapter<BaseViewHolder> {
-
-    protected static final int VIEW_TYPE_EMPTY   = 0xfff0;
-    protected static final int VIEW_TYPE_HEADER  = 0xfff1;
-    protected static final int VIEW_TYPE_FOOTER  = 0xfff2;
-    protected static final int VIEW_TYPE_DEFAULT = 0xfff3;
-
-    private final SparseArray<View> mViewArray = new SparseArray<>();
-
-    protected List<M>   mData;
-    protected Context   mContext;
-    protected ViewGroup mParent;
-
-    protected LayoutInflater mInflater;
-
-    private OnItemClickListener     mClickListener;
-    private OnItemLongClickListener mLongClickListener;
-
-    public void setData(@NonNull final List<M> data) {
-        mData = data;
-    }
-
-    @Override
-    public final int getItemViewType(int position) {
-        if (getDataSize() == 0 && mViewArray.get(VIEW_TYPE_EMPTY) != null) {
-            return VIEW_TYPE_EMPTY;
-        } else if (position == 0 && mViewArray.get(VIEW_TYPE_HEADER) != null) {
-            return VIEW_TYPE_HEADER;
-        } else if (position == getItemCount() - 1 && mViewArray.get(VIEW_TYPE_FOOTER) != null) {
-            return VIEW_TYPE_FOOTER;
-        } else {
-            return getCustomViewType(position);
-        }
-    }
-
-    protected int getCustomViewType(final int position) {
-        return VIEW_TYPE_DEFAULT;
-    }
-
-    protected abstract int bindLayout(final int viewType);
-
-    @Override
-    public BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        if (mParent == null) {
-            mParent = parent;
-            mContext = parent.getContext();
-            mInflater = LayoutInflater.from(mContext);
-        }
-        View itemView = mViewArray.get(viewType);
-        if (itemView == null) {
-            itemView = inflateLayout(bindLayout(viewType));
-        }
-        return new BaseViewHolder(itemView);
-    }
-
-    @Override
-    public final void onBindViewHolder(BaseViewHolder holder, int position) {
-        switch (holder.getItemViewType()) {
-            case VIEW_TYPE_EMPTY:
-            case VIEW_TYPE_HEADER:
-            case VIEW_TYPE_FOOTER:
-                break;
-            default:
-                bindCustomViewHolder(holder, position);
-                break;
-        }
-    }
-
-    protected void bindCustomViewHolder(final BaseViewHolder holder, final int position) {
-        final int dataPos = position - (mViewArray.get(VIEW_TYPE_HEADER) == null ? 0 : 1);
-        holder.itemView.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                if (mClickListener != null) {
-                    mClickListener.onItemClick(v, dataPos);
-                }
-            }
-        });
-        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
-            @Override
-            public boolean onLongClick(View v) {
-                return mLongClickListener != null && mLongClickListener.onItemLongClick(v, dataPos);
-            }
-        });
-        bind(holder, mData.get(dataPos));
-    }
-
-    protected abstract void bind(final BaseViewHolder holder, final M data);
-
-    @Override
-    public int getItemCount() {
-        return getDataSize() + getExtraViewCount();
-    }
-
-    public void setEmptyView(@NonNull View emptyView) {
-        setView(VIEW_TYPE_EMPTY, emptyView);
-    }
-
-    public View getEmptyView() {
-        return getView(VIEW_TYPE_EMPTY);
-    }
-
-    public void removeEmptyView() {
-        removeView(VIEW_TYPE_EMPTY);
-    }
-
-    public void setHeaderView(@NonNull View headerView) {
-        setView(VIEW_TYPE_HEADER, headerView);
-    }
-
-    public View getHeaderView() {
-        return getView(VIEW_TYPE_HEADER);
-    }
-
-    public void removeHeaderView() {
-        removeView(VIEW_TYPE_HEADER);
-    }
-
-    public void setFooterView(@NonNull View footerView) {
-        setView(VIEW_TYPE_FOOTER, footerView);
-    }
-
-    public View getFooterView() {
-        return getView(VIEW_TYPE_FOOTER);
-    }
-
-    public void removeFooterView() {
-        removeView(VIEW_TYPE_FOOTER);
-    }
-
-    private void setView(final int type, @NonNull final View view) {
-        mViewArray.put(type, view);
-        notifyDataSetChanged();
-    }
-
-    private View getView(final int type) {
-        return mViewArray.get(type);
-    }
-
-    private void removeView(final int type) {
-        if (mViewArray.get(type) != null) {
-            mViewArray.delete(type);
-            notifyDataSetChanged();
-        }
-    }
-
-    private View inflateLayout(@LayoutRes final int layoutId) {
-        return mInflater.inflate(layoutId, mParent, false);
-    }
-
-    private int getExtraViewCount() {
-        int extraViewCount = 0;
-        if (mViewArray.get(VIEW_TYPE_HEADER) != null) {
-            extraViewCount++;
-        }
-        if (mViewArray.get(VIEW_TYPE_FOOTER) != null) {
-            extraViewCount++;
-        }
-        return extraViewCount;
-    }
-
-    public void setOnItemClickListener(final OnItemClickListener clickListener) {
-        mClickListener = clickListener;
-    }
-
-    public void setOnItemLongClickListener(final OnItemLongClickListener longClickListener) {
-        mLongClickListener = longClickListener;
-    }
-
-    private int getDataSize() {
-        return mData == null ? 0 : mData.size();
-    }
-}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/adapter/SingleAdapter.java b/lib/base/src/main/java/com/blankj/base/rv/adapter/SingleAdapter.java
deleted file mode 100644
index c500a3323f..0000000000
--- a/lib/base/src/main/java/com/blankj/base/rv/adapter/SingleAdapter.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.blankj.base.rv.adapter;
-
-import android.support.annotation.LayoutRes;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/22
- *     desc  :
- * </pre>
- */
-public abstract class SingleAdapter<M> extends BaseAdapter<M> {
-
-    private final int mLayoutId;
-
-    public SingleAdapter(List<M> list, @LayoutRes int layoutId) {
-        setData(list);
-        mLayoutId = layoutId;
-    }
-
-    @Override
-    protected int bindLayout(final int viewType) {
-        return mLayoutId;
-    }
-
-}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/listener/OnItemClickListener.java b/lib/base/src/main/java/com/blankj/base/rv/listener/OnItemClickListener.java
deleted file mode 100644
index 4517f70776..0000000000
--- a/lib/base/src/main/java/com/blankj/base/rv/listener/OnItemClickListener.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.blankj.base.rv.listener;
-
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/21
- *     desc  :
- * </pre>
- */
-public interface OnItemClickListener {
-    void onItemClick(final View view, final int position);
-}
diff --git a/lib/base/src/main/java/com/blankj/base/rv/listener/OnItemLongClickListener.java b/lib/base/src/main/java/com/blankj/base/rv/listener/OnItemLongClickListener.java
deleted file mode 100644
index ebe55601b9..0000000000
--- a/lib/base/src/main/java/com/blankj/base/rv/listener/OnItemLongClickListener.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.blankj.base.rv.listener;
-
-import android.view.View;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/08/21
- *     desc  :
- * </pre>
- */
-public interface OnItemLongClickListener {
-    boolean onItemLongClick(final View view, final int position);
-}
diff --git a/lib/base/src/main/java/com/blankj/base/view/EmptyGoneTextView.java b/lib/base/src/main/java/com/blankj/base/view/EmptyGoneTextView.java
new file mode 100644
index 0000000000..abb765a0a4
--- /dev/null
+++ b/lib/base/src/main/java/com/blankj/base/view/EmptyGoneTextView.java
@@ -0,0 +1,41 @@
+package com.blankj.base.view;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.StringUtils;
+
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/03
+ *     desc  :
+ * </pre>
+ */
+@SuppressLint("AppCompatCustomView")
+public class EmptyGoneTextView extends TextView {
+
+    public EmptyGoneTextView(Context context) {
+        this(context, null);
+    }
+
+    public EmptyGoneTextView(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        setVisibility(GONE);
+    }
+
+    @Override
+    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
+        super.onTextChanged(text, start, lengthBefore, lengthAfter);
+        if (StringUtils.isEmpty(text)) {
+            setVisibility(GONE);
+        } else {
+            setVisibility(VISIBLE);
+        }
+    }
+}
diff --git a/lib/base/src/main/res/layout/activity_back.xml b/lib/base/src/main/res/layout/activity_back.xml
index 6e3b6ce8b3..c01cbee99d 100644
--- a/lib/base/src/main/res/layout/activity_back.xml
+++ b/lib/base/src/main/res/layout/activity_back.xml
@@ -1,33 +1,34 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/root_layout"
+    android:id="@+id/baseBackRootLayout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@color/white">
+    android:background="@android:color/white">
 
-    <android.support.design.widget.AppBarLayout
-        android:id="@+id/abl"
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/baseBackAppBarLayout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
         app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
 
-        <android.support.v7.widget.Toolbar
-            android:id="@+id/toolbar"
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/baseBackToolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             app:layout_scrollFlags="scroll|enterAlways" />
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
-    <android.support.v4.widget.NestedScrollView
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/baseBackNsv"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <FrameLayout
-            android:id="@+id/activity_container"
+            android:id="@+id/baseBackContainerView"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />
-    </android.support.v4.widget.NestedScrollView>
-</android.support.design.widget.CoordinatorLayout>
+    </androidx.core.widget.NestedScrollView>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/lib/base/src/main/res/layout/activity_drawer.xml b/lib/base/src/main/res/layout/activity_drawer.xml
deleted file mode 100644
index 16b1fe3728..0000000000
--- a/lib/base/src/main/res/layout/activity_drawer.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.DrawerLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/root_layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:fitsSystemWindows="true"
-    android:overScrollMode="never"
-    tools:openDrawer="start">
-
-    <FrameLayout
-        android:id="@+id/activity_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <android.support.design.widget.NavigationView
-        android:id="@+id/nav_view"
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:layout_gravity="start"
-        android:background="@color/white"
-        android:fitsSystemWindows="false"
-        app:headerLayout="@layout/activity_drawer_nav_header"
-        app:menu="@menu/main_drawer" />
-
-</android.support.v4.widget.DrawerLayout>
diff --git a/lib/base/src/main/res/layout/activity_drawer_nav_header.xml b/lib/base/src/main/res/layout/activity_drawer_nav_header.xml
deleted file mode 100755
index 93d5d641df..0000000000
--- a/lib/base/src/main/res/layout/activity_drawer_nav_header.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="192dp"
-    android:theme="@style/ThemeOverlay.AppCompat.Dark">
-
-    <ImageView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="@color/colorPrimary"
-        android:scaleType="centerCrop"
-        android:src="@drawable/main_bg_header" />
-
-    <ImageView
-        android:id="@+id/iv_avatar"
-        android:layout_width="80dp"
-        android:layout_height="80dp"
-        android:layout_above="@+id/tv_desc"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:src="@drawable/main_avatar_round" />
-
-    <TextView
-        android:layout_width="match_parent"
-        android:layout_height="80dp"
-        android:layout_above="@+id/tv_desc"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_toRightOf="@id/iv_avatar"
-        android:gravity="center_vertical"
-        android:text="@string/author"
-        android:textColor="@color/white"
-        android:textSize="@dimen/font_40"
-        android:textStyle="bold" />
-
-    <TextView
-        android:id="@+id/tv_desc"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_marginBottom="@dimen/spacing_16"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginTop="@dimen/spacing_8"
-        android:text="@string/demo_of_android_util_code"
-        android:textColor="@color/white"
-        android:textSize="@dimen/font_16" />
-</RelativeLayout>
diff --git a/lib/base/src/main/res/layout/fragment_lazy.xml b/lib/base/src/main/res/layout/fragment_lazy.xml
new file mode 100644
index 0000000000..4971dc6fe6
--- /dev/null
+++ b/lib/base/src/main/res/layout/fragment_lazy.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/lazyFragmentRootFl"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" />
diff --git a/lib/base/src/main/res/values/strings.xml b/lib/base/src/main/res/values/strings.xml
deleted file mode 100644
index 945fdbe228..0000000000
--- a/lib/base/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<resources>
-    <string name="github">https://github.com/Blankj/AndroidUtilCode</string>
-    <string name="blog">https://blankj.com</string>
-</resources>
diff --git a/lib/common/.gitignore b/lib/common/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/lib/common/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/lib/common/build.gradle b/lib/common/build.gradle
new file mode 100644
index 0000000000..4993b43792
--- /dev/null
+++ b/lib/common/build.gradle
@@ -0,0 +1,4 @@
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    api Config.modules.lib_base.dep
+}
\ No newline at end of file
diff --git a/lib/common/proguard-rules.pro b/lib/common/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/lib/common/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/lib/common/src/main/AndroidManifest.xml b/lib/common/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..32ea8ea189
--- /dev/null
+++ b/lib/common/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest package="com.blankj.common" />
diff --git a/app/src/main/assets/test_install b/lib/common/src/main/assets/test_install
similarity index 100%
rename from app/src/main/assets/test_install
rename to lib/common/src/main/assets/test_install
diff --git a/lib/common/src/main/java/com/blankj/common/CommonApplication.java b/lib/common/src/main/java/com/blankj/common/CommonApplication.java
new file mode 100644
index 0000000000..309a73257a
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/CommonApplication.java
@@ -0,0 +1,19 @@
+package com.blankj.common;
+
+import com.blankj.base.BaseApplication;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/05
+ *     desc  : app about common
+ * </pre>
+ */
+public class CommonApplication extends BaseApplication {
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/activity/CommonActivity.java b/lib/common/src/main/java/com/blankj/common/activity/CommonActivity.java
new file mode 100644
index 0000000000..1d7d739597
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/activity/CommonActivity.java
@@ -0,0 +1,267 @@
+package com.blankj.common.activity;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.blankj.base.BaseActivity;
+import com.blankj.base.rv.BaseItemAdapter;
+import com.blankj.base.rv.RecycleViewDivider;
+import com.blankj.common.R;
+import com.blankj.common.dialog.CommonDialogLoading;
+import com.blankj.common.item.CommonItem;
+import com.blankj.swipepanel.SwipePanel;
+import com.blankj.utilcode.util.LanguageUtils;
+import com.blankj.utilcode.util.SizeUtils;
+
+import java.util.List;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/05
+ *     desc  :
+ * </pre>
+ */
+public abstract class CommonActivity extends BaseActivity {
+
+    private CommonActivityItemsView  mItemsView;
+    private CommonActivityTitleView  mTitleView;
+    private CommonActivityDrawerView mDrawerView;
+
+    private CommonDialogLoading mDialogLoading;
+
+    public View commonContentView;
+
+//    @Override
+//    protected void attachBaseContext(Context newBase) {
+//        super.attachBaseContext(LanguageUtils.attachBaseContext(newBase));
+//    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // title view
+    ///////////////////////////////////////////////////////////////////////////
+    public boolean isSwipeBack() {
+        return true;
+    }
+
+    @StringRes
+    public int bindTitleRes() {
+        return View.NO_ID;
+    }
+
+    public CharSequence bindTitle() {
+        return "";
+    }
+
+    public boolean isSupportScroll() {
+        return true;
+    }
+
+    public CommonActivityTitleView bindTitleView() {
+        return null;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // items view
+    ///////////////////////////////////////////////////////////////////////////
+    public CommonActivityItemsView bindItemsView() {
+        return null;
+    }
+
+    public List<CommonItem> bindItems() {
+        return null;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // drawer view
+    ///////////////////////////////////////////////////////////////////////////
+    public CommonActivityDrawerView bindDrawerView() {
+        return null;
+    }
+
+    public boolean bindDrawer() {
+        return false;
+    }
+
+    @CallSuper
+    @Override
+    public void initData(@Nullable Bundle bundle) {
+        mTitleView = bindTitleView();
+        if (mTitleView == null) {
+            int titleRes = bindTitleRes();
+            if (titleRes != View.NO_ID) {
+                mTitleView = new CommonActivityTitleView(this, titleRes, isSupportScroll());
+            } else {
+                CharSequence title = bindTitle();
+                if (!TextUtils.isEmpty(title)) {
+                    mTitleView = new CommonActivityTitleView(this, title, isSupportScroll());
+                }
+            }
+        }
+
+        mItemsView = bindItemsView();
+        if (mItemsView == null) {
+            List<CommonItem> items = bindItems();
+            if (items != null) {
+                mItemsView = new CommonActivityItemsView(this, items);
+            }
+        }
+
+        mDrawerView = bindDrawerView();
+        if (mDrawerView == null) {
+            if (bindDrawer()) {
+                mDrawerView = new CommonActivityDrawerView(this);
+            }
+        }
+
+        if (mTitleView != null && mItemsView != null) {
+            mTitleView.setIsSupportScroll(false);
+        }
+
+        findViewById(android.R.id.content).setBackgroundColor(getResources().getColor(R.color.lightGrayDark));
+        initSwipeBack();
+    }
+
+    @Override
+    public int bindLayout() {
+        return View.NO_ID;
+    }
+
+    @Override
+    public void setContentView() {
+        if (mTitleView != null) {
+            mContentView = LayoutInflater.from(this).inflate(mTitleView.bindLayout(), null);
+            setContentView(mContentView);
+            commonContentView = mTitleView.getContentView();
+        } else if (mDrawerView != null) {
+            mContentView = LayoutInflater.from(this).inflate(mDrawerView.bindLayout(), null);
+            setContentView(mContentView);
+            commonContentView = mDrawerView.getContentView();
+        } else {
+            if (mItemsView != null) {
+                mContentView = LayoutInflater.from(this).inflate(mItemsView.bindLayout(), null);
+                setContentView(mContentView);
+            } else {
+                super.setContentView();
+            }
+            commonContentView = mContentView;
+            return;
+        }
+
+        if (mItemsView != null) {
+            LayoutInflater.from(this).inflate(mItemsView.bindLayout(), (ViewGroup) commonContentView);
+        } else {
+            if (bindLayout() > 0) {
+                LayoutInflater.from(this).inflate(bindLayout(), (ViewGroup) commonContentView);
+            }
+        }
+    }
+
+    private void initSwipeBack() {
+        if (isSwipeBack()) {
+            final SwipePanel swipeLayout = new SwipePanel(this);
+            swipeLayout.setLeftDrawable(R.drawable.common_back);
+            swipeLayout.setLeftEdgeSize(SizeUtils.dp2px(16));
+            swipeLayout.setLeftSwipeColor(getResources().getColor(R.color.colorPrimary));
+            swipeLayout.wrapView(findViewById(android.R.id.content));
+            swipeLayout.setOnFullSwipeListener(new SwipePanel.OnFullSwipeListener() {
+                @Override
+                public void onFullSwipe(int direction) {
+                    swipeLayout.close(direction);
+                    finish();
+                }
+            });
+        }
+    }
+
+    @CallSuper
+    @Override
+    public void initView(@Nullable Bundle savedInstanceState, @Nullable View contentView) {
+        if (mItemsView != null) {
+            mItemsView.initView();
+        }
+    }
+
+    @Override
+    public void doBusiness() {
+    }
+
+    @Override
+    public void onDebouncingClick(@NonNull View view) {
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (mTitleView != null) {
+            return mTitleView.onOptionsItemSelected(item);
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    public void showLoading() {
+        showLoading(null);
+    }
+
+    public void showLoading(Runnable listener) {
+        if (mDialogLoading != null) {
+            return;
+        }
+        mDialogLoading = new CommonDialogLoading().init(this, listener);
+        mDialogLoading.show();
+    }
+
+    public void dismissLoading() {
+        if (mDialogLoading != null) {
+            mDialogLoading.dismiss();
+            mDialogLoading = null;
+        }
+    }
+
+    public CommonActivityItemsView getItemsView() {
+        return mItemsView;
+    }
+
+    public CommonActivityTitleView getTitleView() {
+        return mTitleView;
+    }
+
+    public CommonActivityDrawerView getDrawerView() {
+        return mDrawerView;
+    }
+
+    private BaseItemAdapter<CommonItem> mCommonItemAdapter;
+
+    public void setCommonItems(RecyclerView rv, List<CommonItem> items) {
+        mCommonItemAdapter = new BaseItemAdapter<>();
+        mCommonItemAdapter.setItems(items);
+        rv.setAdapter(mCommonItemAdapter);
+        rv.setLayoutManager(new LinearLayoutManager(this));
+        rv.addItemDecoration(new RecycleViewDivider(this, RecycleViewDivider.VERTICAL, R.drawable.common_item_divider));
+    }
+
+    public void updateCommonItems(List<CommonItem> data) {
+        mCommonItemAdapter.setItems(data);
+        mCommonItemAdapter.notifyDataSetChanged();
+    }
+
+    public void updateCommonItem(int position) {
+        mCommonItemAdapter.notifyItemChanged(position);
+    }
+
+    public BaseItemAdapter<CommonItem> getCommonItemAdapter() {
+        return mCommonItemAdapter;
+    }
+}
\ No newline at end of file
diff --git a/lib/common/src/main/java/com/blankj/common/activity/CommonActivityDrawerView.java b/lib/common/src/main/java/com/blankj/common/activity/CommonActivityDrawerView.java
new file mode 100644
index 0000000000..684d580a74
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/activity/CommonActivityDrawerView.java
@@ -0,0 +1,65 @@
+package com.blankj.common.activity;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.FrameLayout;
+
+import com.blankj.common.R;
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.google.android.material.navigation.NavigationView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.drawerlayout.widget.DrawerLayout;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/01
+ *     desc  :
+ * </pre>
+ */
+public class CommonActivityDrawerView {
+
+    public AppCompatActivity mBaseActivity;
+    public DrawerLayout      mBaseDrawerRootLayout;
+    public FrameLayout       mBaseDrawerContainerView;
+
+    private NavigationView.OnNavigationItemSelectedListener mListener = new NavigationView.OnNavigationItemSelectedListener() {
+        @Override
+        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
+            int id = item.getItemId();
+            if (id == R.id.baseDrawerActionGitHub) {
+                return goWeb(R.string.github);
+            } else if (id == R.id.baseDrawerActionBlog) {
+                return goWeb(R.string.blog);
+            }
+            return false;
+        }
+    };
+
+    public CommonActivityDrawerView(@NonNull AppCompatActivity activity) {
+        mBaseActivity = activity;
+    }
+
+    public int bindLayout() {
+        return R.layout.common_activity_drawer;
+    }
+
+    public View getContentView() {
+        mBaseDrawerRootLayout = mBaseActivity.findViewById(R.id.baseDrawerRootLayout);
+        mBaseDrawerContainerView = mBaseActivity.findViewById(R.id.baseDrawerContainerView);
+        NavigationView nav = mBaseActivity.findViewById(R.id.baseDrawerNavView);
+        nav.setNavigationItemSelectedListener(mListener);
+        return mBaseDrawerContainerView;
+    }
+
+    private boolean goWeb(@StringRes int id) {
+        return ActivityUtils.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(StringUtils.getString(id))));
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/activity/CommonActivityItemsView.java b/lib/common/src/main/java/com/blankj/common/activity/CommonActivityItemsView.java
new file mode 100644
index 0000000000..120eae1963
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/activity/CommonActivityItemsView.java
@@ -0,0 +1,57 @@
+package com.blankj.common.activity;
+
+
+import com.blankj.base.rv.BaseItemAdapter;
+import com.blankj.base.rv.RecycleViewDivider;
+import com.blankj.common.R;
+import com.blankj.common.item.CommonItem;
+
+import java.util.List;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/01
+ *     desc  :
+ * </pre>
+ */
+public class CommonActivityItemsView {
+
+    public  AppCompatActivity           mBaseActivity;
+    private List<CommonItem>            mItems;
+    public  BaseItemAdapter<CommonItem> mCommonItemAdapter;
+    public  RecyclerView                mCommonItemRv;
+
+    public CommonActivityItemsView(@NonNull AppCompatActivity activity, @NonNull List<CommonItem> items) {
+        mBaseActivity = activity;
+        mItems = items;
+    }
+
+    public int bindLayout() {
+        return R.layout.common_item;
+    }
+
+    public void initView() {
+        mCommonItemAdapter = new BaseItemAdapter<>();
+        mCommonItemAdapter.setItems(mItems);
+        mCommonItemRv = mBaseActivity.findViewById(R.id.commonItemRv);
+        mCommonItemRv.setAdapter(mCommonItemAdapter);
+        mCommonItemRv.setLayoutManager(new LinearLayoutManager(mBaseActivity));
+        mCommonItemRv.addItemDecoration(new RecycleViewDivider(mBaseActivity, RecycleViewDivider.VERTICAL, R.drawable.common_item_divider));
+    }
+
+    public void updateItems(List<CommonItem> data) {
+        mCommonItemAdapter.setItems(data);
+        mCommonItemAdapter.notifyDataSetChanged();
+    }
+
+    public void updateItem(int position) {
+        mCommonItemAdapter.notifyItemChanged(position);
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/activity/CommonActivityTitleView.java b/lib/common/src/main/java/com/blankj/common/activity/CommonActivityTitleView.java
new file mode 100644
index 0000000000..623feee1a3
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/activity/CommonActivityTitleView.java
@@ -0,0 +1,95 @@
+package com.blankj.common.activity;
+
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewStub;
+import android.widget.FrameLayout;
+
+import com.blankj.common.R;
+import com.blankj.utilcode.util.BarUtils;
+import com.blankj.utilcode.util.ColorUtils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/01
+ *     desc  :
+ * </pre>
+ */
+public class CommonActivityTitleView {
+
+    public AppCompatActivity mBaseActivity;
+    public CharSequence      mTitle;
+    public boolean           mIsSupportScroll;
+    public CoordinatorLayout baseTitleRootLayout;
+    public Toolbar           baseTitleToolbar;
+    public FrameLayout       baseTitleContentView;
+    public ViewStub          mViewStub;
+
+    public CommonActivityTitleView(@NonNull AppCompatActivity activity, @StringRes int resId) {
+        this(activity, activity.getString(resId), true);
+    }
+
+    public CommonActivityTitleView(@NonNull AppCompatActivity activity, @NonNull CharSequence title) {
+        this(activity, title, true);
+    }
+
+    public CommonActivityTitleView(@NonNull AppCompatActivity activity, @StringRes int resId, boolean isSupportScroll) {
+        this(activity, activity.getString(resId), isSupportScroll);
+    }
+
+    public CommonActivityTitleView(@NonNull AppCompatActivity activity, @NonNull CharSequence title, boolean isSupportScroll) {
+        mBaseActivity = activity;
+        mTitle = title;
+        mIsSupportScroll = isSupportScroll;
+    }
+
+    public void setIsSupportScroll(boolean isSupportScroll) {
+        mIsSupportScroll = isSupportScroll;
+    }
+
+    public int bindLayout() {
+        return R.layout.common_activity_title;
+    }
+
+    public View getContentView() {
+        baseTitleRootLayout = mBaseActivity.findViewById(R.id.baseTitleRootLayout);
+        baseTitleToolbar = mBaseActivity.findViewById(R.id.baseTitleToolbar);
+        if (mIsSupportScroll) {
+            mViewStub = mBaseActivity.findViewById(R.id.baseTitleStubScroll);
+        } else {
+            mViewStub = mBaseActivity.findViewById(R.id.baseTitleStubNoScroll);
+        }
+        mViewStub.setVisibility(View.VISIBLE);
+        baseTitleContentView = mBaseActivity.findViewById(R.id.commonTitleContentView);
+        setTitleBar();
+        BarUtils.setStatusBarColor(mBaseActivity, ColorUtils.getColor(R.color.colorPrimary));
+        BarUtils.addMarginTopEqualStatusBarHeight(baseTitleRootLayout);
+        return baseTitleContentView;
+    }
+
+    private void setTitleBar() {
+        mBaseActivity.setSupportActionBar(baseTitleToolbar);
+        ActionBar titleBar = mBaseActivity.getSupportActionBar();
+        if (titleBar != null) {
+            titleBar.setDisplayHomeAsUpEnabled(true);
+            titleBar.setTitle(mTitle);
+        }
+    }
+
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            mBaseActivity.finish();
+            return true;
+        }
+        return mBaseActivity.onOptionsItemSelected(item);
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/dialog/CommonDialogContent.java b/lib/common/src/main/java/com/blankj/common/dialog/CommonDialogContent.java
new file mode 100644
index 0000000000..1cbe7a8ab2
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/dialog/CommonDialogContent.java
@@ -0,0 +1,113 @@
+package com.blankj.common.dialog;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.util.Pair;
+import android.view.View;
+import android.view.Window;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.blankj.base.dialog.BaseDialogFragment;
+import com.blankj.base.dialog.DialogLayoutCallback;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.ClickUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/18
+ *     desc  :
+ * </pre>
+ */
+public class CommonDialogContent extends BaseDialogFragment {
+
+    private RelativeLayout cdcTitleRl;
+    private TextView       cdcTitleTv;
+    private RelativeLayout cdcContentRl;
+    private TextView       cdcContentTv;
+    private RelativeLayout cdcBottomRl;
+    private TextView       cdcBottomPositiveTv;
+    private TextView       cdcBottomNegativeTv;
+
+    public CommonDialogContent init(Context context, final CharSequence title, final CharSequence content,
+                                    final Pair<CharSequence, View.OnClickListener> positiveBtnAction,
+                                    final Pair<CharSequence, View.OnClickListener> negativeBtnAction) {
+        super.init(context, new DialogLayoutCallback() {
+            @Override
+            public int bindTheme() {
+                return R.style.CommonContentDialogStyle;
+            }
+
+            @Override
+            public int bindLayout() {
+                return R.layout.common_dialog_content;
+            }
+
+            @Override
+            public void initView(final BaseDialogFragment dialog, View contentView) {
+                cdcTitleRl = contentView.findViewById(R.id.cdcTitleRl);
+                cdcTitleTv = contentView.findViewById(R.id.cdcTitleTv);
+                cdcContentRl = contentView.findViewById(R.id.cdcContentRl);
+                cdcContentTv = contentView.findViewById(R.id.cdcContentTv);
+                cdcBottomRl = contentView.findViewById(R.id.cdcBottomRl);
+                cdcBottomPositiveTv = contentView.findViewById(R.id.cdcBottomPositiveTv);
+                cdcBottomNegativeTv = contentView.findViewById(R.id.cdcBottomNegativeTv);
+
+                if (TextUtils.isEmpty(title)) {
+                    cdcTitleRl.setVisibility(View.GONE);
+                } else {
+                    cdcTitleTv.setText(title);
+                }
+                if (TextUtils.isEmpty(content)) {
+                    cdcContentRl.setVisibility(View.GONE);
+                } else {
+                    cdcContentTv.setText(content);
+                }
+
+                if (positiveBtnAction == null && negativeBtnAction == null) {
+                    cdcBottomRl.setVisibility(View.GONE);
+                } else {
+                    if (positiveBtnAction != null) {
+                        ClickUtils.applyPressedBgDark(cdcBottomPositiveTv);
+                        cdcBottomPositiveTv.setText(positiveBtnAction.first);
+                        cdcBottomPositiveTv.setOnClickListener(new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                dismiss();
+                                positiveBtnAction.second.onClick(v);
+                            }
+                        });
+                    }
+                    if (negativeBtnAction != null) {
+                        ClickUtils.applyPressedBgDark(cdcBottomNegativeTv);
+                        cdcBottomNegativeTv.setText(negativeBtnAction.first);
+                        cdcBottomNegativeTv.setOnClickListener(new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                dismiss();
+                                negativeBtnAction.second.onClick(v);
+                            }
+                        });
+                    }
+                }
+            }
+
+            @Override
+            public void setWindowStyle(Window window) {
+            }
+
+            @Override
+            public void onCancel(BaseDialogFragment dialog) {
+
+            }
+
+            @Override
+            public void onDismiss(BaseDialogFragment dialog) {
+
+            }
+        });
+        return this;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/dialog/CommonDialogLoading.java b/lib/common/src/main/java/com/blankj/common/dialog/CommonDialogLoading.java
new file mode 100644
index 0000000000..b40a10f5cc
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/dialog/CommonDialogLoading.java
@@ -0,0 +1,65 @@
+package com.blankj.common.dialog;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+
+import com.blankj.base.dialog.BaseDialogFragment;
+import com.blankj.base.dialog.DialogLayoutCallback;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.BarUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/29
+ *     desc  :
+ * </pre>
+ */
+public class CommonDialogLoading extends BaseDialogFragment {
+
+    public CommonDialogLoading init(Context context, final Runnable onCancelListener) {
+        super.init(context, new DialogLayoutCallback() {
+            @Override
+            public int bindTheme() {
+                return R.style.CommonLoadingDialogStyle;
+            }
+
+            @Override
+            public int bindLayout() {
+                return R.layout.common_dialog_loading;
+            }
+
+            @Override
+            public void initView(BaseDialogFragment dialog, View contentView) {
+                if (onCancelListener == null) {
+                    setCancelable(false);
+                } else {
+                    setCancelable(true);
+                }
+            }
+
+            @Override
+            public void setWindowStyle(final Window window) {
+                window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
+                BarUtils.setStatusBarColor(window, Color.TRANSPARENT);
+            }
+
+            @Override
+            public void onCancel(BaseDialogFragment dialog) {
+                if (onCancelListener != null) {
+                    onCancelListener.run();
+                }
+            }
+
+            @Override
+            public void onDismiss(BaseDialogFragment dialog) {
+
+            }
+        });
+        return this;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/fragment/CommonFragment.java b/lib/common/src/main/java/com/blankj/common/fragment/CommonFragment.java
new file mode 100644
index 0000000000..46f4b24115
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/fragment/CommonFragment.java
@@ -0,0 +1,114 @@
+package com.blankj.common.fragment;
+
+import android.os.Bundle;
+import android.view.View;
+
+import com.blankj.base.BaseFragment;
+import com.blankj.base.rv.BaseItemAdapter;
+import com.blankj.base.rv.RecycleViewDivider;
+import com.blankj.common.R;
+import com.blankj.common.activity.CommonActivityItemsView;
+import com.blankj.common.item.CommonItem;
+
+import java.util.List;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/11/03
+ *     desc  :
+ * </pre>
+ */
+public class CommonFragment extends BaseFragment {
+
+    private CommonActivityItemsView mItemsView;
+
+    ///////////////////////////////////////////////////////////////////////////
+    // items view
+    ///////////////////////////////////////////////////////////////////////////
+    public CommonActivityItemsView bindItemsView() {
+        return null;
+    }
+
+    public List<CommonItem> bindItems() {
+        return null;
+    }
+
+    @CallSuper
+    @Override
+    public void initData(@Nullable Bundle bundle) {
+        mItemsView = bindItemsView();
+        if (mItemsView == null) {
+            List<CommonItem> items = bindItems();
+            if (items != null) {
+                mItemsView = new CommonActivityItemsView(mActivity, items);
+            }
+        }
+    }
+
+    @Override
+    public int bindLayout() {
+        return View.NO_ID;
+    }
+
+    @Override
+    public void setContentView() {
+        if (mItemsView != null) {
+            mContentView = mInflater.inflate(mItemsView.bindLayout(), null);
+        } else {
+            super.setContentView();
+        }
+    }
+
+    @CallSuper
+    @Override
+    public void initView(@Nullable Bundle savedInstanceState, @Nullable View contentView) {
+        if (mItemsView != null) {
+            mItemsView.initView();
+        }
+    }
+
+    @Override
+    public void doBusiness() {
+        log("doBusiness");
+    }
+
+    @Override
+    public void onDebouncingClick(@NonNull View view) {
+    }
+
+
+    public CommonActivityItemsView getItemsView() {
+        return mItemsView;
+    }
+
+    private BaseItemAdapter<CommonItem> mCommonItemAdapter;
+
+    public void setCommonItems(RecyclerView rv, List<CommonItem> items) {
+        mCommonItemAdapter = new BaseItemAdapter<>();
+        mCommonItemAdapter.setItems(items);
+        rv.setAdapter(mCommonItemAdapter);
+        rv.setLayoutManager(new LinearLayoutManager(mActivity));
+        rv.addItemDecoration(new RecycleViewDivider(mActivity, RecycleViewDivider.VERTICAL, R.drawable.common_item_divider));
+    }
+
+    public void updateCommonItems(List<CommonItem> data) {
+        mCommonItemAdapter.setItems(data);
+        mCommonItemAdapter.notifyDataSetChanged();
+    }
+
+    public void updateCommonItem(int position) {
+        mCommonItemAdapter.notifyItemChanged(position);
+    }
+
+    public BaseItemAdapter<CommonItem> getCommonItemAdapter() {
+        return mCommonItemAdapter;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/helper/PermissionHelper.kt b/lib/common/src/main/java/com/blankj/common/helper/PermissionHelper.kt
new file mode 100644
index 0000000000..1df23cb1a4
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/helper/PermissionHelper.kt
@@ -0,0 +1,96 @@
+package com.blankj.common.helper
+
+import android.content.Context
+import android.util.Pair
+import android.view.View
+import com.blankj.common.R
+import com.blankj.common.dialog.CommonDialogContent
+import com.blankj.utilcode.constant.PermissionConstants
+import com.blankj.utilcode.util.*
+
+/**
+ * ```
+ * author: Blankj
+ * blog  : http://blankj.com
+ * time  : 2018/01/06
+ * desc  : helper about permission
+ * ```
+ */
+object PermissionHelper {
+
+    fun request(context: Context, callback: PermissionUtils.SimpleCallback,
+                @PermissionConstants.PermissionGroup vararg permissions: String) {
+        PermissionUtils.permission(*permissions)
+                .rationale { activity, shouldRequest -> showRationaleDialog(activity, shouldRequest) }
+                .callback(object : PermissionUtils.SingleCallback {
+                    override fun callback(isAllGranted: Boolean, granted: MutableList<String>,
+                                          deniedForever: MutableList<String>, denied: MutableList<String>) {
+                        LogUtils.d(isAllGranted, granted, deniedForever, denied)
+                        if (isAllGranted) {
+                            callback.onGranted()
+                            return
+                        }
+                        if (deniedForever.isNotEmpty()) {
+                            showOpenAppSettingDialog(context)
+                            return
+                        }
+                        val activity = ActivityUtils.getActivityByContext(context)
+                        if (activity != null) {
+                            SnackbarUtils.with(activity.findViewById(android.R.id.content))
+                                    .setMessage("Permission denied: ${permissions2String(denied)}")
+                                    .showError(true)
+                        }
+                        callback.onDenied()
+                    }
+
+                    fun permissions2String(permissions: MutableList<String>): String {
+                        if (permissions.isEmpty()) return "[]"
+                        val sb: StringBuilder = StringBuilder()
+                        for (permission in permissions) {
+                            sb.append(", " + permission.substring(permission.lastIndexOf('.') + 1))
+                        }
+                        return "[${sb.substring(2)}]"
+                    }
+                })
+                .request()
+    }
+
+    fun showRationaleDialog(context: Context, shouldRequest: PermissionUtils.OnRationaleListener.ShouldRequest) {
+        CommonDialogContent().init(context,
+                StringUtils.getString(android.R.string.dialog_alert_title),
+                StringUtils.getString(R.string.permission_rationale_message),
+                Pair(StringUtils.getString(android.R.string.ok), View.OnClickListener {
+                    shouldRequest.again(true)
+                }),
+                Pair(StringUtils.getString(android.R.string.cancel), View.OnClickListener {
+                    shouldRequest.again(false)
+                }))
+                .show()
+    }
+
+    fun showExplainDialog(context: Context, denied: List<String>, shouldRequest: PermissionUtils.OnExplainListener.ShouldRequest) {
+        CommonDialogContent().init(context,
+                StringUtils.getString(android.R.string.dialog_alert_title),
+                "We needs the permissions of $denied to test the utils of permission.",
+                Pair(StringUtils.getString(android.R.string.ok), View.OnClickListener {
+                    shouldRequest.start(true)
+                }),
+                Pair(StringUtils.getString(android.R.string.cancel), View.OnClickListener {
+                    ToastUtils.showShort("request failed.")
+                    shouldRequest.start(false)
+                }))
+                .show()
+    }
+
+    fun showOpenAppSettingDialog(context: Context) {
+        CommonDialogContent().init(context,
+                StringUtils.getString(android.R.string.dialog_alert_title),
+                StringUtils.getString(R.string.permission_denied_forever_message),
+                Pair(StringUtils.getString(android.R.string.ok), View.OnClickListener {
+                    PermissionUtils.launchAppDetailsSettings()
+                }),
+                Pair(StringUtils.getString(android.R.string.cancel), View.OnClickListener {
+                }))
+                .show()
+    }
+}
\ No newline at end of file
diff --git a/lib/common/src/main/java/com/blankj/common/item/CommonItem.java b/lib/common/src/main/java/com/blankj/common/item/CommonItem.java
new file mode 100644
index 0000000000..c04ef136ab
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/item/CommonItem.java
@@ -0,0 +1,41 @@
+package com.blankj.common.item;
+
+import com.blankj.base.rv.BaseItem;
+import com.blankj.base.rv.ItemViewHolder;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.ColorUtils;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/25
+ *     desc  :
+ * </pre>
+ */
+public class CommonItem<T extends BaseItem> extends BaseItem<T> {
+
+    private int backgroundColor = ColorUtils.getColor(R.color.lightGray);
+
+    public CommonItem(int layoutId) {
+        super(layoutId);
+    }
+
+    @CallSuper
+    @Override
+    public void bind(@NonNull final ItemViewHolder holder, int position) {
+        holder.itemView.setBackgroundColor(backgroundColor);
+    }
+
+    public CommonItem<T> setBackgroundColor(int backgroundColor) {
+        this.backgroundColor = backgroundColor;
+        return this;
+    }
+
+    public int getBackgroundColor() {
+        return backgroundColor;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/item/CommonItemClick.java b/lib/common/src/main/java/com/blankj/common/item/CommonItemClick.java
new file mode 100644
index 0000000000..3db0b7caed
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/item/CommonItemClick.java
@@ -0,0 +1,137 @@
+package com.blankj.common.item;
+
+import android.view.View;
+import android.widget.TextView;
+
+import com.blankj.base.rv.ItemViewHolder;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utilcode.util.Utils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/31
+ *     desc  :
+ * </pre>
+ */
+public class CommonItemClick extends CommonItem<CommonItemClick> {
+
+    private CharSequence mTitle;
+    private CharSequence mContent;
+    private boolean      mIsJump;
+
+    public CommonItemClick(@StringRes int title) {
+        this(StringUtils.getString(title), "", false, null);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title) {
+        this(title, "", false, null);
+    }
+
+    public CommonItemClick(@StringRes int title, boolean isJump) {
+        this(StringUtils.getString(title), "", isJump);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, boolean isJump) {
+        this(title, "", isJump, null);
+    }
+
+    public CommonItemClick(@StringRes int title, CharSequence content) {
+        this(StringUtils.getString(title), content, false, null);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, CharSequence content) {
+        this(title, content, false, null);
+    }
+
+    public CommonItemClick(@StringRes int title, CharSequence content, boolean isJump) {
+        this(StringUtils.getString(title), content, isJump);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, CharSequence content, boolean isJump) {
+        this(title, content, isJump, null);
+    }
+
+    public CommonItemClick(@StringRes int title, final Runnable simpleClickListener) {
+        this(StringUtils.getString(title), "", false, simpleClickListener);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, final Runnable simpleClickListener) {
+        this(title, "", false, simpleClickListener);
+    }
+
+    public CommonItemClick(@StringRes int title, boolean isJump, final Runnable simpleClickListener) {
+        this(StringUtils.getString(title), "", isJump, simpleClickListener);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, boolean isJump, final Runnable simpleClickListener) {
+        this(title, "", isJump, simpleClickListener);
+    }
+
+    public CommonItemClick(@StringRes int title, CharSequence content, final Runnable simpleClickListener) {
+        this(StringUtils.getString(title), content, false, simpleClickListener);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, CharSequence content, final Runnable simpleClickListener) {
+        this(title, content, false, simpleClickListener);
+    }
+
+    public CommonItemClick(@StringRes int title, CharSequence content, boolean isJump, final Runnable simpleClickListener) {
+        this(StringUtils.getString(title), content, isJump, simpleClickListener);
+    }
+
+    public CommonItemClick(@NonNull CharSequence title, CharSequence content, boolean isJump, final Runnable simpleClickListener) {
+        super(R.layout.common_item_title_click);
+        mTitle = title;
+        mContent = content;
+        mIsJump = isJump;
+        if (simpleClickListener == null) return;
+        setOnItemClickListener(new OnItemClickListener<CommonItemClick>() {
+            @Override
+            public void onItemClick(ItemViewHolder holder, CommonItemClick item, int position) {
+                if (simpleClickListener != null) {
+                    simpleClickListener.run();
+                }
+            }
+        });
+    }
+
+    public CommonItemClick setOnClickUpdateContentListener(@NonNull final Utils.Supplier<CharSequence> supplier) {
+        setOnItemClickListener(new OnItemClickListener<CommonItemClick>() {
+            @Override
+            public void onItemClick(ItemViewHolder holder, CommonItemClick item, int position) {
+                item.mContent = supplier.get();
+                update();
+            }
+        });
+        return this;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        super.bind(holder, position);
+        final TextView titleTv = holder.findViewById(R.id.commonItemTitleTv);
+        final TextView contentTv = holder.findViewById(R.id.commonItemContentTv);
+
+        titleTv.setText(mTitle);
+        contentTv.setText(mContent);
+
+        ClickUtils.applyPressedBgDark(holder.itemView);
+        holder.findViewById(R.id.commonItemGoIv).setVisibility(mIsJump ? View.VISIBLE : View.GONE);
+    }
+
+    public void setTitle(CharSequence title) {
+        mTitle = title;
+        update();
+    }
+
+    public CharSequence getTitle() {
+        return mTitle;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/item/CommonItemImage.java b/lib/common/src/main/java/com/blankj/common/item/CommonItemImage.java
new file mode 100644
index 0000000000..207746bf85
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/item/CommonItemImage.java
@@ -0,0 +1,46 @@
+package com.blankj.common.item;
+
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.blankj.base.rv.ItemViewHolder;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utilcode.util.Utils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/31
+ *     desc  :
+ * </pre>
+ */
+public class CommonItemImage extends CommonItem {
+
+    private CharSequence              mTitle;
+    private Utils.Consumer<ImageView> mSetImageConsumer;
+
+    public CommonItemImage(@StringRes int title, @NonNull Utils.Consumer<ImageView> setImageConsumer) {
+        this(StringUtils.getString(title), setImageConsumer);
+    }
+
+    public CommonItemImage(@NonNull CharSequence title, @NonNull Utils.Consumer<ImageView> setImageConsumer) {
+        super(R.layout.common_item_title_image);
+        mTitle = title;
+        mSetImageConsumer = setImageConsumer;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        super.bind(holder, position);
+        final TextView titleTv = holder.findViewById(R.id.commonItemTitleTv);
+
+        titleTv.setText(mTitle);
+        ImageView commonItemIv = holder.findViewById(R.id.commonItemIv);
+        mSetImageConsumer.accept(commonItemIv);
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/item/CommonItemSeekBar.java b/lib/common/src/main/java/com/blankj/common/item/CommonItemSeekBar.java
new file mode 100644
index 0000000000..14ff005851
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/item/CommonItemSeekBar.java
@@ -0,0 +1,106 @@
+package com.blankj.common.item;
+
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+import com.blankj.base.rv.ItemViewHolder;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.StringUtils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/31
+ *     desc  :
+ * </pre>
+ */
+public class CommonItemSeekBar extends CommonItem {
+
+    private CharSequence     mTitle;
+    private CharSequence     mContent;
+    private int              mMaxProgress;
+    private int              mCurProgress;
+    private ProgressListener mProgressListener;
+
+    public CommonItemSeekBar(@StringRes int title, int maxProgress, @NonNull ProgressListener listener) {
+        this(StringUtils.getString(title), maxProgress, listener);
+    }
+
+    public CommonItemSeekBar(@NonNull CharSequence title, int maxProgress, @NonNull ProgressListener listener) {
+        super(R.layout.common_item_title_seekbar);
+        mTitle = title;
+        mMaxProgress = maxProgress;
+        mCurProgress = listener.getCurValue();
+        mProgressListener = listener;
+        mContent = String.valueOf(mCurProgress);
+    }
+
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        super.bind(holder, position);
+        final TextView titleTv = holder.findViewById(R.id.commonItemTitleTv);
+        final TextView contentTv = holder.findViewById(R.id.commonItemContentTv);
+
+        titleTv.setText(mTitle);
+        contentTv.setText(mContent);
+
+        final SeekBar seekBar = holder.findViewById(R.id.commonItemSb);
+        seekBar.setMax(mMaxProgress);
+        seekBar.setProgress(mCurProgress);
+        holder.itemView.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                return seekBar.dispatchTouchEvent(event);
+            }
+        });
+        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                mProgressListener.onProgressChanged(seekBar, progress, fromUser);
+                int curValue = mProgressListener.getCurValue();
+                mCurProgress = curValue;
+                contentTv.setText(String.valueOf(curValue));
+                seekBar.setProgress(curValue);
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+                mProgressListener.onStartTrackingTouch(seekBar);
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+                mProgressListener.onStopTrackingTouch(seekBar);
+            }
+        });
+    }
+
+    public void setTitle(CharSequence title) {
+        mTitle = title;
+        update();
+    }
+
+    public CharSequence getTitle() {
+        return mTitle;
+    }
+
+    public static abstract class ProgressListener implements SeekBar.OnSeekBarChangeListener {
+
+        public abstract int getCurValue();
+
+        @Override
+        public void onStartTrackingTouch(SeekBar seekBar) {
+        }
+
+        @Override
+        public void onStopTrackingTouch(SeekBar seekBar) {
+        }
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/item/CommonItemSwitch.java b/lib/common/src/main/java/com/blankj/common/item/CommonItemSwitch.java
new file mode 100644
index 0000000000..cbb9b0792a
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/item/CommonItemSwitch.java
@@ -0,0 +1,87 @@
+package com.blankj.common.item;
+
+import android.annotation.SuppressLint;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.Switch;
+import android.widget.TextView;
+
+import com.blankj.base.rv.ItemViewHolder;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utilcode.util.Utils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/31
+ *     desc  :
+ * </pre>
+ */
+public class CommonItemSwitch extends CommonItem {
+
+    private CharSequence            mTitle;
+    private CharSequence            mContent;
+    private boolean                 mState;
+    private Utils.Supplier<Boolean> mGetStateSupplier;
+    private Utils.Consumer<Boolean> mSetStateConsumer;
+
+
+    public CommonItemSwitch(@StringRes int title, @NonNull Utils.Supplier<Boolean> getStateSupplier, @NonNull Utils.Consumer<Boolean> setStateConsumer) {
+        this(StringUtils.getString(title), getStateSupplier, setStateConsumer);
+    }
+
+    public CommonItemSwitch(@NonNull CharSequence title, @NonNull Utils.Supplier<Boolean> getStateSupplier, @NonNull Utils.Consumer<Boolean> setStateConsumer) {
+        super(R.layout.common_item_title_switch);
+        mTitle = title;
+        mGetStateSupplier = getStateSupplier;
+        mSetStateConsumer = setStateConsumer;
+        mState = getStateSupplier.get();
+        mContent = String.valueOf(mState);
+    }
+
+    @SuppressLint("ClickableViewAccessibility")
+    @Override
+    public void bind(@NonNull final ItemViewHolder holder, int position) {
+        super.bind(holder, position);
+        ClickUtils.applyPressedBgDark(holder.itemView);
+        final TextView titleTv = holder.findViewById(R.id.commonItemTitleTv);
+        final TextView contentTv = holder.findViewById(R.id.commonItemContentTv);
+
+        titleTv.setText(mTitle);
+        contentTv.setText(mContent);
+
+        final Switch switchView = holder.findViewById(R.id.commonItemSwitch);
+        switchView.setChecked(mState);
+        switchView.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                holder.itemView.onTouchEvent(event);
+                return true;
+            }
+        });
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mSetStateConsumer.accept(!mState);
+                mState = mGetStateSupplier.get();
+                contentTv.setText(String.valueOf(mState));
+                switchView.setChecked(mState);
+            }
+        });
+    }
+
+    public void setTitle(CharSequence title) {
+        mTitle = title;
+        update();
+    }
+
+    public CharSequence getTitle() {
+        return mTitle;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/item/CommonItemTitle.java b/lib/common/src/main/java/com/blankj/common/item/CommonItemTitle.java
new file mode 100644
index 0000000000..0c088fb6ec
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/item/CommonItemTitle.java
@@ -0,0 +1,102 @@
+package com.blankj.common.item;
+
+import android.graphics.Color;
+import android.view.Gravity;
+import android.widget.TextView;
+
+import com.blankj.base.rv.ItemViewHolder;
+import com.blankj.common.R;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utilcode.util.Utils;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/31
+ *     desc  :
+ * </pre>
+ */
+public class CommonItemTitle extends CommonItem {
+
+    private CharSequence                 mTitle;
+    private Utils.Supplier<CharSequence> mGetTitleSupplier;
+    private boolean                      mIsTitleCenter;
+    private CharSequence                 mContent;
+
+    public CommonItemTitle(@NonNull Utils.Supplier<CharSequence> getTitleSupplier, boolean isTitleCenter) {
+        super(R.layout.common_item_title_content);
+        mTitle = mGetTitleSupplier.get();
+        mGetTitleSupplier = getTitleSupplier;
+        mIsTitleCenter = isTitleCenter;
+    }
+
+    public CommonItemTitle(@StringRes int title, boolean isTitleCenter) {
+        this(StringUtils.getString(title), isTitleCenter);
+    }
+
+    public CommonItemTitle(@NonNull CharSequence title, boolean isTitleCenter) {
+        super(R.layout.common_item_title_content);
+        mTitle = title;
+        mIsTitleCenter = isTitleCenter;
+    }
+
+    public CommonItemTitle(@NonNull CharSequence title, CharSequence content) {
+        super(R.layout.common_item_title_content);
+        mTitle = title;
+        mContent = content;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        super.bind(holder, position);
+        if (mGetTitleSupplier != null) {
+            mTitle = mGetTitleSupplier.get();
+        }
+        final TextView titleTv = holder.findViewById(R.id.commonItemTitleTv);
+        final TextView contentTv = holder.findViewById(R.id.commonItemContentTv);
+
+        titleTv.setText(mTitle);
+        contentTv.setText(mContent);
+
+        if (isViewType(R.layout.common_item_title_content)) {
+            if (mIsTitleCenter) {
+                holder.itemView.setBackgroundColor(Color.TRANSPARENT);
+                titleTv.setGravity(Gravity.CENTER_HORIZONTAL);
+                titleTv.getPaint().setFakeBoldText(true);
+            } else {
+                titleTv.setGravity(Gravity.START);
+                titleTv.getPaint().setFakeBoldText(false);
+            }
+        }
+    }
+
+    public void setTitle(CharSequence title) {
+        setTitle(title, true);
+    }
+
+    public void setContent(CharSequence content) {
+        setContent(content, true);
+    }
+
+    public void setTitle(CharSequence title, boolean isUpdate) {
+        mTitle = title;
+        if (isUpdate) {
+            update();
+        }
+    }
+
+    public void setContent(CharSequence content, boolean isUpdate) {
+        mContent = content;
+        if (isUpdate) {
+            update();
+        }
+    }
+
+    public CharSequence getTitle() {
+        return mTitle;
+    }
+}
diff --git a/lib/common/src/main/java/com/blankj/common/view/RotateView.java b/lib/common/src/main/java/com/blankj/common/view/RotateView.java
new file mode 100644
index 0000000000..7d3e0a9c02
--- /dev/null
+++ b/lib/common/src/main/java/com/blankj/common/view/RotateView.java
@@ -0,0 +1,57 @@
+package com.blankj.common.view;
+
+import android.animation.ObjectAnimator;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.animation.LinearInterpolator;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/28
+ *     desc  :
+ * </pre>
+ */
+public class RotateView extends View {
+
+    private ObjectAnimator headerAnimator;
+
+    public RotateView(Context context) {
+        this(context, null);
+    }
+
+    public RotateView(Context context, @Nullable AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public RotateView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    protected void onVisibilityChanged(@NonNull View changedView, int visibility) {
+        super.onVisibilityChanged(changedView, visibility);
+        if (headerAnimator == null) {
+            initAnimator();
+        }
+        if (visibility == VISIBLE) {
+            headerAnimator.start();
+        } else {
+            headerAnimator.end();
+        }
+    }
+
+    private void initAnimator() {
+        headerAnimator = ObjectAnimator.ofFloat(this, "rotation", 0f, 360f);
+        headerAnimator.setRepeatCount(ObjectAnimator.INFINITE);
+        headerAnimator.setInterpolator(new LinearInterpolator());
+        headerAnimator.setRepeatMode(ObjectAnimator.RESTART);
+        headerAnimator.setDuration(1000);
+        headerAnimator.start();
+    }
+}
diff --git a/app/src/main/res/anim/slide_in_left.xml b/lib/common/src/main/res/anim/slide_in_left.xml
similarity index 100%
rename from app/src/main/res/anim/slide_in_left.xml
rename to lib/common/src/main/res/anim/slide_in_left.xml
diff --git a/lib/common/src/main/res/anim/slide_in_right.xml b/lib/common/src/main/res/anim/slide_in_right.xml
new file mode 100755
index 0000000000..689d7e672b
--- /dev/null
+++ b/lib/common/src/main/res/anim/slide_in_right.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="200"
+        android:fromXDelta="-100%"
+        android:toXDelta="0" />
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/slide_out_left.xml b/lib/common/src/main/res/anim/slide_out_left.xml
similarity index 100%
rename from app/src/main/res/anim/slide_out_left.xml
rename to lib/common/src/main/res/anim/slide_out_left.xml
diff --git a/app/src/main/res/anim/slide_out_right.xml b/lib/common/src/main/res/anim/slide_out_right.xml
similarity index 100%
rename from app/src/main/res/anim/slide_out_right.xml
rename to lib/common/src/main/res/anim/slide_out_right.xml
diff --git a/app/src/main/res/drawable/main_avatar_round.png b/lib/common/src/main/res/drawable-xxhdpi/common_avatar_round.png
similarity index 100%
rename from app/src/main/res/drawable/main_avatar_round.png
rename to lib/common/src/main/res/drawable-xxhdpi/common_avatar_round.png
diff --git a/lib/common/src/main/res/drawable-xxhdpi/common_bg_header.jpeg b/lib/common/src/main/res/drawable-xxhdpi/common_bg_header.jpeg
new file mode 100644
index 0000000000..c05ad5cd39
Binary files /dev/null and b/lib/common/src/main/res/drawable-xxhdpi/common_bg_header.jpeg differ
diff --git a/lib/common/src/main/res/drawable-xxhdpi/common_ic_item_go.png b/lib/common/src/main/res/drawable-xxhdpi/common_ic_item_go.png
new file mode 100644
index 0000000000..c98017d5dc
Binary files /dev/null and b/lib/common/src/main/res/drawable-xxhdpi/common_ic_item_go.png differ
diff --git a/lib/common/src/main/res/drawable-xxhdpi/common_loading.png b/lib/common/src/main/res/drawable-xxhdpi/common_loading.png
new file mode 100644
index 0000000000..6389a295de
Binary files /dev/null and b/lib/common/src/main/res/drawable-xxhdpi/common_loading.png differ
diff --git a/lib/common/src/main/res/drawable-xxhdpi/common_switch_thumb.xml b/lib/common/src/main/res/drawable-xxhdpi/common_switch_thumb.xml
new file mode 100644
index 0000000000..4d15fadb05
--- /dev/null
+++ b/lib/common/src/main/res/drawable-xxhdpi/common_switch_thumb.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+    <solid android:color="@color/lightGrayDark" />
+    <stroke
+        android:width="2dp"
+        android:color="@android:color/transparent" />
+    <size
+        android:width="20dp"
+        android:height="20dp" />
+</shape>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable-xxhdpi/common_switch_track.xml b/lib/common/src/main/res/drawable-xxhdpi/common_switch_track.xml
new file mode 100644
index 0000000000..3ee1b4dd6e
--- /dev/null
+++ b/lib/common/src/main/res/drawable-xxhdpi/common_switch_track.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:state_checked="true">
+        <shape android:shape="rectangle">
+            <solid android:color="@color/loveGreen" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+
+    <item android:state_checked="false">
+        <shape android:shape="rectangle">
+            <solid android:color="@color/mediumGrayDark" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_back.png b/lib/common/src/main/res/drawable/common_back.png
new file mode 100644
index 0000000000..b0b4bf36b3
Binary files /dev/null and b/lib/common/src/main/res/drawable/common_back.png differ
diff --git a/lib/common/src/main/res/drawable/common_button_bg.xml b/lib/common/src/main/res/drawable/common_button_bg.xml
new file mode 100644
index 0000000000..bb9ee19a83
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_button_bg.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_enabled="true" android:state_pressed="true">
+        <shape>
+            <solid android:color="@color/lightGray" />
+            <corners android:radius="@dimen/radius_8" />
+        </shape>
+    </item>
+
+    <item>
+        <shape>
+            <solid android:color="@color/white" />
+            <corners android:radius="@dimen/radius_8" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_button_txt_color.xml b/lib/common/src/main/res/drawable/common_button_txt_color.xml
new file mode 100644
index 0000000000..e6d3f47bb9
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_button_txt_color.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="@color/darkGray" android:state_pressed="true" />
+    <item android:color="@color/darkGrayDark" />
+</selector>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_content_dialog_bg.xml b/lib/common/src/main/res/drawable/common_content_dialog_bg.xml
new file mode 100644
index 0000000000..f883b17143
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_content_dialog_bg.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/lightGray" />
+    <corners android:radius="@dimen/radius_8" />
+    <stroke
+        android:width="1dp"
+        android:color="@color/lightGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_content_dialog_btn_bg.xml b/lib/common/src/main/res/drawable/common_content_dialog_btn_bg.xml
new file mode 100644
index 0000000000..bdc490f63c
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_content_dialog_btn_bg.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/lightGray" />
+    <corners android:radius="@dimen/radius_4" />
+</shape>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_item_divider.xml b/lib/common/src/main/res/drawable/common_item_divider.xml
new file mode 100755
index 0000000000..f78ca79b95
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_item_divider.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <size android:height="1px" />
+    <solid android:color="@color/mediumGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_loading_bg.xml b/lib/common/src/main/res/drawable/common_loading_bg.xml
new file mode 100644
index 0000000000..2454b72e20
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_loading_bg.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#BB000000" />
+    <corners android:radius="50dp" />
+</shape>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_rotate_loading.xml b/lib/common/src/main/res/drawable/common_rotate_loading.xml
new file mode 100644
index 0000000000..877cfe98c1
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_rotate_loading.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rotate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:drawable="@drawable/common_loading"
+    android:fromDegrees="0"
+    android:pivotX="50%"
+    android:pivotY="50%"
+    android:toDegrees="1080" />
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_scrollbar_thumb.xml b/lib/common/src/main/res/drawable/common_scrollbar_thumb.xml
new file mode 100644
index 0000000000..c121f6e87c
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_scrollbar_thumb.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="4dp" />
+    <solid android:color="@color/mediumGray" />
+</shape>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_seekbar_progress.xml b/lib/common/src/main/res/drawable/common_seekbar_progress.xml
new file mode 100644
index 0000000000..00b67af1da
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_seekbar_progress.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@android:id/background"
+        android:gravity="center_vertical|fill_horizontal">
+        <shape>
+            <size android:height="2dp" />
+            <corners android:radius="2dp" />
+            <solid android:color="@color/mediumGray" />
+        </shape>
+    </item>
+    <item
+        android:id="@android:id/secondaryProgress"
+        android:gravity="center_vertical|fill_horizontal">
+        <clip>
+            <shape>
+                <size android:height="2dp" />
+                <corners android:radius="2dp" />
+                <solid android:color="@color/mediumGray" />
+            </shape>
+        </clip>
+    </item>
+    <item
+        android:id="@android:id/progress"
+        android:gravity="center_vertical|fill_horizontal">
+        <clip>
+            <shape>
+                <size android:height="2dp" />
+                <corners android:radius="2dp" />
+                <solid android:color="@color/colorPrimary" />
+            </shape>
+        </clip>
+    </item>
+</layer-list>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_seekbar_thumb.xml b/lib/common/src/main/res/drawable/common_seekbar_thumb.xml
new file mode 100644
index 0000000000..6b54886317
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_seekbar_thumb.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true">
+        <shape android:shape="oval">
+            <size android:width="12dp" android:height="12dp" />
+            <solid android:color="@color/colorPrimary" />
+        </shape>
+    </item>
+    <item>
+        <shape android:shape="oval">
+            <size android:width="12dp" android:height="12dp" />
+            <solid android:color="@color/white" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/lib/common/src/main/res/drawable/common_splash.xml b/lib/common/src/main/res/drawable/common_splash.xml
new file mode 100644
index 0000000000..8411f46067
--- /dev/null
+++ b/lib/common/src/main/res/drawable/common_splash.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/lightGrayDark" />
+    <item>
+        <bitmap
+            android:gravity="bottom|center_horizontal"
+            android:src="@mipmap/ic_launcher" />
+    </item>
+</layer-list>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/main_menu_blog.xml b/lib/common/src/main/res/drawable/main_menu_blog.xml
similarity index 100%
rename from app/src/main/res/drawable/main_menu_blog.xml
rename to lib/common/src/main/res/drawable/main_menu_blog.xml
diff --git a/app/src/main/res/drawable/main_menu_github.xml b/lib/common/src/main/res/drawable/main_menu_github.xml
similarity index 100%
rename from app/src/main/res/drawable/main_menu_github.xml
rename to lib/common/src/main/res/drawable/main_menu_github.xml
diff --git a/lib/common/src/main/res/layout/common_activity_drawer.xml b/lib/common/src/main/res/layout/common_activity_drawer.xml
new file mode 100644
index 0000000000..3d2c27a6e7
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_activity_drawer.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/baseDrawerRootLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fitsSystemWindows="true"
+    android:overScrollMode="never"
+    tools:openDrawer="start">
+
+    <FrameLayout
+        android:id="@+id/baseDrawerContainerView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <com.google.android.material.navigation.NavigationView
+        android:id="@+id/baseDrawerNavView"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_gravity="start"
+        android:background="@color/white"
+        app:headerLayout="@layout/common_activity_drawer_nav_header"
+        app:menu="@menu/common_drawer" />
+
+</androidx.drawerlayout.widget.DrawerLayout>
diff --git a/lib/common/src/main/res/layout/common_activity_drawer_nav_header.xml b/lib/common/src/main/res/layout/common_activity_drawer_nav_header.xml
new file mode 100755
index 0000000000..70c0fc8811
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_activity_drawer_nav_header.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="192dp">
+
+    <ImageView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/colorPrimary"
+        android:scaleType="centerCrop"
+        android:src="@drawable/common_bg_header" />
+
+    <ImageView
+        android:id="@+id/baseDrawerNavHeaderAvatarIv"
+        android:layout_width="80dp"
+        android:layout_height="80dp"
+        android:layout_above="@+id/descTv"
+        android:layout_marginLeft="@dimen/spacing_16"
+        android:src="@drawable/common_avatar_round" />
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="80dp"
+        android:layout_above="@+id/descTv"
+        android:layout_marginLeft="@dimen/spacing_16"
+        android:layout_toRightOf="@id/baseDrawerNavHeaderAvatarIv"
+        android:gravity="center_vertical"
+        android:text="@string/author"
+        android:textColor="@color/white"
+        android:textSize="@dimen/font_40"
+        android:textStyle="bold" />
+
+    <TextView
+        android:id="@+id/descTv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_marginLeft="@dimen/spacing_16"
+        android:layout_marginTop="@dimen/spacing_8"
+        android:layout_marginBottom="@dimen/spacing_16"
+        android:text="@string/demo_of_android_util_code"
+        android:textColor="@color/white"
+        android:textSize="@dimen/font_16" />
+</RelativeLayout>
diff --git a/lib/common/src/main/res/layout/common_activity_title.xml b/lib/common/src/main/res/layout/common_activity_title.xml
new file mode 100644
index 0000000000..c9b69da80d
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_activity_title.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/baseTitleRootLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/baseTitleAppBarLayout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/baseTitleToolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            app:layout_scrollFlags="scroll|enterAlways" />
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <ViewStub
+        android:id="@+id/baseTitleStubScroll"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout="@layout/common_activity_title_stub_scroll"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+    <ViewStub
+        android:id="@+id/baseTitleStubNoScroll"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout="@layout/common_activity_title_stub_no_scroll"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/lib/common/src/main/res/layout/common_activity_title_stub_no_scroll.xml b/lib/common/src/main/res/layout/common_activity_title_stub_no_scroll.xml
new file mode 100644
index 0000000000..438937c438
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_activity_title_stub_no_scroll.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/commonTitleContentView"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" />
diff --git a/lib/common/src/main/res/layout/common_activity_title_stub_scroll.xml b/lib/common/src/main/res/layout/common_activity_title_stub_scroll.xml
new file mode 100644
index 0000000000..6a26dca6f2
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_activity_title_stub_scroll.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/commonTitleNsv"
+    style="@style/CommonScrollStyle"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fillViewport="true">
+
+    <FrameLayout
+        android:id="@+id/commonTitleContentView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</androidx.core.widget.NestedScrollView>
+
diff --git a/lib/common/src/main/res/layout/common_dialog_content.xml b/lib/common/src/main/res/layout/common_dialog_content.xml
new file mode 100644
index 0000000000..d5cea48959
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_dialog_content.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/common_content_dialog_bg"
+    android:padding="16dp">
+
+    <RelativeLayout
+        android:id="@+id/cdcTitleRl"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <TextView
+            android:id="@+id/cdcTitleTv"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="@color/darkGrayDark"
+            android:textSize="@dimen/font_20"
+            tools:text="Title" />
+
+    </RelativeLayout>
+
+    <RelativeLayout
+        android:id="@+id/cdcContentRl"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/cdcTitleRl"
+        android:layout_marginTop="8dp">
+
+        <TextView
+            android:id="@+id/cdcContentTv"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:lineSpacingExtra="2dp"
+            android:textColor="@color/darkGray"
+            android:textSize="@dimen/font_16"
+            tools:text="ContentContentContentContentContentContentContentContent" />
+    </RelativeLayout>
+
+    <RelativeLayout
+        android:id="@+id/cdcBottomRl"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/cdcContentRl"
+        android:layout_marginTop="4dp">
+
+        <TextView
+            android:id="@+id/cdcBottomPositiveTv"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentRight="true"
+            android:layout_marginLeft="16dp"
+            android:background="@drawable/common_content_dialog_btn_bg"
+            android:padding="4dp"
+            android:textColor="@color/colorPrimary"
+            android:textSize="@dimen/font_16"
+            tools:text="Yes" />
+
+        <TextView
+            android:id="@+id/cdcBottomNegativeTv"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_toLeftOf="@id/cdcBottomPositiveTv"
+            android:background="@drawable/common_content_dialog_btn_bg"
+            android:padding="4dp"
+            android:textColor="@color/darkGrayDark"
+            android:textSize="@dimen/font_16"
+            tools:text="No" />
+
+    </RelativeLayout>
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/layout/common_dialog_loading.xml b/lib/common/src/main/res/layout/common_dialog_loading.xml
new file mode 100644
index 0000000000..6399d89e45
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_dialog_loading.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|center_horizontal"
+        android:layout_marginLeft="64dp"
+        android:layout_marginRight="64dp"
+        android:layout_marginBottom="120dp"
+        android:background="@drawable/common_loading_bg"
+        android:gravity="center"
+        android:minWidth="100dp"
+        android:minHeight="40dp"
+        android:paddingLeft="20dp"
+        android:paddingTop="10dp"
+        android:paddingRight="20dp"
+        android:paddingBottom="10dp">
+
+        <com.blankj.common.view.RotateView
+            android:layout_width="22dp"
+            android:layout_height="22dp"
+            android:background="@drawable/common_loading" />
+
+        <TextView
+            android:id="@+id/utilActionLoadingMsgTv"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="4dp"
+            android:lineSpacingExtra="2dp"
+            android:text="Loading..."
+            android:textColor="@color/white"
+            android:textSize="14dp" />
+
+    </LinearLayout>
+
+</FrameLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/layout/common_item.xml b/lib/common/src/main/res/layout/common_item.xml
new file mode 100644
index 0000000000..659bba48d7
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_item.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/commonItemRv"
+    style="@style/CommonScrollStyle"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content" />
diff --git a/lib/common/src/main/res/layout/common_item_title_click.xml b/lib/common/src/main/res/layout/common_item_title_click.xml
new file mode 100644
index 0000000000..8d1e544214
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_item_title_click.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_toLeftOf="@id/commonItemGoIv"
+        android:gravity="center_vertical"
+        android:minHeight="32dp"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/commonItemTitleTv"
+            style="@style/CommonItemTitleStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            tools:text="title" />
+
+        <com.blankj.base.view.EmptyGoneTextView
+            android:id="@+id/commonItemContentTv"
+            style="@style/CommonItemContentStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="@dimen/spacing_16"
+            android:gravity="right"
+            tools:text="content" />
+
+    </LinearLayout>
+
+    <ImageView
+        android:id="@+id/commonItemGoIv"
+        android:layout_width="16dp"
+        android:layout_height="16dp"
+        android:layout_alignParentRight="true"
+        android:layout_centerVertical="true"
+        android:src="@drawable/common_ic_item_go"
+        android:visibility="gone" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/layout/common_item_title_content.xml b/lib/common/src/main/res/layout/common_item_title_content.xml
new file mode 100644
index 0000000000..ed594ad07f
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_item_title_content.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <TextView
+        android:id="@+id/commonItemTitleTv"
+        style="@style/CommonItemTitleStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        tools:text="title" />
+
+    <com.blankj.base.view.EmptyGoneTextView
+        android:id="@+id/commonItemContentTv"
+        style="@style/CommonItemContentStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/commonItemTitleTv"
+        android:layout_marginTop="2dp"
+        tools:text="content" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/layout/common_item_title_image.xml b/lib/common/src/main/res/layout/common_item_title_image.xml
new file mode 100644
index 0000000000..0ef7e56f09
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_item_title_image.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <TextView
+        android:id="@+id/commonItemTitleTv"
+        style="@style/CommonItemTitleStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        tools:text="title" />
+
+    <ImageView
+        android:id="@+id/commonItemIv"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:src="@mipmap/ic_launcher" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/layout/common_item_title_seekbar.xml b/lib/common/src/main/res/layout/common_item_title_seekbar.xml
new file mode 100644
index 0000000000..7e343a3795
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_item_title_seekbar.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <TextView
+        android:id="@+id/commonItemTitleTv"
+        style="@style/CommonItemTitleStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        tools:text="title" />
+
+    <com.blankj.base.view.EmptyGoneTextView
+        android:id="@+id/commonItemContentTv"
+        style="@style/CommonItemContentStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        tools:text="content" />
+
+    <SeekBar
+        android:id="@+id/commonItemSb"
+        style="@style/CommonSeekBarStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/layout/common_item_title_switch.xml b/lib/common/src/main/res/layout/common_item_title_switch.xml
new file mode 100644
index 0000000000..b7dc4dcf2d
--- /dev/null
+++ b/lib/common/src/main/res/layout/common_item_title_switch.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_toLeftOf="@id/commonItemSwitch"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/commonItemTitleTv"
+            style="@style/CommonItemTitleStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            tools:text="title" />
+
+        <com.blankj.base.view.EmptyGoneTextView
+            android:id="@+id/commonItemContentTv"
+            style="@style/CommonItemContentStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="2dp"
+            tools:text="content" />
+
+    </LinearLayout>
+
+    <Switch
+        android:id="@+id/commonItemSwitch"
+        style="@style/CommonSwitchStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentRight="true"
+        android:layout_centerVertical="true"
+        android:layout_marginLeft="8dp" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/common/src/main/res/menu/common_drawer.xml b/lib/common/src/main/res/menu/common_drawer.xml
new file mode 100644
index 0000000000..07835b4363
--- /dev/null
+++ b/lib/common/src/main/res/menu/common_drawer.xml
@@ -0,0 +1,12 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/baseDrawerActionGitHub"
+        android:icon="@drawable/main_menu_github"
+        android:title="GitHub" />
+
+    <item
+        android:id="@+id/baseDrawerActionBlog"
+        android:icon="@drawable/main_menu_blog"
+        android:title="Blog" />
+</menu>
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/lib/common/src/main/res/mipmap-xhdpi/ic_launcher.png
similarity index 100%
rename from app/src/main/res/mipmap-xhdpi/ic_launcher.png
rename to lib/common/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/lib/common/src/main/res/values/colors.xml b/lib/common/src/main/res/values/colors.xml
new file mode 100644
index 0000000000..30b5c8c440
--- /dev/null
+++ b/lib/common/src/main/res/values/colors.xml
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimaryOrigin">#3F51B5</color>
+    <color name="colorPrimaryDarkOrigin">#303F9F</color>
+    <color name="colorAccentOrigin">#FF4081</color>
+
+    <color name="colorPrimary">#34A48E</color>
+    <color name="colorPrimaryHalfTrans">#8034A48E</color>
+    <color name="colorPrimaryDark">#245C50</color>
+    <color name="colorAccent">#FF73A3</color>
+    <color name="colorAccentHalfTrans">#80245C50</color>
+
+    <color name="white">#FFFFFF</color>
+    <color name="light_black">#191919</color>
+
+    <color name="rainbow_red">#bf0c43</color>
+    <color name="rainbow_yellow">#f9ba15</color>
+    <color name="rainbow_green">#8eac00</color>
+    <color name="rainbow_blue">#127a97</color>
+    <color name="rainbow_purple">#452b72</color>
+
+    <integer-array name="rainbow">
+        <item>@color/rainbow_red</item>
+        <item>@color/rainbow_yellow</item>
+        <item>@color/rainbow_green</item>
+        <item>@color/rainbow_blue</item>
+        <item>@color/rainbow_purple</item>
+    </integer-array>
+
+
+    <!--beautiful color-->
+    <color name="grapefruit">#ED5565</color>
+    <color name="grapefruitDark">#DA4453</color>
+
+    <color name="bittersweet">#FC6E51</color>
+    <color name="bittersweetDark">#E9573F</color>
+
+    <color name="sunflower">#FFCE54</color>
+    <color name="sunflowerDark">#F6BB42</color>
+
+    <color name="grass">#A0D468</color>
+    <color name="grassDark">#8CC152</color>
+
+    <color name="mint">#48CFAD</color>
+    <color name="mintDark">#37BC9B</color>
+
+    <color name="loveGreen">#62C554</color>
+    <color name="loveGreenDark">#479841</color>
+
+    <color name="aqua">#4FC1E9</color>
+    <color name="aquaDark">#3BAFDA</color>
+
+    <color name="blueJeans">#5D9CEC</color>
+    <color name="blueJeansDark">#4A89DC</color>
+
+    <color name="lavander">#AC92EC</color>
+    <color name="lavanderDark">#967ADC</color>
+
+    <color name="pinkRose">#EC87C0</color>
+    <color name="pinkRoseDark">#D770AD</color>
+
+    <color name="lightGray">#F5F7FA</color>
+    <color name="lightGrayDark">#E6E9ED</color>
+
+    <color name="mediumGray">#CCD1D9</color>
+    <color name="mediumGrayDark">#AAB2BD</color>
+
+    <color name="darkGray">#656D78</color>
+    <color name="darkGrayDark">#434A54</color>
+</resources>
diff --git a/lib/common/src/main/res/values/dimens.xml b/lib/common/src/main/res/values/dimens.xml
new file mode 100644
index 0000000000..621262fcc6
--- /dev/null
+++ b/lib/common/src/main/res/values/dimens.xml
@@ -0,0 +1,31 @@
+<resources>
+    <dimen name="radius_4">4dp</dimen>
+    <dimen name="radius_8">8dp</dimen>
+    <dimen name="radius_16">16dp</dimen>
+
+    <dimen name="spacing_6">6dp</dimen>
+    <dimen name="spacing_8">8dp</dimen>
+    <dimen name="spacing_16">16dp</dimen>
+    <dimen name="spacing_24">24dp</dimen>
+    <dimen name="spacing_128">128dp</dimen>
+
+    <dimen name="size_1">1dp</dimen>
+    <dimen name="size_2">2dp</dimen>
+    <dimen name="size_4">4dp</dimen>
+    <dimen name="size_6">6dp</dimen>
+    <dimen name="size_40">40dp</dimen>
+    <dimen name="size_160">160dp</dimen>
+
+    <dimen name="font_14">14sp</dimen>
+    <dimen name="font_16">16sp</dimen>
+    <dimen name="font_18">18sp</dimen>
+    <dimen name="font_20">20sp</dimen>
+    <dimen name="font_24">24sp</dimen>
+    <dimen name="font_40">40sp</dimen>
+
+    <dimen name="block_width">40dp</dimen>
+    <dimen name="block_low_height">8dp</dimen>
+    <dimen name="block_high_height">196dp</dimen>
+
+    <dimen name="offset_64">64dp</dimen>
+</resources>
diff --git a/lib/common/src/main/res/values/strings.xml b/lib/common/src/main/res/values/strings.xml
new file mode 100644
index 0000000000..a3ce462324
--- /dev/null
+++ b/lib/common/src/main/res/values/strings.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="github">https://github.com/Blankj/AndroidUtilCode</string>
+    <string name="blog">https://blankj.com</string>
+
+    <string name="core_util">Core Util</string>
+    <string name="sub_util">Sub Util</string>
+
+    <string name="author">Blankj</string>
+    <string name="demo_of_android_util_code">Demo of AndroidUtilCode</string>
+
+    <string name="navigation_drawer_open">navigation_drawer_open</string>
+    <string name="navigation_drawer_close">navigation_drawer_close</string>
+
+    <string name="permission_rationale_message">You have rejected us to apply for authorization, please agree to authorization, otherwise the function can\'t be used normally!</string>
+    <string name="permission_denied_forever_message">We need some of the permissions you rejected or the system failed to apply failed, please manually set to the page authorize, otherwise the function can\'t be used normally!</string>
+</resources>
diff --git a/lib/common/src/main/res/values/styles.xml b/lib/common/src/main/res/values/styles.xml
new file mode 100644
index 0000000000..6c012311cd
--- /dev/null
+++ b/lib/common/src/main/res/values/styles.xml
@@ -0,0 +1,90 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
+    </style>
+
+    <style name="SplashTheme" parent="AppTheme">
+        <!--        <item name="android:windowDisablePreview">true</item>-->
+    </style>
+
+
+    <style name="CommonItemTitleStyle">
+        <item name="android:textColor">@color/darkGrayDark</item>
+        <item name="android:textSize">@dimen/font_16</item>
+    </style>
+
+    <style name="CommonItemContentStyle">
+        <item name="android:textColor">@color/darkGray</item>
+        <item name="android:textSize">@dimen/font_14</item>
+    </style>
+
+    <style name="CommonTextStyle">
+        <item name="android:textSize">@dimen/font_16</item>
+        <item name="android:textColor">@color/darkGrayDark</item>
+    </style>
+
+    <style name="CommonScrollStyle">
+        <item name="android:overScrollMode">never</item>
+        <item name="android:scrollbarSize">@dimen/size_4</item>
+        <item name="android:fadeScrollbars">true</item>
+        <item name="android:scrollbarStyle">outsideOverlay</item>
+        <item name="android:scrollbarThumbVertical">@drawable/common_scrollbar_thumb</item>
+        <item name="android:scrollbars">vertical</item>
+        <item name="android:descendantFocusability">afterDescendants</item>
+    </style>
+
+    <style name="CommonWideBtnStyle" parent="CommonTextStyle">
+        <item name="android:textAllCaps">false</item>
+        <item name="android:paddingTop">@dimen/spacing_6</item>
+        <item name="android:paddingBottom">@dimen/spacing_6</item>
+        <item name="android:textColor">@drawable/common_button_txt_color</item>
+        <item name="android:background">@drawable/common_button_bg</item>
+    </style>
+
+    <style name="CommonSwitchStyle">
+        <item name="android:thumb">@drawable/common_switch_thumb</item>
+        <item name="android:track">@drawable/common_switch_track</item>
+        <item name="android:background">@android:color/transparent</item>
+    </style>
+
+    <style name="CommonSeekBarStyle">
+        <item name="android:progressDrawable">@drawable/common_seekbar_progress</item>
+        <item name="android:thumb">@drawable/common_seekbar_thumb</item>
+        <item name="android:background">@null</item>
+    </style>
+
+    <style name="CommonLoadingDialogStyle">
+        <item name="android:background">@android:color/transparent</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="statusBarBackground">@android:color/transparent</item>
+        <item name="android:windowIsFloating">false</item>
+    </style>
+
+    <style name="CommonContentDialogStyle">
+        <item name="android:background">@android:color/transparent</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:backgroundDimEnabled">true</item>
+        <item name="android:windowIsFloating">true</item>
+        <item name="android:windowMinWidthMajor">85%</item>
+        <item name="android:windowMinWidthMinor">85%</item>
+    </style>
+
+    <style name="AnimationActivity" parent="@android:style/Animation">
+        <!-- A 打开 B，B 的出现动画 -->
+        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
+        <!-- A 打开 B，A 的消失动画 -->
+        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
+        <!-- B 关闭到 A，A 的出现动画 *时长要小于 B 的消失动画，否则会闪烁* -->
+        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
+        <!-- B 关闭到 A，B 的消失动画 *时长要小于 B 的消失动画，否则会闪烁* -->
+        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
+    </style>
+</resources>
diff --git a/lib/resource/build.gradle b/lib/resource/build.gradle
deleted file mode 100644
index 99a53e6da1..0000000000
--- a/lib/resource/build.gradle
+++ /dev/null
@@ -1,11 +0,0 @@
-apply plugin: 'com.android.library'
-
-configAndroidDomain project
-
-android {
-    sourceSets {
-        main.res.srcDirs += 'src/main/res-base'
-        main.res.srcDirs += 'src/main/res-subutil'
-        main.res.srcDirs += 'src/main/res-utilcode'
-    }
-}
\ No newline at end of file
diff --git a/lib/resource/src/main/AndroidManifest.xml b/lib/resource/src/main/AndroidManifest.xml
deleted file mode 100644
index 1bbbcf6b90..0000000000
--- a/lib/resource/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1 +0,0 @@
-<manifest package="com.blankj.resource" />
diff --git a/lib/resource/src/main/res-base/anim/slide_in_left.xml b/lib/resource/src/main/res-base/anim/slide_in_left.xml
deleted file mode 100755
index fb683709c8..0000000000
--- a/lib/resource/src/main/res-base/anim/slide_in_left.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="300"
-        android:fromXDelta="100%"
-        android:toXDelta="0" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-base/anim/slide_in_right.xml b/lib/resource/src/main/res-base/anim/slide_in_right.xml
deleted file mode 100755
index 0284446a46..0000000000
--- a/lib/resource/src/main/res-base/anim/slide_in_right.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="300"
-        android:fromXDelta="-100%"
-        android:toXDelta="0" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-base/anim/slide_out_left.xml b/lib/resource/src/main/res-base/anim/slide_out_left.xml
deleted file mode 100755
index 1211489225..0000000000
--- a/lib/resource/src/main/res-base/anim/slide_out_left.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="300"
-        android:fromXDelta="0"
-        android:toXDelta="-100%" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-base/anim/slide_out_right.xml b/lib/resource/src/main/res-base/anim/slide_out_right.xml
deleted file mode 100755
index 4657316a5d..0000000000
--- a/lib/resource/src/main/res-base/anim/slide_out_right.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="300"
-        android:fromXDelta="0"
-        android:toXDelta="100%" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-base/drawable/main_avatar_round.png b/lib/resource/src/main/res-base/drawable/main_avatar_round.png
deleted file mode 100644
index f68a510bb4..0000000000
Binary files a/lib/resource/src/main/res-base/drawable/main_avatar_round.png and /dev/null differ
diff --git a/lib/resource/src/main/res-base/drawable/main_bg_header.jpeg b/lib/resource/src/main/res-base/drawable/main_bg_header.jpeg
deleted file mode 100644
index 875fc58c21..0000000000
Binary files a/lib/resource/src/main/res-base/drawable/main_bg_header.jpeg and /dev/null differ
diff --git a/lib/resource/src/main/res-base/drawable/main_menu_blog.xml b/lib/resource/src/main/res-base/drawable/main_menu_blog.xml
deleted file mode 100644
index 2186356ff7..0000000000
--- a/lib/resource/src/main/res-base/drawable/main_menu_blog.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportHeight="508.52"
-    android:viewportWidth="508.52">
-
-    <path
-        android:fillColor="#191919"
-        android:pathData="M254.26,0C113.845,0,0,113.845,0,254.26s113.845,254.26,254.26,254.26
-s254.26-113.845,254.26-254.26C508.52,113.813,394.675,0,254.26,0z
-M412.727,310.451c0,56.509-45.989,102.308-102.943,102.308
-H198.831c-56.891,0-103.102-45.735-103.102-102.308V198.132c0.032-56.541,46.18-102.371,103.102-102.371h51.964
-c56.954,0,102.53,42.525,102.53,99.066c0.731,10.584,10.298,19.8,21.167,19.8h17.766c11.378,0,20.5,11.95,20.5,23.233
-L412.727,310.451L412.727,310.451z" />
-    <path
-        android:fillColor="#191919"
-        android:pathData="M313.693,293.893H194.827c-10.901,0-19.8,8.899-19.8,19.801c0,10.87,8.931,19.8,19.8,19.8
-h118.866c10.901,0,19.8-8.931,19.8-19.8C333.494,302.792,324.594,293.893,313.693,293.893z" />
-    <path
-        android:fillColor="#191919"
-        android:pathData="M194.827,214.627h59.433c10.901,0,19.8-8.931,19.8-19.8c0-10.901-8.931-19.8-19.8-19.8h-59.433
-c-10.901,0-19.8,8.931-19.8,19.8C174.994,205.728,183.925,214.627,194.827,214.627z" />
-</vector>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-base/drawable/main_menu_github.xml b/lib/resource/src/main/res-base/drawable/main_menu_github.xml
deleted file mode 100644
index f526507c74..0000000000
--- a/lib/resource/src/main/res-base/drawable/main_menu_github.xml
+++ /dev/null
@@ -1,32 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportHeight="438.549"
-    android:viewportWidth="438.549">
-
-    <group>
-        <path
-            android:fillColor="#191919"
-            android:pathData="M409.132,114.573c-19.608-33.596-46.205-60.194-79.798-79.8C295.736,15.166,259.057,5.365,219.271,5.365
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-c5.046,3.041,9.089,5.618,12.135,7.708c17.705-4.947,35.976-7.421,54.818-7.421s37.117,2.474,54.823,7.421l10.849-6.849
-c7.419-4.57,16.18-8.758,26.262-12.565c10.088-3.805,17.802-4.853,23.134-3.138c8.562,21.509,9.325,40.922,2.279,58.24
-c15.036,16.18,22.559,35.787,22.559,58.817c0,16.178-1.958,30.497-5.853,42.966c-3.9,12.471-8.941,22.457-15.125,29.979
-c-6.191,7.521-13.901,13.85-23.131,18.986c-9.232,5.14-18.182,8.85-26.84,11.136c-8.662,2.286-18.415,4.004-29.263,5.146
-c9.894,8.562,14.842,22.077,14.842,40.539v60.237c0,3.422,1.19,6.279,3.572,8.562c2.379,2.279,6.136,2.95,11.276,1.995
-c44.163-14.653,80.185-41.062,108.068-79.226c27.88-38.161,41.825-81.126,41.825-128.906
-C438.536,184.851,428.728,148.168,409.132,114.573z" />
-    </group>
-</vector>
diff --git a/lib/resource/src/main/res-base/layout/activity_back.xml b/lib/resource/src/main/res-base/layout/activity_back.xml
deleted file mode 100644
index 6e3b6ce8b3..0000000000
--- a/lib/resource/src/main/res-base/layout/activity_back.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/root_layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white">
-
-    <android.support.design.widget.AppBarLayout
-        android:id="@+id/abl"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
-
-        <android.support.v7.widget.Toolbar
-            android:id="@+id/toolbar"
-            android:layout_width="match_parent"
-            android:layout_height="?attr/actionBarSize"
-            app:layout_scrollFlags="scroll|enterAlways" />
-    </android.support.design.widget.AppBarLayout>
-
-    <android.support.v4.widget.NestedScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <FrameLayout
-            android:id="@+id/activity_container"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-    </android.support.v4.widget.NestedScrollView>
-</android.support.design.widget.CoordinatorLayout>
diff --git a/lib/resource/src/main/res-base/layout/activity_drawer.xml b/lib/resource/src/main/res-base/layout/activity_drawer.xml
deleted file mode 100644
index 16b1fe3728..0000000000
--- a/lib/resource/src/main/res-base/layout/activity_drawer.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.DrawerLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/root_layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:fitsSystemWindows="true"
-    android:overScrollMode="never"
-    tools:openDrawer="start">
-
-    <FrameLayout
-        android:id="@+id/activity_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <android.support.design.widget.NavigationView
-        android:id="@+id/nav_view"
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:layout_gravity="start"
-        android:background="@color/white"
-        android:fitsSystemWindows="false"
-        app:headerLayout="@layout/activity_drawer_nav_header"
-        app:menu="@menu/main_drawer" />
-
-</android.support.v4.widget.DrawerLayout>
diff --git a/lib/resource/src/main/res-base/layout/activity_drawer_nav_header.xml b/lib/resource/src/main/res-base/layout/activity_drawer_nav_header.xml
deleted file mode 100755
index 93d5d641df..0000000000
--- a/lib/resource/src/main/res-base/layout/activity_drawer_nav_header.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="192dp"
-    android:theme="@style/ThemeOverlay.AppCompat.Dark">
-
-    <ImageView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="@color/colorPrimary"
-        android:scaleType="centerCrop"
-        android:src="@drawable/main_bg_header" />
-
-    <ImageView
-        android:id="@+id/iv_avatar"
-        android:layout_width="80dp"
-        android:layout_height="80dp"
-        android:layout_above="@+id/tv_desc"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:src="@drawable/main_avatar_round" />
-
-    <TextView
-        android:layout_width="match_parent"
-        android:layout_height="80dp"
-        android:layout_above="@+id/tv_desc"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_toRightOf="@id/iv_avatar"
-        android:gravity="center_vertical"
-        android:text="@string/author"
-        android:textColor="@color/white"
-        android:textSize="@dimen/font_40"
-        android:textStyle="bold" />
-
-    <TextView
-        android:id="@+id/tv_desc"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_marginBottom="@dimen/spacing_16"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginTop="@dimen/spacing_8"
-        android:text="@string/demo_of_android_util_code"
-        android:textColor="@color/white"
-        android:textSize="@dimen/font_16" />
-</RelativeLayout>
diff --git a/lib/resource/src/main/res-base/layout/activity_main.xml b/lib/resource/src/main/res-base/layout/activity_main.xml
deleted file mode 100644
index 55478c0d0c..0000000000
--- a/lib/resource/src/main/res-base/layout/activity_main.xml
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <android.support.design.widget.AppBarLayout
-        android:layout_width="match_parent"
-        android:layout_height="192dp"
-        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
-        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
-
-        <android.support.design.widget.CollapsingToolbarLayout
-            android:id="@+id/ctl"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:contentScrim="@color/colorPrimary"
-            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
-
-            <ImageView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:padding="@dimen/spacing_16"
-                android:scaleType="fitCenter"
-                android:src="@mipmap/ic_launcher"
-                app:layout_collapseMode="parallax"
-                app:layout_collapseParallaxMultiplier="0.6" />
-
-            <android.support.v7.widget.Toolbar
-                android:id="@+id/toolbar"
-                android:layout_width="match_parent"
-                android:layout_height="?attr/actionBarSize"
-                app:layout_collapseMode="pin" />
-
-        </android.support.design.widget.CollapsingToolbarLayout>
-    </android.support.design.widget.AppBarLayout>
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <android.support.v4.widget.NestedScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior">
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center_horizontal"
-            android:orientation="vertical"
-            android:paddingLeft="@dimen/spacing_16"
-            android:paddingRight="@dimen/spacing_16">
-
-            <Button
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:onClick="coreUtilClick"
-                android:text="@string/core_util" />
-
-            <Button
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:onClick="subUtilClick"
-                android:text="@string/sub_util" />
-
-        </LinearLayout>
-    </android.support.v4.widget.NestedScrollView>
-</android.support.design.widget.CoordinatorLayout>
diff --git a/lib/resource/src/main/res-base/menu/main_drawer.xml b/lib/resource/src/main/res-base/menu/main_drawer.xml
deleted file mode 100644
index 9a879e2789..0000000000
--- a/lib/resource/src/main/res-base/menu/main_drawer.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item
-        android:id="@+id/action_git_hub"
-        android:icon="@drawable/main_menu_github"
-        android:title="@string/git_hub" />
-
-    <item
-        android:id="@+id/action_blog"
-        android:icon="@drawable/main_menu_blog"
-        android:title="@string/blog" />
-</menu>
diff --git a/lib/resource/src/main/res-base/values-v26/styles.xml b/lib/resource/src/main/res-base/values-v26/styles.xml
deleted file mode 100644
index 60201b597e..0000000000
--- a/lib/resource/src/main/res-base/values-v26/styles.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
-        <item name="android:windowActionBar">false</item>
-        <!--slider-->
-        <item name="android:windowIsTranslucent">false</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
-    <style name="TextStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-    </style>
-
-    <style name="WideBtnStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-        <item name="android:textAllCaps">false</item>
-    </style>
-
-    <style name="AnimationActivity" parent="@android:style/Animation.Translucent">
-        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
-        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
-        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
-        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
-    </style>
-</resources>
diff --git a/lib/resource/src/main/res-base/values-v27/styles.xml b/lib/resource/src/main/res-base/values-v27/styles.xml
deleted file mode 100644
index 4c19777add..0000000000
--- a/lib/resource/src/main/res-base/values-v27/styles.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
-        <item name="android:windowActionBar">false</item>
-        <!--slider-->
-        <item name="android:windowIsTranslucent">true</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
-    <style name="TextStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-    </style>
-
-    <style name="WideBtnStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-        <item name="android:textAllCaps">false</item>
-    </style>
-
-    <style name="AnimationActivity" parent="@android:style/Animation.Translucent">
-        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
-        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
-        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
-        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
-    </style>
-</resources>
diff --git a/lib/resource/src/main/res-base/values/colors.xml b/lib/resource/src/main/res-base/values/colors.xml
deleted file mode 100644
index 78d296b974..0000000000
--- a/lib/resource/src/main/res-base/values/colors.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="colorPrimaryOrigin">#3F51B5</color>
-    <color name="colorPrimaryDarkOrigin">#303F9F</color>
-    <color name="colorAccentOrigin">#FF4081</color>
-
-    <color name="colorPrimary">#34A48E</color>
-    <color name="colorPrimaryHalfTrans">#8034A48E</color>
-    <color name="colorPrimaryDark">#245C50</color>
-    <color name="colorAccent">#FF73A3</color>
-    <color name="colorAccentHalfTrans">#80245C50</color>
-
-    <color name="white">#FFFFFF</color>
-    <color name="light_black">#191919</color>
-
-    <color name="rainbow_red">#bf0c43</color>
-    <color name="rainbow_yellow">#f9ba15</color>
-    <color name="rainbow_green">#8eac00</color>
-    <color name="rainbow_blue">#127a97</color>
-    <color name="rainbow_purple">#452b72</color>
-
-    <integer-array name="rainbow">
-        <item>@color/rainbow_red</item>
-        <item>@color/rainbow_yellow</item>
-        <item>@color/rainbow_green</item>
-        <item>@color/rainbow_blue</item>
-        <item>@color/rainbow_purple</item>
-    </integer-array>
-</resources>
diff --git a/lib/resource/src/main/res-base/values/dimens.xml b/lib/resource/src/main/res-base/values/dimens.xml
deleted file mode 100644
index d470c5e816..0000000000
--- a/lib/resource/src/main/res-base/values/dimens.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<resources>
-    <dimen name="radius_16">16dp</dimen>
-
-    <dimen name="spacing_8">8dp</dimen>
-    <dimen name="spacing_16">16dp</dimen>
-    <dimen name="spacing_24">24dp</dimen>
-    <dimen name="spacing_128">128dp</dimen>
-
-    <dimen name="size_40">40dp</dimen>
-    <dimen name="size_160">160dp</dimen>
-
-    <dimen name="font_16">16sp</dimen>
-    <dimen name="font_20">20sp</dimen>
-    <dimen name="font_24">24sp</dimen>
-    <dimen name="font_40">40sp</dimen>
-
-    <dimen name="block_width">40dp</dimen>
-    <dimen name="block_low_height">8dp</dimen>
-    <dimen name="block_high_height">196dp</dimen>
-
-    <dimen name="offset_64">64dp</dimen>
-</resources>
diff --git a/lib/resource/src/main/res-base/values/strings.xml b/lib/resource/src/main/res-base/values/strings.xml
deleted file mode 100644
index 5ea9595328..0000000000
--- a/lib/resource/src/main/res-base/values/strings.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="core_util">Core Util</string>
-    <string name="sub_util">Sub Util</string>
-
-    <string name="author">Blankj</string>
-    <string name="demo_of_android_util_code">Demo of AndroidUtilCode</string>
-
-    <string name="navigation_drawer_open">navigation_drawer_open</string>
-    <string name="navigation_drawer_close">navigation_drawer_close</string>
-
-    <string name="git_hub">GitHub</string>
-    <string name="blog">Blog</string>
-
-    <string name="permission_rationale_message">You have rejected us to apply for authorization, please agree to authorization, otherwise the function can\'t be used normally!</string>
-    <string name="permission_denied_forever_message">We need some of the permissions you rejected or the system failed to apply failed, please manually set to the page authorize, otherwise the function can\'t be used normally!</string>
-
-    <string name="crash_restart_tip">The application crashes, does it need to be restarted?</string>
-</resources>
diff --git a/lib/resource/src/main/res-base/values/styles.xml b/lib/resource/src/main/res-base/values/styles.xml
deleted file mode 100644
index 4c19777add..0000000000
--- a/lib/resource/src/main/res-base/values/styles.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-        <item name="android:windowAnimationStyle">@style/AnimationActivity</item>
-        <item name="android:windowActionBar">false</item>
-        <!--slider-->
-        <item name="android:windowIsTranslucent">true</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-    </style>
-
-    <style name="TextStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-    </style>
-
-    <style name="WideBtnStyle">
-        <item name="android:textSize">@dimen/font_24</item>
-        <item name="android:textColor">@color/light_black</item>
-        <item name="android:textAllCaps">false</item>
-    </style>
-
-    <style name="AnimationActivity" parent="@android:style/Animation.Translucent">
-        <item name="android:activityOpenEnterAnimation">@anim/slide_in_left</item>
-        <item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
-        <item name="android:activityCloseEnterAnimation">@anim/slide_in_right</item>
-        <item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
-    </style>
-</resources>
diff --git a/lib/resource/src/main/res-subutil/layout/activity_brightness.xml b/lib/resource/src/main/res-subutil/layout/activity_brightness.xml
deleted file mode 100644
index dbc7a934ce..0000000000
--- a/lib/resource/src/main/res-subutil/layout/activity_brightness.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_brightness"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_brightness"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8" />
-
-        <TextView
-            android:id="@+id/tv_window_brightness"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_window_brightness"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8" />
-
-        <ToggleButton
-            android:id="@+id/tb_set_auto_brightness_enable"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:textOff="@string/brightness_set_auto_brightness_enable"
-            android:textOn="@string/brightness_set_auto_brightness_disable" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-subutil/layout/activity_location.xml b/lib/resource/src/main/res-subutil/layout/activity_location.xml
deleted file mode 100755
index 46cdb8d2c4..0000000000
--- a/lib/resource/src/main/res-subutil/layout/activity_location.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_location"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-subutil/layout/activity_meta_data.xml b/lib/resource/src/main/res-subutil/layout/activity_meta_data.xml
deleted file mode 100755
index 058b2d8a4f..0000000000
--- a/lib/resource/src/main/res-subutil/layout/activity_meta_data.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_metadata"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-subutil/layout/activity_pinyin.xml b/lib/resource/src/main/res-subutil/layout/activity_pinyin.xml
deleted file mode 100755
index 1c85ce928c..0000000000
--- a/lib/resource/src/main/res-subutil/layout/activity_pinyin.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_pinyin"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-subutil/layout/activity_util_sub.xml b/lib/resource/src/main/res-subutil/layout/activity_util_sub.xml
deleted file mode 100644
index 1316d6bfcf..0000000000
--- a/lib/resource/src/main/res-subutil/layout/activity_util_sub.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16">
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="brightnessClick"
-        android:text="@string/demo_brightness" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="flashlightClick"
-        android:text="@string/demo_flashlight" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="locationClick"
-        android:text="@string/demo_location" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="pinyinClick"
-        android:text="@string/demo_pinyin" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-subutil/values/strings.xml b/lib/resource/src/main/res-subutil/values/strings.xml
deleted file mode 100644
index 69bfb7c30a..0000000000
--- a/lib/resource/src/main/res-subutil/values/strings.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="demo_flashlight">FlashlightUtils Demo</string>
-    <string name="demo_brightness">Brightness Demo</string>
-    <string name="demo_location">LocationUtils Demo</string>
-    <string name="demo_pinyin">PinyinUtils Demo</string>
-
-    <!-- Brightness 相关 -->
-    <string name="brightness_set_auto_brightness_enable">Set Auto Brightness Enable</string>
-    <string name="brightness_set_auto_brightness_disable">Set Auto Brightness Disable</string>
-
-    <!-- Flashlight相关 -->
-    <string name="flashlight_on">Set Flashlight On</string>
-    <string name="flashlight_off">Set Flashlight Off</string>
-
-
-</resources>
diff --git a/lib/resource/src/main/res-utilcode/anim/fade_in_1000.xml b/lib/resource/src/main/res-utilcode/anim/fade_in_1000.xml
deleted file mode 100644
index 644fafcbad..0000000000
--- a/lib/resource/src/main/res-utilcode/anim/fade_in_1000.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<alpha xmlns:android="http://schemas.android.com/apk/res/android"
-    android:duration="1000"
-    android:fromAlpha="0.0"
-    android:interpolator="@android:interpolator/accelerate_quad"
-    android:toAlpha="1.0" />
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/anim/fade_out_1000.xml b/lib/resource/src/main/res-utilcode/anim/fade_out_1000.xml
deleted file mode 100644
index 30b74cb723..0000000000
--- a/lib/resource/src/main/res-utilcode/anim/fade_out_1000.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<alpha xmlns:android="http://schemas.android.com/apk/res/android"
-    android:duration="1000"
-    android:fromAlpha="1.0"
-    android:interpolator="@android:interpolator/accelerate_quad"
-    android:toAlpha="0.0" />
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/anim/slide_in_right_1000.xml b/lib/resource/src/main/res-utilcode/anim/slide_in_right_1000.xml
deleted file mode 100755
index f70f611fd5..0000000000
--- a/lib/resource/src/main/res-utilcode/anim/slide_in_right_1000.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="1000"
-        android:fromXDelta="100%"
-        android:toXDelta="0" />
-    <alpha
-        android:duration="1000"
-        android:fromAlpha="0.0"
-        android:toAlpha="1.0" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/anim/slide_out_left_1000.xml b/lib/resource/src/main/res-utilcode/anim/slide_out_left_1000.xml
deleted file mode 100755
index 6c000c2b30..0000000000
--- a/lib/resource/src/main/res-utilcode/anim/slide_out_left_1000.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <translate
-        android:duration="1000"
-        android:fromXDelta="0"
-        android:toXDelta="-100%" />
-    <alpha
-        android:duration="1000"
-        android:fromAlpha="1.0"
-        android:toAlpha="0.0" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/animator/fragment_slide_left_enter.xml b/lib/resource/src/main/res-utilcode/animator/fragment_slide_left_enter.xml
deleted file mode 100644
index 337e78d490..0000000000
--- a/lib/resource/src/main/res-utilcode/animator/fragment_slide_left_enter.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <objectAnimator
-        android:duration="@android:integer/config_mediumAnimTime"
-        android:interpolator="@android:interpolator/decelerate_quint"
-        android:propertyName="translationX"
-        android:valueFrom="100dp"
-        android:valueTo="0dp"
-        android:valueType="floatType" />
-    <objectAnimator
-        android:duration="@android:integer/config_mediumAnimTime"
-        android:interpolator="@android:interpolator/decelerate_quint"
-        android:propertyName="alpha"
-        android:valueFrom="0.0"
-        android:valueTo="1.0"
-        android:valueType="floatType" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/animator/fragment_slide_left_exit.xml b/lib/resource/src/main/res-utilcode/animator/fragment_slide_left_exit.xml
deleted file mode 100644
index 3c36fd51f7..0000000000
--- a/lib/resource/src/main/res-utilcode/animator/fragment_slide_left_exit.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <objectAnimator
-        android:duration="@android:integer/config_mediumAnimTime"
-        android:interpolator="@android:interpolator/decelerate_quint"
-        android:propertyName="translationX"
-        android:valueFrom="0dp"
-        android:valueTo="-100dp"
-        android:valueType="floatType" />
-    <objectAnimator
-        android:duration="@android:integer/config_mediumAnimTime"
-        android:interpolator="@android:interpolator/decelerate_quint"
-        android:propertyName="alpha"
-        android:valueFrom="1.0"
-        android:valueTo="0.0"
-        android:valueType="floatType" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/animator/fragment_slide_right_enter.xml b/lib/resource/src/main/res-utilcode/animator/fragment_slide_right_enter.xml
deleted file mode 100644
index eaa8aa9c26..0000000000
--- a/lib/resource/src/main/res-utilcode/animator/fragment_slide_right_enter.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <objectAnimator
-        android:duration="@android:integer/config_mediumAnimTime"
-        android:interpolator="@android:interpolator/decelerate_quint"
-        android:propertyName="translationX"
-        android:valueFrom="-100dp"
-        android:valueTo="0dp"
-        android:valueType="floatType" />
-    <objectAnimator
-        android:duration="@android:integer/config_mediumAnimTime"
-        android:interpolator="@android:interpolator/decelerate_quint"
-        android:propertyName="alpha"
-        android:valueFrom="0.0"
-        android:valueTo="1.0"
-        android:valueType="floatType" />
-</set>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/animator/fragment_slide_right_exit.xml b/lib/resource/src/main/res-utilcode/animator/fragment_slide_right_exit.xml
deleted file mode 100644
index 1bed31ecb6..0000000000
--- a/lib/resource/src/main/res-utilcode/animator/fragment_slide_right_exit.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
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diff --git a/lib/resource/src/main/res-utilcode/drawable/bar_status_alpha_bg.png b/lib/resource/src/main/res-utilcode/drawable/bar_status_alpha_bg.png
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deleted file mode 100644
index 16e56b7144..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/bar_status_custom.xml
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diff --git a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_alpha.xml b/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_alpha.xml
deleted file mode 100644
index cd1aae4cd2..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_alpha.xml
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diff --git a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_color.xml b/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_color.xml
deleted file mode 100644
index 673c00eb93..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_color.xml
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diff --git a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_custom.xml b/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_custom.xml
deleted file mode 100644
index be01a22d9b..0000000000
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diff --git a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_image.xml b/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_image.xml
deleted file mode 100644
index a14f3af0a4..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/bar_status_nav_image.xml
+++ /dev/null
@@ -1,34 +0,0 @@
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-<vector xmlns:android="http://schemas.android.com/apk/res/android"
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-    android:height="24dp"
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-    <path
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\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/drawable/fragment_nav.xml b/lib/resource/src/main/res-utilcode/drawable/fragment_nav.xml
deleted file mode 100644
index 353532f4c7..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/fragment_nav.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="1024"
-    android:viewportHeight="1024">
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-    <path
-        android:fillColor="#FFFFFFFF"
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\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/drawable/image_lena.png b/lib/resource/src/main/res-utilcode/drawable/image_lena.png
deleted file mode 100644
index fa49ea640b..0000000000
Binary files a/lib/resource/src/main/res-utilcode/drawable/image_lena.png and /dev/null differ
diff --git a/lib/resource/src/main/res-utilcode/drawable/snackbar_custom_bg.xml b/lib/resource/src/main/res-utilcode/drawable/snackbar_custom_bg.xml
deleted file mode 100644
index 729e6a4065..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/snackbar_custom_bg.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <solid android:color="@color/colorAccent" />
-    <corners
-        android:topLeftRadius="@dimen/radius_16"
-        android:topRightRadius="@dimen/radius_16" />
-
-</shape>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/drawable/span_cheetah.png b/lib/resource/src/main/res-utilcode/drawable/span_cheetah.png
deleted file mode 100755
index dcdf7de131..0000000000
Binary files a/lib/resource/src/main/res-utilcode/drawable/span_cheetah.png and /dev/null differ
diff --git a/lib/resource/src/main/res-utilcode/drawable/span_shape_block_high.xml b/lib/resource/src/main/res-utilcode/drawable/span_shape_block_high.xml
deleted file mode 100644
index 22775a2e99..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/span_shape_block_high.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <solid android:color="@color/colorAccent" />
-    <size
-        android:width="@dimen/block_width"
-        android:height="@dimen/block_high_height" />
-    <stroke
-        android:width="5dp"
-        android:color="@color/colorPrimary" />
-
-</shape>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/drawable/span_shape_block_low.xml b/lib/resource/src/main/res-utilcode/drawable/span_shape_block_low.xml
deleted file mode 100644
index 991a401c7f..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/span_shape_block_low.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <solid android:color="@color/colorAccent" />
-    <size
-        android:width="@dimen/block_width"
-        android:height="@dimen/block_low_height" />
-    <stroke
-        android:width="1dp"
-        android:color="@color/colorPrimary" />
-
-</shape>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/drawable/toast_shape_round_rect.xml b/lib/resource/src/main/res-utilcode/drawable/toast_shape_round_rect.xml
deleted file mode 100644
index d2176a3488..0000000000
--- a/lib/resource/src/main/res-utilcode/drawable/toast_shape_round_rect.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <solid android:color="@color/colorAccent" />
-    <corners android:radius="@dimen/radius_16" />
-    <padding
-        android:bottom="@dimen/spacing_16"
-        android:left="@dimen/spacing_16"
-        android:right="@dimen/spacing_16"
-        android:top="@dimen/spacing_16" />
-
-</shape>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout-land/activity_screen_adapt.xml b/lib/resource/src/main/res-utilcode/layout-land/activity_screen_adapt.xml
deleted file mode 100644
index 8cdb4055fd..0000000000
--- a/lib/resource/src/main/res-utilcode/layout-land/activity_screen_adapt.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:ignore="MissingDefaultResource">
-
-    <RelativeLayout
-        android:layout_width="2000dp"
-        android:layout_height="match_parent">
-
-        <TextView
-            android:id="@+id/tv_up"
-            style="@style/TextStyle"
-            android:layout_width="2000dp"
-            android:layout_height="360dp"
-            android:layout_alignParentTop="true"
-            android:background="@color/colorAccentHalfTrans"
-            android:gravity="center_vertical"
-            android:text="360dp" />
-
-        <TextView
-            android:id="@+id/tv_down"
-            style="@style/TextStyle"
-            android:layout_width="2000dp"
-            android:layout_height="360dp"
-            android:layout_alignParentBottom="true"
-            android:background="@color/colorPrimaryHalfTrans"
-            android:gravity="center_vertical"
-            android:text="360dp" />
-
-    </RelativeLayout>
-</HorizontalScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout-port/activity_screen_adapt.xml b/lib/resource/src/main/res-utilcode/layout-port/activity_screen_adapt.xml
deleted file mode 100644
index 95992c8c97..0000000000
--- a/lib/resource/src/main/res-utilcode/layout-port/activity_screen_adapt.xml
+++ /dev/null
@@ -1,70 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:ignore="MissingDefaultResource">
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="2000dp">
-
-        <LinearLayout
-            android:id="@+id/ll_container"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="vertical">
-
-            <Button
-                android:id="@+id/btn_show_system_toast"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_system_toast" />
-
-            <Button
-                android:id="@+id/btn_show_util_toast"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_util_toast" />
-
-            <Button
-                android:id="@+id/btn_system_dialog"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_system_dialog" />
-
-            <Button
-                android:id="@+id/btn_system_dialog_without_adapt"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/adapt_screen_system_dialog_without_adapt" />
-
-        </LinearLayout>
-
-        <TextView
-            style="@style/TextStyle"
-            android:layout_width="360dp"
-            android:layout_height="2000dp"
-            android:layout_alignParentLeft="true"
-            android:layout_below="@id/ll_container"
-            android:background="@color/colorAccentHalfTrans"
-            android:gravity="center_horizontal"
-            android:text="360dp" />
-
-        <TextView
-            style="@style/TextStyle"
-            android:layout_width="360dp"
-            android:layout_height="2000dp"
-            android:layout_alignParentRight="true"
-            android:layout_below="@id/ll_container"
-            android:background="@color/colorPrimaryHalfTrans"
-            android:gravity="center_horizontal"
-            android:text="360dp" />
-
-    </RelativeLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_activity.xml b/lib/resource/src/main/res-utilcode/layout/activity_activity.xml
deleted file mode 100644
index 8057bdf6db..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_activity.xml
+++ /dev/null
@@ -1,219 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <ImageView
-        android:id="@+id/view_shared_element"
-        android:layout_width="@dimen/size_40"
-        android:layout_height="@dimen/size_40"
-        android:src="@drawable/main_avatar_round"
-        android:transitionName="@string/activity_shared_element" />
-
-    <TextView
-        android:id="@+id/tv_about_activity"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_clz"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_clz" />
-
-    <Button
-        android:id="@+id/btn_clz_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_clz_opt" />
-
-    <Button
-        android:id="@+id/btn_clz_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_clz_anim" />
-
-    <Button
-        android:id="@+id/btn_act_clz"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz" />
-
-    <Button
-        android:id="@+id/btn_act_clz_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz_opt" />
-
-    <Button
-        android:id="@+id/btn_act_clz_shared_element"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz_shared_element" />
-
-    <Button
-        android:id="@+id/btn_act_clz_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_clz_anim" />
-
-    <Button
-        android:id="@+id/btn_pkg_cls"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_pkg_cls" />
-
-    <Button
-        android:id="@+id/btn_pkg_cls_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_pkg_cls_opt" />
-
-    <Button
-        android:id="@+id/btn_pkg_cls_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_pkg_cls_anim" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls_opt" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls_shared_element"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls_shared_element" />
-
-    <Button
-        android:id="@+id/btn_act_pkg_cls_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_pkg_cls_anim" />
-
-    <Button
-        android:id="@+id/btn_intent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent" />
-
-    <Button
-        android:id="@+id/btn_intent_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent_opt" />
-
-    <Button
-        android:id="@+id/btn_intent_shared_element"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent_shared_element" />
-
-    <Button
-        android:id="@+id/btn_intent_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intent_anim" />
-
-    <Button
-        android:id="@+id/btn_intents"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intents" />
-
-    <Button
-        android:id="@+id/btn_intents_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intents_opt" />
-
-    <Button
-        android:id="@+id/btn_intents_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_intents_anim" />
-
-    <Button
-        android:id="@+id/btn_act_intents"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_intents" />
-
-    <Button
-        android:id="@+id/btn_act_intents_opt"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_intents_opt" />
-
-    <Button
-        android:id="@+id/btn_act_intents_anim"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_act_intents_anim" />
-
-    <Button
-        android:id="@+id/btn_start_home_activity"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_start_home_activity" />
-
-    <Button
-        android:id="@+id/btn_finish_activity"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_finish_activity" />
-
-    <Button
-        android:id="@+id/btn_finish_to_activity"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_finish_to_activity" />
-
-    <Button
-        android:id="@+id/btn_finish_all_activities"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/activity_finish_all_activities" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_activity_sub.xml b/lib/resource/src/main/res-utilcode/layout/activity_activity_sub.xml
deleted file mode 100644
index fe518ab2d0..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_activity_sub.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/ll_root"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    android:padding="@dimen/spacing_16">
-
-    <ImageView
-        android:id="@+id/view_shared_element"
-        android:layout_width="@dimen/size_160"
-        android:layout_height="@dimen/size_160"
-        android:src="@drawable/main_avatar_round"
-        android:transitionName="@string/activity_shared_element" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_adapt_close.xml b/lib/resource/src/main/res-utilcode/layout/activity_adapt_close.xml
deleted file mode 100644
index c33fa1c293..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_adapt_close.xml
+++ /dev/null
@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:context=".feature.core.adaptScreen.CloseAdaptActivity">
-
-    <android.support.constraint.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <TextView
-            android:id="@+id/closeTvTip"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center"
-            android:text="Close Adapt\npt equals dp"
-            android:textColor="@android:color/black"
-            android:textSize="30sp" />
-
-        <TextView
-            android:id="@+id/closeTv0"
-            android:layout_width="match_parent"
-            android:layout_height="200dp"
-            android:background="@color/colorAccentOrigin"
-            android:gravity="center"
-            android:text="Height: 200dp\nFont: 30dp"
-            android:textColor="@android:color/black"
-            android:textSize="30dp"
-            app:layout_constraintTop_toBottomOf="@id/closeTvTip" />
-
-        <TextView
-            android:layout_width="match_parent"
-            android:layout_height="200pt"
-            android:background="@color/colorPrimaryOrigin"
-            android:gravity="center"
-            android:text="Height: 200pt\nFont: 30pt"
-            android:textColor="@android:color/black"
-            android:textSize="30pt"
-            app:layout_constraintTop_toBottomOf="@id/closeTv0" />
-
-    </android.support.constraint.ConstraintLayout>
-
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_adapt_height.xml b/lib/resource/src/main/res-utilcode/layout/activity_adapt_height.xml
deleted file mode 100644
index 1e234a46c2..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_adapt_height.xml
+++ /dev/null
@@ -1,99 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<HorizontalScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:context=".feature.core.adaptScreen.HeightActivity">
-
-    <android.support.constraint.ConstraintLayout
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent">
-
-        <FrameLayout
-            android:id="@+id/heightFl0"
-            android:layout_width="360pt"
-            android:layout_height="match_parent"
-            android:background="@color/colorPrimaryOrigin">
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="960pt"
-                android:layout_gravity="top"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Height: 960pt\nFont: 30pt"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="960pt"
-                android:layout_gravity="bottom"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="Height: 960pt\nFont: 30sp"
-                android:textSize="30sp" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/heightFl1"
-            android:layout_width="360pt"
-            android:layout_height="1920pt"
-            app:layout_constraintLeft_toRightOf="@id/heightFl0">
-
-            <WebView
-                android:id="@+id/heightVebView"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:gravity="center"
-                android:text="WebView\nHeight: 1920pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <LinearLayout
-            android:layout_width="360pt"
-            android:layout_height="match_parent"
-            android:orientation="vertical"
-            app:layout_constraintLeft_toRightOf="@id/heightFl1">
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="320pt"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="1\nHeight: 320pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="640pt"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="2\nHeight: 640pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="960pt"
-                android:background="@color/colorPrimaryDarkOrigin"
-                android:gravity="center"
-                android:text="3\nHeight: 960pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-        </LinearLayout>
-
-
-    </android.support.constraint.ConstraintLayout>
-
-</HorizontalScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_adapt_screen.xml b/lib/resource/src/main/res-utilcode/layout/activity_adapt_screen.xml
deleted file mode 100644
index 162c6eda6b..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_adapt_screen.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:padding="16dp"
-    tools:context=".feature.core.adaptScreen.AdaptScreenActivity">
-
-    <Button
-        android:id="@+id/adaptWidthBtn"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Adapt Width" />
-
-    <Button
-        android:id="@+id/adaptHeightBtn"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Adapt Height"
-        app:layout_constraintTop_toBottomOf="@id/adaptWidthBtn" />
-
-    <Button
-        android:id="@+id/closeAdaptBtn"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Close Adapt pt equals dp"
-        app:layout_constraintTop_toBottomOf="@id/adaptHeightBtn" />
-
-</android.support.constraint.ConstraintLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_adapt_width.xml b/lib/resource/src/main/res-utilcode/layout/activity_adapt_width.xml
deleted file mode 100644
index 38c81a9acb..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_adapt_width.xml
+++ /dev/null
@@ -1,153 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    tools:context=".feature.core.adaptScreen.WidthActivity">
-
-    <android.support.constraint.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <FrameLayout
-            android:id="@+id/widthFl0"
-            android:layout_width="match_parent"
-            android:layout_height="270pt"
-            app:layout_constraintLeft_toLeftOf="parent">
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="start"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Width: 540pt\nFont: 30pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="end"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="Width: 540pt\nFont: 30sp"
-                android:textColor="@android:color/black"
-                android:textSize="30sp" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/widthFl1"
-            android:layout_width="1080pt"
-            android:layout_height="270pt"
-            app:layout_constraintTop_toBottomOf="@id/widthFl0">
-
-            <WebView
-                android:id="@+id/widthVebView"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent" />
-
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:gravity="center"
-                android:text="WebView\nWidth: 1080pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/widthFl2"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@id/widthFl1">
-
-            <ImageView
-                android:layout_width="540pt"
-                android:layout_height="wrap_content"
-                android:layout_gravity="start"
-                android:adjustViewBounds="true"
-                android:src="@drawable/image_lena" />
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="center_vertical|end"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Left ImageView\nWidth: 540pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/widthFl3"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@id/widthFl2">
-
-            <ImageView
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="start"
-                android:adjustViewBounds="true"
-                android:src="@drawable/image_lena" />
-
-            <TextView
-                android:layout_width="540pt"
-                android:layout_height="match_parent"
-                android:layout_gravity="center_vertical|end"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="Left ImageView\nWidth: wrap_content"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </FrameLayout>
-
-        <LinearLayout
-            android:id="@+id/widthLl0"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:layout_constraintTop_toBottomOf="@id/widthFl3">
-
-            <TextView
-                android:layout_width="180pt"
-                android:layout_height="270pt"
-                android:background="@color/colorAccentOrigin"
-                android:gravity="center"
-                android:text="1\nWidth: 180pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:id="@+id/width2Tv"
-                android:layout_width="360pt"
-                android:layout_height="270pt"
-                android:background="@color/colorPrimaryOrigin"
-                android:gravity="center"
-                android:text="2\nWidth: 360pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-            <TextView
-                android:id="@+id/width3Tv"
-                android:layout_width="540pt"
-                android:layout_height="270pt"
-                android:background="@color/colorPrimaryDarkOrigin"
-                android:gravity="center"
-                android:text="3\nWidth: 540pt"
-                android:textColor="@android:color/black"
-                android:textSize="30pt" />
-
-        </LinearLayout>
-
-    </android.support.constraint.ConstraintLayout>
-
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_app.xml b/lib/resource/src/main/res-utilcode/layout/activity_app.xml
deleted file mode 100644
index 34565cad80..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_app.xml
+++ /dev/null
@@ -1,72 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_app"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_install_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_install" />
-
-    <Button
-        android:id="@+id/btn_install_app_silent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_install_silent" />
-
-    <Button
-        android:id="@+id/btn_uninstall_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_uninstall" />
-
-    <Button
-        android:id="@+id/btn_uninstall_app_silent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_uninstall_silent" />
-
-    <Button
-        android:id="@+id/btn_launch_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_launch" />
-
-    <Button
-        android:id="@+id/btn_relaunch_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_relaunch" />
-
-    <Button
-        android:id="@+id/btn_launch_app_details_settings"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_launch_details_settings" />
-
-    <Button
-        android:id="@+id/btn_exit_app"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/app_exit" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar.xml
deleted file mode 100644
index b8ff446b81..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar.xml
+++ /dev/null
@@ -1,96 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:text="@string/bar_about_status_bar" />
-
-    <Button
-        android:id="@+id/btn_status_bar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_about" />
-
-    <Button
-        android:id="@+id/btn_status_bar_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_color" />
-
-    <Button
-        android:id="@+id/btn_status_bar_alpha"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_alpha" />
-
-    <Button
-        android:id="@+id/btn_status_bar_image_view"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_image_view" />
-
-    <Button
-        android:id="@+id/btn_status_bar_fragment"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_fragment" />
-
-    <Button
-        android:id="@+id/btn_status_bar_swipe_back"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_swipe_back" />
-
-    <Button
-        android:id="@+id/btn_status_bar_drawer"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_set_drawer" />
-
-    <TextView
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/spacing_16"
-        android:gravity="center_horizontal"
-        android:text="@string/bar_about_notification_bar" />
-
-    <Button
-        android:id="@+id/btn_notification_bar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_notification_about" />
-
-    <TextView
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/spacing_16"
-        android:gravity="center_horizontal"
-        android:text="@string/bar_about_nav_bar" />
-
-    <Button
-        android:id="@+id/btn_nav_bar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_about" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_nav.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_nav.xml
deleted file mode 100644
index 0fff66ca6e..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_nav.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_nav"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_nav_show"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_show" />
-
-    <Button
-        android:id="@+id/btn_nav_hide"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_hide" />
-
-    <Button
-        android:id="@+id/btn_nav_set_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_nav_color" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_notification.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_notification.xml
deleted file mode 100644
index 29db9299da..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_notification.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_show_notification"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_notification_show" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status.xml
deleted file mode 100644
index ffe0cd467a..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_status"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_show_status"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_show" />
-
-    <Button
-        android:id="@+id/btn_hide_status"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_hide" />
-
-    <Button
-        android:id="@+id/btn_light_mode"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_light_mode" />
-
-    <Button
-        android:id="@+id/btn_dark_mode"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/bar_status_dark_mode" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_alpha.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status_alpha.xml
deleted file mode 100644
index 9198fa9bc8..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_alpha.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@drawable/bar_status_alpha_bg">
-
-    <LinearLayout
-        android:id="@+id/ll_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</ScrollView>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_color.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status_color.xml
deleted file mode 100644
index 16157979ce..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_color.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_random_color"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_random_color" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</ScrollView>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_drawer.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status_drawer.xml
deleted file mode 100644
index acd82ba420..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_drawer.xml
+++ /dev/null
@@ -1,66 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <CheckBox
-            android:id="@+id/cb_alpha"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_margin="4dp"
-            android:text="@string/bar_status_title_alpha" />
-
-        <CheckBox
-            android:id="@+id/cb_front"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_margin="4dp"
-            android:text="@string/bar_status_is_front" />
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_random_color"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_random_color" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</FrameLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_fragment.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status_fragment.xml
deleted file mode 100644
index 13beb04e6f..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_fragment.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:orientation="vertical">
-
-    <android.support.v4.view.ViewPager
-        android:id="@+id/vp_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1"
-        android:orientation="vertical"
-        android:overScrollMode="never" />
-
-    <android.support.design.widget.BottomNavigationView
-        android:id="@+id/navigation_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom"
-        android:background="?android:attr/windowBackground"
-        app:menu="@menu/navigation_status_bar" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_image_view.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status_image_view.xml
deleted file mode 100644
index 9f6a49eaa7..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_image_view.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <ImageView
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:scaleType="centerCrop"
-        android:src="@drawable/image_lena" />
-
-    <ScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="@color/white">
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:gravity="center_horizontal"
-            android:orientation="vertical"
-            android:paddingLeft="@dimen/spacing_16"
-            android:paddingRight="@dimen/spacing_16">
-
-            <TextView
-                android:id="@+id/tv_status_alpha"
-                style="@style/TextStyle"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center_horizontal" />
-
-            <SeekBar
-                android:id="@+id/sb_change_alpha"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:max="255"
-                android:padding="@dimen/spacing_8"
-                android:progress="112" />
-
-            <Button
-                android:id="@+id/btn_set_transparent"
-                style="@style/WideBtnStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/bar_status_set_transparent" />
-
-        </LinearLayout>
-    </ScrollView>
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_swipe_back.xml b/lib/resource/src/main/res-utilcode/layout/activity_bar_status_swipe_back.xml
deleted file mode 100644
index e6bf6197ff..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_bar_status_swipe_back.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/ll_container"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:background="@color/white"
-    android:gravity="center_horizontal"
-    android:orientation="vertical">
-
-    <CheckBox
-        android:id="@+id/cb_alpha"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_horizontal"
-        android:layout_margin="4dp"
-        android:text="@string/bar_status_title_alpha" />
-
-    <TextView
-        android:id="@+id/tv_status_alpha"
-        style="@style/TextStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_horizontal" />
-
-    <SeekBar
-        android:id="@+id/sb_change_alpha"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginRight="@dimen/spacing_16"
-        android:max="255"
-        android:padding="@dimen/spacing_8"
-        android:progress="112" />
-
-    <Button
-        android:id="@+id/btn_random_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginRight="@dimen/spacing_16"
-        android:text="@string/bar_status_random_color" />
-
-    <Button
-        android:id="@+id/btn_set_transparent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="@dimen/spacing_16"
-        android:layout_marginRight="@dimen/spacing_16"
-        android:text="@string/bar_status_set_transparent" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_clean.xml b/lib/resource/src/main/res-utilcode/layout/activity_clean.xml
deleted file mode 100644
index d612206149..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_clean.xml
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_clean_internal_cache"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_cache" />
-
-    <Button
-        android:id="@+id/btn_clean_internal_files"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_files" />
-
-    <Button
-        android:id="@+id/btn_clean_internal_databases"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_databases" />
-
-    <Button
-        android:id="@+id/btn_clean_internal_sp"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_internal_sp" />
-
-    <Button
-        android:id="@+id/btn_clean_external_cache"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/clean_external_cache" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_device.xml b/lib/resource/src/main/res-utilcode/layout/activity_device.xml
deleted file mode 100644
index 0cd4056dcf..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_device.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_device"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_shutdown"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_shutdown" />
-
-    <Button
-        android:id="@+id/btn_reboot"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_reboot" />
-
-    <Button
-        android:id="@+id/btn_reboot_to_recovery"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_reboot_to_recovery" />
-
-    <Button
-        android:id="@+id/btn_reboot_to_bootloader"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/device_reboot_to_bootloader" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_flashlight.xml b/lib/resource/src/main/res-utilcode/layout/activity_flashlight.xml
deleted file mode 100644
index d2508c7e3a..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_flashlight.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_flashlight"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_set_flashlight_on"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/flashlight_on" />
-
-    <Button
-        android:id="@+id/btn_set_flashlight_off"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/flashlight_off" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_fragment.xml b/lib/resource/src/main/res-utilcode/layout/activity_fragment.xml
deleted file mode 100644
index 4394d49af7..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_fragment.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/white"
-    android:orientation="vertical">
-
-    <FrameLayout
-        android:id="@+id/fragment_container"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1" />
-
-    <android.support.design.widget.BottomNavigationView
-        android:id="@+id/navigation_fragment"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom"
-        android:background="?android:attr/windowBackground"
-        app:menu="@menu/navigation_fragment" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_image.xml b/lib/resource/src/main/res-utilcode/layout/activity_image.xml
deleted file mode 100644
index cdf27b357d..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_image.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:background="@color/white"
-    android:descendantFocusability="blocksDescendants"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_save"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/image_save" />
-
-    <android.support.v7.widget.RecyclerView
-        android:id="@+id/rv_images"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_keyboard.xml b/lib/resource/src/main/res-utilcode/layout/activity_keyboard.xml
deleted file mode 100644
index 13fd53eedc..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_keyboard.xml
+++ /dev/null
@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@color/rainbow_green">
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="2000dp"
-        android:orientation="vertical"
-        android:padding="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_about_keyboard"
-            style="@style/TextStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <Button
-            android:id="@+id/btn_hide_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tv_about_keyboard"
-            android:text="@string/keyboard_hide_soft_input" />
-
-        <Button
-            android:id="@+id/btn_show_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/btn_hide_soft_input"
-            android:text="@string/keyboard_show_soft_input" />
-
-        <Button
-            android:id="@+id/btn_toggle_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/btn_show_soft_input"
-            android:text="@string/keyboard_toggle_soft_input" />
-
-        <Button
-            android:id="@+id/btn_keyboard_in_fragment"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/btn_toggle_soft_input"
-            android:text="@string/keyboard_show_dialog" />
-
-        <EditText
-            android:id="@+id/et_input"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_alignParentBottom="true"
-            android:inputType="text" />
-
-    </RelativeLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_log.xml b/lib/resource/src/main/res-utilcode/layout/activity_log.xml
deleted file mode 100644
index fc56b5e7c0..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_log.xml
+++ /dev/null
@@ -1,184 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_log"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_toggle_log"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_log" />
-
-    <Button
-        android:id="@+id/btn_toggle_console"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_console" />
-
-    <Button
-        android:id="@+id/btn_toggle_tag"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_tag" />
-
-    <Button
-        android:id="@+id/btn_toggle_head"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_head" />
-
-    <Button
-        android:id="@+id/btn_toggle_file"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_file" />
-
-    <Button
-        android:id="@+id/btn_toggle_dir"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_dir" />
-
-    <Button
-        android:id="@+id/btn_toggle_border"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_border" />
-
-    <Button
-        android:id="@+id/btn_toggle_single"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_single" />
-
-    <Button
-        android:id="@+id/btn_toggle_conole_filter"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_console_filter" />
-
-    <Button
-        android:id="@+id/btn_toggle_file_filter"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_toggle_file_filter" />
-
-    <Button
-        android:id="@+id/btn_log_no_tag"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_with_no_tag" />
-
-    <Button
-        android:id="@+id/btn_log_with_tag"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_with_tag" />
-
-    <Button
-        android:id="@+id/btn_log_in_new_thread"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_in_new_thread" />
-
-    <Button
-        android:id="@+id/btn_log_null"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_null" />
-
-    <Button
-        android:id="@+id/btn_log_many_params"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_many_params" />
-
-    <Button
-        android:id="@+id/btn_log_long"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_long_string" />
-
-    <Button
-        android:id="@+id/btn_log_file"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_to_file" />
-
-    <Button
-        android:id="@+id/btn_log_json"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_json" />
-
-    <Button
-        android:id="@+id/btn_log_xml"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_xml" />
-
-    <Button
-        android:id="@+id/btn_log_array"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_array" />
-
-    <Button
-        android:id="@+id/btn_log_throwable"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_throwable" />
-
-    <Button
-        android:id="@+id/btn_log_bundle"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_bundle" />
-
-    <Button
-        android:id="@+id/btn_log_intent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_intent" />
-
-    <Button
-        android:id="@+id/btn_log_array_list"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/log_array_list" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_network.xml b/lib/resource/src/main/res-utilcode/layout/activity_network.xml
deleted file mode 100644
index 463205cc2f..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_network.xml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_network"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <TextView
-        android:id="@+id/tv_about_network_async"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_open_wireless_settings"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/network_open_wireless_settings" />
-
-    <Button
-        android:id="@+id/btn_set_data_enabled"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/network_set_data_enabled" />
-
-    <Button
-        android:id="@+id/btn_set_wifi_enabled"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/network_set_wifi_enabled" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_path.xml b/lib/resource/src/main/res-utilcode/layout/activity_path.xml
deleted file mode 100644
index a691536786..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_path.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_path"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_permission.xml b/lib/resource/src/main/res-utilcode/layout/activity_permission.xml
deleted file mode 100644
index 11090040e8..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_permission.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_permission"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_open_app_settings"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_open_app_settings" />
-
-    <Button
-        android:id="@+id/btn_request_calendar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_request_calendar" />
-
-    <Button
-        android:id="@+id/btn_request_record_audio"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_request_record_audio" />
-
-    <Button
-        android:id="@+id/btn_request_calendar_and_record_audio"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/permission_request_calendar" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_phone.xml b/lib/resource/src/main/res-utilcode/layout/activity_phone.xml
deleted file mode 100644
index abb8234c06..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_phone.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_phone"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_dial"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_dial" />
-
-    <Button
-        android:id="@+id/btn_call"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_call" />
-
-    <Button
-        android:id="@+id/btn_send_sms"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_send_sms" />
-
-    <Button
-        android:id="@+id/btn_send_sms_silent"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/phone_send_sms_silent" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_process.xml b/lib/resource/src/main/res-utilcode/layout/activity_process.xml
deleted file mode 100644
index 3e8eee335d..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_process.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_process"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_kill_all_background_processes"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/process_kill_all_background" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_reflect.xml b/lib/resource/src/main/res-utilcode/layout/activity_reflect.xml
deleted file mode 100644
index f4313589eb..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_reflect.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_reflect"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_resource.xml b/lib/resource/src/main/res-utilcode/layout/activity_resource.xml
deleted file mode 100644
index 969a73843b..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_resource.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_resource"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_resource_test_assets"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/resource_test_assets" />
-
-    <Button
-        android:id="@+id/btn_resource_test_raw"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/resource_test_raw" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_screen.xml b/lib/resource/src/main/res-utilcode/layout/activity_screen.xml
deleted file mode 100644
index 1c6f0ca042..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_screen.xml
+++ /dev/null
@@ -1,81 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@android:color/darker_gray">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical">
-
-        <ImageView
-            android:id="@+id/iv_screenshot"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-        <TextView
-            android:id="@+id/tv_about_screen"
-            style="@style/TextStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <Button
-            android:id="@+id/btn_set_fullscreen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_fullscreen" />
-
-        <Button
-            android:id="@+id/btn_set_non_fullscreen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_non_fullscreen" />
-
-        <Button
-            android:id="@+id/btn_toggle_fullscreen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_toggle_fullscreen" />
-
-        <Button
-            android:id="@+id/btn_set_landscape"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_landscape" />
-
-        <Button
-            android:id="@+id/btn_set_portrait"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_portrait" />
-
-        <Button
-            android:id="@+id/btn_screenshot"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_screenshot" />
-
-        <Button
-            android:id="@+id/btn_set_sleep_duration"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_set_sleep_duration" />
-
-        <Button
-            android:id="@+id/btn_test_adapt_screen"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/screen_test_adapt_screen" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_sdcard.xml b/lib/resource/src/main/res-utilcode/layout/activity_sdcard.xml
deleted file mode 100644
index 106f4a3e4e..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_sdcard.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_sdcard"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_snackbar.xml b/lib/resource/src/main/res-utilcode/layout/activity_snackbar.xml
deleted file mode 100644
index e2c0e24420..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_snackbar.xml
+++ /dev/null
@@ -1,98 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingBottom="@dimen/spacing_128"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16"
-    android:paddingTop="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_short_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_short" />
-
-    <Button
-        android:id="@+id/btn_short_snackbar_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_short_with_action" />
-
-    <Button
-        android:id="@+id/btn_long_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_long" />
-
-    <Button
-        android:id="@+id/btn_long_snackbar_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_long_with_action" />
-
-    <Button
-        android:id="@+id/btn_indefinite_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_indefinite" />
-
-    <Button
-        android:id="@+id/btn_indefinite_snackbar_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_indefinite_with_action" />
-
-    <Button
-        android:id="@+id/btn_add_view"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_add_view" />
-
-    <Button
-        android:id="@+id/btn_add_view_with_action"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_add_view_with_action" />
-
-    <Button
-        android:id="@+id/btn_show_success"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_success" />
-
-    <Button
-        android:id="@+id/btn_show_warning"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_warning" />
-
-    <Button
-        android:id="@+id/btn_show_error"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_show_error" />
-
-
-    <Button
-        android:id="@+id/btn_dismiss_snackbar"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/snackbar_dismiss" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_sp.xml b/lib/resource/src/main/res-utilcode/layout/activity_sp.xml
deleted file mode 100644
index 2f29c5d838..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_sp.xml
+++ /dev/null
@@ -1,61 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingBottom="@dimen/spacing_128"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16"
-    android:paddingTop="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_sp"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_sp_put_string"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_string" />
-
-    <Button
-        android:id="@+id/btn_sp_put_int"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_int" />
-
-    <Button
-        android:id="@+id/btn_sp_put_long"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_long" />
-
-    <Button
-        android:id="@+id/btn_sp_put_float"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_float" />
-
-    <Button
-        android:id="@+id/btn_sp_put_boolean"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_put_boolean" />
-
-    <Button
-        android:id="@+id/btn_sp_clear"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/sp_clear" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_span.xml b/lib/resource/src/main/res-utilcode/layout/activity_span.xml
deleted file mode 100644
index 8b9755af76..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_span.xml
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:background="@color/light_black"
-        android:id="@+id/tv_about_anim_span"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="start"
-        android:layerType="software" />
-
-    <TextView
-        android:id="@+id/tv_about_span"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:clickable="true"
-        android:focusable="true"
-        android:gravity="start|center_vertical" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_toast.xml b/lib/resource/src/main/res-utilcode/layout/activity_toast.xml
deleted file mode 100644
index e1c413744a..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_toast.xml
+++ /dev/null
@@ -1,72 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <Button
-        android:id="@+id/btn_show_short_toast"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_short" />
-
-    <Button
-        android:id="@+id/btn_show_long_toast"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_long" />
-
-    <Button
-        android:id="@+id/btn_show_green_font"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_green_font" />
-
-    <Button
-        android:id="@+id/btn_show_bg_color"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_bg_color" />
-
-    <Button
-        android:id="@+id/btn_show_bg_resource"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_bg_resource" />
-
-    <Button
-        android:id="@+id/btn_show_span"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_span" />
-
-    <Button
-        android:id="@+id/btn_show_custom_view"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_custom_view" />
-
-    <Button
-        android:id="@+id/btn_show_middle"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_show_middle" />
-
-    <Button
-        android:id="@+id/btn_cancel_toast"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/toast_cancel" />
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/activity_util_core.xml b/lib/resource/src/main/res-utilcode/layout/activity_util_core.xml
deleted file mode 100644
index 0889b514a8..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/activity_util_core.xml
+++ /dev/null
@@ -1,178 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:paddingLeft="@dimen/spacing_16"
-    android:paddingRight="@dimen/spacing_16">
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="activityClick"
-        android:text="@string/demo_activity" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="adaptScreenClick"
-        android:text="@string/demo_adapt_screen" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="appClick"
-        android:text="@string/demo_app" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="barClick"
-        android:text="@string/demo_bar" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="cleanClick"
-        android:text="@string/demo_clean" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="crashClick"
-        android:text="@string/demo_crash" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="deviceClick"
-        android:text="@string/demo_device" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="fragmentClick"
-        android:text="@string/demo_fragment" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="imageClick"
-        android:text="@string/demo_image" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="keyboardClick"
-        android:text="@string/demo_keyboard" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="logClick"
-        android:text="@string/demo_log" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="metaDataClick"
-        android:text="@string/demo_meta_data" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="networkClick"
-        android:text="@string/demo_network" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="pathClick"
-        android:text="@string/demo_path" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="permissionClick"
-        android:text="@string/demo_permission" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="phoneClick"
-        android:text="@string/demo_phone" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="processClick"
-        android:text="@string/demo_process" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="reflectClick"
-        android:text="@string/demo_reflect" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="resourceClick"
-        android:text="@string/demo_resource" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="sdcardClick"
-        android:text="@string/demo_sdcard" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="snackbarClick"
-        android:text="@string/demo_snackbar" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="spClick"
-        android:text="@string/demo_sp" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="spannableClick"
-        android:text="@string/demo_span" />
-
-    <Button
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="toastClick"
-        android:text="@string/demo_toast" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/dialog_keyboard.xml b/lib/resource/src/main/res-utilcode/layout/dialog_keyboard.xml
deleted file mode 100644
index 684a1dcc01..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/dialog_keyboard.xml
+++ /dev/null
@@ -1,133 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:padding="@dimen/spacing_16">
-
-        <Button
-            android:id="@+id/btn_hide_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_hide_soft_input" />
-
-        <Button
-            android:id="@+id/btn_show_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_show_soft_input" />
-
-        <Button
-            android:id="@+id/btn_toggle_soft_input"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_toggle_soft_input" />
-
-        <Button
-            android:id="@+id/btn_close_dialog"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/keyboard_close_dialog" />
-
-        <EditText
-            android:id="@+id/et_input"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input1"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input2"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input3"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_gravity="bottom"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input4"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input5"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-
-        <EditText
-            android:id="@+id/et_input6"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input7"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input8"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input9"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input10"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input11"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input12"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-        <EditText
-            android:id="@+id/et_input13"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:inputType="text" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_alpha.xml b/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_alpha.xml
deleted file mode 100644
index 70107ef6f0..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_alpha.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@drawable/bar_status_alpha_bg"
-    android:orientation="vertical">
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:id="@+id/ll_container"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_color.xml b/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_color.xml
deleted file mode 100644
index 4e9080d5be..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_color.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_random_color"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_random_color" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_custom.xml b/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_custom.xml
deleted file mode 100644
index f5d0dbd147..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_custom.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <View
-        android:background="@drawable/bar_status_custom"
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-</LinearLayout>
diff --git a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_image_view.xml b/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_image_view.xml
deleted file mode 100644
index 44c2694576..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/fragment_bar_status_image_view.xml
+++ /dev/null
@@ -1,52 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <ImageView
-        android:id="@+id/iv_header"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:scaleType="centerCrop"
-        android:src="@drawable/image_lena" />
-
-    <View
-        android:id="@+id/fake_status_bar"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_below="@+id/iv_header"
-        android:gravity="center_horizontal"
-        android:orientation="vertical"
-        android:paddingLeft="@dimen/spacing_16"
-        android:paddingRight="@dimen/spacing_16">
-
-        <TextView
-            android:id="@+id/tv_status_alpha"
-            style="@style/TextStyle"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal" />
-
-        <SeekBar
-            android:id="@+id/sb_change_alpha"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:max="255"
-            android:padding="@dimen/spacing_8"
-            android:progress="112" />
-
-        <Button
-            android:id="@+id/btn_set_transparent"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/bar_status_set_transparent" />
-
-    </LinearLayout>
-
-</RelativeLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/fragment_child.xml b/lib/resource/src/main/res-utilcode/layout/fragment_child.xml
deleted file mode 100644
index f63d429a20..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/fragment_child.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:padding="@dimen/spacing_16">
-
-    <TextView
-        android:id="@+id/tv_about_fragment"
-        style="@style/TextStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <Button
-        android:id="@+id/btn_show_about_fragment"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/fragment_show_stack" />
-
-    <Button
-        android:id="@+id/btn_pop"
-        style="@style/WideBtnStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/fragment_pop" />
-
-    <ImageView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:src="@drawable/image_lena"
-        android:transitionName="@string/fragment_transition" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/fragment_root.xml b/lib/resource/src/main/res-utilcode/layout/fragment_root.xml
deleted file mode 100644
index 31e5e420c2..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/fragment_root.xml
+++ /dev/null
@@ -1,103 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:padding="@dimen/spacing_16">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center_horizontal"
-        android:orientation="vertical">
-
-        <TextView
-            android:id="@+id/tv_about_fragment"
-            style="@style/TextStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <FrameLayout
-            android:id="@+id/child_fragment_container"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-
-        <Button
-            android:id="@+id/btn_show_about_fragment"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_show_stack" />
-
-        <Button
-            android:id="@+id/btn_add"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add" />
-
-        <Button
-            android:id="@+id/btn_add_hide"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_hide" />
-
-        <Button
-            android:id="@+id/btn_add_hide_stack"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_hide_stack" />
-
-        <Button
-            android:id="@+id/btn_add_show"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_demo1_show" />
-
-        <Button
-            android:id="@+id/btn_add_child"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_add_child" />
-
-        <Button
-            android:id="@+id/btn_pop_to_root"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_pop_to_root" />
-
-        <Button
-            android:id="@+id/btn_pop_add"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_pop_add" />
-
-        <Button
-            android:id="@+id/btn_hide_show"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_hide_demo0_show_demo1" />
-
-        <Button
-            android:id="@+id/btn_replace"
-            style="@style/WideBtnStyle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/fragment_replace" />
-
-        <ImageView
-            android:id="@+id/iv_shared_element"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:src="@drawable/image_lena"
-            android:transitionName="@string/fragment_transition" />
-
-    </LinearLayout>
-</ScrollView>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/item_image.xml b/lib/resource/src/main/res-utilcode/layout/item_image.xml
deleted file mode 100644
index 100d32cf0f..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/item_image.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="vertical">
-
-    <TextView
-        android:id="@+id/tv_image_name"
-        style="@style/TextStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
-
-    <ImageView
-        android:id="@+id/iv_image"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/item_image1.xml b/lib/resource/src/main/res-utilcode/layout/item_image1.xml
deleted file mode 100644
index a430afdb36..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/item_image1.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <TextView
-        android:id="@+id/tv_image_name"
-        style="@style/TextStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
-
-    <ImageView
-        android:id="@+id/iv_image"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        app:layout_constraintTop_toBottomOf="@id/tv_image_name" />
-
-</android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/snackbar_custom.xml b/lib/resource/src/main/res-utilcode/layout/snackbar_custom.xml
deleted file mode 100644
index 86f3216820..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/snackbar_custom.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<TextView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/tv_snackbar_custom"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_gravity="center"
-    android:background="@drawable/snackbar_custom_bg"
-    android:drawableLeft="@mipmap/ic_launcher"
-    android:drawablePadding="@dimen/spacing_16"
-    android:gravity="center_vertical"
-    android:padding="@dimen/spacing_16"
-    android:text="@string/snackbar_custom_view"
-    android:textColor="@color/white"
-    android:textSize="@dimen/font_24" />
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/layout/toast_custom.xml b/lib/resource/src/main/res-utilcode/layout/toast_custom.xml
deleted file mode 100644
index e384592ff2..0000000000
--- a/lib/resource/src/main/res-utilcode/layout/toast_custom.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<TextView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/tv_toast_message"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:layout_gravity="center"
-    android:background="@drawable/toast_shape_round_rect"
-    android:drawableLeft="@mipmap/ic_launcher"
-    android:drawablePadding="@dimen/spacing_16"
-    android:gravity="center"
-    android:padding="@dimen/spacing_16"
-    android:textColor="@color/white"
-    android:textSize="@dimen/font_24" />
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/menu/navigation_fragment.xml b/lib/resource/src/main/res-utilcode/menu/navigation_fragment.xml
deleted file mode 100644
index c16b5f96d7..0000000000
--- a/lib/resource/src/main/res-utilcode/menu/navigation_fragment.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item
-        android:id="@+id/navigation_fragment_zero"
-        android:icon="@drawable/fragment_nav"
-        android:title="@string/fragment_zero" />
-
-    <item
-        android:id="@+id/navigation_fragment_one"
-        android:icon="@drawable/fragment_nav"
-        android:title="@string/fragment_one" />
-
-    <item
-        android:id="@+id/navigation_fragment_two"
-        android:icon="@drawable/fragment_nav"
-        android:title="@string/fragment_two" />
-
-</menu>
diff --git a/lib/resource/src/main/res-utilcode/menu/navigation_status_bar.xml b/lib/resource/src/main/res-utilcode/menu/navigation_status_bar.xml
deleted file mode 100644
index 17526f33e8..0000000000
--- a/lib/resource/src/main/res-utilcode/menu/navigation_status_bar.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item
-        android:id="@+id/navigation_color"
-        android:icon="@drawable/bar_status_nav_color"
-        android:title="@string/bar_status_title_color" />
-
-    <item
-        android:id="@+id/navigation_alpha"
-        android:icon="@drawable/bar_status_nav_alpha"
-        android:title="@string/bar_status_title_alpha" />
-
-    <item
-        android:id="@+id/navigation_image_view"
-        android:icon="@drawable/bar_status_nav_image"
-        android:title="@string/bar_status_title_image_view" />
-
-    <item
-        android:id="@+id/navigation_custom"
-        android:icon="@drawable/bar_status_nav_custom"
-        android:title="@string/bar_status_title_custom" />
-
-</menu>
diff --git a/lib/resource/src/main/res-utilcode/raw/test.txt b/lib/resource/src/main/res-utilcode/raw/test.txt
deleted file mode 100644
index f7bc1649eb..0000000000
--- a/lib/resource/src/main/res-utilcode/raw/test.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-1st line
-2nd line
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/transition/explode_1000.xml b/lib/resource/src/main/res-utilcode/transition/explode_1000.xml
deleted file mode 100644
index a87f4cb83c..0000000000
--- a/lib/resource/src/main/res-utilcode/transition/explode_1000.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<explode xmlns:android="http://schemas.android.com/apk/res/android"
-    android:duration="1000" />
\ No newline at end of file
diff --git a/lib/resource/src/main/res-utilcode/transition/fade_1000.xml b/lib/resource/src/main/res-utilcode/transition/fade_1000.xml
deleted file mode 100644
index 81b43c210e..0000000000
--- a/lib/resource/src/main/res-utilcode/transition/fade_1000.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<fade xmlns:android="http://schemas.android.com/apk/res/android"
-    android:duration="1000" />
diff --git a/lib/resource/src/main/res-utilcode/transition/slide_1000.xml b/lib/resource/src/main/res-utilcode/transition/slide_1000.xml
deleted file mode 100644
index ece4260af9..0000000000
--- a/lib/resource/src/main/res-utilcode/transition/slide_1000.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<slide xmlns:android="http://schemas.android.com/apk/res/android"
-    android:duration="1000" />
diff --git a/lib/resource/src/main/res-utilcode/values/strings.xml b/lib/resource/src/main/res-utilcode/values/strings.xml
deleted file mode 100644
index 31820cab5b..0000000000
--- a/lib/resource/src/main/res-utilcode/values/strings.xml
+++ /dev/null
@@ -1,289 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="demo_activity">ActivityUtils Demo</string>
-    <string name="demo_adapt_screen">AdaptScreenUtils Demo</string>
-    <string name="demo_app">AppUtils Demo</string>
-    <string name="demo_bar">BarUtils Demo</string>
-    <string name="demo_clean">CleanUtils Demo</string>
-    <string name="demo_crash">CrashUtils Demo</string>
-    <string name="demo_device">DeviceUtils Demo</string>
-    <string name="demo_fragment">FragmentUtils Demo</string>
-    <string name="demo_image">ImageUtils Demo</string>
-    <string name="demo_keyboard">KeyboardUtils Demo</string>
-    <string name="demo_log">LogUtils Demo</string>
-    <string name="demo_meta_data">MetaData Demo</string>
-    <string name="demo_network">NetworkUtils Demo</string>
-    <string name="demo_path">Path Demo</string>
-    <string name="demo_permission">PermissionUtils Demo</string>
-    <string name="demo_phone">PhoneUtils Demo</string>
-    <string name="demo_process">ProcessUtils Demo</string>
-    <string name="demo_reflect">ReflectUtils Demo</string>
-    <string name="demo_resource">ResourceUtils Demo</string>
-    <string name="demo_screen">ScreenUtils Demo</string>
-    <string name="demo_sdcard">SDCardUtils Demo</string>
-    <string name="demo_snackbar">Snackbar Demo</string>
-    <string name="demo_sp">SP Demo</string>
-    <string name="demo_span">SpanUtils Demo</string>
-    <string name="demo_toast">ToastUtils Demo</string>
-
-    <!--Activity 相关-->
-    <string name="activity_shared_element">Shared Element</string>
-    <string name="activity_clz">Clz</string>
-    <string name="activity_clz_opt">Clz Opt</string>
-    <string name="activity_clz_anim">Clz Anim</string>
-    <string name="activity_act_clz">Act Clz</string>
-    <string name="activity_act_clz_opt">Act Clz Opt</string>
-    <string name="activity_act_clz_shared_element">Act Clz Shared Element</string>
-    <string name="activity_act_clz_anim">Act Clz Anim</string>
-    <string name="activity_pkg_cls">Pkg Cls</string>
-    <string name="activity_pkg_cls_opt">Pkg Cls Opt</string>
-    <string name="activity_pkg_cls_anim">Pkg Cls Anim</string>
-    <string name="activity_act_pkg_cls">Act Pkg Cls</string>
-    <string name="activity_act_pkg_cls_opt">Act Pkg Cls Opt</string>
-    <string name="activity_act_pkg_cls_shared_element">Act Pkg Cls Shared Element</string>
-    <string name="activity_act_pkg_cls_anim">Act Pkg Cls Anim</string>
-    <string name="activity_intent">Intent</string>
-    <string name="activity_intent_opt">Intent Opt</string>
-    <string name="activity_intent_shared_element">Intent Shared Element</string>
-    <string name="activity_intent_anim">Intent Anim</string>
-    <string name="activity_intents">Intents</string>
-    <string name="activity_intents_opt">Intents Opt</string>
-    <string name="activity_intents_anim">Intents Anim</string>
-    <string name="activity_act_intents">Act Intents</string>
-    <string name="activity_act_intents_opt">Act Intents Opt</string>
-    <string name="activity_act_intents_anim">Act Intents Anim</string>
-    <string name="activity_start_activities">Start Activities</string>
-    <string name="activity_start_home_activity">Start Home Activity</string>
-    <string name="activity_finish_activity">Finish MainActivity</string>
-    <string name="activity_finish_to_activity">Finish To MainActivity</string>
-    <string name="activity_finish_all_activities">Finish All Activities</string>
-
-    <!--App 相关-->
-    <string name="app_install">Install Test App</string>
-    <string name="app_install_tips">Test app have installed</string>
-    <string name="app_install_silent">Install Test App Silently</string>
-    <string name="install_successfully">Install successfully</string>
-    <string name="install_unsuccessfully">Install unsuccessfully</string>
-    <string name="app_uninstall">Uninstall Test App</string>
-    <string name="app_uninstall_tips">Please install test app first</string>
-    <string name="app_uninstall_silent">Uninstall App Silently</string>
-    <string name="uninstall_successfully">Uninstall successfully</string>
-    <string name="uninstall_unsuccessfully">Uninstall unsuccessfully</string>
-    <string name="app_launch">Launch App</string>
-    <string name="app_relaunch">Relaunch App</string>
-    <string name="app_launch_details_settings">Launch App Details Settings</string>
-    <string name="app_exit">Exit App</string>
-
-    <!--Bar 相关-->
-    <string name="bar_about_status_bar">About Status Bar</string>
-    <string name="bar_about_nav_bar">About Nav Bar</string>
-    <string name="bar_about_notification_bar">About Notification Bar</string>
-
-    <string name="bar_status_about">About Status</string>
-    <string name="bar_status_show">Show Status</string>
-    <string name="bar_status_hide">Hide Status</string>
-    <string name="bar_status_light_mode">Light Mode Status</string>
-    <string name="bar_status_dark_mode">Dark Mode Status</string>
-    <string name="bar_status_set_color">Set Color</string>
-    <string name="bar_status_set_alpha">Set Alpha</string>
-    <string name="bar_status_set_image_view">Set Image View</string>
-    <string name="bar_status_set_fragment">Set Fragment</string>
-    <string name="bar_status_set_swipe_back">Set Swipe Back</string>
-    <string name="bar_status_set_drawer">Set Drawer</string>
-    <string name="bar_status_random_color">Random Color</string>
-    <string name="bar_status_set_transparent">Set Transparent</string>
-    <string name="bar_status_title_color">Color</string>
-    <string name="bar_status_title_alpha">Alpha</string>
-    <string name="bar_status_is_front">Front</string>
-    <string name="bar_status_title_image_view">Image</string>
-    <string name="bar_status_title_custom">Custom</string>
-
-    <string name="bar_notification_about">About Notification</string>
-    <string name="bar_notification_show">Show Notification And Hide After 2s</string>
-
-    <string name="bar_nav_about">About Nav</string>
-    <string name="bar_nav_show">Show Nav</string>
-    <string name="bar_nav_hide">Hide Nav</string>
-    <string name="bar_nav_immersive">Immersive Nav</string>
-    <string name="bar_nav_color">Set Nav Color Random</string>
-
-    <!--Clean 相关-->
-    <string name="clean_internal_cache">Clean Internal Cache</string>
-    <string name="clean_internal_files">Clean Internal Files</string>
-    <string name="clean_internal_databases">Clean Internal Databases</string>
-    <string name="clean_internal_sp">Clean Internal SP</string>
-    <string name="clean_external_cache">Clean External Cache</string>
-
-    <!--Device 相关-->
-    <string name="device_shutdown">Shutdown</string>
-    <string name="device_reboot">Reboot</string>
-    <string name="device_reboot_to_recovery">Reboot To Recovery</string>
-    <string name="device_reboot_to_bootloader">Reboot To Bootloader</string>
-
-    <!--Fragment 相关-->
-    <string name="fragment_zero">Fragment0</string>
-    <string name="fragment_one">Fragment1</string>
-    <string name="fragment_two">Fragment2</string>
-    <string name="fragment_show_stack">Show Stack</string>
-    <string name="fragment_add">Add</string>
-    <string name="fragment_add_hide">Add Hide</string>
-    <string name="fragment_add_hide_stack">Add Hide Stack</string>
-    <string name="fragment_add_demo1_show">Add Demo1 Show</string>
-    <string name="fragment_add_child">Add Child</string>
-    <string name="fragment_pop">Pop</string>
-    <string name="fragment_pop_to_root">Pop To Root</string>
-    <string name="fragment_pop_add">Pop Add</string>
-    <string name="fragment_hide_demo0_show_demo1">Hide Demo0 Show Demo1</string>
-    <string name="fragment_hide_demo1_show_demo0">Hide Demo1 Show Demo0</string>
-    <string name="fragment_replace">Replace</string>
-    <string name="fragment_transition">Transition</string>
-
-    <!--Image 相关-->
-    <string name="image_src">Src</string>
-    <string name="image_add_color">Add Color</string>
-    <string name="image_scale">Scale</string>
-    <string name="image_clip">Clip</string>
-    <string name="image_skew">Skew</string>
-    <string name="image_rotate">Rotate</string>
-    <string name="image_to_round">To Round</string>
-    <string name="image_to_round_border">To Round Border</string>
-    <string name="image_to_round_corner">To Round Corner</string>
-    <string name="image_to_round_corner_border">To Round Corner Border</string>
-    <string name="image_add_corner_border">Add Corner Border</string>
-    <string name="image_add_circle_border">Add Circle Border</string>
-    <string name="image_add_reflection">Add Reflection</string>
-    <string name="image_add_text_watermark">Add Text Watermark</string>
-    <string name="image_add_image_watermark">Add Image Watermark</string>
-    <string name="image_to_gray">Gray</string>
-    <string name="image_fast_blur">Fast Blur</string>
-    <string name="image_render_script_blur">Render Script Blur</string>
-    <string name="image_stack_blur">Stack Blur</string>
-    <string name="image_save">Save</string>
-    <string name="image_compress_by_scale">Compress By Scale</string>
-    <string name="image_compress_by_quality_half">Compress By Quality Half</string>
-    <string name="image_compress_by_quality_max_size">Compress By Quality Max Size</string>
-    <string name="image_compress_by_sample_size">Compress By Sample Size</string>
-
-
-    <!--Network 相关-->
-    <string name="network_open_wireless_settings">Open Wireless Settings</string>
-    <string name="network_set_data_enabled">Set Data Enabled</string>
-    <string name="network_set_wifi_enabled">Set Wifi Enabled</string>
-
-    <!--Keyboard 相关-->
-    <string name="keyboard_hide_soft_input">Hide Soft Input</string>
-    <string name="keyboard_show_soft_input">Show Soft Input</string>
-    <string name="keyboard_toggle_soft_input">Toggle Soft Input</string>
-    <string name="keyboard_show_dialog">Show Dialog</string>
-    <string name="keyboard_close_dialog">Close Dialog</string>
-
-    <!--log 相关-->
-    <string name="log_toggle_log">Toggle Log</string>
-    <string name="log_toggle_console">Toggle Console</string>
-    <string name="log_toggle_tag">Toggle Tag</string>
-    <string name="log_toggle_head">Toggle Head</string>
-    <string name="log_toggle_border">Toggle Border</string>
-    <string name="log_toggle_single">Toggle Single</string>
-    <string name="log_toggle_console_filter">Toggle Console Filter</string>
-    <string name="log_toggle_file_filter">Toggle File Filter</string>
-    <string name="log_toggle_file">Toggle File</string>
-    <string name="log_toggle_dir">Toggle Dir</string>
-    <string name="log_with_no_tag">Log With No Tag</string>
-    <string name="log_with_tag">Log With Tag</string>
-    <string name="log_in_new_thread">Log In New Thread</string>
-    <string name="log_null">Log Null</string>
-    <string name="log_many_params">Log Many Params</string>
-    <string name="log_long_string">Log Long String</string>
-    <string name="log_to_file">Log To File</string>
-    <string name="log_json">Log Json</string>
-    <string name="log_xml">Log Xml</string>
-    <string name="log_array">Log Array</string>
-    <string name="log_throwable">Log Throwable</string>
-    <string name="log_bundle">Log Bundle</string>
-    <string name="log_intent">Log Intent</string>
-    <string name="log_array_list">Log Array List</string>
-
-    <!--Permission 相关-->
-    <string name="permission_open_app_settings">Open App Settings</string>
-    <string name="permission_request_calendar">Request Calendar</string>
-    <string name="permission_request_record_audio">Request Record Audio</string>
-    <string name="permission_request_calendar_and_record_audio">Request Calendar And Record Audio</string>
-
-
-    <!--Phone 相关-->
-    <string name="phone_dial">Dial</string>
-    <string name="phone_call">Call</string>
-    <string name="phone_send_sms">Send SMS</string>
-    <string name="phone_send_sms_silent">Send SMS Silent</string>
-
-    <!--Process 相关-->
-    <string name="process_kill_all_background">Kill All Background Processes</string>
-
-    <!--Resource 相关-->
-    <string name="resource_test_assets">Test Assets</string>
-    <string name="resource_test_raw">Test Raw</string>
-
-    <!--Screen 相关-->
-    <string name="screen_set_fullscreen">Set Fullscreen</string>
-    <string name="screen_set_non_fullscreen">Set NonFullscreen</string>
-    <string name="screen_toggle_fullscreen">Toggle Fullscreen</string>
-    <string name="screen_set_landscape">Set Landscape</string>
-    <string name="screen_set_portrait">Set Portrait</string>
-    <string name="screen_screenshot">Screenshot</string>
-    <string name="screen_set_sleep_duration">Set Sleep Duration</string>
-    <string name="screen_test_adapt_screen">Test Adapt Screen</string>
-    <string name="adapt_screen_system_toast">System Toast</string>
-    <string name="adapt_screen_util_toast">Util Toast</string>
-    <string name="adapt_screen_system_dialog">System Dialog</string>
-    <string name="adapt_screen_system_dialog_without_adapt">System Dialog Without Adapt</string>
-
-    <!--SnackBar 相关-->
-    <string name="snackbar_show_short">Show Short Snackbar</string>
-    <string name="snackbar_show_short_with_action">Show Short Snackbar With Action</string>
-    <string name="snackbar_show_long">Show Long Snackbar</string>
-    <string name="snackbar_show_long_with_action">Show Long Snackbar With Action</string>
-    <string name="snackbar_show_indefinite">Show Indefinite Snackbar</string>
-    <string name="snackbar_show_indefinite_with_action">Show Indefinite Snackbar With Action</string>
-    <string name="snackbar_add_view">Add View</string>
-    <string name="snackbar_add_view_with_action">Add View With Action</string>
-    <string name="snackbar_show_success">Show Success</string>
-    <string name="snackbar_show_warning">Show Warning</string>
-    <string name="snackbar_show_error">Show Error</string>
-    <string name="snackbar_dismiss">Dismiss Snackbar</string>
-    <string name="snackbar_short">Short Snackbar</string>
-    <string name="snackbar_long">Long Snackbar</string>
-    <string name="snackbar_indefinite">Indefinite Snackbar</string>
-    <string name="snackbar_click">Click</string>
-    <string name="snackbar_custom_view">Custom View</string>
-    <string name="snackbar_success">Success</string>
-    <string name="snackbar_warning">Warning</string>
-    <string name="snackbar_error">Error</string>
-
-    <!--SP 相关-->
-    <string name="sp_put_string">Put String</string>
-    <string name="sp_put_int">Put Int</string>
-    <string name="sp_put_long">Put Long</string>
-    <string name="sp_put_float">Put Float</string>
-    <string name="sp_put_boolean">Put Boolean</string>
-    <string name="sp_clear">Clear</string>
-
-    <!--Toast 相关-->
-    <string name="toast_show_short">Show Short</string>
-    <string name="toast_show_long">Show Long</string>
-    <string name="toast_show_green_font">Show Green Font</string>
-    <string name="toast_show_bg_color">Show Bg Color</string>
-    <string name="toast_show_bg_resource">Show Bg Resource</string>
-    <string name="toast_show_span">Show Span</string>
-    <string name="toast_show_custom_view">Show Custom View</string>
-    <string name="toast_custom_view">Custom View</string>
-    <string name="toast_show_middle">Show Middle</string>
-    <string name="toast_cancel">Cancel</string>
-
-    <string name="toast_short">Short</string>
-    <string name="toast_long">Long</string>
-    <string name="toast_green_font">Green Font</string>
-    <string name="toast_bg_color">Bg Color</string>
-    <string name="toast_custom_bg">Custom Bg</string>
-    <string name="toast_span">Spannable String</string>
-    <string name="toast_middle">Middle</string>
-</resources>
diff --git a/lib/subutil/.gitignore b/lib/subutil/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/lib/subutil/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/lib/subutil/README-CN.md b/lib/subutil/README-CN.md
new file mode 100644
index 0000000000..a712609087
--- /dev/null
+++ b/lib/subutil/README-CN.md
@@ -0,0 +1,97 @@
+## How to use
+
+从下面选择拷贝你需要用到的类到你项目中即可。
+
+
+## APIs
+
+
+* ### 应用商店相关 -> [AppStoreUtils.java][appStore.java] -> [Demo][appStore.demo]
+```
+getAppStoreIntent: 获取跳转应用商店意图
+```
+
+* ### 电池相关 -> [BatteryUtils.java][battery.java] -> [Demo][battery.demo]
+```
+registerBatteryStatusChangedListener    : 注册电池状态改变监听器
+isRegisteredBatteryStatusChangedListener: 判断是否注册电池状态改变监听器
+unregisterBatteryStatusChangedListener  : 注销电池状态改变监听器
+```
+
+* ### 坐标转换相关 -> [CoordinateUtils.java][coordinate.java] -> [Test][coordinate.test]
+```
+bd09ToGcj02 : BD09 坐标转 GCJ02 坐标
+gcj02ToBd09 : GCJ02 坐标转 BD09 坐标
+gcj02ToWGS84: GCJ02 坐标转 WGS84 坐标
+wgs84ToGcj02: WGS84 坐标转 GCJ02 坐标
+bd09ToWGS84 : BD09 坐标转 WGS84 坐标
+wgs84ToBd09 : WGS84 坐标转 BD09 坐标
+```
+
+* ### 国家相关 -> [CountryUtils.java][country.java] -> [Demo][country.demo]
+```
+getCountryCodeBySim     : 根据 Sim 卡获取国家码
+getCountryCodeByLanguage: 根据系统语言获取国家码
+getCountryBySim         : 根据 Sim 卡获取国家
+getCountryByLanguage    : 根据系统语言获取国家
+```
+
+* ### 危险相关 -> [DangerousUtils.java][dangerous.java] -> [Demo][dangerous.demo]
+```
+installAppSilent    : 静默安装 App
+uninstallAppSilent  : 静默卸载 App
+shutdown            : 关机
+reboot              : 重启
+reboot2Recovery     : 重启到 recovery
+reboot2Bootloader   : 重启到 bootloader
+setMobileDataEnabled: 打开或关闭移动数据
+sendSmsSilent       : 发送短信
+```
+
+* ### 定位相关 -> [LocationUtils.java][location.java] -> [Demo][location.demo]
+```
+isGpsEnabled     : 判断 Gps 是否可用
+isLocationEnabled: 判断定位是否可用
+openGpsSettings  : 打开 Gps 设置界面
+register         : 注册
+unregister       : 注销
+getAddress       : 根据经纬度获取地理位置
+getCountryName   : 根据经纬度获取所在国家
+getLocality      : 根据经纬度获取所在地
+getStreet        : 根据经纬度获取所在街道
+isBetterLocation : 是否更好的位置
+isSameProvider   : 是否相同的提供者
+```
+
+* ### 拼音相关 -> [PinyinUtils.java][pinyin.java] -> [Demo][pinyin.demo]
+```
+ccs2Pinyin           : 汉字转拼音
+ccs2Pinyin           : 汉字转拼音
+getPinyinFirstLetter : 获取第一个汉字首字母
+getPinyinFirstLetters: 获取所有汉字的首字母
+getSurnamePinyin     : 根据名字获取姓氏的拼音
+getSurnameFirstLetter: 根据名字获取姓氏的首字母
+```
+
+
+
+[appStore.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/AppStoreUtils.java
+[appStore.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/appStore/AppStoreActivity.kt
+
+[battery.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/BatteryUtils.java
+[battery.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/battery/BatteryActivity.kt
+
+[coordinate.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
+[coordinate.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
+
+[country.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/CountryUtils.java
+[country.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/country/CountryActivity.kt
+
+[dangerous.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/DangerousUtils.java
+[dangerous.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/dangerous/DangerousActivity.kt
+
+[location.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
+[location.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationActivity.kt
+
+[pinyin.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
+[pinyin.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/pinyin/PinyinActivity.kt
diff --git a/lib/subutil/README.md b/lib/subutil/README.md
new file mode 100644
index 0000000000..f25b631c1b
--- /dev/null
+++ b/lib/subutil/README.md
@@ -0,0 +1,97 @@
+## How to use
+
+You should copy the following classes which you want to use in your project.
+
+
+## APIs
+
+
+* ### About AppStore -> [AppStoreUtils.java][appStore.java] -> [Demo][appStore.demo]
+```
+getAppStoreIntent
+```
+
+* ### About Battery -> [BatteryUtils.java][battery.java] -> [Demo][battery.demo]
+```
+registerBatteryStatusChangedListener
+isRegisteredBatteryStatusChangedListener
+unregisterBatteryStatusChangedListener
+```
+
+* ### About Coordinate -> [CoordinateUtils.java][coordinate.java] -> [Test][coordinate.test]
+```
+bd09ToGcj02
+gcj02ToBd09
+gcj02ToWGS84
+wgs84ToGcj02
+bd09ToWGS84
+wgs84ToBd09
+```
+
+* ### About Country -> [CountryUtils.java][country.java] -> [Demo][country.demo]
+```
+getCountryCodeBySim
+getCountryCodeByLanguage
+getCountryBySim
+getCountryByLanguage
+```
+
+* ### About Dangerous -> [DangerousUtils.java][dangerous.java] -> [Demo][dangerous.demo]
+```
+installAppSilent
+uninstallAppSilent
+shutdown
+reboot
+reboot2Recovery
+reboot2Bootloader
+setMobileDataEnabled
+sendSmsSilent
+```
+
+* ### About Location -> [LocationUtils.java][location.java] -> [Demo][location.demo]
+```
+isGpsEnabled
+isLocationEnabled
+openGpsSettings
+register
+unregister
+getAddress
+getCountryName
+getLocality
+getStreet
+isBetterLocation
+isSameProvider
+```
+
+* ### About Pinyin -> [PinyinUtils.java][pinyin.java] -> [Demo][pinyin.demo]
+```
+ccs2Pinyin
+ccs2Pinyin
+getPinyinFirstLetter
+getPinyinFirstLetters
+getSurnamePinyin
+getSurnameFirstLetter
+```
+
+
+
+[appStore.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/AppStoreUtils.java
+[appStore.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/appStore/AppStoreActivity.kt
+
+[battery.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/BatteryUtils.java
+[battery.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/battery/BatteryActivity.kt
+
+[coordinate.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
+[coordinate.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
+
+[country.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/CountryUtils.java
+[country.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/country/CountryActivity.kt
+
+[dangerous.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/DangerousUtils.java
+[dangerous.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/dangerous/DangerousActivity.kt
+
+[location.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
+[location.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/location/LocationActivity.kt
+
+[pinyin.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
+[pinyin.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/subutil/pkg/src/main/java/com/blankj/subutil/pkg/feature/pinyin/PinyinActivity.kt
diff --git a/lib/subutil/build.gradle b/lib/subutil/build.gradle
new file mode 100644
index 0000000000..8a697c5a1e
--- /dev/null
+++ b/lib/subutil/build.gradle
@@ -0,0 +1,23 @@
+apply {
+    plugin "readme-sub"
+}
+
+readme {
+    readmeFile file('./README.md')
+    readmeCnFile file('./README-CN.md')
+}
+
+dependencies {
+    compileOnly Config.libs.androidx_appcompat.path
+    compileOnly Config.libs.androidx_material.path
+    compileOnly Config.modules.lib_utilcode.dep
+    api(Config.libs.glide.path) {
+        exclude group: "com.android.support"
+    }
+    api Config.libs.retrofit.path
+    api Config.libs.gson.path
+
+    testImplementation Config.modules.lib_utilcode.dep
+    testImplementation Config.libs.test_junit.path
+    testImplementation Config.libs.test_robolectric.path
+}
\ No newline at end of file
diff --git a/subutil/lib/proguard-rules.pro b/lib/subutil/proguard-rules.pro
similarity index 100%
rename from subutil/lib/proguard-rules.pro
rename to lib/subutil/proguard-rules.pro
diff --git a/lib/subutil/src/main/AndroidManifest.xml b/lib/subutil/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..728d4495b0
--- /dev/null
+++ b/lib/subutil/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest package="com.blankj.subutil" />
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/AppStoreUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/AppStoreUtils.java
new file mode 100644
index 0000000000..92aa89be0b
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/AppStoreUtils.java
@@ -0,0 +1,135 @@
+package com.blankj.subutil.util;
+
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.util.Log;
+
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.RomUtils;
+import com.blankj.utilcode.util.Utils;
+
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/05/20
+ *     desc  : utils about app store
+ * </pre>
+ */
+public final class AppStoreUtils {
+
+    private static final String TAG = "AppStoreUtils";
+
+    private static final String GOOGLE_PLAY_APP_STORE_PACKAGE_NAME = "com.android.vending";
+
+    /**
+     * 获取跳转到应用商店的 Intent
+     *
+     * @return 跳转到应用商店的 Intent
+     */
+    public static Intent getAppStoreIntent() {
+        return getAppStoreIntent(Utils.getApp().getPackageName(), false);
+    }
+
+    /**
+     * 获取跳转到应用商店的 Intent
+     *
+     * @param isIncludeGooglePlayStore 是否包括 Google Play 商店
+     * @return 跳转到应用商店的 Intent
+     */
+    public static Intent getAppStoreIntent(boolean isIncludeGooglePlayStore) {
+        return getAppStoreIntent(Utils.getApp().getPackageName(), isIncludeGooglePlayStore);
+    }
+
+    /**
+     * 获取跳转到应用商店的 Intent
+     *
+     * @param packageName 包名
+     * @return 跳转到应用商店的 Intent
+     */
+    public static Intent getAppStoreIntent(final String packageName) {
+        return getAppStoreIntent(packageName, false);
+    }
+
+    /**
+     * 获取跳转到应用商店的 Intent
+     * <p>优先跳转到手机自带的应用市场</p>
+     *
+     * @param packageName              包名
+     * @param isIncludeGooglePlayStore 是否包括 Google Play 商店
+     * @return 跳转到应用商店的 Intent
+     */
+    public static Intent getAppStoreIntent(final String packageName, boolean isIncludeGooglePlayStore) {
+        if (RomUtils.isSamsung()) {// 三星单独处理跳转三星市场
+            Intent samsungAppStoreIntent = getSamsungAppStoreIntent(packageName);
+            if (samsungAppStoreIntent != null) return samsungAppStoreIntent;
+        }
+        if (RomUtils.isLeeco()) {// 乐视单独处理跳转乐视市场
+            Intent leecoAppStoreIntent = getLeecoAppStoreIntent(packageName);
+            if (leecoAppStoreIntent != null) return leecoAppStoreIntent;
+        }
+
+        Uri uri = Uri.parse("market://details?id=" + packageName);
+        Intent intent = new Intent();
+        intent.setData(uri);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        List<ResolveInfo> resolveInfos = Utils.getApp().getPackageManager()
+                .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
+        if (resolveInfos == null || resolveInfos.size() == 0) {
+            Log.e(TAG, "No app store!");
+            return null;
+        }
+        Intent googleIntent = null;
+        for (ResolveInfo resolveInfo : resolveInfos) {
+            String pkgName = resolveInfo.activityInfo.packageName;
+            if (!GOOGLE_PLAY_APP_STORE_PACKAGE_NAME.equals(pkgName)) {
+                if (AppUtils.isAppSystem(pkgName)) {
+                    intent.setPackage(pkgName);
+                    return intent;
+                }
+            } else {
+                intent.setPackage(GOOGLE_PLAY_APP_STORE_PACKAGE_NAME);
+                googleIntent = intent;
+            }
+        }
+        if (isIncludeGooglePlayStore && googleIntent != null) {
+            return googleIntent;
+        }
+
+        intent.setPackage(resolveInfos.get(0).activityInfo.packageName);
+        return intent;
+    }
+
+    private static Intent getSamsungAppStoreIntent(final String packageName) {
+        Intent intent = new Intent();
+        intent.setClassName("com.sec.android.app.samsungapps", "com.sec.android.app.samsungapps.Main");
+        intent.setData(Uri.parse("http://www.samsungapps.com/appquery/appDetail.as?appId=" + packageName));
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        if (getAvailableIntentSize(intent) > 0) {
+            return intent;
+        }
+        return null;
+    }
+
+    private static Intent getLeecoAppStoreIntent(final String packageName) {
+        Intent intent = new Intent();
+        intent.setClassName("com.letv.app.appstore", "com.letv.app.appstore.appmodule.details.DetailsActivity");
+        intent.setAction("com.letv.app.appstore.appdetailactivity");
+        intent.putExtra("packageName", packageName);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        if (getAvailableIntentSize(intent) > 0) {
+            return intent;
+        }
+        return null;
+    }
+
+    private static int getAvailableIntentSize(final Intent intent) {
+        return Utils.getApp().getPackageManager()
+                .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
+                .size();
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/BatteryUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/BatteryUtils.java
new file mode 100644
index 0000000000..c00433374a
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/BatteryUtils.java
@@ -0,0 +1,213 @@
+package com.blankj.subutil.util;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.BatteryManager;
+import android.os.Build;
+import android.os.PowerManager;
+
+import com.blankj.utilcode.util.ThreadUtils;
+import com.blankj.utilcode.util.Utils;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.HashSet;
+import java.util.Set;
+
+import androidx.annotation.IntDef;
+import androidx.annotation.RequiresApi;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/31
+ *     desc  :
+ * </pre>
+ */
+public final class BatteryUtils {
+
+    @IntDef({BatteryStatus.UNKNOWN, BatteryStatus.DISCHARGING, BatteryStatus.CHARGING,
+            BatteryStatus.NOT_CHARGING, BatteryStatus.FULL})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface BatteryStatus {
+        int UNKNOWN      = BatteryManager.BATTERY_STATUS_UNKNOWN;
+        int DISCHARGING  = BatteryManager.BATTERY_STATUS_DISCHARGING;
+        int CHARGING     = BatteryManager.BATTERY_STATUS_CHARGING;
+        int NOT_CHARGING = BatteryManager.BATTERY_STATUS_NOT_CHARGING;
+        int FULL         = BatteryManager.BATTERY_STATUS_FULL;
+    }
+
+    /**
+     * Return whether the app is on the device's power whitelist.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static boolean isIgnoringBatteryOptimizations() {
+        return isIgnoringBatteryOptimizations(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return whether the app is on the device's power whitelist.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static boolean isIgnoringBatteryOptimizations(String pkgName) {
+        try {
+            PowerManager pm = (PowerManager) Utils.getApp().getSystemService(Context.POWER_SERVICE);
+            //noinspection ConstantConditions
+            return pm.isIgnoringBatteryOptimizations(pkgName);
+        } catch (Exception e) {
+            return true;
+        }
+    }
+
+    /**
+     * Register the status of battery changed listener.
+     *
+     * @param listener The status of battery changed listener.
+     */
+    public static void registerBatteryStatusChangedListener(final OnBatteryStatusChangedListener listener) {
+        BatteryChangedReceiver.getInstance().registerListener(listener);
+    }
+
+    /**
+     * Return whether the status of battery changed listener has been registered.
+     *
+     * @param listener The status of battery changed listener.
+     * @return true to registered, false otherwise.
+     */
+    public static boolean isRegistered(final OnBatteryStatusChangedListener listener) {
+        return BatteryChangedReceiver.getInstance().isRegistered(listener);
+    }
+
+    /**
+     * Unregister the status of battery changed listener.
+     *
+     * @param listener The status of battery changed listener.
+     */
+    public static void unregisterBatteryStatusChangedListener(final OnBatteryStatusChangedListener listener) {
+        BatteryChangedReceiver.getInstance().unregisterListener(listener);
+    }
+
+    public static final class BatteryChangedReceiver extends BroadcastReceiver {
+
+        private static BatteryChangedReceiver getInstance() {
+            return BatteryChangedReceiver.LazyHolder.INSTANCE;
+        }
+
+        private Set<OnBatteryStatusChangedListener> mListeners = new HashSet<>();
+
+        void registerListener(final OnBatteryStatusChangedListener listener) {
+            if (listener == null) return;
+            ThreadUtils.runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    int preSize = mListeners.size();
+                    mListeners.add(listener);
+                    if (preSize == 0 && mListeners.size() == 1) {
+                        IntentFilter intentFilter = new IntentFilter();
+                        intentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
+                        Utils.getApp().registerReceiver(BatteryChangedReceiver.getInstance(), intentFilter);
+                    }
+                }
+            });
+        }
+
+        boolean isRegistered(final OnBatteryStatusChangedListener listener) {
+            if (listener == null) return false;
+            return mListeners.contains(listener);
+        }
+
+        void unregisterListener(final OnBatteryStatusChangedListener listener) {
+            if (listener == null) return;
+            ThreadUtils.runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    int preSize = mListeners.size();
+                    mListeners.remove(listener);
+                    if (preSize == 1 && mListeners.size() == 0) {
+                        Utils.getApp().unregisterReceiver(BatteryChangedReceiver.getInstance());
+                    }
+                }
+            });
+        }
+
+        @Override
+        public void onReceive(Context context, final Intent intent) {
+            if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) {
+                ThreadUtils.runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
+                        int status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, BatteryStatus.UNKNOWN);
+                        for (OnBatteryStatusChangedListener listener : mListeners) {
+                            listener.onBatteryStatusChanged(new Status(level, status));
+                        }
+                    }
+                });
+            }
+        }
+
+        private static class LazyHolder {
+            private static final BatteryChangedReceiver INSTANCE = new BatteryChangedReceiver();
+        }
+    }
+
+    public interface OnBatteryStatusChangedListener {
+        void onBatteryStatusChanged(Status status);
+    }
+
+    public static final class Status {
+        private int level;
+        @BatteryStatus
+        private int status;
+
+        Status(int level, int status) {
+            this.level = level;
+            this.status = status;
+        }
+
+        public int getLevel() {
+            return level;
+        }
+
+        public void setLevel(int level) {
+            this.level = level;
+        }
+
+        @BatteryStatus
+        public int getStatus() {
+            return status;
+        }
+
+        public void setStatus(int status) {
+            this.status = status;
+        }
+
+        @Override
+        public String toString() {
+            return batteryStatus2String(status) + ": " + level + "%";
+        }
+
+        public static String batteryStatus2String(@BatteryStatus int status) {
+            if (status == BatteryStatus.DISCHARGING) {
+                return "discharging";
+            }
+            if (status == BatteryStatus.CHARGING) {
+                return "charging";
+            }
+            if (status == BatteryStatus.NOT_CHARGING) {
+                return "not_charging";
+            }
+            if (status == BatteryStatus.FULL) {
+                return "full";
+            }
+            return "unknown";
+        }
+    }
+}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/BitUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/BitUtils.java
similarity index 100%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/BitUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/BitUtils.java
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/CameraUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/CameraUtils.java
similarity index 100%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/CameraUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/CameraUtils.java
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/CoordinateUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
similarity index 84%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
index ee6d78a118..c205a52a75 100644
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
@@ -121,6 +121,34 @@ public static double[] wgs84ToBd09(double lng, double lat) {
         return gcj02ToBd09(gcj[0], gcj[1]);
     }
 
+    /**
+     * Mercator 坐标转 WGS84 坐标
+     *
+     * @param lng Mercator 坐标经度
+     * @param lat Mercator 坐标纬度
+     * @return WGS84 坐标：[经度，纬度]
+     */
+    public static double[] mercatorToWGS84(double lng, double lat) {
+        double x = lng / 20037508.34d * 180.;
+        double y = lat / 20037508.34d * 180.;
+        y = 180 / PI * (2 * Math.atan(Math.exp(y * PI / 180.0)) - PI / 2);
+        return new double[]{x, y};
+    }
+
+    /**
+     * WGS84 坐标转 Mercator 坐标
+     *
+     * @param lng WGS84 坐标经度
+     * @param lat WGS84 坐标纬度
+     * @return Mercator 坐标：[经度，纬度]
+     */
+    public static double[] wgs84ToMercator(double lng, double lat) {
+        double x = lng * 20037508.34D / 180.0;
+        double y = Math.log(Math.tan((90.0 + lat) * PI / 360.0)) / (PI / 180.);
+        y = y * 20037508.34D / 180.0;
+        return new double[]{x, y};
+    }
+
     private static double transformLat(double lng, double lat) {
         double ret = -100.0 + 2.0 * lng + 3.0 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng));
         ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0;
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/CountryUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/CountryUtils.java
new file mode 100644
index 0000000000..0d5a9531d1
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/CountryUtils.java
@@ -0,0 +1,326 @@
+package com.blankj.subutil.util;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.telephony.TelephonyManager;
+
+import com.blankj.utilcode.util.Utils;
+
+import java.util.HashMap;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/11
+ *     desc  : utils about country code
+ * </pre>
+ */
+public class CountryUtils {
+
+    private static HashMap<String, String> countryCodeMap;
+
+    /**
+     * Return the country code by sim card.
+     *
+     * @param defaultValue The default value.
+     * @return the country code
+     */
+    public static String getCountryCodeBySim(String defaultValue) {
+        String code = getCountryCodeFromMap().get(getCountryBySim());
+        if (code == null) {
+            return defaultValue;
+        }
+        return code;
+    }
+
+    /**
+     * Return the country code by system language.
+     *
+     * @param defaultValue The default value.
+     * @return the country code
+     */
+    public static String getCountryCodeByLanguage(String defaultValue) {
+        String code = getCountryCodeFromMap().get(getCountryByLanguage());
+        if (code == null) {
+            return defaultValue;
+        }
+        return code;
+    }
+
+    /**
+     * Return the country by sim card.
+     *
+     * @return the country
+     */
+    public static String getCountryBySim() {
+        TelephonyManager manager = (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
+        if (manager != null) {
+            return manager.getSimCountryIso().toUpperCase();
+        }
+        return "";
+    }
+
+    /**
+     * Return the country by system language.
+     *
+     * @return the country
+     */
+    public static String getCountryByLanguage() {
+        return Resources.getSystem().getConfiguration().locale.getCountry();
+    }
+
+    private static HashMap<String, String> getCountryCodeFromMap() {
+        if (countryCodeMap == null) {
+            countryCodeMap = new HashMap<>(256);
+            countryCodeMap.put("AL", "+355");
+            countryCodeMap.put("DZ", "+213");
+            countryCodeMap.put("AF", "+93");
+            countryCodeMap.put("AR", "+54");
+            countryCodeMap.put("AE", "+971");
+            countryCodeMap.put("AW", "+297");
+            countryCodeMap.put("OM", "+968");
+            countryCodeMap.put("AZ", "+994");
+            countryCodeMap.put("AC", "+247");
+            countryCodeMap.put("EG", "+20");
+            countryCodeMap.put("ET", "+251");
+            countryCodeMap.put("IE", "+353");
+            countryCodeMap.put("EE", "+372");
+            countryCodeMap.put("AD", "+376");
+            countryCodeMap.put("AO", "+244");
+            countryCodeMap.put("AI", "+1");
+            countryCodeMap.put("AG", "+1");
+            countryCodeMap.put("AT", "+43");
+            countryCodeMap.put("AX", "+358");
+            countryCodeMap.put("AU", "+61");
+            countryCodeMap.put("BB", "+1");
+            countryCodeMap.put("PG", "+675");
+            countryCodeMap.put("BS", "+1");
+            countryCodeMap.put("PK", "+92");
+            countryCodeMap.put("PY", "+595");
+            countryCodeMap.put("PS", "+970");
+            countryCodeMap.put("BH", "+973");
+            countryCodeMap.put("PA", "+507");
+            countryCodeMap.put("BR", "+55");
+            countryCodeMap.put("BY", "+375");
+            countryCodeMap.put("BM", "+1");
+            countryCodeMap.put("BG", "+359");
+            countryCodeMap.put("MP", "+1");
+            countryCodeMap.put("BJ", "+229");
+            countryCodeMap.put("BE", "+32");
+            countryCodeMap.put("IS", "+354");
+            countryCodeMap.put("PR", "+1");
+            countryCodeMap.put("PL", "+48");
+            countryCodeMap.put("BA", "+387");
+            countryCodeMap.put("BO", "+591");
+            countryCodeMap.put("BZ", "+501");
+            countryCodeMap.put("BW", "+267");
+            countryCodeMap.put("BT", "+975");
+            countryCodeMap.put("BF", "+226");
+            countryCodeMap.put("BI", "+257");
+            countryCodeMap.put("KP", "+850");
+            countryCodeMap.put("GQ", "+240");
+            countryCodeMap.put("DK", "+45");
+            countryCodeMap.put("DE", "+49");
+            countryCodeMap.put("TL", "+670");
+            countryCodeMap.put("TG", "+228");
+            countryCodeMap.put("DO", "+1");
+            countryCodeMap.put("DM", "+1");
+            countryCodeMap.put("RU", "+7");
+            countryCodeMap.put("EC", "+593");
+            countryCodeMap.put("ER", "+291");
+            countryCodeMap.put("FR", "+33");
+            countryCodeMap.put("FO", "+298");
+            countryCodeMap.put("PF", "+689");
+            countryCodeMap.put("GF", "+594");
+            countryCodeMap.put("VA", "+39");
+            countryCodeMap.put("PH", "+63");
+            countryCodeMap.put("FJ", "+679");
+            countryCodeMap.put("FI", "+358");
+            countryCodeMap.put("CV", "+238");
+            countryCodeMap.put("FK", "+500");
+            countryCodeMap.put("GM", "+220");
+            countryCodeMap.put("CG", "+242");
+            countryCodeMap.put("CD", "+243");
+            countryCodeMap.put("CO", "+57");
+            countryCodeMap.put("CR", "+506");
+            countryCodeMap.put("GG", "+44");
+            countryCodeMap.put("GD", "+1");
+            countryCodeMap.put("GL", "+299");
+            countryCodeMap.put("GE", "+995");
+            countryCodeMap.put("CU", "+53");
+            countryCodeMap.put("GP", "+590");
+            countryCodeMap.put("GU", "+1");
+            countryCodeMap.put("GY", "+592");
+            countryCodeMap.put("KZ", "+7");
+            countryCodeMap.put("HT", "+509");
+            countryCodeMap.put("KR", "+82");
+            countryCodeMap.put("NL", "+31");
+            countryCodeMap.put("BQ", "+599");
+            countryCodeMap.put("SX", "+1");
+            countryCodeMap.put("ME", "+382");
+            countryCodeMap.put("HN", "+504");
+            countryCodeMap.put("KI", "+686");
+            countryCodeMap.put("DJ", "+253");
+            countryCodeMap.put("KG", "+996");
+            countryCodeMap.put("GN", "+224");
+            countryCodeMap.put("GW", "+245");
+            countryCodeMap.put("CA", "+1");
+            countryCodeMap.put("GH", "+233");
+            countryCodeMap.put("GA", "+241");
+            countryCodeMap.put("KH", "+855");
+            countryCodeMap.put("CZ", "+420");
+            countryCodeMap.put("ZW", "+263");
+            countryCodeMap.put("CM", "+237");
+            countryCodeMap.put("QA", "+974");
+            countryCodeMap.put("KY", "+1");
+            countryCodeMap.put("CC", "+61");
+            countryCodeMap.put("KM", "+269");
+            countryCodeMap.put("XK", "+383");
+            countryCodeMap.put("CI", "+225");
+            countryCodeMap.put("KW", "+965");
+            countryCodeMap.put("HR", "+385");
+            countryCodeMap.put("KE", "+254");
+            countryCodeMap.put("CK", "+682");
+            countryCodeMap.put("CW", "+599");
+            countryCodeMap.put("LV", "+371");
+            countryCodeMap.put("LS", "+266");
+            countryCodeMap.put("LA", "+856");
+            countryCodeMap.put("LB", "+961");
+            countryCodeMap.put("LT", "+370");
+            countryCodeMap.put("LR", "+231");
+            countryCodeMap.put("LY", "+218");
+            countryCodeMap.put("LI", "+423");
+            countryCodeMap.put("RE", "+262");
+            countryCodeMap.put("LU", "+352");
+            countryCodeMap.put("RW", "+250");
+            countryCodeMap.put("RO", "+40");
+            countryCodeMap.put("MG", "+261");
+            countryCodeMap.put("IM", "+44");
+            countryCodeMap.put("MV", "+960");
+            countryCodeMap.put("MT", "+356");
+            countryCodeMap.put("MW", "+265");
+            countryCodeMap.put("MY", "+60");
+            countryCodeMap.put("ML", "+223");
+            countryCodeMap.put("MK", "+389");
+            countryCodeMap.put("MH", "+692");
+            countryCodeMap.put("MQ", "+596");
+            countryCodeMap.put("YT", "+262");
+            countryCodeMap.put("MU", "+230");
+            countryCodeMap.put("MR", "+222");
+            countryCodeMap.put("US", "+1");
+            countryCodeMap.put("AS", "+1");
+            countryCodeMap.put("VI", "+1");
+            countryCodeMap.put("MN", "+976");
+            countryCodeMap.put("MS", "+1");
+            countryCodeMap.put("BD", "+880");
+            countryCodeMap.put("PE", "+51");
+            countryCodeMap.put("FM", "+691");
+            countryCodeMap.put("MM", "+95");
+            countryCodeMap.put("MD", "+373");
+            countryCodeMap.put("MA", "+212");
+            countryCodeMap.put("MC", "+377");
+            countryCodeMap.put("MZ", "+258");
+            countryCodeMap.put("MX", "+52");
+            countryCodeMap.put("NA", "+264");
+            countryCodeMap.put("ZA", "+27");
+            countryCodeMap.put("SS", "+211");
+            countryCodeMap.put("NR", "+674");
+            countryCodeMap.put("NI", "+505");
+            countryCodeMap.put("NP", "+977");
+            countryCodeMap.put("NE", "+227");
+            countryCodeMap.put("NG", "+234");
+            countryCodeMap.put("NU", "+683");
+            countryCodeMap.put("NO", "+47");
+            countryCodeMap.put("NF", "+672");
+            countryCodeMap.put("PW", "+680");
+            countryCodeMap.put("PT", "+351");
+            countryCodeMap.put("JP", "+81");
+            countryCodeMap.put("SE", "+46");
+            countryCodeMap.put("CH", "+41");
+            countryCodeMap.put("SV", "+503");
+            countryCodeMap.put("WS", "+685");
+            countryCodeMap.put("RS", "+381");
+            countryCodeMap.put("SL", "+232");
+            countryCodeMap.put("SN", "+221");
+            countryCodeMap.put("CY", "+357");
+            countryCodeMap.put("SC", "+248");
+            countryCodeMap.put("SA", "+966");
+            countryCodeMap.put("BL", "+590");
+            countryCodeMap.put("CX", "+61");
+            countryCodeMap.put("ST", "+239");
+            countryCodeMap.put("SH", "+290");
+            countryCodeMap.put("PN", "+870");
+            countryCodeMap.put("KN", "+1");
+            countryCodeMap.put("LC", "+1");
+            countryCodeMap.put("MF", "+590");
+            countryCodeMap.put("SM", "+378");
+            countryCodeMap.put("PM", "+508");
+            countryCodeMap.put("VC", "+1");
+            countryCodeMap.put("LK", "+94");
+            countryCodeMap.put("SK", "+421");
+            countryCodeMap.put("SI", "+386");
+            countryCodeMap.put("SJ", "+47");
+            countryCodeMap.put("SZ", "+268");
+            countryCodeMap.put("SD", "+249");
+            countryCodeMap.put("SR", "+597");
+            countryCodeMap.put("SB", "+677");
+            countryCodeMap.put("SO", "+252");
+            countryCodeMap.put("TJ", "+992");
+            countryCodeMap.put("TH", "+66");
+            countryCodeMap.put("TZ", "+255");
+            countryCodeMap.put("TO", "+676");
+            countryCodeMap.put("TC", "+1");
+            countryCodeMap.put("TA", "+290");
+            countryCodeMap.put("TT", "+1");
+            countryCodeMap.put("TN", "+216");
+            countryCodeMap.put("TV", "+688");
+            countryCodeMap.put("TR", "+90");
+            countryCodeMap.put("TM", "+993");
+            countryCodeMap.put("TK", "+690");
+            countryCodeMap.put("WF", "+681");
+            countryCodeMap.put("VU", "+678");
+            countryCodeMap.put("GT", "+502");
+            countryCodeMap.put("VE", "+58");
+            countryCodeMap.put("BN", "+673");
+            countryCodeMap.put("UG", "+256");
+            countryCodeMap.put("UA", "+380");
+            countryCodeMap.put("UY", "+598");
+            countryCodeMap.put("UZ", "+998");
+            countryCodeMap.put("GR", "+30");
+            countryCodeMap.put("ES", "+34");
+            countryCodeMap.put("EH", "+212");
+            countryCodeMap.put("SG", "+65");
+            countryCodeMap.put("NC", "+687");
+            countryCodeMap.put("NZ", "+64");
+            countryCodeMap.put("HU", "+36");
+            countryCodeMap.put("SY", "+963");
+            countryCodeMap.put("JM", "+1");
+            countryCodeMap.put("AM", "+374");
+            countryCodeMap.put("YE", "+967");
+            countryCodeMap.put("IQ", "+964");
+            countryCodeMap.put("UM", "+1");
+            countryCodeMap.put("IR", "+98");
+            countryCodeMap.put("IL", "+972");
+            countryCodeMap.put("IT", "+39");
+            countryCodeMap.put("IN", "+91");
+            countryCodeMap.put("ID", "+62");
+            countryCodeMap.put("GB", "+44");
+            countryCodeMap.put("VG", "+1");
+            countryCodeMap.put("IO", "+246");
+            countryCodeMap.put("JO", "+962");
+            countryCodeMap.put("VN", "+84");
+            countryCodeMap.put("ZM", "+260");
+            countryCodeMap.put("JE", "+44");
+            countryCodeMap.put("TD", "+235");
+            countryCodeMap.put("GI", "+350");
+            countryCodeMap.put("CL", "+56");
+            countryCodeMap.put("CF", "+236");
+            countryCodeMap.put("CN", "+86");
+            countryCodeMap.put("MO", "+853");
+            countryCodeMap.put("TW", "+886");
+            countryCodeMap.put("HK", "+852");
+        }
+        return countryCodeMap;
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/DangerousUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/DangerousUtils.java
new file mode 100644
index 0000000000..d7ed5d0ea9
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/DangerousUtils.java
@@ -0,0 +1,355 @@
+package com.blankj.subutil.util;
+
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+import android.os.PowerManager;
+import android.telephony.SmsManager;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.blankj.utilcode.util.IntentUtils;
+import com.blankj.utilcode.util.ShellUtils;
+import com.blankj.utilcode.util.Utils;
+
+import java.io.File;
+import java.lang.reflect.Method;
+import java.util.List;
+
+import androidx.annotation.RequiresPermission;
+
+import static android.Manifest.permission.MODIFY_PHONE_STATE;
+import static android.Manifest.permission.SEND_SMS;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/29
+ *     desc  :
+ * </pre>
+ */
+public class DangerousUtils {
+
+    private DangerousUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // AppUtils
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Install the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean installAppSilent(final String filePath) {
+        return installAppSilent(getFileByPath(filePath), null);
+    }
+
+    /**
+     * Install the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
+     *
+     * @param file The file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean installAppSilent(final File file) {
+        return installAppSilent(file, null);
+    }
+
+
+    /**
+     * Install the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
+     *
+     * @param filePath The path of file.
+     * @param params   The params of installation(e.g.,<code>-r</code>, <code>-s</code>).
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean installAppSilent(final String filePath, final String params) {
+        return installAppSilent(getFileByPath(filePath), params);
+    }
+
+    /**
+     * Install the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
+     *
+     * @param file   The file.
+     * @param params The params of installation(e.g.,<code>-r</code>, <code>-s</code>).
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean installAppSilent(final File file, final String params) {
+        return installAppSilent(file, params, isDeviceRooted());
+    }
+
+    /**
+     * Install the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
+     *
+     * @param file     The file.
+     * @param params   The params of installation(e.g.,<code>-r</code>, <code>-s</code>).
+     * @param isRooted True to use root, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean installAppSilent(final File file,
+                                           final String params,
+                                           final boolean isRooted) {
+        if (!isFileExists(file)) return false;
+        String filePath = '"' + file.getAbsolutePath() + '"';
+        String command = "LD_LIBRARY_PATH=/vendor/lib*:/system/lib* pm install " +
+                (params == null ? "" : params + " ")
+                + filePath;
+        ShellUtils.CommandResult commandResult = ShellUtils.execCmd(command, isRooted);
+        if (commandResult.successMsg != null
+                && commandResult.successMsg.toLowerCase().contains("success")) {
+            return true;
+        } else {
+            Log.e("AppUtils", "installAppSilent successMsg: " + commandResult.successMsg +
+                    ", errorMsg: " + commandResult.errorMsg);
+            return false;
+        }
+    }
+
+    /**
+     * Uninstall the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.DELETE_PACKAGES" />}</p>
+     *
+     * @param packageName The name of the package.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean uninstallAppSilent(final String packageName) {
+        return uninstallAppSilent(packageName, false);
+    }
+
+    /**
+     * Uninstall the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.DELETE_PACKAGES" />}</p>
+     *
+     * @param packageName The name of the package.
+     * @param isKeepData  Is keep the data.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean uninstallAppSilent(final String packageName, final boolean isKeepData) {
+        return uninstallAppSilent(packageName, isKeepData, isDeviceRooted());
+    }
+
+    /**
+     * Uninstall the app silently.
+     * <p>Without root permission must hold
+     * {@code android:sharedUserId="android.uid.shell"} and
+     * {@code <uses-permission android:name="android.permission.DELETE_PACKAGES" />}</p>
+     *
+     * @param packageName The name of the package.
+     * @param isKeepData  Is keep the data.
+     * @param isRooted    True to use root, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean uninstallAppSilent(final String packageName,
+                                             final boolean isKeepData,
+                                             final boolean isRooted) {
+        if (isSpace(packageName)) return false;
+        String command = "LD_LIBRARY_PATH=/vendor/lib*:/system/lib* pm uninstall "
+                + (isKeepData ? "-k " : "")
+                + packageName;
+        ShellUtils.CommandResult commandResult = ShellUtils.execCmd(command, isRooted);
+        if (commandResult.successMsg != null
+                && commandResult.successMsg.toLowerCase().contains("success")) {
+            return true;
+        } else {
+            Log.e("AppUtils", "uninstallAppSilent successMsg: " + commandResult.successMsg +
+                    ", errorMsg: " + commandResult.errorMsg);
+            return false;
+        }
+    }
+
+    private static boolean isFileExists(final File file) {
+        return file != null && file.exists();
+    }
+
+    private static File getFileByPath(final String filePath) {
+        return isSpace(filePath) ? null : new File(filePath);
+    }
+
+    private static boolean isSpace(final String s) {
+        if (s == null) return true;
+        for (int i = 0, len = s.length(); i < len; ++i) {
+            if (!Character.isWhitespace(s.charAt(i))) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private static boolean isDeviceRooted() {
+        String su = "su";
+        String[] locations = {"/system/bin/", "/system/xbin/", "/sbin/", "/system/sd/xbin/",
+                "/system/bin/failsafe/", "/data/local/xbin/", "/data/local/bin/", "/data/local/",
+                "/system/sbin/", "/usr/bin/", "/vendor/bin/"};
+        for (String location : locations) {
+            if (new File(location + su).exists()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // DeviceUtils
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Shutdown the device
+     * <p>Requires root permission
+     * or hold {@code android:sharedUserId="android.uid.system"},
+     * {@code <uses-permission android:name="android.permission.SHUTDOWN" />}
+     * in manifest.</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean shutdown() {
+        try {
+            ShellUtils.CommandResult result = ShellUtils.execCmd("reboot -p", true);
+            if (result.result == 0) return true;
+            Utils.getApp().startActivity(IntentUtils.getShutdownIntent());
+            return true;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /**
+     * Reboot the device.
+     * <p>Requires root permission
+     * or hold {@code android:sharedUserId="android.uid.system"} in manifest.</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean reboot() {
+        try {
+            ShellUtils.CommandResult result = ShellUtils.execCmd("reboot", true);
+            if (result.result == 0) return true;
+            Intent intent = new Intent(Intent.ACTION_REBOOT);
+            intent.putExtra("nowait", 1);
+            intent.putExtra("interval", 1);
+            intent.putExtra("window", 0);
+            Utils.getApp().sendBroadcast(intent);
+            return true;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /**
+     * Reboot the device.
+     * <p>Requires root permission
+     * or hold {@code android:sharedUserId="android.uid.system"},
+     * {@code <uses-permission android:name="android.permission.REBOOT" />}</p>
+     *
+     * @param reason code to pass to the kernel (e.g., "recovery") to
+     *               request special boot modes, or null.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean reboot(final String reason) {
+        try {
+            PowerManager pm = (PowerManager) Utils.getApp().getSystemService(Context.POWER_SERVICE);
+            pm.reboot(reason);
+            return true;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /**
+     * Reboot the device to recovery.
+     * <p>Requires root permission.</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean reboot2Recovery() {
+        ShellUtils.CommandResult result = ShellUtils.execCmd("reboot recovery", true);
+        return result.result == 0;
+    }
+
+    /**
+     * Reboot the device to bootloader.
+     * <p>Requires root permission.</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean reboot2Bootloader() {
+        ShellUtils.CommandResult result = ShellUtils.execCmd("reboot bootloader", true);
+        return result.result == 0;
+    }
+
+
+    /**
+     * Enable or disable mobile data.
+     * <p>Must hold {@code android:sharedUserId="android.uid.system"},
+     * {@code <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />}</p>
+     *
+     * @param enabled True to enabled, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    @RequiresPermission(MODIFY_PHONE_STATE)
+    public static boolean setMobileDataEnabled(final boolean enabled) {
+        try {
+            TelephonyManager tm =
+                    (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
+            if (tm == null) return false;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                tm.setDataEnabled(enabled);
+                return true;
+            }
+            Method setDataEnabledMethod =
+                    tm.getClass().getDeclaredMethod("setDataEnabled", boolean.class);
+            setDataEnabledMethod.invoke(tm, enabled);
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return false;
+    }
+
+    /**
+     * Send sms silently.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.SEND_SMS" />}</p>
+     *
+     * @param phoneNumber The phone number.
+     * @param content     The content.
+     */
+    @RequiresPermission(SEND_SMS)
+    public static void sendSmsSilent(final String phoneNumber, final String content) {
+        if (TextUtils.isEmpty(content)) return;
+        PendingIntent sentIntent = PendingIntent.getBroadcast(Utils.getApp(), 0, new Intent("send"), 0);
+        SmsManager smsManager = SmsManager.getDefault();
+        if (content.length() >= 70) {
+            List<String> ms = smsManager.divideMessage(content);
+            for (String str : ms) {
+                smsManager.sendTextMessage(phoneNumber, null, str, sentIntent, null);
+            }
+        } else {
+            smsManager.sendTextMessage(phoneNumber, null, content, sentIntent, null);
+        }
+    }
+}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/GlideUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/GlideUtils.java
similarity index 100%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/GlideUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/GlideUtils.java
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/HttpsUtil.java b/lib/subutil/src/main/java/com/blankj/subutil/util/HttpsUtil.java
new file mode 100644
index 0000000000..e0acb09850
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/HttpsUtil.java
@@ -0,0 +1,131 @@
+package com.blankj.subutil.util;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Scanner;
+
+/**
+ * <pre>
+ *     author: MilkZS
+ *     time  : 2019/01/09
+ *     desc  : https 工具类
+ * </pre>
+ */
+public final class HttpsUtil {
+
+    private static final int CONNECT_TIMEOUT_TIME = 15000;
+    private static final int READ_TIMEOUT_TIME    = 19000;
+
+    /**
+     * POST + JSON
+     *
+     * @param data send data
+     * @param url  target url
+     * @return data receive from server
+     * @author MilkZS
+     */
+    public static String postJson(String data, String url) {
+        return doHttpAction(data, true, true, url);
+    }
+
+    /**
+     * POST + FORM
+     *
+     * @param data send data
+     * @param url  target url
+     * @return data receive from serv
+     * @author MilkZS
+     */
+    public static String postForm(String data, String url) {
+        return doHttpAction(data, false, true, url);
+    }
+
+    /**
+     * GET + JSON
+     *
+     * @param data send data
+     * @param url  target url
+     * @return data receive from server
+     * @author MilkZS
+     */
+    public static String getJson(String data, String url) {
+        return doHttpAction(data, true, false, url);
+    }
+
+    /**
+     * GET + FORM
+     *
+     * @param data send data
+     * @param url  target url
+     * @return data receive from server
+     * @author MilkZS
+     */
+    public static String getForm(String data, String url) {
+        return doHttpAction(data, false, false, url);
+    }
+
+    private static String doHttpAction(String data, boolean json, boolean post, String url) {
+        HttpURLConnection connection = null;
+        DataOutputStream os = null;
+        InputStream is = null;
+        try {
+            URL sUrl = new URL(url);
+            connection = (HttpURLConnection) sUrl.openConnection();
+            connection.setConnectTimeout(CONNECT_TIMEOUT_TIME);
+            connection.setReadTimeout(READ_TIMEOUT_TIME);
+            if (post) {
+                connection.setRequestMethod("POST");
+            } else {
+                connection.setRequestMethod("GET");
+            }
+            //允许输入输出
+            connection.setDoInput(true);
+            connection.setDoOutput(true);
+            // 是否使用缓冲
+            connection.setUseCaches(false);
+            // 本次连接是否处理重定向，设置成true，系统自动处理重定向；
+            // 设置成false，则需要自己从http reply中分析新的url自己重新连接。
+            connection.setInstanceFollowRedirects(true);
+            // 设置请求头里的属性
+            if (json) {
+                connection.setRequestProperty("Content-Type", "application/json");
+            } else {
+                connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
+                connection.setRequestProperty("Content-Length", data.length() + "");
+            }
+            connection.connect();
+
+            os = new DataOutputStream(connection.getOutputStream());
+            os.write(data.getBytes(), 0, data.getBytes().length);
+            os.flush();
+            os.close();
+
+            is = connection.getInputStream();
+            Scanner scan = new Scanner(is);
+            scan.useDelimiter("\\A");
+            if (scan.hasNext()) return scan.next();
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if (connection != null) connection.disconnect();
+            if (os != null) {
+                try {
+                    os.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/LocationUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
similarity index 98%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/LocationUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
index 7ee8747902..ba65b13900 100755
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/LocationUtils.java
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
@@ -11,9 +11,11 @@
 import android.location.LocationProvider;
 import android.os.Bundle;
 import android.provider.Settings;
-import android.support.annotation.RequiresPermission;
+import androidx.annotation.RequiresPermission;
 import android.util.Log;
 
+import com.blankj.utilcode.util.Utils;
+
 import java.io.IOException;
 import java.util.List;
 import java.util.Locale;
@@ -114,7 +116,6 @@ private LocationUtils() {
      */
     public static boolean isGpsEnabled() {
         LocationManager lm = (LocationManager) Utils.getApp().getSystemService(Context.LOCATION_SERVICE);
-        //noinspection ConstantConditions
         return lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
     }
 
@@ -125,7 +126,6 @@ public static boolean isGpsEnabled() {
      */
     public static boolean isLocationEnabled() {
         LocationManager lm = (LocationManager) Utils.getApp().getSystemService(Context.LOCATION_SERVICE);
-        //noinspection ConstantConditions
         return lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER)
                 || lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
     }
@@ -157,7 +157,6 @@ public static void openGpsSettings() {
     public static boolean register(long minTime, long minDistance, OnLocationChangeListener listener) {
         if (listener == null) return false;
         mLocationManager = (LocationManager) Utils.getApp().getSystemService(Context.LOCATION_SERVICE);
-        //noinspection ConstantConditions
         if (!mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)
                 && !mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
             Log.d("LocationUtils", "无法定位，请打开定位服务");
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/LunarUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/LunarUtils.java
similarity index 100%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/LunarUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/LunarUtils.java
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/PinyinUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
similarity index 99%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/PinyinUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
index 22486b3a91..934408c65e 100644
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/PinyinUtils.java
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
@@ -1,6 +1,6 @@
 package com.blankj.subutil.util;
 
-import android.support.v4.util.SimpleArrayMap;
+import androidx.collection.SimpleArrayMap;
 
 /**
  * <pre>
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/RetrofitUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/RetrofitUtils.java
similarity index 100%
rename from subutil/lib/src/main/java/com/blankj/subutil/util/RetrofitUtils.java
rename to lib/subutil/src/main/java/com/blankj/subutil/util/RetrofitUtils.java
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/TemperatureUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/TemperatureUtils.java
new file mode 100644
index 0000000000..f50687ab59
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/TemperatureUtils.java
@@ -0,0 +1,40 @@
+package com.blankj.subutil.util;
+
+/**
+ * <pre>
+ *     author: Faramarz Afzali
+ *     time  : 2020/09/05
+ *     desc  : This class is intended for converting temperatures into different units.
+ *             C refers to the Celsius unit
+ *             F refers to the Fahrenheit unit
+ *             K refers to the Kelvin unit
+ * </pre>
+ */
+public final class TemperatureUtils {
+
+    public static float cToF(float temp) {
+        return (temp * 9) / 5 + 32;
+    }
+
+    public static float cToK(float temp) {
+        return temp + 273.15f;
+    }
+
+
+    public static float fToC(float temp) {
+        return (temp - 32) * 5 / 9;
+    }
+
+    public static float fToK(float temp) {
+        return temp + 255.3722222222f;
+    }
+
+
+    public static float kToC(float temp) {
+        return temp - 273.15f;
+    }
+
+    public static float kToF(float temp) {
+        return temp - 459.67f;
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/Utils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/Utils.java
new file mode 100644
index 0000000000..91b336abcf
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/Utils.java
@@ -0,0 +1,143 @@
+package com.blankj.subutil.util;
+
+import android.annotation.SuppressLint;
+import android.app.Application;
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.lang.reflect.InvocationTargetException;
+
+/**
+ * <pre>
+ *     author:
+ *                                      ___           ___           ___         ___
+ *         _____                       /  /\         /__/\         /__/|       /  /\
+ *        /  /::\                     /  /::\        \  \:\       |  |:|      /  /:/
+ *       /  /:/\:\    ___     ___    /  /:/\:\        \  \:\      |  |:|     /__/::\
+ *      /  /:/~/::\  /__/\   /  /\  /  /:/~/::\   _____\__\:\   __|  |:|     \__\/\:\
+ *     /__/:/ /:/\:| \  \:\ /  /:/ /__/:/ /:/\:\ /__/::::::::\ /__/\_|:|____    \  \:\
+ *     \  \:\/:/~/:/  \  \:\  /:/  \  \:\/:/__\/ \  \:\~~\~~\/ \  \:\/:::::/     \__\:\
+ *      \  \::/ /:/    \  \:\/:/    \  \::/       \  \:\  ~~~   \  \::/~~~~      /  /:/
+ *       \  \:\/:/      \  \::/      \  \:\        \  \:\        \  \:\         /__/:/
+ *        \  \::/        \__\/        \  \:\        \  \:\        \  \:\        \__\/
+ *         \__\/                       \__\/         \__\/         \__\/
+ *     blog  : http://blankj.com
+ *     time  : 16/12/08
+ *     desc  : utils about initialization
+ * </pre>
+ */
+public final class Utils {
+
+    @SuppressLint("StaticFieldLeak")
+    private static Application sApplication;
+
+    private Utils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Init utils.
+     * <p>Init it in the class of Application.</p>
+     *
+     * @param context context
+     */
+    public static void init(final Context context) {
+        if (context == null) {
+            init(getApplicationByReflect());
+            return;
+        }
+        init((Application) context.getApplicationContext());
+    }
+
+    /**
+     * Init utils.
+     * <p>Init it in the class of Application.</p>
+     *
+     * @param app application
+     */
+    public static void init(final Application app) {
+        if (sApplication == null) {
+            if (app == null) {
+                Utils.sApplication = getApplicationByReflect();
+            } else {
+                Utils.sApplication = app;
+            }
+        }
+    }
+
+    /**
+     * Return the context of Application object.
+     *
+     * @return the context of Application object
+     */
+    public static Application getApp() {
+        if (sApplication != null) return sApplication;
+        return getApplicationByReflect();
+    }
+
+    private static Application getApplicationByReflect() {
+        try {
+            @SuppressLint("PrivateApi")
+            Class<?> activityThread = Class.forName("android.app.ActivityThread");
+            Object at = activityThread.getMethod("currentActivityThread").invoke(null);
+            Object app = activityThread.getMethod("getApplication").invoke(at);
+            if (app == null) {
+                throw new NullPointerException("u should init first");
+            }
+            init((Application) app);
+            return sApplication;
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        throw new NullPointerException("u should init first");
+    }
+
+
+    public static final class ContentProvider4SubUtil extends ContentProvider {
+
+        @Override
+        public boolean onCreate() {
+            Utils.init(getContext());
+            return true;
+        }
+
+        @Nullable
+        @Override
+        public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) {
+            return null;
+        }
+
+        @Nullable
+        @Override
+        public String getType(@NonNull Uri uri) {
+            return null;
+        }
+
+        @Nullable
+        @Override
+        public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) {
+            return null;
+        }
+
+        @Override
+        public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs) {
+            return 0;
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/Chain.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Chain.java
new file mode 100644
index 0000000000..ddd71e2abc
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Chain.java
@@ -0,0 +1,4 @@
+package com.blankj.subutil.util.http;
+
+public interface Chain {
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/ExecutorFactory.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/ExecutorFactory.java
new file mode 100644
index 0000000000..2f26fb9c24
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/ExecutorFactory.java
@@ -0,0 +1,48 @@
+package com.blankj.subutil.util.http;
+
+import android.os.Handler;
+import android.os.Looper;
+
+import androidx.annotation.NonNull;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public final class ExecutorFactory {
+
+    private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
+
+    private static final Executor DEFAULT_WORK_EXECUTOR = new ThreadPoolExecutor(2 * CPU_COUNT + 1,
+            2 * CPU_COUNT + 1,
+            30, TimeUnit.SECONDS,
+            new LinkedBlockingQueue<Runnable>(128),
+            new ThreadFactory() {
+                private final AtomicInteger mCount = new AtomicInteger(1);
+
+                public Thread newThread(@NonNull Runnable r) {
+                    return new Thread(r, "http-pool-" + mCount.getAndIncrement());
+                }
+            }
+    );
+
+    private static final Executor DEFAULT_MAIN_EXECUTOR = new Executor() {
+        private final Handler mHandler = new Handler(Looper.getMainLooper());
+
+        @Override
+        public void execute(@NonNull Runnable command) {
+            mHandler.post(command);
+        }
+    };
+
+    public static Executor getDefaultWorkExecutor() {
+        return DEFAULT_WORK_EXECUTOR;
+    }
+
+    public static Executor getDefaultMainExecutor() {
+        return DEFAULT_MAIN_EXECUTOR;
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/Headers.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Headers.java
new file mode 100644
index 0000000000..2fe83571b3
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Headers.java
@@ -0,0 +1,12 @@
+package com.blankj.subutil.util.http;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class Headers {
+
+    private Map<String, List<String>> header = new HashMap<>();
+
+
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/HttpUtils.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/HttpUtils.java
new file mode 100644
index 0000000000..8c06c36e3c
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/HttpUtils.java
@@ -0,0 +1,238 @@
+package com.blankj.subutil.util.http;
+
+import android.accounts.NetworkErrorException;
+
+import androidx.annotation.NonNull;
+
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.Proxy;
+import java.nio.charset.Charset;
+import java.util.Map;
+import java.util.concurrent.Executor;
+
+import javax.net.ssl.HttpsURLConnection;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/08
+ *     desc  : utils about http
+ * </pre>
+ */
+public final class HttpUtils {
+
+    private static final String BOUNDARY    = java.util.UUID.randomUUID().toString();
+    private static final String TWO_HYPHENS = "--";
+
+    private static final int CONNECT_TIMEOUT_TIME = 15000;
+    private static final int READ_TIMEOUT_TIME    = 20000;
+    private static final int BUFFER_SIZE          = 8192;
+
+    private static final Config CONFIG = new Config();
+
+
+    private final  Config    mConfig;
+    private static HttpUtils sHttpUtils;
+
+    private HttpUtils(@NonNull Config config) {
+        mConfig = config;
+    }
+
+    public static HttpUtils getInstance(@NonNull Config config) {
+        if (sHttpUtils == null) {
+            synchronized (HttpUtils.class) {
+                sHttpUtils = new HttpUtils(config);
+            }
+        }
+        return sHttpUtils;
+    }
+
+    public static void call(@NonNull final Request request, @NonNull final ResponseCallback callback) {
+        new Call(request, callback).run();
+    }
+
+    private static HttpURLConnection getConnection(final Request request) throws IOException {
+        HttpURLConnection conn = (HttpURLConnection) request.mURL.openConnection();
+        if (conn instanceof HttpsURLConnection) {
+            HttpsURLConnection httpsConn = (HttpsURLConnection) conn;
+            httpsConn.setSSLSocketFactory(CONFIG.sslConfig.mSSLSocketFactory);
+            httpsConn.setHostnameVerifier(CONFIG.sslConfig.mHostnameVerifier);
+        }
+        System.out.println(conn.getHeaderField("USE"));
+        addHeader(conn, request.mHeader);
+        addBody(conn, request.mBody);
+        conn.setConnectTimeout(CONFIG.connectTimeout);
+        conn.setReadTimeout(CONFIG.readTimeout);
+        return conn;
+    }
+
+    private static void addBody(HttpURLConnection conn, Request.Body body) throws IOException {
+        if (body == null) {
+            conn.setRequestMethod("GET");
+        } else {
+            conn.setRequestMethod("POST");
+            conn.setUseCaches(false);
+            conn.setDoOutput(true);
+            conn.setRequestProperty("content-type", body.mediaType);
+            if (body.length > 0) {
+                conn.setRequestProperty("content-length", String.valueOf(body.length));
+            }
+            BufferedOutputStream bos = new BufferedOutputStream(conn.getOutputStream(), 10240);
+            if (body.bis != null) {
+                byte[] buffer = new byte[10240];
+                for (int len; (len = body.bis.read(buffer)) != -1; ) {
+                    bos.write(buffer, 0, len);
+                }
+                bos.close();
+                body.bis.close();
+            }
+        }
+    }
+
+    private static void addHeader(final HttpURLConnection conn, final Map<String, String> headerMap) {
+        if (headerMap != null) {
+            for (String key : headerMap.keySet()) {
+                conn.setRequestProperty(key, headerMap.get(key));
+            }
+        }
+    }
+
+    private static boolean isSpace(final String s) {
+        if (s == null) return true;
+        for (int i = 0, len = s.length(); i < len; ++i) {
+            if (!Character.isWhitespace(s.charAt(i))) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    static String is2String(final InputStream is, final String charset) {
+        ByteArrayOutputStream result = new ByteArrayOutputStream();
+        byte[] buffer = new byte[8192];
+        try {
+            for (int len; (len = is.read(buffer)) != -1; ) {
+                result.write(buffer, 0, len);
+            }
+            return result.toString(charset);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return "";
+        } finally {
+            try {
+                is.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    static boolean writeFileFromIS(final File file,
+                                   final InputStream is) {
+        if (!createOrExistsFile(file) || is == null) return false;
+        OutputStream os = null;
+        try {
+            os = new BufferedOutputStream(new FileOutputStream(file));
+            byte[] data = new byte[8192];
+            for (int len; (len = is.read(data)) != -1; ) {
+                os.write(data, 0, len);
+            }
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        } finally {
+            try {
+                is.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            try {
+                if (os != null) {
+                    os.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    private static boolean createOrExistsFile(final File file) {
+        if (file == null) return false;
+        if (file.exists()) return file.isFile();
+        if (!createOrExistsDir(file.getParentFile())) return false;
+        try {
+            return file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    private static boolean createOrExistsDir(final File file) {
+        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
+    }
+
+    public static class Config {
+
+        private Executor workExecutor = ExecutorFactory.getDefaultWorkExecutor();
+        private Executor mainExecutor = ExecutorFactory.getDefaultMainExecutor();
+
+        private SSLConfig sslConfig      = SSLConfig.DEFAULT_SSL_CONFIG;
+        private int       connectTimeout = CONNECT_TIMEOUT_TIME;
+        private int       readTimeout    = READ_TIMEOUT_TIME;
+        private Charset   charset        = Charset.defaultCharset();
+
+        private Proxy proxy = null;
+    }
+
+    static class Call implements Runnable {
+
+        private Request          request;
+        private ResponseCallback callback;
+
+        public Call(Request request, ResponseCallback callback) {
+            this.request = request;
+            this.callback = callback;
+        }
+
+        @Override
+        public void run() {
+            HttpURLConnection conn = null;
+            try {
+                conn = getConnection(request);
+                int responseCode = conn.getResponseCode();
+                if (responseCode == 200) {
+                    InputStream is = conn.getInputStream();
+                    callback.onResponse(new Response(conn.getHeaderFields(), is));
+                    is.close();
+                } else if (responseCode == 301 || responseCode == 302) {
+                    String location = conn.getHeaderField("Location");
+                    call(request, callback);
+                } else {
+                    String errorMsg = null;
+                    InputStream es = conn.getErrorStream();
+                    if (es != null) {
+                        errorMsg = is2String(es, "utf-8");
+                    }
+                    callback.onFailed(new NetworkErrorException("error code: " + responseCode +
+                            (isSpace(errorMsg) ? "" : ("\n" + "error message: " + errorMsg))));
+                }
+            } catch (IOException e) {
+                callback.onFailed(e);
+            } finally {
+                if (conn != null) {
+                    conn.disconnect();
+                }
+            }
+        }
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/Interceptor.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Interceptor.java
new file mode 100644
index 0000000000..c5fb601c17
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Interceptor.java
@@ -0,0 +1,8 @@
+package com.blankj.subutil.util.http;
+
+import java.io.IOException;
+
+public interface Interceptor {
+
+    Response intercept(Chain chain) throws IOException;
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/Request.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Request.java
new file mode 100644
index 0000000000..e409010a7e
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Request.java
@@ -0,0 +1,158 @@
+package com.blankj.subutil.util.http;
+
+
+import androidx.annotation.NonNull;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.nio.charset.IllegalCharsetNameException;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/17
+ * </pre>
+ */
+public final class Request {
+
+    URL                 mURL;
+    Map<String, String> mHeader;
+    Body                mBody;
+
+    public static Request withUrl(@NonNull final String url) {
+        return new Request(url);
+    }
+
+    private Request(final String url) {
+        try {
+            mURL = new URL(url);
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public Request addHeader(@NonNull final String name, @NonNull final String value) {
+        if (mHeader == null) {
+            mHeader = new HashMap<>();
+        }
+        mHeader.put(name, value);
+        return this;
+    }
+
+    public Request addHeader(@NonNull final Map<String, String> header) {
+        if (this.mHeader == null) {
+            this.mHeader = new HashMap<>();
+        }
+        this.mHeader.putAll(header);
+        return this;
+    }
+
+    public Request post(@NonNull final Body body) {
+        this.mBody = body;
+        return this;
+    }
+
+    public static class Body {
+        String              mediaType;
+        BufferedInputStream bis;
+        long                length;
+
+        private Body(final String mediaType, final byte[] body) {
+            this.mediaType = mediaType;
+            bis = new BufferedInputStream(new ByteArrayInputStream(body));
+            length = body.length;
+        }
+
+        private Body(final String mediaType, final InputStream body) {
+            this.mediaType = mediaType;
+            if (body instanceof BufferedInputStream) {
+                bis = (BufferedInputStream) body;
+            } else {
+                bis = new BufferedInputStream(body);
+            }
+            length = -1;
+        }
+
+        private static String getCharsetFromMediaType(String mediaType) {
+            mediaType = mediaType.toLowerCase().replace(" ", "");
+            int index = mediaType.indexOf("charset=");
+            if (index == -1) return "utf-8";
+            int st = index + 8;
+            int end = mediaType.length();
+            if (st >= end) {
+                throw new IllegalArgumentException("MediaType is not correct: \"" + mediaType + "\"");
+            }
+            for (int i = st; i < end; i++) {
+                char c = mediaType.charAt(i);
+                if (c >= 'A' && c <= 'Z') continue;
+                if (c >= 'a' && c <= 'z') continue;
+                if (c >= '0' && c <= '9') continue;
+                if (c == '-' && i != 0) continue;
+                if (c == '+' && i != 0) continue;
+                if (c == ':' && i != 0) continue;
+                if (c == '_' && i != 0) continue;
+                if (c == '.' && i != 0) continue;
+                end = i;
+                break;
+            }
+            String charset = mediaType.substring(st, end);
+            return checkCharset(charset);
+        }
+
+        public static Body create(@NonNull String mediaType, @NonNull byte[] content) {
+            return new Body(mediaType, content);
+        }
+
+        public static Body form(@NonNull final Map<String, String> form) {
+            return form(form, "utf-8");
+        }
+
+        public static Body form(@NonNull final Map<String, String> form, String charset) {
+            String mediaType = "application/x-www-form-urlencoded;charset=" + checkCharset(charset);
+            final StringBuilder sb = new StringBuilder();
+            for (String key : form.keySet()) {
+                if (sb.length() > 0) sb.append("&");
+                sb.append(key).append("=").append(form.get(key));
+            }
+            try {
+                return new Body(mediaType, sb.toString().getBytes(charset));
+            } catch (UnsupportedEncodingException e) {
+                e.printStackTrace();
+                return null;
+            }
+        }
+
+        public static Body json(@NonNull final String json) {
+            return json(json, "utf-8");
+        }
+
+        public static Body json(@NonNull final String json, String charset) {
+            String mediaType = "application/json;charset=" + checkCharset(charset);
+            try {
+                return new Body(mediaType, json.getBytes(charset));
+            } catch (UnsupportedEncodingException e) {
+                e.printStackTrace();
+                return null;
+            }
+        }
+
+//        public static RequestBody file(String mediaType, final File file) {
+//
+//            return new RequestBody(mediaType, );
+//        }
+
+    }
+
+    private static String checkCharset(final String charset) {
+        if (Charset.isSupported(charset)) return charset;
+        throw new IllegalCharsetNameException(charset);
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/Response.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Response.java
new file mode 100644
index 0000000000..be2dbeb1c2
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/Response.java
@@ -0,0 +1,55 @@
+package com.blankj.subutil.util.http;
+
+
+import com.google.gson.Gson;
+
+import java.io.File;
+import java.io.InputStream;
+import java.lang.reflect.Type;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/17
+ * </pre>
+ */
+public class Response {
+    private Map<String, List<String>> mHeaders;
+    private InputStream               mBody;
+
+    public Response(Map<String, List<String>> headers, InputStream body) {
+        mHeaders = headers;
+        mBody = body;
+    }
+
+    public Map<String, List<String>> getHeaders() {
+        return mHeaders;
+    }
+
+    public InputStream getBody() {
+        return mBody;
+    }
+
+    public String getString() {
+        return getString("utf-8");
+    }
+
+    public String getString(final String charset) {
+        return HttpUtils.is2String(mBody, charset);
+    }
+
+    public <T> T getJson(final Type type) {
+        return getJson(type, "utf-8");
+    }
+
+    public <T> T getJson(final Type type, final String charset) {
+        return new Gson().fromJson(getString(charset), type);
+    }
+
+    public boolean downloadFile(final File file) {
+        return HttpUtils.writeFileFromIS(file, mBody);
+    }
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/ResponseCallback.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/ResponseCallback.java
new file mode 100644
index 0000000000..1b85b184a6
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/ResponseCallback.java
@@ -0,0 +1,14 @@
+package com.blankj.subutil.util.http;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/17
+ * </pre>
+ */
+public abstract class ResponseCallback {
+    public abstract void onResponse(Response response);
+
+    public abstract void onFailed(Exception e);
+}
diff --git a/lib/subutil/src/main/java/com/blankj/subutil/util/http/SSLConfig.java b/lib/subutil/src/main/java/com/blankj/subutil/util/http/SSLConfig.java
new file mode 100644
index 0000000000..69fab40981
--- /dev/null
+++ b/lib/subutil/src/main/java/com/blankj/subutil/util/http/SSLConfig.java
@@ -0,0 +1,189 @@
+package com.blankj.subutil.util.http;
+
+import android.annotation.SuppressLint;
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.security.GeneralSecurityException;
+import java.security.SecureRandom;
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLEngine;
+import javax.net.ssl.SSLSession;
+import javax.net.ssl.SSLSocket;
+import javax.net.ssl.SSLSocketFactory;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509ExtendedTrustManager;
+import javax.net.ssl.X509TrustManager;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/20
+ * </pre>
+ */
+public final class SSLConfig {
+
+    SSLSocketFactory mSSLSocketFactory;
+    HostnameVerifier mHostnameVerifier;
+
+    public SSLConfig(@NonNull SSLSocketFactory factory, @NonNull HostnameVerifier verifier) {
+        mSSLSocketFactory = factory;
+        mHostnameVerifier = verifier;
+    }
+
+    public static final HostnameVerifier DEFAULT_VERIFIER           = new HostnameVerifier() {
+        public boolean verify(String hostname, SSLSession session) {
+            return true;
+        }
+    };
+    public static final SSLSocketFactory DEFAULT_SSL_SOCKET_FACTORY = new DefaultSSLSocketFactory();
+
+    public static final SSLConfig DEFAULT_SSL_CONFIG = new SSLConfig(DEFAULT_SSL_SOCKET_FACTORY, DEFAULT_VERIFIER);
+
+    private static class DefaultSSLSocketFactory extends SSLSocketFactory {
+
+        private static final String[]       PROTOCOL_ARRAY;
+        private static final TrustManager[] DEFAULT_TRUST_MANAGERS;
+
+        static {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                PROTOCOL_ARRAY = new String[]{"TLSv1", "TLSv1.1", "TLSv1.2"};
+            } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                PROTOCOL_ARRAY = new String[]{"SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2"};
+            } else {
+                PROTOCOL_ARRAY = new String[]{"SSLv3", "TLSv1"};
+            }
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                DEFAULT_TRUST_MANAGERS = new TrustManager[]{
+                        new X509ExtendedTrustManager() {
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkClientTrusted(X509Certificate[] chain, String authType) {/**/}
+
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkServerTrusted(X509Certificate[] chain, String authType) {/**/}
+
+                            @Override
+                            public X509Certificate[] getAcceptedIssuers() {
+                                return new X509Certificate[0];
+                            }
+
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkClientTrusted(X509Certificate[] chain, String authType, Socket socket) {/**/}
+
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkServerTrusted(X509Certificate[] chain, String authType, Socket socket) {/**/}
+
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkClientTrusted(X509Certificate[] chain, String authType, SSLEngine engine) {/**/}
+
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkServerTrusted(X509Certificate[] chain, String authType, SSLEngine engine) {/**/}
+                        }
+                };
+            } else {
+                DEFAULT_TRUST_MANAGERS = new TrustManager[]{
+                        new X509TrustManager() {
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkClientTrusted(X509Certificate[] chain, String authType) {/**/}
+
+                            @SuppressLint("TrustAllX509TrustManager")
+                            @Override
+                            public void checkServerTrusted(X509Certificate[] chain, String authType) {/**/}
+
+                            @Override
+                            public X509Certificate[] getAcceptedIssuers() {
+                                return new X509Certificate[0];
+                            }
+                        }
+                };
+            }
+
+        }
+
+        private SSLSocketFactory mFactory;
+
+        DefaultSSLSocketFactory() {
+            try {
+                SSLContext sslContext = SSLContext.getInstance("TLS");
+                sslContext.init(null, DEFAULT_TRUST_MANAGERS, new SecureRandom());
+                mFactory = sslContext.getSocketFactory();
+            } catch (GeneralSecurityException e) {
+                throw new AssertionError();
+            }
+        }
+
+        @Override
+        public String[] getDefaultCipherSuites() {
+            return mFactory.getDefaultCipherSuites();
+        }
+
+        @Override
+        public String[] getSupportedCipherSuites() {
+            return mFactory.getSupportedCipherSuites();
+        }
+
+        @Override
+        public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
+            Socket ssl = mFactory.createSocket(s, host, port, autoClose);
+            setSupportProtocolAndCipherSuites(ssl);
+            return ssl;
+        }
+
+        @Override
+        public Socket createSocket(String host, int port) throws IOException {
+            Socket ssl = mFactory.createSocket(host, port);
+            setSupportProtocolAndCipherSuites(ssl);
+            return ssl;
+        }
+
+        @Override
+        public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException {
+            Socket ssl = mFactory.createSocket(host, port, localHost, localPort);
+            setSupportProtocolAndCipherSuites(ssl);
+            return ssl;
+        }
+
+        @Override
+        public Socket createSocket(InetAddress host, int port) throws IOException {
+            Socket ssl = mFactory.createSocket(host, port);
+            setSupportProtocolAndCipherSuites(ssl);
+            return ssl;
+        }
+
+        @Override
+        public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
+            Socket ssl = mFactory.createSocket(address, port, localAddress, localPort);
+            setSupportProtocolAndCipherSuites(ssl);
+            return ssl;
+        }
+
+        @Override
+        public Socket createSocket() throws IOException {
+            Socket ssl = mFactory.createSocket();
+            setSupportProtocolAndCipherSuites(ssl);
+            return ssl;
+        }
+
+        private void setSupportProtocolAndCipherSuites(Socket socket) {
+            if (socket instanceof SSLSocket) {
+                ((SSLSocket) socket).setEnabledProtocols(PROTOCOL_ARRAY);
+            }
+        }
+    }
+}
diff --git a/lib/subutil/src/test/java/com/blankj/subutil/util/BaseTest.java b/lib/subutil/src/test/java/com/blankj/subutil/util/BaseTest.java
new file mode 100644
index 0000000000..d21100695e
--- /dev/null
+++ b/lib/subutil/src/test/java/com/blankj/subutil/util/BaseTest.java
@@ -0,0 +1,34 @@
+package com.blankj.subutil.util;
+
+
+import com.blankj.utilcode.util.Utils;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowLog;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/08/03
+ *     desc  :
+ * </pre>
+ */
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = Config.NONE, shadows = {ShadowLog.class})
+public class BaseTest {
+
+    public BaseTest() {
+        ShadowLog.stream = System.out;
+        Utils.init(RuntimeEnvironment.application);
+    }
+
+    @Test
+    public void test() throws Exception {
+    }
+}
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java b/lib/subutil/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
similarity index 100%
rename from subutil/lib/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
rename to lib/subutil/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/LunarUtilsTest.java b/lib/subutil/src/test/java/com/blankj/subutil/util/LunarUtilsTest.java
similarity index 100%
rename from subutil/lib/src/test/java/com/blankj/subutil/util/LunarUtilsTest.java
rename to lib/subutil/src/test/java/com/blankj/subutil/util/LunarUtilsTest.java
diff --git a/lib/subutil/src/test/java/com/blankj/subutil/util/TemperatureUtilsTest.java b/lib/subutil/src/test/java/com/blankj/subutil/util/TemperatureUtilsTest.java
new file mode 100644
index 0000000000..84ee329851
--- /dev/null
+++ b/lib/subutil/src/test/java/com/blankj/subutil/util/TemperatureUtilsTest.java
@@ -0,0 +1,54 @@
+package com.blankj.subutil.util;
+
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/03/22
+ *     desc  : TemperatureUtils 单元测试
+ * </pre>
+ */
+@RunWith(JUnit4.class)
+public class TemperatureUtilsTest {
+
+    private float delta = 1e-15f;
+
+    @Test
+    public void cToF() {
+        Assert.assertEquals(32f, TemperatureUtils.cToF(0f), delta);
+    }
+
+    @Test
+    public void cToK() {
+        Assert.assertEquals(273.15f, TemperatureUtils.cToK(0f), delta);
+    }
+
+
+    @Test
+    public void fToC() {
+        Assert.assertEquals(-17.777779f, TemperatureUtils.fToC(0f), delta);
+    }
+
+    @Test
+    public void fToK() {
+        Assert.assertEquals(255.3722222222f, TemperatureUtils.fToK(0f), delta);
+    }
+
+
+    @Test
+    public void kToC() {
+        Assert.assertEquals(-273.15f, TemperatureUtils.kToC(0f), delta);
+    }
+
+    @Test
+    public void kToF() {
+        Assert.assertEquals(-459.67f, TemperatureUtils.kToF(0f), delta);
+    }
+
+}
diff --git a/lib/subutil/src/test/java/com/blankj/subutil/util/TestConfig.java b/lib/subutil/src/test/java/com/blankj/subutil/util/TestConfig.java
new file mode 100644
index 0000000000..143a00031f
--- /dev/null
+++ b/lib/subutil/src/test/java/com/blankj/subutil/util/TestConfig.java
@@ -0,0 +1,29 @@
+package com.blankj.subutil.util;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/09/10
+ *     desc  : config of test
+ * </pre>
+ */
+public class TestConfig {
+
+    static final String FILE_SEP = System.getProperty("file.separator");
+
+    static final String LINE_SEP = System.getProperty("line.separator");
+
+    static final String TEST_PATH;
+
+    static {
+        String projectPath = System.getProperty("user.dir");
+        if (!projectPath.contains("subutil")) {
+            projectPath += FILE_SEP + "subutil";
+        }
+        TEST_PATH = projectPath + FILE_SEP + "src" + FILE_SEP + "test" + FILE_SEP + "res";
+    }
+
+
+    public static final String PATH_HTTP = TEST_PATH + "http" + FILE_SEP;
+}
diff --git a/lib/subutil/src/test/java/com/blankj/subutil/util/http/HttpUtilsTest.java b/lib/subutil/src/test/java/com/blankj/subutil/util/http/HttpUtilsTest.java
new file mode 100644
index 0000000000..3dc197be2e
--- /dev/null
+++ b/lib/subutil/src/test/java/com/blankj/subutil/util/http/HttpUtilsTest.java
@@ -0,0 +1,79 @@
+package com.blankj.subutil.util.http;
+
+import com.blankj.subutil.util.BaseTest;
+import com.blankj.subutil.util.TestConfig;
+import com.blankj.utilcode.util.FileIOUtils;
+import com.blankj.utilcode.util.GsonUtils;
+import com.blankj.utilcode.util.TimeUtils;
+
+import org.apache.tools.ant.util.FileUtils;
+import org.junit.Test;
+
+import java.io.File;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/10
+ *     desc  :
+ * </pre>
+ */
+public class HttpUtilsTest extends BaseTest {
+
+    private static final String BASE_URL = "http://127.0.0.1:8081";
+
+//    @Test
+//    public void getString() {
+//        HttpUtils.call(Request.withUrl(BASE_URL + "/listUsers"), new ResponseCallback() {
+//            @Override
+//            public void onResponse(Response response) {
+//                System.out.println(response.getHeaders());
+//                System.out.println(response.getString());
+//            }
+//
+//            @Override
+//            public void onFailed(Exception e) {
+//                e.printStackTrace();
+//            }
+//        });
+//    }
+//
+//    @Test
+//    public void getJson() {
+//        HttpUtils.call(Request.withUrl(BASE_URL + "/listUsers"), new ResponseCallback() {
+//            @Override
+//            public void onResponse(Response response) {
+//                System.out.println(response.getHeaders());
+//                List<UserBean> users = response.getJson(GsonUtils.getListType(UserBean.class));
+//                System.out.println(GsonUtils.toJson(users));
+//            }
+//
+//            @Override
+//            public void onFailed(Exception e) {
+//                e.printStackTrace();
+//            }
+//        });
+//    }
+//
+//    @Test
+//    public void downloadFile() {
+//        HttpUtils.call(Request.withUrl(BASE_URL + "/listUsers"), new ResponseCallback() {
+//            @Override
+//            public void onResponse(Response response) {
+//                System.out.println(response.getHeaders());
+//                File file = new File(TestConfig.PATH_HTTP + TimeUtils.getNowMills());
+//                response.downloadFile(file);
+//                System.out.println(FileIOUtils.readFile2String(file));
+//                FileUtils.delete(file);
+//            }
+//
+//            @Override
+//            public void onFailed(Exception e) {
+//                e.printStackTrace();
+//            }
+//        });
+//    }
+
+}
\ No newline at end of file
diff --git a/lib/subutil/src/test/java/com/blankj/subutil/util/http/UserBean.java b/lib/subutil/src/test/java/com/blankj/subutil/util/http/UserBean.java
new file mode 100644
index 0000000000..4d1346b177
--- /dev/null
+++ b/lib/subutil/src/test/java/com/blankj/subutil/util/http/UserBean.java
@@ -0,0 +1,49 @@
+package com.blankj.subutil.util.http;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/17
+ *     desc  :
+ * </pre>
+ */
+class UserBean {
+
+    private String name;
+    private String password;
+    private String profession;
+    private int    id;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getProfession() {
+        return profession;
+    }
+
+    public void setProfession(String profession) {
+        this.profession = profession;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+}
diff --git a/lib/utilcode/.gitignore b/lib/utilcode/.gitignore
new file mode 100644
index 0000000000..42afabfd2a
--- /dev/null
+++ b/lib/utilcode/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/lib/utilcode/README-CN.md b/lib/utilcode/README-CN.md
new file mode 100644
index 0000000000..6610b3be99
--- /dev/null
+++ b/lib/utilcode/README-CN.md
@@ -0,0 +1,1481 @@
+## Download
+
+Gradle:
+```groovy
+// if u use AndroidX, use the following
+implementation 'com.blankj:utilcodex:1.31.1'
+
+// Not in maintenance
+implementation 'com.blankj:utilcode:1.30.7'
+```
+
+
+## APIs
+
+* ### Activity 相关 -> [ActivityUtils.java][activity.java] -> [Demo][activity.demo]
+```
+addActivityLifecycleCallbacks   : 增加 Activity 生命周期监听
+removeActivityLifecycleCallbacks: 移除 Activity 生命周期监听
+getAliveActivityByContext       : 根据上下文获取存活的 Activity
+getActivityByContext            : 根据上下文获取 Activity
+isActivityExists                : 判断 Activity 是否存在
+startActivity                   : 启动 Activity
+startActivityForResult          : 启动 Activity 为返回结果
+startActivities                 : 启动多个 Activity
+startHomeActivity               : 回到桌面
+getActivityList                 : 获取 Activity 栈链表
+getLauncherActivity             : 获取启动项 Activity
+getMainActivities               : 获取主的 Activity 们
+getTopActivity                  : 获取栈顶 Activity
+isActivityAlive                 : 判断 Activity 是否存活
+isActivityExistsInStack         : 判断 Activity 是否存在栈中
+finishActivity                  : 结束 Activity
+finishToActivity                : 结束到指定 Activity
+finishOtherActivities           : 结束所有其他类型的 Activity
+finishAllActivities             : 结束所有 Activity
+finishAllActivitiesExceptNewest : 结束除最新之外的所有 Activity
+```
+
+* ### AdaptScreen 相关 -> [AdaptScreenUtils.java][adaptScreen.java] -> [Demo][adaptScreen.demo]
+```
+adaptWidth : 适配宽度
+adaptHeight: 适配高度
+closeAdapt : 关闭适配（pt 等同于 dp）
+pt2Px      : pt 转 px
+px2Pt      : px 转 pt
+```
+
+* ### Api 相关 -> [ApiUtils.java][api.java] -> [README][api.readme]
+```
+getApi: 获取 api 的实例
+```
+
+* ### App 相关 -> [AppUtils.java][app.java] -> [Demo][app.demo]
+```
+registerAppStatusChangedListener  : 注册 App 前后台切换监听器
+unregisterAppStatusChangedListener: 注销 App 前后台切换监听器
+installApp                        : 安装 App（支持 8.0）
+uninstallApp                      : 卸载 App
+isAppInstalled                    : 判断 App 是否安装
+isAppRoot                         : 判断 App 是否有 root 权限
+isAppDebug                        : 判断 App 是否是 Debug 版本
+isAppSystem                       : 判断 App 是否是系统应用
+isAppForeground                   : 判断 App 是否处于前台
+isAppRunning                      : 判断 App 是否运行
+launchApp                         : 打开 App
+relaunchApp                       : 重启 App
+launchAppDetailsSettings          : 打开 App 具体设置
+exitApp                           : 关闭应用
+getAppIcon                        : 获取 App 图标
+getAppPackageName                 : 获取 App 包名
+getAppName                        : 获取 App 名称
+getAppPath                        : 获取 App 路径
+getAppVersionName                 : 获取 App 版本号
+getAppVersionCode                 : 获取 App 版本码
+getAppMinSdkVersion               : 获取 App 支持最低系统版本号
+getAppTargetSdkVersion            : 获取 App 目标系统版本号
+getAppSignatures                  : 获取 App 签名
+getAppSignaturesSHA1              : 获取应用签名的的 SHA1 值
+getAppSignaturesSHA256            : 获取应用签名的的 SHA256 值
+getAppSignaturesMD5               : 获取应用签名的的 MD5 值
+getAppInfo                        : 获取 App 信息
+getAppsInfo                       : 获取所有已安装 App 信息
+getApkInfo                        : 获取 Apk 信息
+isFirstTimeInstalled              : 判断应用是否首次安装
+```
+
+* ### 数组相关 -> [ArrayUtils.java][array.java] -> [Test][array.test]
+```
+newArray          : 新建数组
+newLongArray      : 新建长整型数组
+newIntArray       : 新建整型数组
+newShortArray     : 新建 short 数组
+newCharArray      : 新建字符数组
+newByteArray      : 新建字节数组
+newDoubleArray    : 新建双精度数组
+newFloatArray     : 新建浮点数数组
+newBooleanArray   : 新建 boolean 数组
+isEmpty           : 判断数组是否为空
+getLength         : 获取数组长度
+isSameLength      : 判断两数组长度是否相等
+get               : 获取数组的索引值
+set               : 设置数组的索引值
+equals            : 判断数组是否相等
+reverse           : 逆序数组
+copy              : 拷贝数组
+subArray          : 截取数组
+add               : 增加数组
+remove            : 移除指定的索引
+removeElement     : 移除指定的元素
+indexOf           : 查找第一个元素的索引
+lastIndexOf       : 查找最后一个元素的索引
+contains          : 判断是否包含该元素
+toPrimitive       : 装箱数组转基本类型数组
+toObject          : 基本类型数组转装箱数组
+asList            : 转为链表
+asUnmodifiableList: 转为不可变链表
+asArrayList       : 转为数组链表
+asLinkedList      : 转为双向链表
+sort              : 排序
+forAllDo          : 对所有元素做操作
+toString          : 数组转为字符串
+```
+
+* ### 栏相关 -> [BarUtils.java][bar.java] -> [Demo][bar.demo]
+```
+getStatusBarHeight                   : 获取状态栏高度（px）
+setStatusBarVisibility               : 设置状态栏是否可见
+isStatusBarVisible                   : 判断状态栏是否可见
+setStatusBarLightMode                : 设置状态栏是否为浅色模式
+isStatusBarLightMode                 : 判断状态栏是否为浅色模式
+addMarginTopEqualStatusBarHeight     : 为 view 增加 MarginTop 为状态栏高度
+subtractMarginTopEqualStatusBarHeight: 为 view 减少 MarginTop 为状态栏高度
+setStatusBarColor                    : 设置状态栏颜色
+setStatusBarColor4Drawer             : 为 DrawerLayout 设置状态栏颜色
+transparentStatusBar                 : 透明状态栏
+getActionBarHeight                   : 获取 ActionBar 高度
+setNotificationBarVisibility         : 设置通知栏是否可见
+getNavBarHeight                      : 获取导航栏高度
+setNavBarVisibility                  : 设置导航栏是否可见
+isNavBarVisible                      : 判断导航栏是否可见
+setNavBarColor                       : 设置导航栏颜色
+getNavBarColor                       : 获取导航栏颜色
+isSupportNavBar                      : 判断是否支持导航栏
+setNavBarLightMode                   : 设置导航栏是否为浅色模式
+isNavBarLightMode                    : 判断导航栏是否为浅色模式
+transparentNavBar                    : 透明导航栏
+```
+
+* ### 亮度相关 -> [BrightnessUtils.java][brightness.java] -> [Demo][brightness.demo]
+```
+isAutoBrightnessEnabled : 判断是否开启自动调节亮度
+setAutoBrightnessEnabled: 设置是否开启自动调节亮度
+getBrightness           : 获取屏幕亮度
+setBrightness           : 设置屏幕亮度
+setWindowBrightness     : 设置窗口亮度
+getWindowBrightness     : 获取窗口亮度
+```
+
+* ### Bus 相关 -> [BusUtils.java][bus.java] -> [README][bus.readme]
+```
+register    : 注册
+unregister  : 注销
+post        : 发送
+postSticky  : 发送粘性
+removeSticky: 移除粘性
+toString_   : 查看插入的信息
+```
+
+* ### 磁盘缓存相关 -> [CacheDiskStaticUtils.java][cacheDiskStatic.java] -> [Test][cacheDiskStatic.test]
+```
+setDefaultCacheDiskUtils: 设置默认磁盘缓存实例
+put                     : 缓存中写入数据
+getBytes                : 缓存中读取字节数组
+getString               : 缓存中读取 String
+getJSONObject           : 缓存中读取 JSONObject
+getJSONArray            : 缓存中读取 JSONArray
+getBitmap               : 缓存中读取 Bitmap
+getDrawable             : 缓存中读取 Drawable
+getParcelable           : 缓存中读取 Parcelable
+getSerializable         : 缓存中读取 Serializable
+getCacheSize            : 获取缓存大小
+getCacheCount           : 获取缓存个数
+remove                  : 根据键值移除缓存
+clear                   : 清除所有缓存
+```
+
+* ### 磁盘缓存相关 -> [CacheDiskUtils.java][cacheDisk.java] -> [Test][cacheDisk.test]
+```
+getInstance             : 获取缓存实例
+Instance.put            : 缓存中写入数据
+Instance.getBytes       : 缓存中读取字节数组
+Instance.getString      : 缓存中读取 String
+Instance.getJSONObject  : 缓存中读取 JSONObject
+Instance.getJSONArray   : 缓存中读取 JSONArray
+Instance.getBitmap      : 缓存中读取 Bitmap
+Instance.getDrawable    : 缓存中读取 Drawable
+Instance.getParcelable  : 缓存中读取 Parcelable
+Instance.getSerializable: 缓存中读取 Serializable
+Instance.getCacheSize   : 获取缓存大小
+Instance.getCacheCount  : 获取缓存个数
+Instance.remove         : 根据键值移除缓存
+Instance.clear          : 清除所有缓存
+```
+
+* ### 二级缓存相关 -> [CacheDoubleStaticUtils.java][cacheDoubleStatic.java] -> [Test][cacheDoubleStatic.test]
+```
+setDefaultCacheDoubleUtils: 设置默认二级缓存实例
+put                       : 缓存中写入数据
+getBytes                  : 缓存中读取字节数组
+getString                 : 缓存中读取 String
+getJSONObject             : 缓存中读取 JSONObject
+getJSONArray              : 缓存中读取 JSONArray
+getBitmap                 : 缓存中读取 Bitmap
+getDrawable               : 缓存中读取 Drawable
+getParcelable             : 缓存中读取 Parcelable
+getSerializable           : 缓存中读取 Serializable
+getCacheDiskSize          : 获取磁盘缓存大小
+getCacheDiskCount         : 获取磁盘缓存个数
+getCacheMemoryCount       : 获取内存缓存个数
+remove                    : 根据键值移除缓存
+clear                     : 清除所有缓存
+```
+
+* ### 二级缓存相关 -> [CacheDoubleUtils.java][cacheDouble.java] -> [Test][cacheDouble.test]
+```
+getInstance                 : 获取缓存实例
+Instance.put                : 缓存中写入数据
+Instance.getBytes           : 缓存中读取字节数组
+Instance.getString          : 缓存中读取 String
+Instance.getJSONObject      : 缓存中读取 JSONObject
+Instance.getJSONArray       : 缓存中读取 JSONArray
+Instance.getBitmap          : 缓存中读取 Bitmap
+Instance.getDrawable        : 缓存中读取 Drawable
+Instance.getParcelable      : 缓存中读取 Parcelable
+Instance.getSerializable    : 缓存中读取 Serializable
+Instance.getCacheDiskSize   : 获取磁盘缓存大小
+Instance.getCacheDiskCount  : 获取磁盘缓存个数
+Instance.getCacheMemoryCount: 获取内存缓存个数
+Instance.remove             : 根据键值移除缓存
+Instance.clear              : 清除所有缓存
+```
+
+* ### 内存缓存相关 -> [CacheMemoryStaticUtils.java][cacheMemoryStatic.java] -> [Test][cacheMemoryStatic.test]
+```
+setDefaultCacheMemoryUtils: 设置默认内存缓存实例
+put                       : 缓存中写入数据
+get                       : 缓存中读取字节数组
+getCacheCount             : 获取缓存个数
+remove                    : 根据键值移除缓存
+clear                     : 清除所有缓存
+```
+
+* ### 内存缓存相关 -> [CacheMemoryUtils.java][cacheMemory.java] -> [Test][cacheMemory.test]
+```
+getInstance           : 获取缓存实例
+Instance.put          : 缓存中写入数据
+Instance.get          : 缓存中读取字节数组
+Instance.getCacheCount: 获取缓存个数
+Instance.remove       : 根据键值移除缓存
+Instance.clear        : 清除所有缓存
+```
+
+* ### 清除相关 -> [CleanUtils.java][clean.java] -> [Demo][clean.demo]
+```
+cleanInternalCache   : 清除内部缓存
+cleanInternalFiles   : 清除内部文件
+cleanInternalDbs     : 清除内部数据库
+cleanInternalDbByName: 根据名称清除数据库
+cleanInternalSp      : 清除内部 SP
+cleanExternalCache   : 清除外部缓存
+cleanCustomDir       : 清除自定义目录下的文件
+```
+
+* ### 点击相关 -> [ClickUtils.java][click.java] -> [Demo][click.demo]
+```
+applyPressedViewScale               : 应用点击后对视图缩放
+applyPressedViewAlpha               : 应用点击后对视图改变透明度
+applyPressedBgAlpha                 : 应用点击后对背景改变透明度
+applyPressedBgDark                  : 应用点击后对背景加深
+applySingleDebouncing               : 对单视图应用防抖点击
+applyGlobalDebouncing               : 对所有设置 GlobalDebouncing 的视图应用防抖点击
+expandClickArea                     : 扩大点击区域
+back2HomeFriendly                   : 友好地返回桌面
+ClickUtils#OnDebouncingClickListener: 防抖点击监听器
+ClickUtils#OnMultiClickListener     : 连续点击监听器
+```
+
+* ### 剪贴板相关 -> [ClipboardUtils.java][clipboard.java] -> [Demo][clipboard.demo]
+```
+copyText             : 复制文本到剪贴板
+getText              : 获取剪贴板的文本
+copyUri              : 复制 uri 到剪贴板
+getUri               : 获取剪贴板的 uri
+copyIntent           : 复制意图到剪贴板
+getIntent            : 获取剪贴板的意图
+addChangedListener   : 增加剪贴板监听器
+removeChangedListener: 移除剪贴板监听器
+```
+
+* ### 克隆相关 -> [CloneUtils.java][clone.java] -> [Test][clone.test]
+```
+deepClone: 深度克隆
+```
+
+* ### 关闭相关 -> [CloseUtils.java][close.java]
+```
+closeIO       : 关闭 IO
+closeIOQuietly: 安静关闭 IO
+```
+
+* ### 集合相关 -> [CollectionUtils.java][collection.java] -> [Test][collection.test]
+```
+newUnmodifiableList[NotNull]: 新建只读[非空]链表
+newArrayList[NotNull]       : 新建数组型[非空]链表
+newLinkedList[NotNull]      : 新建指针型[非空]链表
+newHashSet[NotNull]         : 新建哈希[非空]集合
+newTreeSet[NotNull]         : 新建有序[非空]集合
+newSynchronizedCollection   : 新建同步集合
+newUnmodifiableCollection   : 新建只读集合
+union                       : 获取并集
+intersection                : 获取交集
+disjunction                 : 获取并集减交集
+subtract                    : 获取差集
+containsAny                 : 判断是否有交集
+getCardinalityMap           : 获取集合中所有元素的基数
+isSubCollection             : 是否子集
+isProperSubCollection       : 是否真子集
+isEqualCollection           : 判断集合是否相等
+cardinality                 : 获取集合中元素的基数
+find                        : 查找第一个符合条件的元素
+forAllDo                    : 对所有元素做操作
+filter                      : 删除原集合中不符合条件的元素
+select                      : 查找出所有符合条件的元素并返回新集合
+selectRejected              : 查找出所有不符合条件的元素并返回新集合
+transform                   : 对原集合进行转变
+collect                     : 转变为新的集合
+countMatches                : 查找到匹配的元素个数
+exists                      : 判断集合是否存在符合条件的元素
+addIgnoreNull               : 增加元素如果不为空
+addAll                      : 增加多个元素
+get                         : 获取集合元素
+size                        : 获取集合个数
+sizeIsEmpty                 : 判断个数是否为零
+isEmpty                     : 判断是否为空
+isNotEmpty                  : 判断是否非空
+retainAll                   : 保留元素
+removeAll                   : 删除下来
+toString                    : 集合转为字符串
+```
+
+* ### 颜色相关 -> [ColorUtils.java][color.java]
+```
+getColor         : 获取颜色
+setAlphaComponent: 设置颜色透明度值
+setRedComponent  : 设置颜色红色值
+setGreenComponent: 设置颜色绿色值
+setBlueComponent : 设置颜色蓝色值
+string2Int       : 颜色串转颜色值
+int2RgbString    : 颜色值转 RGB 串
+int2ArgbString   : 颜色值转 ARGB 串
+getRandomColor   : 获取随机色
+isLightColor     : 判断是否亮色
+```
+
+* ### 转换相关 -> [ConvertUtils.java][convert.java] -> [Test][convert.test]
+```
+int2HexString, hexString2Int            : int 与 hexString 互转
+bytes2Bits, bits2Bytes                  : bytes 与 bits 互转
+bytes2Chars, chars2Bytes                : bytes 与 chars 互转
+bytes2HexString, hexString2Bytes        : bytes 与 hexString 互转
+bytes2String, string2Bytes              : bytes 与 string 互转
+bytes2JSONObject, jsonObject2Bytes      : bytes 与 JSONObject 互转
+bytes2JSONArray, jsonArray2Bytes        : bytes 与 JSONArray 互转
+bytes2Parcelable, parcelable2Bytes      : bytes 与 Parcelable 互转
+bytes2Object, serializable2Bytes        : bytes 与 Object 互转
+bytes2Bitmap, bitmap2Bytes              : bytes 与 Bitmap 互转
+memorySize2Byte, byte2MemorySize        : 以 unit 为单位的内存大小与字节数互转
+byte2FitMemorySize                      : 字节数转合适内存大小
+timeSpan2Millis, millis2TimeSpan        : 以 unit 为单位的时间长度与毫秒时间戳互转
+millis2FitTimeSpan                      : 毫秒时间戳转合适时间长度
+input2OutputStream, output2InputStream  : inputStream 与 outputStream 互转
+inputStream2Bytes, bytes2InputStream    : inputStream 与 bytes 互转
+outputStream2Bytes, bytes2OutputStream  : outputStream 与 bytes 互转
+inputStream2String, string2InputStream  : inputStream 与 string 按编码互转
+outputStream2String, string2OutputStream: outputStream 与 string 按编码互转
+inputStream2Lines                       : inputStream 转 文本行
+drawable2Bitmap, bitmap2Drawable        : drawable 与 bitmap 互转
+drawable2Bytes, bytes2Drawable          : drawable 与 bytes 互转
+view2Bitmap                             : view 转 Bitmap
+dp2px, px2dp                            : dp 与 px 互转
+sp2px, px2sp                            : sp 与 px 互转
+```
+
+* ### 崩溃相关 -> [CrashUtils.java][crash.java]
+```
+init                  : 初始化
+CrashInfo.addExtraHead: 增加额外头部
+CrashInfo.getThrowable: 获取崩溃异常
+CrashInfo.toString    : 获取崩溃信息
+```
+
+* ### 防抖相关 -> [DebouncingUtils.java][debouncing.java]
+```
+isValid: 是否有效
+```
+
+* ### 设备相关 -> [DeviceUtils.java][device.java] -> [Demo][device.demo]
+```
+isDeviceRooted              : 判断设备是否 rooted
+isAdbEnabled                : 判断设备 ADB 是否可用
+getSDKVersionName           : 获取设备系统版本号
+getSDKVersionCode           : 获取设备系统版本码
+getAndroidID                : 获取设备 AndroidID
+getMacAddress               : 获取设备 MAC 地址
+getManufacturer             : 获取设备厂商
+getModel                    : 获取设备型号
+getABIs                     : 获取设备 ABIs
+isTablet                    : 判断是否是平板
+isEmulator                  : 判断是否是模拟器
+isDevelopmentSettingsEnabled: 开发者选项是否打开
+getUniqueDeviceId           : 获取唯一设备 ID
+isSameDevice                : 判断是否同一设备
+```
+
+* ### 闪光灯相关 -> [FlashlightUtils.java][flashlight.java] -> [Demo][flashlight.demo]
+```
+isFlashlightEnable : 判断设备是否支持闪光灯
+isFlashlightOn     : 判断闪光灯是否打开
+setFlashlightStatus: 设置闪光灯状态
+destroy            : 销毁
+```
+
+* ### 编码解码相关 -> [EncodeUtils.java][encode.java] -> [Test][encode.test]
+```
+urlEncode          : URL 编码
+urlDecode          : URL 解码
+base64Encode       : Base64 编码
+base64Encode2String: Base64 编码
+base64Decode       : Base64 解码
+htmlEncode         : Html 编码
+htmlDecode         : Html 解码
+binaryEncode       : 二进制编码
+binaryDecode       : 二进制解码
+```
+
+* ### 加密解密相关 -> [EncryptUtils.java][encrypt.java] -> [Test][encrypt.test]
+```
+encryptMD2, encryptMD2ToString                        : MD2 加密
+encryptMD5, encryptMD5ToString                        : MD5 加密
+encryptMD5File, encryptMD5File2String                 : MD5 加密文件
+encryptSHA1, encryptSHA1ToString                      : SHA1 加密
+encryptSHA224, encryptSHA224ToString                  : SHA224 加密
+encryptSHA256, encryptSHA256ToString                  : SHA256 加密
+encryptSHA384, encryptSHA384ToString                  : SHA384 加密
+encryptSHA512, encryptSHA512ToString                  : SHA512 加密
+encryptHmacMD5, encryptHmacMD5ToString                : HmacMD5 加密
+encryptHmacSHA1, encryptHmacSHA1ToString              : HmacSHA1 加密
+encryptHmacSHA224, encryptHmacSHA224ToString          : HmacSHA224 加密
+encryptHmacSHA256, encryptHmacSHA256ToString          : HmacSHA256 加密
+encryptHmacSHA384, encryptHmacSHA384ToString          : HmacSHA384 加密
+encryptHmacSHA512, encryptHmacSHA512ToString          : HmacSHA512 加密
+encryptDES, encryptDES2HexString, encryptDES2Base64   : DES 加密
+decryptDES, decryptHexStringDES, decryptBase64DES     : DES 解密
+encrypt3DES, encrypt3DES2HexString, encrypt3DES2Base64: 3DES 加密
+decrypt3DES, decryptHexString3DES, decryptBase64_3DES : 3DES 解密
+encryptAES, encryptAES2HexString, encryptAES2Base64   : AES 加密
+decryptAES, decryptHexStringAES, decryptBase64AES     : AES 解密
+encryptRSA, encryptRSA2HexString, encryptRSA2Base64   : RSA 加密
+decryptRSA, decryptHexStringRSA, decryptBase64RSA     : RSA 解密
+rc4                                                   : rc4 加解密
+```
+
+* ### 文件相关 -> [FileIOUtils.java][fileIo.java] -> [Test][fileIo.test]
+```
+writeFileFromIS            : 将输入流写入文件
+writeFileFromBytesByStream : 将字节数组写入文件
+writeFileFromBytesByChannel: 将字节数组写入文件
+writeFileFromBytesByMap    : 将字节数组写入文件
+writeFileFromString        : 将字符串写入文件
+readFile2List              : 读取文件到字符串链表中
+readFile2String            : 读取文件到字符串中
+readFile2BytesByStream     : 读取文件到字节数组中
+readFile2BytesByChannel    : 读取文件到字节数组中
+readFile2BytesByMap        : 读取文件到字节数组中
+setBufferSize              : 设置缓冲区尺寸
+```
+
+* ### 文件相关 -> [FileUtils.java][file.java] -> [Test][file.test]
+```
+getFileByPath             : 根据文件路径获取文件
+isFileExists              : 判断文件是否存在
+rename                    : 重命名文件
+isDir                     : 判断是否是目录
+isFile                    : 判断是否是文件
+createOrExistsDir         : 判断目录是否存在，不存在则判断是否创建成功
+createOrExistsFile        : 判断文件是否存在，不存在则判断是否创建成功
+createFileByDeleteOldFile : 判断文件是否存在，存在则在创建之前删除
+copy                      : 复制文件或目录
+move                      : 移动文件或目录
+delete                    : 删除文件或目录
+deleteAllInDir            : 删除目录下所有内容
+deleteFilesInDir          : 删除目录下所有文件
+deleteFilesInDirWithFilter: 删除目录下所有过滤的文件
+listFilesInDir            : 获取目录下所有文件
+listFilesInDirWithFilter  : 获取目录下所有过滤的文件
+getFileLastModified       : 获取文件最后修改的毫秒时间戳
+getFileCharsetSimple      : 简单获取文件编码格式
+getFileLines              : 获取文件行数
+getSize                   : 获取文件或目录大小
+getLength                 : 获取文件或目录长度
+getFileMD5                : 获取文件的 MD5 校验码
+getFileMD5ToString        : 获取文件的 MD5 校验码
+getDirName                : 根据全路径获取最长目录
+getFileName               : 根据全路径获取文件名
+getFileNameNoExtension    : 根据全路径获取文件名不带拓展名
+getFileExtension          : 根据全路径获取文件拓展名
+notifySystemToScan        : 通知系统扫描文件
+getFsTotalSize            : 获取文件系统总大小
+getFsAvailableSize        : 获取文件系统可用大小
+```
+
+* ### Fragment 相关 -> [FragmentUtils.java][fragment.java] -> [Demo][fragment.demo]
+```
+add                   : 增加 fragment
+show                  : 显示 fragment
+hide                  : 隐藏 fragment
+showHide              : 先显示后隐藏 fragment
+replace               : 替换 fragment
+pop                   : 出栈 fragment
+popTo                 : 出栈到指定 fragment
+popAll                : 出栈所有 fragment
+remove                : 移除 fragment
+removeTo              : 移除到指定 fragment
+removeAll             : 移除所有 fragment
+getTop                : 获取顶部 fragment
+getTopInStack         : 获取栈中顶部 fragment
+getTopShow            : 获取顶部可见 fragment
+getTopShowInStack     : 获取栈中顶部可见 fragment
+getFragments          : 获取同级别的 fragment
+getFragmentsInStack   : 获取同级别栈中的 fragment
+getAllFragments       : 获取所有 fragment
+getAllFragmentsInStack: 获取栈中所有 fragment
+findFragment          : 查找 fragment
+dispatchBackPress     : 处理 fragment 回退键
+setBackgroundColor    : 设置背景色
+setBackgroundResource : 设置背景资源
+setBackground         : 设置背景
+```
+
+* ### Gson 相关 -> [GsonUtils.java][gson.java] -> [Test][gson.test]
+```
+setGsonDelegate: 设置默认的 Gson 代理对象
+setGson        : 设置 Gson 对象
+getGson        : 获取 Gson 对象
+toJson         : 对象转 Json 串
+fromJson       : Json 串转对象
+getListType    : 获取链表类型
+getSetType     : 获取集合类型
+getMapType     : 获取字典类型
+getArrayType   : 获取数组类型
+getType        : 获取类型
+```
+
+* ### 图片相关 -> [ImageUtils.java][image.java] -> [Demo][image.demo]
+```
+bitmap2Bytes, bytes2Bitmap      : bitmap 与 bytes 互转
+drawable2Bitmap, bitmap2Drawable: drawable 与 bitmap 互转
+drawable2Bytes, bytes2Drawable  : drawable 与 bytes 互转
+view2Bitmap                     : view 转 bitmap
+getBitmap                       : 获取 bitmap
+scale                           : 缩放图片
+clip                            : 裁剪图片
+skew                            : 倾斜图片
+rotate                          : 旋转图片
+getRotateDegree                 : 获取图片旋转角度
+toRound                         : 转为圆形图片
+toRoundCorner                   : 转为圆角图片
+addCornerBorder                 : 添加圆角边框
+addCircleBorder                 : 添加圆形边框
+addReflection                   : 添加倒影
+addTextWatermark                : 添加文字水印
+addImageWatermark               : 添加图片水印
+toAlpha                         : 转为 alpha 位图
+toGray                          : 转为灰度图片
+fastBlur                        : 快速模糊
+renderScriptBlur                : renderScript 模糊图片
+stackBlur                       : stack 模糊图片
+save                            : 保存图片
+save2Album                      : 保存图片到相册
+isImage                         : 根据文件名判断文件是否为图片
+getImageType                    : 获取图片类型
+compressByScale                 : 按缩放压缩
+compressByQuality               : 按质量压缩
+compressBySampleSize            : 按采样大小压缩
+getSize                         : 获取图片尺寸
+```
+
+* ### 意图相关 -> [IntentUtils.java][intent.java]
+```
+isIntentAvailable                : 判断意图是否可用
+getInstallAppIntent              : 获取安装 App（支持 6.0）的意图
+getUninstallAppIntent            : 获取卸载 App 的意图
+getLaunchAppIntent               : 获取打开 App 的意图
+getLaunchAppDetailsSettingsIntent: 获取 App 具体设置的意图
+getShareTextIntent               : 获取分享文本的意图
+getShareImageIntent              : 获取分享图片的意图
+getShareTextImageIntent          : 获取分享图文的意图
+getComponentIntent               : 获取其他应用组件的意图
+getShutdownIntent                : 获取关机的意图
+getCaptureIntent                 : 获取拍照的意图
+```
+
+* ### 键盘相关 -> [KeyboardUtils.java][keyboard.java] -> [Demo][keyboard.demo]
+```
+showSoftInput                     : 显示软键盘
+hideSoftInput                     : 隐藏软键盘
+toggleSoftInput                   : 切换键盘显示与否状态
+isSoftInputVisible                : 判断软键盘是否可见
+registerSoftInputChangedListener  : 注册软键盘改变监听器
+unregisterSoftInputChangedListener: 注销软键盘改变监听器
+fixAndroidBug5497                 : 修复安卓 5497 BUG
+fixSoftInputLeaks                 : 修复软键盘内存泄漏
+clickBlankArea2HideSoftInput      : 点击屏幕空白区域隐藏软键盘
+```
+
+* ### 语言相关 -> [LanguageUtils.java][language.java] -> [Demo][language.demo]
+```
+applySystemLanguage     : 设置系统语言
+applyLanguage           : 设置语言
+isAppliedLanguage       : 是否设置了语言
+getAppliedLanguage      : 获取设置的语言
+getContextLanguage      : 获取上下文的语言
+getAppContextLanguage   : 获取应用上下文的语言
+getSystemLanguage       : 获取系统的语言
+updateAppContextLanguage: 更新应用上下文语言
+attachBaseContext       : 如果设置语言无效则在 Activity#attachBaseContext 调用它
+```
+
+* ### 日志相关 -> [LogUtils.java][log.java] -> [Demo][log.demo]
+```
+getConfig                        : 获取 log 配置
+Config.setLogSwitch              : 设置 log 总开关
+Config.setConsoleSwitch          : 设置 log 控制台开关
+Config.setGlobalTag              : 设置 log 全局 tag
+Config.setLogHeadSwitch          : 设置 log 头部信息开关
+Config.setLog2FileSwitch         : 设置 log 文件开关
+Config.setDir                    : 设置 log 文件存储目录
+Config.setFilePrefix             : 设置 log 文件前缀
+Config.setBorderSwitch           : 设置 log 边框开关
+Config.setSingleTagSwitch        : 设置 log 单一 tag 开关（为美化 AS 3.1 的 Logcat）
+Config.setConsoleFilter          : 设置 log 控制台过滤器
+Config.setFileFilter             : 设置 log 文件过滤器
+Config.setStackDeep              : 设置 log 栈深度
+Config.setStackOffset            : 设置 log 栈偏移
+Config.setSaveDays               : 设置 log 可保留天数
+Config.addFormatter              : 增加 log 格式化器
+Config.setFileWriter             : 设置文件写入器
+Config.setOnConsoleOutputListener: 设置控制台输出监听器
+Config.setOnFileOutputListener   : 设置文件输出监听器
+Config.addFileExtraHead          : 增加 log 文件头部
+log                              : 自定义 tag 的 type 日志
+v                                : tag 为类名的 Verbose 日志
+vTag                             : 自定义 tag 的 Verbose 日志
+d                                : tag 为类名的 Debug 日志
+dTag                             : 自定义 tag 的 Debug 日志
+i                                : tag 为类名的 Info 日志
+iTag                             : 自定义 tag 的 Info 日志
+w                                : tag 为类名的 Warn 日志
+wTag                             : 自定义 tag 的 Warn 日志
+e                                : tag 为类名的 Error 日志
+eTag                             : 自定义 tag 的 Error 日志
+a                                : tag 为类名的 Assert 日志
+aTag                             : 自定义 tag 的 Assert 日志
+file                             : log 到文件
+json                             : log 字符串之 json
+xml                              : log 字符串之 xml
+getCurrentLogFilePath            : 获取当前日志文件路径
+getLogFiles                      : 获取所有日志
+```
+
+* ### Map 相关 -> [MapUtils.java][map.java] -> [Test][map.test]
+```
+newUnmodifiableMap: 创建 UnmodifiableMap
+newHashMap        : 创建 HashMap
+newLinkedHashMap  : 创建 LinkedHashMap
+newTreeMap        : 创建 TreeMap
+newHashTable      : 创建 HashTable
+isEmpty           : 判断 Map 是否为空
+isNotEmpty        : 判断 Map 是否非空
+size              : 获取 Map 元素个数
+forAllDo          : 对所有元素做操作
+transform         : 对 Map 做转变
+toString          : Map 转为字符串
+```
+
+* ### MetaData 相关 -> [MetaDataUtils.java][metaData.java] -> [Demo][metaData.demo]
+```
+getMetaDataInApp     : 获取 application 的 meta-data 值
+getMetaDataInActivity: 获取 activity 的 meta-data 值
+getMetaDataInService : 获取 service 的 meta-data 值
+getMetaDataInReceiver: 获取 receiver 的 meta-data 值
+```
+
+* ### 网络相关 -> [NetworkUtils.java][network.java] -> [Demo][network.demo]
+```
+openWirelessSettings                    : 打开网络设置界面
+isConnected                             : 判断网络是否连接
+isAvailable[Async]                      : 判断网络是否可用
+isAvailableByPing[Async]                : 用 ping 判断网络是否可用
+isAvailableByDns[Async]                 : 用 DNS 判断网络是否可用
+getMobileDataEnabled                    : 判断移动数据是否打开
+isMobileData                            : 判断网络是否是移动数据
+is4G                                    : 判断网络是否是 4G
+getWifiEnabled                          : 判断 wifi 是否打开
+setWifiEnabled                          : 打开或关闭 wifi
+isWifiConnected                         : 判断 wifi 是否连接状态
+isWifiAvailable[Async]                  : 判断 wifi 数据是否可用
+getNetworkOperatorName                  : 获取移动网络运营商名称
+getNetworkType                          : 获取当前网络类型
+getIPAddress[Async]                     : 获取 IP 地址
+getDomainAddress[Async]                 : 获取域名 IP 地址
+getIpAddressByWifi                      : 根据 WiFi 获取网络 IP 地址
+getGatewayByWifi                        : 根据 WiFi 获取网关 IP 地址
+getNetMaskByWifi                        : 根据 WiFi 获取子网掩码 IP 地址
+getServerAddressByWifi                  : 根据 WiFi 获取服务端 IP 地址
+registerNetworkStatusChangedListener    : 注册网络状态改变监听器
+isRegisteredNetworkStatusChangedListener: 判断是否注册网络状态改变监听器
+unregisterNetworkStatusChangedListener  : 注销网络状态改变监听器
+getWifiScanResult                       : 获取 WIFI 列表
+addOnWifiChangedConsumer                : 增加 WIFI 改变监听
+removeOnWifiChangedConsumer             : 移除 WIFI 改变监听
+```
+
+* ### 通知相关 -> [NotificationUtils.java][notification.java] -> [Demo][notification.demo]
+```
+areNotificationsEnabled     : 判断通知是否可用
+notify                      : 发送通知
+cancel                      : 取消通知
+cancelAll                   : 取消所有通知
+setNotificationBarVisibility: 设置通知栏是否可见
+```
+
+* ### 数字相关 -> [NumberUtils.java][number.java] -> [Test][number.test]
+```
+format      : 格式化
+float2Double: 浮点转双精度
+```
+
+* ### 对象相关 -> [ObjectUtils.java][object.java] -> [Test][object.test]
+```
+isEmpty          : 判断对象是否为空
+isNotEmpty       : 判断对象是否非空
+equals           : 判断对象是否相等
+compare          : 比较对象大小
+requireNonNull(s): 要求对象非空
+getOrDefault     : 获取非空或默认对象
+toString         : 转字符串
+hashCode(s)      : 获取对象哈希值
+```
+
+* ### 路径相关 -> [PathUtils.java][path.java] -> [Demo][path.demo]
+```
+join                           : 连接路径
+getRootPath                    : 获取根路径
+getDataPath                    : 获取数据路径
+getDownloadCachePath           : 获取下载缓存路径
+getInternalAppDataPath         : 获取内存应用数据路径
+getInternalAppCodeCacheDir     : 获取内存应用代码缓存路径
+getInternalAppCachePath        : 获取内存应用缓存路径
+getInternalAppDbsPath          : 获取内存应用数据库路径
+getInternalAppDbPath           : 获取内存应用数据库路径
+getInternalAppFilesPath        : 获取内存应用文件路径
+getInternalAppSpPath           : 获取内存应用 SP 路径
+getInternalAppNoBackupFilesPath: 获取内存应用未备份文件路径
+getExternalStoragePath         : 获取外存路径
+getExternalMusicPath           : 获取外存音乐路径
+getExternalPodcastsPath        : 获取外存播客路径
+getExternalRingtonesPath       : 获取外存铃声路径
+getExternalAlarmsPath          : 获取外存闹铃路径
+getExternalNotificationsPath   : 获取外存通知路径
+getExternalPicturesPath        : 获取外存图片路径
+getExternalMoviesPath          : 获取外存影片路径
+getExternalDownloadsPath       : 获取外存下载路径
+getExternalDcimPath            : 获取外存数码相机图片路径
+getExternalDocumentsPath       : 获取外存文档路径
+getExternalAppDataPath         : 获取外存应用数据路径
+getExternalAppCachePath        : 获取外存应用缓存路径
+getExternalAppFilesPath        : 获取外存应用文件路径
+getExternalAppMusicPath        : 获取外存应用音乐路径
+getExternalAppPodcastsPath     : 获取外存应用播客路径
+getExternalAppRingtonesPath    : 获取外存应用铃声路径
+getExternalAppAlarmsPath       : 获取外存应用闹铃路径
+getExternalAppNotificationsPath: 获取外存应用通知路径
+getExternalAppPicturesPath     : 获取外存应用图片路径
+getExternalAppMoviesPath       : 获取外存应用影片路径
+getExternalAppDownloadPath     : 获取外存应用下载路径
+getExternalAppDcimPath         : 获取外存应用数码相机图片路径
+getExternalAppDocumentsPath    : 获取外存应用文档路径
+getExternalAppObbPath          : 获取外存应用 OBB 路径
+getRootPathExternalFirst       : 优先获取外部根路径
+getAppDataPathExternalFirst    : 优先获取外部数据路径
+getFilesPathExternalFirst      : 优先获取外部文件路径
+getCachePathExternalFirst      : 优先获取外部缓存路径
+```
+
+* ### 权限相关 -> [PermissionUtils.java][permission.java] -> [Demo][permission.demo]
+```
+permission              : 设置请求权限
+permissionGroup         : 设置请求权限组
+permission.explain      : 设置权限请求前的解释
+permission.rationale    : 设置拒绝权限后再次请求的回调接口
+permission.callback     : 设置回调
+permission.theme        : 设置主题
+permission.request      : 开始请求
+getPermissions          : 获取应用权限
+isGranted               : 判断权限是否被授予
+isGrantedWriteSettings  : 判断修改系统权限是否被授予
+requestWriteSettings    : 申请修改系统权限
+isGrantedDrawOverlays   : 判断悬浮窗权限是否被授予
+requestDrawOverlays     : 申请悬浮窗权限
+launchAppDetailsSettings: 打开应用具体设置
+```
+
+* ### 手机相关 -> [PhoneUtils.java][phone.java] -> [Demo][phone.demo]
+```
+isPhone            : 判断设备是否是手机
+getDeviceId        : 获取设备码
+getSerial          : 获取序列号
+getIMEI            : 获取 IMEI 码
+getMEID            : 获取 MEID 码
+getIMSI            : 获取 IMSI 码
+getPhoneType       : 获取移动终端类型
+isSimCardReady     : 判断 sim 卡是否准备好
+getSimOperatorName : 获取 Sim 卡运营商名称
+getSimOperatorByMnc: 获取 Sim 卡运营商名称
+dial               : 跳至拨号界面
+call               : 拨打 phoneNumber
+sendSms            : 跳至发送短信界面
+```
+
+* ### 进程相关 -> [ProcessUtils.java][process.java] -> [Demo][process.demo]
+```
+getForegroundProcessName  : 获取前台线程包名
+killAllBackgroundProcesses: 杀死所有的后台服务进程
+killBackgroundProcesses   : 杀死后台服务进程
+isMainProcess             : 判断是否运行在主进程
+getCurrentProcessName     : 获取当前进程名称
+```
+
+* ### 反射相关 -> [ReflectUtils.java][reflect.java] -> [Test][reflect.test]
+```
+reflect    : 设置要反射的类
+newInstance: 实例化反射对象
+field      : 设置反射的字段
+method     : 设置反射的方法
+get        : 获取反射想要获取的
+```
+
+* ### 正则相关 -> [RegexUtils.java][regex.java] -> [Test][regex.test]
+```
+isMobileSimple                           : 简单验证手机号
+isMobileExact                            : 精确验证手机号
+isTel                                    : 验证电话号码
+isIDCard15                               : 验证身份证号码 15 位
+isIDCard18                               : 简单验证身份证号码 18 位
+isIDCard18Exact                          : 精确验证身份证号码 18 位
+isEmail                                  : 验证邮箱
+isURL                                    : 验证 URL
+isZh                                     : 验证汉字
+isUsername                               : 验证用户名
+isDate                                   : 验证 yyyy-MM-dd 格式的日期校验，已考虑平闰年
+isIP                                     : 验证 IP 地址
+isMatch                                  : 判断是否匹配正则
+getMatches                               : 获取正则匹配的部分
+getSplits                                : 获取正则匹配分组
+getReplaceFirst                          : 替换正则匹配的第一部分
+getReplaceAll                            : 替换所有正则匹配的部分
+RegexConstants.REGEX_DOUBLE_BYTE_CHAR    : 双字节
+RegexConstants.REGEX_BLANK_LINE          : 空行
+RegexConstants.REGEX_QQ_NUM              : QQ 号
+RegexConstants.REGEX_CHINA_POSTAL_CODE   : 邮编
+RegexConstants.REGEX_INTEGER             : 整数
+RegexConstants.REGEX_POSITIVE_INTEGER    : 正整数
+RegexConstants.REGEX_NEGATIVE_INTEGER    : 负整数
+RegexConstants.REGEX_NOT_NEGATIVE_INTEGER: 非负整数
+RegexConstants.REGEX_NOT_POSITIVE_INTEGER: 非正整数
+RegexConstants.REGEX_FLOAT               : 浮点数
+RegexConstants.REGEX_POSITIVE_FLOAT      : 正浮点数
+RegexConstants.REGEX_NEGATIVE_FLOAT      : 负浮点数
+RegexConstants.REGEX_NOT_NEGATIVE_FLOAT  : 非负浮点数
+RegexConstants.REGEX_NOT_POSITIVE_FLOAT  : 非正浮点数
+```
+
+* ### 资源相关 -> [ResourceUtils.java][resource.java] -> [Demo][resource.demo]
+```
+getDrawable        : 获取 Drawable
+getIdByName        : 根据名字获取 ID
+getStringIdByName  : 根据名字获取 string ID
+getColorIdByName   : 根据名字获取 color ID
+getDimenIdByName   : 根据名字获取 dimen ID
+getDrawableIdByName: 根据名字获取 dimen ID
+getMipmapIdByName  : 根据名字获取 mipmap ID
+getLayoutIdByName  : 根据名字获取 layout ID
+getStyleIdByName   : 根据名字获取 style ID
+getAnimIdByName    : 根据名字获取 anim ID
+getMenuIdByName    : 根据名字获取 menu ID
+copyFileFromAssets : 从 assets 中拷贝文件
+readAssets2String  : 从 assets 中读取字符串
+readAssets2List    : 从 assets 中按行读取字符串
+copyFileFromRaw    : 从 raw 中拷贝文件
+readRaw2String     : 从 raw 中读取字符串
+readRaw2List       : 从 raw 中按行读取字符串
+```
+
+* ### Rom 相关 -> [RomUtils.java][rom.java] -> [Demo][rom.demo]
+```
+isHuawei   : 是否华为
+isVivo     : 是否 VIVO
+isXiaomi   : 是否小米
+isOppo     : 是否 OPPO
+isLeeco    : 是否乐视
+is360      : 是否 360
+isZte      : 是否中兴
+isOneplus  : 是否一加
+isNubia    : 是否努比亚
+isCoolpad  : 是否酷派
+isLg       : 是否 LG
+isGoogle   : 是否谷歌
+isSamsung  : 是否三星
+isMeizu    : 是否魅族
+isLenovo   : 是否联想
+isSmartisan: 是否锤子
+isHtc      : 是否 HTC
+isSony     : 是否索尼
+isGionee   : 是否金立
+isMotorola : 是否摩托罗拉
+getRomInfo : 获取 ROM 信息
+```
+
+* ### 屏幕相关 -> [ScreenUtils.java][screen.java] -> [Demo][screen.demo]
+```
+getScreenWidth     : 获取屏幕的宽度（单位：px）
+getScreenHeight    : 获取屏幕的高度（单位：px）
+getAppScreenWidth  : 获取应用屏幕的宽度（单位：px）
+getAppScreenHeight : 获取应用屏幕的高度（单位：px）
+getScreenDensity   : 获取屏幕密度
+getScreenDensityDpi: 获取屏幕密度 DPI
+setFullScreen      : 设置屏幕为全屏
+setNonFullScreen   : 设置屏幕为非全屏
+toggleFullScreen   : 切换屏幕为全屏与否状态
+isFullScreen       : 判断屏幕是否为全屏
+setLandscape       : 设置屏幕为横屏
+setPortrait        : 设置屏幕为竖屏
+isLandscape        : 判断是否横屏
+isPortrait         : 判断是否竖屏
+getScreenRotation  : 获取屏幕旋转角度
+screenShot         : 截屏
+isScreenLock       : 判断是否锁屏
+setSleepDuration   : 设置进入休眠时长
+getSleepDuration   : 获取进入休眠时长
+```
+
+* ### SD 卡相关 -> [SDCardUtils.java][sdcard.java] -> [Demo][sdcard.demo]
+```
+isSDCardEnableByEnvironment: 根据 Environment 判断 SD 卡是否可用
+getSDCardPathByEnvironment : 根据 Environment 获取 SD 卡路径
+getSDCardInfo              : 获取 SD 卡信息
+getMountedSDCardPath       : 获取已挂载的 SD 卡路径
+getExternalTotalSize       : 获取外置 SD 卡总大小
+getExternalAvailableSize   : 获取外置 SD 卡可用大小
+getInternalTotalSize       : 获取内置 SD 卡总大小
+getInternalAvailableSize   : 获取内置 SD 卡可用大小
+```
+
+* ### 服务相关 -> [ServiceUtils.java][service.java]
+```
+getAllRunningServices: 获取所有运行的服务
+startService         : 启动服务
+stopService          : 停止服务
+bindService          : 绑定服务
+unbindService        : 解绑服务
+isServiceRunning     : 判断服务是否运行
+```
+
+* ### 阴影相关 -> [ShadowUtils.java][shadow.java] -> [Demo][shadow.demo]
+```
+apply: 应用阴影
+```
+
+* ### Shell 相关 -> [ShellUtils.java][shell.java]
+```
+execCmd[Async]: 执行命令
+```
+
+* ### 尺寸相关 -> [SizeUtils.java][size.java]
+```
+dp2px, px2dp     : dp 与 px 转换
+sp2px, px2sp     : sp 与 px 转换
+applyDimension   : 各种单位转换
+forceGetViewSize : 在 onCreate 中获取视图的尺寸
+measureView      : 测量视图尺寸
+getMeasuredWidth : 获取测量视图宽度
+getMeasuredHeight: 获取测量视图高度
+```
+
+* ### Snackbar 相关 -> [SnackbarUtils.java][snackbar.java] -> [Demo][snackbar.demo]
+```
+with           : 设置 snackbar 依赖 view
+setMessage     : 设置消息
+setMessageColor: 设置消息颜色
+setBgColor     : 设置背景色
+setBgResource  : 设置背景资源
+setDuration    : 设置显示时长
+setAction      : 设置行为
+setBottomMargin: 设置底边距
+show           : 显示 snackbar
+showSuccess    : 显示预设成功的 snackbar
+showWarning    : 显示预设警告的 snackbar
+showError      : 显示预设错误的 snackbar
+dismiss        : 消失 snackbar
+getView        : 获取 snackbar 视图
+addView        : 添加 snackbar 视图
+```
+
+* ### SpannableString 相关 -> [SpanUtils.java][span.java] -> [Demo][span.demo]
+```
+with              : 设置控件
+setFlag           : 设置标识
+setForegroundColor: 设置前景色
+setBackgroundColor: 设置背景色
+setLineHeight     : 设置行高
+setQuoteColor     : 设置引用线的颜色
+setLeadingMargin  : 设置缩进
+setBullet         : 设置列表标记
+setFontSize       : 设置字体尺寸
+setFontProportion : 设置字体比例
+setFontXProportion: 设置字体横向比例
+setStrikethrough  : 设置删除线
+setUnderline      : 设置下划线
+setSuperscript    : 设置上标
+setSubscript      : 设置下标
+setBold           : 设置粗体
+setItalic         : 设置斜体
+setBoldItalic     : 设置粗斜体
+setFontFamily     : 设置字体系列
+setTypeface       : 设置字体
+setAlign          : 设置对齐
+setClickSpan      : 设置点击事件
+setUrl            : 设置超链接
+setBlur           : 设置模糊
+setShader         : 设置着色器
+setShadow         : 设置阴影
+setSpans          : 设置样式
+append            : 追加样式字符串
+appendLine        : 追加一行样式字符串
+appendImage       : 追加图片
+appendSpace       : 追加空白
+create            : 创建样式字符串
+```
+
+* ### SP 相关 -> [SPStaticUtils.java][spStatic.java] -> [Demo][spStatic.demo]
+```
+setDefaultSPUtils: 设置默认 SP 实例
+put              : SP 中写入数据
+getString        : SP 中读取 String
+getInt           : SP 中读取 int
+getLong          : SP 中读取 long
+getFloat         : SP 中读取 float
+getBoolean       : SP 中读取 boolean
+getAll           : SP 中获取所有键值对
+contains         : SP 中是否存在该 key
+remove           : SP 中移除该 key
+clear            : SP 中清除所有数据
+```
+
+* ### SP 相关 -> [SPUtils.java][sp.java]
+```
+getInstance        : 获取 SP 实例
+Instance.put       : SP 中写入数据
+Instance.getString : SP 中读取 String
+Instance.getInt    : SP 中读取 int
+Instance.getLong   : SP 中读取 long
+Instance.getFloat  : SP 中读取 float
+Instance.getBoolean: SP 中读取 boolean
+Instance.getAll    : SP 中获取所有键值对
+Instance.contains  : SP 中是否存在该 key
+Instance.remove    : SP 中移除该 key
+Instance.clear     : SP 中清除所有数据
+```
+
+* ### 字符串相关 -> [StringUtils.java][string.java] -> [Test][string.test]
+```
+isEmpty         : 判断字符串是否为 null 或长度为 0
+isTrimEmpty     : 判断字符串是否为 null 或全为空格
+isSpace         : 判断字符串是否为 null 或全为空白字符
+equals          : 判断两字符串是否相等
+equalsIgnoreCase: 判断两字符串忽略大小写是否相等
+null2Length0    : null 转为长度为 0 的字符串
+length          : 返回字符串长度
+upperFirstLetter: 首字母大写
+lowerFirstLetter: 首字母小写
+reverse         : 反转字符串
+toDBC           : 转化为半角字符
+toSBC           : 转化为全角字符
+getString       : 获取字符资源
+getStringArray  : 获取字符数组资源
+format          : 格式化字符串
+```
+
+* ### 线程相关 -> [ThreadUtils.java][thread.java] -> [Test][thread.test]
+```
+isMainThread            : 判断当前是否主线程
+getMainHandler          : 获取主线程 Handler
+runOnUiThread           : 运行在主线程
+runOnUiThreadDelayed    : 延时运行在主线程
+getFixedPool            : 获取固定线程池
+getSinglePool           : 获取单线程池
+getCachedPool           : 获取缓冲线程池
+getIoPool               : 获取 IO 线程池
+getCpuPool              : 获取 CPU 线程池
+executeByFixed          : 在固定线程池执行任务
+executeByFixedWithDelay : 在固定线程池延时执行任务
+executeByFixedAtFixRate : 在固定线程池按固定频率执行任务
+executeBySingle         : 在单线程池执行任务
+executeBySingleWithDelay: 在单线程池延时执行任务
+executeBySingleAtFixRate: 在单线程池按固定频率执行任务
+executeByCached         : 在缓冲线程池执行任务
+executeByCachedWithDelay: 在缓冲线程池延时执行任务
+executeByCachedAtFixRate: 在缓冲线程池按固定频率执行任务
+executeByIo             : 在 IO 线程池执行任务
+executeByIoWithDelay    : 在 IO 线程池延时执行任务
+executeByIoAtFixRate    : 在 IO 线程池按固定频率执行任务
+executeByCpu            : 在 CPU 线程池执行任务
+executeByCpuWithDelay   : 在 CPU 线程池延时执行任务
+executeByCpuAtFixRate   : 在 CPU 线程池按固定频率执行任务
+executeByCustom         : 在自定义线程池执行任务
+executeByCustomWithDelay: 在自定义线程池延时执行任务
+executeByCustomAtFixRate: 在自定义线程池按固定频率执行任务
+cancel                  : 取消任务的执行
+setDeliver              : 设置任务结束后交付的线程
+```
+
+* ### 时间相关 -> [TimeUtils.java][time.java] -> [Test][time.test]
+```
+getSafeDateFormat       : 获取安全的日期格式
+millis2String           : 将时间戳转为时间字符串
+string2Millis           : 将时间字符串转为时间戳
+string2Date             : 将时间字符串转为 Date 类型
+date2String             : 将 Date 类型转为时间字符串
+date2Millis             : 将 Date 类型转为时间戳
+millis2Date             : 将时间戳转为 Date 类型
+getTimeSpan             : 获取两个时间差（单位：unit）
+getFitTimeSpan          : 获取合适型两个时间差
+getNowMills             : 获取当前毫秒时间戳
+getNowString            : 获取当前时间字符串
+getNowDate              : 获取当前 Date
+getTimeSpanByNow        : 获取与当前时间的差（单位：unit）
+getFitTimeSpanByNow     : 获取合适型与当前时间的差
+getFriendlyTimeSpanByNow: 获取友好型与当前时间的差
+getMillis               : 获取与给定时间等于时间差的时间戳
+getString               : 获取与给定时间等于时间差的时间字符串
+getDate                 : 获取与给定时间等于时间差的 Date
+getMillisByNow          : 获取与当前时间等于时间差的时间戳
+getStringByNow          : 获取与当前时间等于时间差的时间字符串
+getDateByNow            : 获取与当前时间等于时间差的 Date
+isToday                 : 判断是否今天
+isLeapYear              : 判断是否闰年
+getChineseWeek          : 获取中式星期
+getUSWeek               : 获取美式式星期
+isAm                    : 判断是否上午
+isPm                    : 判断是否下午
+getValueByCalendarField : 根据日历字段获取值
+getChineseZodiac        : 获取生肖
+getZodiac               : 获取星座
+```
+
+* ### 吐司相关 -> [ToastUtils.java][toast.java] -> [Demo][toast.demo]
+```
+make                     : 制作吐司
+make.setMode             : 设置模式
+make.setGravity          : 设置位置
+make.setBgColor          : 设置背景颜色
+make.setBgResource       : 设置背景资源
+make.setTextColor        : 设置字体颜色
+make.setTextSize         : 设置字体大小
+make.setDurationIsLong   : 设置是否长时间显示
+make.setLeftIcon         : 设置左侧图标
+make.setTopIcon          : 设置顶部图标
+make.setRightIcon        : 设置右侧图标
+make.setBottomIcon       : 设置底部图标
+make.setNotUseSystemToast: 设置不使用系统吐司
+make.show                : 显示吐司
+getDefaultMaker          : 获取默认制作实例（控制 showShort、showLong 样式）
+showShort                : 显示短时吐司
+showLong                 : 显示长时吐司
+cancel                   : 取消吐司显示
+```
+
+* ### 触摸相关 -> [TouchUtils.java][touch.java]
+```
+setOnTouchListener: 设置触摸事件
+```
+
+* ### UI 消息相关 -> [UiMessageUtils.java][uiMessage.java] -> [Demo][uiMessage.demo]
+```
+send          : 发送消息
+addListener   : 增加消息监听器
+removeListener: 移除消息监听器
+```
+
+* ### URI 相关 -> [UriUtils.java][uri.java]
+```
+res2Uri            : res 转 uri
+file2Uri           : file 转 uri
+uri2File           : uri 转 file
+uri2FileNoCacheCopy: uri 转 file 不拷贝缓存
+uri2Bytes          : uri 转 bytes
+```
+
+* ### UtilsTransActivity -> [UtilsTransActivity.java][trans.java]
+```
+start: 启动随当前线程的透明 Activity
+```
+
+* ### UtilsTransActivity4MainProcess -> [UtilsTransActivity4MainProcess.java][trans4Main.java]
+```
+start: 启动主线程的透明 Activity
+```
+
+* ### 震动相关 -> [VibrateUtils.java][vibrate.java] -> [Demo][vibrate.demo]
+```
+vibrate: 震动
+cancel : 取消
+```
+
+* ### 视图相关 -> [ViewUtils.java][view.java]
+```
+setViewEnabled      : 设置视图是否可用
+runOnUiThread       : 在 UI 线程运行
+runOnUiThreadDelayed: 在 UI 线程延迟运行
+isLayoutRtl         : 布局是否从右到左
+fixScrollViewTopping: 修复 ScrollView 置顶问题
+layoutId2View       : layoutId 转为 view
+```
+
+* ### 音量相关 -> [VolumeUtils.java][volume.java]
+```
+getVolume   : 获取音量
+setVolume   : 设置音量
+getMaxVolume: 获取最大音量
+getMinVolume: 获取最小音量
+```
+
+* ### 压缩相关 -> [ZipUtils.java][zip.java] -> [Test][zip.test]
+```
+zipFiles          : 批量压缩文件
+zipFile           : 压缩文件
+unzipFile         : 解压文件
+unzipFileByKeyword: 解压带有关键字的文件
+getFilesPath      : 获取压缩文件中的文件路径链表
+getComments       : 获取压缩文件中的注释链表
+```
+
+
+## 打个小广告
+
+欢迎加入我的小专栏「**[基你太美](https://xiaozhuanlan.com/Blankj)**」一起学习。
+
+
+
+[activity.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
+[activity.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/ActivityActivity.kt
+
+[adaptScreen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
+[adaptScreen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptScreenActivity.kt
+
+[api.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ApiUtils.java
+[api.readme]: https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/api-gradle-plugin
+
+[app.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java
+[app.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/app/AppActivity.kt
+
+[array.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ArrayUtils.java
+[array.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ArrayUtilsTest.java
+
+[bar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java
+[bar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/BarActivity.kt
+
+[brightness.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/BrightnessUtils.java
+[brightness.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/brightness/BrightnessActivity.kt
+
+[bus.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/BusUtils.java
+[bus.readme]: https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/bus-gradle-plugin
+
+[cacheDiskStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskStaticUtils.java
+[cacheDiskStatic.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskStaticUtilsTest.java
+
+[cacheDisk.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
+[cacheDisk.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
+
+[cacheDoubleStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleStaticUtils.java
+[cacheDoubleStatic.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleStaticUtilsTest.java
+
+[cacheDouble.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
+[cacheDouble.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
+
+[cacheMemoryStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryStaticUtils.java
+[cacheMemoryStatic.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryStaticUtilsTest.java
+
+[cacheMemory.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
+[cacheMemory.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
+
+[clean.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java
+[clean.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clean/CleanActivity.kt
+
+[click.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClickUtils.java
+[click.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/click/ClickActivity.kt
+
+[clipboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClipboardUtils.java
+[clipboard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clipboard/ClipboardActivity.kt
+
+[clone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloneUtils.java
+[clone.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CloneUtilsTest.java
+
+[close.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
+
+[collection.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CollectionUtils.java
+[collection.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CollectionUtilsTest.java
+
+[color.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ColorUtils.java
+[color.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ColorUtilsTest.java
+
+[convert.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
+[convert.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
+
+[crash.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java
+
+[debouncing.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/DebouncingUtils.java
+
+[device.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
+[device.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/device/DeviceActivity.kt
+
+[empty.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/EmptyUtils.java
+[empty.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/EmptyUtilsTest.java
+
+[encode.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
+[encode.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
+
+[encrypt.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
+[encrypt.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
+
+[fileIo.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
+[fileIo.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java
+
+[file.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java
+[file.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
+
+[flashlight.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FlashlightUtils.java
+[flashlight.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/flashlight/FlashlightActivity.kt
+
+[fragment.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
+[fragment.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/FragmentActivity.kt
+
+[gson.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/GsonUtils.java
+[gson.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/GsonUtilsTest.java
+
+[image.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java
+[image.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/image/ImageActivity.kt
+
+[intent.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java
+
+[keyboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
+[keyboard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/keyboard/KeyboardActivity.kt
+
+[language.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/LanguageUtils.java
+[language.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/language/LanguageActivity.kt
+
+[log.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java
+[log.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/log/LogActivity.kt
+
+[map.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/MapUtils.java
+[map.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/MapUtilsTest.java
+
+[metaData.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
+[metaData.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/metaData/MetaDataActivity.kt
+
+[network.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
+[network.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/network/NetworkActivity.kt
+
+[notification.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java
+[notification.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt
+
+[number.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java
+[number.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java
+
+[object.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
+[object.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
+
+[path.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java
+[path.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/path/PathActivity.kt
+
+[permission.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
+[permission.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/permission/PermissionActivity.kt
+
+[phone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
+[phone.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/phone/PhoneActivity.kt
+
+[process.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
+[process.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/process/ProcessActivity.kt
+
+[reflect.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
+[reflect.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
+
+[regex.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
+[regex.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
+
+[resource.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
+[resource.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/resource/ResourceActivity.kt
+
+[rom.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
+[rom.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/rom/RomActivity.kt
+
+[screen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
+[screen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/screen/ScreenActivity.kt
+
+[sdcard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
+[sdcard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/sdcard/SDCardActivity.kt
+
+[service.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
+
+[shadow.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShadowUtils.java
+[shadow.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/shadow/ShadowActivity.kt
+
+[shell.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
+
+[size.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
+
+[snackbar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
+[snackbar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/snackbar/SnackbarActivity.kt
+
+[span.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
+[span.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/span/SpanActivity.kt
+
+[spStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPStaticUtils.java
+[spStatic.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/spStatic/SPStaticActivity.kt
+
+[sp.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
+
+[string.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
+[string.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
+
+[thread.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
+[thread.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
+
+[time.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
+[time.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
+
+[toast.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java
+[toast.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/ToastActivity.kt
+
+[touch.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/TouchUtils.java
+
+[uiMessage.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UiMessageUtils.java
+[uiMessage.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/uiMessage/UiMessageActivity.kt
+
+[uri.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java
+
+[trans.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity.java
+
+[trans4Main.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity4MainProcess.java
+
+[vibrate.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/VibrateUtils.java
+[vibrate.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/vibrate/VibrateActivity.kt
+
+[view.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ViewUtils.java
+
+[volume.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/VolumeUtils.java
+[volume.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/volume/VolumeActivity.kt
+
+[zip.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java
+[zip.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
diff --git a/lib/utilcode/README.md b/lib/utilcode/README.md
new file mode 100644
index 0000000000..d8f5c13bcb
--- /dev/null
+++ b/lib/utilcode/README.md
@@ -0,0 +1,1478 @@
+## Download
+
+Gradle:
+```groovy
+// if u use AndroidX, use the following
+implementation 'com.blankj:utilcodex:1.31.1'
+
+// Not in maintenance
+implementation 'com.blankj:utilcode:1.30.7'
+```
+
+
+## APIs
+
+* ### About Activity -> [ActivityUtils.java][activity.java] -> [Demo][activity.demo]
+```
+addActivityLifecycleCallbacks
+removeActivityLifecycleCallbacks
+getAliveActivityByContext
+getActivityByContext
+isActivityExists
+startActivity
+startActivityForResult
+startActivities
+startHomeActivity
+getActivityList
+getLauncherActivity
+getMainActivities
+getTopActivity
+isActivityAlive
+isActivityExistsInStack
+finishActivity
+finishToActivity
+finishOtherActivities
+finishAllActivities
+finishAllActivitiesExceptNewest
+```
+
+* ### About AdaptScreen -> [AdaptScreenUtils.java][adaptScreen.java] -> [Demo][adaptScreen.demo]
+```
+adaptWidth
+adaptHeight
+closeAdapt
+pt2Px
+px2Pt
+```
+
+* ### About Api -> [ApiUtils.java][api.java] -> [README][api.readme]
+```
+getApi
+```
+
+* ### About App -> [AppUtils.java][app.java] -> [Demo][app.demo]
+```
+registerAppStatusChangedListener
+unregisterAppStatusChangedListener
+installApp
+uninstallApp
+isAppInstalled
+isAppRoot
+isAppDebug
+isAppSystem
+isAppForeground
+isAppRunning
+launchApp
+relaunchApp
+launchAppDetailsSettings
+exitApp
+getAppIcon
+getAppPackageName
+getAppName
+getAppPath
+getAppVersionName
+getAppVersionCode
+getAppMinSdkVersion
+getAppTargetSdkVersion
+getAppSignatures
+getAppSignaturesSHA1
+getAppSignaturesSHA256
+getAppSignaturesMD5
+getAppInfo
+getAppsInfo
+getApkInfo
+```
+
+* ### About Array -> [ArrayUtils.java][array.java] -> [Test][array.test]
+```
+newArray
+newLongArray
+newIntArray
+newShortArray
+newCharArray
+newByteArray
+newDoubleArray
+newFloatArray
+newBooleanArray
+isEmpty
+getLength
+isSameLength
+get
+set
+equals
+reverse
+copy
+subArray
+add
+remove
+removeElement
+indexOf
+lastIndexOf
+contains
+toPrimitive
+toObject
+asList
+asUnmodifiableList
+asArrayList
+asLinkedList
+sort
+forAllDo
+toString
+```
+
+* ### About Bar -> [BarUtils.java][bar.java] -> [Demo][bar.demo]
+```
+getStatusBarHeight
+setStatusBarVisibility
+isStatusBarVisible
+setStatusBarLightMode
+isStatusBarLightMode
+addMarginTopEqualStatusBarHeight
+subtractMarginTopEqualStatusBarHeight
+setStatusBarColor
+setStatusBarColor4Drawer
+transparentStatusBar
+getActionBarHeight
+setNotificationBarVisibility
+getNavBarHeight
+setNavBarVisibility
+isNavBarVisible
+setNavBarColor
+getNavBarColor
+isSupportNavBar
+setNavBarLightMode
+isNavBarLightMode
+transparentNavBar
+```
+
+* ### About Brightness -> [BrightnessUtils.java][brightness.java] -> [Demo][brightness.demo]
+```
+isAutoBrightnessEnabled
+setAutoBrightnessEnabled
+getBrightness
+setBrightness
+setWindowBrightness
+getWindowBrightness
+```
+
+* ### About Bus -> [BusUtils.java][bus.java] -> [README][bus.readme]
+```
+register
+unregister
+post
+postSticky
+removeSticky
+toString_
+```
+
+* ### About CacheDiskStatic -> [CacheDiskStaticUtils.java][cacheDiskStatic.java] -> [Test][cacheDiskStatic.test]
+```
+setDefaultCacheDiskUtils
+put
+getBytes
+getString
+getJSONObject
+getJSONArray
+getBitmap
+getDrawable
+getParcelable
+getSerializable
+getCacheSize
+getCacheCount
+remove
+clear
+```
+
+* ### About CacheDisk -> [CacheDiskUtils.java][cacheDisk.java] -> [Test][cacheDisk.test]
+```
+getInstance
+Instance.put
+Instance.getBytes
+Instance.getString
+Instance.getJSONObject
+Instance.getJSONArray
+Instance.getBitmap
+Instance.getDrawable
+Instance.getParcelable
+Instance.getSerializable
+Instance.getCacheSize
+Instance.getCacheCount
+Instance.remove
+Instance.clear
+```
+
+* ### About CacheDoubleStatic -> [CacheDoubleStaticUtils.java][cacheDoubleStatic.java] -> [Test][cacheDoubleStatic.test]
+```
+setDefaultCacheDoubleUtils
+put
+getBytes
+getString
+getJSONObject
+getJSONArray
+getBitmap
+getDrawable
+getParcelable
+getSerializable
+getCacheDiskSize
+getCacheDiskCount
+getCacheMemoryCount
+remove
+clear
+```
+
+* ### About CacheDouble -> [CacheDoubleUtils.java][cacheDouble.java] -> [Test][cacheDouble.test]
+```
+getInstance
+Instance.put
+Instance.getBytes
+Instance.getString
+Instance.getJSONObject
+Instance.getJSONArray
+Instance.getBitmap
+Instance.getDrawable
+Instance.getParcelable
+Instance.getSerializable
+Instance.getCacheDiskSize
+Instance.getCacheDiskCount
+Instance.getCacheMemoryCount
+Instance.remove
+Instance.clear
+```
+
+* ### About CacheMemoryStatic -> [CacheMemoryStaticUtils.java][cacheMemoryStatic.java] -> [Test][cacheMemoryStatic.test]
+```
+setDefaultCacheMemoryUtils
+put
+get
+getCacheCount
+remove
+clear
+```
+
+* ### About CacheMemory -> [CacheMemoryUtils.java][cacheMemory.java] -> [Test][cacheMemory.test]
+```
+getInstance
+Instance.put
+Instance.get
+Instance.getCacheCount
+Instance.remove
+Instance.clear
+```
+
+* ### About Clean -> [CleanUtils.java][clean.java] -> [Demo][clean.demo]
+```
+cleanInternalCache
+cleanInternalFiles
+cleanInternalDbs
+cleanInternalDbByName
+cleanInternalSp
+cleanExternalCache
+cleanCustomDir
+```
+
+* ### About Click -> [ClickUtils.java][click.java] -> [Demo][click.demo]
+```
+applyPressedViewScale
+applyPressedViewAlpha
+applyPressedBgAlpha
+applyPressedBgDark
+applySingleDebouncing
+applyGlobalDebouncing
+expandClickArea
+back2HomeFriendly
+ClickUtils#OnDebouncingClickListener
+ClickUtils#OnMultiClickListener
+```
+
+* ### About Clipboard -> [ClipboardUtils.java][clipboard.java] -> [Demo][clipboard.demo]
+```
+copyText
+getText
+copyUri
+getUri
+copyIntent
+getIntent
+addChangedListener
+removeChangedListener
+```
+
+* ### About Clone -> [CloneUtils.java][clone.java] -> [Test][clone.test]
+```
+deepClone
+```
+
+* ### About Close -> [CloseUtils.java][close.java]
+```
+closeIO
+closeIOQuietly
+```
+
+* ### About Collection -> [CollectionUtils.java][collection.java] -> [Test][collection.test]
+```
+newUnmodifiableList[NotNull]: 新建只读[非空]链表
+newArrayList[NotNull]       : 新建数组型[非空]链表
+newLinkedList[NotNull]      : 新建指针型[非空]链表
+newHashSet[NotNull]         : 新建哈希[非空]集合
+newTreeSet[NotNull]         : 新建有序[非空]集合
+newSynchronizedCollection
+newUnmodifiableCollection
+union
+intersection
+disjunction
+subtract
+containsAny
+getCardinalityMap
+isSubCollection
+isProperSubCollection
+isEqualCollection
+cardinality
+find
+forAllDo
+filter
+select
+selectRejected
+transform
+collect
+countMatches
+exists
+addIgnoreNull
+addAll
+get
+size
+sizeIsEmpty
+isEmpty
+isNotEmpty
+retainAll
+removeAll
+toString
+```
+
+* ### About Color -> [ColorUtils.java][color.java]
+```
+getColor
+setAlphaComponent
+setRedComponent
+setGreenComponent
+setBlueComponent
+string2Int
+int2RgbString
+int2ArgbString
+getRandomColor
+isLightColor
+```
+
+* ### About Convert -> [ConvertUtils.java][convert.java] -> [Test][convert.test]
+```
+int2HexString, hexString2Int
+bytes2Bits, bits2Bytes
+bytes2Chars, chars2Bytes
+bytes2HexString, hexString2Bytes
+bytes2String, string2Bytes
+bytes2JSONObject, jsonObject2Bytes
+bytes2JSONArray, jsonArray2Bytes
+bytes2Parcelable, parcelable2Bytes
+bytes2Object, serializable2Bytes
+bytes2Bitmap, bitmap2Bytes
+memorySize2Byte, byte2MemorySize
+byte2FitMemorySize
+timeSpan2Millis, millis2TimeSpan
+millis2FitTimeSpan
+input2OutputStream, output2InputStream
+inputStream2Bytes, bytes2InputStream
+outputStream2Bytes, bytes2OutputStream
+inputStream2String, string2InputStream
+outputStream2String, string2OutputStream
+inputStream2Lines
+drawable2Bitmap, bitmap2Drawable
+drawable2Bytes, bytes2Drawable
+view2Bitmap
+dp2px, px2dp
+sp2px, px2sp
+```
+
+* ### About Crash -> [CrashUtils.java][crash.java]
+```
+init
+CrashInfo.addExtraHead
+CrashInfo.getThrowable
+CrashInfo.toString
+```
+
+* ### About Debouncing -> [DebouncingUtils.java][debouncing.java]
+```
+isValid
+```
+
+* ### About Device -> [DeviceUtils.java][device.java] -> [Demo][device.demo]
+```
+isDeviceRooted
+isAdbEnabled
+getSDKVersionName
+getSDKVersionCode
+getAndroidID
+getMacAddress
+getManufacturer
+getModel
+getABIs
+isTablet
+isEmulator
+isDevelopmentSettingsEnabled
+getUniqueDeviceId
+isSameDevice
+```
+
+* ### About Flashlight -> [FlashlightUtils.java][flashlight.java] -> [Demo][flashlight.demo]
+```
+isFlashlightEnable
+isFlashlightOn
+setFlashlightStatus
+destroy
+```
+
+* ### About Encode -> [EncodeUtils.java][encode.java] -> [Test][encode.test]
+```
+urlEncode
+urlDecode
+base64Encode
+base64Encode2String
+base64Decode
+htmlEncode
+htmlDecode
+binaryEncode
+binaryDecode
+```
+
+* ### About Encrypt -> [EncryptUtils.java][encrypt.java] -> [Test][encrypt.test]
+```
+encryptMD2, encryptMD2ToString
+encryptMD5, encryptMD5ToString
+encryptMD5File, encryptMD5File2String
+encryptSHA1, encryptSHA1ToString
+encryptSHA224, encryptSHA224ToString
+encryptSHA256, encryptSHA256ToString
+encryptSHA384, encryptSHA384ToString
+encryptSHA512, encryptSHA512ToString
+encryptHmacMD5, encryptHmacMD5ToString
+encryptHmacSHA1, encryptHmacSHA1ToString
+encryptHmacSHA224, encryptHmacSHA224ToString
+encryptHmacSHA256, encryptHmacSHA256ToString
+encryptHmacSHA384, encryptHmacSHA384ToString
+encryptHmacSHA512, encryptHmacSHA512ToString
+encryptDES, encryptDES2HexString, encryptDES2Base64
+decryptDES, decryptHexStringDES, decryptBase64DES
+encrypt3DES, encrypt3DES2HexString, encrypt3DES2Base64
+decrypt3DES, decryptHexString3DES, decryptBase64_3DES
+encryptAES, encryptAES2HexString, encryptAES2Base64
+decryptAES, decryptHexStringAES, decryptBase64AES
+encryptRSA, encryptRSA2HexString, encryptRSA2Base64
+decryptRSA, decryptHexStringRSA, decryptBase64RSA
+rc4
+```
+
+* ### About FileIO -> [FileIOUtils.java][fileIo.java] -> [Test][fileIo.test]
+```
+writeFileFromIS
+writeFileFromBytesByStream
+writeFileFromBytesByChannel
+writeFileFromBytesByMap
+writeFileFromString
+readFile2List
+readFile2String
+readFile2BytesByStream
+readFile2BytesByChannel
+readFile2BytesByMap
+setBufferSize
+```
+
+* ### About File -> [FileUtils.java][file.java] -> [Test][file.test]
+```
+getFileByPath
+isFileExists
+rename
+isDir
+isFile
+createOrExistsDir
+createOrExistsFile
+createFileByDeleteOldFile
+copy
+move
+delete
+deleteAllInDir
+deleteFilesInDir
+deleteFilesInDirWithFilter
+listFilesInDir
+listFilesInDirWithFilter
+getFileLastModified
+getFileCharsetSimple
+getFileLines
+getSize
+getLength
+getFileMD5
+getFileMD5ToString
+getDirName
+getFileName
+getFileNameNoExtension
+getFileExtension
+notifySystemToScan
+getFsTotalSize
+getFsAvailableSize
+```
+
+* ### About Fragment -> [FragmentUtils.java][fragment.java] -> [Demo][fragment.demo]
+```
+add
+show
+hide
+showHide
+replace
+pop
+popTo
+popAll
+remove
+removeTo
+removeAll
+getTop
+getTopInStack
+getTopShow
+getTopShowInStack
+getFragments
+getFragmentsInStack
+getAllFragments
+getAllFragmentsInStack
+findFragment
+dispatchBackPress
+setBackgroundColor
+setBackgroundResource
+setBackground
+```
+
+* ### About Gson -> [GsonUtils.java][gson.java] -> [Test][gson.test]
+```
+setGsonDelegate
+setGson
+getGson
+toJson
+fromJson
+getListType
+getSetType
+getMapType
+getArrayType
+getType
+```
+
+* ### About Image -> [ImageUtils.java][image.java] -> [Demo][image.demo]
+```
+bitmap2Bytes, bytes2Bitmap
+drawable2Bitmap, bitmap2Drawable
+drawable2Bytes, bytes2Drawable
+view2Bitmap
+getBitmap
+scale
+clip
+skew
+rotate
+getRotateDegree
+toRound
+toRoundCorner
+addCornerBorder
+addCircleBorder
+addReflection
+addTextWatermark
+addImageWatermark
+toAlpha
+toGray
+fastBlur
+renderScriptBlur
+stackBlur
+save
+save2Album
+isImage
+getImageType
+compressByScale
+compressByQuality
+compressBySampleSize
+getSize
+```
+
+* ### About Intent -> [IntentUtils.java][intent.java]
+```
+isIntentAvailable
+getInstallAppIntent
+getUninstallAppIntent
+getLaunchAppIntent
+getLaunchAppDetailsSettingsIntent
+getShareTextIntent
+getShareImageIntent
+getShareTextImageIntent
+getComponentIntent
+getShutdownIntent
+getCaptureIntent
+```
+
+* ### About Keyboard -> [KeyboardUtils.java][keyboard.java] -> [Demo][keyboard.demo]
+```
+showSoftInput
+hideSoftInput
+toggleSoftInput
+isSoftInputVisible
+registerSoftInputChangedListener
+unregisterSoftInputChangedListener
+fixAndroidBug5497
+fixSoftInputLeaks
+clickBlankArea2HideSoftInput
+```
+
+* ### About Language -> [LanguageUtils.java][language.java] -> [Demo][language.demo]
+```
+applySystemLanguage
+applyLanguage
+isAppliedLanguage
+getAppliedLanguage
+getContextLanguage
+getAppContextLanguage
+getSystemLanguage
+updateAppContextLanguage
+attachBaseContext
+```
+
+* ### About Log -> [LogUtils.java][log.java] -> [Demo][log.demo]
+```
+getConfig
+Config.setLogSwitch
+Config.setConsoleSwitch
+Config.setGlobalTag
+Config.setLogHeadSwitch
+Config.setLog2FileSwitch
+Config.setDir
+Config.setFilePrefix
+Config.setBorderSwitch
+Config.setSingleTagSwitch
+Config.setConsoleFilter
+Config.setFileFilter
+Config.setStackDeep
+Config.setStackOffset
+Config.setSaveDays
+Config.addFormatter
+Config.setFileWriter
+Config.setOnConsoleOutputListener
+Config.setOnFileOutputListener
+Config.addFileExtraHead
+log
+v
+vTag
+d
+dTag
+i
+iTag
+w
+wTag
+e
+eTag
+a
+aTag
+file
+json
+xml
+getCurrentLogFilePath
+getLogFiles
+```
+
+* ### About Map -> [MapUtils.java][map.java] -> [Test][map.test]
+```
+newUnmodifiableMap
+newHashMap
+newLinkedHashMap
+newTreeMap
+newHashTable
+isEmpty
+isNotEmpty
+size
+forAllDo
+transform
+toString
+```
+
+* ### About MetaData -> [MetaDataUtils.java][metaData.java] -> [Demo][metaData.demo]
+```
+getMetaDataInApp
+getMetaDataInActivity
+getMetaDataInService
+getMetaDataInReceiver
+```
+
+* ### About Network -> [NetworkUtils.java][network.java] -> [Demo][network.demo]
+```
+openWirelessSettings
+isConnected
+isAvailable[Async]                      : 判断网络是否可用
+isAvailableByPing[Async]                : 用 ping 判断网络是否可用
+isAvailableByDns[Async]                 : 用 DNS 判断网络是否可用
+getMobileDataEnabled
+isMobileData
+is4G
+getWifiEnabled
+setWifiEnabled
+isWifiConnected
+isWifiAvailable[Async]                  : 判断 wifi 数据是否可用
+getNetworkOperatorName
+getNetworkType
+getIPAddress[Async]                     : 获取 IP 地址
+getDomainAddress[Async]                 : 获取域名 IP 地址
+getIpAddressByWifi
+getGatewayByWifi
+getNetMaskByWifi
+getServerAddressByWifi
+registerNetworkStatusChangedListener
+isRegisteredNetworkStatusChangedListener
+unregisterNetworkStatusChangedListener
+getWifiScanResult
+addOnWifiChangedConsumer
+removeOnWifiChangedConsumer
+```
+
+* ### About Notification -> [NotificationUtils.java][notification.java] -> [Demo][notification.demo]
+```
+areNotificationsEnabled
+notify
+cancel
+cancelAll
+setNotificationBarVisibility
+```
+
+* ### About Number -> [NumberUtils.java][number.java] -> [Test][number.test]
+```
+format
+float2Double
+```
+
+* ### About Object -> [ObjectUtils.java][object.java] -> [Test][object.test]
+```
+isEmpty
+isNotEmpty
+equals
+compare
+requireNonNull(s)
+getOrDefault
+toString
+hashCode(s)
+```
+
+* ### About Path -> [PathUtils.java][path.java] -> [Demo][path.demo]
+```
+join
+getRootPath
+getDataPath
+getDownloadCachePath
+getInternalAppDataPath
+getInternalAppCodeCacheDir
+getInternalAppCachePath
+getInternalAppDbsPath
+getInternalAppDbPath
+getInternalAppFilesPath
+getInternalAppSpPath
+getInternalAppNoBackupFilesPath
+getExternalStoragePath
+getExternalMusicPath
+getExternalPodcastsPath
+getExternalRingtonesPath
+getExternalAlarmsPath
+getExternalNotificationsPath
+getExternalPicturesPath
+getExternalMoviesPath
+getExternalDownloadsPath
+getExternalDcimPath
+getExternalDocumentsPath
+getExternalAppDataPath
+getExternalAppCachePath
+getExternalAppFilesPath
+getExternalAppMusicPath
+getExternalAppPodcastsPath
+getExternalAppRingtonesPath
+getExternalAppAlarmsPath
+getExternalAppNotificationsPath
+getExternalAppPicturesPath
+getExternalAppMoviesPath
+getExternalAppDownloadPath
+getExternalAppDcimPath
+getExternalAppDocumentsPath
+getExternalAppObbPath
+getRootPathExternalFirst
+getAppDataPathExternalFirst
+getFilesPathExternalFirst
+getCachePathExternalFirst
+```
+
+* ### About Permission -> [PermissionUtils.java][permission.java] -> [Demo][permission.demo]
+```
+permission
+permissionGroup
+permission.explain
+permission.rationale
+permission.callback
+permission.theme
+permission.request
+getPermissions
+isGranted
+isGrantedWriteSettings
+requestWriteSettings
+isGrantedDrawOverlays
+requestDrawOverlays
+launchAppDetailsSettings
+```
+
+* ### About Phone -> [PhoneUtils.java][phone.java] -> [Demo][phone.demo]
+```
+isPhone
+getDeviceId
+getSerial
+getIMEI
+getMEID
+getIMSI
+getPhoneType
+isSimCardReady
+getSimOperatorName
+getSimOperatorByMnc
+dial
+call
+sendSms
+```
+
+* ### About Process -> [ProcessUtils.java][process.java] -> [Demo][process.demo]
+```
+getForegroundProcessName
+killAllBackgroundProcesses
+killBackgroundProcesses
+isMainProcess
+getCurrentProcessName
+```
+
+* ### About Reflect -> [ReflectUtils.java][reflect.java] -> [Test][reflect.test]
+```
+reflect
+newInstance
+field
+method
+get
+```
+
+* ### About Regex -> [RegexUtils.java][regex.java] -> [Test][regex.test]
+```
+isMobileSimple
+isMobileExact
+isTel
+isIDCard15
+isIDCard18
+isIDCard18Exact
+isEmail
+isURL
+isZh
+isUsername
+isDate
+isIP
+isMatch
+getMatches
+getSplits
+getReplaceFirst
+getReplaceAll
+RegexConstants.REGEX_DOUBLE_BYTE_CHAR
+RegexConstants.REGEX_BLANK_LINE
+RegexConstants.REGEX_QQ_NUM
+RegexConstants.REGEX_CHINA_POSTAL_CODE
+RegexConstants.REGEX_INTEGER
+RegexConstants.REGEX_POSITIVE_INTEGER
+RegexConstants.REGEX_NEGATIVE_INTEGER
+RegexConstants.REGEX_NOT_NEGATIVE_INTEGER
+RegexConstants.REGEX_NOT_POSITIVE_INTEGER
+RegexConstants.REGEX_FLOAT
+RegexConstants.REGEX_POSITIVE_FLOAT
+RegexConstants.REGEX_NEGATIVE_FLOAT
+RegexConstants.REGEX_NOT_NEGATIVE_FLOAT
+RegexConstants.REGEX_NOT_POSITIVE_FLOAT
+```
+
+* ### About Resource -> [ResourceUtils.java][resource.java] -> [Demo][resource.demo]
+```
+getDrawable
+getIdByName
+getStringIdByName
+getColorIdByName
+getDimenIdByName
+getDrawableIdByName
+getMipmapIdByName
+getLayoutIdByName
+getStyleIdByName
+getAnimIdByName
+getMenuIdByName
+copyFileFromAssets
+readAssets2String
+readAssets2List
+copyFileFromRaw
+readRaw2String
+readRaw2List
+```
+
+* ### About Rom -> [RomUtils.java][rom.java] -> [Demo][rom.demo]
+```
+isHuawei
+isVivo
+isXiaomi
+isOppo
+isLeeco
+is360
+isZte
+isOneplus
+isNubia
+isCoolpad
+isLg
+isGoogle
+isSamsung
+isMeizu
+isLenovo
+isSmartisan
+isHtc
+isSony
+isGionee
+isMotorola
+getRomInfo
+```
+
+* ### About Screen -> [ScreenUtils.java][screen.java] -> [Demo][screen.demo]
+```
+getScreenWidth
+getScreenHeight
+getAppScreenWidth
+getAppScreenHeight
+getScreenDensity
+getScreenDensityDpi
+setFullScreen
+setNonFullScreen
+toggleFullScreen
+isFullScreen
+setLandscape
+setPortrait
+isLandscape
+isPortrait
+getScreenRotation
+screenShot
+isScreenLock
+setSleepDuration
+getSleepDuration
+```
+
+* ### About SDCard -> [SDCardUtils.java][sdcard.java] -> [Demo][sdcard.demo]
+```
+isSDCardEnableByEnvironment
+getSDCardPathByEnvironment
+getSDCardInfo
+getMountedSDCardPath
+getExternalTotalSize
+getExternalAvailableSize
+getInternalTotalSize
+getInternalAvailableSize
+```
+
+* ### About Service -> [ServiceUtils.java][service.java]
+```
+getAllRunningServices
+startService
+stopService
+bindService
+unbindService
+isServiceRunning
+```
+
+* ### About Shadow -> [ShadowUtils.java][shadow.java] -> [Demo][shadow.demo]
+```
+apply
+```
+
+* ### About Shell -> [ShellUtils.java][shell.java]
+```
+execCmd[Async]: 执行命令
+```
+
+* ### About Size -> [SizeUtils.java][size.java]
+```
+dp2px, px2dp
+sp2px, px2sp
+applyDimension
+forceGetViewSize
+measureView
+getMeasuredWidth
+getMeasuredHeight
+```
+
+* ### About Snackbar -> [SnackbarUtils.java][snackbar.java] -> [Demo][snackbar.demo]
+```
+with
+setMessage
+setMessageColor
+setBgColor
+setBgResource
+setDuration
+setAction
+setBottomMargin
+show
+showSuccess
+showWarning
+showError
+dismiss
+getView
+addView
+```
+
+* ### About Span -> [SpanUtils.java][span.java] -> [Demo][span.demo]
+```
+with
+setFlag
+setForegroundColor
+setBackgroundColor
+setLineHeight
+setQuoteColor
+setLeadingMargin
+setBullet
+setFontSize
+setFontProportion
+setFontXProportion
+setStrikethrough
+setUnderline
+setSuperscript
+setSubscript
+setBold
+setItalic
+setBoldItalic
+setFontFamily
+setTypeface
+setAlign
+setClickSpan
+setUrl
+setBlur
+setShader
+setShadow
+setSpans
+append
+appendLine
+appendImage
+appendSpace
+create
+```
+
+* ### About SPStatic -> [SPStaticUtils.java][spStatic.java] -> [Demo][spStatic.demo]
+```
+setDefaultSPUtils
+put
+getString
+getInt
+getLong
+getFloat
+getBoolean
+getAll
+contains
+remove
+clear
+```
+
+* ### About SP -> [SPUtils.java][sp.java]
+```
+getInstance
+Instance.put
+Instance.getString
+Instance.getInt
+Instance.getLong
+Instance.getFloat
+Instance.getBoolean
+Instance.getAll
+Instance.contains
+Instance.remove
+Instance.clear
+```
+
+* ### About String -> [StringUtils.java][string.java] -> [Test][string.test]
+```
+isEmpty
+isTrimEmpty
+isSpace
+equals
+equalsIgnoreCase
+null2Length0
+length
+upperFirstLetter
+lowerFirstLetter
+reverse
+toDBC
+toSBC
+getString
+getStringArray
+format
+```
+
+* ### About Thread -> [ThreadUtils.java][thread.java] -> [Test][thread.test]
+```
+isMainThread
+getMainHandler
+runOnUiThread
+runOnUiThreadDelayed
+getFixedPool
+getSinglePool
+getCachedPool
+getIoPool
+getCpuPool
+executeByFixed
+executeByFixedWithDelay
+executeByFixedAtFixRate
+executeBySingle
+executeBySingleWithDelay
+executeBySingleAtFixRate
+executeByCached
+executeByCachedWithDelay
+executeByCachedAtFixRate
+executeByIo
+executeByIoWithDelay
+executeByIoAtFixRate
+executeByCpu
+executeByCpuWithDelay
+executeByCpuAtFixRate
+executeByCustom
+executeByCustomWithDelay
+executeByCustomAtFixRate
+cancel
+setDeliver
+```
+
+* ### About Time -> [TimeUtils.java][time.java] -> [Test][time.test]
+```
+getSafeDateFormat
+millis2String
+string2Millis
+string2Date
+date2String
+date2Millis
+millis2Date
+getTimeSpan
+getFitTimeSpan
+getNowMills
+getNowString
+getNowDate
+getTimeSpanByNow
+getFitTimeSpanByNow
+getFriendlyTimeSpanByNow
+getMillis
+getString
+getDate
+getMillisByNow
+getStringByNow
+getDateByNow
+isToday
+isLeapYear
+getChineseWeek
+getUSWeek
+isAm
+isPm
+getValueByCalendarField
+getChineseZodiac
+getZodiac
+```
+
+* ### About Toast -> [ToastUtils.java][toast.java] -> [Demo][toast.demo]
+```
+make
+make.setMode
+make.setGravity
+make.setBgColor
+make.setBgResource
+make.setTextColor
+make.setTextSize
+make.setDurationIsLong
+make.setLeftIcon
+make.setTopIcon
+make.setRightIcon
+make.setBottomIcon
+make.setNotUseSystemToast
+make.show
+getDefaultMaker
+showShort
+showLong
+cancel
+```
+
+* ### About Touch -> [TouchUtils.java][touch.java]
+```
+setOnTouchListener
+```
+
+* ### About UiMessage -> [UiMessageUtils.java][uiMessage.java] -> [Demo][uiMessage.demo]
+```
+send
+addListener
+removeListener
+```
+
+* ### About Uri -> [UriUtils.java][uri.java]
+```
+res2Uri
+file2Uri
+uri2File
+uri2FileNoCacheCopy
+uri2Bytes
+```
+
+* ### UtilsTransActivity -> [UtilsTransActivity.java][trans.java]
+```
+start
+```
+
+* ### UtilsTransActivity4MainProcess -> [UtilsTransActivity4MainProcess.java][trans4Main.java]
+```
+start
+```
+
+* ### About Vibrate -> [VibrateUtils.java][vibrate.java] -> [Demo][vibrate.demo]
+```
+vibrate
+cancel
+```
+
+* ### About View -> [ViewUtils.java][view.java]
+```
+setViewEnabled
+runOnUiThread
+runOnUiThreadDelayed
+isLayoutRtl
+fixScrollViewTopping
+layoutId2View
+```
+
+* ### About Volume -> [VolumeUtils.java][volume.java]
+```
+getVolume
+setVolume
+getMaxVolume
+getMinVolume
+```
+
+* ### About Zip -> [ZipUtils.java][zip.java] -> [Test][zip.test]
+```
+zipFiles
+zipFile
+unzipFile
+unzipFileByKeyword
+getFilesPath
+getComments
+```
+
+
+
+
+
+
+[activity.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
+[activity.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/activity/ActivityActivity.kt
+
+[adaptScreen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
+[adaptScreen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/adaptScreen/AdaptScreenActivity.kt
+
+[api.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ApiUtils.java
+[api.readme]: https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/api-gradle-plugin
+
+[app.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java
+[app.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/app/AppActivity.kt
+
+[array.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ArrayUtils.java
+[array.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ArrayUtilsTest.java
+
+[bar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java
+[bar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bar/BarActivity.kt
+
+[brightness.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/BrightnessUtils.java
+[brightness.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/brightness/BrightnessActivity.kt
+
+[bus.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/BusUtils.java
+[bus.readme]: https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/bus-gradle-plugin
+
+[cacheDiskStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskStaticUtils.java
+[cacheDiskStatic.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskStaticUtilsTest.java
+
+[cacheDisk.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
+[cacheDisk.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
+
+[cacheDoubleStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleStaticUtils.java
+[cacheDoubleStatic.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleStaticUtilsTest.java
+
+[cacheDouble.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
+[cacheDouble.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
+
+[cacheMemoryStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryStaticUtils.java
+[cacheMemoryStatic.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryStaticUtilsTest.java
+
+[cacheMemory.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
+[cacheMemory.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
+
+[clean.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java
+[clean.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clean/CleanActivity.kt
+
+[click.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClickUtils.java
+[click.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/click/ClickActivity.kt
+
+[clipboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClipboardUtils.java
+[clipboard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/clipboard/ClipboardActivity.kt
+
+[clone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloneUtils.java
+[clone.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CloneUtilsTest.java
+
+[close.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
+
+[collection.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CollectionUtils.java
+[collection.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/CollectionUtilsTest.java
+
+[color.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ColorUtils.java
+[color.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ColorUtilsTest.java
+
+[convert.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
+[convert.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
+
+[crash.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java
+
+[debouncing.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/DebouncingUtils.java
+
+[device.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
+[device.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/device/DeviceActivity.kt
+
+[empty.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/EmptyUtils.java
+[empty.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/EmptyUtilsTest.java
+
+[encode.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
+[encode.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
+
+[encrypt.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
+[encrypt.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
+
+[fileIo.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
+[fileIo.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java
+
+[file.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java
+[file.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
+
+[flashlight.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FlashlightUtils.java
+[flashlight.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/flashlight/FlashlightActivity.kt
+
+[fragment.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
+[fragment.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/fragment/FragmentActivity.kt
+
+[gson.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/GsonUtils.java
+[gson.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/GsonUtilsTest.java
+
+[image.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java
+[image.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/image/ImageActivity.kt
+
+[intent.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java
+
+[keyboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
+[keyboard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/keyboard/KeyboardActivity.kt
+
+[language.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/LanguageUtils.java
+[language.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/language/LanguageActivity.kt
+
+[log.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java
+[log.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/log/LogActivity.kt
+
+[map.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/MapUtils.java
+[map.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/MapUtilsTest.java
+
+[metaData.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
+[metaData.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/metaData/MetaDataActivity.kt
+
+[network.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
+[network.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/network/NetworkActivity.kt
+
+[notification.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java
+[notification.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt
+
+[number.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java
+[number.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java
+
+[object.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
+[object.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
+
+[path.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java
+[path.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/path/PathActivity.kt
+
+[permission.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
+[permission.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/permission/PermissionActivity.kt
+
+[phone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
+[phone.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/phone/PhoneActivity.kt
+
+[process.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
+[process.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/process/ProcessActivity.kt
+
+[reflect.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
+[reflect.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
+
+[regex.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
+[regex.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
+
+[resource.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
+[resource.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/resource/ResourceActivity.kt
+
+[rom.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
+[rom.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/rom/RomActivity.kt
+
+[screen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
+[screen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/screen/ScreenActivity.kt
+
+[sdcard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
+[sdcard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/sdcard/SDCardActivity.kt
+
+[service.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
+
+[shadow.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShadowUtils.java
+[shadow.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/shadow/ShadowActivity.kt
+
+[shell.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
+
+[size.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
+
+[snackbar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
+[snackbar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/snackbar/SnackbarActivity.kt
+
+[span.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
+[span.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/span/SpanActivity.kt
+
+[spStatic.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPStaticUtils.java
+[spStatic.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/spStatic/SPStaticActivity.kt
+
+[sp.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
+
+[string.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
+[string.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
+
+[thread.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
+[thread.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
+
+[time.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
+[time.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
+
+[toast.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java
+[toast.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/toast/ToastActivity.kt
+
+[touch.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/TouchUtils.java
+
+[uiMessage.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UiMessageUtils.java
+[uiMessage.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/uiMessage/UiMessageActivity.kt
+
+[uri.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java
+
+[trans.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity.java
+
+[trans4Main.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity4MainProcess.java
+
+[vibrate.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/VibrateUtils.java
+[vibrate.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/vibrate/VibrateActivity.kt
+
+[view.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ViewUtils.java
+
+[volume.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/VolumeUtils.java
+[volume.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/volume/VolumeActivity.kt
+
+[zip.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java
+[zip.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
diff --git a/lib/utilcode/build.gradle b/lib/utilcode/build.gradle
new file mode 100644
index 0000000000..37a43b0a66
--- /dev/null
+++ b/lib/utilcode/build.gradle
@@ -0,0 +1,47 @@
+apply {
+    plugin "readme-core"
+}
+
+readme {
+    readmeFile file('./README.md')
+    readmeCnFile file('./README-CN.md')
+}
+
+android {
+    compileSdkVersion Config.compileSdkVersion
+    defaultConfig {
+        minSdkVersion Config.minSdkVersion
+        versionCode Config.versionCode
+        versionName Config.versionName
+        consumerProguardFiles 'proguard-rules.pro'
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            consumerProguardFiles 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation Config.libs.gson.path
+
+    implementation Config.libs.androidx_appcompat.path
+    compileOnly Config.libs.androidx_material.path
+
+    testImplementation Config.libs.test_junit.path
+    testImplementation Config.libs.test_robolectric.path
+    testImplementation Config.libs.androidx_appcompat.path
+    testImplementation Config.libs.androidx_material.path
+    testImplementation Config.libs.eventbus_lib.path
+}
+
+ext {
+    groupId = Config.modules.lib_utilcode.groupId
+    artifactId = Config.modules.lib_utilcode.artifactId
+    version = Config.modules.lib_utilcode.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+apply from: "${rootDir.path}/config/publish.gradle"
\ No newline at end of file
diff --git a/lib/utilcode/proguard-rules.pro b/lib/utilcode/proguard-rules.pro
new file mode 100644
index 0000000000..b0df707115
--- /dev/null
+++ b/lib/utilcode/proguard-rules.pro
@@ -0,0 +1,28 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in G:\Android_IDE\ADT\sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+-dontwarn com.blankj.utilcode.**
+
+-keepclassmembers class * {
+    @com.blankj.utilcode.util.BusUtils$Bus <methods>;
+}
+
+-keep public class * extends com.blankj.utilcode.util.ApiUtils$BaseApi
+-keep,allowobfuscation @interface com.blankj.utilcode.util.ApiUtils$Api
+-keep @com.blankj.utilcode.util.ApiUtils$Api class *
+
+-keepattributes *Annotation*
\ No newline at end of file
diff --git a/lib/utilcode/src/main/AndroidManifest.xml b/lib/utilcode/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..ab497595d4
--- /dev/null
+++ b/lib/utilcode/src/main/AndroidManifest.xml
@@ -0,0 +1,48 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.utilcode">
+
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.MAIN" />
+        </intent>
+        <intent>
+            <action android:name="android.intent.action.VIEW" />
+        </intent>
+    </queries>
+
+    <application>
+
+        <activity
+            android:name="com.blankj.utilcode.util.UtilsTransActivity4MainProcess"
+            android:exported="false"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:theme="@style/ActivityTranslucent"
+            android:windowSoftInputMode="stateHidden|stateAlwaysHidden" />
+
+        <activity
+            android:name="com.blankj.utilcode.util.UtilsTransActivity"
+            android:exported="false"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:multiprocess="true"
+            android:theme="@style/ActivityTranslucent"
+            android:windowSoftInputMode="stateHidden|stateAlwaysHidden" />
+
+        <provider
+            android:name="com.blankj.utilcode.util.UtilsFileProvider"
+            android:authorities="${applicationId}.utilcode.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/util_code_provider_paths" />
+        </provider>
+
+        <service
+            android:name="com.blankj.utilcode.util.MessengerUtils$ServerService"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="${applicationId}.messenger" />
+            </intent-filter>
+        </service>
+    </application>
+</manifest>
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/CacheConstants.java b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/CacheConstants.java
similarity index 100%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/constant/CacheConstants.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/constant/CacheConstants.java
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/MemoryConstants.java b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/MemoryConstants.java
similarity index 93%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/constant/MemoryConstants.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/constant/MemoryConstants.java
index b68bfcb113..5c05c0163e 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/MemoryConstants.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/MemoryConstants.java
@@ -1,6 +1,6 @@
 package com.blankj.utilcode.constant;
 
-import android.support.annotation.IntDef;
+import androidx.annotation.IntDef;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/constant/PermissionConstants.java b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/PermissionConstants.java
new file mode 100644
index 0000000000..9298657483
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/PermissionConstants.java
@@ -0,0 +1,108 @@
+package com.blankj.utilcode.constant;
+
+import android.Manifest.permission;
+import android.annotation.SuppressLint;
+import android.os.Build;
+import androidx.annotation.StringDef;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/12/29
+ *     desc  : constants of permission
+ * </pre>
+ */
+@SuppressLint("InlinedApi")
+public final class PermissionConstants {
+
+    public static final String CALENDAR             = "CALENDAR";
+    public static final String CAMERA               = "CAMERA";
+    public static final String CONTACTS             = "CONTACTS";
+    public static final String LOCATION             = "LOCATION";
+    public static final String MICROPHONE           = "MICROPHONE";
+    public static final String PHONE                = "PHONE";
+    public static final String SENSORS              = "SENSORS";
+    public static final String SMS                  = "SMS";
+    public static final String STORAGE              = "STORAGE";
+    public static final String ACTIVITY_RECOGNITION = "ACTIVITY_RECOGNITION";
+
+    private static final String[] GROUP_CALENDAR             = {
+            permission.READ_CALENDAR, permission.WRITE_CALENDAR
+    };
+    private static final String[] GROUP_CAMERA               = {
+            permission.CAMERA
+    };
+    private static final String[] GROUP_CONTACTS             = {
+            permission.READ_CONTACTS, permission.WRITE_CONTACTS, permission.GET_ACCOUNTS
+    };
+    private static final String[] GROUP_LOCATION             = {
+            permission.ACCESS_FINE_LOCATION, permission.ACCESS_COARSE_LOCATION, permission.ACCESS_BACKGROUND_LOCATION
+    };
+    private static final String[] GROUP_MICROPHONE           = {
+            permission.RECORD_AUDIO
+    };
+    private static final String[] GROUP_PHONE                = {
+            permission.READ_PHONE_STATE, permission.READ_PHONE_NUMBERS, permission.CALL_PHONE,
+            permission.READ_CALL_LOG, permission.WRITE_CALL_LOG, permission.ADD_VOICEMAIL,
+            permission.USE_SIP, permission.PROCESS_OUTGOING_CALLS, permission.ANSWER_PHONE_CALLS
+    };
+    private static final String[] GROUP_PHONE_BELOW_O        = {
+            permission.READ_PHONE_STATE, permission.READ_PHONE_NUMBERS, permission.CALL_PHONE,
+            permission.READ_CALL_LOG, permission.WRITE_CALL_LOG, permission.ADD_VOICEMAIL,
+            permission.USE_SIP, permission.PROCESS_OUTGOING_CALLS
+    };
+    private static final String[] GROUP_SENSORS              = {
+            permission.BODY_SENSORS
+    };
+    private static final String[] GROUP_SMS                  = {
+            permission.SEND_SMS, permission.RECEIVE_SMS, permission.READ_SMS,
+            permission.RECEIVE_WAP_PUSH, permission.RECEIVE_MMS,
+    };
+    private static final String[] GROUP_STORAGE              = {
+            permission.READ_EXTERNAL_STORAGE, permission.WRITE_EXTERNAL_STORAGE,
+    };
+    private static final String[] GROUP_ACTIVITY_RECOGNITION = {
+            permission.ACTIVITY_RECOGNITION,
+    };
+
+    @StringDef({CALENDAR, CAMERA, CONTACTS, LOCATION, MICROPHONE, PHONE, SENSORS, SMS, STORAGE,})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface PermissionGroup {
+    }
+
+    public static String[] getPermissions(@PermissionGroup final String permission) {
+        if (permission == null) return new String[0];
+        switch (permission) {
+            case CALENDAR:
+                return GROUP_CALENDAR;
+            case CAMERA:
+                return GROUP_CAMERA;
+            case CONTACTS:
+                return GROUP_CONTACTS;
+            case LOCATION:
+                return GROUP_LOCATION;
+            case MICROPHONE:
+                return GROUP_MICROPHONE;
+            case PHONE:
+                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+                    return GROUP_PHONE_BELOW_O;
+                } else {
+                    return GROUP_PHONE;
+                }
+            case SENSORS:
+                return GROUP_SENSORS;
+            case SMS:
+                return GROUP_SMS;
+            case STORAGE:
+                return GROUP_STORAGE;
+            case ACTIVITY_RECOGNITION:
+                return GROUP_ACTIVITY_RECOGNITION;
+        }
+        return new String[]{permission};
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/RegexConstants.java b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/RegexConstants.java
similarity index 79%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/constant/RegexConstants.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/constant/RegexConstants.java
index 91ef0fbdd4..02618da72b 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/RegexConstants.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/RegexConstants.java
@@ -16,17 +16,18 @@ public final class RegexConstants {
     public static final String REGEX_MOBILE_SIMPLE = "^[1]\\d{10}$";
     /**
      * Regex of exact mobile.
-     * <p>china mobile: 134(0-8), 135, 136, 137, 138, 139, 147, 150, 151, 152, 157, 158, 159, 178, 182, 183, 184, 187, 188, 198</p>
-     * <p>china unicom: 130, 131, 132, 145, 155, 156, 166, 171, 175, 176, 185, 186</p>
-     * <p>china telecom: 133, 153, 173, 177, 180, 181, 189, 199</p>
+     * <p>china mobile: 134(0-8), 135, 136, 137, 138, 139, 147, 150, 151, 152, 157, 158, 159, 165, 172, 178, 182, 183, 184, 187, 188, 195, 197, 198</p>
+     * <p>china unicom: 130, 131, 132, 145, 155, 156, 166, 167, 175, 176, 185, 186, 196</p>
+     * <p>china telecom: 133, 149, 153, 162, 173, 177, 180, 181, 189, 190, 191, 199</p>
+     * <p>china broadcasting: 192</p>
      * <p>global star: 1349</p>
-     * <p>virtual operator: 170</p>
+     * <p>virtual operator: 170, 171</p>
      */
-    public static final String REGEX_MOBILE_EXACT  = "^((13[0-9])|(14[5,7])|(15[0-3,5-9])|(16[6])|(17[0,1,3,5-8])|(18[0-9])|(19[8,9]))\\d{8}$";
+    public static final String REGEX_MOBILE_EXACT  = "^((13[0-9])|(14[579])|(15[0-35-9])|(16[2567])|(17[0-35-8])|(18[0-9])|(19[0-35-9]))\\d{8}$";
     /**
      * Regex of telephone number.
      */
-    public static final String REGEX_TEL           = "^0\\d{2,3}[- ]?\\d{7,8}";
+    public static final String REGEX_TEL           = "^0\\d{2,3}[- ]?\\d{7,8}$";
     /**
      * Regex of id card number which length is 15.
      */
@@ -83,6 +84,10 @@ public final class RegexConstants {
      * Regex of postal code in China.
      */
     public static final String REGEX_CHINA_POSTAL_CODE    = "[1-9]\\d{5}(?!\\d)";
+    /**
+     * Regex of integer.
+     */
+    public static final String REGEX_INTEGER              = "^(-?[1-9]\\d*)|0$";
     /**
      * Regex of positive integer.
      */
@@ -91,10 +96,6 @@ public final class RegexConstants {
      * Regex of negative integer.
      */
     public static final String REGEX_NEGATIVE_INTEGER     = "^-[1-9]\\d*$";
-    /**
-     * Regex of integer.
-     */
-    public static final String REGEX_INTEGER              = "^-?[1-9]\\d*$";
     /**
      * Regex of non-negative integer.
      */
@@ -103,6 +104,10 @@ public final class RegexConstants {
      * Regex of non-positive integer.
      */
     public static final String REGEX_NOT_POSITIVE_INTEGER = "^-[1-9]\\d*|0$";
+    /**
+     * Regex of positive float.
+     */
+    public static final String REGEX_FLOAT                = "^-?([1-9]\\d*\\.\\d*|0\\.\\d*[1-9]\\d*|0?\\.0+|0)$";
     /**
      * Regex of positive float.
      */
@@ -111,6 +116,14 @@ public final class RegexConstants {
      * Regex of negative float.
      */
     public static final String REGEX_NEGATIVE_FLOAT       = "^-[1-9]\\d*\\.\\d*|-0\\.\\d*[1-9]\\d*$";
+    /**
+     * Regex of positive float.
+     */
+    public static final String REGEX_NOT_NEGATIVE_FLOAT   = "^[1-9]\\d*\\.\\d*|0\\.\\d*[1-9]\\d*|0?\\.0+|0$";
+    /**
+     * Regex of negative float.
+     */
+    public static final String REGEX_NOT_POSITIVE_FLOAT   = "^(-([1-9]\\d*\\.\\d*|0\\.\\d*[1-9]\\d*))|0?\\.0+|0$";
 
     ///////////////////////////////////////////////////////////////////////////
     // If u want more please visit http://toutiao.com/i6231678548520731137
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/TimeConstants.java b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/TimeConstants.java
similarity index 93%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/constant/TimeConstants.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/constant/TimeConstants.java
index 9932037bf8..45090576e3 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/TimeConstants.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/constant/TimeConstants.java
@@ -1,6 +1,6 @@
 package com.blankj.utilcode.constant;
 
-import android.support.annotation.IntDef;
+import androidx.annotation.IntDef;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
new file mode 100644
index 0000000000..d49ce6ff06
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
@@ -0,0 +1,2136 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.ContextWrapper;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.View;
+
+import java.lang.ref.WeakReference;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+import androidx.annotation.AnimRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.app.ActivityOptionsCompat;
+import androidx.core.util.Pair;
+import androidx.fragment.app.Fragment;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/23
+ *     desc  : utils about activity
+ * </pre>
+ */
+public final class ActivityUtils {
+
+    private ActivityUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Add callbacks of activity lifecycle.
+     *
+     * @param callbacks The callbacks.
+     */
+    public static void addActivityLifecycleCallbacks(@Nullable final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsBridge.addActivityLifecycleCallbacks(callbacks);
+    }
+
+    /**
+     * Add callbacks of activity lifecycle.
+     *
+     * @param activity  The activity.
+     * @param callbacks The callbacks.
+     */
+    public static void addActivityLifecycleCallbacks(@Nullable final Activity activity,
+                                                     @Nullable final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsBridge.addActivityLifecycleCallbacks(activity, callbacks);
+    }
+
+    /**
+     * Remove callbacks of activity lifecycle.
+     *
+     * @param callbacks The callbacks.
+     */
+    public static void removeActivityLifecycleCallbacks(@Nullable final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsBridge.removeActivityLifecycleCallbacks(callbacks);
+    }
+
+    /**
+     * Remove callbacks of activity lifecycle.
+     *
+     * @param activity The activity.
+     */
+    public static void removeActivityLifecycleCallbacks(@Nullable final Activity activity) {
+        UtilsBridge.removeActivityLifecycleCallbacks(activity);
+    }
+
+    /**
+     * Remove callbacks of activity lifecycle.
+     *
+     * @param activity  The activity.
+     * @param callbacks The callbacks.
+     */
+    public static void removeActivityLifecycleCallbacks(@Nullable final Activity activity,
+                                                        @Nullable final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsBridge.removeActivityLifecycleCallbacks(activity, callbacks);
+    }
+
+    /**
+     * Return the activity by context.
+     *
+     * @param context The context.
+     * @return the activity by context.
+     */
+    @Nullable
+    public static Activity getActivityByContext(@Nullable Context context) {
+        if (context == null) return null;
+        Activity activity = getActivityByContextInner(context);
+        if (!isActivityAlive(activity)) return null;
+        return activity;
+    }
+
+    @Nullable
+    private static Activity getActivityByContextInner(@Nullable Context context) {
+        if (context == null) return null;
+        List<Context> list = new ArrayList<>();
+        while (context instanceof ContextWrapper) {
+            if (context instanceof Activity) {
+                return (Activity) context;
+            }
+            Activity activity = getActivityFromDecorContext(context);
+            if (activity != null) return activity;
+            list.add(context);
+            context = ((ContextWrapper) context).getBaseContext();
+            if (context == null) {
+                return null;
+            }
+            if (list.contains(context)) {
+                // loop context
+                return null;
+            }
+        }
+        return null;
+    }
+
+    @Nullable
+    private static Activity getActivityFromDecorContext(@Nullable Context context) {
+        if (context == null) return null;
+        if (context.getClass().getName().equals("com.android.internal.policy.DecorContext")) {
+            try {
+                Field mActivityContextField = context.getClass().getDeclaredField("mActivityContext");
+                mActivityContextField.setAccessible(true);
+                //noinspection ConstantConditions,unchecked
+                return ((WeakReference<Activity>) mActivityContextField.get(context)).get();
+            } catch (Exception ignore) {
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Return whether the activity exists.
+     *
+     * @param pkg The name of the package.
+     * @param cls The name of the class.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isActivityExists(@NonNull final String pkg,
+                                           @NonNull final String cls) {
+        Intent intent = new Intent();
+        intent.setClassName(pkg, cls);
+        PackageManager pm = Utils.getApp().getPackageManager();
+        return !(pm.resolveActivity(intent, 0) == null ||
+                intent.resolveActivity(pm) == null ||
+                pm.queryIntentActivities(intent, 0).size() == 0);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param clz The activity class.
+     */
+    public static void startActivity(@NonNull final Class<? extends Activity> clz) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, null, context.getPackageName(), clz.getName(), null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param clz     The activity class.
+     * @param options Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Class<? extends Activity> clz,
+                                     @Nullable final Bundle options) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, null, context.getPackageName(), clz.getName(), options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param clz       The activity class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Class<? extends Activity> clz,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, null, context.getPackageName(), clz.getName(),
+                getOptionsBundle(context, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
+            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param clz      The activity class.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz) {
+        startActivity(activity, null, activity.getPackageName(), clz.getName(), null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param clz      The activity class.
+     * @param options  Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     @Nullable final Bundle options) {
+        startActivity(activity, null, activity.getPackageName(), clz.getName(), options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity       The activity.
+     * @param clz            The activity class.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     final View... sharedElements) {
+        startActivity(activity, null, activity.getPackageName(), clz.getName(),
+                getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity  The activity.
+     * @param clz       The activity class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        startActivity(activity, null, activity.getPackageName(), clz.getName(),
+                getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras The Bundle of extras to add to this intent.
+     * @param clz    The activity class.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Class<? extends Activity> clz) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, extras, context.getPackageName(), clz.getName(), null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras  The Bundle of extras to add to this intent.
+     * @param clz     The activity class.
+     * @param options Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     @Nullable final Bundle options) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, extras, context.getPackageName(), clz.getName(), options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras    The Bundle of extras to add to this intent.
+     * @param clz       The activity class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, extras, context.getPackageName(), clz.getName(),
+                getOptionsBundle(context, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
+            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras   The Bundle of extras to add to this intent.
+     * @param activity The activity.
+     * @param clz      The activity class.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz) {
+        startActivity(activity, extras, activity.getPackageName(), clz.getName(), null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras   The Bundle of extras to add to this intent.
+     * @param activity The activity.
+     * @param clz      The activity class.
+     * @param options  Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     @Nullable final Bundle options) {
+        startActivity(activity, extras, activity.getPackageName(), clz.getName(), options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras         The Bundle of extras to add to this intent.
+     * @param activity       The activity.
+     * @param clz            The activity class.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     final View... sharedElements) {
+        startActivity(activity, extras, activity.getPackageName(), clz.getName(),
+                getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras    The Bundle of extras to add to this intent.
+     * @param activity  The activity.
+     * @param clz       The activity class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final Class<? extends Activity> clz,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        startActivity(activity, extras, activity.getPackageName(), clz.getName(),
+                getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param pkg The name of the package.
+     * @param cls The name of the class.
+     */
+    public static void startActivity(@NonNull final String pkg,
+                                     @NonNull final String cls) {
+        startActivity(getTopActivityOrApp(), null, pkg, cls, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param pkg     The name of the package.
+     * @param cls     The name of the class.
+     * @param options Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @Nullable final Bundle options) {
+        startActivity(getTopActivityOrApp(), null, pkg, cls, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param pkg       The name of the package.
+     * @param cls       The name of the class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, null, pkg, cls, getOptionsBundle(context, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
+            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param pkg      The name of the package.
+     * @param cls      The name of the class.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls) {
+        startActivity(activity, null, pkg, cls, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param pkg      The name of the package.
+     * @param cls      The name of the class.
+     * @param options  Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @Nullable final Bundle options) {
+        startActivity(activity, null, pkg, cls, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity       The activity.
+     * @param pkg            The name of the package.
+     * @param cls            The name of the class.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     final View... sharedElements) {
+        startActivity(activity, null, pkg, cls, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity  The activity.
+     * @param pkg       The name of the package.
+     * @param cls       The name of the class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        startActivity(activity, null, pkg, cls, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras The Bundle of extras to add to this intent.
+     * @param pkg    The name of the package.
+     * @param cls    The name of the class.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls) {
+        startActivity(getTopActivityOrApp(), extras, pkg, cls, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras  The Bundle of extras to add to this intent.
+     * @param pkg     The name of the package.
+     * @param cls     The name of the class.
+     * @param options Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @Nullable final Bundle options) {
+        startActivity(getTopActivityOrApp(), extras, pkg, cls, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras    The Bundle of extras to add to this intent.
+     * @param pkg       The name of the package.
+     * @param cls       The name of the class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        Context context = getTopActivityOrApp();
+        startActivity(context, extras, pkg, cls, getOptionsBundle(context, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
+            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param extras   The Bundle of extras to add to this intent.
+     * @param pkg      The name of the package.
+     * @param cls      The name of the class.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls) {
+        startActivity(activity, extras, pkg, cls, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras   The Bundle of extras to add to this intent.
+     * @param activity The activity.
+     * @param pkg      The name of the package.
+     * @param cls      The name of the class.
+     * @param options  Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @Nullable final Bundle options) {
+        startActivity(activity, extras, pkg, cls, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras         The Bundle of extras to add to this intent.
+     * @param activity       The activity.
+     * @param pkg            The name of the package.
+     * @param cls            The name of the class.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     final View... sharedElements) {
+        startActivity(activity, extras, pkg, cls, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras    The Bundle of extras to add to this intent.
+     * @param pkg       The name of the package.
+     * @param cls       The name of the class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Bundle extras,
+                                     @NonNull final Activity activity,
+                                     @NonNull final String pkg,
+                                     @NonNull final String cls,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        startActivity(activity, extras, pkg, cls, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param intent The description of the activity to start.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean startActivity(@NonNull final Intent intent) {
+        return startActivity(intent, getTopActivityOrApp(), null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param intent  The description of the activity to start.
+     * @param options Additional options for how the Activity should be started.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean startActivity(@NonNull final Intent intent,
+                                        @Nullable final Bundle options) {
+        return startActivity(intent, getTopActivityOrApp(), options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param intent    The description of the activity to start.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean startActivity(@NonNull final Intent intent,
+                                        @AnimRes final int enterAnim,
+                                        @AnimRes final int exitAnim) {
+        Context context = getTopActivityOrApp();
+        boolean isSuccess = startActivity(intent, context, getOptionsBundle(context, enterAnim, exitAnim));
+        if (isSuccess) {
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
+                ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
+            }
+        }
+        return isSuccess;
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param intent   The description of the activity to start.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Intent intent) {
+        startActivity(intent, activity, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity The activity.
+     * @param intent   The description of the activity to start.
+     * @param options  Additional options for how the Activity should be started.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Intent intent,
+                                     @Nullable final Bundle options) {
+        startActivity(intent, activity, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity       The activity.
+     * @param intent         The description of the activity to start.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Intent intent,
+                                     final View... sharedElements) {
+        startActivity(intent, activity, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity  The activity.
+     * @param intent    The description of the activity to start.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivity(@NonNull final Activity activity,
+                                     @NonNull final Intent intent,
+                                     @AnimRes final int enterAnim,
+                                     @AnimRes final int exitAnim) {
+        startActivity(intent, activity, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity    The activity.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode) {
+        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
+                requestCode, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity    The activity.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
+                requestCode, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity       The activity.
+     * @param clz            The activity class.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param activity    The activity.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param activity    The activity.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode) {
+        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
+                requestCode, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param activity    The activity.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
+                requestCode, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras         The Bundle of extras to add to this intent.
+     * @param activity       The activity.
+     * @param clz            The activity class.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param activity    The activity.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param activity    The activity.
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param pkg         The name of the package.
+     * @param cls         The name of the class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode) {
+        startActivityForResult(activity, extras, pkg, cls, requestCode, null);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param activity    The activity.
+     * @param pkg         The name of the package.
+     * @param cls         The name of the class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(activity, extras, pkg, cls, requestCode, options);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param extras         The Bundle of extras to add to this intent.
+     * @param activity       The activity.
+     * @param pkg            The name of the package.
+     * @param cls            The name of the class.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(activity, extras, pkg, cls,
+                requestCode, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param pkg         The name of the package.
+     * @param cls         The name of the class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Activity activity,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(activity, extras, pkg, cls,
+                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param activity    The activity.
+     * @param intent      The description of the activity to start.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Intent intent,
+                                              final int requestCode) {
+        startActivityForResult(intent, activity, requestCode, null);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param activity    The activity.
+     * @param intent      The description of the activity to start.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Intent intent,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(intent, activity, requestCode, options);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param activity       The activity.
+     * @param intent         The description of the activity to start.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Intent intent,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(intent, activity,
+                requestCode, getOptionsBundle(activity, sharedElements));
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param activity    The activity.
+     * @param intent      The description of the activity to start.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Activity activity,
+                                              @NonNull final Intent intent,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(intent, activity,
+                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param fragment    The fragment.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode) {
+        startActivityForResult(fragment, null, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param fragment    The fragment.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(fragment, null, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param fragment       The fragment.
+     * @param clz            The activity class.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(fragment, null, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(fragment, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param fragment    The fragment.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(fragment, null, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(fragment, enterAnim, exitAnim));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param fragment    The fragment.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode) {
+        startActivityForResult(fragment, extras, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, null);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param fragment    The fragment.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(fragment, extras, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, options);
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras         The Bundle of extras to add to this intent.
+     * @param fragment       The fragment.
+     * @param clz            The activity class.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(fragment, extras, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(fragment, sharedElements));
+    }
+
+    /**
+     * Start the activity.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param fragment    The fragment.
+     * @param clz         The activity class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final Class<? extends Activity> clz,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(fragment, extras, Utils.getApp().getPackageName(), clz.getName(),
+                requestCode, getOptionsBundle(fragment, enterAnim, exitAnim));
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param fragment    The fragment.
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param pkg         The name of the package.
+     * @param cls         The name of the class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode) {
+        startActivityForResult(fragment, extras, pkg, cls, requestCode, null);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param fragment    The fragment.
+     * @param pkg         The name of the package.
+     * @param cls         The name of the class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(fragment, extras, pkg, cls, requestCode, options);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param extras         The Bundle of extras to add to this intent.
+     * @param fragment       The fragment.
+     * @param pkg            The name of the package.
+     * @param cls            The name of the class.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(fragment, extras, pkg, cls,
+                requestCode, getOptionsBundle(fragment, sharedElements));
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param extras      The Bundle of extras to add to this intent.
+     * @param pkg         The name of the package.
+     * @param cls         The name of the class.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Bundle extras,
+                                              @NonNull final Fragment fragment,
+                                              @NonNull final String pkg,
+                                              @NonNull final String cls,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(fragment, extras, pkg, cls,
+                requestCode, getOptionsBundle(fragment, enterAnim, exitAnim));
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param fragment    The fragment.
+     * @param intent      The description of the activity to start.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Intent intent,
+                                              final int requestCode) {
+        startActivityForResult(intent, fragment, requestCode, null);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param fragment    The fragment.
+     * @param intent      The description of the activity to start.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param options     Additional options for how the Activity should be started.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Intent intent,
+                                              final int requestCode,
+                                              @Nullable final Bundle options) {
+        startActivityForResult(intent, fragment, requestCode, options);
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param fragment       The fragment.
+     * @param intent         The description of the activity to start.
+     * @param requestCode    if &gt;= 0, this code will be returned in
+     *                       onActivityResult() when the activity exits.
+     * @param sharedElements The names of the shared elements to transfer to the called
+     *                       Activity and their associated Views.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Intent intent,
+                                              final int requestCode,
+                                              final View... sharedElements) {
+        startActivityForResult(intent, fragment,
+                requestCode, getOptionsBundle(fragment, sharedElements));
+    }
+
+    /**
+     * Start the activity for result.
+     *
+     * @param fragment    The fragment.
+     * @param intent      The description of the activity to start.
+     * @param requestCode if &gt;= 0, this code will be returned in
+     *                    onActivityResult() when the activity exits.
+     * @param enterAnim   A resource ID of the animation resource to use for the
+     *                    incoming activity.
+     * @param exitAnim    A resource ID of the animation resource to use for the
+     *                    outgoing activity.
+     */
+    public static void startActivityForResult(@NonNull final Fragment fragment,
+                                              @NonNull final Intent intent,
+                                              final int requestCode,
+                                              @AnimRes final int enterAnim,
+                                              @AnimRes final int exitAnim) {
+        startActivityForResult(intent, fragment,
+                requestCode, getOptionsBundle(fragment, enterAnim, exitAnim));
+    }
+
+    /**
+     * Start activities.
+     *
+     * @param intents The descriptions of the activities to start.
+     */
+    public static void startActivities(@NonNull final Intent[] intents) {
+        startActivities(intents, getTopActivityOrApp(), null);
+    }
+
+    /**
+     * Start activities.
+     *
+     * @param intents The descriptions of the activities to start.
+     * @param options Additional options for how the Activity should be started.
+     */
+    public static void startActivities(@NonNull final Intent[] intents,
+                                       @Nullable final Bundle options) {
+        startActivities(intents, getTopActivityOrApp(), options);
+    }
+
+    /**
+     * Start activities.
+     *
+     * @param intents   The descriptions of the activities to start.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivities(@NonNull final Intent[] intents,
+                                       @AnimRes final int enterAnim,
+                                       @AnimRes final int exitAnim) {
+        Context context = getTopActivityOrApp();
+        startActivities(intents, context, getOptionsBundle(context, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
+            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start activities.
+     *
+     * @param activity The activity.
+     * @param intents  The descriptions of the activities to start.
+     */
+    public static void startActivities(@NonNull final Activity activity,
+                                       @NonNull final Intent[] intents) {
+        startActivities(intents, activity, null);
+    }
+
+    /**
+     * Start activities.
+     *
+     * @param activity The activity.
+     * @param intents  The descriptions of the activities to start.
+     * @param options  Additional options for how the Activity should be started.
+     */
+    public static void startActivities(@NonNull final Activity activity,
+                                       @NonNull final Intent[] intents,
+                                       @Nullable final Bundle options) {
+        startActivities(intents, activity, options);
+    }
+
+    /**
+     * Start activities.
+     *
+     * @param activity  The activity.
+     * @param intents   The descriptions of the activities to start.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void startActivities(@NonNull final Activity activity,
+                                       @NonNull final Intent[] intents,
+                                       @AnimRes final int enterAnim,
+                                       @AnimRes final int exitAnim) {
+        startActivities(intents, activity, getOptionsBundle(activity, enterAnim, exitAnim));
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            activity.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Start home activity.
+     */
+    public static void startHomeActivity() {
+        Intent homeIntent = new Intent(Intent.ACTION_MAIN);
+        homeIntent.addCategory(Intent.CATEGORY_HOME);
+        homeIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        startActivity(homeIntent);
+    }
+
+    /**
+     * Start the launcher activity.
+     */
+    public static void startLauncherActivity() {
+        startLauncherActivity(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Start the launcher activity.
+     *
+     * @param pkg The name of the package.
+     */
+    public static void startLauncherActivity(@NonNull final String pkg) {
+        String launcherActivity = getLauncherActivity(pkg);
+        if (TextUtils.isEmpty(launcherActivity)) return;
+        startActivity(pkg, launcherActivity);
+    }
+
+    /**
+     * Return the list of activity.
+     *
+     * @return the list of activity
+     */
+    public static List<Activity> getActivityList() {
+        return UtilsBridge.getActivityList();
+    }
+
+    /**
+     * Return the name of launcher activity.
+     *
+     * @return the name of launcher activity
+     */
+    public static String getLauncherActivity() {
+        return getLauncherActivity(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the name of launcher activity.
+     *
+     * @param pkg The name of the package.
+     * @return the name of launcher activity
+     */
+    public static String getLauncherActivity(@NonNull final String pkg) {
+        if (UtilsBridge.isSpace(pkg)) return "";
+        Intent intent = new Intent(Intent.ACTION_MAIN, null);
+        intent.addCategory(Intent.CATEGORY_LAUNCHER);
+        intent.setPackage(pkg);
+        PackageManager pm = Utils.getApp().getPackageManager();
+        List<ResolveInfo> info = pm.queryIntentActivities(intent, 0);
+        if (info == null || info.size() == 0) {
+            return "";
+        }
+        return info.get(0).activityInfo.name;
+    }
+
+    /**
+     * Return the list of main activities.
+     *
+     * @return the list of main activities
+     */
+    public static List<String> getMainActivities() {
+        return getMainActivities(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the list of main activities.
+     *
+     * @param pkg The name of the package.
+     * @return the list of main activities
+     */
+    public static List<String> getMainActivities(@NonNull final String pkg) {
+        List<String> ret = new ArrayList<>();
+        Intent intent = new Intent(Intent.ACTION_MAIN, null);
+        intent.setPackage(pkg);
+        PackageManager pm = Utils.getApp().getPackageManager();
+        List<ResolveInfo> info = pm.queryIntentActivities(intent, 0);
+        int size = info.size();
+        if (size == 0) return ret;
+        for (int i = 0; i < size; i++) {
+            ResolveInfo ri = info.get(i);
+            if (ri.activityInfo.processName.equals(pkg)) {
+                ret.add(ri.activityInfo.name);
+            }
+        }
+        return ret;
+    }
+
+    /**
+     * Return the top activity in activity's stack.
+     *
+     * @return the top activity in activity's stack
+     */
+    public static Activity getTopActivity() {
+        return UtilsBridge.getTopActivity();
+    }
+
+    /**
+     * Return whether the activity is alive.
+     *
+     * @param context The context.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isActivityAlive(final Context context) {
+        return isActivityAlive(getActivityByContext(context));
+    }
+
+    /**
+     * Return whether the activity is alive.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isActivityAlive(final Activity activity) {
+        return activity != null && !activity.isFinishing()
+                && (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !activity.isDestroyed());
+    }
+
+    /**
+     * Return whether the activity exists in activity's stack.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isActivityExistsInStack(@NonNull final Activity activity) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity aActivity : activities) {
+            if (aActivity.equals(activity)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Return whether the activity exists in activity's stack.
+     *
+     * @param clz The activity class.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isActivityExistsInStack(@NonNull final Class<? extends Activity> clz) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity aActivity : activities) {
+            if (aActivity.getClass().equals(clz)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Finish the activity.
+     *
+     * @param activity The activity.
+     */
+    public static void finishActivity(@NonNull final Activity activity) {
+        finishActivity(activity, false);
+    }
+
+    /**
+     * Finish the activity.
+     *
+     * @param activity   The activity.
+     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
+     */
+    public static void finishActivity(@NonNull final Activity activity, final boolean isLoadAnim) {
+        activity.finish();
+        if (!isLoadAnim) {
+            activity.overridePendingTransition(0, 0);
+        }
+    }
+
+    /**
+     * Finish the activity.
+     *
+     * @param activity  The activity.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void finishActivity(@NonNull final Activity activity,
+                                      @AnimRes final int enterAnim,
+                                      @AnimRes final int exitAnim) {
+        activity.finish();
+        activity.overridePendingTransition(enterAnim, exitAnim);
+    }
+
+    /**
+     * Finish the activity.
+     *
+     * @param clz The activity class.
+     */
+    public static void finishActivity(@NonNull final Class<? extends Activity> clz) {
+        finishActivity(clz, false);
+    }
+
+    /**
+     * Finish the activity.
+     *
+     * @param clz        The activity class.
+     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
+     */
+    public static void finishActivity(@NonNull final Class<? extends Activity> clz,
+                                      final boolean isLoadAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity activity : activities) {
+            if (activity.getClass().equals(clz)) {
+                activity.finish();
+                if (!isLoadAnim) {
+                    activity.overridePendingTransition(0, 0);
+                }
+            }
+        }
+    }
+
+    /**
+     * Finish the activity.
+     *
+     * @param clz       The activity class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void finishActivity(@NonNull final Class<? extends Activity> clz,
+                                      @AnimRes final int enterAnim,
+                                      @AnimRes final int exitAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity activity : activities) {
+            if (activity.getClass().equals(clz)) {
+                activity.finish();
+                activity.overridePendingTransition(enterAnim, exitAnim);
+            }
+        }
+    }
+
+    /**
+     * Finish to the activity.
+     *
+     * @param activity      The activity.
+     * @param isIncludeSelf True to include the activity, false otherwise.
+     */
+    public static boolean finishToActivity(@NonNull final Activity activity,
+                                           final boolean isIncludeSelf) {
+        return finishToActivity(activity, isIncludeSelf, false);
+    }
+
+    /**
+     * Finish to the activity.
+     *
+     * @param activity      The activity.
+     * @param isIncludeSelf True to include the activity, false otherwise.
+     * @param isLoadAnim    True to use animation for the outgoing activity, false otherwise.
+     */
+    public static boolean finishToActivity(@NonNull final Activity activity,
+                                           final boolean isIncludeSelf,
+                                           final boolean isLoadAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity act : activities) {
+            if (act.equals(activity)) {
+                if (isIncludeSelf) {
+                    finishActivity(act, isLoadAnim);
+                }
+                return true;
+            }
+            finishActivity(act, isLoadAnim);
+        }
+        return false;
+    }
+
+    /**
+     * Finish to the activity.
+     *
+     * @param activity      The activity.
+     * @param isIncludeSelf True to include the activity, false otherwise.
+     * @param enterAnim     A resource ID of the animation resource to use for the
+     *                      incoming activity.
+     * @param exitAnim      A resource ID of the animation resource to use for the
+     *                      outgoing activity.
+     */
+    public static boolean finishToActivity(@NonNull final Activity activity,
+                                           final boolean isIncludeSelf,
+                                           @AnimRes final int enterAnim,
+                                           @AnimRes final int exitAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity act : activities) {
+            if (act.equals(activity)) {
+                if (isIncludeSelf) {
+                    finishActivity(act, enterAnim, exitAnim);
+                }
+                return true;
+            }
+            finishActivity(act, enterAnim, exitAnim);
+        }
+        return false;
+    }
+
+    /**
+     * Finish to the activity.
+     *
+     * @param clz           The activity class.
+     * @param isIncludeSelf True to include the activity, false otherwise.
+     */
+    public static boolean finishToActivity(@NonNull final Class<? extends Activity> clz,
+                                           final boolean isIncludeSelf) {
+        return finishToActivity(clz, isIncludeSelf, false);
+    }
+
+    /**
+     * Finish to the activity.
+     *
+     * @param clz           The activity class.
+     * @param isIncludeSelf True to include the activity, false otherwise.
+     * @param isLoadAnim    True to use animation for the outgoing activity, false otherwise.
+     */
+    public static boolean finishToActivity(@NonNull final Class<? extends Activity> clz,
+                                           final boolean isIncludeSelf,
+                                           final boolean isLoadAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity act : activities) {
+            if (act.getClass().equals(clz)) {
+                if (isIncludeSelf) {
+                    finishActivity(act, isLoadAnim);
+                }
+                return true;
+            }
+            finishActivity(act, isLoadAnim);
+        }
+        return false;
+    }
+
+    /**
+     * Finish to the activity.
+     *
+     * @param clz           The activity class.
+     * @param isIncludeSelf True to include the activity, false otherwise.
+     * @param enterAnim     A resource ID of the animation resource to use for the
+     *                      incoming activity.
+     * @param exitAnim      A resource ID of the animation resource to use for the
+     *                      outgoing activity.
+     */
+    public static boolean finishToActivity(@NonNull final Class<? extends Activity> clz,
+                                           final boolean isIncludeSelf,
+                                           @AnimRes final int enterAnim,
+                                           @AnimRes final int exitAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity act : activities) {
+            if (act.getClass().equals(clz)) {
+                if (isIncludeSelf) {
+                    finishActivity(act, enterAnim, exitAnim);
+                }
+                return true;
+            }
+            finishActivity(act, enterAnim, exitAnim);
+        }
+        return false;
+    }
+
+    /**
+     * Finish the activities whose type not equals the activity class.
+     *
+     * @param clz The activity class.
+     */
+    public static void finishOtherActivities(@NonNull final Class<? extends Activity> clz) {
+        finishOtherActivities(clz, false);
+    }
+
+
+    /**
+     * Finish the activities whose type not equals the activity class.
+     *
+     * @param clz        The activity class.
+     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
+     */
+    public static void finishOtherActivities(@NonNull final Class<? extends Activity> clz,
+                                             final boolean isLoadAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity act : activities) {
+            if (!act.getClass().equals(clz)) {
+                finishActivity(act, isLoadAnim);
+            }
+        }
+    }
+
+    /**
+     * Finish the activities whose type not equals the activity class.
+     *
+     * @param clz       The activity class.
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void finishOtherActivities(@NonNull final Class<? extends Activity> clz,
+                                             @AnimRes final int enterAnim,
+                                             @AnimRes final int exitAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (Activity act : activities) {
+            if (!act.getClass().equals(clz)) {
+                finishActivity(act, enterAnim, exitAnim);
+            }
+        }
+    }
+
+    /**
+     * Finish all of activities.
+     */
+    public static void finishAllActivities() {
+        finishAllActivities(false);
+    }
+
+    /**
+     * Finish all of activities.
+     *
+     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
+     */
+    public static void finishAllActivities(final boolean isLoadAnim) {
+        List<Activity> activityList = UtilsBridge.getActivityList();
+        for (Activity act : activityList) {
+            // sActivityList remove the index activity at onActivityDestroyed
+            act.finish();
+            if (!isLoadAnim) {
+                act.overridePendingTransition(0, 0);
+            }
+        }
+    }
+
+    /**
+     * Finish all of activities.
+     *
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void finishAllActivities(@AnimRes final int enterAnim,
+                                           @AnimRes final int exitAnim) {
+        List<Activity> activityList = UtilsBridge.getActivityList();
+        for (Activity act : activityList) {
+            // sActivityList remove the index activity at onActivityDestroyed
+            act.finish();
+            act.overridePendingTransition(enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Finish all of activities except the newest activity.
+     */
+    public static void finishAllActivitiesExceptNewest() {
+        finishAllActivitiesExceptNewest(false);
+    }
+
+    /**
+     * Finish all of activities except the newest activity.
+     *
+     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
+     */
+    public static void finishAllActivitiesExceptNewest(final boolean isLoadAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (int i = 1; i < activities.size(); i++) {
+            finishActivity(activities.get(i), isLoadAnim);
+        }
+    }
+
+    /**
+     * Finish all of activities except the newest activity.
+     *
+     * @param enterAnim A resource ID of the animation resource to use for the
+     *                  incoming activity.
+     * @param exitAnim  A resource ID of the animation resource to use for the
+     *                  outgoing activity.
+     */
+    public static void finishAllActivitiesExceptNewest(@AnimRes final int enterAnim,
+                                                       @AnimRes final int exitAnim) {
+        List<Activity> activities = UtilsBridge.getActivityList();
+        for (int i = 1; i < activities.size(); i++) {
+            finishActivity(activities.get(i), enterAnim, exitAnim);
+        }
+    }
+
+    /**
+     * Return the icon of activity.
+     *
+     * @param activity The activity.
+     * @return the icon of activity
+     */
+    @Nullable
+    public static Drawable getActivityIcon(@NonNull final Activity activity) {
+        return getActivityIcon(activity.getComponentName());
+    }
+
+    /**
+     * Return the icon of activity.
+     *
+     * @param clz The activity class.
+     * @return the icon of activity
+     */
+    @Nullable
+    public static Drawable getActivityIcon(@NonNull final Class<? extends Activity> clz) {
+        return getActivityIcon(new ComponentName(Utils.getApp(), clz));
+    }
+
+    /**
+     * Return the icon of activity.
+     *
+     * @param activityName The name of activity.
+     * @return the icon of activity
+     */
+    @Nullable
+    public static Drawable getActivityIcon(@NonNull final ComponentName activityName) {
+        PackageManager pm = Utils.getApp().getPackageManager();
+        try {
+            return pm.getActivityIcon(activityName);
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Return the logo of activity.
+     *
+     * @param activity The activity.
+     * @return the logo of activity
+     */
+    @Nullable
+    public static Drawable getActivityLogo(@NonNull final Activity activity) {
+        return getActivityLogo(activity.getComponentName());
+    }
+
+    /**
+     * Return the logo of activity.
+     *
+     * @param clz The activity class.
+     * @return the logo of activity
+     */
+    @Nullable
+    public static Drawable getActivityLogo(@NonNull final Class<? extends Activity> clz) {
+        return getActivityLogo(new ComponentName(Utils.getApp(), clz));
+    }
+
+    /**
+     * Return the logo of activity.
+     *
+     * @param activityName The name of activity.
+     * @return the logo of activity
+     */
+    @Nullable
+    public static Drawable getActivityLogo(@NonNull final ComponentName activityName) {
+        PackageManager pm = Utils.getApp().getPackageManager();
+        try {
+            return pm.getActivityLogo(activityName);
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private static void startActivity(final Context context,
+                                      final Bundle extras,
+                                      final String pkg,
+                                      final String cls,
+                                      @Nullable final Bundle options) {
+        Intent intent = new Intent();
+        if (extras != null) intent.putExtras(extras);
+        intent.setComponent(new ComponentName(pkg, cls));
+        startActivity(intent, context, options);
+    }
+
+    private static boolean startActivity(final Intent intent,
+                                         final Context context,
+                                         final Bundle options) {
+        if (!(context instanceof Activity)) {
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        }
+        try {
+            if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                context.startActivity(intent, options);
+            } else {
+                context.startActivity(intent);
+            }
+        } catch (Exception e) {
+            Log.e("ActivityUtils", "An exception occurred in startActivity, error message: " + e.getLocalizedMessage());
+            return false;
+        }
+        return true;
+    }
+
+    private static boolean startActivityForResult(final Activity activity,
+                                                  final Bundle extras,
+                                                  final String pkg,
+                                                  final String cls,
+                                                  final int requestCode,
+                                                  @Nullable final Bundle options) {
+        Intent intent = new Intent();
+        if (extras != null) intent.putExtras(extras);
+        intent.setComponent(new ComponentName(pkg, cls));
+        return startActivityForResult(intent, activity, requestCode, options);
+    }
+
+    private static boolean startActivityForResult(final Intent intent,
+                                                  final Activity activity,
+                                                  final int requestCode,
+                                                  @Nullable final Bundle options) {
+        try {
+            if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                activity.startActivityForResult(intent, requestCode, options);
+            } else {
+                activity.startActivityForResult(intent, requestCode);
+            }
+        } catch (Exception e) {
+            Log.e("ActivityUtils", "An exception occurred in startActivityForResult, error message: " + e.getLocalizedMessage());
+            return false;
+        }
+        return true;
+    }
+
+    private static void startActivities(final Intent[] intents,
+                                        final Context context,
+                                        @Nullable final Bundle options) {
+        if (!(context instanceof Activity)) {
+            for (Intent intent : intents) {
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            }
+        }
+        if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            context.startActivities(intents, options);
+        } else {
+            context.startActivities(intents);
+        }
+    }
+
+    private static boolean startActivityForResult(final Fragment fragment,
+                                                  final Bundle extras,
+                                                  final String pkg,
+                                                  final String cls,
+                                                  final int requestCode,
+                                                  @Nullable final Bundle options) {
+        Intent intent = new Intent();
+        if (extras != null) intent.putExtras(extras);
+        intent.setComponent(new ComponentName(pkg, cls));
+        return startActivityForResult(intent, fragment, requestCode, options);
+    }
+
+    private static boolean startActivityForResult(final Intent intent,
+                                                  final Fragment fragment,
+                                                  final int requestCode,
+                                                  @Nullable final Bundle options) {
+        if (fragment.getActivity() == null) {
+            Log.e("ActivityUtils", "Fragment " + fragment + " not attached to Activity");
+            return false;
+        }
+        try {
+            if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                fragment.startActivityForResult(intent, requestCode, options);
+            } else {
+                fragment.startActivityForResult(intent, requestCode);
+            }
+        } catch (Exception e) {
+            Log.e("ActivityUtils", "An exception occurred in fragment.startActivityForResult, error message: " + e.getLocalizedMessage());
+            return false;
+        }
+        return true;
+    }
+
+    private static Bundle getOptionsBundle(final Fragment fragment,
+                                           final int enterAnim,
+                                           final int exitAnim) {
+        Activity activity = fragment.getActivity();
+        if (activity == null) return null;
+        return ActivityOptionsCompat.makeCustomAnimation(activity, enterAnim, exitAnim).toBundle();
+    }
+
+    private static Bundle getOptionsBundle(final Context context,
+                                           final int enterAnim,
+                                           final int exitAnim) {
+        return ActivityOptionsCompat.makeCustomAnimation(context, enterAnim, exitAnim).toBundle();
+    }
+
+    private static Bundle getOptionsBundle(final Fragment fragment,
+                                           final View[] sharedElements) {
+        Activity activity = fragment.getActivity();
+        if (activity == null) return null;
+        return getOptionsBundle(activity, sharedElements);
+    }
+
+    private static Bundle getOptionsBundle(final Activity activity,
+                                           final View[] sharedElements) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) return null;
+        if (sharedElements == null) return null;
+        int len = sharedElements.length;
+        if (len <= 0) return null;
+        @SuppressWarnings("unchecked")
+        Pair<View, String>[] pairs = new Pair[len];
+        for (int i = 0; i < len; i++) {
+            pairs[i] = Pair.create(sharedElements[i], sharedElements[i].getTransitionName());
+        }
+        return ActivityOptionsCompat.makeSceneTransitionAnimation(activity, pairs).toBundle();
+    }
+
+    private static Context getTopActivityOrApp() {
+        if (UtilsBridge.isAppForeground()) {
+            Activity topActivity = getTopActivity();
+            return topActivity == null ? Utils.getApp() : topActivity;
+        } else {
+            return Utils.getApp();
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
new file mode 100644
index 0000000000..aef62a44dc
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
@@ -0,0 +1,165 @@
+package com.blankj.utilcode.util;
+
+import android.content.res.Resources;
+import android.util.DisplayMetrics;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/11/15
+ *     desc  : utils about adapt screen
+ * </pre>
+ */
+public final class AdaptScreenUtils {
+
+    private static List<Field> sMetricsFields;
+
+    private AdaptScreenUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Adapt for the horizontal screen, and call it in {@link android.app.Activity#getResources()}.
+     */
+    @NonNull
+    public static Resources adaptWidth(@NonNull final Resources resources, final int designWidth) {
+        float newXdpi = (resources.getDisplayMetrics().widthPixels * 72f) / designWidth;
+        applyDisplayMetrics(resources, newXdpi);
+        return resources;
+    }
+
+    /**
+     * Adapt for the vertical screen, and call it in {@link android.app.Activity#getResources()}.
+     */
+    @NonNull
+    public static Resources adaptHeight(@NonNull final Resources resources, final int designHeight) {
+        return adaptHeight(resources, designHeight, false);
+    }
+
+    /**
+     * Adapt for the vertical screen, and call it in {@link android.app.Activity#getResources()}.
+     */
+    @NonNull
+    public static Resources adaptHeight(@NonNull final Resources resources, final int designHeight, final boolean includeNavBar) {
+        float screenHeight = (resources.getDisplayMetrics().heightPixels
+                + (includeNavBar ? getNavBarHeight(resources) : 0)) * 72f;
+        float newXdpi = screenHeight / designHeight;
+        applyDisplayMetrics(resources, newXdpi);
+        return resources;
+    }
+
+    private static int getNavBarHeight(@NonNull final Resources resources) {
+        int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
+        if (resourceId != 0) {
+            return resources.getDimensionPixelSize(resourceId);
+        } else {
+            return 0;
+        }
+    }
+
+    /**
+     * @param resources The resources.
+     * @return the resource
+     */
+    @NonNull
+    public static Resources closeAdapt(@NonNull final Resources resources) {
+        float newXdpi = Resources.getSystem().getDisplayMetrics().density * 72f;
+        applyDisplayMetrics(resources, newXdpi);
+        return resources;
+    }
+
+    /**
+     * Value of pt to value of px.
+     *
+     * @param ptValue The value of pt.
+     * @return value of px
+     */
+    public static int pt2Px(final float ptValue) {
+        DisplayMetrics metrics = Utils.getApp().getResources().getDisplayMetrics();
+        return (int) (ptValue * metrics.xdpi / 72f + 0.5);
+    }
+
+    /**
+     * Value of px to value of pt.
+     *
+     * @param pxValue The value of px.
+     * @return value of pt
+     */
+    public static int px2Pt(final float pxValue) {
+        DisplayMetrics metrics = Utils.getApp().getResources().getDisplayMetrics();
+        return (int) (pxValue * 72 / metrics.xdpi + 0.5);
+    }
+
+    private static void applyDisplayMetrics(@NonNull final Resources resources, final float newXdpi) {
+        resources.getDisplayMetrics().xdpi = newXdpi;
+        Utils.getApp().getResources().getDisplayMetrics().xdpi = newXdpi;
+        applyOtherDisplayMetrics(resources, newXdpi);
+    }
+
+    static Runnable getPreLoadRunnable() {
+        return new Runnable() {
+            @Override
+            public void run() {
+                preLoad();
+            }
+        };
+    }
+
+    private static void preLoad() {
+        applyDisplayMetrics(Resources.getSystem(), Resources.getSystem().getDisplayMetrics().xdpi);
+    }
+
+    private static void applyOtherDisplayMetrics(final Resources resources, final float newXdpi) {
+        if (sMetricsFields == null) {
+            sMetricsFields = new ArrayList<>();
+            Class resCls = resources.getClass();
+            Field[] declaredFields = resCls.getDeclaredFields();
+            while (declaredFields != null && declaredFields.length > 0) {
+                for (Field field : declaredFields) {
+                    if (field.getType().isAssignableFrom(DisplayMetrics.class)) {
+                        field.setAccessible(true);
+                        DisplayMetrics tmpDm = getMetricsFromField(resources, field);
+                        if (tmpDm != null) {
+                            sMetricsFields.add(field);
+                            tmpDm.xdpi = newXdpi;
+                        }
+                    }
+                }
+                resCls = resCls.getSuperclass();
+                if (resCls != null) {
+                    declaredFields = resCls.getDeclaredFields();
+                } else {
+                    break;
+                }
+            }
+        } else {
+            applyMetricsFields(resources, newXdpi);
+        }
+    }
+
+    private static void applyMetricsFields(final Resources resources, final float newXdpi) {
+        for (Field metricsField : sMetricsFields) {
+            try {
+                DisplayMetrics dm = (DisplayMetrics) metricsField.get(resources);
+                if (dm != null) dm.xdpi = newXdpi;
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    private static DisplayMetrics getMetricsFromField(final Resources resources, final Field field) {
+        try {
+            return (DisplayMetrics) field.get(resources);
+        } catch (Exception ignore) {
+            return null;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ApiUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ApiUtils.java
new file mode 100644
index 0000000000..2fb3a88b74
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ApiUtils.java
@@ -0,0 +1,115 @@
+package com.blankj.utilcode.util;
+
+import android.util.Log;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  : utils about api
+ * </pre>
+ */
+public final class ApiUtils {
+
+    private static final String TAG = "ApiUtils";
+
+    private Map<Class, BaseApi> mApiMap           = new ConcurrentHashMap<>();
+    private Map<Class, Class>   mInjectApiImplMap = new HashMap<>();
+
+    private ApiUtils() {
+        init();
+    }
+
+    /**
+     * It'll be injected the implClasses who have {@link ApiUtils.Api} annotation
+     * by function of {@link ApiUtils#registerImpl} when execute transform task.
+     */
+    private void init() {/*inject*/}
+
+    private void registerImpl(Class implClass) {
+        mInjectApiImplMap.put(implClass.getSuperclass(), implClass);
+    }
+
+    /**
+     * Get api.
+     *
+     * @param apiClass The class of api.
+     * @param <T>      The type.
+     * @return the api
+     */
+    @Nullable
+    public static <T extends BaseApi> T getApi(@NonNull final Class<T> apiClass) {
+        return getInstance().getApiInner(apiClass);
+    }
+
+    public static void register(@Nullable Class<? extends BaseApi> implClass) {
+        if (implClass == null) return;
+        getInstance().registerImpl(implClass);
+    }
+
+    @NonNull
+    public static String toString_() {
+        return getInstance().toString();
+    }
+
+    @Override
+    public String toString() {
+        return "ApiUtils: " + mInjectApiImplMap;
+    }
+
+    private static ApiUtils getInstance() {
+        return LazyHolder.INSTANCE;
+    }
+
+    private <Result> Result getApiInner(Class apiClass) {
+        BaseApi api = mApiMap.get(apiClass);
+        if (api != null) {
+            return (Result) api;
+        }
+        synchronized (apiClass) {
+            api = mApiMap.get(apiClass);
+            if (api != null) {
+                return (Result) api;
+            }
+            Class implClass = mInjectApiImplMap.get(apiClass);
+            if (implClass != null) {
+                try {
+                    api = (BaseApi) implClass.newInstance();
+                    mApiMap.put(apiClass, api);
+                    return (Result) api;
+                } catch (Exception ignore) {
+                    Log.e(TAG, "The <" + implClass + "> has no parameterless constructor.");
+                    return null;
+                }
+            } else {
+                Log.e(TAG, "The <" + apiClass + "> doesn't implement.");
+                return null;
+            }
+        }
+    }
+
+    private static class LazyHolder {
+        private static final ApiUtils INSTANCE = new ApiUtils();
+    }
+
+    @Target({ElementType.TYPE})
+    @Retention(RetentionPolicy.CLASS)
+    public @interface Api {
+        boolean isMock() default false;
+    }
+
+    public static class BaseApi {
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java
new file mode 100644
index 0000000000..3a07653fb0
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java
@@ -0,0 +1,1024 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.Signature;
+import android.content.pm.SigningInfo;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.os.Build;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/02
+ *     desc  : utils about app
+ * </pre>
+ */
+public final class AppUtils {
+
+    private AppUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Register the status of application changed listener.
+     *
+     * @param listener The status of application changed listener
+     */
+    public static void registerAppStatusChangedListener(@NonNull final Utils.OnAppStatusChangedListener listener) {
+        UtilsBridge.addOnAppStatusChangedListener(listener);
+    }
+
+    /**
+     * Unregister the status of application changed listener.
+     *
+     * @param listener The status of application changed listener
+     */
+    public static void unregisterAppStatusChangedListener(@NonNull final Utils.OnAppStatusChangedListener listener) {
+        UtilsBridge.removeOnAppStatusChangedListener(listener);
+    }
+
+    /**
+     * Install the app.
+     * <p>Target APIs greater than 25 must hold
+     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
+     *
+     * @param filePath The path of file.
+     */
+    public static void installApp(final String filePath) {
+        installApp(UtilsBridge.getFileByPath(filePath));
+    }
+
+    /**
+     * Install the app.
+     * <p>Target APIs greater than 25 must hold
+     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
+     *
+     * @param file The file.
+     */
+    public static void installApp(final File file) {
+        Intent installAppIntent = UtilsBridge.getInstallAppIntent(file);
+        if (installAppIntent == null) return;
+        Utils.getApp().startActivity(installAppIntent);
+    }
+
+    /**
+     * Install the app.
+     * <p>Target APIs greater than 25 must hold
+     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
+     *
+     * @param uri The uri.
+     */
+    public static void installApp(final Uri uri) {
+        Intent installAppIntent = UtilsBridge.getInstallAppIntent(uri);
+        if (installAppIntent == null) return;
+        Utils.getApp().startActivity(installAppIntent);
+    }
+
+    /**
+     * Uninstall the app.
+     * <p>Target APIs greater than 25 must hold
+     * Must hold {@code <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />}</p>
+     *
+     * @param packageName The name of the package.
+     */
+    public static void uninstallApp(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return;
+        Utils.getApp().startActivity(UtilsBridge.getUninstallAppIntent(packageName));
+    }
+
+    /**
+     * Return whether the app is installed.
+     *
+     * @param pkgName The name of the package.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppInstalled(final String pkgName) {
+        if (UtilsBridge.isSpace(pkgName)) return false;
+        PackageManager pm = Utils.getApp().getPackageManager();
+        try {
+            return pm.getApplicationInfo(pkgName, 0).enabled;
+        } catch (PackageManager.NameNotFoundException e) {
+            return false;
+        }
+    }
+
+    /**
+     * Return whether the application with root permission.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppRoot() {
+        ShellUtils.CommandResult result = UtilsBridge.execCmd("echo root", true);
+        return result.result == 0;
+    }
+
+    /**
+     * Return whether it is a debug application.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppDebug() {
+        return isAppDebug(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return whether it is a debug application.
+     *
+     * @param packageName The name of the package.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppDebug(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return false;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
+            return (ai.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Return whether it is a system application.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppSystem() {
+        return isAppSystem(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return whether it is a system application.
+     *
+     * @param packageName The name of the package.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppSystem(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return false;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
+            return (ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Return whether application is foreground.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppForeground() {
+        return UtilsBridge.isAppForeground();
+    }
+
+    /**
+     * Return whether application is foreground.
+     * <p>Target APIs greater than 21 must hold
+     * {@code <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />}</p>
+     *
+     * @param pkgName The name of the package.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppForeground(@NonNull final String pkgName) {
+        return !UtilsBridge.isSpace(pkgName) && pkgName.equals(UtilsBridge.getForegroundProcessName());
+    }
+
+    /**
+     * Return whether application is running.
+     *
+     * @param pkgName The name of the package.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppRunning(final String pkgName) {
+        if (UtilsBridge.isSpace(pkgName)) return false;
+        ActivityManager am = (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        if (am != null) {
+            List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(Integer.MAX_VALUE);
+            if (taskInfo != null && taskInfo.size() > 0) {
+                for (ActivityManager.RunningTaskInfo aInfo : taskInfo) {
+                    if (aInfo.baseActivity != null) {
+                        if (pkgName.equals(aInfo.baseActivity.getPackageName())) {
+                            return true;
+                        }
+                    }
+                }
+            }
+            List<ActivityManager.RunningServiceInfo> serviceInfo = am.getRunningServices(Integer.MAX_VALUE);
+            if (serviceInfo != null && serviceInfo.size() > 0) {
+                for (ActivityManager.RunningServiceInfo aInfo : serviceInfo) {
+                    if (pkgName.equals(aInfo.service.getPackageName())) {
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Launch the application.
+     *
+     * @param packageName The name of the package.
+     */
+    public static void launchApp(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return;
+        Intent launchAppIntent = UtilsBridge.getLaunchAppIntent(packageName);
+        if (launchAppIntent == null) {
+            Log.e("AppUtils", "Didn't exist launcher activity.");
+            return;
+        }
+        Utils.getApp().startActivity(launchAppIntent);
+    }
+
+    /**
+     * Relaunch the application.
+     */
+    public static void relaunchApp() {
+        relaunchApp(false);
+    }
+
+    /**
+     * Relaunch the application.
+     *
+     * @param isKillProcess True to kill the process, false otherwise.
+     */
+    public static void relaunchApp(final boolean isKillProcess) {
+        Intent intent = UtilsBridge.getLaunchAppIntent(Utils.getApp().getPackageName());
+        if (intent == null) {
+            Log.e("AppUtils", "Didn't exist launcher activity.");
+            return;
+        }
+        intent.addFlags(
+                Intent.FLAG_ACTIVITY_NEW_TASK
+                        | Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK
+        );
+        Utils.getApp().startActivity(intent);
+        if (!isKillProcess) return;
+        android.os.Process.killProcess(android.os.Process.myPid());
+        System.exit(0);
+    }
+
+    /**
+     * Launch the application's details settings.
+     */
+    public static void launchAppDetailsSettings() {
+        launchAppDetailsSettings(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Launch the application's details settings.
+     *
+     * @param pkgName The name of the package.
+     */
+    public static void launchAppDetailsSettings(final String pkgName) {
+        if (UtilsBridge.isSpace(pkgName)) return;
+        Intent intent = UtilsBridge.getLaunchAppDetailsSettingsIntent(pkgName, true);
+        if (!UtilsBridge.isIntentAvailable(intent)) return;
+        Utils.getApp().startActivity(intent);
+    }
+
+    /**
+     * Launch the application's details settings.
+     *
+     * @param activity    The activity.
+     * @param requestCode The requestCode.
+     */
+    public static void launchAppDetailsSettings(final Activity activity, final int requestCode) {
+        launchAppDetailsSettings(activity, requestCode, Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Launch the application's details settings.
+     *
+     * @param activity    The activity.
+     * @param requestCode The requestCode.
+     * @param pkgName     The name of the package.
+     */
+    public static void launchAppDetailsSettings(final Activity activity, final int requestCode, final String pkgName) {
+        if (activity == null || UtilsBridge.isSpace(pkgName)) return;
+        Intent intent = UtilsBridge.getLaunchAppDetailsSettingsIntent(pkgName, false);
+        if (!UtilsBridge.isIntentAvailable(intent)) return;
+        activity.startActivityForResult(intent, requestCode);
+    }
+
+    /**
+     * Exit the application.
+     */
+    public static void exitApp() {
+        UtilsBridge.finishAllActivities();
+        System.exit(0);
+    }
+
+    /**
+     * Return the application's icon.
+     *
+     * @return the application's icon
+     */
+    @Nullable
+    public static Drawable getAppIcon() {
+        return getAppIcon(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's icon.
+     *
+     * @param packageName The name of the package.
+     * @return the application's icon
+     */
+    @Nullable
+    public static Drawable getAppIcon(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return null;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            return pi == null ? null : pi.applicationInfo.loadIcon(pm);
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Return the application's icon resource identifier.
+     *
+     * @return the application's icon resource identifier
+     */
+    public static int getAppIconId() {
+        return getAppIconId(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's icon resource identifier.
+     *
+     * @param packageName The name of the package.
+     * @return the application's icon resource identifier
+     */
+    public static int getAppIconId(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return 0;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            return pi == null ? 0 : pi.applicationInfo.icon;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return 0;
+        }
+    }
+
+
+    /**
+     * Return true if this is the first ever time that the application is installed on the device.
+     *
+     * @return true if this is the first ever time that the application is installed on the device.
+     */
+    public static boolean isFirstTimeInstall() {
+        try {
+            long firstInstallTime = Utils.getApp().getPackageManager().getPackageInfo(getAppPackageName(), 0).firstInstallTime;
+            long lastUpdateTime = Utils.getApp().getPackageManager().getPackageInfo(getAppPackageName(), 0).lastUpdateTime;
+            return firstInstallTime == lastUpdateTime;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /**
+     * Return true if app was previously installed and this one is an update/upgrade to that one, returns false if this is a fresh installation and not an update/upgrade.
+     *
+     * @return true if app was previously installed and this one is an update/upgrade to that one, returns false if this is a fresh installation and not an update/upgrade.
+     */
+    public static boolean isAppUpgraded() {
+        try {
+            long firstInstallTime = Utils.getApp().getPackageManager().getPackageInfo(getAppPackageName(), 0).firstInstallTime;
+            long lastUpdateTime = Utils.getApp().getPackageManager().getPackageInfo(getAppPackageName(), 0).lastUpdateTime;
+            return firstInstallTime != lastUpdateTime;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+
+    /**
+     * Return the application's package name.
+     *
+     * @return the application's package name
+     */
+    @NonNull
+    public static String getAppPackageName() {
+        return Utils.getApp().getPackageName();
+    }
+
+    /**
+     * Return the application's name.
+     *
+     * @return the application's name
+     */
+    @NonNull
+    public static String getAppName() {
+        return getAppName(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's name.
+     *
+     * @param packageName The name of the package.
+     * @return the application's name
+     */
+    @NonNull
+    public static String getAppName(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return "";
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            return pi == null ? "" : pi.applicationInfo.loadLabel(pm).toString();
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * Return the application's path.
+     *
+     * @return the application's path
+     */
+    @NonNull
+    public static String getAppPath() {
+        return getAppPath(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's path.
+     *
+     * @param packageName The name of the package.
+     * @return the application's path
+     */
+    @NonNull
+    public static String getAppPath(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return "";
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            return pi == null ? "" : pi.applicationInfo.sourceDir;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * Return the application's version name.
+     *
+     * @return the application's version name
+     */
+    @NonNull
+    public static String getAppVersionName() {
+        return getAppVersionName(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's version name.
+     *
+     * @param packageName The name of the package.
+     * @return the application's version name
+     */
+    @NonNull
+    public static String getAppVersionName(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return "";
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            return pi == null ? "" : pi.versionName;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * Return the application's version code.
+     *
+     * @return the application's version code
+     */
+    public static int getAppVersionCode() {
+        return getAppVersionCode(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's version code.
+     *
+     * @param packageName The name of the package.
+     * @return the application's version code
+     */
+    public static int getAppVersionCode(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return -1;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            return pi == null ? -1 : pi.versionCode;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    /**
+     * Return the application's minimum sdk version code.
+     *
+     * @return the application's minimum sdk version code
+     */
+    public static int getAppMinSdkVersion() {
+        return getAppMinSdkVersion(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's minimum sdk version code.
+     *
+     * @param packageName The name of the package.
+     * @return the application's minimum sdk version code
+     */
+    public static int getAppMinSdkVersion(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return -1;
+        if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.N) return -1;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            if (null == pi) return -1;
+            ApplicationInfo ai = pi.applicationInfo;
+            return null == ai ? -1 : ai.minSdkVersion;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    /**
+     * Return the application's target sdk version code.
+     *
+     * @return the application's target sdk version code
+     */
+    public static int getAppTargetSdkVersion() {
+        return getAppTargetSdkVersion(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's target sdk version code.
+     *
+     * @param packageName The name of the package.
+     * @return the application's target sdk version code
+     */
+    public static int getAppTargetSdkVersion(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return -1;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            PackageInfo pi = pm.getPackageInfo(packageName, 0);
+            if (null == pi) return -1;
+            ApplicationInfo ai = pi.applicationInfo;
+            return null == ai ? -1 : ai.targetSdkVersion;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    /**
+     * Return the application's signature.
+     *
+     * @return the application's signature
+     */
+    @Nullable
+    public static Signature[] getAppSignatures() {
+        return getAppSignatures(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's signature.
+     *
+     * @param packageName The name of the package.
+     * @return the application's signature
+     */
+    @Nullable
+    public static Signature[] getAppSignatures(final String packageName) {
+        if (UtilsBridge.isSpace(packageName)) return null;
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+                PackageInfo pi = pm.getPackageInfo(packageName, PackageManager.GET_SIGNING_CERTIFICATES);
+                if (pi == null) return null;
+
+                SigningInfo signingInfo = pi.signingInfo;
+                if (signingInfo.hasMultipleSigners()) {
+                    return signingInfo.getApkContentsSigners();
+                } else {
+                    return signingInfo.getSigningCertificateHistory();
+                }
+            } else {
+                PackageInfo pi = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
+                if (pi == null) return null;
+
+                return pi.signatures;
+            }
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Return the application's signature.
+     *
+     * @param file The file.
+     * @return the application's signature
+     */
+    @Nullable
+    public static Signature[] getAppSignatures(final File file) {
+        if (file == null) return null;
+        PackageManager pm = Utils.getApp().getPackageManager();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            PackageInfo pi = pm.getPackageArchiveInfo(file.getAbsolutePath(), PackageManager.GET_SIGNING_CERTIFICATES);
+            if (pi == null) return null;
+
+            SigningInfo signingInfo = pi.signingInfo;
+            if (signingInfo.hasMultipleSigners()) {
+                return signingInfo.getApkContentsSigners();
+            } else {
+                return signingInfo.getSigningCertificateHistory();
+            }
+        } else {
+            PackageInfo pi = pm.getPackageArchiveInfo(file.getAbsolutePath(), PackageManager.GET_SIGNATURES);
+            if (pi == null) return null;
+
+            return pi.signatures;
+        }
+    }
+
+    /**
+     * Return the application's signature for SHA1 value.
+     *
+     * @return the application's signature for SHA1 value
+     */
+    @NonNull
+    public static List<String> getAppSignaturesSHA1() {
+        return getAppSignaturesSHA1(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's signature for SHA1 value.
+     *
+     * @param packageName The name of the package.
+     * @return the application's signature for SHA1 value
+     */
+    @NonNull
+    public static List<String> getAppSignaturesSHA1(final String packageName) {
+        return getAppSignaturesHash(packageName, "SHA1");
+    }
+
+    /**
+     * Return the application's signature for SHA256 value.
+     *
+     * @return the application's signature for SHA256 value
+     */
+    @NonNull
+    public static List<String> getAppSignaturesSHA256() {
+        return getAppSignaturesSHA256(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's signature for SHA256 value.
+     *
+     * @param packageName The name of the package.
+     * @return the application's signature for SHA256 value
+     */
+    @NonNull
+    public static List<String> getAppSignaturesSHA256(final String packageName) {
+        return getAppSignaturesHash(packageName, "SHA256");
+    }
+
+    /**
+     * Return the application's signature for MD5 value.
+     *
+     * @return the application's signature for MD5 value
+     */
+    @NonNull
+    public static List<String> getAppSignaturesMD5() {
+        return getAppSignaturesMD5(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's signature for MD5 value.
+     *
+     * @param packageName The name of the package.
+     * @return the application's signature for MD5 value
+     */
+    @NonNull
+    public static List<String> getAppSignaturesMD5(final String packageName) {
+        return getAppSignaturesHash(packageName, "MD5");
+    }
+
+    /**
+     * Return the application's user-ID.
+     *
+     * @return the application's signature for MD5 value
+     */
+    public static int getAppUid() {
+        return getAppUid(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's user-ID.
+     *
+     * @param pkgName The name of the package.
+     * @return the application's signature for MD5 value
+     */
+    public static int getAppUid(String pkgName) {
+        try {
+            return Utils.getApp().getPackageManager().getApplicationInfo(pkgName, 0).uid;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    private static List<String> getAppSignaturesHash(final String packageName, final String algorithm) {
+        ArrayList<String> result = new ArrayList<>();
+        if (UtilsBridge.isSpace(packageName)) return result;
+        Signature[] signatures = getAppSignatures(packageName);
+        if (signatures == null || signatures.length <= 0) return result;
+        for (Signature signature : signatures) {
+            String hash = UtilsBridge.bytes2HexString(UtilsBridge.hashTemplate(signature.toByteArray(), algorithm))
+                    .replaceAll("(?<=[0-9A-F]{2})[0-9A-F]{2}", ":$0");
+            result.add(hash);
+        }
+        return result;
+    }
+
+    /**
+     * Return the application's information.
+     * <ul>
+     * <li>name of package</li>
+     * <li>icon</li>
+     * <li>name</li>
+     * <li>path of package</li>
+     * <li>version name</li>
+     * <li>version code</li>
+     * <li>minimum sdk version code</li>
+     * <li>target sdk version code</li>
+     * <li>is system</li>
+     * </ul>
+     *
+     * @return the application's information
+     */
+    @Nullable
+    public static AppInfo getAppInfo() {
+        return getAppInfo(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the application's information.
+     * <ul>
+     * <li>name of package</li>
+     * <li>icon</li>
+     * <li>name</li>
+     * <li>path of package</li>
+     * <li>version name</li>
+     * <li>version code</li>
+     * <li>minimum sdk version code</li>
+     * <li>target sdk version code</li>
+     * <li>is system</li>
+     * </ul>
+     *
+     * @param packageName The name of the package.
+     * @return the application's information
+     */
+    @Nullable
+    public static AppInfo getAppInfo(final String packageName) {
+        try {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            if (pm == null) return null;
+            return getBean(pm, pm.getPackageInfo(packageName, 0));
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Return the applications' information.
+     *
+     * @return the applications' information
+     */
+    @NonNull
+    public static List<AppInfo> getAppsInfo() {
+        List<AppInfo> list = new ArrayList<>();
+        PackageManager pm = Utils.getApp().getPackageManager();
+        if (pm == null) return list;
+        List<PackageInfo> installedPackages = pm.getInstalledPackages(0);
+        for (PackageInfo pi : installedPackages) {
+            AppInfo ai = getBean(pm, pi);
+            if (ai == null) continue;
+            list.add(ai);
+        }
+        return list;
+    }
+
+    /**
+     * Return the application's package information.
+     *
+     * @return the application's package information
+     */
+    @Nullable
+    public static AppUtils.AppInfo getApkInfo(final File apkFile) {
+        if (apkFile == null || !apkFile.isFile() || !apkFile.exists()) return null;
+        return getApkInfo(apkFile.getAbsolutePath());
+    }
+
+    /**
+     * Return the application's package information.
+     *
+     * @return the application's package information
+     */
+    @Nullable
+    public static AppUtils.AppInfo getApkInfo(final String apkFilePath) {
+        if (UtilsBridge.isSpace(apkFilePath)) return null;
+        PackageManager pm = Utils.getApp().getPackageManager();
+        if (pm == null) return null;
+        PackageInfo pi = pm.getPackageArchiveInfo(apkFilePath, 0);
+        if (pi == null) return null;
+        ApplicationInfo appInfo = pi.applicationInfo;
+        appInfo.sourceDir = apkFilePath;
+        appInfo.publicSourceDir = apkFilePath;
+        return getBean(pm, pi);
+    }
+
+
+    /**
+     * Return whether the application was first installed.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFirstTimeInstalled() {
+        try {
+            PackageInfo pi = Utils.getApp().getPackageManager().getPackageInfo(Utils.getApp().getPackageName(), 0);
+            return pi.firstInstallTime == pi.lastUpdateTime;
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return true;
+        }
+    }
+
+    private static AppInfo getBean(final PackageManager pm, final PackageInfo pi) {
+        if (pi == null) return null;
+        String versionName = pi.versionName;
+        int versionCode = pi.versionCode;
+        String packageName = pi.packageName;
+        ApplicationInfo ai = pi.applicationInfo;
+        if (ai == null) {
+            return new AppInfo(packageName, "", null, "", versionName, versionCode, -1, -1, false);
+        }
+        String name = ai.loadLabel(pm).toString();
+        Drawable icon = ai.loadIcon(pm);
+        String packagePath = ai.sourceDir;
+        int minSdkVersion = -1;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
+            minSdkVersion = ai.minSdkVersion;
+        }
+        int targetSdkVersion = ai.targetSdkVersion;
+        boolean isSystem = (ApplicationInfo.FLAG_SYSTEM & ai.flags) != 0;
+        return new AppInfo(packageName, name, icon, packagePath, versionName, versionCode, minSdkVersion, targetSdkVersion, isSystem);
+    }
+
+    /**
+     * The application's information.
+     */
+    public static class AppInfo {
+
+        private String packageName;
+        private String name;
+        private Drawable icon;
+        private String packagePath;
+        private String versionName;
+        private int versionCode;
+        private int minSdkVersion;
+        private int targetSdkVersion;
+        private boolean isSystem;
+
+        public Drawable getIcon() {
+            return icon;
+        }
+
+        public void setIcon(final Drawable icon) {
+            this.icon = icon;
+        }
+
+        public boolean isSystem() {
+            return isSystem;
+        }
+
+        public void setSystem(final boolean isSystem) {
+            this.isSystem = isSystem;
+        }
+
+        public String getPackageName() {
+            return packageName;
+        }
+
+        public void setPackageName(final String packageName) {
+            this.packageName = packageName;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(final String name) {
+            this.name = name;
+        }
+
+        public String getPackagePath() {
+            return packagePath;
+        }
+
+        public void setPackagePath(final String packagePath) {
+            this.packagePath = packagePath;
+        }
+
+        public int getVersionCode() {
+            return versionCode;
+        }
+
+        public void setVersionCode(final int versionCode) {
+            this.versionCode = versionCode;
+        }
+
+        public String getVersionName() {
+            return versionName;
+        }
+
+        public void setVersionName(final String versionName) {
+            this.versionName = versionName;
+        }
+
+        public int getMinSdkVersion() {
+            return minSdkVersion;
+        }
+
+        public void setMinSdkVersion(int minSdkVersion) {
+            this.minSdkVersion = minSdkVersion;
+        }
+
+        public int getTargetSdkVersion() {
+            return targetSdkVersion;
+        }
+
+        public void setTargetSdkVersion(int targetSdkVersion) {
+            this.targetSdkVersion = targetSdkVersion;
+        }
+
+        public AppInfo(String packageName, String name, Drawable icon, String packagePath, String versionName, int versionCode, int minSdkVersion, int targetSdkVersion, boolean isSystem) {
+            this.setName(name);
+            this.setIcon(icon);
+            this.setPackageName(packageName);
+            this.setPackagePath(packagePath);
+            this.setVersionName(versionName);
+            this.setVersionCode(versionCode);
+            this.setMinSdkVersion(minSdkVersion);
+            this.setTargetSdkVersion(targetSdkVersion);
+            this.setSystem(isSystem);
+        }
+
+        @Override
+        @NonNull
+        public String toString() {
+            return "{" +
+                    "\n    pkg name: " + getPackageName() +
+                    "\n    app icon: " + getIcon() +
+                    "\n    app name: " + getName() +
+                    "\n    app path: " + getPackagePath() +
+                    "\n    app v name: " + getVersionName() +
+                    "\n    app v code: " + getVersionCode() +
+                    "\n    app v min: " + getMinSdkVersion() +
+                    "\n    app v target: " + getTargetSdkVersion() +
+                    "\n    is system: " + isSystem() +
+                    "\n}";
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ArrayUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ArrayUtils.java
new file mode 100644
index 0000000000..48594cedb5
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ArrayUtils.java
@@ -0,0 +1,2143 @@
+package com.blankj.utilcode.util;
+
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.LinkedList;
+import java.util.List;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/10
+ *     desc  : utils about array
+ * </pre>
+ */
+public class ArrayUtils {
+
+    public static final int INDEX_NOT_FOUND = -1;
+
+    private ArrayUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Returns a new array only of those given elements.
+     *
+     * @param array The array.
+     * @return a new array only of those given elements.
+     */
+    @NonNull
+    public static <T> T[] newArray(T... array) {
+        return array;
+    }
+
+    @NonNull
+    public static long[] newLongArray(long... array) {
+        return array;
+    }
+
+    @NonNull
+    public static int[] newIntArray(int... array) {
+        return array;
+    }
+
+    @NonNull
+    public static short[] newShortArray(short... array) {
+        return array;
+    }
+
+    @NonNull
+    public static char[] newCharArray(char... array) {
+        return array;
+    }
+
+    @NonNull
+    public static byte[] newByteArray(byte... array) {
+        return array;
+    }
+
+    @NonNull
+    public static double[] newDoubleArray(double... array) {
+        return array;
+    }
+
+    @NonNull
+    public static float[] newFloatArray(float... array) {
+        return array;
+    }
+
+    @NonNull
+    public static boolean[] newBooleanArray(boolean... array) {
+        return array;
+    }
+
+    /**
+     * Return the array is empty.
+     *
+     * @param array The array.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isEmpty(@Nullable Object array) {
+        return getLength(array) == 0;
+    }
+
+    /**
+     * Return the size of array.
+     *
+     * @param array The array.
+     * @return the size of array
+     */
+    public static int getLength(@Nullable Object array) {
+        if (array == null) return 0;
+        return Array.getLength(array);
+    }
+
+    public static boolean isSameLength(@Nullable Object array1, @Nullable Object array2) {
+        return getLength(array1) == getLength(array2);
+    }
+
+    /**
+     * Get the value of the specified index of the array.
+     *
+     * @param array The array.
+     * @param index The index into the array.
+     * @return the value of the specified index of the array
+     */
+    @Nullable
+    public static Object get(@Nullable Object array, int index) {
+        return get(array, index, null);
+    }
+
+    /**
+     * Get the value of the specified index of the array.
+     *
+     * @param array        The array.
+     * @param index        The index into the array.
+     * @param defaultValue The default value.
+     * @return the value of the specified index of the array
+     */
+    @Nullable
+    public static Object get(@Nullable Object array, int index, @Nullable Object defaultValue) {
+        if (array == null) return defaultValue;
+        try {
+            return Array.get(array, index);
+        } catch (Exception ignore) {
+            return defaultValue;
+        }
+    }
+
+    /**
+     * Set the value of the specified index of the array.
+     *
+     * @param array The array.
+     * @param index The index into the array.
+     * @param value The new value of the indexed component.
+     */
+    public static void set(@Nullable Object array, int index, @Nullable Object value) {
+        if (array == null) return;
+        Array.set(array, index, value);
+    }
+
+    /**
+     * Return whether the two arrays are equals.
+     *
+     * @param a  One array.
+     * @param a2 The other array.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean equals(@Nullable Object[] a, @Nullable Object[] a2) {
+        return Arrays.deepEquals(a, a2);
+    }
+
+    public static boolean equals(boolean[] a, boolean[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    public static boolean equals(byte[] a, byte[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    public static boolean equals(char[] a, char[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    public static boolean equals(double[] a, double[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    public static boolean equals(float[] a, float[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    public static boolean equals(int[] a, int[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    public static boolean equals(short[] a, short[] a2) {
+        return Arrays.equals(a, a2);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // reverse
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * <p>Reverses the order of the given array.</p>
+     *
+     * <p>There is no special handling for multi-dimensional arrays.</p>
+     *
+     * <p>This method does nothing for a <code>null</code> input array.</p>
+     *
+     * @param array the array to reverse, may be <code>null</code>
+     */
+    public static <T> void reverse(T[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        T tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(long[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        long tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(int[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        int tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(short[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        short tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(char[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        char tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(byte[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        byte tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(double[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        double tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(float[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        float tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    public static void reverse(boolean[] array) {
+        if (array == null) {
+            return;
+        }
+        int i = 0;
+        int j = array.length - 1;
+        boolean tmp;
+        while (j > i) {
+            tmp = array[j];
+            array[j] = array[i];
+            array[i] = tmp;
+            j--;
+            i++;
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // copy
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * <p>Copies the specified array and handling
+     * <code>null</code>.</p>
+     *
+     * <p>The objects in the array are not cloned, thus there is no special
+     * handling for multi-dimensional arrays.</p>
+     *
+     * <p>This method returns <code>null</code> for a <code>null</code> input array.</p>
+     *
+     * @param array the array to shallow clone, may be <code>null</code>
+     * @return the cloned array, <code>null</code> if <code>null</code> input
+     */
+    @Nullable
+    public static <T> T[] copy(@Nullable T[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static long[] copy(@Nullable long[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static int[] copy(@Nullable int[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static short[] copy(@Nullable short[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static char[] copy(@Nullable char[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static byte[] copy(@Nullable byte[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static double[] copy(@Nullable double[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static float[] copy(@Nullable float[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    public static boolean[] copy(@Nullable boolean[] array) {
+        if (array == null) return null;
+        return subArray(array, 0, array.length);
+    }
+
+    @Nullable
+    private static Object realCopy(@Nullable Object array) {
+        if (array == null) return null;
+        return realSubArray(array, 0, getLength(array));
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // subArray
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static <T> T[] subArray(@Nullable T[] array, int startIndexInclusive, int endIndexExclusive) {
+        //noinspection unchecked
+        return (T[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static long[] subArray(@Nullable long[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (long[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static int[] subArray(@Nullable int[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (int[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static short[] subArray(@Nullable short[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (short[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static char[] subArray(@Nullable char[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (char[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static byte[] subArray(@Nullable byte[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (byte[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static double[] subArray(@Nullable double[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (double[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static float[] subArray(@Nullable float[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (float[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    public static boolean[] subArray(@Nullable boolean[] array, int startIndexInclusive, int endIndexExclusive) {
+        return (boolean[]) realSubArray(array, startIndexInclusive, endIndexExclusive);
+    }
+
+    @Nullable
+    private static Object realSubArray(@Nullable Object array, int startIndexInclusive, int endIndexExclusive) {
+        if (array == null) {
+            return null;
+        }
+        if (startIndexInclusive < 0) {
+            startIndexInclusive = 0;
+        }
+        int length = getLength(array);
+        if (endIndexExclusive > length) {
+            endIndexExclusive = length;
+        }
+        int newSize = endIndexExclusive - startIndexInclusive;
+        Class type = array.getClass().getComponentType();
+        if (newSize <= 0) {
+            return Array.newInstance(type, 0);
+        }
+        Object subArray = Array.newInstance(type, newSize);
+        System.arraycopy(array, startIndexInclusive, subArray, 0, newSize);
+        return subArray;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // add
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * <p>Copies the given array and adds the given element at the end of the new array.</p>
+     *
+     * <p>The new array contains the same elements of the input
+     * array plus the given element in the last position. The component type of
+     * the new array is the same as that of the input array.</p>
+     *
+     * <p>If the input array is <code>null</code>, a new one element array is returned
+     * whose component type is the same as the element.</p>
+     *
+     * <pre>
+     * ArrayUtils.realAdd(null, null)      = [null]
+     * ArrayUtils.realAdd(null, "a")       = ["a"]
+     * ArrayUtils.realAdd(["a"], null)     = ["a", null]
+     * ArrayUtils.realAdd(["a"], "b")      = ["a", "b"]
+     * ArrayUtils.realAdd(["a", "b"], "c") = ["a", "b", "c"]
+     * </pre>
+     *
+     * @param array   the array to "realAdd" the element to, may be <code>null</code>
+     * @param element the object to realAdd
+     * @return A new array containing the existing elements plus the new element
+     */
+    @NonNull
+    public static <T> T[] add(@Nullable T[] array, @Nullable T element) {
+        Class type = array != null ? array.getClass() : (element != null ? element.getClass() : Object.class);
+        return (T[]) realAddOne(array, element, type);
+    }
+
+    @NonNull
+    public static boolean[] add(@Nullable boolean[] array, boolean element) {
+        return (boolean[]) realAddOne(array, element, Boolean.TYPE);
+    }
+
+    @NonNull
+    public static byte[] add(@Nullable byte[] array, byte element) {
+        return (byte[]) realAddOne(array, element, Byte.TYPE);
+    }
+
+    @NonNull
+    public static char[] add(@Nullable char[] array, char element) {
+        return (char[]) realAddOne(array, element, Character.TYPE);
+    }
+
+    @NonNull
+    public static double[] add(@Nullable double[] array, double element) {
+        return (double[]) realAddOne(array, element, Double.TYPE);
+    }
+
+    @NonNull
+    public static float[] add(@Nullable float[] array, float element) {
+        return (float[]) realAddOne(array, element, Float.TYPE);
+    }
+
+    @NonNull
+    public static int[] add(@Nullable int[] array, int element) {
+        return (int[]) realAddOne(array, element, Integer.TYPE);
+    }
+
+    @NonNull
+    public static long[] add(@Nullable long[] array, long element) {
+        return (long[]) realAddOne(array, element, Long.TYPE);
+    }
+
+    @NonNull
+    public static short[] add(@Nullable short[] array, short element) {
+        return (short[]) realAddOne(array, element, Short.TYPE);
+    }
+
+    @NonNull
+    private static Object realAddOne(@Nullable Object array, @Nullable Object element, Class newArrayComponentType) {
+        Object newArray;
+        int arrayLength = 0;
+        if (array != null) {
+            arrayLength = getLength(array);
+            newArray = Array.newInstance(array.getClass().getComponentType(), arrayLength + 1);
+            System.arraycopy(array, 0, newArray, 0, arrayLength);
+        } else {
+            newArray = Array.newInstance(newArrayComponentType, 1);
+        }
+        Array.set(newArray, arrayLength, element);
+        return newArray;
+    }
+
+    /**
+     * <p>Adds all the elements of the given arrays into a new array.</p>
+     * <p>The new array contains all of the element of <code>array1</code> followed
+     * by all of the elements <code>array2</code>. When an array is returned, it is always
+     * a new array.</p>
+     *
+     * <pre>
+     * ArrayUtils.add(null, null)     = null
+     * ArrayUtils.add(array1, null)   = copy of array1
+     * ArrayUtils.add(null, array2)   = copy of array2
+     * ArrayUtils.add([], [])         = []
+     * ArrayUtils.add([null], [null]) = [null, null]
+     * ArrayUtils.add(["a", "b", "c"], ["1", "2", "3"]) = ["a", "b", "c", "1", "2", "3"]
+     * </pre>
+     *
+     * @param array1 the first array whose elements are added to the new array, may be <code>null</code>
+     * @param array2 the second array whose elements are added to the new array, may be <code>null</code>
+     * @return The new array, <code>null</code> if <code>null</code> array inputs.
+     * The type of the new array is the type of the first array.
+     */
+    @Nullable
+    public static <T> T[] add(@Nullable T[] array1, @Nullable T[] array2) {
+        return (T[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static boolean[] add(@Nullable boolean[] array1, @Nullable boolean[] array2) {
+        return (boolean[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static char[] add(@Nullable char[] array1, @Nullable char[] array2) {
+        return (char[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static byte[] add(@Nullable byte[] array1, @Nullable byte[] array2) {
+        return (byte[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static short[] add(@Nullable short[] array1, @Nullable short[] array2) {
+        return (short[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static int[] add(@Nullable int[] array1, @Nullable int[] array2) {
+        return (int[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static long[] add(@Nullable long[] array1, @Nullable long[] array2) {
+        return (long[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static float[] add(@Nullable float[] array1, @Nullable float[] array2) {
+        return (float[]) realAddArr(array1, array2);
+    }
+
+    @Nullable
+    public static double[] add(@Nullable double[] array1, @Nullable double[] array2) {
+        return (double[]) realAddArr(array1, array2);
+    }
+
+    private static Object realAddArr(@Nullable Object array1, @Nullable Object array2) {
+        if (array1 == null && array2 == null) return null;
+        if (array1 == null) {
+            return realCopy(array2);
+        }
+        if (array2 == null) {
+            return realCopy(array1);
+        }
+        int len1 = getLength(array1);
+        int len2 = getLength(array2);
+        Object joinedArray = Array.newInstance(array1.getClass().getComponentType(), len1 + len2);
+        System.arraycopy(array1, 0, joinedArray, 0, len1);
+        System.arraycopy(array2, 0, joinedArray, len1, len2);
+        return joinedArray;
+    }
+
+    /**
+     * <p>Inserts the specified element at the specified position in the array.
+     * Shifts the element currently at that position (if any) and any subsequent
+     * elements to the right (adds one to their indices).</p>
+     *
+     * <p>This method returns a new array with the same elements of the input
+     * array plus the given element on the specified position. The component
+     * type of the returned array is always the same as that of the input
+     * array.</p>
+     *
+     * <p>If the input array is <code>null</code>, a new one element array is returned
+     * whose component type is the same as the element.</p>
+     *
+     * <pre>
+     * ArrayUtils.add(null, 0, null)        = null
+     * ArrayUtils.add(null, 0, ["a"])       = ["a"]
+     * ArrayUtils.add(["a"], 1, null)       = ["a"]
+     * ArrayUtils.add(["a"], 1, ["b"])      = ["a", "b"]
+     * ArrayUtils.add(["a", "b"], 2, ["c"]) = ["a", "b", "c"]
+     * </pre>
+     *
+     * @param array1 the array to realAdd the element to, may be <code>null</code>
+     * @param index  the position of the new object
+     * @param array2 the array to realAdd
+     * @return A new array containing the existing elements and the new element
+     * @throws IndexOutOfBoundsException if the index is out of range
+     *                                   (index < 0 || index > array.length).
+     */
+    @Nullable
+    public static <T> T[] add(@Nullable T[] array1, int index, @Nullable T[] array2) {
+        Class clss;
+        if (array1 != null) {
+            clss = array1.getClass().getComponentType();
+        } else if (array2 != null) {
+            clss = array2.getClass().getComponentType();
+        } else {
+            return null;
+        }
+        return (T[]) realAddArr(array1, index, array2, clss);
+    }
+
+    @Nullable
+    public static boolean[] add(@Nullable boolean[] array1, int index, @Nullable boolean[] array2) {
+        Object result = realAddArr(array1, index, array2, Boolean.TYPE);
+        if (result == null) return null;
+        return (boolean[]) result;
+    }
+
+    public static char[] add(@Nullable char[] array1, int index, @Nullable char[] array2) {
+        Object result = realAddArr(array1, index, array2, Character.TYPE);
+        if (result == null) return null;
+        return (char[]) result;
+    }
+
+    @Nullable
+    public static byte[] add(@Nullable byte[] array1, int index, @Nullable byte[] array2) {
+        Object result = realAddArr(array1, index, array2, Byte.TYPE);
+        if (result == null) return null;
+        return (byte[]) result;
+    }
+
+    @Nullable
+    public static short[] add(@Nullable short[] array1, int index, @Nullable short[] array2) {
+        Object result = realAddArr(array1, index, array2, Short.TYPE);
+        if (result == null) return null;
+        return (short[]) result;
+    }
+
+    @Nullable
+    public static int[] add(@Nullable int[] array1, int index, @Nullable int[] array2) {
+        Object result = realAddArr(array1, index, array2, Integer.TYPE);
+        if (result == null) return null;
+        return (int[]) result;
+    }
+
+    @Nullable
+    public static long[] add(@Nullable long[] array1, int index, @Nullable long[] array2) {
+        Object result = realAddArr(array1, index, array2, Long.TYPE);
+        if (result == null) return null;
+        return (long[]) result;
+    }
+
+    @Nullable
+    public static float[] add(@Nullable float[] array1, int index, @Nullable float[] array2) {
+        Object result = realAddArr(array1, index, array2, Float.TYPE);
+        if (result == null) return null;
+        return (float[]) result;
+    }
+
+    @Nullable
+    public static double[] add(@Nullable double[] array1, int index, @Nullable double[] array2) {
+        Object result = realAddArr(array1, index, array2, Double.TYPE);
+        if (result == null) return null;
+        return (double[]) result;
+    }
+
+    @Nullable
+    private static Object realAddArr(@Nullable Object array1, int index, @Nullable Object array2, Class clss) {
+        if (array1 == null && array2 == null) return null;
+        int len1 = getLength(array1);
+        int len2 = getLength(array2);
+        if (len1 == 0) {
+            if (index != 0) {
+                throw new IndexOutOfBoundsException("Index: " + index + ", array1 Length: 0");
+            }
+            return realCopy(array2);
+        }
+        if (len2 == 0) {
+            return realCopy(array1);
+        }
+        if (index > len1 || index < 0) {
+            throw new IndexOutOfBoundsException("Index: " + index + ", array1 Length: " + len1);
+        }
+        Object joinedArray = Array.newInstance(array1.getClass().getComponentType(), len1 + len2);
+        if (index == len1) {
+            System.arraycopy(array1, 0, joinedArray, 0, len1);
+            System.arraycopy(array2, 0, joinedArray, len1, len2);
+        } else if (index == 0) {
+            System.arraycopy(array2, 0, joinedArray, 0, len2);
+            System.arraycopy(array1, 0, joinedArray, len2, len1);
+        } else {
+            System.arraycopy(array1, 0, joinedArray, 0, index);
+            System.arraycopy(array2, 0, joinedArray, index, len2);
+            System.arraycopy(array1, index, joinedArray, index + len2, len1 - index);
+        }
+        return joinedArray;
+    }
+
+    /**
+     * <p>Inserts the specified element at the specified position in the array.
+     * Shifts the element currently at that position (if any) and any subsequent
+     * elements to the right (adds one to their indices).</p>
+     *
+     * <p>This method returns a new array with the same elements of the input
+     * array plus the given element on the specified position. The component
+     * type of the returned array is always the same as that of the input
+     * array.</p>
+     *
+     * <p>If the input array is <code>null</code>, a new one element array is returned
+     * whose component type is the same as the element.</p>
+     *
+     * <pre>
+     * ArrayUtils.add(null, 0, null)      = [null]
+     * ArrayUtils.add(null, 0, "a")       = ["a"]
+     * ArrayUtils.add(["a"], 1, null)     = ["a", null]
+     * ArrayUtils.add(["a"], 1, "b")      = ["a", "b"]
+     * ArrayUtils.add(["a", "b"], 3, "c") = ["a", "b", "c"]
+     * </pre>
+     *
+     * @param array   the array to realAdd the element to, may be <code>null</code>
+     * @param index   the position of the new object
+     * @param element the object to realAdd
+     * @return A new array containing the existing elements and the new element
+     * @throws IndexOutOfBoundsException if the index is out of range
+     *                                   (index < 0 || index > array.length).
+     */
+    @NonNull
+    public static <T> T[] add(@Nullable T[] array, int index, @Nullable T element) {
+        Class clss;
+        if (array != null) {
+            clss = array.getClass().getComponentType();
+        } else if (element != null) {
+            clss = element.getClass();
+        } else {
+            return (T[]) new Object[]{null};
+        }
+        return (T[]) realAdd(array, index, element, clss);
+    }
+
+    @NonNull
+    public static boolean[] add(@Nullable boolean[] array, int index, boolean element) {
+        return (boolean[]) realAdd(array, index, element, Boolean.TYPE);
+    }
+
+    @NonNull
+    public static char[] add(@Nullable char[] array, int index, char element) {
+        return (char[]) realAdd(array, index, element, Character.TYPE);
+    }
+
+    @NonNull
+    public static byte[] add(@Nullable byte[] array, int index, byte element) {
+        return (byte[]) realAdd(array, index, element, Byte.TYPE);
+    }
+
+    @NonNull
+    public static short[] add(@Nullable short[] array, int index, short element) {
+        return (short[]) realAdd(array, index, element, Short.TYPE);
+    }
+
+    @NonNull
+    public static int[] add(@Nullable int[] array, int index, int element) {
+        return (int[]) realAdd(array, index, element, Integer.TYPE);
+    }
+
+    @NonNull
+    public static long[] add(@Nullable long[] array, int index, long element) {
+        return (long[]) realAdd(array, index, element, Long.TYPE);
+    }
+
+    @NonNull
+    public static float[] add(@Nullable float[] array, int index, float element) {
+        return (float[]) realAdd(array, index, element, Float.TYPE);
+    }
+
+    @NonNull
+    public static double[] add(@Nullable double[] array, int index, double element) {
+        return (double[]) realAdd(array, index, element, Double.TYPE);
+    }
+
+    @NonNull
+    private static Object realAdd(@Nullable Object array, int index, @Nullable Object element, Class clss) {
+        if (array == null) {
+            if (index != 0) {
+                throw new IndexOutOfBoundsException("Index: " + index + ", Length: 0");
+            }
+            Object joinedArray = Array.newInstance(clss, 1);
+            Array.set(joinedArray, 0, element);
+            return joinedArray;
+        }
+        int length = Array.getLength(array);
+        if (index > length || index < 0) {
+            throw new IndexOutOfBoundsException("Index: " + index + ", Length: " + length);
+        }
+        Object result = Array.newInstance(clss, length + 1);
+        System.arraycopy(array, 0, result, 0, index);
+        Array.set(result, index, element);
+        if (index < length) {
+            System.arraycopy(array, index, result, index + 1, length - index);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // remove
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * <p>Removes the element at the specified position from the specified array.
+     * All subsequent elements are shifted to the left (substracts one from
+     * their indices).</p>
+     *
+     * <p>This method returns a new array with the same elements of the input
+     * array except the element on the specified position. The component
+     * type of the returned array is always the same as that of the input
+     * array.</p>
+     *
+     * <p>If the input array is <code>null</code>, an IndexOutOfBoundsException
+     * will be thrown, because in that case no valid index can be specified.</p>
+     *
+     * <pre>
+     * ArrayUtils.remove(["a"], 0)           = []
+     * ArrayUtils.remove(["a", "b"], 0)      = ["b"]
+     * ArrayUtils.remove(["a", "b"], 1)      = ["a"]
+     * ArrayUtils.remove(["a", "b", "c"], 1) = ["a", "c"]
+     * </pre>
+     *
+     * @param array the array to remove the element from, may be <code>null</code>
+     * @param index the position of the element to be removed
+     * @return A new array containing the existing elements except the element
+     * at the specified position.
+     * @throws IndexOutOfBoundsException if the index is out of range
+     *                                   (index < 0 || index >= array.length)
+     */
+    @Nullable
+    public static Object[] remove(@Nullable Object[] array, int index) {
+        if (array == null) return null;
+        return (Object[]) remove((Object) array, index);
+    }
+
+    /**
+     * <p>Removes the first occurrence of the specified element from the
+     * specified array. All subsequent elements are shifted to the left
+     * (substracts one from their indices). If the array doesn't contains
+     * such an element, no elements are removed from the array.</p>
+     *
+     * <p>This method returns a new array with the same elements of the input
+     * array except the first occurrence of the specified element. The component
+     * type of the returned array is always the same as that of the input
+     * array.</p>
+     *
+     * <pre>
+     * ArrayUtils.removeElement(null, "a")            = null
+     * ArrayUtils.removeElement([], "a")              = []
+     * ArrayUtils.removeElement(["a"], "b")           = ["a"]
+     * ArrayUtils.removeElement(["a", "b"], "a")      = ["b"]
+     * ArrayUtils.removeElement(["a", "b", "a"], "a") = ["b", "a"]
+     * </pre>
+     *
+     * @param array   the array to remove the element from, may be <code>null</code>
+     * @param element the element to be removed
+     * @return A new array containing the existing elements except the first
+     * occurrence of the specified element.
+     */
+    @Nullable
+    public static Object[] removeElement(@Nullable Object[] array, @Nullable Object element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static boolean[] remove(@Nullable boolean[] array, int index) {
+        if (array == null) return null;
+        return (boolean[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static boolean[] removeElement(@Nullable boolean[] array, boolean element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static byte[] remove(@Nullable byte[] array, int index) {
+        if (array == null) return null;
+        return (byte[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static byte[] removeElement(@Nullable byte[] array, byte element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static char[] remove(@Nullable char[] array, int index) {
+        if (array == null) return null;
+        return (char[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static char[] removeElement(@Nullable char[] array, char element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static double[] remove(@Nullable double[] array, int index) {
+        if (array == null) return null;
+        return (double[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static double[] removeElement(@Nullable double[] array, double element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        //noinspection ConstantConditions
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static float[] remove(@Nullable float[] array, int index) {
+        if (array == null) return null;
+        return (float[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static float[] removeElement(@Nullable float[] array, float element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static int[] remove(@Nullable int[] array, int index) {
+        if (array == null) return null;
+        return (int[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static int[] removeElement(@Nullable int[] array, int element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static long[] remove(@Nullable long[] array, int index) {
+        if (array == null) return null;
+        return (long[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static long[] removeElement(@Nullable long[] array, long element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @Nullable
+    public static short[] remove(@Nullable short[] array, int index) {
+        if (array == null) return null;
+        return (short[]) remove((Object) array, index);
+    }
+
+    @Nullable
+    public static short[] removeElement(@Nullable short[] array, short element) {
+        int index = indexOf(array, element);
+        if (index == INDEX_NOT_FOUND) {
+            return copy(array);
+        }
+        return remove(array, index);
+    }
+
+    @NonNull
+    private static Object remove(@NonNull Object array, int index) {
+        int length = getLength(array);
+        if (index < 0 || index >= length) {
+            throw new IndexOutOfBoundsException("Index: " + index + ", Length: " + length);
+        }
+
+        Object result = Array.newInstance(array.getClass().getComponentType(), length - 1);
+        System.arraycopy(array, 0, result, 0, index);
+        if (index < length - 1) {
+            System.arraycopy(array, index + 1, result, index, length - index - 1);
+        }
+
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // object indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable Object[] array, @Nullable Object objectToFind) {
+        return indexOf(array, objectToFind, 0);
+    }
+
+    public static int indexOf(@Nullable Object[] array, @Nullable final Object objectToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        if (objectToFind == null) {
+            for (int i = startIndex; i < array.length; i++) {
+                if (array[i] == null) {
+                    return i;
+                }
+            }
+        } else {
+            for (int i = startIndex; i < array.length; i++) {
+                if (objectToFind.equals(array[i])) {
+                    return i;
+                }
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable Object[] array, @Nullable Object objectToFind) {
+        return lastIndexOf(array, objectToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable Object[] array, @Nullable Object objectToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        if (objectToFind == null) {
+            for (int i = startIndex; i >= 0; i--) {
+                if (array[i] == null) {
+                    return i;
+                }
+            }
+        } else {
+            for (int i = startIndex; i >= 0; i--) {
+                if (objectToFind.equals(array[i])) {
+                    return i;
+                }
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable Object[] array, @Nullable Object objectToFind) {
+        return indexOf(array, objectToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // long indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable long[] array, long valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable long[] array, long valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable long[] array, long valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable long[] array, long valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable long[] array, long valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // int indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable int[] array, int valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable int[] array, int valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable int[] array, int valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable int[] array, int valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable int[] array, int valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // short indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable short[] array, short valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable short[] array, short valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable short[] array, short valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable short[] array, short valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable short[] array, short valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // char indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable char[] array, char valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable char[] array, char valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable char[] array, char valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable char[] array, char valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable char[] array, char valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // byte indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable byte[] array, byte valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable byte[] array, byte valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable byte[] array, byte valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable byte[] array, byte valueToFind, int startIndex) {
+        if (array == null) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable byte[] array, byte valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // double indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable double[] array, double valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable double[] array, double valueToFind, double tolerance) {
+        return indexOf(array, valueToFind, 0, tolerance);
+    }
+
+    public static int indexOf(@Nullable double[] array, double valueToFind, int startIndex) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int indexOf(@Nullable double[] array, double valueToFind, int startIndex, double tolerance) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        double min = valueToFind - tolerance;
+        double max = valueToFind + tolerance;
+        for (int i = startIndex; i < array.length; i++) {
+            if (array[i] >= min && array[i] <= max) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable double[] array, double valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable double[] array, double valueToFind, double tolerance) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE, tolerance);
+    }
+
+    public static int lastIndexOf(@Nullable double[] array, double valueToFind, int startIndex) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable double[] array, double valueToFind, int startIndex, double tolerance) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        double min = valueToFind - tolerance;
+        double max = valueToFind + tolerance;
+        for (int i = startIndex; i >= 0; i--) {
+            if (array[i] >= min && array[i] <= max) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable double[] array, double valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable double[] array, double valueToFind, double tolerance) {
+        return indexOf(array, valueToFind, 0, tolerance) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // float indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable float[] array, float valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable float[] array, float valueToFind, int startIndex) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable float[] array, float valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable float[] array, float valueToFind, int startIndex) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable float[] array, float valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // bool indexOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    public static int indexOf(@Nullable boolean[] array, boolean valueToFind) {
+        return indexOf(array, valueToFind, 0);
+    }
+
+    public static int indexOf(@Nullable boolean[] array, boolean valueToFind, int startIndex) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            startIndex = 0;
+        }
+        for (int i = startIndex; i < array.length; i++) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static int lastIndexOf(@Nullable boolean[] array, boolean valueToFind) {
+        return lastIndexOf(array, valueToFind, Integer.MAX_VALUE);
+    }
+
+    public static int lastIndexOf(@Nullable boolean[] array, boolean valueToFind, int startIndex) {
+        if (ArrayUtils.isEmpty(array)) {
+            return INDEX_NOT_FOUND;
+        }
+        if (startIndex < 0) {
+            return INDEX_NOT_FOUND;
+        } else if (startIndex >= array.length) {
+            startIndex = array.length - 1;
+        }
+        for (int i = startIndex; i >= 0; i--) {
+            if (valueToFind == array[i]) {
+                return i;
+            }
+        }
+        return INDEX_NOT_FOUND;
+    }
+
+    public static boolean contains(@Nullable boolean[] array, boolean valueToFind) {
+        return indexOf(array, valueToFind) != INDEX_NOT_FOUND;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // char converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static char[] toPrimitive(@Nullable Character[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new char[0];
+        }
+        final char[] result = new char[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].charValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static char[] toPrimitive(@Nullable Character[] array, char valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new char[0];
+        }
+        final char[] result = new char[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Character b = array[i];
+            result[i] = (b == null ? valueForNull : b.charValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Character[] toObject(@Nullable char[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Character[0];
+        }
+        final Character[] result = new Character[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Character(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // long converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static long[] toPrimitive(@Nullable Long[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new long[0];
+        }
+        final long[] result = new long[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].longValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static long[] toPrimitive(@Nullable Long[] array, long valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new long[0];
+        }
+        final long[] result = new long[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Long b = array[i];
+            result[i] = (b == null ? valueForNull : b.longValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Long[] toObject(@Nullable long[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Long[0];
+        }
+        final Long[] result = new Long[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Long(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // int converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static int[] toPrimitive(@Nullable Integer[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new int[0];
+        }
+        final int[] result = new int[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].intValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static int[] toPrimitive(@Nullable Integer[] array, int valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new int[0];
+        }
+        final int[] result = new int[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Integer b = array[i];
+            result[i] = (b == null ? valueForNull : b.intValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Integer[] toObject(@Nullable int[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Integer[0];
+        }
+        final Integer[] result = new Integer[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Integer(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // short converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static short[] toPrimitive(@Nullable Short[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new short[0];
+        }
+        final short[] result = new short[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].shortValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static short[] toPrimitive(@Nullable Short[] array, short valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new short[0];
+        }
+        final short[] result = new short[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Short b = array[i];
+            result[i] = (b == null ? valueForNull : b.shortValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Short[] toObject(@Nullable short[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Short[0];
+        }
+        final Short[] result = new Short[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Short(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // byte converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static byte[] toPrimitive(@Nullable Byte[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new byte[0];
+        }
+        final byte[] result = new byte[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].byteValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static byte[] toPrimitive(@Nullable Byte[] array, byte valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new byte[0];
+        }
+        final byte[] result = new byte[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Byte b = array[i];
+            result[i] = (b == null ? valueForNull : b.byteValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Byte[] toObject(@Nullable byte[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Byte[0];
+        }
+        final Byte[] result = new Byte[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Byte(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // double converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static double[] toPrimitive(@Nullable Double[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new double[0];
+        }
+        final double[] result = new double[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].doubleValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static double[] toPrimitive(@Nullable Double[] array, double valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new double[0];
+        }
+        final double[] result = new double[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Double b = array[i];
+            result[i] = (b == null ? valueForNull : b.doubleValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Double[] toObject(@Nullable double[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Double[0];
+        }
+        final Double[] result = new Double[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Double(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // float converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static float[] toPrimitive(@Nullable Float[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new float[0];
+        }
+        final float[] result = new float[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].floatValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static float[] toPrimitive(@Nullable Float[] array, float valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new float[0];
+        }
+        final float[] result = new float[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Float b = array[i];
+            result[i] = (b == null ? valueForNull : b.floatValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Float[] toObject(@Nullable float[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Float[0];
+        }
+        final Float[] result = new Float[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = new Float(array[i]);
+        }
+        return result;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // boolean converters
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Nullable
+    public static boolean[] toPrimitive(@Nullable Boolean[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new boolean[0];
+        }
+        final boolean[] result = new boolean[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = array[i].booleanValue();
+        }
+        return result;
+    }
+
+    @Nullable
+    public static boolean[] toPrimitive(@Nullable Boolean[] array, boolean valueForNull) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new boolean[0];
+        }
+        final boolean[] result = new boolean[array.length];
+        for (int i = 0; i < array.length; i++) {
+            Boolean b = array[i];
+            result[i] = (b == null ? valueForNull : b.booleanValue());
+        }
+        return result;
+    }
+
+    @Nullable
+    public static Boolean[] toObject(@Nullable boolean[] array) {
+        if (array == null) {
+            return null;
+        } else if (array.length == 0) {
+            return new Boolean[0];
+        }
+        final Boolean[] result = new Boolean[array.length];
+        for (int i = 0; i < array.length; i++) {
+            result[i] = (array[i] ? Boolean.TRUE : Boolean.FALSE);
+        }
+        return result;
+    }
+
+    @NonNull
+    public static <T> List<T> asList(@Nullable T... array) {
+        if (array == null || array.length == 0) {
+            return Collections.emptyList();
+        }
+        return Arrays.asList(array);
+    }
+
+    @NonNull
+    public static <T> List<T> asUnmodifiableList(@Nullable T... array) {
+        return Collections.unmodifiableList(asList(array));
+    }
+
+    @NonNull
+    public static <T> List<T> asArrayList(@Nullable T... array) {
+        List<T> list = new ArrayList<>();
+        if (array == null || array.length == 0) return list;
+        list.addAll(Arrays.asList(array));
+        return list;
+    }
+
+    @NonNull
+    public static <T> List<T> asLinkedList(@Nullable T... array) {
+        List<T> list = new LinkedList<>();
+        if (array == null || array.length == 0) return list;
+        list.addAll(Arrays.asList(array));
+        return list;
+    }
+
+    public static <T> void sort(@Nullable T[] array, Comparator<? super T> c) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array, c);
+    }
+
+    public static void sort(@Nullable byte[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    public static void sort(@Nullable char[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    public static void sort(@Nullable double[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    public static void sort(@Nullable float[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    public static void sort(@Nullable int[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    public static void sort(@Nullable long[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    public static void sort(@Nullable short[] array) {
+        if (array == null || array.length < 2) return;
+        Arrays.sort(array);
+    }
+
+    /**
+     * Executes the given closure on each element in the array.
+     * <p>
+     * If the input array or closure is null, there is no change made.
+     *
+     * @param array   The array.
+     * @param closure the closure to perform, may be null
+     */
+    public static <E> void forAllDo(@Nullable Object array, @Nullable Closure<E> closure) {
+        if (array == null || closure == null) return;
+        if (array instanceof Object[]) {
+            Object[] objects = (Object[]) array;
+            for (int i = 0, length = objects.length; i < length; i++) {
+                Object ele = objects[i];
+                closure.execute(i, (E) ele);
+            }
+        } else if (array instanceof boolean[]) {
+            boolean[] booleans = (boolean[]) array;
+            for (int i = 0, length = booleans.length; i < length; i++) {
+                boolean ele = booleans[i];
+                closure.execute(i, (E) (ele ? Boolean.TRUE : Boolean.FALSE));
+            }
+        } else if (array instanceof byte[]) {
+            byte[] bytes = (byte[]) array;
+            for (int i = 0, length = bytes.length; i < length; i++) {
+                byte ele = bytes[i];
+                closure.execute(i, (E) Byte.valueOf(ele));
+            }
+        } else if (array instanceof char[]) {
+            char[] chars = (char[]) array;
+            for (int i = 0, length = chars.length; i < length; i++) {
+                char ele = chars[i];
+                closure.execute(i, (E) Character.valueOf(ele));
+            }
+        } else if (array instanceof short[]) {
+            short[] shorts = (short[]) array;
+            for (int i = 0, length = shorts.length; i < length; i++) {
+                short ele = shorts[i];
+                closure.execute(i, (E) Short.valueOf(ele));
+            }
+        } else if (array instanceof int[]) {
+            int[] ints = (int[]) array;
+            for (int i = 0, length = ints.length; i < length; i++) {
+                int ele = ints[i];
+                closure.execute(i, (E) Integer.valueOf(ele));
+            }
+        } else if (array instanceof long[]) {
+            long[] longs = (long[]) array;
+            for (int i = 0, length = longs.length; i < length; i++) {
+                long ele = longs[i];
+                closure.execute(i, (E) Long.valueOf(ele));
+            }
+        } else if (array instanceof float[]) {
+            float[] floats = (float[]) array;
+            for (int i = 0, length = floats.length; i < length; i++) {
+                float ele = floats[i];
+                closure.execute(i, (E) Float.valueOf(ele));
+            }
+        } else if (array instanceof double[]) {
+            double[] doubles = (double[]) array;
+            for (int i = 0, length = doubles.length; i < length; i++) {
+                double ele = doubles[i];
+                closure.execute(i, (E) Double.valueOf(ele));
+            }
+        } else {
+            throw new IllegalArgumentException("Not an array: " + array.getClass());
+        }
+    }
+
+    /**
+     * Return the string of array.
+     *
+     * @param array The array.
+     * @return the string of array
+     */
+    @NonNull
+    public static String toString(@Nullable Object array) {
+        if (array == null) return "null";
+        if (array instanceof Object[]) {
+            return Arrays.deepToString((Object[]) array);
+        } else if (array instanceof boolean[]) {
+            return Arrays.toString((boolean[]) array);
+        } else if (array instanceof byte[]) {
+            return Arrays.toString((byte[]) array);
+        } else if (array instanceof char[]) {
+            return Arrays.toString((char[]) array);
+        } else if (array instanceof double[]) {
+            return Arrays.toString((double[]) array);
+        } else if (array instanceof float[]) {
+            return Arrays.toString((float[]) array);
+        } else if (array instanceof int[]) {
+            return Arrays.toString((int[]) array);
+        } else if (array instanceof long[]) {
+            return Arrays.toString((long[]) array);
+        } else if (array instanceof short[]) {
+            return Arrays.toString((short[]) array);
+        }
+        throw new IllegalArgumentException("Array has incompatible type: " + array.getClass());
+    }
+
+    public interface Closure<E> {
+        void execute(int index, E item);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java
new file mode 100644
index 0000000000..e8cacc5f0c
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java
@@ -0,0 +1,740 @@
+package com.blankj.utilcode.util;
+
+import static android.Manifest.permission.EXPAND_STATUS_BAR;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Color;
+import android.graphics.Point;
+import android.os.Build;
+import android.provider.Settings;
+import android.util.TypedValue;
+import android.view.Display;
+import android.view.KeyCharacterMap;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
+import android.view.ViewGroup;
+import android.view.ViewGroup.MarginLayoutParams;
+import android.view.Window;
+import android.view.WindowManager;
+
+import androidx.annotation.ColorInt;
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
+import androidx.annotation.RequiresPermission;
+import androidx.drawerlayout.widget.DrawerLayout;
+
+import java.lang.reflect.Method;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/23
+ *     desc  : utils about bar
+ * </pre>
+ */
+public final class BarUtils {
+
+    ///////////////////////////////////////////////////////////////////////////
+    // status bar
+    ///////////////////////////////////////////////////////////////////////////
+
+    private static final String TAG_STATUS_BAR = "TAG_STATUS_BAR";
+    private static final String TAG_OFFSET = "TAG_OFFSET";
+    private static final int KEY_OFFSET = -123;
+
+    private BarUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return the status bar's height.
+     *
+     * @return the status bar's height
+     */
+    public static int getStatusBarHeight() {
+        Resources resources = Resources.getSystem();
+        int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
+        return resources.getDimensionPixelSize(resourceId);
+    }
+
+    /**
+     * Set the status bar's visibility.
+     *
+     * @param activity  The activity.
+     * @param isVisible True to set status bar visible, false otherwise.
+     */
+    public static void setStatusBarVisibility(@NonNull final Activity activity,
+                                              final boolean isVisible) {
+        setStatusBarVisibility(activity.getWindow(), isVisible);
+    }
+
+    /**
+     * Set the status bar's visibility.
+     *
+     * @param window    The window.
+     * @param isVisible True to set status bar visible, false otherwise.
+     */
+    public static void setStatusBarVisibility(@NonNull final Window window,
+                                              final boolean isVisible) {
+        if (isVisible) {
+            window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+            showStatusBarView(window);
+            addMarginTopEqualStatusBarHeight(window);
+        } else {
+            window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+            hideStatusBarView(window);
+            subtractMarginTopEqualStatusBarHeight(window);
+        }
+    }
+
+    /**
+     * Return whether the status bar is visible.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isStatusBarVisible(@NonNull final Activity activity) {
+        int flags = activity.getWindow().getAttributes().flags;
+        return (flags & WindowManager.LayoutParams.FLAG_FULLSCREEN) == 0;
+    }
+
+    /**
+     * Set the status bar's light mode.
+     *
+     * @param activity    The activity.
+     * @param isLightMode True to set status bar light mode, false otherwise.
+     */
+    public static void setStatusBarLightMode(@NonNull final Activity activity,
+                                             final boolean isLightMode) {
+        setStatusBarLightMode(activity.getWindow(), isLightMode);
+    }
+
+    /**
+     * Set the status bar's light mode.
+     *
+     * @param window      The window.
+     * @param isLightMode True to set status bar light mode, false otherwise.
+     */
+    public static void setStatusBarLightMode(@NonNull final Window window,
+                                             final boolean isLightMode) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            View decorView = window.getDecorView();
+            int vis = decorView.getSystemUiVisibility();
+            if (isLightMode) {
+                vis |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
+            } else {
+                vis &= ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
+            }
+            decorView.setSystemUiVisibility(vis);
+        }
+    }
+
+    /**
+     * Is the status bar light mode.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isStatusBarLightMode(@NonNull final Activity activity) {
+        return isStatusBarLightMode(activity.getWindow());
+    }
+
+    /**
+     * Is the status bar light mode.
+     *
+     * @param window The window.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isStatusBarLightMode(@NonNull final Window window) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            View decorView = window.getDecorView();
+            int vis = decorView.getSystemUiVisibility();
+            return (vis & View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) != 0;
+        }
+        return false;
+    }
+
+    /**
+     * Add the top margin size equals status bar's height for view.
+     *
+     * @param view The view.
+     */
+    public static void addMarginTopEqualStatusBarHeight(@NonNull View view) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        view.setTag(TAG_OFFSET);
+        Object haveSetOffset = view.getTag(KEY_OFFSET);
+        if (haveSetOffset != null && (Boolean) haveSetOffset) return;
+        MarginLayoutParams layoutParams = (MarginLayoutParams) view.getLayoutParams();
+        layoutParams.setMargins(layoutParams.leftMargin,
+                layoutParams.topMargin + getStatusBarHeight(),
+                layoutParams.rightMargin,
+                layoutParams.bottomMargin);
+        view.setTag(KEY_OFFSET, true);
+    }
+
+    /**
+     * Subtract the top margin size equals status bar's height for view.
+     *
+     * @param view The view.
+     */
+    public static void subtractMarginTopEqualStatusBarHeight(@NonNull View view) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        Object haveSetOffset = view.getTag(KEY_OFFSET);
+        if (haveSetOffset == null || !(Boolean) haveSetOffset) return;
+        MarginLayoutParams layoutParams = (MarginLayoutParams) view.getLayoutParams();
+        layoutParams.setMargins(layoutParams.leftMargin,
+                layoutParams.topMargin - getStatusBarHeight(),
+                layoutParams.rightMargin,
+                layoutParams.bottomMargin);
+        view.setTag(KEY_OFFSET, false);
+    }
+
+    private static void addMarginTopEqualStatusBarHeight(@NonNull final Window window) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        View withTag = window.getDecorView().findViewWithTag(TAG_OFFSET);
+        if (withTag == null) return;
+        addMarginTopEqualStatusBarHeight(withTag);
+    }
+
+    private static void subtractMarginTopEqualStatusBarHeight(@NonNull final Window window) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        View withTag = window.getDecorView().findViewWithTag(TAG_OFFSET);
+        if (withTag == null) return;
+        subtractMarginTopEqualStatusBarHeight(withTag);
+    }
+
+    /**
+     * Set the status bar's color.
+     *
+     * @param activity The activity.
+     * @param color    The status bar's color.
+     */
+    public static View setStatusBarColor(@NonNull final Activity activity,
+                                         @ColorInt final int color) {
+        return setStatusBarColor(activity, color, false);
+    }
+
+    /**
+     * Set the status bar's color.
+     *
+     * @param activity The activity.
+     * @param color    The status bar's color.
+     * @param isDecor  True to add fake status bar in DecorView,
+     *                 false to add fake status bar in ContentView.
+     */
+    public static View setStatusBarColor(@NonNull final Activity activity,
+                                         @ColorInt final int color,
+                                         final boolean isDecor) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return null;
+        transparentStatusBar(activity);
+        return applyStatusBarColor(activity, color, isDecor);
+    }
+
+
+    /**
+     * Set the status bar's color.
+     *
+     * @param window The window.
+     * @param color  The status bar's color.
+     */
+    public static View setStatusBarColor(@NonNull final Window window,
+                                         @ColorInt final int color) {
+        return setStatusBarColor(window, color, false);
+    }
+
+    /**
+     * Set the status bar's color.
+     *
+     * @param window  The window.
+     * @param color   The status bar's color.
+     * @param isDecor True to add fake status bar in DecorView,
+     *                false to add fake status bar in ContentView.
+     */
+    public static View setStatusBarColor(@NonNull final Window window,
+                                         @ColorInt final int color,
+                                         final boolean isDecor) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return null;
+        transparentStatusBar(window);
+        return applyStatusBarColor(window, color, isDecor);
+    }
+
+    /**
+     * Set the status bar's color.
+     *
+     * @param fakeStatusBar The fake status bar view.
+     * @param color         The status bar's color.
+     */
+    public static void setStatusBarColor(@NonNull final View fakeStatusBar,
+                                         @ColorInt final int color) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        Activity activity = UtilsBridge.getActivityByContext(fakeStatusBar.getContext());
+        if (activity == null) return;
+        transparentStatusBar(activity);
+        fakeStatusBar.setVisibility(View.VISIBLE);
+        ViewGroup.LayoutParams layoutParams = fakeStatusBar.getLayoutParams();
+        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
+        layoutParams.height = getStatusBarHeight();
+        fakeStatusBar.setBackgroundColor(color);
+    }
+
+    /**
+     * Set the custom status bar.
+     *
+     * @param fakeStatusBar The fake status bar view.
+     */
+    public static void setStatusBarCustom(@NonNull final View fakeStatusBar) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        Activity activity = UtilsBridge.getActivityByContext(fakeStatusBar.getContext());
+        if (activity == null) return;
+        transparentStatusBar(activity);
+        fakeStatusBar.setVisibility(View.VISIBLE);
+        ViewGroup.LayoutParams layoutParams = fakeStatusBar.getLayoutParams();
+        if (layoutParams == null) {
+            layoutParams = new ViewGroup.LayoutParams(
+                    ViewGroup.LayoutParams.MATCH_PARENT,
+                    getStatusBarHeight()
+            );
+            fakeStatusBar.setLayoutParams(layoutParams);
+        } else {
+            layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
+            layoutParams.height = getStatusBarHeight();
+        }
+    }
+
+    /**
+     * Set the status bar's color for DrawerLayout.
+     * <p>DrawLayout must add {@code android:fitsSystemWindows="true"}</p>
+     *
+     * @param drawer        The DrawLayout.
+     * @param fakeStatusBar The fake status bar view.
+     * @param color         The status bar's color.
+     */
+    public static void setStatusBarColor4Drawer(@NonNull final DrawerLayout drawer,
+                                                @NonNull final View fakeStatusBar,
+                                                @ColorInt final int color) {
+        setStatusBarColor4Drawer(drawer, fakeStatusBar, color, false);
+    }
+
+    /**
+     * Set the status bar's color for DrawerLayout.
+     * <p>DrawLayout must add {@code android:fitsSystemWindows="true"}</p>
+     *
+     * @param drawer        The DrawLayout.
+     * @param fakeStatusBar The fake status bar view.
+     * @param color         The status bar's color.
+     * @param isTop         True to set DrawerLayout at the top layer, false otherwise.
+     */
+    public static void setStatusBarColor4Drawer(@NonNull final DrawerLayout drawer,
+                                                @NonNull final View fakeStatusBar,
+                                                @ColorInt final int color,
+                                                final boolean isTop) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        Activity activity = UtilsBridge.getActivityByContext(fakeStatusBar.getContext());
+        if (activity == null) return;
+        transparentStatusBar(activity);
+        drawer.setFitsSystemWindows(false);
+        setStatusBarColor(fakeStatusBar, color);
+        for (int i = 0, count = drawer.getChildCount(); i < count; i++) {
+            drawer.getChildAt(i).setFitsSystemWindows(false);
+        }
+        if (isTop) {
+            hideStatusBarView(activity);
+        } else {
+            setStatusBarColor(activity, color, false);
+        }
+    }
+
+    private static View applyStatusBarColor(@NonNull final Activity activity,
+                                            final int color,
+                                            boolean isDecor) {
+        return applyStatusBarColor(activity.getWindow(), color, isDecor);
+    }
+
+    private static View applyStatusBarColor(@NonNull final Window window,
+                                            final int color,
+                                            boolean isDecor) {
+        ViewGroup parent = isDecor ?
+                (ViewGroup) window.getDecorView() :
+                (ViewGroup) window.findViewById(android.R.id.content);
+        View fakeStatusBarView = parent.findViewWithTag(TAG_STATUS_BAR);
+        if (fakeStatusBarView != null) {
+            if (fakeStatusBarView.getVisibility() == View.GONE) {
+                fakeStatusBarView.setVisibility(View.VISIBLE);
+            }
+            fakeStatusBarView.setBackgroundColor(color);
+        } else {
+            fakeStatusBarView = createStatusBarView(window.getContext(), color);
+            parent.addView(fakeStatusBarView);
+        }
+        return fakeStatusBarView;
+    }
+
+    private static void hideStatusBarView(@NonNull final Activity activity) {
+        hideStatusBarView(activity.getWindow());
+    }
+
+    private static void hideStatusBarView(@NonNull final Window window) {
+        ViewGroup decorView = (ViewGroup) window.getDecorView();
+        View fakeStatusBarView = decorView.findViewWithTag(TAG_STATUS_BAR);
+        if (fakeStatusBarView == null) return;
+        fakeStatusBarView.setVisibility(View.GONE);
+    }
+
+    private static void showStatusBarView(@NonNull final Window window) {
+        ViewGroup decorView = (ViewGroup) window.getDecorView();
+        View fakeStatusBarView = decorView.findViewWithTag(TAG_STATUS_BAR);
+        if (fakeStatusBarView == null) return;
+        fakeStatusBarView.setVisibility(View.VISIBLE);
+    }
+
+    private static View createStatusBarView(@NonNull final Context context,
+                                            final int color) {
+        View statusBarView = new View(context);
+        statusBarView.setLayoutParams(new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight()));
+        statusBarView.setBackgroundColor(color);
+        statusBarView.setTag(TAG_STATUS_BAR);
+        return statusBarView;
+    }
+
+    public static void transparentStatusBar(@NonNull final Activity activity) {
+        transparentStatusBar(activity.getWindow());
+    }
+
+    public static void transparentStatusBar(@NonNull final Window window) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
+            int option = View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
+            int vis = window.getDecorView().getSystemUiVisibility();
+            window.getDecorView().setSystemUiVisibility(option | vis);
+            window.setStatusBarColor(Color.TRANSPARENT);
+        } else {
+            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // action bar
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Return the action bar's height.
+     *
+     * @return the action bar's height
+     */
+    public static int getActionBarHeight() {
+        TypedValue tv = new TypedValue();
+        if (Utils.getApp().getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
+            return TypedValue.complexToDimensionPixelSize(
+                    tv.data, Utils.getApp().getResources().getDisplayMetrics()
+            );
+        }
+        return 0;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // notification bar
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Set the notification bar's visibility.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />}</p>
+     *
+     * @param isVisible True to set notification bar visible, false otherwise.
+     */
+    @RequiresPermission(EXPAND_STATUS_BAR)
+    public static void setNotificationBarVisibility(final boolean isVisible) {
+        String methodName;
+        if (isVisible) {
+            methodName = (Build.VERSION.SDK_INT <= 16) ? "expand" : "expandNotificationsPanel";
+        } else {
+            methodName = (Build.VERSION.SDK_INT <= 16) ? "collapse" : "collapsePanels";
+        }
+        invokePanels(methodName);
+    }
+
+    private static void invokePanels(final String methodName) {
+        try {
+            @SuppressLint("WrongConstant")
+            Object service = Utils.getApp().getSystemService("statusbar");
+            @SuppressLint("PrivateApi")
+            Class<?> statusBarManager = Class.forName("android.app.StatusBarManager");
+            Method expand = statusBarManager.getMethod(methodName);
+            expand.invoke(service);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // navigation bar
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Return the navigation bar's height.
+     *
+     * @return the navigation bar's height
+     */
+    public static int getNavBarHeight() {
+        Resources res = Resources.getSystem();
+        int resourceId = res.getIdentifier("navigation_bar_height", "dimen", "android");
+        if (resourceId != 0) {
+            return res.getDimensionPixelSize(resourceId);
+        } else {
+            return 0;
+        }
+    }
+
+    /**
+     * Set the navigation bar's visibility.
+     *
+     * @param activity  The activity.
+     * @param isVisible True to set navigation bar visible, false otherwise.
+     */
+    public static void setNavBarVisibility(@NonNull final Activity activity, boolean isVisible) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        setNavBarVisibility(activity.getWindow(), isVisible);
+
+    }
+
+    /**
+     * Set the navigation bar's visibility.
+     *
+     * @param window    The window.
+     * @param isVisible True to set navigation bar visible, false otherwise.
+     */
+    public static void setNavBarVisibility(@NonNull final Window window, boolean isVisible) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
+        final ViewGroup decorView = (ViewGroup) window.getDecorView();
+        for (int i = 0, count = decorView.getChildCount(); i < count; i++) {
+            final View child = decorView.getChildAt(i);
+            final int id = child.getId();
+            if (id != View.NO_ID) {
+                String resourceEntryName = getResNameById(id);
+                if ("navigationBarBackground".equals(resourceEntryName)) {
+                    child.setVisibility(isVisible ? View.VISIBLE : View.INVISIBLE);
+                }
+            }
+        }
+        final int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
+        if (isVisible) {
+            decorView.setSystemUiVisibility(decorView.getSystemUiVisibility() & ~uiOptions);
+        } else {
+            decorView.setSystemUiVisibility(decorView.getSystemUiVisibility() | uiOptions);
+        }
+    }
+
+    /**
+     * Return whether the navigation bar visible.
+     * <p>Call it in onWindowFocusChanged will get right result.</p>
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isNavBarVisible(@NonNull final Activity activity) {
+        return isNavBarVisible(activity.getWindow());
+    }
+
+    /**
+     * Return whether the navigation bar visible.
+     * <p>Call it in onWindowFocusChanged will get right result.</p>
+     *
+     * @param window The window.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isNavBarVisible(@NonNull final Window window) {
+        boolean isVisible = false;
+        ViewGroup decorView = (ViewGroup) window.getDecorView();
+        for (int i = 0, count = decorView.getChildCount(); i < count; i++) {
+            final View child = decorView.getChildAt(i);
+            final int id = child.getId();
+            if (id != View.NO_ID) {
+                String resourceEntryName = getResNameById(id);
+                if ("navigationBarBackground".equals(resourceEntryName)
+                        && child.getVisibility() == View.VISIBLE) {
+                    isVisible = true;
+                    break;
+                }
+            }
+        }
+        if (isVisible) {
+            // 对于三星手机，android10以下非OneUI2的版本，比如 s8，note8 等设备上，
+            // 导航栏显示存在bug："当用户隐藏导航栏时显示输入法的时候导航栏会跟随显示"，会导致隐藏输入法之后判断错误
+            // 这个问题在 OneUI 2 & android 10 版本已修复
+            if (UtilsBridge.isSamsung()
+                    && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1
+                    && Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+                try {
+                    return Settings.Global.getInt(Utils.getApp().getContentResolver(), "navigationbar_hide_bar_enabled") == 0;
+                } catch (Exception ignore) {
+                }
+            }
+
+            int visibility = decorView.getSystemUiVisibility();
+            isVisible = (visibility & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;
+        }
+
+        return isVisible;
+    }
+
+    private static String getResNameById(int id) {
+        try {
+            return Utils.getApp().getResources().getResourceEntryName(id);
+        } catch (Exception ignore) {
+            return "";
+        }
+    }
+
+    /**
+     * Set the navigation bar's color.
+     *
+     * @param activity The activity.
+     * @param color    The navigation bar's color.
+     */
+    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+    public static void setNavBarColor(@NonNull final Activity activity, @ColorInt final int color) {
+        setNavBarColor(activity.getWindow(), color);
+    }
+
+    /**
+     * Set the navigation bar's color.
+     *
+     * @param window The window.
+     * @param color  The navigation bar's color.
+     */
+    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+    public static void setNavBarColor(@NonNull final Window window, @ColorInt final int color) {
+        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
+        window.setNavigationBarColor(color);
+    }
+
+    /**
+     * Return the color of navigation bar.
+     *
+     * @param activity The activity.
+     * @return the color of navigation bar
+     */
+    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+    public static int getNavBarColor(@NonNull final Activity activity) {
+        return getNavBarColor(activity.getWindow());
+    }
+
+    /**
+     * Return the color of navigation bar.
+     *
+     * @param window The window.
+     * @return the color of navigation bar
+     */
+    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+    public static int getNavBarColor(@NonNull final Window window) {
+        return window.getNavigationBarColor();
+    }
+
+    /**
+     * Return whether the navigation bar visible.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSupportNavBar() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+            if (wm == null) return false;
+            Display display = wm.getDefaultDisplay();
+            Point size = new Point();
+            Point realSize = new Point();
+            display.getSize(size);
+            display.getRealSize(realSize);
+            return realSize.y != size.y || realSize.x != size.x;
+        }
+        boolean menu = ViewConfiguration.get(Utils.getApp()).hasPermanentMenuKey();
+        boolean back = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);
+        return !menu && !back;
+    }
+
+    /**
+     * Set the nav bar's light mode.
+     *
+     * @param activity    The activity.
+     * @param isLightMode True to set nav bar light mode, false otherwise.
+     */
+    public static void setNavBarLightMode(@NonNull final Activity activity,
+                                          final boolean isLightMode) {
+        setNavBarLightMode(activity.getWindow(), isLightMode);
+    }
+
+    /**
+     * Set the nav bar's light mode.
+     *
+     * @param window      The window.
+     * @param isLightMode True to set nav bar light mode, false otherwise.
+     */
+    public static void setNavBarLightMode(@NonNull final Window window,
+                                          final boolean isLightMode) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            View decorView = window.getDecorView();
+            int vis = decorView.getSystemUiVisibility();
+            if (isLightMode) {
+                vis |= View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
+            } else {
+                vis &= ~View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
+            }
+            decorView.setSystemUiVisibility(vis);
+        }
+    }
+
+    /**
+     * Is the nav bar light mode.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isNavBarLightMode(@NonNull final Activity activity) {
+        return isNavBarLightMode(activity.getWindow());
+    }
+
+    /**
+     * Is the nav bar light mode.
+     *
+     * @param window The window.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isNavBarLightMode(@NonNull final Window window) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            View decorView = window.getDecorView();
+            int vis = decorView.getSystemUiVisibility();
+            return (vis & View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR) != 0;
+        }
+        return false;
+    }
+
+    public static void transparentNavBar(@NonNull final Activity activity) {
+        transparentNavBar(activity.getWindow());
+    }
+
+    public static void transparentNavBar(@NonNull final Window window) {
+        if (Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.JELLY_BEAN) return;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            window.setNavigationBarContrastEnforced(false);
+        }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            window.setNavigationBarColor(Color.TRANSPARENT);
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            if ((window.getAttributes().flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) == 0) {
+                window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+            }
+        }
+        View decorView = window.getDecorView();
+        int vis = decorView.getSystemUiVisibility();
+        int option = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
+        decorView.setSystemUiVisibility(vis | option);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/BrightnessUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/BrightnessUtils.java
new file mode 100644
index 0000000000..08dd46ff9b
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/BrightnessUtils.java
@@ -0,0 +1,115 @@
+package com.blankj.utilcode.util;
+
+import android.content.ContentResolver;
+import android.provider.Settings;
+import android.view.Window;
+import android.view.WindowManager;
+
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/02/08
+ *     desc  : utils about brightness
+ * </pre>
+ */
+public final class BrightnessUtils {
+
+    private BrightnessUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether automatic brightness mode is enabled.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAutoBrightnessEnabled() {
+        try {
+            int mode = Settings.System.getInt(
+                    Utils.getApp().getContentResolver(),
+                    Settings.System.SCREEN_BRIGHTNESS_MODE
+            );
+            return mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
+        } catch (Settings.SettingNotFoundException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Enable or disable automatic brightness mode.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.WRITE_SETTINGS" />}</p>
+     *
+     * @param enabled True to enabled, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean setAutoBrightnessEnabled(final boolean enabled) {
+        return Settings.System.putInt(
+                Utils.getApp().getContentResolver(),
+                Settings.System.SCREEN_BRIGHTNESS_MODE,
+                enabled ? Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC
+                        : Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL
+        );
+    }
+
+    /**
+     * 获取屏幕亮度
+     *
+     * @return 屏幕亮度 0-255
+     */
+    public static int getBrightness() {
+        try {
+            return Settings.System.getInt(
+                    Utils.getApp().getContentResolver(),
+                    Settings.System.SCREEN_BRIGHTNESS
+            );
+        } catch (Settings.SettingNotFoundException e) {
+            e.printStackTrace();
+            return 0;
+        }
+    }
+
+    /**
+     * 设置屏幕亮度
+     * <p>需添加权限 {@code <uses-permission android:name="android.permission.WRITE_SETTINGS" />}</p>
+     * 并得到授权
+     *
+     * @param brightness 亮度值
+     */
+    public static boolean setBrightness(@IntRange(from = 0, to = 255) final int brightness) {
+        ContentResolver resolver = Utils.getApp().getContentResolver();
+        boolean b = Settings.System.putInt(resolver, Settings.System.SCREEN_BRIGHTNESS, brightness);
+        resolver.notifyChange(Settings.System.getUriFor("screen_brightness"), null);
+        return b;
+    }
+
+    /**
+     * 设置窗口亮度
+     *
+     * @param window     窗口
+     * @param brightness 亮度值
+     */
+    public static void setWindowBrightness(@NonNull final Window window,
+                                           @IntRange(from = 0, to = 255) final int brightness) {
+        WindowManager.LayoutParams lp = window.getAttributes();
+        lp.screenBrightness = brightness / 255f;
+        window.setAttributes(lp);
+    }
+
+    /**
+     * 获取窗口亮度
+     *
+     * @param window 窗口
+     * @return 屏幕亮度 0-255
+     */
+    public static int getWindowBrightness(@NonNull final Window window) {
+        WindowManager.LayoutParams lp = window.getAttributes();
+        float brightness = lp.screenBrightness;
+        if (brightness < 0) return getBrightness();
+        return (int) (brightness * 255);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/BusUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/BusUtils.java
new file mode 100644
index 0000000000..537a55fd92
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/BusUtils.java
@@ -0,0 +1,459 @@
+package com.blankj.utilcode.util;
+
+import android.util.Log;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.CopyOnWriteArraySet;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/10/02
+ *     desc  : utils about bus
+ * </pre>
+ */
+public final class BusUtils {
+
+    private static final Object NULL = "nULl";
+    private static final String TAG  = "BusUtils";
+
+    private final Map<String, List<BusInfo>>       mTag_BusInfoListMap          = new ConcurrentHashMap<>();
+    private final Map<String, Set<Object>>         mClassName_BusesMap          = new ConcurrentHashMap<>();
+    private final Map<String, List<String>>        mClassName_TagsMap           = new ConcurrentHashMap<>();
+    private final Map<String, Map<String, Object>> mClassName_Tag_Arg4StickyMap = new ConcurrentHashMap<>();
+
+    private BusUtils() {
+        init();
+    }
+
+    /**
+     * It'll be injected the bus who have {@link Bus} annotation
+     * by function of {@link BusUtils#registerBus} when execute transform task.
+     */
+    private void init() {/*inject*/}
+
+    private void registerBus(String tag,
+                             String className, String funName, String paramType, String paramName,
+                             boolean sticky, String threadMode) {
+        registerBus(tag, className, funName, paramType, paramName, sticky, threadMode, 0);
+    }
+
+    private void registerBus(String tag,
+                             String className, String funName, String paramType, String paramName,
+                             boolean sticky, String threadMode, int priority) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            busInfoList = new CopyOnWriteArrayList<>();
+            mTag_BusInfoListMap.put(tag, busInfoList);
+        }
+        busInfoList.add(new BusInfo(tag, className, funName, paramType, paramName, sticky, threadMode, priority));
+    }
+
+    public static void register(@Nullable final Object bus) {
+        getInstance().registerInner(bus);
+    }
+
+    public static void unregister(@Nullable final Object bus) {
+        getInstance().unregisterInner(bus);
+    }
+
+    public static void post(@NonNull final String tag) {
+        post(tag, NULL);
+    }
+
+    public static void post(@NonNull final String tag, @NonNull final Object arg) {
+        getInstance().postInner(tag, arg);
+    }
+
+    public static void postSticky(@NonNull final String tag) {
+        postSticky(tag, NULL);
+    }
+
+    public static void postSticky(@NonNull final String tag, final Object arg) {
+        getInstance().postStickyInner(tag, arg);
+    }
+
+    public static void removeSticky(final String tag) {
+        getInstance().removeStickyInner(tag);
+    }
+
+    public static String toString_() {
+        return getInstance().toString();
+    }
+
+    @Override
+    public String toString() {
+        return "BusUtils: " + mTag_BusInfoListMap;
+    }
+
+    private static BusUtils getInstance() {
+        return LazyHolder.INSTANCE;
+    }
+
+    private void registerInner(@Nullable final Object bus) {
+        if (bus == null) return;
+        Class<?> aClass = bus.getClass();
+        String className = aClass.getName();
+        boolean isNeedRecordTags = false;
+        synchronized (mClassName_BusesMap) {
+            Set<Object> buses = mClassName_BusesMap.get(className);
+            if (buses == null) {
+                buses = new CopyOnWriteArraySet<>();
+                mClassName_BusesMap.put(className, buses);
+                isNeedRecordTags = true;
+            }
+            if (buses.contains(bus)) {
+                Log.w(TAG, "The bus of <" + bus + "> already registered.");
+                return;
+            } else {
+                buses.add(bus);
+            }
+        }
+        if (isNeedRecordTags) {
+            recordTags(aClass, className);
+        }
+        consumeStickyIfExist(bus);
+    }
+
+    private void recordTags(Class<?> aClass, String className) {
+        List<String> tags = mClassName_TagsMap.get(className);
+        if (tags == null) {
+            synchronized (mClassName_TagsMap) {
+                tags = mClassName_TagsMap.get(className);
+                if (tags == null) {
+                    tags = new CopyOnWriteArrayList<>();
+                    for (Map.Entry<String, List<BusInfo>> entry : mTag_BusInfoListMap.entrySet()) {
+                        for (BusInfo busInfo : entry.getValue()) {
+                            try {
+                                if (Class.forName(busInfo.className).isAssignableFrom(aClass)) {
+                                    tags.add(entry.getKey());
+                                    busInfo.subClassNames.add(className);
+                                }
+                            } catch (ClassNotFoundException e) {
+                                e.printStackTrace();
+                            }
+                        }
+                    }
+                    mClassName_TagsMap.put(className, tags);
+                }
+            }
+        }
+    }
+
+    private void consumeStickyIfExist(final Object bus) {
+        Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(bus.getClass().getName());
+        if (tagArgMap == null) return;
+        synchronized (mClassName_Tag_Arg4StickyMap) {
+            for (Map.Entry<String, Object> tagArgEntry : tagArgMap.entrySet()) {
+                consumeSticky(bus, tagArgEntry.getKey(), tagArgEntry.getValue());
+            }
+        }
+    }
+
+    private void consumeSticky(final Object bus, final String tag, final Object arg) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            Log.e(TAG, "The bus of tag <" + tag + "> is not exists.");
+            return;
+        }
+        for (BusInfo busInfo : busInfoList) {
+            if (!busInfo.subClassNames.contains(bus.getClass().getName())) {
+                continue;
+            }
+            if (!busInfo.sticky) {
+                continue;
+            }
+
+            synchronized (mClassName_Tag_Arg4StickyMap) {
+                Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(busInfo.className);
+                if (tagArgMap == null || !tagArgMap.containsKey(tag)) {
+                    continue;
+                }
+                invokeBus(bus, arg, busInfo, true);
+            }
+        }
+    }
+
+    private void unregisterInner(final Object bus) {
+        if (bus == null) return;
+        String className = bus.getClass().getName();
+        synchronized (mClassName_BusesMap) {
+            Set<Object> buses = mClassName_BusesMap.get(className);
+            if (buses == null || !buses.contains(bus)) {
+                Log.e(TAG, "The bus of <" + bus + "> was not registered before.");
+                return;
+            }
+            buses.remove(bus);
+        }
+    }
+
+    private void postInner(final String tag, final Object arg) {
+        postInner(tag, arg, false);
+    }
+
+    private void postInner(final String tag, final Object arg, final boolean sticky) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            Log.e(TAG, "The bus of tag <" + tag + "> is not exists.");
+            if (mTag_BusInfoListMap.isEmpty()) {
+                Log.e(TAG, "Please check whether the bus plugin is applied.");
+            }
+            return;
+        }
+        for (BusInfo busInfo : busInfoList) {
+            invokeBus(arg, busInfo, sticky);
+        }
+    }
+
+    private void invokeBus(Object arg, BusInfo busInfo, boolean sticky) {
+        invokeBus(null, arg, busInfo, sticky);
+    }
+
+    private void invokeBus(Object bus, Object arg, BusInfo busInfo, boolean sticky) {
+        if (busInfo.method == null) {
+            Method method = getMethodByBusInfo(busInfo);
+            if (method == null) {
+                return;
+            }
+            busInfo.method = method;
+        }
+        invokeMethod(bus, arg, busInfo, sticky);
+    }
+
+    private Method getMethodByBusInfo(BusInfo busInfo) {
+        try {
+            if ("".equals(busInfo.paramType)) {
+                return Class.forName(busInfo.className).getDeclaredMethod(busInfo.funName);
+            } else {
+                return Class.forName(busInfo.className).getDeclaredMethod(busInfo.funName, getClassName(busInfo.paramType));
+            }
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    private Class getClassName(String paramType) throws ClassNotFoundException {
+        switch (paramType) {
+            case "boolean":
+                return boolean.class;
+            case "int":
+                return int.class;
+            case "long":
+                return long.class;
+            case "short":
+                return short.class;
+            case "byte":
+                return byte.class;
+            case "double":
+                return double.class;
+            case "float":
+                return float.class;
+            case "char":
+                return char.class;
+            default:
+                return Class.forName(paramType);
+        }
+    }
+
+    private void invokeMethod(final Object arg, final BusInfo busInfo, final boolean sticky) {
+        invokeMethod(null, arg, busInfo, sticky);
+    }
+
+    private void invokeMethod(final Object bus, final Object arg, final BusInfo busInfo, final boolean sticky) {
+        Runnable runnable = new Runnable() {
+            @Override
+            public void run() {
+                realInvokeMethod(bus, arg, busInfo, sticky);
+            }
+        };
+        switch (busInfo.threadMode) {
+            case "MAIN":
+                ThreadUtils.runOnUiThread(runnable);
+                return;
+            case "IO":
+                ThreadUtils.getIoPool().execute(runnable);
+                return;
+            case "CPU":
+                ThreadUtils.getCpuPool().execute(runnable);
+                return;
+            case "CACHED":
+                ThreadUtils.getCachedPool().execute(runnable);
+                return;
+            case "SINGLE":
+                ThreadUtils.getSinglePool().execute(runnable);
+                return;
+            default:
+                runnable.run();
+        }
+    }
+
+    private void realInvokeMethod(Object bus, Object arg, BusInfo busInfo, boolean sticky) {
+        Set<Object> buses = new HashSet<>();
+        if (bus == null) {
+            for (String subClassName : busInfo.subClassNames) {
+                Set<Object> subBuses = mClassName_BusesMap.get(subClassName);
+                if (subBuses != null && !subBuses.isEmpty()) {
+                    buses.addAll(subBuses);
+                }
+            }
+            if (buses.size() == 0) {
+                if (!sticky) {
+                    Log.e(TAG, "The " + busInfo + " was not registered before.");
+                }
+                return;
+            }
+        } else {
+            buses.add(bus);
+        }
+        invokeBuses(arg, busInfo, buses);
+    }
+
+    private void invokeBuses(Object arg, BusInfo busInfo, Set<Object> buses) {
+        try {
+            if (arg == NULL) {
+                for (Object bus : buses) {
+                    busInfo.method.invoke(bus);
+                }
+            } else {
+                for (Object bus : buses) {
+                    busInfo.method.invoke(bus, arg);
+                }
+            }
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void postStickyInner(final String tag, final Object arg) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            Log.e(TAG, "The bus of tag <" + tag + "> is not exists.");
+            return;
+        }
+        // 获取多对象，然后消费各个 busInfoList
+        for (BusInfo busInfo : busInfoList) {
+            if (!busInfo.sticky) { // not sticky bus will post directly.
+                invokeBus(arg, busInfo, false);
+                continue;
+            }
+            synchronized (mClassName_Tag_Arg4StickyMap) {
+                Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(busInfo.className);
+                if (tagArgMap == null) {
+                    tagArgMap = new ConcurrentHashMap<>();
+                    mClassName_Tag_Arg4StickyMap.put(busInfo.className, tagArgMap);
+                }
+                tagArgMap.put(tag, arg);
+            }
+            invokeBus(arg, busInfo, true);
+        }
+    }
+
+    private void removeStickyInner(final String tag) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            Log.e(TAG, "The bus of tag <" + tag + "> is not exists.");
+            return;
+        }
+        for (BusInfo busInfo : busInfoList) {
+            if (!busInfo.sticky) {
+                continue;
+            }
+            synchronized (mClassName_Tag_Arg4StickyMap) {
+                Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(busInfo.className);
+                if (tagArgMap == null || !tagArgMap.containsKey(tag)) {
+                    return;
+                }
+                tagArgMap.remove(tag);
+            }
+        }
+    }
+
+    static void registerBus4Test(String tag,
+                                 String className, String funName, String paramType, String paramName,
+                                 boolean sticky, String threadMode, int priority) {
+        getInstance().registerBus(tag, className, funName, paramType, paramName, sticky, threadMode, priority);
+    }
+
+    private static final class BusInfo {
+
+        String       tag;
+        String       className;
+        String       funName;
+        String       paramType;
+        String       paramName;
+        boolean      sticky;
+        String       threadMode;
+        int          priority;
+        Method       method;
+        List<String> subClassNames;
+
+        BusInfo(String tag, String className, String funName, String paramType, String paramName,
+                boolean sticky, String threadMode, int priority) {
+            this.tag = tag;
+            this.className = className;
+            this.funName = funName;
+            this.paramType = paramType;
+            this.paramName = paramName;
+            this.sticky = sticky;
+            this.threadMode = threadMode;
+            this.priority = priority;
+            this.subClassNames = new CopyOnWriteArrayList<>();
+        }
+
+        @Override
+        public String toString() {
+            return "BusInfo { tag : " + tag +
+                    ", desc: " + getDesc() +
+                    ", sticky: " + sticky +
+                    ", threadMode: " + threadMode +
+                    ", method: " + method +
+                    ", priority: " + priority +
+                    " }";
+        }
+
+        private String getDesc() {
+            return className + "#" + funName +
+                    ("".equals(paramType) ? "()" : ("(" + paramType + " " + paramName + ")"));
+        }
+    }
+
+    public enum ThreadMode {
+        MAIN, IO, CPU, CACHED, SINGLE, POSTING
+    }
+
+    @Target({ElementType.METHOD})
+    @Retention(RetentionPolicy.CLASS)
+    public @interface Bus {
+        String tag();
+
+        boolean sticky() default false;
+
+        ThreadMode threadMode() default ThreadMode.POSTING;
+
+        int priority() default 0;
+    }
+
+    private static class LazyHolder {
+        private static final BusUtils INSTANCE = new BusUtils();
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskStaticUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskStaticUtils.java
new file mode 100644
index 0000000000..23100f60b0
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskStaticUtils.java
@@ -0,0 +1,958 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.os.Parcelable;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.io.Serializable;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/04
+ *     desc  : utils about disk cache
+ * </pre>
+ */
+public final class CacheDiskStaticUtils {
+
+    private static CacheDiskUtils sDefaultCacheDiskUtils;
+
+    /**
+     * Set the default instance of {@link CacheDiskUtils}.
+     *
+     * @param cacheDiskUtils The default instance of {@link CacheDiskUtils}.
+     */
+    public static void setDefaultCacheDiskUtils(@Nullable final CacheDiskUtils cacheDiskUtils) {
+        sDefaultCacheDiskUtils = cacheDiskUtils;
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final byte[] value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final byte[] value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key The key of cache.
+     * @return the bytes if cache exists or null otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key) {
+        return getBytes(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bytes if cache exists or defaultValue otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key, @Nullable final byte[] defaultValue) {
+        return getBytes(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about String
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final String value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final String value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key The key of cache.
+     * @return the string value if cache exists or null otherwise
+     */
+    public static String getString(@NonNull final String key) {
+        return getString(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the string value if cache exists or defaultValue otherwise
+     */
+    public static String getString(@NonNull final String key, @Nullable final String defaultValue) {
+        return getString(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONObject
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final JSONObject value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final JSONObject value,
+                           final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key The key of cache.
+     * @return the JSONObject if cache exists or null otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key) {
+        return getJSONObject(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the JSONObject if cache exists or defaultValue otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key, @Nullable final JSONObject defaultValue) {
+        return getJSONObject(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONArray
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final JSONArray value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final JSONArray value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key The key of cache.
+     * @return the JSONArray if cache exists or null otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key) {
+        return getJSONArray(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the JSONArray if cache exists or defaultValue otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key, @Nullable final JSONArray defaultValue) {
+        return getJSONArray(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Bitmap
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final Bitmap value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final Bitmap value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key The key of cache.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key) {
+        return getBitmap(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key, @Nullable final Bitmap defaultValue) {
+        return getBitmap(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Drawable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final Drawable value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final Drawable value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key The key of cache.
+     * @return the drawable if cache exists or null otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key) {
+        return getDrawable(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the drawable if cache exists or defaultValue otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key, final @Nullable Drawable defaultValue) {
+        return getDrawable(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Parcelable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final Parcelable value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final Parcelable value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key     The key of cache.
+     * @param creator The creator.
+     * @param <T>     The value type.
+     * @return the parcelable if cache exists or null otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator) {
+        return getParcelable(key, creator, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key          The key of cache.
+     * @param creator      The creator.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @param <T>          The value type.
+     * @return the parcelable if cache exists or defaultValue otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator,
+                                      @Nullable final T defaultValue) {
+        return getParcelable(key, creator, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Serializable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, @Nullable final Serializable value) {
+        put(key, value, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, @Nullable final Serializable value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key The key of cache.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Object getSerializable(@NonNull final String key) {
+        return getSerializable(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Object getSerializable(@NonNull final String key, @Nullable final Object defaultValue) {
+        return getSerializable(key, defaultValue, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the size of cache, in bytes.
+     *
+     * @return the size of cache, in bytes
+     */
+    public static long getCacheSize() {
+        return getCacheSize(getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Return the count of cache.
+     *
+     * @return the count of cache
+     */
+    public static int getCacheCount() {
+        return getCacheCount(getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key The key of cache.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean remove(@NonNull final String key) {
+        return remove(key, getDefaultCacheDiskUtils());
+    }
+
+    /**
+     * Clear all of the cache.
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean clear() {
+        return clear(getDefaultCacheDiskUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // dividing line
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final byte[] value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final byte[] value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the bytes if cache exists or null otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getBytes(key);
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the bytes if cache exists or defaultValue otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key,
+                                  @Nullable final byte[] defaultValue,
+                                  @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getBytes(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about String
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final String value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final String value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the string value if cache exists or null otherwise
+     */
+    public static String getString(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getString(key);
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the string value if cache exists or defaultValue otherwise
+     */
+    public static String getString(@NonNull final String key,
+                                   @Nullable final String defaultValue,
+                                   @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getString(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONObject
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final JSONObject value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final JSONObject value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the JSONObject if cache exists or null otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getJSONObject(key);
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the JSONObject if cache exists or defaultValue otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key,
+                                           @Nullable final JSONObject defaultValue,
+                                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getJSONObject(key, defaultValue);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONArray
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final JSONArray value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final JSONArray value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the JSONArray if cache exists or null otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getJSONArray(key);
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the JSONArray if cache exists or defaultValue otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key,
+                                         @Nullable final JSONArray defaultValue,
+                                         @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getJSONArray(key, defaultValue);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Bitmap
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Bitmap value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Bitmap value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getBitmap(key);
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key,
+                                   @Nullable final Bitmap defaultValue,
+                                   @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getBitmap(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Drawable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Drawable value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Drawable value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the drawable if cache exists or null otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getDrawable(key);
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the drawable if cache exists or defaultValue otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key,
+                                       @Nullable final Drawable defaultValue,
+                                       @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getDrawable(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Parcelable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Parcelable value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Parcelable value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key            The key of cache.
+     * @param creator        The creator.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @param <T>            The value type.
+     * @return the parcelable if cache exists or null otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator,
+                                      @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getParcelable(key, creator);
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key            The key of cache.
+     * @param creator        The creator.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @param <T>            The value type.
+     * @return the parcelable if cache exists or defaultValue otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator,
+                                      @Nullable final T defaultValue,
+                                      @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getParcelable(key, creator, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Serializable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Serializable value,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value);
+    }
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key            The key of cache.
+     * @param value          The value of cache.
+     * @param saveTime       The save time of cache, in seconds.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           @Nullable final Serializable value,
+                           final int saveTime,
+                           @NonNull final CacheDiskUtils cacheDiskUtils) {
+        cacheDiskUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Object getSerializable(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getSerializable(key);
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key            The key of cache.
+     * @param defaultValue   The default value if the cache doesn't exist.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Object getSerializable(@NonNull final String key,
+                                         @Nullable final Object defaultValue,
+                                         @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getSerializable(key, defaultValue);
+    }
+
+    /**
+     * Return the size of cache, in bytes.
+     *
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the size of cache, in bytes
+     */
+    public static long getCacheSize(@NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getCacheSize();
+    }
+
+    /**
+     * Return the count of cache.
+     *
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return the count of cache
+     */
+    public static int getCacheCount(@NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.getCacheCount();
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key            The key of cache.
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean remove(@NonNull final String key, @NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.remove(key);
+    }
+
+    /**
+     * Clear all of the cache.
+     *
+     * @param cacheDiskUtils The instance of {@link CacheDiskUtils}.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean clear(@NonNull final CacheDiskUtils cacheDiskUtils) {
+        return cacheDiskUtils.clear();
+    }
+
+    @NonNull
+    private static CacheDiskUtils getDefaultCacheDiskUtils() {
+        return sDefaultCacheDiskUtils != null ? sDefaultCacheDiskUtils : CacheDiskUtils.getInstance();
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
new file mode 100644
index 0000000000..773e550a16
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
@@ -0,0 +1,875 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.os.Parcelable;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+
+import com.blankj.utilcode.constant.CacheConstants;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.io.Serializable;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/05/24
+ *     desc  : utils about disk cache
+ * </pre>
+ */
+public final class CacheDiskUtils implements CacheConstants {
+
+    private static final long   DEFAULT_MAX_SIZE  = Long.MAX_VALUE;
+    private static final int    DEFAULT_MAX_COUNT = Integer.MAX_VALUE;
+    private static final String CACHE_PREFIX      = "cdu_";
+    private static final String TYPE_BYTE         = "by_";
+    private static final String TYPE_STRING       = "st_";
+    private static final String TYPE_JSON_OBJECT  = "jo_";
+    private static final String TYPE_JSON_ARRAY   = "ja_";
+    private static final String TYPE_BITMAP       = "bi_";
+    private static final String TYPE_DRAWABLE     = "dr_";
+    private static final String TYPE_PARCELABLE   = "pa_";
+    private static final String TYPE_SERIALIZABLE = "se_";
+
+    private static final Map<String, CacheDiskUtils> CACHE_MAP = new HashMap<>();
+
+    private final String           mCacheKey;
+    private final File             mCacheDir;
+    private final long             mMaxSize;
+    private final int              mMaxCount;
+    private       DiskCacheManager mDiskCacheManager;
+
+    /**
+     * Return the single {@link CacheDiskUtils} instance.
+     * <p>cache directory: /data/data/package/cache/cacheUtils</p>
+     * <p>cache size: unlimited</p>
+     * <p>cache count: unlimited</p>
+     *
+     * @return the single {@link CacheDiskUtils} instance
+     */
+    public static CacheDiskUtils getInstance() {
+        return getInstance("", DEFAULT_MAX_SIZE, DEFAULT_MAX_COUNT);
+    }
+
+    /**
+     * Return the single {@link CacheDiskUtils} instance.
+     * <p>cache directory: /data/data/package/cache/cacheUtils</p>
+     * <p>cache size: unlimited</p>
+     * <p>cache count: unlimited</p>
+     *
+     * @param cacheName The name of cache.
+     * @return the single {@link CacheDiskUtils} instance
+     */
+    public static CacheDiskUtils getInstance(final String cacheName) {
+        return getInstance(cacheName, DEFAULT_MAX_SIZE, DEFAULT_MAX_COUNT);
+    }
+
+    /**
+     * Return the single {@link CacheDiskUtils} instance.
+     * <p>cache directory: /data/data/package/cache/cacheUtils</p>
+     *
+     * @param maxSize  The max size of cache, in bytes.
+     * @param maxCount The max count of cache.
+     * @return the single {@link CacheDiskUtils} instance
+     */
+    public static CacheDiskUtils getInstance(final long maxSize, final int maxCount) {
+        return getInstance("", maxSize, maxCount);
+    }
+
+    /**
+     * Return the single {@link CacheDiskUtils} instance.
+     * <p>cache directory: /data/data/package/cache/cacheName</p>
+     *
+     * @param cacheName The name of cache.
+     * @param maxSize   The max size of cache, in bytes.
+     * @param maxCount  The max count of cache.
+     * @return the single {@link CacheDiskUtils} instance
+     */
+    public static CacheDiskUtils getInstance(String cacheName, final long maxSize, final int maxCount) {
+        if (UtilsBridge.isSpace(cacheName)) cacheName = "cacheUtils";
+        File file = new File(Utils.getApp().getCacheDir(), cacheName);
+        return getInstance(file, maxSize, maxCount);
+    }
+
+    /**
+     * Return the single {@link CacheDiskUtils} instance.
+     * <p>cache size: unlimited</p>
+     * <p>cache count: unlimited</p>
+     *
+     * @param cacheDir The directory of cache.
+     * @return the single {@link CacheDiskUtils} instance
+     */
+    public static CacheDiskUtils getInstance(@NonNull final File cacheDir) {
+        return getInstance(cacheDir, DEFAULT_MAX_SIZE, DEFAULT_MAX_COUNT);
+    }
+
+    /**
+     * Return the single {@link CacheDiskUtils} instance.
+     *
+     * @param cacheDir The directory of cache.
+     * @param maxSize  The max size of cache, in bytes.
+     * @param maxCount The max count of cache.
+     * @return the single {@link CacheDiskUtils} instance
+     */
+    public static CacheDiskUtils getInstance(@NonNull final File cacheDir,
+                                             final long maxSize,
+                                             final int maxCount) {
+        final String cacheKey = cacheDir.getAbsoluteFile() + "_" + maxSize + "_" + maxCount;
+        CacheDiskUtils cache = CACHE_MAP.get(cacheKey);
+        if (cache == null) {
+            synchronized (CacheDiskUtils.class) {
+                cache = CACHE_MAP.get(cacheKey);
+                if (cache == null) {
+                    cache = new CacheDiskUtils(cacheKey, cacheDir, maxSize, maxCount);
+                    CACHE_MAP.put(cacheKey, cache);
+                }
+            }
+        }
+        return cache;
+    }
+
+    private CacheDiskUtils(final String cacheKey,
+                           final File cacheDir,
+                           final long maxSize,
+                           final int maxCount) {
+        mCacheKey = cacheKey;
+        mCacheDir = cacheDir;
+        mMaxSize = maxSize;
+        mMaxCount = maxCount;
+    }
+
+    private DiskCacheManager getDiskCacheManager() {
+        if (mCacheDir.exists()) {
+            if (mDiskCacheManager == null) {
+                mDiskCacheManager = new DiskCacheManager(mCacheDir, mMaxSize, mMaxCount);
+            }
+        } else {
+            if (mCacheDir.mkdirs()) {
+                mDiskCacheManager = new DiskCacheManager(mCacheDir, mMaxSize, mMaxCount);
+            } else {
+                Log.e("CacheDiskUtils", "can't make dirs in " + mCacheDir.getAbsolutePath());
+            }
+        }
+        return mDiskCacheManager;
+    }
+
+    @Override
+    public String toString() {
+        return mCacheKey + "@" + Integer.toHexString(hashCode());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about bytes
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final byte[] value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final byte[] value, final int saveTime) {
+        realPutBytes(TYPE_BYTE + key, value, saveTime);
+    }
+
+    private void realPutBytes(final String key, byte[] value, int saveTime) {
+        if (value == null) return;
+        DiskCacheManager diskCacheManager = getDiskCacheManager();
+        if (diskCacheManager == null) return;
+        if (saveTime >= 0) value = DiskCacheHelper.newByteArrayWithTime(saveTime, value);
+        File file = diskCacheManager.getFileBeforePut(key);
+        UtilsBridge.writeFileFromBytes(file, value);
+        diskCacheManager.updateModify(file);
+        diskCacheManager.put(file);
+    }
+
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key The key of cache.
+     * @return the bytes if cache exists or null otherwise
+     */
+    public byte[] getBytes(@NonNull final String key) {
+        return getBytes(key, null);
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bytes if cache exists or defaultValue otherwise
+     */
+    public byte[] getBytes(@NonNull final String key, final byte[] defaultValue) {
+        return realGetBytes(TYPE_BYTE + key, defaultValue);
+    }
+
+    private byte[] realGetBytes(@NonNull final String key) {
+        return realGetBytes(key, null);
+    }
+
+    private byte[] realGetBytes(@NonNull final String key, final byte[] defaultValue) {
+        DiskCacheManager diskCacheManager = getDiskCacheManager();
+        if (diskCacheManager == null) return defaultValue;
+        final File file = diskCacheManager.getFileIfExists(key);
+        if (file == null) return defaultValue;
+        byte[] data = UtilsBridge.readFile2Bytes(file);
+        if (DiskCacheHelper.isDue(data)) {
+            diskCacheManager.removeByKey(key);
+            return defaultValue;
+        }
+        diskCacheManager.updateModify(file);
+        return DiskCacheHelper.getDataWithoutDueTime(data);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about String
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final String value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final String value, final int saveTime) {
+        realPutBytes(TYPE_STRING + key, UtilsBridge.string2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key The key of cache.
+     * @return the string value if cache exists or null otherwise
+     */
+    public String getString(@NonNull final String key) {
+        return getString(key, null);
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the string value if cache exists or defaultValue otherwise
+     */
+    public String getString(@NonNull final String key, final String defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_STRING + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2String(bytes);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONObject
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final JSONObject value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key,
+                    final JSONObject value,
+                    final int saveTime) {
+        realPutBytes(TYPE_JSON_OBJECT + key, UtilsBridge.jsonObject2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key The key of cache.
+     * @return the JSONObject if cache exists or null otherwise
+     */
+    public JSONObject getJSONObject(@NonNull final String key) {
+        return getJSONObject(key, null);
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the JSONObject if cache exists or defaultValue otherwise
+     */
+    public JSONObject getJSONObject(@NonNull final String key, final JSONObject defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_JSON_OBJECT + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2JSONObject(bytes);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONArray
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final JSONArray value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final JSONArray value, final int saveTime) {
+        realPutBytes(TYPE_JSON_ARRAY + key, UtilsBridge.jsonArray2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key The key of cache.
+     * @return the JSONArray if cache exists or null otherwise
+     */
+    public JSONArray getJSONArray(@NonNull final String key) {
+        return getJSONArray(key, null);
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the JSONArray if cache exists or defaultValue otherwise
+     */
+    public JSONArray getJSONArray(@NonNull final String key, final JSONArray defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_JSON_ARRAY + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2JSONArray(bytes);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Bitmap
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final Bitmap value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final Bitmap value, final int saveTime) {
+        realPutBytes(TYPE_BITMAP + key, UtilsBridge.bitmap2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key The key of cache.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public Bitmap getBitmap(@NonNull final String key) {
+        return getBitmap(key, null);
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public Bitmap getBitmap(@NonNull final String key, final Bitmap defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_BITMAP + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2Bitmap(bytes);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Drawable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final Drawable value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final Drawable value, final int saveTime) {
+        realPutBytes(TYPE_DRAWABLE + key, UtilsBridge.drawable2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key The key of cache.
+     * @return the drawable if cache exists or null otherwise
+     */
+    public Drawable getDrawable(@NonNull final String key) {
+        return getDrawable(key, null);
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the drawable if cache exists or defaultValue otherwise
+     */
+    public Drawable getDrawable(@NonNull final String key, final Drawable defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_DRAWABLE + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2Drawable(bytes);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Parcelable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final Parcelable value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final Parcelable value, final int saveTime) {
+        realPutBytes(TYPE_PARCELABLE + key, UtilsBridge.parcelable2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key     The key of cache.
+     * @param creator The creator.
+     * @param <T>     The value type.
+     * @return the parcelable if cache exists or null otherwise
+     */
+    public <T> T getParcelable(@NonNull final String key,
+                               @NonNull final Parcelable.Creator<T> creator) {
+        return getParcelable(key, creator, null);
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key          The key of cache.
+     * @param creator      The creator.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @param <T>          The value type.
+     * @return the parcelable if cache exists or defaultValue otherwise
+     */
+    public <T> T getParcelable(@NonNull final String key,
+                               @NonNull final Parcelable.Creator<T> creator,
+                               final T defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_PARCELABLE + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2Parcelable(bytes, creator);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Serializable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public void put(@NonNull final String key, final Serializable value) {
+        put(key, value, -1);
+    }
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public void put(@NonNull final String key, final Serializable value, final int saveTime) {
+        realPutBytes(TYPE_SERIALIZABLE + key, UtilsBridge.serializable2Bytes(value), saveTime);
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key The key of cache.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public Object getSerializable(@NonNull final String key) {
+        return getSerializable(key, null);
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public Object getSerializable(@NonNull final String key, final Object defaultValue) {
+        byte[] bytes = realGetBytes(TYPE_SERIALIZABLE + key);
+        if (bytes == null) return defaultValue;
+        return UtilsBridge.bytes2Object(bytes);
+    }
+
+    /**
+     * Return the size of cache, in bytes.
+     *
+     * @return the size of cache, in bytes
+     */
+    public long getCacheSize() {
+        DiskCacheManager diskCacheManager = getDiskCacheManager();
+        if (diskCacheManager == null) return 0;
+        return diskCacheManager.getCacheSize();
+    }
+
+    /**
+     * Return the count of cache.
+     *
+     * @return the count of cache
+     */
+    public int getCacheCount() {
+        DiskCacheManager diskCacheManager = getDiskCacheManager();
+        if (diskCacheManager == null) return 0;
+        return diskCacheManager.getCacheCount();
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key The key of cache.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public boolean remove(@NonNull final String key) {
+        DiskCacheManager diskCacheManager = getDiskCacheManager();
+        if (diskCacheManager == null) return true;
+        return diskCacheManager.removeByKey(TYPE_BYTE + key)
+                && diskCacheManager.removeByKey(TYPE_STRING + key)
+                && diskCacheManager.removeByKey(TYPE_JSON_OBJECT + key)
+                && diskCacheManager.removeByKey(TYPE_JSON_ARRAY + key)
+                && diskCacheManager.removeByKey(TYPE_BITMAP + key)
+                && diskCacheManager.removeByKey(TYPE_DRAWABLE + key)
+                && diskCacheManager.removeByKey(TYPE_PARCELABLE + key)
+                && diskCacheManager.removeByKey(TYPE_SERIALIZABLE + key);
+    }
+
+    /**
+     * Clear all of the cache.
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public boolean clear() {
+        DiskCacheManager diskCacheManager = getDiskCacheManager();
+        if (diskCacheManager == null) return true;
+        return diskCacheManager.clear();
+    }
+
+    private static final class DiskCacheManager {
+        private final AtomicLong      cacheSize;
+        private final AtomicInteger   cacheCount;
+        private final long            sizeLimit;
+        private final int             countLimit;
+        private final Map<File, Long> lastUsageDates
+                = Collections.synchronizedMap(new HashMap<File, Long>());
+        private final File            cacheDir;
+        private final Thread          mThread;
+
+        private DiskCacheManager(final File cacheDir, final long sizeLimit, final int countLimit) {
+            this.cacheDir = cacheDir;
+            this.sizeLimit = sizeLimit;
+            this.countLimit = countLimit;
+            cacheSize = new AtomicLong();
+            cacheCount = new AtomicInteger();
+            mThread = new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    int size = 0;
+                    int count = 0;
+                    final File[] cachedFiles = cacheDir.listFiles(new FilenameFilter() {
+                        @Override
+                        public boolean accept(File dir, String name) {
+                            return name.startsWith(CACHE_PREFIX);
+                        }
+                    });
+                    if (cachedFiles != null) {
+                        for (File cachedFile : cachedFiles) {
+                            size += cachedFile.length();
+                            count += 1;
+                            lastUsageDates.put(cachedFile, cachedFile.lastModified());
+                        }
+                        cacheSize.getAndAdd(size);
+                        cacheCount.getAndAdd(count);
+                    }
+                }
+            });
+            mThread.start();
+        }
+
+        private long getCacheSize() {
+            wait2InitOk();
+            return cacheSize.get();
+        }
+
+        private int getCacheCount() {
+            wait2InitOk();
+            return cacheCount.get();
+        }
+
+        private File getFileBeforePut(final String key) {
+            wait2InitOk();
+            File file = new File(cacheDir, getCacheNameByKey(key));
+            if (file.exists()) {
+                cacheCount.addAndGet(-1);
+                cacheSize.addAndGet(-file.length());
+            }
+            return file;
+        }
+
+        private void wait2InitOk() {
+            try {
+                mThread.join();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
+        private File getFileIfExists(final String key) {
+            File file = new File(cacheDir, getCacheNameByKey(key));
+            if (!file.exists()) return null;
+            return file;
+        }
+
+        private String getCacheNameByKey(final String key) {
+            return CACHE_PREFIX + key.substring(0, 3) + key.substring(3).hashCode();
+        }
+
+        private void put(final File file) {
+            cacheCount.addAndGet(1);
+            cacheSize.addAndGet(file.length());
+            while (cacheCount.get() > countLimit || cacheSize.get() > sizeLimit) {
+                cacheSize.addAndGet(-removeOldest());
+                cacheCount.addAndGet(-1);
+            }
+        }
+
+        private void updateModify(final File file) {
+            Long millis = System.currentTimeMillis();
+            file.setLastModified(millis);
+            lastUsageDates.put(file, millis);
+        }
+
+        private boolean removeByKey(final String key) {
+            File file = getFileIfExists(key);
+            if (file == null) return true;
+            if (!file.delete()) return false;
+            cacheSize.addAndGet(-file.length());
+            cacheCount.addAndGet(-1);
+            lastUsageDates.remove(file);
+            return true;
+        }
+
+        private boolean clear() {
+            File[] files = cacheDir.listFiles(new FilenameFilter() {
+                @Override
+                public boolean accept(File dir, String name) {
+                    return name.startsWith(CACHE_PREFIX);
+                }
+            });
+            if (files == null || files.length <= 0) return true;
+            boolean flag = true;
+            for (File file : files) {
+                if (!file.delete()) {
+                    flag = false;
+                    continue;
+                }
+                cacheSize.addAndGet(-file.length());
+                cacheCount.addAndGet(-1);
+                lastUsageDates.remove(file);
+            }
+            if (flag) {
+                lastUsageDates.clear();
+                cacheSize.set(0);
+                cacheCount.set(0);
+            }
+            return flag;
+        }
+
+        /**
+         * Remove the oldest files.
+         *
+         * @return the size of oldest files, in bytes
+         */
+        private long removeOldest() {
+            if (lastUsageDates.isEmpty()) return 0;
+            Long oldestUsage = Long.MAX_VALUE;
+            File oldestFile = null;
+            Set<Map.Entry<File, Long>> entries = lastUsageDates.entrySet();
+            synchronized (lastUsageDates) {
+                for (Map.Entry<File, Long> entry : entries) {
+                    Long lastValueUsage = entry.getValue();
+                    if (lastValueUsage < oldestUsage) {
+                        oldestUsage = lastValueUsage;
+                        oldestFile = entry.getKey();
+                    }
+                }
+            }
+            if (oldestFile == null) return 0;
+            long fileSize = oldestFile.length();
+            if (oldestFile.delete()) {
+                lastUsageDates.remove(oldestFile);
+                return fileSize;
+            }
+            return 0;
+        }
+    }
+
+    private static final class DiskCacheHelper {
+
+        static final int TIME_INFO_LEN = 14;
+
+        private static byte[] newByteArrayWithTime(final int second, final byte[] data) {
+            byte[] time = createDueTime(second).getBytes();
+            byte[] content = new byte[time.length + data.length];
+            System.arraycopy(time, 0, content, 0, time.length);
+            System.arraycopy(data, 0, content, time.length, data.length);
+            return content;
+        }
+
+        /**
+         * Return the string of due time.
+         *
+         * @param seconds The seconds.
+         * @return the string of due time
+         */
+        private static String createDueTime(final int seconds) {
+            return String.format(
+                    Locale.getDefault(), "_$%010d$_",
+                    System.currentTimeMillis() / 1000 + seconds
+            );
+        }
+
+        private static boolean isDue(final byte[] data) {
+            long millis = getDueTime(data);
+            return millis != -1 && System.currentTimeMillis() > millis;
+        }
+
+        private static long getDueTime(final byte[] data) {
+            if (hasTimeInfo(data)) {
+                String millis = new String(copyOfRange(data, 2, 12));
+                try {
+                    return Long.parseLong(millis) * 1000;
+                } catch (NumberFormatException e) {
+                    return -1;
+                }
+            }
+            return -1;
+        }
+
+        private static byte[] getDataWithoutDueTime(final byte[] data) {
+            if (hasTimeInfo(data)) {
+                return copyOfRange(data, TIME_INFO_LEN, data.length);
+            }
+            return data;
+        }
+
+        private static byte[] copyOfRange(final byte[] original, final int from, final int to) {
+            int newLength = to - from;
+            if (newLength < 0) throw new IllegalArgumentException(from + " > " + to);
+            byte[] copy = new byte[newLength];
+            System.arraycopy(original, from, copy, 0, Math.min(original.length - from, newLength));
+            return copy;
+        }
+
+        private static boolean hasTimeInfo(final byte[] data) {
+            return data != null
+                    && data.length >= TIME_INFO_LEN
+                    && data[0] == '_'
+                    && data[1] == '$'
+                    && data[12] == '$'
+                    && data[13] == '_';
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleStaticUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleStaticUtils.java
new file mode 100644
index 0000000000..6dbb9f7475
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleStaticUtils.java
@@ -0,0 +1,969 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.os.Parcelable;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.io.Serializable;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/04
+ *     desc  : utils about double cache
+ * </pre>
+ */
+public final class CacheDoubleStaticUtils {
+
+    private static CacheDoubleUtils sDefaultCacheDoubleUtils;
+
+    /**
+     * Set the default instance of {@link CacheDoubleUtils}.
+     *
+     * @param cacheDoubleUtils The default instance of {@link CacheDoubleUtils}.
+     */
+    public static void setDefaultCacheDoubleUtils(final CacheDoubleUtils cacheDoubleUtils) {
+        sDefaultCacheDoubleUtils = cacheDoubleUtils;
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final byte[] value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, byte[] value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key The key of cache.
+     * @return the bytes if cache exists or null otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key) {
+        return getBytes(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bytes if cache exists or defaultValue otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key, final byte[] defaultValue) {
+        return getBytes(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about String
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final String value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final String value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key The key of cache.
+     * @return the string value if cache exists or null otherwise
+     */
+    public static String getString(@NonNull final String key) {
+        return getString(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the string value if cache exists or defaultValue otherwise
+     */
+    public static String getString(@NonNull final String key, final String defaultValue) {
+        return getString(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONObject
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final JSONObject value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key,
+                           final JSONObject value,
+                           final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key The key of cache.
+     * @return the JSONObject if cache exists or null otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key) {
+        return getJSONObject(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the JSONObject if cache exists or defaultValue otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key, final JSONObject defaultValue) {
+        return getJSONObject(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONArray
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final JSONArray value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final JSONArray value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key The key of cache.
+     * @return the JSONArray if cache exists or null otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key) {
+        return getJSONArray(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the JSONArray if cache exists or defaultValue otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key, final JSONArray defaultValue) {
+        return getJSONArray(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Bitmap cache
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final Bitmap value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final Bitmap value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key The key of cache.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key) {
+        return getBitmap(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key, final Bitmap defaultValue) {
+        return getBitmap(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Drawable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final Drawable value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final Drawable value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key The key of cache.
+     * @return the drawable if cache exists or null otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key) {
+        return getDrawable(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the drawable if cache exists or defaultValue otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key, final Drawable defaultValue) {
+        return getDrawable(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Parcelable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final Parcelable value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final Parcelable value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key     The key of cache.
+     * @param creator The creator.
+     * @param <T>     The value type.
+     * @return the parcelable if cache exists or null otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator) {
+        return getParcelable(key, creator, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key          The key of cache.
+     * @param creator      The creator.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @param <T>          The value type.
+     * @return the parcelable if cache exists or defaultValue otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator,
+                                      final T defaultValue) {
+        return getParcelable(key, creator, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Serializable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final Serializable value) {
+        put(key, value, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final Serializable value, final int saveTime) {
+        put(key, value, saveTime, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key The key of cache.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Object getSerializable(@NonNull final String key) {
+        return getSerializable(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Object getSerializable(@NonNull final String key, final Object defaultValue) {
+        return getSerializable(key, defaultValue, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the size of cache in disk.
+     *
+     * @return the size of cache in disk
+     */
+    public static long getCacheDiskSize() {
+        return getCacheDiskSize(getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the count of cache in disk.
+     *
+     * @return the count of cache in disk
+     */
+    public static int getCacheDiskCount() {
+        return getCacheDiskCount(getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Return the count of cache in memory.
+     *
+     * @return the count of cache in memory.
+     */
+    public static int getCacheMemoryCount() {
+        return getCacheMemoryCount(getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key The key of cache.
+     */
+    public static void remove(@NonNull String key) {
+        remove(key, getDefaultCacheDoubleUtils());
+    }
+
+    /**
+     * Clear all of the cache.
+     */
+    public static void clear() {
+        clear(getDefaultCacheDoubleUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // dividing line
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final byte[] value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final byte[] value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the bytes if cache exists or null otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getBytes(key);
+    }
+
+    /**
+     * Return the bytes in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the bytes if cache exists or defaultValue otherwise
+     */
+    public static byte[] getBytes(@NonNull final String key,
+                                  final byte[] defaultValue,
+                                  @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getBytes(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about String
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final String value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put string value in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final String value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the string value if cache exists or null otherwise
+     */
+    public static String getString(@NonNull final String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getString(key);
+    }
+
+    /**
+     * Return the string value in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the string value if cache exists or defaultValue otherwise
+     */
+    public static String getString(@NonNull final String key,
+                                   final String defaultValue,
+                                   @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getString(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONObject
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final JSONObject value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put JSONObject in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final JSONObject value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the JSONObject if cache exists or null otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key,
+                                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getJSONObject(key);
+    }
+
+    /**
+     * Return the JSONObject in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the JSONObject if cache exists or defaultValue otherwise
+     */
+    public static JSONObject getJSONObject(@NonNull final String key,
+                                           final JSONObject defaultValue,
+                                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getJSONObject(key, defaultValue);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about JSONArray
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final JSONArray value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put JSONArray in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final JSONArray value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the JSONArray if cache exists or null otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getJSONArray(key);
+    }
+
+    /**
+     * Return the JSONArray in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the JSONArray if cache exists or defaultValue otherwise
+     */
+    public static JSONArray getJSONArray(@NonNull final String key,
+                                         final JSONArray defaultValue,
+                                         @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getJSONArray(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Bitmap cache
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Bitmap value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put bitmap in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Bitmap value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getBitmap(key);
+    }
+
+    /**
+     * Return the bitmap in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Bitmap getBitmap(@NonNull final String key,
+                                   final Bitmap defaultValue,
+                                   @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getBitmap(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Drawable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Drawable value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put drawable in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Drawable value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the drawable if cache exists or null otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getDrawable(key);
+    }
+
+    /**
+     * Return the drawable in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the drawable if cache exists or defaultValue otherwise
+     */
+    public static Drawable getDrawable(@NonNull final String key,
+                                       final Drawable defaultValue,
+                                       @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getDrawable(key, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Parcelable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Parcelable value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put parcelable in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Parcelable value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key              The key of cache.
+     * @param creator          The creator.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @param <T>              The value type.
+     * @return the parcelable if cache exists or null otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator,
+                                      @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getParcelable(key, creator);
+    }
+
+    /**
+     * Return the parcelable in cache.
+     *
+     * @param key              The key of cache.
+     * @param creator          The creator.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @param <T>              The value type.
+     * @return the parcelable if cache exists or defaultValue otherwise
+     */
+    public static <T> T getParcelable(@NonNull final String key,
+                                      @NonNull final Parcelable.Creator<T> creator,
+                                      final T defaultValue,
+                                      @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getParcelable(key, creator, defaultValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about Serializable
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Serializable value,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value);
+    }
+
+    /**
+     * Put serializable in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Serializable value,
+                           final int saveTime,
+                           @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the bitmap if cache exists or null otherwise
+     */
+    public static Object getSerializable(@NonNull final String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getSerializable(key);
+    }
+
+    /**
+     * Return the serializable in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the bitmap if cache exists or defaultValue otherwise
+     */
+    public static Object getSerializable(@NonNull final String key,
+                                         final Object defaultValue,
+                                         @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getSerializable(key, defaultValue);
+    }
+
+    /**
+     * Return the size of cache in disk.
+     *
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the size of cache in disk
+     */
+    public static long getCacheDiskSize(@NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getCacheDiskSize();
+    }
+
+    /**
+     * Return the count of cache in disk.
+     *
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the count of cache in disk
+     */
+    public static int getCacheDiskCount(@NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getCacheDiskCount();
+    }
+
+    /**
+     * Return the count of cache in memory.
+     *
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     * @return the count of cache in memory.
+     */
+    public static int getCacheMemoryCount(@NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        return cacheDoubleUtils.getCacheMemoryCount();
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key              The key of cache.
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void remove(@NonNull String key, @NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.remove(key);
+    }
+
+    /**
+     * Clear all of the cache.
+     *
+     * @param cacheDoubleUtils The instance of {@link CacheDoubleUtils}.
+     */
+    public static void clear(@NonNull final CacheDoubleUtils cacheDoubleUtils) {
+        cacheDoubleUtils.clear();
+    }
+
+    private static CacheDoubleUtils getDefaultCacheDoubleUtils() {
+        return sDefaultCacheDoubleUtils != null ? sDefaultCacheDoubleUtils : CacheDoubleUtils.getInstance();
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
similarity index 88%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
index 70710c373c..c39c9ef9d4 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
@@ -3,7 +3,7 @@
 import android.graphics.Bitmap;
 import android.graphics.drawable.Drawable;
 import android.os.Parcelable;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import com.blankj.utilcode.constant.CacheConstants;
 
@@ -11,8 +11,8 @@
 import org.json.JSONObject;
 
 import java.io.Serializable;
+import java.util.HashMap;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * <pre>
@@ -24,7 +24,7 @@
  */
 public final class CacheDoubleUtils implements CacheConstants {
 
-    private static final Map<String, CacheDoubleUtils> CACHE_MAP = new ConcurrentHashMap<>();
+    private static final Map<String, CacheDoubleUtils> CACHE_MAP = new HashMap<>();
 
     private final CacheMemoryUtils mCacheMemoryUtils;
     private final CacheDiskUtils   mCacheDiskUtils;
@@ -50,8 +50,13 @@ public static CacheDoubleUtils getInstance(@NonNull final CacheMemoryUtils cache
         final String cacheKey = cacheDiskUtils.toString() + "_" + cacheMemoryUtils.toString();
         CacheDoubleUtils cache = CACHE_MAP.get(cacheKey);
         if (cache == null) {
-            cache = new CacheDoubleUtils(cacheMemoryUtils, cacheDiskUtils);
-            CACHE_MAP.put(cacheKey, cache);
+            synchronized (CacheDoubleUtils.class) {
+                cache = CACHE_MAP.get(cacheKey);
+                if (cache == null) {
+                    cache = new CacheDoubleUtils(cacheMemoryUtils, cacheDiskUtils);
+                    CACHE_MAP.put(cacheKey, cache);
+                }
+            }
         }
         return cache;
     }
@@ -108,7 +113,12 @@ public byte[] getBytes(@NonNull final String key) {
     public byte[] getBytes(@NonNull final String key, final byte[] defaultValue) {
         byte[] obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getBytes(key, defaultValue);
+        byte[] bytes = mCacheDiskUtils.getBytes(key);
+        if (bytes != null) {
+            mCacheMemoryUtils.put(key, bytes);
+            return bytes;
+        }
+        return defaultValue;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -157,7 +167,12 @@ public String getString(@NonNull final String key) {
     public String getString(@NonNull final String key, final String defaultValue) {
         String obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getString(key, defaultValue);
+        String string = mCacheDiskUtils.getString(key);
+        if (string != null) {
+            mCacheMemoryUtils.put(key, string);
+            return string;
+        }
+        return defaultValue;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -208,7 +223,12 @@ public JSONObject getJSONObject(@NonNull final String key) {
     public JSONObject getJSONObject(@NonNull final String key, final JSONObject defaultValue) {
         JSONObject obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getJSONObject(key, defaultValue);
+        JSONObject jsonObject = mCacheDiskUtils.getJSONObject(key);
+        if (jsonObject != null) {
+            mCacheMemoryUtils.put(key, jsonObject);
+            return jsonObject;
+        }
+        return defaultValue;
     }
 
 
@@ -258,7 +278,12 @@ public JSONArray getJSONArray(@NonNull final String key) {
     public JSONArray getJSONArray(@NonNull final String key, final JSONArray defaultValue) {
         JSONArray obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getJSONArray(key, defaultValue);
+        JSONArray jsonArray = mCacheDiskUtils.getJSONArray(key);
+        if (jsonArray != null) {
+            mCacheMemoryUtils.put(key, jsonArray);
+            return jsonArray;
+        }
+        return defaultValue;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -307,7 +332,12 @@ public Bitmap getBitmap(@NonNull final String key) {
     public Bitmap getBitmap(@NonNull final String key, final Bitmap defaultValue) {
         Bitmap obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getBitmap(key, defaultValue);
+        Bitmap bitmap = mCacheDiskUtils.getBitmap(key);
+        if (bitmap != null) {
+            mCacheMemoryUtils.put(key, bitmap);
+            return bitmap;
+        }
+        return defaultValue;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -356,7 +386,12 @@ public Drawable getDrawable(@NonNull final String key) {
     public Drawable getDrawable(@NonNull final String key, final Drawable defaultValue) {
         Drawable obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getDrawable(key, defaultValue);
+        Drawable drawable = mCacheDiskUtils.getDrawable(key);
+        if (drawable != null) {
+            mCacheMemoryUtils.put(key, drawable);
+            return drawable;
+        }
+        return defaultValue;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -412,7 +447,12 @@ public <T> T getParcelable(@NonNull final String key,
                                final T defaultValue) {
         T value = mCacheMemoryUtils.get(key);
         if (value != null) return value;
-        return mCacheDiskUtils.getParcelable(key, creator, defaultValue);
+        T val = mCacheDiskUtils.getParcelable(key, creator);
+        if (val != null) {
+            mCacheMemoryUtils.put(key, val);
+            return val;
+        }
+        return defaultValue;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -461,7 +501,12 @@ public Object getSerializable(@NonNull final String key) {
     public Object getSerializable(@NonNull final String key, final Object defaultValue) {
         Object obj = mCacheMemoryUtils.get(key);
         if (obj != null) return obj;
-        return mCacheDiskUtils.getSerializable(key, defaultValue);
+        Object serializable = mCacheDiskUtils.getSerializable(key);
+        if (serializable != null) {
+            mCacheMemoryUtils.put(key, serializable);
+            return serializable;
+        }
+        return defaultValue;
     }
 
     /**
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryStaticUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryStaticUtils.java
new file mode 100644
index 0000000000..aedcfa7fc4
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryStaticUtils.java
@@ -0,0 +1,188 @@
+package com.blankj.utilcode.util;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/04
+ *     desc  : utils about memory cache
+ * </pre>
+ */
+public final class CacheMemoryStaticUtils {
+
+    private static CacheMemoryUtils sDefaultCacheMemoryUtils;
+
+    /**
+     * Set the default instance of {@link CacheMemoryUtils}.
+     *
+     * @param cacheMemoryUtils The default instance of {@link CacheMemoryUtils}.
+     */
+    public static void setDefaultCacheMemoryUtils(final CacheMemoryUtils cacheMemoryUtils) {
+        sDefaultCacheMemoryUtils = cacheMemoryUtils;
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key   The key of cache.
+     * @param value The value of cache.
+     */
+    public static void put(@NonNull final String key, final Object value) {
+        put(key, value, getDefaultCacheMemoryUtils());
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key      The key of cache.
+     * @param value    The value of cache.
+     * @param saveTime The save time of cache, in seconds.
+     */
+    public static void put(@NonNull final String key, final Object value, int saveTime) {
+        put(key, value, saveTime, getDefaultCacheMemoryUtils());
+    }
+
+    /**
+     * Return the value in cache.
+     *
+     * @param key The key of cache.
+     * @param <T> The value type.
+     * @return the value if cache exists or null otherwise
+     */
+    public static <T> T get(@NonNull final String key) {
+        return get(key, getDefaultCacheMemoryUtils());
+    }
+
+    /**
+     * Return the value in cache.
+     *
+     * @param key          The key of cache.
+     * @param defaultValue The default value if the cache doesn't exist.
+     * @param <T>          The value type.
+     * @return the value if cache exists or defaultValue otherwise
+     */
+    public static <T> T get(@NonNull final String key, final T defaultValue) {
+        return get(key, defaultValue, getDefaultCacheMemoryUtils());
+    }
+
+    /**
+     * Return the count of cache.
+     *
+     * @return the count of cache
+     */
+    public static int getCacheCount() {
+        return getCacheCount(getDefaultCacheMemoryUtils());
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key The key of cache.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static Object remove(@NonNull final String key) {
+        return remove(key, getDefaultCacheMemoryUtils());
+    }
+
+    /**
+     * Clear all of the cache.
+     */
+    public static void clear() {
+        clear(getDefaultCacheMemoryUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // dividing line
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Object value,
+                           @NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        cacheMemoryUtils.put(key, value);
+    }
+
+    /**
+     * Put bytes in cache.
+     *
+     * @param key              The key of cache.
+     * @param value            The value of cache.
+     * @param saveTime         The save time of cache, in seconds.
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Object value,
+                           int saveTime,
+                           @NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        cacheMemoryUtils.put(key, value, saveTime);
+    }
+
+    /**
+     * Return the value in cache.
+     *
+     * @param key              The key of cache.
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     * @param <T>              The value type.
+     * @return the value if cache exists or null otherwise
+     */
+    public static <T> T get(@NonNull final String key, @NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        return cacheMemoryUtils.get(key);
+    }
+
+    /**
+     * Return the value in cache.
+     *
+     * @param key              The key of cache.
+     * @param defaultValue     The default value if the cache doesn't exist.
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     * @param <T>              The value type.
+     * @return the value if cache exists or defaultValue otherwise
+     */
+    public static <T> T get(@NonNull final String key,
+                            final T defaultValue,
+                            @NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        return cacheMemoryUtils.get(key, defaultValue);
+    }
+
+    /**
+     * Return the count of cache.
+     *
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     * @return the count of cache
+     */
+    public static int getCacheCount(@NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        return cacheMemoryUtils.getCacheCount();
+    }
+
+    /**
+     * Remove the cache by key.
+     *
+     * @param key              The key of cache.
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static Object remove(@NonNull final String key, @NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        return cacheMemoryUtils.remove(key);
+    }
+
+    /**
+     * Clear all of the cache.
+     *
+     * @param cacheMemoryUtils The instance of {@link CacheMemoryUtils}.
+     */
+    public static void clear(@NonNull final CacheMemoryUtils cacheMemoryUtils) {
+        cacheMemoryUtils.clear();
+    }
+
+    private static CacheMemoryUtils getDefaultCacheMemoryUtils() {
+        return sDefaultCacheMemoryUtils != null ? sDefaultCacheMemoryUtils : CacheMemoryUtils.getInstance();
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
similarity index 88%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
index c8404bfb16..ddaa2baed9 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
@@ -1,12 +1,12 @@
 package com.blankj.utilcode.util;
 
-import android.support.annotation.NonNull;
-import android.support.v4.util.LruCache;
+import androidx.annotation.NonNull;
+import androidx.collection.LruCache;
 
 import com.blankj.utilcode.constant.CacheConstants;
 
+import java.util.HashMap;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * <pre>
@@ -20,7 +20,7 @@ public final class CacheMemoryUtils implements CacheConstants {
 
     private static final int DEFAULT_MAX_COUNT = 256;
 
-    private static final Map<String, CacheMemoryUtils> CACHE_MAP = new ConcurrentHashMap<>();
+    private static final Map<String, CacheMemoryUtils> CACHE_MAP = new HashMap<>();
 
     private final String                       mCacheKey;
     private final LruCache<String, CacheValue> mMemoryCache;
@@ -54,8 +54,13 @@ public static CacheMemoryUtils getInstance(final int maxCount) {
     public static CacheMemoryUtils getInstance(final String cacheKey, final int maxCount) {
         CacheMemoryUtils cache = CACHE_MAP.get(cacheKey);
         if (cache == null) {
-            cache = new CacheMemoryUtils(cacheKey, new LruCache<String, CacheValue>(maxCount));
-            CACHE_MAP.put(cacheKey, cache);
+            synchronized (CacheMemoryUtils.class) {
+                cache = CACHE_MAP.get(cacheKey);
+                if (cache == null) {
+                    cache = new CacheMemoryUtils(cacheKey, new LruCache<String, CacheValue>(maxCount));
+                    CACHE_MAP.put(cacheKey, cache);
+                }
+            }
         }
         return cache;
     }
@@ -97,6 +102,7 @@ public void put(@NonNull final String key, final Object value, int saveTime) {
      * Return the value in cache.
      *
      * @param key The key of cache.
+     * @param <T> The value type.
      * @return the value if cache exists or null otherwise
      */
     public <T> T get(@NonNull final String key) {
@@ -108,12 +114,14 @@ public <T> T get(@NonNull final String key) {
      *
      * @param key          The key of cache.
      * @param defaultValue The default value if the cache doesn't exist.
+     * @param <T>          The value type.
      * @return the value if cache exists or defaultValue otherwise
      */
     public <T> T get(@NonNull final String key, final T defaultValue) {
         CacheValue val = mMemoryCache.get(key);
         if (val == null) return defaultValue;
         if (val.dueTime == -1 || val.dueTime >= System.currentTimeMillis()) {
+            //noinspection unchecked
             return (T) val.value;
         }
         mMemoryCache.remove(key);
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java
new file mode 100644
index 0000000000..7db3edbd6a
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java
@@ -0,0 +1,104 @@
+package com.blankj.utilcode.util;
+
+import android.app.ActivityManager;
+import android.content.Context;
+import android.os.Build;
+import android.os.Environment;
+
+import java.io.File;
+
+import androidx.annotation.RequiresApi;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/27
+ *     desc  : utils about clean
+ * </pre>
+ */
+public final class CleanUtils {
+
+    private CleanUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Clean the internal cache.
+     * <p>directory: /data/data/package/cache</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanInternalCache() {
+        return UtilsBridge.deleteAllInDir(Utils.getApp().getCacheDir());
+    }
+
+    /**
+     * Clean the internal files.
+     * <p>directory: /data/data/package/files</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanInternalFiles() {
+        return UtilsBridge.deleteAllInDir(Utils.getApp().getFilesDir());
+    }
+
+    /**
+     * Clean the internal databases.
+     * <p>directory: /data/data/package/databases</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanInternalDbs() {
+        return UtilsBridge.deleteAllInDir(new File(Utils.getApp().getFilesDir().getParent(), "databases"));
+    }
+
+    /**
+     * Clean the internal database by name.
+     * <p>directory: /data/data/package/databases/dbName</p>
+     *
+     * @param dbName The name of database.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanInternalDbByName(final String dbName) {
+        return Utils.getApp().deleteDatabase(dbName);
+    }
+
+    /**
+     * Clean the internal shared preferences.
+     * <p>directory: /data/data/package/shared_prefs</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanInternalSp() {
+        return UtilsBridge.deleteAllInDir(new File(Utils.getApp().getFilesDir().getParent(), "shared_prefs"));
+    }
+
+    /**
+     * Clean the external cache.
+     * <p>directory: /storage/emulated/0/android/data/package/cache</p>
+     *
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanExternalCache() {
+        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
+                && UtilsBridge.deleteAllInDir(Utils.getApp().getExternalCacheDir());
+    }
+
+    /**
+     * Clean the custom directory.
+     *
+     * @param dirPath The path of directory.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean cleanCustomDir(final String dirPath) {
+        return UtilsBridge.deleteAllInDir(UtilsBridge.getFileByPath(dirPath));
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
+    public static void cleanAppUserData() {
+        ActivityManager am = (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        //noinspection ConstantConditions
+        am.clearApplicationUserData();
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClickUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClickUtils.java
new file mode 100644
index 0000000000..8f73792f8f
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClickUtils.java
@@ -0,0 +1,621 @@
+package com.blankj.utilcode.util;
+
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.StateListDrawable;
+import android.os.Build;
+import android.os.SystemClock;
+import android.util.Log;
+import android.util.StateSet;
+import android.view.MotionEvent;
+import android.view.TouchDelegate;
+import android.view.View;
+
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+import androidx.core.view.ViewCompat;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/12
+ *     desc  : utils about click
+ * </pre>
+ */
+public class ClickUtils {
+
+    private static final int   PRESSED_VIEW_SCALE_TAG           = -1;
+    private static final float PRESSED_VIEW_SCALE_DEFAULT_VALUE = -0.06f;
+
+    private static final int   PRESSED_VIEW_ALPHA_TAG           = -2;
+    private static final int   PRESSED_VIEW_ALPHA_SRC_TAG       = -3;
+    private static final float PRESSED_VIEW_ALPHA_DEFAULT_VALUE = 0.8f;
+
+    private static final int   PRESSED_BG_ALPHA_STYLE         = 4;
+    private static final float PRESSED_BG_ALPHA_DEFAULT_VALUE = 0.9f;
+
+    private static final int   PRESSED_BG_DARK_STYLE         = 5;
+    private static final float PRESSED_BG_DARK_DEFAULT_VALUE = 0.9f;
+
+    private static final long DEBOUNCING_DEFAULT_VALUE = 1000;
+
+    private ClickUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Apply scale animation for the views' click.
+     *
+     * @param views The views.
+     */
+    public static void applyPressedViewScale(final View... views) {
+        applyPressedViewScale(views, null);
+    }
+
+    /**
+     * Apply scale animation for the views' click.
+     *
+     * @param views        The views.
+     * @param scaleFactors The factors of scale for the views.
+     */
+    public static void applyPressedViewScale(final View[] views, final float[] scaleFactors) {
+        if (views == null || views.length == 0) {
+            return;
+        }
+        for (int i = 0; i < views.length; i++) {
+            if (scaleFactors == null || i >= scaleFactors.length) {
+                applyPressedViewScale(views[i], PRESSED_VIEW_SCALE_DEFAULT_VALUE);
+            } else {
+                applyPressedViewScale(views[i], scaleFactors[i]);
+            }
+        }
+    }
+
+    /**
+     * Apply scale animation for the views' click.
+     *
+     * @param view        The view.
+     * @param scaleFactor The factor of scale for the view.
+     */
+    public static void applyPressedViewScale(final View view, final float scaleFactor) {
+        if (view == null) {
+            return;
+        }
+        view.setTag(PRESSED_VIEW_SCALE_TAG, scaleFactor);
+        view.setClickable(true);
+        view.setOnTouchListener(OnUtilsTouchListener.getInstance());
+    }
+
+    /**
+     * Apply alpha for the views' click.
+     *
+     * @param views The views.
+     */
+    public static void applyPressedViewAlpha(final View... views) {
+        applyPressedViewAlpha(views, null);
+    }
+
+    /**
+     * Apply alpha for the views' click.
+     *
+     * @param views  The views.
+     * @param alphas The alphas for the views.
+     */
+    public static void applyPressedViewAlpha(final View[] views, final float[] alphas) {
+        if (views == null || views.length == 0) return;
+        for (int i = 0; i < views.length; i++) {
+            if (alphas == null || i >= alphas.length) {
+                applyPressedViewAlpha(views[i], PRESSED_VIEW_ALPHA_DEFAULT_VALUE);
+            } else {
+                applyPressedViewAlpha(views[i], alphas[i]);
+            }
+        }
+    }
+
+
+    /**
+     * Apply scale animation for the views' click.
+     *
+     * @param view  The view.
+     * @param alpha The alpha for the view.
+     */
+    public static void applyPressedViewAlpha(final View view, final float alpha) {
+        if (view == null) {
+            return;
+        }
+        view.setTag(PRESSED_VIEW_ALPHA_TAG, alpha);
+        view.setTag(PRESSED_VIEW_ALPHA_SRC_TAG, view.getAlpha());
+        view.setClickable(true);
+        view.setOnTouchListener(OnUtilsTouchListener.getInstance());
+    }
+
+    /**
+     * Apply alpha for the view's background.
+     *
+     * @param view The views.
+     */
+    public static void applyPressedBgAlpha(View view) {
+        applyPressedBgAlpha(view, PRESSED_BG_ALPHA_DEFAULT_VALUE);
+    }
+
+    /**
+     * Apply alpha for the view's background.
+     *
+     * @param view  The views.
+     * @param alpha The alpha.
+     */
+    public static void applyPressedBgAlpha(View view, float alpha) {
+        applyPressedBgStyle(view, PRESSED_BG_ALPHA_STYLE, alpha);
+    }
+
+    /**
+     * Apply alpha of dark for the view's background.
+     *
+     * @param view The views.
+     */
+    public static void applyPressedBgDark(View view) {
+        applyPressedBgDark(view, PRESSED_BG_DARK_DEFAULT_VALUE);
+    }
+
+    /**
+     * Apply alpha of dark for the view's background.
+     *
+     * @param view      The views.
+     * @param darkAlpha The alpha of dark.
+     */
+    public static void applyPressedBgDark(View view, float darkAlpha) {
+        applyPressedBgStyle(view, PRESSED_BG_DARK_STYLE, darkAlpha);
+    }
+
+    private static void applyPressedBgStyle(View view, int style, float value) {
+        if (view == null) return;
+        Drawable background = view.getBackground();
+        Object tag = view.getTag(-style);
+        if (tag instanceof Drawable) {
+            ViewCompat.setBackground(view, (Drawable) tag);
+        } else {
+            background = createStyleDrawable(background, style, value);
+            ViewCompat.setBackground(view, background);
+            view.setTag(-style, background);
+        }
+    }
+
+    private static Drawable createStyleDrawable(Drawable src, int style, float value) {
+        if (src == null) {
+            src = new ColorDrawable(0);
+        }
+        if (src.getConstantState() == null) return src;
+
+        Drawable pressed = src.getConstantState().newDrawable().mutate();
+        if (style == PRESSED_BG_ALPHA_STYLE) {
+            pressed = createAlphaDrawable(pressed, value);
+        } else if (style == PRESSED_BG_DARK_STYLE) {
+            pressed = createDarkDrawable(pressed, value);
+        }
+
+        Drawable disable = src.getConstantState().newDrawable().mutate();
+        disable = createAlphaDrawable(disable, 0.5f);
+
+        StateListDrawable drawable = new StateListDrawable();
+        drawable.addState(new int[]{android.R.attr.state_pressed}, pressed);
+        drawable.addState(new int[]{-android.R.attr.state_enabled}, disable);
+        drawable.addState(StateSet.WILD_CARD, src);
+        return drawable;
+    }
+
+    private static Drawable createAlphaDrawable(Drawable drawable, float alpha) {
+        ClickDrawableWrapper drawableWrapper = new ClickDrawableWrapper(drawable);
+        drawableWrapper.setAlpha((int) (alpha * 255));
+        return drawableWrapper;
+    }
+
+    private static Drawable createDarkDrawable(Drawable drawable, float alpha) {
+        ClickDrawableWrapper drawableWrapper = new ClickDrawableWrapper(drawable);
+        drawableWrapper.setColorFilter(getDarkColorFilter(alpha));
+        return drawableWrapper;
+    }
+
+    private static ColorMatrixColorFilter getDarkColorFilter(float darkAlpha) {
+        return new ColorMatrixColorFilter(new ColorMatrix(new float[]{
+                darkAlpha, 0, 0, 0, 0,
+                0, darkAlpha, 0, 0, 0,
+                0, 0, darkAlpha, 0, 0,
+                0, 0, 0, 2, 0
+        }));
+    }
+
+    /**
+     * Apply single debouncing for the view's click.
+     *
+     * @param view     The view.
+     * @param listener The listener.
+     */
+    public static void applySingleDebouncing(final View view, final View.OnClickListener listener) {
+        applySingleDebouncing(new View[]{view}, listener);
+    }
+
+    /**
+     * Apply single debouncing for the view's click.
+     *
+     * @param view     The view.
+     * @param duration The duration of debouncing.
+     * @param listener The listener.
+     */
+    public static void applySingleDebouncing(final View view, @IntRange(from = 0) long duration,
+                                             final View.OnClickListener listener) {
+        applySingleDebouncing(new View[]{view}, duration, listener);
+    }
+
+    /**
+     * Apply single debouncing for the views' click.
+     *
+     * @param views    The views.
+     * @param listener The listener.
+     */
+    public static void applySingleDebouncing(final View[] views, final View.OnClickListener listener) {
+        applySingleDebouncing(views, DEBOUNCING_DEFAULT_VALUE, listener);
+    }
+
+    /**
+     * Apply single debouncing for the views' click.
+     *
+     * @param views    The views.
+     * @param duration The duration of debouncing.
+     * @param listener The listener.
+     */
+    public static void applySingleDebouncing(final View[] views,
+                                             @IntRange(from = 0) long duration,
+                                             final View.OnClickListener listener) {
+        applyDebouncing(views, false, duration, listener);
+    }
+
+    /**
+     * Apply global debouncing for the view's click.
+     *
+     * @param view     The view.
+     * @param listener The listener.
+     */
+    public static void applyGlobalDebouncing(final View view, final View.OnClickListener listener) {
+        applyGlobalDebouncing(new View[]{view}, listener);
+    }
+
+    /**
+     * Apply global debouncing for the view's click.
+     *
+     * @param view     The view.
+     * @param duration The duration of debouncing.
+     * @param listener The listener.
+     */
+    public static void applyGlobalDebouncing(final View view, @IntRange(from = 0) long duration,
+                                             final View.OnClickListener listener) {
+        applyGlobalDebouncing(new View[]{view}, duration, listener);
+    }
+
+
+    /**
+     * Apply global debouncing for the views' click.
+     *
+     * @param views    The views.
+     * @param listener The listener.
+     */
+    public static void applyGlobalDebouncing(final View[] views, final View.OnClickListener listener) {
+        applyGlobalDebouncing(views, DEBOUNCING_DEFAULT_VALUE, listener);
+    }
+
+    /**
+     * Apply global debouncing for the views' click.
+     *
+     * @param views    The views.
+     * @param duration The duration of debouncing.
+     * @param listener The listener.
+     */
+    public static void applyGlobalDebouncing(final View[] views,
+                                             @IntRange(from = 0) long duration,
+                                             final View.OnClickListener listener) {
+        applyDebouncing(views, true, duration, listener);
+    }
+
+    private static void applyDebouncing(final View[] views,
+                                        final boolean isGlobal,
+                                        @IntRange(from = 0) long duration,
+                                        final View.OnClickListener listener) {
+        if (views == null || views.length == 0 || listener == null) return;
+        for (View view : views) {
+            if (view == null) continue;
+            view.setOnClickListener(new OnDebouncingClickListener(isGlobal, duration) {
+                @Override
+                public void onDebouncingClick(View v) {
+                    listener.onClick(v);
+                }
+            });
+        }
+    }
+
+    /**
+     * Expand the click area of ​​the view
+     *
+     * @param view       The view.
+     * @param expandSize The size.
+     */
+    public static void expandClickArea(@NonNull final View view, final int expandSize) {
+        expandClickArea(view, expandSize, expandSize, expandSize, expandSize);
+    }
+
+    public static void expandClickArea(@NonNull final View view,
+                                       final int expandSizeTop,
+                                       final int expandSizeLeft,
+                                       final int expandSizeRight,
+                                       final int expandSizeBottom) {
+        final View parentView = (View) view.getParent();
+        if (parentView == null) {
+            Log.e("ClickUtils", "expandClickArea must have parent view.");
+            return;
+        }
+        parentView.post(new Runnable() {
+            @Override
+            public void run() {
+                final Rect rect = new Rect();
+                view.getHitRect(rect);
+                rect.top -= expandSizeTop;
+                rect.bottom += expandSizeBottom;
+                rect.left -= expandSizeLeft;
+                rect.right += expandSizeRight;
+                parentView.setTouchDelegate(new TouchDelegate(rect, view));
+            }
+        });
+    }
+
+    private static final long TIP_DURATION = 2000L;
+    private static       long sLastClickMillis;
+    private static       int  sClickCount;
+
+    public static void back2HomeFriendly(final CharSequence tip) {
+        back2HomeFriendly(tip, TIP_DURATION, Back2HomeFriendlyListener.DEFAULT);
+    }
+
+    public static void back2HomeFriendly(@NonNull final CharSequence tip,
+                                         final long duration,
+                                         @NonNull Back2HomeFriendlyListener listener) {
+        long nowMillis = SystemClock.elapsedRealtime();
+        if (Math.abs(nowMillis - sLastClickMillis) < duration) {
+            sClickCount++;
+            if (sClickCount == 2) {
+                UtilsBridge.startHomeActivity();
+                listener.dismiss();
+                sLastClickMillis = 0;
+            }
+        } else {
+            sClickCount = 1;
+            listener.show(tip, duration);
+            sLastClickMillis = nowMillis;
+        }
+    }
+
+    public interface Back2HomeFriendlyListener {
+        Back2HomeFriendlyListener DEFAULT = new Back2HomeFriendlyListener() {
+            @Override
+            public void show(CharSequence text, long duration) {
+                UtilsBridge.toastShowShort(text);
+            }
+
+            @Override
+            public void dismiss() {
+                UtilsBridge.toastCancel();
+            }
+        };
+
+        void show(CharSequence text, long duration);
+
+        void dismiss();
+    }
+
+    public static abstract class OnDebouncingClickListener implements View.OnClickListener {
+
+        private static boolean mEnabled = true;
+
+        private static final Runnable ENABLE_AGAIN = new Runnable() {
+            @Override
+            public void run() {
+                mEnabled = true;
+            }
+        };
+
+        private static boolean isValid(@NonNull final View view, final long duration) {
+            return UtilsBridge.isValid(view, duration);
+        }
+
+        private long    mDuration;
+        private boolean mIsGlobal;
+
+        public OnDebouncingClickListener() {
+            this(true, DEBOUNCING_DEFAULT_VALUE);
+        }
+
+        public OnDebouncingClickListener(final boolean isGlobal) {
+            this(isGlobal, DEBOUNCING_DEFAULT_VALUE);
+        }
+
+        public OnDebouncingClickListener(final long duration) {
+            this(true, duration);
+        }
+
+        public OnDebouncingClickListener(final boolean isGlobal, final long duration) {
+            mIsGlobal = isGlobal;
+            mDuration = duration;
+        }
+
+        public abstract void onDebouncingClick(View v);
+
+        @Override
+        public final void onClick(View v) {
+            if (mIsGlobal) {
+                if (mEnabled) {
+                    mEnabled = false;
+                    v.postDelayed(ENABLE_AGAIN, mDuration);
+                    onDebouncingClick(v);
+                }
+            } else {
+                if (isValid(v, mDuration)) {
+                    onDebouncingClick(v);
+                }
+            }
+        }
+    }
+
+    public static abstract class OnMultiClickListener implements View.OnClickListener {
+
+        private static final long INTERVAL_DEFAULT_VALUE = 666;
+
+        private final int  mTriggerClickCount;
+        private final long mClickInterval;
+
+        private long mLastClickTime;
+        private int  mClickCount;
+
+        public OnMultiClickListener(int triggerClickCount) {
+            this(triggerClickCount, INTERVAL_DEFAULT_VALUE);
+        }
+
+        public OnMultiClickListener(int triggerClickCount, long clickInterval) {
+            this.mTriggerClickCount = triggerClickCount;
+            this.mClickInterval = clickInterval;
+        }
+
+        public abstract void onTriggerClick(View v);
+
+        public abstract void onBeforeTriggerClick(View v, int count);
+
+        @Override
+        public void onClick(View v) {
+            if (mTriggerClickCount <= 1) {
+                onTriggerClick(v);
+                return;
+            }
+            long curTime = System.currentTimeMillis();
+
+            if (curTime - mLastClickTime < mClickInterval) {
+                mClickCount++;
+                if (mClickCount == mTriggerClickCount) {
+                    onTriggerClick(v);
+                } else if (mClickCount < mTriggerClickCount) {
+                    onBeforeTriggerClick(v, mClickCount);
+                } else {
+                    mClickCount = 1;
+                    onBeforeTriggerClick(v, mClickCount);
+                }
+            } else {
+                mClickCount = 1;
+                onBeforeTriggerClick(v, mClickCount);
+            }
+            mLastClickTime = curTime;
+        }
+    }
+
+    private static class OnUtilsTouchListener implements View.OnTouchListener {
+
+        public static OnUtilsTouchListener getInstance() {
+            return LazyHolder.INSTANCE;
+        }
+
+        private OnUtilsTouchListener() {/**/}
+
+        @Override
+        public boolean onTouch(final View v, MotionEvent event) {
+            int action = event.getAction();
+            if (action == MotionEvent.ACTION_DOWN) {
+                processScale(v, true);
+                processAlpha(v, true);
+            } else if (action == MotionEvent.ACTION_UP
+                    || action == MotionEvent.ACTION_CANCEL) {
+                processScale(v, false);
+                processAlpha(v, false);
+            }
+            return false;
+        }
+
+        private void processScale(final View view, boolean isDown) {
+            Object tag = view.getTag(PRESSED_VIEW_SCALE_TAG);
+            if (!(tag instanceof Float)) return;
+            float value = isDown ? 1 + (Float) tag : 1;
+            view.animate()
+                    .scaleX(value)
+                    .scaleY(value)
+                    .setDuration(200)
+                    .start();
+        }
+
+        private void processAlpha(final View view, boolean isDown) {
+            Object tag = view.getTag(isDown ? PRESSED_VIEW_ALPHA_TAG : PRESSED_VIEW_ALPHA_SRC_TAG);
+            if (!(tag instanceof Float)) return;
+            view.setAlpha((Float) tag);
+        }
+
+        private static class LazyHolder {
+            private static final OnUtilsTouchListener INSTANCE = new OnUtilsTouchListener();
+        }
+    }
+
+    static class ClickDrawableWrapper extends ShadowUtils.DrawableWrapper {
+
+        private BitmapDrawable mBitmapDrawable = null;
+
+        // 低版本ColorDrawable.setColorFilter无效，这里直接用画笔画上
+        private Paint mColorPaint = null;
+
+        public ClickDrawableWrapper(Drawable drawable) {
+            super(drawable);
+            if (drawable instanceof ColorDrawable) {
+                mColorPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
+                mColorPaint.setColor(((ColorDrawable) drawable).getColor());
+            }
+        }
+
+        @Override
+        public void setColorFilter(ColorFilter cf) {
+            super.setColorFilter(cf);
+            // 低版本 StateListDrawable.selectDrawable 会重置 ColorFilter
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+                if (mColorPaint != null) {
+                    mColorPaint.setColorFilter(cf);
+                }
+            }
+        }
+
+        @Override
+        public void setAlpha(int alpha) {
+            super.setAlpha(alpha);
+            // 低版本 StateListDrawable.selectDrawable 会重置 Alpha
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+                if (mColorPaint != null) {
+                    mColorPaint.setColor(((ColorDrawable) getWrappedDrawable()).getColor());
+                }
+            }
+        }
+
+        @Override
+        public void draw(Canvas canvas) {
+            if (mBitmapDrawable == null) {
+                Bitmap bitmap = Bitmap.createBitmap(getBounds().width(), getBounds().height(), Bitmap.Config.ARGB_8888);
+                Canvas myCanvas = new Canvas(bitmap);
+                if (mColorPaint != null) {
+                    myCanvas.drawRect(getBounds(), mColorPaint);
+                } else {
+                    super.draw(myCanvas);
+                }
+                mBitmapDrawable = new BitmapDrawable(Resources.getSystem(), bitmap);
+                mBitmapDrawable.setBounds(getBounds());
+            }
+            mBitmapDrawable.draw(canvas);
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClipboardUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClipboardUtils.java
new file mode 100644
index 0000000000..82127b4847
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ClipboardUtils.java
@@ -0,0 +1,109 @@
+package com.blankj.utilcode.util;
+
+import android.content.ClipData;
+import android.content.ClipDescription;
+import android.content.ClipboardManager;
+import android.content.Context;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/25
+ *     desc  : utils about clipboard
+ * </pre>
+ */
+public final class ClipboardUtils {
+
+    private ClipboardUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Copy the text to clipboard.
+     * <p>The label equals name of package.</p>
+     *
+     * @param text The text.
+     */
+    public static void copyText(final CharSequence text) {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        cm.setPrimaryClip(ClipData.newPlainText(Utils.getApp().getPackageName(), text));
+    }
+
+    /**
+     * Copy the text to clipboard.
+     *
+     * @param label The label.
+     * @param text  The text.
+     */
+    public static void copyText(final CharSequence label, final CharSequence text) {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        cm.setPrimaryClip(ClipData.newPlainText(label, text));
+    }
+
+    /**
+     * Clear the clipboard.
+     */
+    public static void clear() {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        cm.setPrimaryClip(ClipData.newPlainText(null, ""));
+    }
+
+    /**
+     * Return the label for clipboard.
+     *
+     * @return the label for clipboard
+     */
+    public static CharSequence getLabel() {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        ClipDescription des = cm.getPrimaryClipDescription();
+        if (des == null) {
+            return "";
+        }
+        CharSequence label = des.getLabel();
+        if (label == null) {
+            return "";
+        }
+        return label;
+    }
+
+    /**
+     * Return the text for clipboard.
+     *
+     * @return the text for clipboard
+     */
+    public static CharSequence getText() {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        ClipData clip = cm.getPrimaryClip();
+        if (clip != null && clip.getItemCount() > 0) {
+            CharSequence text = clip.getItemAt(0).coerceToText(Utils.getApp());
+            if (text != null) {
+                return text;
+            }
+        }
+        return "";
+    }
+
+    /**
+     * Add the clipboard changed listener.
+     */
+    public static void addChangedListener(final ClipboardManager.OnPrimaryClipChangedListener listener) {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        cm.addPrimaryClipChangedListener(listener);
+    }
+
+    /**
+     * Remove the clipboard changed listener.
+     */
+    public static void removeChangedListener(final ClipboardManager.OnPrimaryClipChangedListener listener) {
+        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
+        //noinspection ConstantConditions
+        cm.removePrimaryClipChangedListener(listener);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloneUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloneUtils.java
new file mode 100644
index 0000000000..108c73e6d2
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloneUtils.java
@@ -0,0 +1,35 @@
+package com.blankj.utilcode.util;
+
+import java.lang.reflect.Type;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/01/30
+ *     desc  : utils about clone
+ * </pre>
+ */
+public final class CloneUtils {
+
+    private CloneUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Deep clone.
+     *
+     * @param data The data.
+     * @param type The type.
+     * @param <T>  The value type.
+     * @return The object of cloned.
+     */
+    public static <T> T deepClone(final T data, final Type type) {
+        try {
+            return UtilsBridge.fromJson(UtilsBridge.toJson(data), type);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CloseUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
similarity index 93%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/CloseUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
index 04d2d01bba..17da389466 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CloseUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
@@ -20,7 +20,7 @@ private CloseUtils() {
     /**
      * Close the io stream.
      *
-     * @param closeables closeables
+     * @param closeables The closeables.
      */
     public static void closeIO(final Closeable... closeables) {
         if (closeables == null) return;
@@ -38,7 +38,7 @@ public static void closeIO(final Closeable... closeables) {
     /**
      * Close the io stream quietly.
      *
-     * @param closeables closeables
+     * @param closeables The closeables.
      */
     public static void closeIOQuietly(final Closeable... closeables) {
         if (closeables == null) return;
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CollectionUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CollectionUtils.java
new file mode 100644
index 0000000000..2fcdbd18ed
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CollectionUtils.java
@@ -0,0 +1,949 @@
+package com.blankj.utilcode.util;
+
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/26
+ *     desc  : utils about collection
+ * </pre>
+ */
+public final class CollectionUtils {
+
+    private CollectionUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // listOf
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Returns a new read-only list of given elements.
+     *
+     * @param array The array.
+     * @return a new read-only list of given elements
+     */
+    @SafeVarargs
+    public static <E> List<E> newUnmodifiableList(E... array) {
+        return Collections.unmodifiableList(newArrayList(array));
+    }
+
+    /**
+     * Returns a new read-only list only of those given elements, that are not null.
+     *
+     * @param array The array.
+     * @return a new read-only list only of those given elements, that are not null
+     */
+    @SafeVarargs
+    public static <E> List<E> newUnmodifiableListNotNull(E... array) {
+        return Collections.unmodifiableList(newArrayListNotNull(array));
+    }
+
+    @SafeVarargs
+    public static <E> ArrayList<E> newArrayList(E... array) {
+        ArrayList<E> list = new ArrayList<>();
+        if (array == null || array.length == 0) return list;
+        for (E e : array) {
+            list.add(e);
+        }
+        return list;
+    }
+
+    @SafeVarargs
+    public static <E> ArrayList<E> newArrayListNotNull(E... array) {
+        ArrayList<E> list = new ArrayList<>();
+        if (array == null || array.length == 0) return list;
+        for (E e : array) {
+            if (e == null) continue;
+            list.add(e);
+        }
+        return list;
+    }
+
+    @SafeVarargs
+    public static <E> LinkedList<E> newLinkedList(E... array) {
+        LinkedList<E> list = new LinkedList<>();
+        if (array == null || array.length == 0) return list;
+        for (E e : array) {
+            list.add(e);
+        }
+        return list;
+    }
+
+    @SafeVarargs
+    public static <E> LinkedList<E> newLinkedListNotNull(E... array) {
+        LinkedList<E> list = new LinkedList<>();
+        if (array == null || array.length == 0) return list;
+        for (E e : array) {
+            if (e == null) continue;
+            list.add(e);
+        }
+        return list;
+    }
+
+    @SafeVarargs
+    public static <E> HashSet<E> newHashSet(E... array) {
+        HashSet<E> set = new HashSet<>();
+        if (array == null || array.length == 0) return set;
+        for (E e : array) {
+            set.add(e);
+        }
+        return set;
+    }
+
+    @SafeVarargs
+    public static <E> HashSet<E> newHashSetNotNull(E... array) {
+        HashSet<E> set = new HashSet<>();
+        if (array == null || array.length == 0) return set;
+        for (E e : array) {
+            if (e == null) continue;
+            set.add(e);
+        }
+        return set;
+    }
+
+    @SafeVarargs
+    public static <E> TreeSet<E> newTreeSet(Comparator<E> comparator, E... array) {
+        TreeSet<E> set = new TreeSet<>(comparator);
+        if (array == null || array.length == 0) return set;
+        for (E e : array) {
+            set.add(e);
+        }
+        return set;
+    }
+
+    @SafeVarargs
+    public static <E> TreeSet<E> newTreeSetNotNull(Comparator<E> comparator, E... array) {
+        TreeSet<E> set = new TreeSet<>(comparator);
+        if (array == null || array.length == 0) return set;
+        for (E e : array) {
+            if (e == null) continue;
+            set.add(e);
+        }
+        return set;
+    }
+
+    public static Collection newSynchronizedCollection(Collection collection) {
+        return Collections.synchronizedCollection(collection);
+    }
+
+    public static Collection newUnmodifiableCollection(Collection collection) {
+        return Collections.unmodifiableCollection(collection);
+    }
+
+    /**
+     * Returns a {@link Collection} containing the union
+     * of the given {@link Collection}s.
+     * <p>
+     * The cardinality of each element in the returned {@link Collection}
+     * will be equal to the maximum of the cardinality of that element
+     * in the two given {@link Collection}s.
+     *
+     * @param a the first collection
+     * @param b the second collection
+     * @return the union of the two collections
+     * @see Collection#addAll
+     */
+    public static Collection union(final Collection a, final Collection b) {
+        if (a == null && b == null) return new ArrayList();
+        if (a == null) return new ArrayList<Object>(b);
+        if (b == null) return new ArrayList<Object>(a);
+        ArrayList<Object> list = new ArrayList<>();
+        Map<Object, Integer> mapA = getCardinalityMap(a);
+        Map<Object, Integer> mapB = getCardinalityMap(b);
+        Set<Object> elts = new HashSet<Object>(a);
+        elts.addAll(b);
+        for (Object obj : elts) {
+            for (int i = 0, m = Math.max(getFreq(obj, mapA), getFreq(obj, mapB)); i < m; i++) {
+                list.add(obj);
+            }
+        }
+        return list;
+    }
+
+    /**
+     * Returns a {@link Collection} containing the intersection
+     * of the given {@link Collection}s.
+     * <p>
+     * The cardinality of each element in the returned {@link Collection}
+     * will be equal to the minimum of the cardinality of that element
+     * in the two given {@link Collection}s.
+     *
+     * @param a the first collection
+     * @param b the second collection
+     * @return the intersection of the two collections
+     * @see Collection#retainAll
+     */
+    public static Collection intersection(final Collection a, final Collection b) {
+        if (a == null || b == null) return new ArrayList();
+        ArrayList<Object> list = new ArrayList<>();
+        Map mapA = getCardinalityMap(a);
+        Map mapB = getCardinalityMap(b);
+        Set<Object> elts = new HashSet<Object>(a);
+        elts.addAll(b);
+        for (Object obj : elts) {
+            for (int i = 0, m = Math.min(getFreq(obj, mapA), getFreq(obj, mapB)); i < m; i++) {
+                list.add(obj);
+            }
+        }
+        return list;
+    }
+
+    private static int getFreq(final Object obj, final Map freqMap) {
+        Integer count = (Integer) freqMap.get(obj);
+        if (count != null) {
+            return count;
+        }
+        return 0;
+    }
+
+    /**
+     * Returns a {@link Collection} containing the exclusive disjunction
+     * (symmetric difference) of the given {@link Collection}s.
+     * <p>
+     * The cardinality of each element <i>e</i> in the returned {@link Collection}
+     * will be equal to
+     * <tt>max(cardinality(<i>e</i>,<i>a</i>),cardinality(<i>e</i>,<i>b</i>)) - min(cardinality(<i>e</i>,<i>a</i>),cardinality(<i>e</i>,<i>b</i>))</tt>.
+     * <p>
+     * This is equivalent to
+     * <tt>{@link #subtract subtract}({@link #union union(a,b)},{@link #intersection intersection(a,b)})</tt>
+     * or
+     * <tt>{@link #union union}({@link #subtract subtract(a,b)},{@link #subtract subtract(b,a)})</tt>.
+     *
+     * @param a the first collection
+     * @param b the second collection
+     * @return the symmetric difference of the two collections
+     */
+    public static Collection disjunction(final Collection a, final Collection b) {
+        if (a == null && b == null) return new ArrayList();
+        if (a == null) return new ArrayList<Object>(b);
+        if (b == null) return new ArrayList<Object>(a);
+        ArrayList<Object> list = new ArrayList<>();
+        Map mapA = getCardinalityMap(a);
+        Map mapB = getCardinalityMap(b);
+        Set<Object> elts = new HashSet<Object>(a);
+        elts.addAll(b);
+        for (Object obj : elts) {
+            for (int i = 0, m = ((Math.max(getFreq(obj, mapA), getFreq(obj, mapB)))
+                    - (Math.min(getFreq(obj, mapA), getFreq(obj, mapB)))); i < m; i++) {
+                list.add(obj);
+            }
+        }
+        return list;
+    }
+
+    /**
+     * Returns a new {@link Collection} containing <tt><i>a</i> - <i>b</i></tt>.
+     * The cardinality of each element <i>e</i> in the returned {@link Collection}
+     * will be the cardinality of <i>e</i> in <i>a</i> minus the cardinality
+     * of <i>e</i> in <i>b</i>, or zero, whichever is greater.
+     *
+     * @param a the collection to subtract from
+     * @param b the collection to subtract
+     * @return a new collection with the results
+     * @see Collection#removeAll
+     */
+    public static Collection subtract(final Collection a, final Collection b) {
+        if (a == null) return new ArrayList();
+        if (b == null) return new ArrayList<Object>(a);
+        ArrayList<Object> list = new ArrayList<Object>(a);
+        for (Object o : b) {
+            list.remove(o);
+        }
+        return list;
+    }
+
+    /**
+     * Returns <code>true</code> iff at least one element is in both collections.
+     * <p>
+     * In other words, this method returns <code>true</code> iff the
+     * {@link #intersection} of <i>coll1</i> and <i>coll2</i> is not empty.
+     *
+     * @param coll1 the first collection
+     * @param coll2 the first collection
+     * @return <code>true</code> iff the intersection of the collections is non-empty
+     * @see #intersection
+     */
+    public static boolean containsAny(final Collection coll1, final Collection coll2) {
+        if (coll1 == null || coll2 == null) return false;
+        if (coll1.size() < coll2.size()) {
+            for (Object o : coll1) {
+                if (coll2.contains(o)) {
+                    return true;
+                }
+            }
+        } else {
+            for (Object o : coll2) {
+                if (coll1.contains(o)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+
+    /**
+     * Returns a {@link Map} mapping each unique element in the given
+     * {@link Collection} to an {@link Integer} representing the number
+     * of occurrences of that element in the {@link Collection}.
+     * <p>
+     * Only those elements present in the collection will appear as
+     * keys in the map.
+     *
+     * @param coll the collection to get the cardinality map for, must not be null
+     * @return the populated cardinality map
+     */
+    public static Map<Object, Integer> getCardinalityMap(final Collection coll) {
+        Map<Object, Integer> count = new HashMap<>();
+        if (coll == null) return count;
+        for (Object obj : coll) {
+            Integer c = count.get(obj);
+            if (c == null) {
+                count.put(obj, 1);
+            } else {
+                count.put(obj, c + 1);
+            }
+        }
+        return count;
+    }
+
+    /**
+     * Returns <tt>true</tt> iff <i>a</i> is a sub-collection of <i>b</i>,
+     * that is, iff the cardinality of <i>e</i> in <i>a</i> is less
+     * than or equal to the cardinality of <i>e</i> in <i>b</i>,
+     * for each element <i>e</i> in <i>a</i>.
+     *
+     * @param a the first (sub?) collection
+     * @param b the second (super?) collection
+     * @return <code>true</code> iff <i>a</i> is a sub-collection of <i>b</i>
+     * @see #isProperSubCollection
+     * @see Collection#containsAll
+     */
+    public static boolean isSubCollection(final Collection a, final Collection b) {
+        if (a == null || b == null) return false;
+        Map mapA = getCardinalityMap(a);
+        Map mapB = getCardinalityMap(b);
+        for (Object obj : a) {
+            if (getFreq(obj, mapA) > getFreq(obj, mapB)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Returns <tt>true</tt> iff <i>a</i> is a <i>proper</i> sub-collection of <i>b</i>,
+     * that is, iff the cardinality of <i>e</i> in <i>a</i> is less
+     * than or equal to the cardinality of <i>e</i> in <i>b</i>,
+     * for each element <i>e</i> in <i>a</i>, and there is at least one
+     * element <i>f</i> such that the cardinality of <i>f</i> in <i>b</i>
+     * is strictly greater than the cardinality of <i>f</i> in <i>a</i>.
+     * <p>
+     * The implementation assumes
+     * <ul>
+     * <li><code>a.size()</code> and <code>b.size()</code> represent the
+     * total cardinality of <i>a</i> and <i>b</i>, resp. </li>
+     * <li><code>a.size() < Integer.MAXVALUE</code></li>
+     * </ul>
+     *
+     * @param a the first (sub?) collection
+     * @param b the second (super?) collection
+     * @return <code>true</code> iff <i>a</i> is a <i>proper</i> sub-collection of <i>b</i>
+     * @see #isSubCollection
+     * @see Collection#containsAll
+     */
+    public static boolean isProperSubCollection(final Collection a, final Collection b) {
+        if (a == null || b == null) return false;
+        return a.size() < b.size() && isSubCollection(a, b);
+    }
+
+    /**
+     * Returns <tt>true</tt> iff the given {@link Collection}s contain
+     * exactly the same elements with exactly the same cardinalities.
+     * <p>
+     * That is, iff the cardinality of <i>e</i> in <i>a</i> is
+     * equal to the cardinality of <i>e</i> in <i>b</i>,
+     * for each element <i>e</i> in <i>a</i> or <i>b</i>.
+     *
+     * @param a the first collection
+     * @param b the second collection
+     * @return <code>true</code> iff the collections contain the same elements with the same cardinalities.
+     */
+    public static boolean isEqualCollection(final Collection a, final Collection b) {
+        if (a == null || b == null) return false;
+        if (a.size() != b.size()) {
+            return false;
+        } else {
+            Map mapA = getCardinalityMap(a);
+            Map mapB = getCardinalityMap(b);
+            if (mapA.size() != mapB.size()) {
+                return false;
+            } else {
+                for (Object obj : mapA.keySet()) {
+                    if (getFreq(obj, mapA) != getFreq(obj, mapB)) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+        }
+    }
+
+    /**
+     * Returns the number of occurrences of <i>obj</i> in <i>coll</i>.
+     *
+     * @param obj  the object to find the cardinality of
+     * @param coll the collection to search
+     * @return the the number of occurrences of obj in coll
+     */
+    public static <E> int cardinality(E obj, final Collection<E> coll) {
+        if (coll == null) return 0;
+        if (coll instanceof Set) {
+            return (coll.contains(obj) ? 1 : 0);
+        }
+        int count = 0;
+        if (obj == null) {
+            for (E e : coll) {
+                if (e == null) {
+                    count++;
+                }
+            }
+        } else {
+            for (E e : coll) {
+                if (obj.equals(e)) {
+                    count++;
+                }
+            }
+        }
+        return count;
+    }
+
+    /**
+     * Finds the first element in the given collection which matches the given predicate.
+     * <p>
+     * If the input collection or predicate is null, or no element of the collection
+     * matches the predicate, null is returned.
+     *
+     * @param collection the collection to search, may be null
+     * @param predicate  the predicate to use, may be null
+     * @return the first element of the collection which matches the predicate or null if none could be found
+     */
+    public static <E> E find(Collection<E> collection, Predicate<E> predicate) {
+        if (collection == null || predicate == null) return null;
+        for (E item : collection) {
+            if (predicate.evaluate(item)) {
+                return item;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Executes the given closure on each element in the collection.
+     * <p>
+     * If the input collection or closure is null, there is no change made.
+     *
+     * @param collection the collection to get the input from, may be null
+     * @param closure    the closure to perform, may be null
+     */
+    public static <E> void forAllDo(Collection<E> collection, Closure<E> closure) {
+        if (collection == null || closure == null) return;
+        int index = 0;
+        for (E e : collection) {
+            closure.execute(index++, e);
+        }
+    }
+
+    /**
+     * Filter the collection by applying a Predicate to each element. If the
+     * predicate returns false, remove the element.
+     * <p>
+     * If the input collection or predicate is null, there is no change made.
+     *
+     * @param collection the collection to get the input from, may be null
+     * @param predicate  the predicate to use as a filter, may be null
+     */
+    public static <E> void filter(Collection<E> collection, Predicate<E> predicate) {
+        if (collection == null || predicate == null) return;
+        for (Iterator it = collection.iterator(); it.hasNext(); ) {
+            if (!predicate.evaluate((E) it.next())) {
+                it.remove();
+            }
+        }
+    }
+
+    /**
+     * Selects all elements from input collection which match the given predicate
+     * into an output collection.
+     * <p>
+     * A <code>null</code> predicate matches no elements.
+     *
+     * @param inputCollection the collection to get the input from, may not be null
+     * @param predicate       the predicate to use, may be null
+     * @return the elements matching the predicate (new list)
+     * @throws NullPointerException if the input collection is null
+     */
+    public static <E> Collection<E> select(Collection<E> inputCollection, Predicate<E> predicate) {
+        if (inputCollection == null || predicate == null) return new ArrayList<>();
+        ArrayList<E> answer = new ArrayList<>(inputCollection.size());
+        for (E o : inputCollection) {
+            if (predicate.evaluate(o)) {
+                answer.add(o);
+            }
+        }
+        return answer;
+    }
+
+    /**
+     * Selects all elements from inputCollection which don't match the given predicate
+     * into an output collection.
+     * <p>
+     * If the input predicate is <code>null</code>, the result is an empty list.
+     *
+     * @param inputCollection the collection to get the input from, may not be null
+     * @param predicate       the predicate to use, may be null
+     * @return the elements <b>not</b> matching the predicate (new list)
+     * @throws NullPointerException if the input collection is null
+     */
+    public static <E> Collection<E> selectRejected(Collection<E> inputCollection, Predicate<E> predicate) {
+        if (inputCollection == null || predicate == null) return new ArrayList<>();
+        ArrayList<E> answer = new ArrayList<>(inputCollection.size());
+        for (E o : inputCollection) {
+            if (!predicate.evaluate(o)) {
+                answer.add(o);
+            }
+        }
+        return answer;
+    }
+
+    /**
+     * Transform the collection by applying a Transformer to each element.
+     * <p>
+     * If the input collection or transformer is null, there is no change made.
+     * <p>
+     * This routine is best for Lists, for which set() is used to do the
+     * transformations "in place."  For other Collections, clear() and addAll()
+     * are used to replace elements.
+     * <p>
+     * If the input collection controls its input, such as a Set, and the
+     * Transformer creates duplicates (or are otherwise invalid), the
+     * collection may reduce in size due to calling this method.
+     *
+     * @param collection  the collection to get the input from, may be null
+     * @param transformer the transformer to perform, may be null
+     */
+    public static <E1, E2> void transform(Collection<E1> collection, Transformer<E1, E2> transformer) {
+        if (collection == null || transformer == null) return;
+        if (collection instanceof List) {
+            List list = (List) collection;
+            for (ListIterator it = list.listIterator(); it.hasNext(); ) {
+                it.set(transformer.transform((E1) it.next()));
+            }
+        } else {
+            Collection resultCollection = collect(collection, transformer);
+            collection.clear();
+            collection.addAll(resultCollection);
+        }
+    }
+
+
+    /**
+     * Returns a new Collection consisting of the elements of inputCollection transformed
+     * by the given transformer.
+     * <p>
+     * If the input transformer is null, the result is an empty list.
+     *
+     * @param inputCollection the collection to get the input from, may be null
+     * @param transformer     the transformer to use, may be null
+     * @return the transformed result (new list)
+     */
+    public static <E1, E2> Collection<E2> collect(final Collection<E1> inputCollection,
+                                                  final Transformer<E1, E2> transformer) {
+        List<E2> answer = new ArrayList<>();
+        if (inputCollection == null || transformer == null) return answer;
+        for (E1 e1 : inputCollection) {
+            answer.add(transformer.transform(e1));
+        }
+        return answer;
+    }
+
+    /**
+     * Counts the number of elements in the input collection that match the predicate.
+     * <p>
+     * A <code>null</code> collection or predicate matches no elements.
+     *
+     * @param collection the collection to get the input from, may be null
+     * @param predicate  the predicate to use, may be null
+     * @return the number of matches for the predicate in the collection
+     */
+    public static <E> int countMatches(Collection<E> collection, Predicate<E> predicate) {
+        if (collection == null || predicate == null) return 0;
+        int count = 0;
+        for (E o : collection) {
+            if (predicate.evaluate(o)) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    /**
+     * Answers true if a predicate is true for at least one element of a collection.
+     * <p>
+     * A <code>null</code> collection or predicate returns false.
+     *
+     * @param collection the collection to get the input from, may be null
+     * @param predicate  the predicate to use, may be null
+     * @return true if at least one element of the collection matches the predicate
+     */
+    public static <E> boolean exists(Collection<E> collection, Predicate<E> predicate) {
+        if (collection == null || predicate == null) return false;
+        for (E o : collection) {
+            if (predicate.evaluate(o)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Adds an element to the collection unless the element is null.
+     *
+     * @param collection the collection to add to, may be null
+     * @param object     the object to add, if null it will not be added
+     * @return true if the collection changed
+     */
+    public static <E> boolean addIgnoreNull(Collection<E> collection, E object) {
+        if (collection == null) return false;
+        return (object != null && collection.add(object));
+    }
+
+    /**
+     * Adds all elements in the iteration to the given collection.
+     *
+     * @param collection the collection to add to, may be null
+     * @param iterator   the iterator of elements to add, may be null
+     */
+    public static <E> void addAll(Collection<E> collection, Iterator<E> iterator) {
+        if (collection == null || iterator == null) return;
+        while (iterator.hasNext()) {
+            collection.add(iterator.next());
+        }
+    }
+
+    /**
+     * Adds all elements in the enumeration to the given collection.
+     *
+     * @param collection  the collection to add to, may be null
+     * @param enumeration the enumeration of elements to add, may be null
+     */
+    public static <E> void addAll(Collection<E> collection, Enumeration<E> enumeration) {
+        if (collection == null || enumeration == null) return;
+        while (enumeration.hasMoreElements()) {
+            collection.add(enumeration.nextElement());
+        }
+    }
+
+    /**
+     * Adds all elements in the array to the given collection.
+     *
+     * @param collection the collection to add to, may be null
+     * @param elements   the array of elements to add, may be null
+     */
+    public static <E> void addAll(Collection<E> collection, E[] elements) {
+        if (collection == null || elements == null || elements.length == 0) return;
+        collection.addAll(Arrays.asList(elements));
+    }
+
+    /**
+     * Returns the <code>index</code>-th value in <code>object</code>, throwing
+     * <code>IndexOutOfBoundsException</code> if there is no such element or
+     * <code>IllegalArgumentException</code> if <code>object</code> is not an
+     * instance of one of the supported types.
+     * <p>
+     * The supported types, and associated semantics are:
+     * <ul>
+     * <li> Map -- the value returned is the <code>Map.Entry</code> in position
+     * <code>index</code> in the map's <code>entrySet</code> iterator,
+     * if there is such an entry.</li>
+     * <li> List -- this method is equivalent to the list's get method.</li>
+     * <li> Array -- the <code>index</code>-th array entry is returned,
+     * if there is such an entry; otherwise an <code>IndexOutOfBoundsException</code>
+     * is thrown.</li>
+     * <li> Collection -- the value returned is the <code>index</code>-th object
+     * returned by the collection's default iterator, if there is such an element.</li>
+     * <li> Iterator or Enumeration -- the value returned is the
+     * <code>index</code>-th object in the Iterator/Enumeration, if there
+     * is such an element.  The Iterator/Enumeration is advanced to
+     * <code>index</code> (or to the end, if <code>index</code> exceeds the
+     * number of entries) as a side effect of this method.</li>
+     * </ul>
+     *
+     * @param object the object to get a value from
+     * @param index  the index to get
+     * @return the object at the specified index
+     * @throws IndexOutOfBoundsException if the index is invalid
+     * @throws IllegalArgumentException  if the object type is invalid
+     */
+    public static Object get(Object object, int index) {
+        if (object == null) return null;
+        if (index < 0) {
+            throw new IndexOutOfBoundsException("Index cannot be negative: " + index);
+        }
+        if (object instanceof Map) {
+            Map map = (Map) object;
+            Iterator iterator = map.entrySet().iterator();
+            return get(iterator, index);
+        } else if (object instanceof List) {
+            return ((List) object).get(index);
+        } else if (object instanceof Object[]) {
+            return ((Object[]) object)[index];
+        } else if (object instanceof Iterator) {
+            Iterator it = (Iterator) object;
+            while (it.hasNext()) {
+                index--;
+                if (index == -1) {
+                    return it.next();
+                } else {
+                    it.next();
+                }
+            }
+            throw new IndexOutOfBoundsException("Entry does not exist: " + index);
+        } else if (object instanceof Collection) {
+            Iterator iterator = ((Collection) object).iterator();
+            return get(iterator, index);
+        } else if (object instanceof Enumeration) {
+            Enumeration it = (Enumeration) object;
+            while (it.hasMoreElements()) {
+                index--;
+                if (index == -1) {
+                    return it.nextElement();
+                } else {
+                    it.nextElement();
+                }
+            }
+            throw new IndexOutOfBoundsException("Entry does not exist: " + index);
+        } else {
+            try {
+                return Array.get(object, index);
+            } catch (IllegalArgumentException ex) {
+                throw new IllegalArgumentException("Unsupported object type: " + object.getClass().getName());
+            }
+        }
+    }
+
+    /**
+     * Gets the size of the collection/iterator specified.
+     * <p>
+     * This method can handles objects as follows
+     * <ul>
+     * <li>Collection - the collection size
+     * <li>Map - the map size
+     * <li>Array - the array size
+     * <li>Iterator - the number of elements remaining in the iterator
+     * <li>Enumeration - the number of elements remaining in the enumeration
+     * </ul>
+     *
+     * @param object the object to get the size of
+     * @return the size of the specified collection
+     * @throws IllegalArgumentException thrown if object is not recognised or null
+     */
+    public static int size(Object object) {
+        if (object == null) return 0;
+        int total = 0;
+        if (object instanceof Map) {
+            total = ((Map) object).size();
+        } else if (object instanceof Collection) {
+            total = ((Collection) object).size();
+        } else if (object instanceof Object[]) {
+            total = ((Object[]) object).length;
+        } else if (object instanceof Iterator) {
+            Iterator it = (Iterator) object;
+            while (it.hasNext()) {
+                total++;
+                it.next();
+            }
+        } else if (object instanceof Enumeration) {
+            Enumeration it = (Enumeration) object;
+            while (it.hasMoreElements()) {
+                total++;
+                it.nextElement();
+            }
+        } else {
+            try {
+                total = Array.getLength(object);
+            } catch (IllegalArgumentException ex) {
+                throw new IllegalArgumentException("Unsupported object type: " + object.getClass().getName());
+            }
+        }
+        return total;
+    }
+
+    /**
+     * Checks if the specified collection/array/iterator is empty.
+     * <p>
+     * This method can handles objects as follows
+     * <ul>
+     * <li>Collection - via collection isEmpty
+     * <li>Map - via map isEmpty
+     * <li>Array - using array size
+     * <li>Iterator - via hasNext
+     * <li>Enumeration - via hasMoreElements
+     * </ul>
+     * <p>
+     * Note: This method is named to avoid clashing with
+     * {@link #isEmpty(Collection)}.
+     *
+     * @param object the object to get the size of, not null
+     * @return true if empty
+     * @throws IllegalArgumentException thrown if object is not recognised or null
+     */
+    public static boolean sizeIsEmpty(Object object) {
+        if (object == null) return true;
+        if (object instanceof Collection) {
+            return ((Collection) object).isEmpty();
+        } else if (object instanceof Map) {
+            return ((Map) object).isEmpty();
+        } else if (object instanceof Object[]) {
+            return ((Object[]) object).length == 0;
+        } else if (object instanceof Iterator) {
+            return !((Iterator) object).hasNext();
+        } else if (object instanceof Enumeration) {
+            return !((Enumeration) object).hasMoreElements();
+        } else {
+            try {
+                return Array.getLength(object) == 0;
+            } catch (IllegalArgumentException ex) {
+                throw new IllegalArgumentException("Unsupported object type: " + object.getClass().getName());
+            }
+        }
+    }
+
+    /**
+     * Null-safe check if the specified collection is empty.
+     * <p>
+     * Null returns true.
+     *
+     * @param coll the collection to check, may be null
+     * @return true if empty or null
+     */
+    public static boolean isEmpty(Collection coll) {
+        return coll == null || coll.size() == 0;
+    }
+
+    /**
+     * Null-safe check if the specified collection is not empty.
+     * <p>
+     * Null returns false.
+     *
+     * @param coll the collection to check, may be null
+     * @return true if non-null and non-empty
+     */
+    public static boolean isNotEmpty(Collection coll) {
+        return !isEmpty(coll);
+    }
+
+
+    /**
+     * Returns a collection containing all the elements in <code>collection</code>
+     * that are also in <code>retain</code>. The cardinality of an element <code>e</code>
+     * in the returned collection is the same as the cardinality of <code>e</code>
+     * in <code>collection</code> unless <code>retain</code> does not contain <code>e</code>, in which
+     * case the cardinality is zero. This method is useful if you do not wish to modify
+     * the collection <code>c</code> and thus cannot call <code>c.retainAll(retain);</code>.
+     *
+     * @param collection the collection whose contents are the target of the #retailAll operation
+     * @param retain     the collection containing the elements to be retained in the returned collection
+     * @return a <code>Collection</code> containing all the elements of <code>collection</code>
+     * that occur at least once in <code>retain</code>.
+     */
+    public static <E> Collection<E> retainAll(Collection<E> collection, Collection<E> retain) {
+        if (collection == null || retain == null) return new ArrayList<>();
+        List<E> list = new ArrayList<>();
+        for (E item : collection) {
+            if (retain.contains(item)) {
+                list.add(item);
+            }
+        }
+        return list;
+    }
+
+    /**
+     * Removes the elements in <code>remove</code> from <code>collection</code>. That is, this
+     * method returns a collection containing all the elements in <code>c</code>
+     * that are not in <code>remove</code>. The cardinality of an element <code>e</code>
+     * in the returned collection is the same as the cardinality of <code>e</code>
+     * in <code>collection</code> unless <code>remove</code> contains <code>e</code>, in which
+     * case the cardinality is zero. This method is useful if you do not wish to modify
+     * the collection <code>c</code> and thus cannot call <code>collection.removeAll(remove);</code>.
+     *
+     * @param collection the collection from which items are removed (in the returned collection)
+     * @param remove     the items to be removed from the returned <code>collection</code>
+     * @return a <code>Collection</code> containing all the elements of <code>collection</code> except
+     * any elements that also occur in <code>remove</code>.
+     */
+    public static <E> Collection<E> removeAll(Collection<E> collection, Collection<E> remove) {
+        if (collection == null) return new ArrayList<>();
+        if (remove == null) return new ArrayList<>(collection);
+        List<E> list = new ArrayList<>();
+        for (E obj : collection) {
+            if (!remove.contains(obj)) {
+                list.add(obj);
+            }
+        }
+        return list;
+    }
+
+    /**
+     * Randomly permutes the specified list using a default source of randomness.
+     *
+     * @param list the list to be shuffled.
+     * @throws UnsupportedOperationException if the specified list or
+     *                                       its list-iterator does not support the <tt>set</tt> operation.
+     */
+    public static <T> void shuffle(List<T> list) {
+        Collections.shuffle(list);
+    }
+
+    /**
+     * Return the string of collection.
+     *
+     * @param collection The collection.
+     * @return the string of collection
+     */
+    public static String toString(Collection collection) {
+        if (collection == null) return "null";
+        return collection.toString();
+    }
+
+    public interface Closure<E> {
+        void execute(int index, E item);
+    }
+
+    public interface Transformer<E1, E2> {
+        E2 transform(E1 input);
+    }
+
+    public interface Predicate<E> {
+        boolean evaluate(E item);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ColorUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ColorUtils.java
new file mode 100644
index 0000000000..c75e866124
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ColorUtils.java
@@ -0,0 +1,217 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.Color;
+import androidx.annotation.ColorInt;
+import androidx.annotation.ColorRes;
+import androidx.annotation.FloatRange;
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/15
+ *     desc  : utils about color
+ * </pre>
+ */
+public final class ColorUtils {
+
+    private ColorUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Returns a color associated with a particular resource ID.
+     *
+     * @param id The desired resource identifier.
+     * @return a color associated with a particular resource ID
+     */
+    public static int getColor(@ColorRes int id) {
+        return ContextCompat.getColor(Utils.getApp(), id);
+    }
+
+    /**
+     * Set the alpha component of {@code color} to be {@code alpha}.
+     *
+     * @param color The color.
+     * @param alpha Alpha component \([0..255]\) of the color.
+     * @return the {@code color} with {@code alpha} component
+     */
+    public static int setAlphaComponent(@ColorInt final int color,
+                                        @IntRange(from = 0x0, to = 0xFF) int alpha) {
+        return (color & 0x00ffffff) | (alpha << 24);
+    }
+
+    /**
+     * Set the alpha component of {@code color} to be {@code alpha}.
+     *
+     * @param color The color.
+     * @param alpha Alpha component \([0..1]\) of the color.
+     * @return the {@code color} with {@code alpha} component
+     */
+    public static int setAlphaComponent(@ColorInt int color,
+                                        @FloatRange(from = 0, to = 1) float alpha) {
+        return (color & 0x00ffffff) | ((int) (alpha * 255.0f + 0.5f) << 24);
+    }
+
+    /**
+     * Set the red component of {@code color} to be {@code red}.
+     *
+     * @param color The color.
+     * @param red   Red component \([0..255]\) of the color.
+     * @return the {@code color} with {@code red} component
+     */
+    public static int setRedComponent(@ColorInt int color,
+                                      @IntRange(from = 0x0, to = 0xFF) int red) {
+        return (color & 0xff00ffff) | (red << 16);
+    }
+
+    /**
+     * Set the red component of {@code color} to be {@code red}.
+     *
+     * @param color The color.
+     * @param red   Red component \([0..1]\) of the color.
+     * @return the {@code color} with {@code red} component
+     */
+    public static int setRedComponent(@ColorInt int color,
+                                      @FloatRange(from = 0, to = 1) float red) {
+        return (color & 0xff00ffff) | ((int) (red * 255.0f + 0.5f) << 16);
+    }
+
+    /**
+     * Set the green component of {@code color} to be {@code green}.
+     *
+     * @param color The color.
+     * @param green Green component \([0..255]\) of the color.
+     * @return the {@code color} with {@code green} component
+     */
+    public static int setGreenComponent(@ColorInt int color,
+                                        @IntRange(from = 0x0, to = 0xFF) int green) {
+        return (color & 0xffff00ff) | (green << 8);
+    }
+
+    /**
+     * Set the green component of {@code color} to be {@code green}.
+     *
+     * @param color The color.
+     * @param green Green component \([0..1]\) of the color.
+     * @return the {@code color} with {@code green} component
+     */
+    public static int setGreenComponent(@ColorInt int color,
+                                        @FloatRange(from = 0, to = 1) float green) {
+        return (color & 0xffff00ff) | ((int) (green * 255.0f + 0.5f) << 8);
+    }
+
+    /**
+     * Set the blue component of {@code color} to be {@code blue}.
+     *
+     * @param color The color.
+     * @param blue  Blue component \([0..255]\) of the color.
+     * @return the {@code color} with {@code blue} component
+     */
+    public static int setBlueComponent(@ColorInt int color,
+                                       @IntRange(from = 0x0, to = 0xFF) int blue) {
+        return (color & 0xffffff00) | blue;
+    }
+
+    /**
+     * Set the blue component of {@code color} to be {@code blue}.
+     *
+     * @param color The color.
+     * @param blue  Blue component \([0..1]\) of the color.
+     * @return the {@code color} with {@code blue} component
+     */
+    public static int setBlueComponent(@ColorInt int color,
+                                       @FloatRange(from = 0, to = 1) float blue) {
+        return (color & 0xffffff00) | (int) (blue * 255.0f + 0.5f);
+    }
+
+    /**
+     * Color-string to color-int.
+     * <p>Supported formats are:</p>
+     *
+     * <ul>
+     * <li><code>#RRGGBB</code></li>
+     * <li><code>#AARRGGBB</code></li>
+     * </ul>
+     *
+     * <p>The following names are also accepted: <code>red</code>, <code>blue</code>,
+     * <code>green</code>, <code>black</code>, <code>white</code>, <code>gray</code>,
+     * <code>cyan</code>, <code>magenta</code>, <code>yellow</code>, <code>lightgray</code>,
+     * <code>darkgray</code>, <code>grey</code>, <code>lightgrey</code>, <code>darkgrey</code>,
+     * <code>aqua</code>, <code>fuchsia</code>, <code>lime</code>, <code>maroon</code>,
+     * <code>navy</code>, <code>olive</code>, <code>purple</code>, <code>silver</code>,
+     * and <code>teal</code>.</p>
+     *
+     * @param colorString The color-string.
+     * @return color-int
+     * @throws IllegalArgumentException The string cannot be parsed.
+     */
+    public static int string2Int(@NonNull String colorString) {
+        return Color.parseColor(colorString);
+    }
+
+    /**
+     * Color-int to color-string.
+     *
+     * @param colorInt The color-int.
+     * @return color-string
+     */
+    public static String int2RgbString(@ColorInt int colorInt) {
+        colorInt = colorInt & 0x00ffffff;
+        String color = Integer.toHexString(colorInt);
+        while (color.length() < 6) {
+            color = "0" + color;
+        }
+        return "#" + color;
+    }
+
+    /**
+     * Color-int to color-string.
+     *
+     * @param colorInt The color-int.
+     * @return color-string
+     */
+    public static String int2ArgbString(@ColorInt final int colorInt) {
+        String color = Integer.toHexString(colorInt);
+        while (color.length() < 6) {
+            color = "0" + color;
+        }
+        while (color.length() < 8) {
+            color = "f" + color;
+        }
+        return "#" + color;
+    }
+
+    /**
+     * Return the random color.
+     *
+     * @return the random color
+     */
+    public static int getRandomColor() {
+        return getRandomColor(true);
+    }
+
+    /**
+     * Return the random color.
+     *
+     * @param supportAlpha True to support alpha, false otherwise.
+     * @return the random color
+     */
+    public static int getRandomColor(final boolean supportAlpha) {
+        int high = supportAlpha ? (int) (Math.random() * 0x100) << 24 : 0xFF000000;
+        return high | (int) (Math.random() * 0x1000000);
+    }
+
+    /**
+     * Return whether the color is light.
+     *
+     * @param color The color.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLightColor(@ColorInt int color) {
+        return 0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color) >= 127.5;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
new file mode 100644
index 0000000000..d6f9eaafaf
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
@@ -0,0 +1,761 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.view.View;
+
+import com.blankj.utilcode.constant.MemoryConstants;
+import com.blankj.utilcode.constant.TimeConstants;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.OutputStream;
+import java.io.Serializable;
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/13
+ *     desc  : utils about convert
+ * </pre>
+ */
+public final class ConvertUtils {
+
+    private static final int    BUFFER_SIZE      = 8192;
+    private static final char[] HEX_DIGITS_UPPER =
+            {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
+    private static final char[] HEX_DIGITS_LOWER =
+            {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+
+    private ConvertUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Int to hex string.
+     *
+     * @param num The int number.
+     * @return the hex string
+     */
+    public static String int2HexString(int num) {
+        return Integer.toHexString(num);
+    }
+
+    /**
+     * Hex string to int.
+     *
+     * @param hexString The hex string.
+     * @return the int
+     */
+    public static int hexString2Int(String hexString) {
+        return Integer.parseInt(hexString, 16);
+    }
+
+    /**
+     * Bytes to bits.
+     *
+     * @param bytes The bytes.
+     * @return bits
+     */
+    public static String bytes2Bits(final byte[] bytes) {
+        if (bytes == null || bytes.length == 0) return "";
+        StringBuilder sb = new StringBuilder();
+        for (byte aByte : bytes) {
+            for (int j = 7; j >= 0; --j) {
+                sb.append(((aByte >> j) & 0x01) == 0 ? '0' : '1');
+            }
+        }
+        return sb.toString();
+    }
+
+    /**
+     * Bits to bytes.
+     *
+     * @param bits The bits.
+     * @return bytes
+     */
+    public static byte[] bits2Bytes(String bits) {
+        int lenMod = bits.length() % 8;
+        int byteLen = bits.length() / 8;
+        // add "0" until length to 8 times
+        if (lenMod != 0) {
+            for (int i = lenMod; i < 8; i++) {
+                bits = "0" + bits;
+            }
+            byteLen++;
+        }
+        byte[] bytes = new byte[byteLen];
+        for (int i = 0; i < byteLen; ++i) {
+            for (int j = 0; j < 8; ++j) {
+                bytes[i] <<= 1;
+                bytes[i] |= bits.charAt(i * 8 + j) - '0';
+            }
+        }
+        return bytes;
+    }
+
+    /**
+     * Bytes to chars.
+     *
+     * @param bytes The bytes.
+     * @return chars
+     */
+    public static char[] bytes2Chars(final byte[] bytes) {
+        if (bytes == null) return null;
+        int len = bytes.length;
+        if (len <= 0) return null;
+        char[] chars = new char[len];
+        for (int i = 0; i < len; i++) {
+            chars[i] = (char) (bytes[i] & 0xff);
+        }
+        return chars;
+    }
+
+    /**
+     * Chars to bytes.
+     *
+     * @param chars The chars.
+     * @return bytes
+     */
+    public static byte[] chars2Bytes(final char[] chars) {
+        if (chars == null || chars.length <= 0) return null;
+        int len = chars.length;
+        byte[] bytes = new byte[len];
+        for (int i = 0; i < len; i++) {
+            bytes[i] = (byte) (chars[i]);
+        }
+        return bytes;
+    }
+
+    /**
+     * Bytes to hex string.
+     * <p>e.g. bytes2HexString(new byte[] { 0, (byte) 0xa8 }) returns "00A8"</p>
+     *
+     * @param bytes The bytes.
+     * @return hex string
+     */
+    public static String bytes2HexString(final byte[] bytes) {
+        return bytes2HexString(bytes, true);
+    }
+
+    /**
+     * Bytes to hex string.
+     * <p>e.g. bytes2HexString(new byte[] { 0, (byte) 0xa8 }, true) returns "00A8"</p>
+     *
+     * @param bytes       The bytes.
+     * @param isUpperCase True to use upper case, false otherwise.
+     * @return hex string
+     */
+    public static String bytes2HexString(final byte[] bytes, boolean isUpperCase) {
+        if (bytes == null) return "";
+        char[] hexDigits = isUpperCase ? HEX_DIGITS_UPPER : HEX_DIGITS_LOWER;
+        int len = bytes.length;
+        if (len <= 0) return "";
+        char[] ret = new char[len << 1];
+        for (int i = 0, j = 0; i < len; i++) {
+            ret[j++] = hexDigits[bytes[i] >> 4 & 0x0f];
+            ret[j++] = hexDigits[bytes[i] & 0x0f];
+        }
+        return new String(ret);
+    }
+
+    /**
+     * Hex string to bytes.
+     * <p>e.g. hexString2Bytes("00A8") returns { 0, (byte) 0xA8 }</p>
+     *
+     * @param hexString The hex string.
+     * @return the bytes
+     */
+    public static byte[] hexString2Bytes(String hexString) {
+        if (UtilsBridge.isSpace(hexString)) return new byte[0];
+        int len = hexString.length();
+        if (len % 2 != 0) {
+            hexString = "0" + hexString;
+            len = len + 1;
+        }
+        char[] hexBytes = hexString.toUpperCase().toCharArray();
+        byte[] ret = new byte[len >> 1];
+        for (int i = 0; i < len; i += 2) {
+            ret[i >> 1] = (byte) (hex2Dec(hexBytes[i]) << 4 | hex2Dec(hexBytes[i + 1]));
+        }
+        return ret;
+    }
+
+    private static int hex2Dec(final char hexChar) {
+        if (hexChar >= '0' && hexChar <= '9') {
+            return hexChar - '0';
+        } else if (hexChar >= 'A' && hexChar <= 'F') {
+            return hexChar - 'A' + 10;
+        } else {
+            throw new IllegalArgumentException();
+        }
+    }
+
+    /**
+     * Bytes to string.
+     */
+    public static String bytes2String(final byte[] bytes) {
+        return bytes2String(bytes, "");
+    }
+
+    /**
+     * Bytes to string.
+     */
+    public static String bytes2String(final byte[] bytes, final String charsetName) {
+        if (bytes == null) return null;
+        try {
+            return new String(bytes, getSafeCharset(charsetName));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return new String(bytes);
+        }
+    }
+
+    /**
+     * String to bytes.
+     */
+    public static byte[] string2Bytes(final String string) {
+        return string2Bytes(string, "");
+    }
+
+    /**
+     * String to bytes.
+     */
+    public static byte[] string2Bytes(final String string, final String charsetName) {
+        if (string == null) return null;
+        try {
+            return string.getBytes(getSafeCharset(charsetName));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return string.getBytes();
+        }
+    }
+
+    /**
+     * Bytes to JSONObject.
+     */
+    public static JSONObject bytes2JSONObject(final byte[] bytes) {
+        if (bytes == null) return null;
+        try {
+            return new JSONObject(new String(bytes));
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * JSONObject to bytes.
+     */
+    public static byte[] jsonObject2Bytes(final JSONObject jsonObject) {
+        if (jsonObject == null) return null;
+        return jsonObject.toString().getBytes();
+    }
+
+    /**
+     * Bytes to JSONArray.
+     */
+    public static JSONArray bytes2JSONArray(final byte[] bytes) {
+        if (bytes == null) return null;
+        try {
+            return new JSONArray(new String(bytes));
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * JSONArray to bytes.
+     */
+    public static byte[] jsonArray2Bytes(final JSONArray jsonArray) {
+        if (jsonArray == null) return null;
+        return jsonArray.toString().getBytes();
+    }
+
+    /**
+     * Bytes to Parcelable
+     */
+    public static <T> T bytes2Parcelable(final byte[] bytes,
+                                         final Parcelable.Creator<T> creator) {
+        if (bytes == null) return null;
+        Parcel parcel = Parcel.obtain();
+        parcel.unmarshall(bytes, 0, bytes.length);
+        parcel.setDataPosition(0);
+        T result = creator.createFromParcel(parcel);
+        parcel.recycle();
+        return result;
+    }
+
+    /**
+     * Parcelable to bytes.
+     */
+    public static byte[] parcelable2Bytes(final Parcelable parcelable) {
+        if (parcelable == null) return null;
+        Parcel parcel = Parcel.obtain();
+        parcelable.writeToParcel(parcel, 0);
+        byte[] bytes = parcel.marshall();
+        parcel.recycle();
+        return bytes;
+    }
+
+    /**
+     * Bytes to Serializable.
+     */
+    public static Object bytes2Object(final byte[] bytes) {
+        if (bytes == null) return null;
+        ObjectInputStream ois = null;
+        try {
+            ois = new ObjectInputStream(new ByteArrayInputStream(bytes));
+            return ois.readObject();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (ois != null) {
+                    ois.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Serializable to bytes.
+     */
+    public static byte[] serializable2Bytes(final Serializable serializable) {
+        if (serializable == null) return null;
+        ByteArrayOutputStream baos;
+        ObjectOutputStream oos = null;
+        try {
+            oos = new ObjectOutputStream(baos = new ByteArrayOutputStream());
+            oos.writeObject(serializable);
+            return baos.toByteArray();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (oos != null) {
+                    oos.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Bytes to bitmap.
+     */
+    public static Bitmap bytes2Bitmap(final byte[] bytes) {
+        return UtilsBridge.bytes2Bitmap(bytes);
+    }
+
+    /**
+     * Bitmap to bytes.
+     */
+    public static byte[] bitmap2Bytes(final Bitmap bitmap) {
+        return UtilsBridge.bitmap2Bytes(bitmap);
+    }
+
+    /**
+     * Bitmap to bytes.
+     */
+    public static byte[] bitmap2Bytes(final Bitmap bitmap, final Bitmap.CompressFormat format, int quality) {
+        return UtilsBridge.bitmap2Bytes(bitmap, format, quality);
+    }
+
+    /**
+     * Bytes to drawable.
+     */
+    public static Drawable bytes2Drawable(final byte[] bytes) {
+        return UtilsBridge.bytes2Drawable(bytes);
+    }
+
+    /**
+     * Drawable to bytes.
+     */
+    public static byte[] drawable2Bytes(final Drawable drawable) {
+        return UtilsBridge.drawable2Bytes(drawable);
+    }
+
+    /**
+     * Drawable to bytes.
+     */
+    public static byte[] drawable2Bytes(final Drawable drawable, final Bitmap.CompressFormat format, int quality) {
+        return UtilsBridge.drawable2Bytes(drawable, format, quality);
+    }
+
+    /**
+     * Size of memory in unit to size of byte.
+     *
+     * @param memorySize Size of memory.
+     * @param unit       The unit of memory size.
+     *                   <ul>
+     *                   <li>{@link MemoryConstants#BYTE}</li>
+     *                   <li>{@link MemoryConstants#KB}</li>
+     *                   <li>{@link MemoryConstants#MB}</li>
+     *                   <li>{@link MemoryConstants#GB}</li>
+     *                   </ul>
+     * @return size of byte
+     */
+    public static long memorySize2Byte(final long memorySize,
+                                       @MemoryConstants.Unit final int unit) {
+        if (memorySize < 0) return -1;
+        return memorySize * unit;
+    }
+
+    /**
+     * Size of byte to size of memory in unit.
+     *
+     * @param byteSize Size of byte.
+     * @param unit     The unit of memory size.
+     *                 <ul>
+     *                 <li>{@link MemoryConstants#BYTE}</li>
+     *                 <li>{@link MemoryConstants#KB}</li>
+     *                 <li>{@link MemoryConstants#MB}</li>
+     *                 <li>{@link MemoryConstants#GB}</li>
+     *                 </ul>
+     * @return size of memory in unit
+     */
+    public static double byte2MemorySize(final long byteSize,
+                                         @MemoryConstants.Unit final int unit) {
+        if (byteSize < 0) return -1;
+        return (double) byteSize / unit;
+    }
+
+    /**
+     * Size of byte to fit size of memory.
+     * <p>to three decimal places</p>
+     *
+     * @param byteSize Size of byte.
+     * @return fit size of memory
+     */
+    @SuppressLint("DefaultLocale")
+    public static String byte2FitMemorySize(final long byteSize) {
+        return byte2FitMemorySize(byteSize, 3);
+    }
+
+    /**
+     * Size of byte to fit size of memory.
+     * <p>to three decimal places</p>
+     *
+     * @param byteSize  Size of byte.
+     * @param precision The precision
+     * @return fit size of memory
+     */
+    @SuppressLint("DefaultLocale")
+    public static String byte2FitMemorySize(final long byteSize, int precision) {
+        if (precision < 0) {
+            throw new IllegalArgumentException("precision shouldn't be less than zero!");
+        }
+        if (byteSize < 0) {
+            throw new IllegalArgumentException("byteSize shouldn't be less than zero!");
+        } else if (byteSize < MemoryConstants.KB) {
+            return String.format("%." + precision + "fB", (double) byteSize);
+        } else if (byteSize < MemoryConstants.MB) {
+            return String.format("%." + precision + "fKB", (double) byteSize / MemoryConstants.KB);
+        } else if (byteSize < MemoryConstants.GB) {
+            return String.format("%." + precision + "fMB", (double) byteSize / MemoryConstants.MB);
+        } else {
+            return String.format("%." + precision + "fGB", (double) byteSize / MemoryConstants.GB);
+        }
+    }
+
+    /**
+     * Time span in unit to milliseconds.
+     *
+     * @param timeSpan The time span.
+     * @param unit     The unit of time span.
+     *                 <ul>
+     *                 <li>{@link TimeConstants#MSEC}</li>
+     *                 <li>{@link TimeConstants#SEC }</li>
+     *                 <li>{@link TimeConstants#MIN }</li>
+     *                 <li>{@link TimeConstants#HOUR}</li>
+     *                 <li>{@link TimeConstants#DAY }</li>
+     *                 </ul>
+     * @return milliseconds
+     */
+    public static long timeSpan2Millis(final long timeSpan, @TimeConstants.Unit final int unit) {
+        return timeSpan * unit;
+    }
+
+    /**
+     * Milliseconds to time span in unit.
+     *
+     * @param millis The milliseconds.
+     * @param unit   The unit of time span.
+     *               <ul>
+     *               <li>{@link TimeConstants#MSEC}</li>
+     *               <li>{@link TimeConstants#SEC }</li>
+     *               <li>{@link TimeConstants#MIN }</li>
+     *               <li>{@link TimeConstants#HOUR}</li>
+     *               <li>{@link TimeConstants#DAY }</li>
+     *               </ul>
+     * @return time span in unit
+     */
+    public static long millis2TimeSpan(final long millis, @TimeConstants.Unit final int unit) {
+        return millis / unit;
+    }
+
+    /**
+     * Milliseconds to fit time span.
+     *
+     * @param millis    The milliseconds.
+     *                  <p>millis &lt;= 0, return null</p>
+     * @param precision The precision of time span.
+     *                  <ul>
+     *                  <li>precision = 0, return null</li>
+     *                  <li>precision = 1, return 天</li>
+     *                  <li>precision = 2, return 天, 小时</li>
+     *                  <li>precision = 3, return 天, 小时, 分钟</li>
+     *                  <li>precision = 4, return 天, 小时, 分钟, 秒</li>
+     *                  <li>precision &gt;= 5，return 天, 小时, 分钟, 秒, 毫秒</li>
+     *                  </ul>
+     * @return fit time span
+     */
+    public static String millis2FitTimeSpan(long millis, int precision) {
+        return UtilsBridge.millis2FitTimeSpan(millis, precision);
+    }
+
+    /**
+     * Input stream to output stream.
+     */
+    public static ByteArrayOutputStream input2OutputStream(final InputStream is) {
+        if (is == null) return null;
+        try {
+            ByteArrayOutputStream os = new ByteArrayOutputStream();
+            byte[] b = new byte[BUFFER_SIZE];
+            int len;
+            while ((len = is.read(b, 0, BUFFER_SIZE)) != -1) {
+                os.write(b, 0, len);
+            }
+            return os;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                is.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Output stream to input stream.
+     */
+    public static ByteArrayInputStream output2InputStream(final OutputStream out) {
+        if (out == null) return null;
+        return new ByteArrayInputStream(((ByteArrayOutputStream) out).toByteArray());
+    }
+
+    /**
+     * Input stream to bytes.
+     */
+    public static byte[] inputStream2Bytes(final InputStream is) {
+        if (is == null) return null;
+        return input2OutputStream(is).toByteArray();
+    }
+
+    /**
+     * Bytes to input stream.
+     */
+    public static InputStream bytes2InputStream(final byte[] bytes) {
+        if (bytes == null || bytes.length <= 0) return null;
+        return new ByteArrayInputStream(bytes);
+    }
+
+    /**
+     * Output stream to bytes.
+     */
+    public static byte[] outputStream2Bytes(final OutputStream out) {
+        if (out == null) return null;
+        return ((ByteArrayOutputStream) out).toByteArray();
+    }
+
+    /**
+     * Bytes to output stream.
+     */
+    public static OutputStream bytes2OutputStream(final byte[] bytes) {
+        if (bytes == null || bytes.length <= 0) return null;
+        ByteArrayOutputStream os = null;
+        try {
+            os = new ByteArrayOutputStream();
+            os.write(bytes);
+            return os;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (os != null) {
+                    os.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Input stream to string.
+     */
+    public static String inputStream2String(final InputStream is, final String charsetName) {
+        if (is == null) return "";
+        try {
+            ByteArrayOutputStream baos = input2OutputStream(is);
+            if (baos == null) return "";
+            return baos.toString(getSafeCharset(charsetName));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * String to input stream.
+     */
+    public static InputStream string2InputStream(final String string, final String charsetName) {
+        if (string == null) return null;
+        try {
+            return new ByteArrayInputStream(string.getBytes(getSafeCharset(charsetName)));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Output stream to string.
+     */
+    public static String outputStream2String(final OutputStream out, final String charsetName) {
+        if (out == null) return "";
+        try {
+            return new String(outputStream2Bytes(out), getSafeCharset(charsetName));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * String to output stream.
+     */
+    public static OutputStream string2OutputStream(final String string, final String charsetName) {
+        if (string == null) return null;
+        try {
+            return bytes2OutputStream(string.getBytes(getSafeCharset(charsetName)));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    public static List<String> inputStream2Lines(final InputStream is) {
+        return inputStream2Lines(is, "");
+    }
+
+    public static List<String> inputStream2Lines(final InputStream is,
+                                                 final String charsetName) {
+        BufferedReader reader = null;
+        try {
+            List<String> list = new ArrayList<>();
+            reader = new BufferedReader(new InputStreamReader(is, getSafeCharset(charsetName)));
+            String line;
+            while ((line = reader.readLine()) != null) {
+                list.add(line);
+            }
+            return list;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (reader != null) {
+                    reader.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Drawable to bitmap.
+     */
+    public static Bitmap drawable2Bitmap(final Drawable drawable) {
+        return UtilsBridge.drawable2Bitmap(drawable);
+    }
+
+    /**
+     * Bitmap to drawable.
+     */
+    public static Drawable bitmap2Drawable(final Bitmap bitmap) {
+        return UtilsBridge.bitmap2Drawable(bitmap);
+    }
+
+    /**
+     * View to bitmap.
+     */
+    public static Bitmap view2Bitmap(final View view) {
+        return UtilsBridge.view2Bitmap(view);
+    }
+
+    /**
+     * Value of dp to value of px.
+     */
+    public static int dp2px(final float dpValue) {
+        return UtilsBridge.dp2px(dpValue);
+    }
+
+    /**
+     * Value of px to value of dp.
+     */
+    public static int px2dp(final float pxValue) {
+        return UtilsBridge.px2dp(pxValue);
+    }
+
+    /**
+     * Value of sp to value of px.
+     */
+    public static int sp2px(final float spValue) {
+        return UtilsBridge.sp2px(spValue);
+    }
+
+    /**
+     * Value of px to value of sp.
+     */
+    public static int px2sp(final float pxValue) {
+        return UtilsBridge.px2sp(pxValue);
+    }
+
+    private static String getSafeCharset(String charsetName) {
+        String cn = charsetName;
+        if (UtilsBridge.isSpace(charsetName) || !Charset.isSupported(charsetName)) {
+            cn = "UTF-8";
+        }
+        return cn;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java
new file mode 100644
index 0000000000..598f7fdbac
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java
@@ -0,0 +1,150 @@
+package com.blankj.utilcode.util;
+
+import androidx.annotation.NonNull;
+import java.io.File;
+import java.lang.Thread.UncaughtExceptionHandler;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/27
+ *     desc  : utils about crash
+ * </pre>
+ */
+public final class CrashUtils {
+
+    private static final String FILE_SEP = System.getProperty("file.separator");
+
+    private static final UncaughtExceptionHandler DEFAULT_UNCAUGHT_EXCEPTION_HANDLER =
+        Thread.getDefaultUncaughtExceptionHandler();
+
+    private CrashUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Initialization.
+     */
+    public static void init() {
+        init("");
+    }
+
+    /**
+     * Initialization
+     *
+     * @param crashDir The directory of saving crash information.
+     */
+    public static void init(@NonNull final File crashDir) {
+        init(crashDir.getAbsolutePath(), null);
+    }
+
+    /**
+     * Initialization
+     *
+     * @param crashDirPath The directory's path of saving crash information.
+     */
+    public static void init(final String crashDirPath) {
+        init(crashDirPath, null);
+    }
+
+    /**
+     * Initialization
+     *
+     * @param onCrashListener The crash listener.
+     */
+    public static void init(final OnCrashListener onCrashListener) {
+        init("", onCrashListener);
+    }
+
+    /**
+     * Initialization
+     *
+     * @param crashDir The directory of saving crash information.
+     * @param onCrashListener The crash listener.
+     */
+    public static void init(@NonNull final File crashDir, final OnCrashListener onCrashListener) {
+        init(crashDir.getAbsolutePath(), onCrashListener);
+    }
+
+    /**
+     * Initialization
+     *
+     * @param crashDirPath The directory's path of saving crash information.
+     * @param onCrashListener The crash listener.
+     */
+    public static void init(final String crashDirPath, final OnCrashListener onCrashListener) {
+        String dirPath;
+        if (UtilsBridge.isSpace(crashDirPath)) {
+            if (UtilsBridge.isSDCardEnableByEnvironment()
+                && Utils.getApp().getExternalFilesDir(null) != null) {
+                dirPath = Utils.getApp().getExternalFilesDir(null) + FILE_SEP + "crash" + FILE_SEP;
+            } else {
+                dirPath = Utils.getApp().getFilesDir() + FILE_SEP + "crash" + FILE_SEP;
+            }
+        } else {
+            dirPath = crashDirPath.endsWith(FILE_SEP) ? crashDirPath : crashDirPath + FILE_SEP;
+        }
+        Thread.setDefaultUncaughtExceptionHandler(
+            getUncaughtExceptionHandler(dirPath, onCrashListener));
+    }
+
+    private static UncaughtExceptionHandler getUncaughtExceptionHandler(final String dirPath,
+                                                                        final OnCrashListener onCrashListener) {
+        return new UncaughtExceptionHandler() {
+            @Override
+            public void uncaughtException(@NonNull final Thread t, @NonNull final Throwable e) {
+                final String time = new SimpleDateFormat("yyyy_MM_dd-HH_mm_ss").format(new Date());
+                CrashInfo info = new CrashInfo(time, e);
+                final String crashFile = dirPath + time + ".txt";
+                UtilsBridge.writeFileFromString(crashFile, info.toString(), true);
+
+                if (DEFAULT_UNCAUGHT_EXCEPTION_HANDLER != null) {
+                    DEFAULT_UNCAUGHT_EXCEPTION_HANDLER.uncaughtException(t, e);
+                }
+                if (onCrashListener != null) {
+                    onCrashListener.onCrash(info);
+                }
+            }
+        };
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // interface
+    ///////////////////////////////////////////////////////////////////////////
+
+    public interface OnCrashListener {
+        void onCrash(CrashInfo crashInfo);
+    }
+
+    public static final class CrashInfo {
+        private UtilsBridge.FileHead mFileHeadProvider;
+        private Throwable mThrowable;
+
+        private CrashInfo(String time, Throwable throwable) {
+            mThrowable = throwable;
+            mFileHeadProvider = new UtilsBridge.FileHead("Crash");
+            mFileHeadProvider.addFirst("Time Of Crash", time);
+        }
+
+        public final void addExtraHead(Map<String, String> extraHead) {
+            mFileHeadProvider.append(extraHead);
+        }
+
+        public final void addExtraHead(String key, String value) {
+            mFileHeadProvider.append(key, value);
+        }
+
+        public final Throwable getThrowable() {
+            return mThrowable;
+        }
+
+        @Override
+        public String toString() {
+            return mFileHeadProvider.toString() + UtilsBridge.getFullStackTrace(mThrowable);
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/DebouncingUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/DebouncingUtils.java
new file mode 100644
index 0000000000..afc49b9c6f
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/DebouncingUtils.java
@@ -0,0 +1,86 @@
+package com.blankj.utilcode.util;
+
+import android.os.SystemClock;
+import android.text.TextUtils;
+import android.view.View;
+
+import java.util.Iterator;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/09/01
+ *     desc  : utils about debouncing
+ * </pre>
+ */
+public class DebouncingUtils {
+
+    private static final int               CACHE_SIZE               = 64;
+    private static final Map<String, Long> KEY_MILLIS_MAP           = new ConcurrentHashMap<>(CACHE_SIZE);
+    private static final long              DEBOUNCING_DEFAULT_VALUE = 1000;
+
+    private DebouncingUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether the view is not in a jitter state.
+     *
+     * @param view The view.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isValid(@NonNull final View view) {
+        return isValid(view, DEBOUNCING_DEFAULT_VALUE);
+    }
+
+    /**
+     * Return whether the view is not in a jitter state.
+     *
+     * @param view     The view.
+     * @param duration The duration.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isValid(@NonNull final View view, final long duration) {
+        return isValid(String.valueOf(view.hashCode()), duration);
+    }
+
+    /**
+     * Return whether the key is not in a jitter state.
+     *
+     * @param key      The key.
+     * @param duration The duration.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isValid(@NonNull String key, final long duration) {
+        if (TextUtils.isEmpty(key)) {
+            throw new IllegalArgumentException("The key is null.");
+        }
+        if (duration < 0) {
+            throw new IllegalArgumentException("The duration is less than 0.");
+        }
+        long curTime = SystemClock.elapsedRealtime();
+        clearIfNecessary(curTime);
+        Long validTime = KEY_MILLIS_MAP.get(key);
+        if (validTime == null || curTime >= validTime) {
+            KEY_MILLIS_MAP.put(key, curTime + duration);
+            return true;
+        }
+        return false;
+    }
+
+    private static void clearIfNecessary(long curTime) {
+        if (KEY_MILLIS_MAP.size() < CACHE_SIZE) return;
+        for (Iterator<Map.Entry<String, Long>> it = KEY_MILLIS_MAP.entrySet().iterator(); it.hasNext(); ) {
+            Map.Entry<String, Long> entry = it.next();
+            Long validTime = entry.getValue();
+            if (curTime >= validTime) {
+                it.remove();
+            }
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
new file mode 100644
index 0000000000..9cd01108e1
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
@@ -0,0 +1,564 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.net.Uri;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
+import android.os.Build;
+import android.provider.Settings;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.util.Enumeration;
+import java.util.UUID;
+
+import androidx.annotation.RequiresApi;
+import androidx.annotation.RequiresPermission;
+
+import static android.Manifest.permission.ACCESS_WIFI_STATE;
+import static android.Manifest.permission.CHANGE_WIFI_STATE;
+import static android.Manifest.permission.INTERNET;
+import static android.content.Context.WIFI_SERVICE;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/8/1
+ *     desc  : utils about device
+ * </pre>
+ */
+public final class DeviceUtils {
+
+    private DeviceUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether device is rooted.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isDeviceRooted() {
+        String su = "su";
+        String[] locations = {"/system/bin/", "/system/xbin/", "/sbin/", "/system/sd/xbin/",
+                "/system/bin/failsafe/", "/data/local/xbin/", "/data/local/bin/", "/data/local/",
+                "/system/sbin/", "/usr/bin/", "/vendor/bin/"};
+        for (String location : locations) {
+            if (new File(location + su).exists()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Return whether ADB is enabled.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static boolean isAdbEnabled() {
+        return Settings.Secure.getInt(
+                Utils.getApp().getContentResolver(),
+                Settings.Global.ADB_ENABLED, 0
+        ) > 0;
+    }
+
+    /**
+     * Return the version name of device's system.
+     *
+     * @return the version name of device's system
+     */
+    public static String getSDKVersionName() {
+        return android.os.Build.VERSION.RELEASE;
+    }
+
+    /**
+     * Return version code of device's system.
+     *
+     * @return version code of device's system
+     */
+    public static int getSDKVersionCode() {
+        return android.os.Build.VERSION.SDK_INT;
+    }
+
+    /**
+     * Return the android id of device.
+     *
+     * @return the android id of device
+     */
+    @SuppressLint("HardwareIds")
+    public static String getAndroidID() {
+        String id = Settings.Secure.getString(
+                Utils.getApp().getContentResolver(),
+                Settings.Secure.ANDROID_ID
+        );
+        if ("9774d56d682e549c".equals(id)) return "";
+        return id == null ? "" : id;
+    }
+
+    /**
+     * Return the MAC address.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
+     * {@code <uses-permission android:name="android.permission.INTERNET" />},
+     * {@code <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />}</p>
+     *
+     * @return the MAC address
+     */
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, CHANGE_WIFI_STATE})
+    public static String getMacAddress() {
+        String macAddress = getMacAddress((String[]) null);
+        if (!TextUtils.isEmpty(macAddress) || getWifiEnabled()) return macAddress;
+        setWifiEnabled(true);
+        setWifiEnabled(false);
+        return getMacAddress((String[]) null);
+    }
+
+    private static boolean getWifiEnabled() {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager manager = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
+        if (manager == null) return false;
+        return manager.isWifiEnabled();
+    }
+
+    /**
+     * Enable or disable wifi.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />}</p>
+     *
+     * @param enabled True to enabled, false otherwise.
+     */
+    @RequiresPermission(CHANGE_WIFI_STATE)
+    private static void setWifiEnabled(final boolean enabled) {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager manager = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
+        if (manager == null) return;
+        if (enabled == manager.isWifiEnabled()) return;
+        manager.setWifiEnabled(enabled);
+    }
+
+    /**
+     * Return the MAC address.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
+     * {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @return the MAC address
+     */
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE})
+    public static String getMacAddress(final String... excepts) {
+        String macAddress = getMacAddressByNetworkInterface();
+        if (isAddressNotInExcepts(macAddress, excepts)) {
+            return macAddress;
+        }
+        macAddress = getMacAddressByInetAddress();
+        if (isAddressNotInExcepts(macAddress, excepts)) {
+            return macAddress;
+        }
+        macAddress = getMacAddressByWifiInfo();
+        if (isAddressNotInExcepts(macAddress, excepts)) {
+            return macAddress;
+        }
+        macAddress = getMacAddressByFile();
+        if (isAddressNotInExcepts(macAddress, excepts)) {
+            return macAddress;
+        }
+        return "";
+    }
+
+    private static boolean isAddressNotInExcepts(final String address, final String... excepts) {
+        if (TextUtils.isEmpty(address)) {
+            return false;
+        }
+        if ("02:00:00:00:00:00".equals(address)) {
+            return false;
+        }
+        if (excepts == null || excepts.length == 0) {
+            return true;
+        }
+        for (String filter : excepts) {
+            if (filter != null && filter.equals(address)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    private static String getMacAddressByWifiInfo() {
+        try {
+            final WifiManager wifi = (WifiManager) Utils.getApp()
+                    .getApplicationContext().getSystemService(WIFI_SERVICE);
+            if (wifi != null) {
+                final WifiInfo info = wifi.getConnectionInfo();
+                if (info != null) {
+                    @SuppressLint("HardwareIds")
+                    String macAddress = info.getMacAddress();
+                    if (!TextUtils.isEmpty(macAddress)) {
+                        return macAddress;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return "02:00:00:00:00:00";
+    }
+
+    private static String getMacAddressByNetworkInterface() {
+        try {
+            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
+            while (nis.hasMoreElements()) {
+                NetworkInterface ni = nis.nextElement();
+                if (ni == null || !ni.getName().equalsIgnoreCase("wlan0")) continue;
+                byte[] macBytes = ni.getHardwareAddress();
+                if (macBytes != null && macBytes.length > 0) {
+                    StringBuilder sb = new StringBuilder();
+                    for (byte b : macBytes) {
+                        sb.append(String.format("%02x:", b));
+                    }
+                    return sb.substring(0, sb.length() - 1);
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return "02:00:00:00:00:00";
+    }
+
+    private static String getMacAddressByInetAddress() {
+        try {
+            InetAddress inetAddress = getInetAddress();
+            if (inetAddress != null) {
+                NetworkInterface ni = NetworkInterface.getByInetAddress(inetAddress);
+                if (ni != null) {
+                    byte[] macBytes = ni.getHardwareAddress();
+                    if (macBytes != null && macBytes.length > 0) {
+                        StringBuilder sb = new StringBuilder();
+                        for (byte b : macBytes) {
+                            sb.append(String.format("%02x:", b));
+                        }
+                        return sb.substring(0, sb.length() - 1);
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return "02:00:00:00:00:00";
+    }
+
+    private static InetAddress getInetAddress() {
+        try {
+            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
+            while (nis.hasMoreElements()) {
+                NetworkInterface ni = nis.nextElement();
+                // To prevent phone of xiaomi return "10.0.2.15"
+                if (!ni.isUp()) continue;
+                Enumeration<InetAddress> addresses = ni.getInetAddresses();
+                while (addresses.hasMoreElements()) {
+                    InetAddress inetAddress = addresses.nextElement();
+                    if (!inetAddress.isLoopbackAddress()) {
+                        String hostAddress = inetAddress.getHostAddress();
+                        if (hostAddress.indexOf(':') < 0) return inetAddress;
+                    }
+                }
+            }
+        } catch (SocketException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    private static String getMacAddressByFile() {
+        ShellUtils.CommandResult result = UtilsBridge.execCmd("getprop wifi.interface", false);
+        if (result.result == 0) {
+            String name = result.successMsg;
+            if (name != null) {
+                result = UtilsBridge.execCmd("cat /sys/class/net/" + name + "/address", false);
+                if (result.result == 0) {
+                    String address = result.successMsg;
+                    if (address != null && address.length() > 0) {
+                        return address;
+                    }
+                }
+            }
+        }
+        return "02:00:00:00:00:00";
+    }
+
+    /**
+     * Return the manufacturer of the product/hardware.
+     * <p>e.g. Xiaomi</p>
+     *
+     * @return the manufacturer of the product/hardware
+     */
+    public static String getManufacturer() {
+        return Build.MANUFACTURER;
+    }
+
+    /**
+     * Return the model of device.
+     * <p>e.g. MI2SC</p>
+     *
+     * @return the model of device
+     */
+    public static String getModel() {
+        String model = Build.MODEL;
+        if (model != null) {
+            model = model.trim().replaceAll("\\s*", "");
+        } else {
+            model = "";
+        }
+        return model;
+    }
+
+    /**
+     * Return an ordered list of ABIs supported by this device. The most preferred ABI is the first
+     * element in the list.
+     *
+     * @return an ordered list of ABIs supported by this device
+     */
+    public static String[] getABIs() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            return Build.SUPPORTED_ABIS;
+        } else {
+            if (!TextUtils.isEmpty(Build.CPU_ABI2)) {
+                return new String[]{Build.CPU_ABI, Build.CPU_ABI2};
+            }
+            return new String[]{Build.CPU_ABI};
+        }
+    }
+
+    /**
+     * Return whether device is tablet.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isTablet() {
+        return (Resources.getSystem().getConfiguration().screenLayout
+                & Configuration.SCREENLAYOUT_SIZE_MASK)
+                >= Configuration.SCREENLAYOUT_SIZE_LARGE;
+    }
+
+    /**
+     * Return whether device is emulator.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isEmulator() {
+        boolean checkProperty = Build.FINGERPRINT.startsWith("generic")
+                || Build.FINGERPRINT.toLowerCase().contains("vbox")
+                || Build.FINGERPRINT.toLowerCase().contains("test-keys")
+                || Build.MODEL.contains("google_sdk")
+                || Build.MODEL.contains("Emulator")
+                || Build.MODEL.contains("Android SDK built for x86")
+                || Build.MANUFACTURER.contains("Genymotion")
+                || (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic"))
+                || "google_sdk".equals(Build.PRODUCT);
+        if (checkProperty) return true;
+
+        String operatorName = "";
+        TelephonyManager tm = (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
+        if (tm != null) {
+            String name = tm.getNetworkOperatorName();
+            if (name != null) {
+                operatorName = name;
+            }
+        }
+        boolean checkOperatorName = operatorName.toLowerCase().equals("android");
+        if (checkOperatorName) return true;
+
+        String url = "tel:" + "123456";
+        Intent intent = new Intent();
+        intent.setData(Uri.parse(url));
+        intent.setAction(Intent.ACTION_DIAL);
+        boolean checkDial = intent.resolveActivity(Utils.getApp().getPackageManager()) == null;
+        if (checkDial) return true;
+        if (isEmulatorByCpu()) return true;
+
+//        boolean checkDebuggerConnected = Debug.isDebuggerConnected();
+//        if (checkDebuggerConnected) return true;
+
+        return false;
+    }
+
+    /**
+     * Returns whether is emulator by check cpu info.
+     * by function of {@link #readCpuInfo}, obtain the device cpu information.
+     * then compare whether it is intel or amd (because intel and amd are generally not mobile phone cpu), to determine whether it is a real mobile phone
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    private static boolean isEmulatorByCpu() {
+        String cpuInfo = readCpuInfo();
+        return cpuInfo.contains("intel") || cpuInfo.contains("amd");
+    }
+
+    /**
+     * Return Cpu information
+     *
+     * @return Cpu info
+     */
+    private static String readCpuInfo() {
+        String result = "";
+        try {
+            String[] args = {"/system/bin/cat", "/proc/cpuinfo"};
+            ProcessBuilder cmd = new ProcessBuilder(args);
+            Process process = cmd.start();
+            StringBuilder sb = new StringBuilder();
+            String readLine;
+            BufferedReader responseReader = new BufferedReader(new InputStreamReader(process.getInputStream(), "utf-8"));
+            while ((readLine = responseReader.readLine()) != null) {
+                sb.append(readLine);
+            }
+            responseReader.close();
+            result = sb.toString().toLowerCase();
+        } catch (IOException ignored) {
+        }
+        return result;
+    }
+
+    /**
+     * Whether user has enabled development settings.
+     *
+     * @return whether user has enabled development settings.
+     */
+    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static boolean isDevelopmentSettingsEnabled() {
+        return Settings.Global.getInt(
+                Utils.getApp().getContentResolver(),
+                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0
+        ) > 0;
+    }
+
+
+    private static final    String KEY_UDID = "KEY_UDID";
+    private volatile static String udid;
+
+    /**
+     * Return the unique device id.
+     * <pre>{1}{UUID(macAddress)}</pre>
+     * <pre>{2}{UUID(androidId )}</pre>
+     * <pre>{9}{UUID(random    )}</pre>
+     *
+     * @return the unique device id
+     */
+    public static String getUniqueDeviceId() {
+        return getUniqueDeviceId("", true);
+    }
+
+    /**
+     * Return the unique device id.
+     * <pre>android 10 deprecated {prefix}{1}{UUID(macAddress)}</pre>
+     * <pre>{prefix}{2}{UUID(androidId )}</pre>
+     * <pre>{prefix}{9}{UUID(random    )}</pre>
+     *
+     * @param prefix The prefix of the unique device id.
+     * @return the unique device id
+     */
+    public static String getUniqueDeviceId(String prefix) {
+        return getUniqueDeviceId(prefix, true);
+    }
+
+    /**
+     * Return the unique device id.
+     * <pre>{1}{UUID(macAddress)}</pre>
+     * <pre>{2}{UUID(androidId )}</pre>
+     * <pre>{9}{UUID(random    )}</pre>
+     *
+     * @param useCache True to use cache, false otherwise.
+     * @return the unique device id
+     */
+    public static String getUniqueDeviceId(boolean useCache) {
+        return getUniqueDeviceId("", useCache);
+    }
+
+    /**
+     * Return the unique device id.
+     * <pre>android 10 deprecated {prefix}{1}{UUID(macAddress)}</pre>
+     * <pre>{prefix}{2}{UUID(androidId )}</pre>
+     * <pre>{prefix}{9}{UUID(random    )}</pre>
+     *
+     * @param prefix   The prefix of the unique device id.
+     * @param useCache True to use cache, false otherwise.
+     * @return the unique device id
+     */
+    public static String getUniqueDeviceId(String prefix, boolean useCache) {
+        if (!useCache) {
+            return getUniqueDeviceIdReal(prefix);
+        }
+        if (udid == null) {
+            synchronized (DeviceUtils.class) {
+                if (udid == null) {
+                    final String id = UtilsBridge.getSpUtils4Utils().getString(KEY_UDID, null);
+                    if (id != null) {
+                        udid = id;
+                        return udid;
+                    }
+                    return getUniqueDeviceIdReal(prefix);
+                }
+            }
+        }
+        return udid;
+    }
+
+    private static String getUniqueDeviceIdReal(String prefix) {
+        try {
+            final String androidId = getAndroidID();
+            if (!TextUtils.isEmpty(androidId)) {
+                return saveUdid(prefix + 2, androidId);
+            }
+
+        } catch (Exception ignore) {/**/}
+        return saveUdid(prefix + 9, "");
+    }
+
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET, CHANGE_WIFI_STATE})
+    public static boolean isSameDevice(final String uniqueDeviceId) {
+        // {prefix}{type}{32id}
+        if (TextUtils.isEmpty(uniqueDeviceId) && uniqueDeviceId.length() < 33) return false;
+        if (uniqueDeviceId.equals(udid)) return true;
+        final String cachedId = UtilsBridge.getSpUtils4Utils().getString(KEY_UDID, null);
+        if (uniqueDeviceId.equals(cachedId)) return true;
+        int st = uniqueDeviceId.length() - 33;
+        String type = uniqueDeviceId.substring(st, st + 1);
+        if (type.startsWith("1")) {
+            String macAddress = getMacAddress();
+            if (macAddress.equals("")) {
+                return false;
+            }
+            return uniqueDeviceId.substring(st + 1).equals(getUdid("", macAddress));
+        } else if (type.startsWith("2")) {
+            final String androidId = getAndroidID();
+            if (TextUtils.isEmpty(androidId)) {
+                return false;
+            }
+            return uniqueDeviceId.substring(st + 1).equals(getUdid("", androidId));
+        }
+        return false;
+    }
+
+    private static String saveUdid(String prefix, String id) {
+        udid = getUdid(prefix, id);
+        UtilsBridge.getSpUtils4Utils().put(KEY_UDID, udid);
+        return udid;
+    }
+
+    private static String getUdid(String prefix, String id) {
+        if (id.equals("")) {
+            return prefix + UUID.randomUUID().toString().replace("-", "");
+        }
+        return prefix + UUID.nameUUIDFromBytes(id.getBytes()).toString().replace("-", "");
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/DialogUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/DialogUtils.java
new file mode 100644
index 0000000000..f8a8f5737c
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/DialogUtils.java
@@ -0,0 +1,130 @@
+//package com.blankj.utilcode.util;
+//
+//import android.app.Activity;
+//import android.app.Dialog;
+//import android.content.Context;
+//import android.content.ContextWrapper;
+//import android.graphics.drawable.ColorDrawable;
+//import android.os.Build;
+//import android.support.annotation.LayoutRes;
+//import android.support.annotation.NonNull;
+//import android.util.Log;
+//import android.view.LayoutInflater;
+//import android.view.View;
+//import android.view.Window;
+//
+//import java.util.HashMap;
+//import java.util.TreeSet;
+//
+///**
+// * <pre>
+// *     author: blankj
+// *     blog  : http://blankj.com
+// *     time  : 2019/08/26
+// *     desc  : utils about dialog
+// * </pre>
+// */
+//public class DialogUtils {
+//
+//    private DialogUtils() {
+//        throw new UnsupportedOperationException("u can't instantiate me...");
+//    }
+//
+//    public static void show(final Dialog dialog) {
+//        if (dialog == null) return;
+//        Utils.runOnUiThread(new Runnable() {
+//            @Override
+//            public void run() {
+//                Activity activity = getActivityByContext(dialog.getContext());
+//                if (!isActivityAlive(activity)) return;
+//                dialog.show();
+//            }
+//        });
+//    }
+//
+//    public static void dismiss(final Dialog dialog) {
+//        if (dialog == null) return;
+//        Utils.runOnUiThread(new Runnable() {
+//            @Override
+//            public void run() {
+//                dialog.dismiss();
+//            }
+//        });
+//    }
+//
+//    public static void show(final Utils.TransActivityDelegate delegate) {
+//        Utils.TransActivity.start(null, delegate);
+//    }
+//
+//    public static Dialog create(Activity activity, @LayoutRes int layoutId) {
+//        Dialog dialog = new Dialog(activity);
+//        View dialogContent = LayoutInflater.from(activity).inflate(layoutId, null);
+//
+//        dialog.setContentView(dialogContent);
+//        Window window = dialog.getWindow();
+//        if (window != null) {
+//            window.setBackgroundDrawable(new ColorDrawable(0));
+//        }
+//
+//        return dialog;
+//    }
+//
+//    private static boolean isActivityAlive(final Activity activity) {
+//        return activity != null && !activity.isFinishing()
+//                && (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1 || !activity.isDestroyed());
+//    }
+//
+//    private static Activity getActivityByContext(Context context) {
+//        if (context instanceof Activity) return (Activity) context;
+//        while (context instanceof ContextWrapper) {
+//            if (context instanceof Activity) {
+//                return (Activity) context;
+//            }
+//            context = ((ContextWrapper) context).getBaseContext();
+//        }
+//        return null;
+//    }
+//
+//    public static final class UtilsDialog extends Dialog {
+//
+//        private int mPriority = 5;
+//
+//        public UtilsDialog(@NonNull Context context) {
+//            this(context, 0);
+//        }
+//
+//        public UtilsDialog(@NonNull Context context, int themeResId) {
+//            super(context, themeResId);
+//        }
+//
+//        @Override
+//        public void show() {
+//            Utils.runOnUiThread(new Runnable() {
+//                @Override
+//                public void run() {
+//                    Activity activity = getActivityByContext(getContext());
+//                    if (!isActivityAlive(activity)) {
+//                        Log.w("DialogUtils", "Activity is not alive.");
+//                        return;
+//                    }
+//                    UtilsDialog.super.show();
+//                }
+//            });
+//        }
+//
+//        @Override
+//        public void dismiss() {
+//            Utils.runOnUiThread(new Runnable() {
+//                @Override
+//                public void run() {
+//                    UtilsDialog.super.dismiss();
+//                }
+//            });
+//        }
+//
+//        public void show(int priority) {
+//            mPriority = priority;
+//            show();
+//        }
+//    }
+//}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/EncodeUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
similarity index 88%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
index 39f45be31b..a961be77a4 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
@@ -68,7 +68,8 @@ public static String urlDecode(final String input) {
     public static String urlDecode(final String input, final String charsetName) {
         if (input == null || input.length() == 0) return "";
         try {
-            return URLDecoder.decode(input, charsetName);
+            String safeInput = input.replaceAll("%(?![0-9a-fA-F]{2})", "%25").replaceAll("\\+", "%2B");
+            return URLDecoder.decode(safeInput, charsetName);
         } catch (UnsupportedEncodingException e) {
             throw new AssertionError(e);
         }
@@ -174,7 +175,6 @@ public static String htmlEncode(final CharSequence input) {
      * @param input The input.
      * @return the string of decode html-encode string
      */
-    @SuppressWarnings("deprecation")
     public static CharSequence htmlDecode(final String input) {
         if (input == null || input.length() == 0) return "";
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
@@ -187,16 +187,16 @@ public static CharSequence htmlDecode(final String input) {
     /**
      * Return the binary encoded string padded with one space
      *
-     * @param input
+     * @param input The input.
      * @return binary string
      */
-    public static String binEncode(final String input) {
-        StringBuilder stringBuilder = new StringBuilder();
+    public static String binaryEncode(final String input) {
+        if (input == null || input.length() == 0) return "";
+        StringBuilder sb = new StringBuilder();
         for (char i : input.toCharArray()) {
-            stringBuilder.append(Integer.toBinaryString(i));
-            stringBuilder.append(' ');
+            sb.append(Integer.toBinaryString(i)).append(" ");
         }
-        return stringBuilder.toString();
+        return sb.deleteCharAt(sb.length() - 1).toString();
     }
 
     /**
@@ -205,11 +205,12 @@ public static String binEncode(final String input) {
      * @param input binary string
      * @return UTF-8 String
      */
-    public static String binDecode(final String input) {
-        String[] splitted = input.split(" ");
+    public static String binaryDecode(final String input) {
+        if (input == null || input.length() == 0) return "";
+        String[] splits = input.split(" ");
         StringBuilder sb = new StringBuilder();
-        for (String i : splitted) {
-            sb.append(((char) Integer.parseInt(i.replace(" ", ""), 2)));
+        for (String split : splits) {
+            sb.append(((char) Integer.parseInt(split, 2)));
         }
         return sb.toString();
     }
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/EncryptUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
similarity index 83%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
index 6e545e0b56..933f8e4953 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
@@ -1,6 +1,6 @@
 package com.blankj.utilcode.util;
 
-import android.util.Base64;
+import android.os.Build;
 
 import java.io.File;
 import java.io.FileInputStream;
@@ -12,15 +12,14 @@
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidKeySpecException;
 import java.security.spec.PKCS8EncodedKeySpec;
 import java.security.spec.X509EncodedKeySpec;
 
-import javax.crypto.BadPaddingException;
 import javax.crypto.Cipher;
-import javax.crypto.IllegalBlockSizeException;
 import javax.crypto.Mac;
-import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.DESKeySpec;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 
@@ -60,7 +59,7 @@ public static String encryptMD2ToString(final String data) {
      * @return the hex string of MD2 encryption
      */
     public static String encryptMD2ToString(final byte[] data) {
-        return bytes2HexString(encryptMD2(data));
+        return UtilsBridge.bytes2HexString(encryptMD2(data));
     }
 
     /**
@@ -93,9 +92,9 @@ public static String encryptMD5ToString(final String data) {
      */
     public static String encryptMD5ToString(final String data, final String salt) {
         if (data == null && salt == null) return "";
-        if (salt == null) return bytes2HexString(encryptMD5(data.getBytes()));
-        if (data == null) return bytes2HexString(encryptMD5(salt.getBytes()));
-        return bytes2HexString(encryptMD5((data + salt).getBytes()));
+        if (salt == null) return UtilsBridge.bytes2HexString(encryptMD5(data.getBytes()));
+        if (data == null) return UtilsBridge.bytes2HexString(encryptMD5(salt.getBytes()));
+        return UtilsBridge.bytes2HexString(encryptMD5((data + salt).getBytes()));
     }
 
     /**
@@ -105,7 +104,7 @@ public static String encryptMD5ToString(final String data, final String salt) {
      * @return the hex string of MD5 encryption
      */
     public static String encryptMD5ToString(final byte[] data) {
-        return bytes2HexString(encryptMD5(data));
+        return UtilsBridge.bytes2HexString(encryptMD5(data));
     }
 
     /**
@@ -117,12 +116,12 @@ public static String encryptMD5ToString(final byte[] data) {
      */
     public static String encryptMD5ToString(final byte[] data, final byte[] salt) {
         if (data == null && salt == null) return "";
-        if (salt == null) return bytes2HexString(encryptMD5(data));
-        if (data == null) return bytes2HexString(encryptMD5(salt));
+        if (salt == null) return UtilsBridge.bytes2HexString(encryptMD5(data));
+        if (data == null) return UtilsBridge.bytes2HexString(encryptMD5(salt));
         byte[] dataSalt = new byte[data.length + salt.length];
         System.arraycopy(data, 0, dataSalt, 0, data.length);
         System.arraycopy(salt, 0, dataSalt, data.length, salt.length);
-        return bytes2HexString(encryptMD5(dataSalt));
+        return UtilsBridge.bytes2HexString(encryptMD5(dataSalt));
     }
 
     /**
@@ -142,7 +141,7 @@ public static byte[] encryptMD5(final byte[] data) {
      * @return the hex string of file's MD5 encryption
      */
     public static String encryptMD5File2String(final String filePath) {
-        File file = isSpace(filePath) ? null : new File(filePath);
+        File file = UtilsBridge.isSpace(filePath) ? null : new File(filePath);
         return encryptMD5File2String(file);
     }
 
@@ -153,7 +152,7 @@ public static String encryptMD5File2String(final String filePath) {
      * @return the bytes of file's MD5 encryption
      */
     public static byte[] encryptMD5File(final String filePath) {
-        File file = isSpace(filePath) ? null : new File(filePath);
+        File file = UtilsBridge.isSpace(filePath) ? null : new File(filePath);
         return encryptMD5File(file);
     }
 
@@ -164,7 +163,7 @@ public static byte[] encryptMD5File(final String filePath) {
      * @return the hex string of file's MD5 encryption
      */
     public static String encryptMD5File2String(final File file) {
-        return bytes2HexString(encryptMD5File(file));
+        return UtilsBridge.bytes2HexString(encryptMD5File(file));
     }
 
     /**
@@ -219,7 +218,7 @@ public static String encryptSHA1ToString(final String data) {
      * @return the hex string of SHA1 encryption
      */
     public static String encryptSHA1ToString(final byte[] data) {
-        return bytes2HexString(encryptSHA1(data));
+        return UtilsBridge.bytes2HexString(encryptSHA1(data));
     }
 
     /**
@@ -250,7 +249,7 @@ public static String encryptSHA224ToString(final String data) {
      * @return the hex string of SHA224 encryption
      */
     public static String encryptSHA224ToString(final byte[] data) {
-        return bytes2HexString(encryptSHA224(data));
+        return UtilsBridge.bytes2HexString(encryptSHA224(data));
     }
 
     /**
@@ -281,7 +280,7 @@ public static String encryptSHA256ToString(final String data) {
      * @return the hex string of SHA256 encryption
      */
     public static String encryptSHA256ToString(final byte[] data) {
-        return bytes2HexString(encryptSHA256(data));
+        return UtilsBridge.bytes2HexString(encryptSHA256(data));
     }
 
     /**
@@ -312,7 +311,7 @@ public static String encryptSHA384ToString(final String data) {
      * @return the hex string of SHA384 encryption
      */
     public static String encryptSHA384ToString(final byte[] data) {
-        return bytes2HexString(encryptSHA384(data));
+        return UtilsBridge.bytes2HexString(encryptSHA384(data));
     }
 
     /**
@@ -343,7 +342,7 @@ public static String encryptSHA512ToString(final String data) {
      * @return the hex string of SHA512 encryption
      */
     public static String encryptSHA512ToString(final byte[] data) {
-        return bytes2HexString(encryptSHA512(data));
+        return UtilsBridge.bytes2HexString(encryptSHA512(data));
     }
 
     /**
@@ -363,7 +362,7 @@ public static byte[] encryptSHA512(final byte[] data) {
      * @param algorithm The name of hash encryption.
      * @return the bytes of hash encryption
      */
-    private static byte[] hashTemplate(final byte[] data, final String algorithm) {
+    static byte[] hashTemplate(final byte[] data, final String algorithm) {
         if (data == null || data.length <= 0) return null;
         try {
             MessageDigest md = MessageDigest.getInstance(algorithm);
@@ -399,7 +398,7 @@ public static String encryptHmacMD5ToString(final String data, final String key)
      * @return the hex string of HmacMD5 encryption
      */
     public static String encryptHmacMD5ToString(final byte[] data, final byte[] key) {
-        return bytes2HexString(encryptHmacMD5(data, key));
+        return UtilsBridge.bytes2HexString(encryptHmacMD5(data, key));
     }
 
     /**
@@ -433,7 +432,7 @@ public static String encryptHmacSHA1ToString(final String data, final String key
      * @return the hex string of HmacSHA1 encryption
      */
     public static String encryptHmacSHA1ToString(final byte[] data, final byte[] key) {
-        return bytes2HexString(encryptHmacSHA1(data, key));
+        return UtilsBridge.bytes2HexString(encryptHmacSHA1(data, key));
     }
 
     /**
@@ -467,7 +466,7 @@ public static String encryptHmacSHA224ToString(final String data, final String k
      * @return the hex string of HmacSHA224 encryption
      */
     public static String encryptHmacSHA224ToString(final byte[] data, final byte[] key) {
-        return bytes2HexString(encryptHmacSHA224(data, key));
+        return UtilsBridge.bytes2HexString(encryptHmacSHA224(data, key));
     }
 
     /**
@@ -501,7 +500,7 @@ public static String encryptHmacSHA256ToString(final String data, final String k
      * @return the hex string of HmacSHA256 encryption
      */
     public static String encryptHmacSHA256ToString(final byte[] data, final byte[] key) {
-        return bytes2HexString(encryptHmacSHA256(data, key));
+        return UtilsBridge.bytes2HexString(encryptHmacSHA256(data, key));
     }
 
     /**
@@ -535,7 +534,7 @@ public static String encryptHmacSHA384ToString(final String data, final String k
      * @return the hex string of HmacSHA384 encryption
      */
     public static String encryptHmacSHA384ToString(final byte[] data, final byte[] key) {
-        return bytes2HexString(encryptHmacSHA384(data, key));
+        return UtilsBridge.bytes2HexString(encryptHmacSHA384(data, key));
     }
 
     /**
@@ -569,7 +568,7 @@ public static String encryptHmacSHA512ToString(final String data, final String k
      * @return the hex string of HmacSHA512 encryption
      */
     public static String encryptHmacSHA512ToString(final byte[] data, final byte[] key) {
-        return bytes2HexString(encryptHmacSHA512(data, key));
+        return UtilsBridge.bytes2HexString(encryptHmacSHA512(data, key));
     }
 
     /**
@@ -624,7 +623,7 @@ public static byte[] encryptDES2Base64(final byte[] data,
                                            final byte[] key,
                                            final String transformation,
                                            final byte[] iv) {
-        return base64Encode(encryptDES(data, key, transformation, iv));
+        return UtilsBridge.base64Encode(encryptDES(data, key, transformation, iv));
     }
 
     /**
@@ -641,7 +640,7 @@ public static String encryptDES2HexString(final byte[] data,
                                               final byte[] key,
                                               final String transformation,
                                               final byte[] iv) {
-        return bytes2HexString(encryptDES(data, key, transformation, iv));
+        return UtilsBridge.bytes2HexString(encryptDES(data, key, transformation, iv));
     }
 
     /**
@@ -675,7 +674,7 @@ public static byte[] decryptBase64DES(final byte[] data,
                                           final byte[] key,
                                           final String transformation,
                                           final byte[] iv) {
-        return decryptDES(base64Decode(data), key, transformation, iv);
+        return decryptDES(UtilsBridge.base64Decode(data), key, transformation, iv);
     }
 
     /**
@@ -692,7 +691,7 @@ public static byte[] decryptHexStringDES(final String data,
                                              final byte[] key,
                                              final String transformation,
                                              final byte[] iv) {
-        return decryptDES(hexString2Bytes(data), key, transformation, iv);
+        return decryptDES(UtilsBridge.hexString2Bytes(data), key, transformation, iv);
     }
 
     /**
@@ -730,7 +729,7 @@ public static byte[] encrypt3DES2Base64(final byte[] data,
                                             final byte[] key,
                                             final String transformation,
                                             final byte[] iv) {
-        return base64Encode(encrypt3DES(data, key, transformation, iv));
+        return UtilsBridge.base64Encode(encrypt3DES(data, key, transformation, iv));
     }
 
     /**
@@ -747,7 +746,7 @@ public static String encrypt3DES2HexString(final byte[] data,
                                                final byte[] key,
                                                final String transformation,
                                                final byte[] iv) {
-        return bytes2HexString(encrypt3DES(data, key, transformation, iv));
+        return UtilsBridge.bytes2HexString(encrypt3DES(data, key, transformation, iv));
     }
 
     /**
@@ -781,7 +780,7 @@ public static byte[] decryptBase64_3DES(final byte[] data,
                                             final byte[] key,
                                             final String transformation,
                                             final byte[] iv) {
-        return decrypt3DES(base64Decode(data), key, transformation, iv);
+        return decrypt3DES(UtilsBridge.base64Decode(data), key, transformation, iv);
     }
 
     /**
@@ -798,7 +797,7 @@ public static byte[] decryptHexString3DES(final String data,
                                               final byte[] key,
                                               final String transformation,
                                               final byte[] iv) {
-        return decrypt3DES(hexString2Bytes(data), key, transformation, iv);
+        return decrypt3DES(UtilsBridge.hexString2Bytes(data), key, transformation, iv);
     }
 
     /**
@@ -836,7 +835,7 @@ public static byte[] encryptAES2Base64(final byte[] data,
                                            final byte[] key,
                                            final String transformation,
                                            final byte[] iv) {
-        return base64Encode(encryptAES(data, key, transformation, iv));
+        return UtilsBridge.base64Encode(encryptAES(data, key, transformation, iv));
     }
 
     /**
@@ -853,7 +852,7 @@ public static String encryptAES2HexString(final byte[] data,
                                               final byte[] key,
                                               final String transformation,
                                               final byte[] iv) {
-        return bytes2HexString(encryptAES(data, key, transformation, iv));
+        return UtilsBridge.bytes2HexString(encryptAES(data, key, transformation, iv));
     }
 
     /**
@@ -887,7 +886,7 @@ public static byte[] decryptBase64AES(final byte[] data,
                                           final byte[] key,
                                           final String transformation,
                                           final byte[] iv) {
-        return decryptAES(base64Decode(data), key, transformation, iv);
+        return decryptAES(UtilsBridge.base64Decode(data), key, transformation, iv);
     }
 
     /**
@@ -904,7 +903,7 @@ public static byte[] decryptHexStringAES(final String data,
                                              final byte[] key,
                                              final String transformation,
                                              final byte[] iv) {
-        return decryptAES(hexString2Bytes(data), key, transformation, iv);
+        return decryptAES(UtilsBridge.hexString2Bytes(data), key, transformation, iv);
     }
 
     /**
@@ -942,13 +941,20 @@ private static byte[] symmetricTemplate(final byte[] data,
                                             final boolean isEncrypt) {
         if (data == null || data.length == 0 || key == null || key.length == 0) return null;
         try {
-            SecretKeySpec keySpec = new SecretKeySpec(key, algorithm);
+            SecretKey secretKey;
+            if ("DES".equals(algorithm)) {
+                DESKeySpec desKey = new DESKeySpec(key);
+                SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(algorithm);
+                secretKey = keyFactory.generateSecret(desKey);
+            } else {
+                secretKey = new SecretKeySpec(key, algorithm);
+            }
             Cipher cipher = Cipher.getInstance(transformation);
             if (iv == null || iv.length == 0) {
-                cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec);
+                cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, secretKey);
             } else {
                 AlgorithmParameterSpec params = new IvParameterSpec(iv);
-                cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec, params);
+                cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, secretKey, params);
             }
             return cipher.doFinal(data);
         } catch (Throwable e) {
@@ -965,96 +971,96 @@ private static byte[] symmetricTemplate(final byte[] data,
      * Return the Base64-encode bytes of RSA encryption.
      *
      * @param data           The data.
-     * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param publicKey      The public key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>RSA/CBC/PKCS1Padding</i>.
      * @return the Base64-encode bytes of RSA encryption
      */
     public static byte[] encryptRSA2Base64(final byte[] data,
-                                           final byte[] key,
-                                           final boolean isPublicKey,
+                                           final byte[] publicKey,
+                                           final int keySize,
                                            final String transformation) {
-        return base64Encode(encryptRSA(data, key, isPublicKey, transformation));
+        return UtilsBridge.base64Encode(encryptRSA(data, publicKey, keySize, transformation));
     }
 
     /**
      * Return the hex string of RSA encryption.
      *
      * @param data           The data.
-     * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param publicKey      The public key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>RSA/CBC/PKCS1Padding</i>.
      * @return the hex string of RSA encryption
      */
     public static String encryptRSA2HexString(final byte[] data,
-                                              final byte[] key,
-                                              final boolean isPublicKey,
+                                              final byte[] publicKey,
+                                              final int keySize,
                                               final String transformation) {
-        return bytes2HexString(encryptRSA(data, key, isPublicKey, transformation));
+        return UtilsBridge.bytes2HexString(encryptRSA(data, publicKey, keySize, transformation));
     }
 
     /**
      * Return the bytes of RSA encryption.
      *
      * @param data           The data.
-     * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param publicKey      The public key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>RSA/CBC/PKCS1Padding</i>.
      * @return the bytes of RSA encryption
      */
     public static byte[] encryptRSA(final byte[] data,
-                                    final byte[] key,
-                                    final boolean isPublicKey,
+                                    final byte[] publicKey,
+                                    final int keySize,
                                     final String transformation) {
-        return rsaTemplate(data, key, isPublicKey, transformation, true);
+        return rsaTemplate(data, publicKey, keySize, transformation, true);
     }
 
     /**
      * Return the bytes of RSA decryption for Base64-encode bytes.
      *
      * @param data           The data.
-     * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param privateKey     The private key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>RSA/CBC/PKCS1Padding</i>.
      * @return the bytes of RSA decryption for Base64-encode bytes
      */
     public static byte[] decryptBase64RSA(final byte[] data,
-                                          final byte[] key,
-                                          final boolean isPublicKey,
+                                          final byte[] privateKey,
+                                          final int keySize,
                                           final String transformation) {
-        return decryptRSA(base64Decode(data), key, isPublicKey, transformation);
+        return decryptRSA(UtilsBridge.base64Decode(data), privateKey, keySize, transformation);
     }
 
     /**
      * Return the bytes of RSA decryption for hex string.
      *
      * @param data           The data.
-     * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param privateKey     The private key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>RSA/CBC/PKCS1Padding</i>.
      * @return the bytes of RSA decryption for hex string
      */
     public static byte[] decryptHexStringRSA(final String data,
-                                             final byte[] key,
-                                             final boolean isPublicKey,
+                                             final byte[] privateKey,
+                                             final int keySize,
                                              final String transformation) {
-        return decryptRSA(hexString2Bytes(data), key, isPublicKey, transformation);
+        return decryptRSA(UtilsBridge.hexString2Bytes(data), privateKey, keySize, transformation);
     }
 
     /**
      * Return the bytes of RSA decryption.
      *
      * @param data           The data.
-     * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param privateKey     The private key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>RSA/CBC/PKCS1Padding</i>.
      * @return the bytes of RSA decryption
      */
     public static byte[] decryptRSA(final byte[] data,
-                                    final byte[] key,
-                                    final boolean isPublicKey,
+                                    final byte[] privateKey,
+                                    final int keySize,
                                     final String transformation) {
-        return rsaTemplate(data, key, isPublicKey, transformation, false);
+        return rsaTemplate(data, privateKey, keySize, transformation, false);
     }
 
     /**
@@ -1062,14 +1068,14 @@ public static byte[] decryptRSA(final byte[] data,
      *
      * @param data           The data.
      * @param key            The key.
-     * @param isPublicKey    True to use public key, false to use private key.
+     * @param keySize        The size of key, e.g. 1024, 2048...
      * @param transformation The name of the transformation, e.g., <i>DES/CBC/PKCS1Padding</i>.
      * @param isEncrypt      True to encrypt, false otherwise.
      * @return the bytes of RSA encryption or decryption
      */
     private static byte[] rsaTemplate(final byte[] data,
                                       final byte[] key,
-                                      final boolean isPublicKey,
+                                      final int keySize,
                                       final String transformation,
                                       final boolean isEncrypt) {
         if (data == null || data.length == 0 || key == null || key.length == 0) {
@@ -1077,18 +1083,30 @@ private static byte[] rsaTemplate(final byte[] data,
         }
         try {
             Key rsaKey;
-            if (isPublicKey) {
+            KeyFactory keyFactory;
+            if (Build.VERSION.SDK_INT < 28) {
+                keyFactory = KeyFactory.getInstance("RSA", "BC");
+            } else {
+                keyFactory = KeyFactory.getInstance("RSA");
+            }
+            if (isEncrypt) {
                 X509EncodedKeySpec keySpec = new X509EncodedKeySpec(key);
-                rsaKey = KeyFactory.getInstance("RSA").generatePublic(keySpec);
+                rsaKey = keyFactory.generatePublic(keySpec);
             } else {
                 PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(key);
-                rsaKey = KeyFactory.getInstance("RSA").generatePrivate(keySpec);
+                rsaKey = keyFactory.generatePrivate(keySpec);
             }
             if (rsaKey == null) return null;
             Cipher cipher = Cipher.getInstance(transformation);
             cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, rsaKey);
             int len = data.length;
-            int maxLen = isEncrypt ? 117 : 128;
+            int maxLen = keySize / 8;
+            if (isEncrypt) {
+                String lowerTrans = transformation.toLowerCase();
+                if (lowerTrans.endsWith("pkcs1padding")) {
+                    maxLen -= 11;
+                }
+            }
             int count = len / maxLen;
             if (count > 0) {
                 byte[] ret = new byte[0];
@@ -1109,88 +1127,58 @@ private static byte[] rsaTemplate(final byte[] data,
             } else {
                 return cipher.doFinal(data);
             }
-        } catch (NoSuchAlgorithmException e) {
-            e.printStackTrace();
-        } catch (NoSuchPaddingException e) {
-            e.printStackTrace();
-        } catch (InvalidKeyException e) {
-            e.printStackTrace();
-        } catch (BadPaddingException e) {
-            e.printStackTrace();
-        } catch (IllegalBlockSizeException e) {
-            e.printStackTrace();
-        } catch (InvalidKeySpecException e) {
+        } catch (Exception e) {
             e.printStackTrace();
         }
         return null;
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static byte[] joins(final byte[] prefix, final byte[] suffix) {
-        byte[] ret = new byte[prefix.length + suffix.length];
-        System.arraycopy(prefix, 0, ret, 0, prefix.length);
-        System.arraycopy(suffix, 0, ret, prefix.length, suffix.length);
-        return ret;
-    }
-
-    private static final char HEX_DIGITS[] =
-            {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-
-    private static String bytes2HexString(final byte[] bytes) {
-        if (bytes == null) return "";
-        int len = bytes.length;
-        if (len <= 0) return "";
-        char[] ret = new char[len << 1];
-        for (int i = 0, j = 0; i < len; i++) {
-            ret[j++] = HEX_DIGITS[bytes[i] >> 4 & 0x0f];
-            ret[j++] = HEX_DIGITS[bytes[i] & 0x0f];
+    /**
+     * Return the bytes of RC4 encryption/decryption.
+     *
+     * @param data The data.
+     * @param key  The key.
+     */
+    public static byte[] rc4(byte[] data, byte[] key) {
+        if (data == null || data.length == 0 || key == null) return null;
+        if (key.length < 1 || key.length > 256) {
+            throw new IllegalArgumentException("key must be between 1 and 256 bytes");
         }
-        return new String(ret);
-    }
-
-    private static byte[] hexString2Bytes(String hexString) {
-        if (isSpace(hexString)) return null;
-        int len = hexString.length();
-        if (len % 2 != 0) {
-            hexString = "0" + hexString;
-            len = len + 1;
+        final byte[] iS = new byte[256];
+        final byte[] iK = new byte[256];
+        int keyLen = key.length;
+        for (int i = 0; i < 256; i++) {
+            iS[i] = (byte) i;
+            iK[i] = key[i % keyLen];
         }
-        char[] hexBytes = hexString.toUpperCase().toCharArray();
-        byte[] ret = new byte[len >> 1];
-        for (int i = 0; i < len; i += 2) {
-            ret[i >> 1] = (byte) (hex2Dec(hexBytes[i]) << 4 | hex2Dec(hexBytes[i + 1]));
+        int j = 0;
+        byte tmp;
+        for (int i = 0; i < 256; i++) {
+            j = (j + iS[i] + iK[i]) & 0xFF;
+            tmp = iS[j];
+            iS[j] = iS[i];
+            iS[i] = tmp;
         }
-        return ret;
-    }
 
-    private static int hex2Dec(final char hexChar) {
-        if (hexChar >= '0' && hexChar <= '9') {
-            return hexChar - '0';
-        } else if (hexChar >= 'A' && hexChar <= 'F') {
-            return hexChar - 'A' + 10;
-        } else {
-            throw new IllegalArgumentException();
+        final byte[] ret = new byte[data.length];
+        int i = 0, k, t;
+        for (int counter = 0; counter < data.length; counter++) {
+            i = (i + 1) & 0xFF;
+            j = (j + iS[i]) & 0xFF;
+            tmp = iS[j];
+            iS[j] = iS[i];
+            iS[i] = tmp;
+            t = (iS[i] + iS[j]) & 0xFF;
+            k = iS[t];
+            ret[counter] = (byte) (data[counter] ^ k);
         }
+        return ret;
     }
 
-    private static byte[] base64Encode(final byte[] input) {
-        return Base64.encode(input, Base64.NO_WRAP);
-    }
-
-    private static byte[] base64Decode(final byte[] input) {
-        return Base64.decode(input, Base64.NO_WRAP);
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
+    private static byte[] joins(final byte[] prefix, final byte[] suffix) {
+        byte[] ret = new byte[prefix.length + suffix.length];
+        System.arraycopy(prefix, 0, ret, 0, prefix.length);
+        System.arraycopy(suffix, 0, ret, prefix.length, suffix.length);
+        return ret;
     }
 }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
new file mode 100644
index 0000000000..ca786e0b98
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
@@ -0,0 +1,951 @@
+package com.blankj.utilcode.util;
+
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/06/22
+ *     desc  : utils about file io
+ * </pre>
+ */
+public final class FileIOUtils {
+
+    private static int sBufferSize = 524288;
+
+    private FileIOUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // writeFileFromIS without progress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Write file from input stream.
+     *
+     * @param filePath The path of file.
+     * @param is       The input stream.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final String filePath, final InputStream is) {
+        return writeFileFromIS(UtilsBridge.getFileByPath(filePath), is, false, null);
+    }
+
+    /**
+     * Write file from input stream.
+     *
+     * @param filePath The path of file.
+     * @param is       The input stream.
+     * @param append   True to append, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final String filePath,
+                                          final InputStream is,
+                                          final boolean append) {
+        return writeFileFromIS(UtilsBridge.getFileByPath(filePath), is, append, null);
+    }
+
+    /**
+     * Write file from input stream.
+     *
+     * @param file The file.
+     * @param is   The input stream.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final File file, final InputStream is) {
+        return writeFileFromIS(file, is, false, null);
+    }
+
+    /**
+     * Write file from input stream.
+     *
+     * @param file   The file.
+     * @param is     The input stream.
+     * @param append True to append, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final File file,
+                                          final InputStream is,
+                                          final boolean append) {
+        return writeFileFromIS(file, is, append, null);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // writeFileFromIS with progress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Write file from input stream.
+     *
+     * @param filePath The path of file.
+     * @param is       The input stream.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final String filePath,
+                                          final InputStream is,
+                                          final OnProgressUpdateListener listener) {
+        return writeFileFromIS(UtilsBridge.getFileByPath(filePath), is, false, listener);
+    }
+
+    /**
+     * Write file from input stream.
+     *
+     * @param filePath The path of file.
+     * @param is       The input stream.
+     * @param append   True to append, false otherwise.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final String filePath,
+                                          final InputStream is,
+                                          final boolean append,
+                                          final OnProgressUpdateListener listener) {
+        return writeFileFromIS(UtilsBridge.getFileByPath(filePath), is, append, listener);
+    }
+
+    /**
+     * Write file from input stream.
+     *
+     * @param file     The file.
+     * @param is       The input stream.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final File file,
+                                          final InputStream is,
+                                          final OnProgressUpdateListener listener) {
+        return writeFileFromIS(file, is, false, listener);
+    }
+
+    /**
+     * Write file from input stream.
+     *
+     * @param file     The file.
+     * @param is       The input stream.
+     * @param append   True to append, false otherwise.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromIS(final File file,
+                                          final InputStream is,
+                                          final boolean append,
+                                          final OnProgressUpdateListener listener) {
+        if (is == null || !UtilsBridge.createOrExistsFile(file)) {
+            Log.e("FileIOUtils", "create file <" + file + "> failed.");
+            return false;
+        }
+        OutputStream os = null;
+        try {
+            os = new BufferedOutputStream(new FileOutputStream(file, append), sBufferSize);
+            if (listener == null) {
+                byte[] data = new byte[sBufferSize];
+                for (int len; (len = is.read(data)) != -1; ) {
+                    os.write(data, 0, len);
+                }
+            } else {
+                double totalSize = is.available();
+                int curSize = 0;
+                listener.onProgressUpdate(0);
+                byte[] data = new byte[sBufferSize];
+                for (int len; (len = is.read(data)) != -1; ) {
+                    os.write(data, 0, len);
+                    curSize += len;
+                    listener.onProgressUpdate(curSize / totalSize);
+                }
+            }
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        } finally {
+            try {
+                is.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            try {
+                if (os != null) {
+                    os.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // writeFileFromBytesByStream without progress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final String filePath, final byte[] bytes) {
+        return writeFileFromBytesByStream(UtilsBridge.getFileByPath(filePath), bytes, false, null);
+    }
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param append   True to append, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final String filePath,
+                                                     final byte[] bytes,
+                                                     final boolean append) {
+        return writeFileFromBytesByStream(UtilsBridge.getFileByPath(filePath), bytes, append, null);
+    }
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param file  The file.
+     * @param bytes The bytes.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final File file, final byte[] bytes) {
+        return writeFileFromBytesByStream(file, bytes, false, null);
+    }
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param file   The file.
+     * @param bytes  The bytes.
+     * @param append True to append, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final File file,
+                                                     final byte[] bytes,
+                                                     final boolean append) {
+        return writeFileFromBytesByStream(file, bytes, append, null);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // writeFileFromBytesByStream with progress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final String filePath,
+                                                     final byte[] bytes,
+                                                     final OnProgressUpdateListener listener) {
+        return writeFileFromBytesByStream(UtilsBridge.getFileByPath(filePath), bytes, false, listener);
+    }
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param append   True to append, false otherwise.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final String filePath,
+                                                     final byte[] bytes,
+                                                     final boolean append,
+                                                     final OnProgressUpdateListener listener) {
+        return writeFileFromBytesByStream(UtilsBridge.getFileByPath(filePath), bytes, append, listener);
+    }
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param file     The file.
+     * @param bytes    The bytes.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final File file,
+                                                     final byte[] bytes,
+                                                     final OnProgressUpdateListener listener) {
+        return writeFileFromBytesByStream(file, bytes, false, listener);
+    }
+
+    /**
+     * Write file from bytes by stream.
+     *
+     * @param file     The file.
+     * @param bytes    The bytes.
+     * @param append   True to append, false otherwise.
+     * @param listener The progress update listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByStream(final File file,
+                                                     final byte[] bytes,
+                                                     final boolean append,
+                                                     final OnProgressUpdateListener listener) {
+        if (bytes == null) return false;
+        return writeFileFromIS(file, new ByteArrayInputStream(bytes), append, listener);
+    }
+
+    /**
+     * Write file from bytes by channel.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param isForce  是否写入文件
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByChannel(final String filePath,
+                                                      final byte[] bytes,
+                                                      final boolean isForce) {
+        return writeFileFromBytesByChannel(UtilsBridge.getFileByPath(filePath), bytes, false, isForce);
+    }
+
+    /**
+     * Write file from bytes by channel.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param append   True to append, false otherwise.
+     * @param isForce  True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByChannel(final String filePath,
+                                                      final byte[] bytes,
+                                                      final boolean append,
+                                                      final boolean isForce) {
+        return writeFileFromBytesByChannel(UtilsBridge.getFileByPath(filePath), bytes, append, isForce);
+    }
+
+    /**
+     * Write file from bytes by channel.
+     *
+     * @param file    The file.
+     * @param bytes   The bytes.
+     * @param isForce True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByChannel(final File file,
+                                                      final byte[] bytes,
+                                                      final boolean isForce) {
+        return writeFileFromBytesByChannel(file, bytes, false, isForce);
+    }
+
+    /**
+     * Write file from bytes by channel.
+     *
+     * @param file    The file.
+     * @param bytes   The bytes.
+     * @param append  True to append, false otherwise.
+     * @param isForce True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByChannel(final File file,
+                                                      final byte[] bytes,
+                                                      final boolean append,
+                                                      final boolean isForce) {
+        if (bytes == null) {
+            Log.e("FileIOUtils", "bytes is null.");
+            return false;
+        }
+        if (!UtilsBridge.createOrExistsFile(file)) {
+            Log.e("FileIOUtils", "create file <" + file + "> failed.");
+            return false;
+        }
+        FileChannel fc = null;
+        try {
+            fc = new FileOutputStream(file, append).getChannel();
+            if (fc == null) {
+                Log.e("FileIOUtils", "fc is null.");
+                return false;
+            }
+            fc.position(fc.size());
+            fc.write(ByteBuffer.wrap(bytes));
+            if (isForce) fc.force(true);
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        } finally {
+            try {
+                if (fc != null) {
+                    fc.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Write file from bytes by map.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param isForce  True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByMap(final String filePath,
+                                                  final byte[] bytes,
+                                                  final boolean isForce) {
+        return writeFileFromBytesByMap(filePath, bytes, false, isForce);
+    }
+
+    /**
+     * Write file from bytes by map.
+     *
+     * @param filePath The path of file.
+     * @param bytes    The bytes.
+     * @param append   True to append, false otherwise.
+     * @param isForce  True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByMap(final String filePath,
+                                                  final byte[] bytes,
+                                                  final boolean append,
+                                                  final boolean isForce) {
+        return writeFileFromBytesByMap(UtilsBridge.getFileByPath(filePath), bytes, append, isForce);
+    }
+
+    /**
+     * Write file from bytes by map.
+     *
+     * @param file    The file.
+     * @param bytes   The bytes.
+     * @param isForce True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByMap(final File file,
+                                                  final byte[] bytes,
+                                                  final boolean isForce) {
+        return writeFileFromBytesByMap(file, bytes, false, isForce);
+    }
+
+    /**
+     * Write file from bytes by map.
+     *
+     * @param file    The file.
+     * @param bytes   The bytes.
+     * @param append  True to append, false otherwise.
+     * @param isForce True to force write file, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromBytesByMap(final File file,
+                                                  final byte[] bytes,
+                                                  final boolean append,
+                                                  final boolean isForce) {
+        if (bytes == null || !UtilsBridge.createOrExistsFile(file)) {
+            Log.e("FileIOUtils", "create file <" + file + "> failed.");
+            return false;
+        }
+        FileChannel fc = null;
+        try {
+            fc = new FileOutputStream(file, append).getChannel();
+            if (fc == null) {
+                Log.e("FileIOUtils", "fc is null.");
+                return false;
+            }
+            MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_WRITE, fc.size(), bytes.length);
+            mbb.put(bytes);
+            if (isForce) mbb.force();
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        } finally {
+            try {
+                if (fc != null) {
+                    fc.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Write file from string.
+     *
+     * @param filePath The path of file.
+     * @param content  The string of content.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromString(final String filePath, final String content) {
+        return writeFileFromString(UtilsBridge.getFileByPath(filePath), content, false);
+    }
+
+    /**
+     * Write file from string.
+     *
+     * @param filePath The path of file.
+     * @param content  The string of content.
+     * @param append   True to append, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromString(final String filePath,
+                                              final String content,
+                                              final boolean append) {
+        return writeFileFromString(UtilsBridge.getFileByPath(filePath), content, append);
+    }
+
+    /**
+     * Write file from string.
+     *
+     * @param file    The file.
+     * @param content The string of content.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromString(final File file, final String content) {
+        return writeFileFromString(file, content, false);
+    }
+
+    /**
+     * Write file from string.
+     *
+     * @param file    The file.
+     * @param content The string of content.
+     * @param append  True to append, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean writeFileFromString(final File file,
+                                              final String content,
+                                              final boolean append) {
+        if (file == null || content == null) return false;
+        if (!UtilsBridge.createOrExistsFile(file)) {
+            Log.e("FileIOUtils", "create file <" + file + "> failed.");
+            return false;
+        }
+        BufferedWriter bw = null;
+        try {
+            bw = new BufferedWriter(new FileWriter(file, append));
+            bw.write(content);
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        } finally {
+            try {
+                if (bw != null) {
+                    bw.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // the divide line of write and read
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Return the lines in file.
+     *
+     * @param filePath The path of file.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final String filePath) {
+        return readFile2List(UtilsBridge.getFileByPath(filePath), null);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param filePath    The path of file.
+     * @param charsetName The name of charset.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final String filePath, final String charsetName) {
+        return readFile2List(UtilsBridge.getFileByPath(filePath), charsetName);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param file The file.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final File file) {
+        return readFile2List(file, 0, 0x7FFFFFFF, null);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param file        The file.
+     * @param charsetName The name of charset.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final File file, final String charsetName) {
+        return readFile2List(file, 0, 0x7FFFFFFF, charsetName);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param filePath The path of file.
+     * @param st       The line's index of start.
+     * @param end      The line's index of end.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final String filePath, final int st, final int end) {
+        return readFile2List(UtilsBridge.getFileByPath(filePath), st, end, null);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param filePath    The path of file.
+     * @param st          The line's index of start.
+     * @param end         The line's index of end.
+     * @param charsetName The name of charset.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final String filePath,
+                                             final int st,
+                                             final int end,
+                                             final String charsetName) {
+        return readFile2List(UtilsBridge.getFileByPath(filePath), st, end, charsetName);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param file The file.
+     * @param st   The line's index of start.
+     * @param end  The line's index of end.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final File file, final int st, final int end) {
+        return readFile2List(file, st, end, null);
+    }
+
+    /**
+     * Return the lines in file.
+     *
+     * @param file        The file.
+     * @param st          The line's index of start.
+     * @param end         The line's index of end.
+     * @param charsetName The name of charset.
+     * @return the lines in file
+     */
+    public static List<String> readFile2List(final File file,
+                                             final int st,
+                                             final int end,
+                                             final String charsetName) {
+        if (!UtilsBridge.isFileExists(file)) return null;
+        if (st > end) return null;
+        BufferedReader reader = null;
+        try {
+            String line;
+            int curLine = 1;
+            List<String> list = new ArrayList<>();
+            if (UtilsBridge.isSpace(charsetName)) {
+                reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
+            } else {
+                reader = new BufferedReader(
+                        new InputStreamReader(new FileInputStream(file), charsetName)
+                );
+            }
+            while ((line = reader.readLine()) != null) {
+                if (curLine > end) break;
+                if (st <= curLine && curLine <= end) list.add(line);
+                ++curLine;
+            }
+            return list;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (reader != null) {
+                    reader.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Return the string in file.
+     *
+     * @param filePath The path of file.
+     * @return the string in file
+     */
+    public static String readFile2String(final String filePath) {
+        return readFile2String(UtilsBridge.getFileByPath(filePath), null);
+    }
+
+    /**
+     * Return the string in file.
+     *
+     * @param filePath    The path of file.
+     * @param charsetName The name of charset.
+     * @return the string in file
+     */
+    public static String readFile2String(final String filePath, final String charsetName) {
+        return readFile2String(UtilsBridge.getFileByPath(filePath), charsetName);
+    }
+
+    /**
+     * Return the string in file.
+     *
+     * @param file The file.
+     * @return the string in file
+     */
+    public static String readFile2String(final File file) {
+        return readFile2String(file, null);
+    }
+
+    /**
+     * Return the string in file.
+     *
+     * @param file        The file.
+     * @param charsetName The name of charset.
+     * @return the string in file
+     */
+    public static String readFile2String(final File file, final String charsetName) {
+        byte[] bytes = readFile2BytesByStream(file);
+        if (bytes == null) return null;
+        if (UtilsBridge.isSpace(charsetName)) {
+            return new String(bytes);
+        } else {
+            try {
+                return new String(bytes, charsetName);
+            } catch (UnsupportedEncodingException e) {
+                e.printStackTrace();
+                return "";
+            }
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // readFile2BytesByStream without progress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Return the bytes in file by stream.
+     *
+     * @param filePath The path of file.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByStream(final String filePath) {
+        return readFile2BytesByStream(UtilsBridge.getFileByPath(filePath), null);
+    }
+
+    /**
+     * Return the bytes in file by stream.
+     *
+     * @param file The file.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByStream(final File file) {
+        return readFile2BytesByStream(file, null);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // readFile2BytesByStream with progress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Return the bytes in file by stream.
+     *
+     * @param filePath The path of file.
+     * @param listener The progress update listener.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByStream(final String filePath,
+                                                final OnProgressUpdateListener listener) {
+        return readFile2BytesByStream(UtilsBridge.getFileByPath(filePath), listener);
+    }
+
+    /**
+     * Return the bytes in file by stream.
+     *
+     * @param file     The file.
+     * @param listener The progress update listener.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByStream(final File file,
+                                                final OnProgressUpdateListener listener) {
+        if (!UtilsBridge.isFileExists(file)) return null;
+        try {
+            ByteArrayOutputStream os = null;
+            InputStream is = new BufferedInputStream(new FileInputStream(file), sBufferSize);
+            try {
+                os = new ByteArrayOutputStream();
+                byte[] b = new byte[sBufferSize];
+                int len;
+                if (listener == null) {
+                    while ((len = is.read(b, 0, sBufferSize)) != -1) {
+                        os.write(b, 0, len);
+                    }
+                } else {
+                    double totalSize = is.available();
+                    int curSize = 0;
+                    listener.onProgressUpdate(0);
+                    while ((len = is.read(b, 0, sBufferSize)) != -1) {
+                        os.write(b, 0, len);
+                        curSize += len;
+                        listener.onProgressUpdate(curSize / totalSize);
+                    }
+                }
+                return os.toByteArray();
+            } catch (IOException e) {
+                e.printStackTrace();
+                return null;
+            } finally {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+                try {
+                    if (os != null) {
+                        os.close();
+                    }
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Return the bytes in file by channel.
+     *
+     * @param filePath The path of file.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByChannel(final String filePath) {
+        return readFile2BytesByChannel(UtilsBridge.getFileByPath(filePath));
+    }
+
+    /**
+     * Return the bytes in file by channel.
+     *
+     * @param file The file.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByChannel(final File file) {
+        if (!UtilsBridge.isFileExists(file)) return null;
+        FileChannel fc = null;
+        try {
+            fc = new RandomAccessFile(file, "r").getChannel();
+            if (fc == null) {
+                Log.e("FileIOUtils", "fc is null.");
+                return new byte[0];
+            }
+            ByteBuffer byteBuffer = ByteBuffer.allocate((int) fc.size());
+            while (true) {
+                if (!((fc.read(byteBuffer)) > 0)) break;
+            }
+            return byteBuffer.array();
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (fc != null) {
+                    fc.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Return the bytes in file by map.
+     *
+     * @param filePath The path of file.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByMap(final String filePath) {
+        return readFile2BytesByMap(UtilsBridge.getFileByPath(filePath));
+    }
+
+    /**
+     * Return the bytes in file by map.
+     *
+     * @param file The file.
+     * @return the bytes in file
+     */
+    public static byte[] readFile2BytesByMap(final File file) {
+        if (!UtilsBridge.isFileExists(file)) return null;
+        FileChannel fc = null;
+        try {
+            fc = new RandomAccessFile(file, "r").getChannel();
+            if (fc == null) {
+                Log.e("FileIOUtils", "fc is null.");
+                return new byte[0];
+            }
+            int size = (int) fc.size();
+            MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, size).load();
+            byte[] result = new byte[size];
+            mbb.get(result, 0, size);
+            return result;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            try {
+                if (fc != null) {
+                    fc.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Set the buffer's size.
+     * <p>Default size equals 8192 bytes.</p>
+     *
+     * @param bufferSize The buffer's size.
+     */
+    public static void setBufferSize(final int bufferSize) {
+        sBufferSize = bufferSize;
+    }
+
+    public interface OnProgressUpdateListener {
+        void onProgressUpdate(double progress);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java
new file mode 100644
index 0000000000..1acca1e050
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java
@@ -0,0 +1,1456 @@
+package com.blankj.utilcode.util;
+
+import android.content.ContentResolver;
+import android.content.Intent;
+import android.content.res.AssetFileDescriptor;
+import android.net.Uri;
+import android.os.Build;
+import android.os.StatFs;
+import android.text.TextUtils;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.security.DigestInputStream;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import javax.net.ssl.HttpsURLConnection;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/05/03
+ *     desc  : utils about file
+ * </pre>
+ */
+public final class FileUtils {
+
+    private static final String LINE_SEP = System.getProperty("line.separator");
+
+    private FileUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return the file by path.
+     *
+     * @param filePath The path of file.
+     * @return the file
+     */
+    public static File getFileByPath(final String filePath) {
+        return UtilsBridge.isSpace(filePath) ? null : new File(filePath);
+    }
+
+    /**
+     * Return whether the file exists.
+     *
+     * @param file The file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFileExists(final File file) {
+        if (file == null) return false;
+        if (file.exists()) {
+            return true;
+        }
+        return isFileExists(file.getAbsolutePath());
+    }
+
+    /**
+     * Return whether the file exists.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFileExists(final String filePath) {
+        File file = getFileByPath(filePath);
+        if (file == null) return false;
+        if (file.exists()) {
+            return true;
+        }
+        return isFileExistsApi29(filePath);
+    }
+
+    private static boolean isFileExistsApi29(String filePath) {
+        if (Build.VERSION.SDK_INT >= 29) {
+            try {
+                Uri uri = Uri.parse(filePath);
+                ContentResolver cr = Utils.getApp().getContentResolver();
+                AssetFileDescriptor afd = cr.openAssetFileDescriptor(uri, "r");
+                if (afd == null) return false;
+                try {
+                    afd.close();
+                } catch (IOException ignore) {
+                }
+            } catch (FileNotFoundException e) {
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Rename the file.
+     *
+     * @param filePath The path of file.
+     * @param newName  The new name of file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean rename(final String filePath, final String newName) {
+        return rename(getFileByPath(filePath), newName);
+    }
+
+    /**
+     * Rename the file.
+     *
+     * @param file    The file.
+     * @param newName The new name of file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean rename(final File file, final String newName) {
+        // file is null then return false
+        if (file == null) return false;
+        // file doesn't exist then return false
+        if (!file.exists()) return false;
+        // the new name is space then return false
+        if (UtilsBridge.isSpace(newName)) return false;
+        // the new name equals old name then return true
+        if (newName.equals(file.getName())) return true;
+        File newFile = new File(file.getParent() + File.separator + newName);
+        // the new name of file exists then return false
+        return !newFile.exists()
+                && file.renameTo(newFile);
+    }
+
+    /**
+     * Return whether it is a directory.
+     *
+     * @param dirPath The path of directory.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isDir(final String dirPath) {
+        return isDir(getFileByPath(dirPath));
+    }
+
+    /**
+     * Return whether it is a directory.
+     *
+     * @param file The file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isDir(final File file) {
+        return file != null && file.exists() && file.isDirectory();
+    }
+
+    /**
+     * Return whether it is a file.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFile(final String filePath) {
+        return isFile(getFileByPath(filePath));
+    }
+
+    /**
+     * Return whether it is a file.
+     *
+     * @param file The file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFile(final File file) {
+        return file != null && file.exists() && file.isFile();
+    }
+
+    /**
+     * Create a directory if it doesn't exist, otherwise do nothing.
+     *
+     * @param dirPath The path of directory.
+     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
+     */
+    public static boolean createOrExistsDir(final String dirPath) {
+        return createOrExistsDir(getFileByPath(dirPath));
+    }
+
+    /**
+     * Create a directory if it doesn't exist, otherwise do nothing.
+     *
+     * @param file The file.
+     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
+     */
+    public static boolean createOrExistsDir(final File file) {
+        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
+    }
+
+    /**
+     * Create a file if it doesn't exist, otherwise do nothing.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
+     */
+    public static boolean createOrExistsFile(final String filePath) {
+        return createOrExistsFile(getFileByPath(filePath));
+    }
+
+    /**
+     * Create a file if it doesn't exist, otherwise do nothing.
+     *
+     * @param file The file.
+     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
+     */
+    public static boolean createOrExistsFile(final File file) {
+        if (file == null) return false;
+        if (file.exists()) return file.isFile();
+        if (!createOrExistsDir(file.getParentFile())) return false;
+        try {
+            return file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Create a file if it doesn't exist, otherwise delete old file before creating.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean createFileByDeleteOldFile(final String filePath) {
+        return createFileByDeleteOldFile(getFileByPath(filePath));
+    }
+
+    /**
+     * Create a file if it doesn't exist, otherwise delete old file before creating.
+     *
+     * @param file The file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean createFileByDeleteOldFile(final File file) {
+        if (file == null) return false;
+        // file exists and unsuccessfully delete then return false
+        if (file.exists() && !file.delete()) return false;
+        if (!createOrExistsDir(file.getParentFile())) return false;
+        try {
+            return file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Copy the directory or file.
+     *
+     * @param srcPath  The path of source.
+     * @param destPath The path of destination.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean copy(final String srcPath,
+                               final String destPath) {
+        return copy(getFileByPath(srcPath), getFileByPath(destPath), null);
+    }
+
+    /**
+     * Copy the directory or file.
+     *
+     * @param srcPath  The path of source.
+     * @param destPath The path of destination.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean copy(final String srcPath,
+                               final String destPath,
+                               final OnReplaceListener listener) {
+        return copy(getFileByPath(srcPath), getFileByPath(destPath), listener);
+    }
+
+    /**
+     * Copy the directory or file.
+     *
+     * @param src  The source.
+     * @param dest The destination.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean copy(final File src,
+                               final File dest) {
+        return copy(src, dest, null);
+    }
+
+    /**
+     * Copy the directory or file.
+     *
+     * @param src      The source.
+     * @param dest     The destination.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean copy(final File src,
+                               final File dest,
+                               final OnReplaceListener listener) {
+        if (src == null) return false;
+        if (src.isDirectory()) {
+            return copyDir(src, dest, listener);
+        }
+        return copyFile(src, dest, listener);
+    }
+
+    /**
+     * Copy the directory.
+     *
+     * @param srcDir   The source directory.
+     * @param destDir  The destination directory.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    private static boolean copyDir(final File srcDir,
+                                   final File destDir,
+                                   final OnReplaceListener listener) {
+        return copyOrMoveDir(srcDir, destDir, listener, false);
+    }
+
+    /**
+     * Copy the file.
+     *
+     * @param srcFile  The source file.
+     * @param destFile The destination file.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    private static boolean copyFile(final File srcFile,
+                                    final File destFile,
+                                    final OnReplaceListener listener) {
+        return copyOrMoveFile(srcFile, destFile, listener, false);
+    }
+
+    /**
+     * Move the directory or file.
+     *
+     * @param srcPath  The path of source.
+     * @param destPath The path of destination.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean move(final String srcPath,
+                               final String destPath) {
+        return move(getFileByPath(srcPath), getFileByPath(destPath), null);
+    }
+
+    /**
+     * Move the directory or file.
+     *
+     * @param srcPath  The path of source.
+     * @param destPath The path of destination.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean move(final String srcPath,
+                               final String destPath,
+                               final OnReplaceListener listener) {
+        return move(getFileByPath(srcPath), getFileByPath(destPath), listener);
+    }
+
+    /**
+     * Move the directory or file.
+     *
+     * @param src  The source.
+     * @param dest The destination.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean move(final File src,
+                               final File dest) {
+        return move(src, dest, null);
+    }
+
+    /**
+     * Move the directory or file.
+     *
+     * @param src      The source.
+     * @param dest     The destination.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean move(final File src,
+                               final File dest,
+                               final OnReplaceListener listener) {
+        if (src == null) return false;
+        if (src.isDirectory()) {
+            return moveDir(src, dest, listener);
+        }
+        return moveFile(src, dest, listener);
+    }
+
+    /**
+     * Move the directory.
+     *
+     * @param srcDir   The source directory.
+     * @param destDir  The destination directory.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean moveDir(final File srcDir,
+                                  final File destDir,
+                                  final OnReplaceListener listener) {
+        return copyOrMoveDir(srcDir, destDir, listener, true);
+    }
+
+    /**
+     * Move the file.
+     *
+     * @param srcFile  The source file.
+     * @param destFile The destination file.
+     * @param listener The replace listener.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean moveFile(final File srcFile,
+                                   final File destFile,
+                                   final OnReplaceListener listener) {
+        return copyOrMoveFile(srcFile, destFile, listener, true);
+    }
+
+    private static boolean copyOrMoveDir(final File srcDir,
+                                         final File destDir,
+                                         final OnReplaceListener listener,
+                                         final boolean isMove) {
+        if (srcDir == null || destDir == null) return false;
+        // destDir's path locate in srcDir's path then return false
+        String srcPath = srcDir.getPath() + File.separator;
+        String destPath = destDir.getPath() + File.separator;
+        if (destPath.contains(srcPath)) return false;
+        if (!srcDir.exists() || !srcDir.isDirectory()) return false;
+        if (!createOrExistsDir(destDir)) return false;
+        File[] files = srcDir.listFiles();
+        if (files != null && files.length > 0) {
+            for (File file : files) {
+                File oneDestFile = new File(destPath + file.getName());
+                if (file.isFile()) {
+                    if (!copyOrMoveFile(file, oneDestFile, listener, isMove)) return false;
+                } else if (file.isDirectory()) {
+                    if (!copyOrMoveDir(file, oneDestFile, listener, isMove)) return false;
+                }
+            }
+        }
+        return !isMove || deleteDir(srcDir);
+    }
+
+    private static boolean copyOrMoveFile(final File srcFile,
+                                          final File destFile,
+                                          final OnReplaceListener listener,
+                                          final boolean isMove) {
+        if (srcFile == null || destFile == null) return false;
+        // srcFile equals destFile then return false
+        if (srcFile.equals(destFile)) return false;
+        // srcFile doesn't exist or isn't a file then return false
+        if (!srcFile.exists() || !srcFile.isFile()) return false;
+        if (destFile.exists()) {
+            if (listener == null || listener.onReplace(srcFile, destFile)) {// require delete the old file
+                if (!destFile.delete()) {// unsuccessfully delete then return false
+                    return false;
+                }
+            } else {
+                return true;
+            }
+        }
+        if (!createOrExistsDir(destFile.getParentFile())) return false;
+        try {
+            return UtilsBridge.writeFileFromIS(destFile.getAbsolutePath(), new FileInputStream(srcFile))
+                    && !(isMove && !deleteFile(srcFile));
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Delete the directory.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean delete(final String filePath) {
+        return delete(getFileByPath(filePath));
+    }
+
+    /**
+     * Delete the directory.
+     *
+     * @param file The file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean delete(final File file) {
+        if (file == null) return false;
+        if (file.isDirectory()) {
+            return deleteDir(file);
+        }
+        return deleteFile(file);
+    }
+
+    /**
+     * Delete the directory.
+     *
+     * @param dir The directory.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    private static boolean deleteDir(final File dir) {
+        if (dir == null) return false;
+        // dir doesn't exist then return true
+        if (!dir.exists()) return true;
+        // dir isn't a directory then return false
+        if (!dir.isDirectory()) return false;
+        File[] files = dir.listFiles();
+        if (files != null && files.length > 0) {
+            for (File file : files) {
+                if (file.isFile()) {
+                    if (!file.delete()) return false;
+                } else if (file.isDirectory()) {
+                    if (!deleteDir(file)) return false;
+                }
+            }
+        }
+        return dir.delete();
+    }
+
+    /**
+     * Delete the file.
+     *
+     * @param file The file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    private static boolean deleteFile(final File file) {
+        return file != null && (!file.exists() || file.isFile() && file.delete());
+    }
+
+    /**
+     * Delete the all in directory.
+     *
+     * @param dirPath The path of directory.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean deleteAllInDir(final String dirPath) {
+        return deleteAllInDir(getFileByPath(dirPath));
+    }
+
+    /**
+     * Delete the all in directory.
+     *
+     * @param dir The directory.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean deleteAllInDir(final File dir) {
+        return deleteFilesInDirWithFilter(dir, new FileFilter() {
+            @Override
+            public boolean accept(File pathname) {
+                return true;
+            }
+        });
+    }
+
+    /**
+     * Delete all files in directory.
+     *
+     * @param dirPath The path of directory.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean deleteFilesInDir(final String dirPath) {
+        return deleteFilesInDir(getFileByPath(dirPath));
+    }
+
+    /**
+     * Delete all files in directory.
+     *
+     * @param dir The directory.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean deleteFilesInDir(final File dir) {
+        return deleteFilesInDirWithFilter(dir, new FileFilter() {
+            @Override
+            public boolean accept(File pathname) {
+                return pathname.isFile();
+            }
+        });
+    }
+
+    /**
+     * Delete all files that satisfy the filter in directory.
+     *
+     * @param dirPath The path of directory.
+     * @param filter  The filter.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean deleteFilesInDirWithFilter(final String dirPath,
+                                                     final FileFilter filter) {
+        return deleteFilesInDirWithFilter(getFileByPath(dirPath), filter);
+    }
+
+    /**
+     * Delete all files that satisfy the filter in directory.
+     *
+     * @param dir    The directory.
+     * @param filter The filter.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean deleteFilesInDirWithFilter(final File dir, final FileFilter filter) {
+        if (dir == null || filter == null) return false;
+        // dir doesn't exist then return true
+        if (!dir.exists()) return true;
+        // dir isn't a directory then return false
+        if (!dir.isDirectory()) return false;
+        File[] files = dir.listFiles();
+        if (files != null && files.length != 0) {
+            for (File file : files) {
+                if (filter.accept(file)) {
+                    if (file.isFile()) {
+                        if (!file.delete()) return false;
+                    } else if (file.isDirectory()) {
+                        if (!deleteDir(file)) return false;
+                    }
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Return the files in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dirPath The path of directory.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final String dirPath) {
+        return listFilesInDir(dirPath, null);
+    }
+
+    /**
+     * Return the files in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dir The directory.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final File dir) {
+        return listFilesInDir(dir, null);
+    }
+
+    /**
+     * Return the files in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dirPath    The path of directory.
+     * @param comparator The comparator to determine the order of the list.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final String dirPath, Comparator<File> comparator) {
+        return listFilesInDir(getFileByPath(dirPath), false, comparator);
+    }
+
+    /**
+     * Return the files in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dir        The directory.
+     * @param comparator The comparator to determine the order of the list.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final File dir, Comparator<File> comparator) {
+        return listFilesInDir(dir, false, comparator);
+    }
+
+    /**
+     * Return the files in directory.
+     *
+     * @param dirPath     The path of directory.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final String dirPath, final boolean isRecursive) {
+        return listFilesInDir(getFileByPath(dirPath), isRecursive);
+    }
+
+    /**
+     * Return the files in directory.
+     *
+     * @param dir         The directory.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final File dir, final boolean isRecursive) {
+        return listFilesInDir(dir, isRecursive, null);
+    }
+
+    /**
+     * Return the files in directory.
+     *
+     * @param dirPath     The path of directory.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @param comparator  The comparator to determine the order of the list.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final String dirPath,
+                                            final boolean isRecursive,
+                                            final Comparator<File> comparator) {
+        return listFilesInDir(getFileByPath(dirPath), isRecursive, comparator);
+    }
+
+    /**
+     * Return the files in directory.
+     *
+     * @param dir         The directory.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @param comparator  The comparator to determine the order of the list.
+     * @return the files in directory
+     */
+    public static List<File> listFilesInDir(final File dir,
+                                            final boolean isRecursive,
+                                            final Comparator<File> comparator) {
+        return listFilesInDirWithFilter(dir, new FileFilter() {
+            @Override
+            public boolean accept(File pathname) {
+                return true;
+            }
+        }, isRecursive, comparator);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dirPath The path of directory.
+     * @param filter  The filter.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final String dirPath,
+                                                      final FileFilter filter) {
+        return listFilesInDirWithFilter(getFileByPath(dirPath), filter);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dir    The directory.
+     * @param filter The filter.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final File dir,
+                                                      final FileFilter filter) {
+        return listFilesInDirWithFilter(dir, filter, false, null);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dirPath    The path of directory.
+     * @param filter     The filter.
+     * @param comparator The comparator to determine the order of the list.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final String dirPath,
+                                                      final FileFilter filter,
+                                                      final Comparator<File> comparator) {
+        return listFilesInDirWithFilter(getFileByPath(dirPath), filter, comparator);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     * <p>Doesn't traverse subdirectories</p>
+     *
+     * @param dir        The directory.
+     * @param filter     The filter.
+     * @param comparator The comparator to determine the order of the list.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final File dir,
+                                                      final FileFilter filter,
+                                                      final Comparator<File> comparator) {
+        return listFilesInDirWithFilter(dir, filter, false, comparator);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     *
+     * @param dirPath     The path of directory.
+     * @param filter      The filter.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final String dirPath,
+                                                      final FileFilter filter,
+                                                      final boolean isRecursive) {
+        return listFilesInDirWithFilter(getFileByPath(dirPath), filter, isRecursive);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     *
+     * @param dir         The directory.
+     * @param filter      The filter.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final File dir,
+                                                      final FileFilter filter,
+                                                      final boolean isRecursive) {
+        return listFilesInDirWithFilter(dir, filter, isRecursive, null);
+    }
+
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     *
+     * @param dirPath     The path of directory.
+     * @param filter      The filter.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @param comparator  The comparator to determine the order of the list.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final String dirPath,
+                                                      final FileFilter filter,
+                                                      final boolean isRecursive,
+                                                      final Comparator<File> comparator) {
+        return listFilesInDirWithFilter(getFileByPath(dirPath), filter, isRecursive, comparator);
+    }
+
+    /**
+     * Return the files that satisfy the filter in directory.
+     *
+     * @param dir         The directory.
+     * @param filter      The filter.
+     * @param isRecursive True to traverse subdirectories, false otherwise.
+     * @param comparator  The comparator to determine the order of the list.
+     * @return the files that satisfy the filter in directory
+     */
+    public static List<File> listFilesInDirWithFilter(final File dir,
+                                                      final FileFilter filter,
+                                                      final boolean isRecursive,
+                                                      final Comparator<File> comparator) {
+        List<File> files = listFilesInDirWithFilterInner(dir, filter, isRecursive);
+        if (comparator != null) {
+            Collections.sort(files, comparator);
+        }
+        return files;
+    }
+
+    private static List<File> listFilesInDirWithFilterInner(final File dir,
+                                                            final FileFilter filter,
+                                                            final boolean isRecursive) {
+        List<File> list = new ArrayList<>();
+        if (!isDir(dir)) return list;
+        File[] files = dir.listFiles();
+        if (files != null && files.length > 0) {
+            for (File file : files) {
+                if (filter.accept(file)) {
+                    list.add(file);
+                }
+                if (isRecursive && file.isDirectory()) {
+                    list.addAll(listFilesInDirWithFilterInner(file, filter, true));
+                }
+            }
+        }
+        return list;
+    }
+
+    /**
+     * Return the time that the file was last modified.
+     *
+     * @param filePath The path of file.
+     * @return the time that the file was last modified
+     */
+
+    public static long getFileLastModified(final String filePath) {
+        return getFileLastModified(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the time that the file was last modified.
+     *
+     * @param file The file.
+     * @return the time that the file was last modified
+     */
+    public static long getFileLastModified(final File file) {
+        if (file == null) return -1;
+        return file.lastModified();
+    }
+
+    /**
+     * Return the charset of file simply.
+     *
+     * @param filePath The path of file.
+     * @return the charset of file simply
+     */
+    public static String getFileCharsetSimple(final String filePath) {
+        return getFileCharsetSimple(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the charset of file simply.
+     *
+     * @param file The file.
+     * @return the charset of file simply
+     */
+    public static String getFileCharsetSimple(final File file) {
+        if (file == null) return "";
+        if (isUtf8(file)) return "UTF-8";
+        int p = 0;
+        InputStream is = null;
+        try {
+            is = new BufferedInputStream(new FileInputStream(file));
+            p = (is.read() << 8) + is.read();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (is != null) {
+                    is.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        switch (p) {
+            case 0xfffe:
+                return "Unicode";
+            case 0xfeff:
+                return "UTF-16BE";
+            default:
+                return "GBK";
+        }
+    }
+
+    /**
+     * Return whether the charset of file is utf8.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isUtf8(final String filePath) {
+        return isUtf8(getFileByPath(filePath));
+    }
+
+    /**
+     * Return whether the charset of file is utf8.
+     *
+     * @param file The file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isUtf8(final File file) {
+        if (file == null) return false;
+        InputStream is = null;
+        try {
+            byte[] bytes = new byte[24];
+            is = new BufferedInputStream(new FileInputStream(file));
+            int read = is.read(bytes);
+            if (read != -1) {
+                byte[] readArr = new byte[read];
+                System.arraycopy(bytes, 0, readArr, 0, read);
+                return isUtf8(readArr) == 100;
+            } else {
+                return false;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (is != null) {
+                    is.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return false;
+    }
+
+    /**
+     * UTF-8编码方式
+     * ----------------------------------------------
+     * 0xxxxxxx
+     * 110xxxxx 10xxxxxx
+     * 1110xxxx 10xxxxxx 10xxxxxx
+     * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+     */
+    private static int isUtf8(byte[] raw) {
+        int i, len;
+        int utf8 = 0, ascii = 0;
+        if (raw.length > 3) {
+            if ((raw[0] == (byte) 0xEF) && (raw[1] == (byte) 0xBB) && (raw[2] == (byte) 0xBF)) {
+                return 100;
+            }
+        }
+        len = raw.length;
+        int child = 0;
+        for (i = 0; i < len; ) {
+            // UTF-8 byte shouldn't be FF and FE
+            if ((raw[i] & (byte) 0xFF) == (byte) 0xFF || (raw[i] & (byte) 0xFE) == (byte) 0xFE) {
+                return 0;
+            }
+            if (child == 0) {
+                // ASCII format is 0x0*******
+                if ((raw[i] & (byte) 0x7F) == raw[i] && raw[i] != 0) {
+                    ascii++;
+                } else if ((raw[i] & (byte) 0xC0) == (byte) 0xC0) {
+                    // 0x11****** maybe is UTF-8
+                    for (int bit = 0; bit < 8; bit++) {
+                        if ((((byte) (0x80 >> bit)) & raw[i]) == ((byte) (0x80 >> bit))) {
+                            child = bit;
+                        } else {
+                            break;
+                        }
+                    }
+                    utf8++;
+                }
+                i++;
+            } else {
+                child = (raw.length - i > child) ? child : (raw.length - i);
+                boolean currentNotUtf8 = false;
+                for (int children = 0; children < child; children++) {
+                    // format must is 0x10******
+                    if ((raw[i + children] & ((byte) 0x80)) != ((byte) 0x80)) {
+                        if ((raw[i + children] & (byte) 0x7F) == raw[i + children] && raw[i] != 0) {
+                            // ASCII format is 0x0*******
+                            ascii++;
+                        }
+                        currentNotUtf8 = true;
+                    }
+                }
+                if (currentNotUtf8) {
+                    utf8--;
+                    i++;
+                } else {
+                    utf8 += child;
+                    i += child;
+                }
+                child = 0;
+            }
+        }
+        // UTF-8 contains ASCII
+        if (ascii == len) {
+            return 100;
+        }
+        return (int) (100 * ((float) (utf8 + ascii) / (float) len));
+    }
+
+    /**
+     * Return the number of lines of file.
+     *
+     * @param filePath The path of file.
+     * @return the number of lines of file
+     */
+    public static int getFileLines(final String filePath) {
+        return getFileLines(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the number of lines of file.
+     *
+     * @param file The file.
+     * @return the number of lines of file
+     */
+    public static int getFileLines(final File file) {
+        int count = 1;
+        InputStream is = null;
+        try {
+            is = new BufferedInputStream(new FileInputStream(file));
+            byte[] buffer = new byte[1024];
+            int readChars;
+            if (LINE_SEP.endsWith("\n")) {
+                while ((readChars = is.read(buffer, 0, 1024)) != -1) {
+                    for (int i = 0; i < readChars; ++i) {
+                        if (buffer[i] == '\n') ++count;
+                    }
+                }
+            } else {
+                while ((readChars = is.read(buffer, 0, 1024)) != -1) {
+                    for (int i = 0; i < readChars; ++i) {
+                        if (buffer[i] == '\r') ++count;
+                    }
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (is != null) {
+                    is.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return count;
+    }
+
+    /**
+     * Return the size.
+     *
+     * @param filePath The path of file.
+     * @return the size
+     */
+    public static String getSize(final String filePath) {
+        return getSize(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the size.
+     *
+     * @param file The directory.
+     * @return the size
+     */
+    public static String getSize(final File file) {
+        if (file == null) return "";
+        if (file.isDirectory()) {
+            return getDirSize(file);
+        }
+        return getFileSize(file);
+    }
+
+    /**
+     * Return the size of directory.
+     *
+     * @param dir The directory.
+     * @return the size of directory
+     */
+    private static String getDirSize(final File dir) {
+        long len = getDirLength(dir);
+        return len == -1 ? "" : UtilsBridge.byte2FitMemorySize(len);
+    }
+
+    /**
+     * Return the size of file.
+     *
+     * @param file The file.
+     * @return the length of file
+     */
+    private static String getFileSize(final File file) {
+        long len = getFileLength(file);
+        return len == -1 ? "" : UtilsBridge.byte2FitMemorySize(len);
+    }
+
+    /**
+     * Return the length.
+     *
+     * @param filePath The path of file.
+     * @return the length
+     */
+    public static long getLength(final String filePath) {
+        return getLength(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the length.
+     *
+     * @param file The file.
+     * @return the length
+     */
+    public static long getLength(final File file) {
+        if (file == null) return 0;
+        if (file.isDirectory()) {
+            return getDirLength(file);
+        }
+        return getFileLength(file);
+    }
+
+    /**
+     * Return the length of directory.
+     *
+     * @param dir The directory.
+     * @return the length of directory
+     */
+    private static long getDirLength(final File dir) {
+        if (!isDir(dir)) return 0;
+        long len = 0;
+        File[] files = dir.listFiles();
+        if (files != null && files.length > 0) {
+            for (File file : files) {
+                if (file.isDirectory()) {
+                    len += getDirLength(file);
+                } else {
+                    len += file.length();
+                }
+            }
+        }
+        return len;
+    }
+
+    /**
+     * Return the length of file.
+     *
+     * @param filePath The path of file.
+     * @return the length of file
+     */
+    public static long getFileLength(final String filePath) {
+        boolean isURL = filePath.matches("[a-zA-z]+://[^\\s]*");
+        if (isURL) {
+            try {
+                HttpsURLConnection conn = (HttpsURLConnection) new URL(filePath).openConnection();
+                conn.setRequestProperty("Accept-Encoding", "identity");
+                conn.connect();
+                if (conn.getResponseCode() == 200) {
+                    return conn.getContentLength();
+                }
+                return -1;
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return getFileLength(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the length of file.
+     *
+     * @param file The file.
+     * @return the length of file
+     */
+    private static long getFileLength(final File file) {
+        if (!isFile(file)) return -1;
+        return file.length();
+    }
+
+    /**
+     * Return the MD5 of file.
+     *
+     * @param filePath The path of file.
+     * @return the md5 of file
+     */
+    public static String getFileMD5ToString(final String filePath) {
+        File file = UtilsBridge.isSpace(filePath) ? null : new File(filePath);
+        return getFileMD5ToString(file);
+    }
+
+    /**
+     * Return the MD5 of file.
+     *
+     * @param file The file.
+     * @return the md5 of file
+     */
+    public static String getFileMD5ToString(final File file) {
+        return UtilsBridge.bytes2HexString(getFileMD5(file));
+    }
+
+    /**
+     * Return the MD5 of file.
+     *
+     * @param filePath The path of file.
+     * @return the md5 of file
+     */
+    public static byte[] getFileMD5(final String filePath) {
+        return getFileMD5(getFileByPath(filePath));
+    }
+
+    /**
+     * Return the MD5 of file.
+     *
+     * @param file The file.
+     * @return the md5 of file
+     */
+    public static byte[] getFileMD5(final File file) {
+        if (file == null) return null;
+        DigestInputStream dis = null;
+        try {
+            FileInputStream fis = new FileInputStream(file);
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            dis = new DigestInputStream(fis, md);
+            byte[] buffer = new byte[1024 * 256];
+            while (true) {
+                if (!(dis.read(buffer) > 0)) break;
+            }
+            md = dis.getMessageDigest();
+            return md.digest();
+        } catch (NoSuchAlgorithmException | IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (dis != null) {
+                    dis.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Return the file's path of directory.
+     *
+     * @param file The file.
+     * @return the file's path of directory
+     */
+    public static String getDirName(final File file) {
+        if (file == null) return "";
+        return getDirName(file.getAbsolutePath());
+    }
+
+    /**
+     * Return the file's path of directory.
+     *
+     * @param filePath The path of file.
+     * @return the file's path of directory
+     */
+    public static String getDirName(final String filePath) {
+        if (UtilsBridge.isSpace(filePath)) return "";
+        int lastSep = filePath.lastIndexOf(File.separator);
+        return lastSep == -1 ? "" : filePath.substring(0, lastSep + 1);
+    }
+
+    /**
+     * Return the name of file.
+     *
+     * @param file The file.
+     * @return the name of file
+     */
+    public static String getFileName(final File file) {
+        if (file == null) return "";
+        return getFileName(file.getAbsolutePath());
+    }
+
+    /**
+     * Return the name of file.
+     *
+     * @param filePath The path of file.
+     * @return the name of file
+     */
+    public static String getFileName(final String filePath) {
+        if (UtilsBridge.isSpace(filePath)) return "";
+        int lastSep = filePath.lastIndexOf(File.separator);
+        return lastSep == -1 ? filePath : filePath.substring(lastSep + 1);
+    }
+
+    /**
+     * Return the name of file without extension.
+     *
+     * @param file The file.
+     * @return the name of file without extension
+     */
+    public static String getFileNameNoExtension(final File file) {
+        if (file == null) return "";
+        return getFileNameNoExtension(file.getPath());
+    }
+
+    /**
+     * Return the name of file without extension.
+     *
+     * @param filePath The path of file.
+     * @return the name of file without extension
+     */
+    public static String getFileNameNoExtension(final String filePath) {
+        if (UtilsBridge.isSpace(filePath)) return "";
+        int lastPoi = filePath.lastIndexOf('.');
+        int lastSep = filePath.lastIndexOf(File.separator);
+        if (lastSep == -1) {
+            return (lastPoi == -1 ? filePath : filePath.substring(0, lastPoi));
+        }
+        if (lastPoi == -1 || lastSep > lastPoi) {
+            return filePath.substring(lastSep + 1);
+        }
+        return filePath.substring(lastSep + 1, lastPoi);
+    }
+
+    /**
+     * Return the extension of file.
+     *
+     * @param file The file.
+     * @return the extension of file
+     */
+    public static String getFileExtension(final File file) {
+        if (file == null) return "";
+        return getFileExtension(file.getPath());
+    }
+
+    /**
+     * Return the extension of file.
+     *
+     * @param filePath The path of file.
+     * @return the extension of file
+     */
+    public static String getFileExtension(final String filePath) {
+        if (UtilsBridge.isSpace(filePath)) return "";
+        int lastPoi = filePath.lastIndexOf('.');
+        int lastSep = filePath.lastIndexOf(File.separator);
+        if (lastPoi == -1 || lastSep >= lastPoi) return "";
+        return filePath.substring(lastPoi + 1);
+    }
+
+    /**
+     * Notify system to scan the file.
+     *
+     * @param filePath The path of file.
+     */
+    public static void notifySystemToScan(final String filePath) {
+        notifySystemToScan(getFileByPath(filePath));
+    }
+
+    /**
+     * Notify system to scan the file.
+     *
+     * @param file The file.
+     */
+    public static void notifySystemToScan(final File file) {
+        if (file == null || !file.exists()) return;
+        Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
+        intent.setData(Uri.parse("file://" + file.getAbsolutePath()));
+        Utils.getApp().sendBroadcast(intent);
+    }
+
+    /**
+     * Return the total size of file system.
+     *
+     * @param anyPathInFs Any path in file system.
+     * @return the total size of file system
+     */
+    public static long getFsTotalSize(String anyPathInFs) {
+        if (TextUtils.isEmpty(anyPathInFs)) return 0;
+        StatFs statFs = new StatFs(anyPathInFs);
+        long blockSize;
+        long totalSize;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            blockSize = statFs.getBlockSizeLong();
+            totalSize = statFs.getBlockCountLong();
+        } else {
+            blockSize = statFs.getBlockSize();
+            totalSize = statFs.getBlockCount();
+        }
+        return blockSize * totalSize;
+    }
+
+    /**
+     * Return the available size of file system.
+     *
+     * @param anyPathInFs Any path in file system.
+     * @return the available size of file system
+     */
+    public static long getFsAvailableSize(final String anyPathInFs) {
+        if (TextUtils.isEmpty(anyPathInFs)) return 0;
+        StatFs statFs = new StatFs(anyPathInFs);
+        long blockSize;
+        long availableSize;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            blockSize = statFs.getBlockSizeLong();
+            availableSize = statFs.getAvailableBlocksLong();
+        } else {
+            blockSize = statFs.getBlockSize();
+            availableSize = statFs.getAvailableBlocks();
+        }
+        return blockSize * availableSize;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // interface
+    ///////////////////////////////////////////////////////////////////////////
+
+    public interface OnReplaceListener {
+        boolean onReplace(File srcFile, File destFile);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/FlashlightUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FlashlightUtils.java
new file mode 100644
index 0000000000..e74996d4e4
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FlashlightUtils.java
@@ -0,0 +1,105 @@
+package com.blankj.utilcode.util;
+
+import android.content.pm.PackageManager;
+import android.graphics.SurfaceTexture;
+import android.hardware.Camera;
+import android.util.Log;
+
+import java.io.IOException;
+
+import static android.hardware.Camera.Parameters.FLASH_MODE_OFF;
+import static android.hardware.Camera.Parameters.FLASH_MODE_TORCH;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/04/27
+ *     desc  : utils about flashlight
+ * </pre>
+ */
+public final class FlashlightUtils {
+
+    private static Camera         mCamera;
+    private static SurfaceTexture mSurfaceTexture;
+
+    private FlashlightUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether the device supports flashlight.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFlashlightEnable() {
+        return Utils.getApp()
+                .getPackageManager()
+                .hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
+    }
+
+    /**
+     * Return whether the flashlight is working.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFlashlightOn() {
+        if (!init()) return false;
+        Camera.Parameters parameters = mCamera.getParameters();
+        return FLASH_MODE_TORCH.equals(parameters.getFlashMode());
+    }
+
+    /**
+     * Turn on or turn off the flashlight.
+     *
+     * @param isOn True to turn on the flashlight, false otherwise.
+     */
+    public static void setFlashlightStatus(final boolean isOn) {
+        if (!init()) return;
+        final Camera.Parameters parameters = mCamera.getParameters();
+        if (isOn) {
+            if (!FLASH_MODE_TORCH.equals(parameters.getFlashMode())) {
+                try {
+                    mCamera.setPreviewTexture(mSurfaceTexture);
+                    mCamera.startPreview();
+                    parameters.setFlashMode(FLASH_MODE_TORCH);
+                    mCamera.setParameters(parameters);
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        } else {
+            if (!FLASH_MODE_OFF.equals(parameters.getFlashMode())) {
+                parameters.setFlashMode(FLASH_MODE_OFF);
+                mCamera.setParameters(parameters);
+            }
+        }
+    }
+
+    /**
+     * Destroy the flashlight.
+     */
+    public static void destroy() {
+        if (mCamera == null) return;
+        mCamera.release();
+        mSurfaceTexture = null;
+        mCamera = null;
+    }
+
+    private static boolean init() {
+        if (mCamera == null) {
+            try {
+                mCamera = Camera.open(0);
+                mSurfaceTexture = new SurfaceTexture(0);
+            } catch (Throwable t) {
+                Log.e("FlashlightUtils", "init failed: ", t);
+                return false;
+            }
+        }
+        if (mCamera == null) {
+            Log.e("FlashlightUtils", "init failed.");
+            return false;
+        }
+        return true;
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/FragmentUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
similarity index 94%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
index c8888f6b47..31bbac1217 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
@@ -3,23 +3,25 @@
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.annotation.AnimRes;
-import android.support.annotation.AnimatorRes;
-import android.support.annotation.ColorInt;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.IdRes;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentTransaction;
 import android.util.Log;
 import android.view.View;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
+import androidx.annotation.AnimRes;
+import androidx.annotation.AnimatorRes;
+import androidx.annotation.ColorInt;
+import androidx.annotation.DrawableRes;
+import androidx.annotation.IdRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
+
 /**
  * <pre>
  *     author: Blankj
@@ -234,7 +236,7 @@ public static void add(@NonNull final FragmentManager fm,
                            @NonNull final List<Fragment> adds,
                            @IdRes final int containerId,
                            final int showIndex) {
-        add(fm, adds.toArray(new Fragment[adds.size()]), containerId, null, showIndex);
+        add(fm, adds.toArray(new Fragment[0]), containerId, null, showIndex);
     }
 
     /**
@@ -301,7 +303,7 @@ public static void add(@NonNull final FragmentManager fm,
                            final boolean isHide,
                            final boolean isAddStack) {
         putArgs(add, new Args(containerId, tag, isHide, isAddStack));
-        operateNoAnim(fm, TYPE_ADD_FRAGMENT, null, add);
+        operateNoAnim(TYPE_ADD_FRAGMENT, fm, null, add);
     }
 
     /**
@@ -462,9 +464,9 @@ public static void add(@NonNull final FragmentManager fm,
     public static void add(@NonNull final FragmentManager fm,
                            @NonNull final List<Fragment> adds,
                            @IdRes final int containerId,
-                           final String tags[],
+                           final String[] tags,
                            final int showIndex) {
-        add(fm, adds.toArray(new Fragment[adds.size()]), containerId, tags, showIndex);
+        add(fm, adds.toArray(new Fragment[0]), containerId, tags, showIndex);
     }
 
     /**
@@ -478,7 +480,7 @@ public static void add(@NonNull final FragmentManager fm,
     public static void add(@NonNull final FragmentManager fm,
                            @NonNull final Fragment[] adds,
                            @IdRes final int containerId,
-                           final String tags[],
+                           final String[] tags,
                            final int showIndex) {
         if (tags == null) {
             for (int i = 0, len = adds.length; i < len; ++i) {
@@ -489,7 +491,7 @@ public static void add(@NonNull final FragmentManager fm,
                 putArgs(adds[i], new Args(containerId, tags[i], showIndex != i, false));
             }
         }
-        operateNoAnim(fm, TYPE_ADD_FRAGMENT, null, adds);
+        operateNoAnim(TYPE_ADD_FRAGMENT, fm, null, adds);
     }
 
     /**
@@ -499,7 +501,7 @@ public static void add(@NonNull final FragmentManager fm,
      */
     public static void show(@NonNull final Fragment show) {
         putArgs(show, false);
-        operateNoAnim(show.getFragmentManager(), TYPE_SHOW_FRAGMENT, null, show);
+        operateNoAnim(TYPE_SHOW_FRAGMENT, show.getFragmentManager(), null, show);
     }
 
     /**
@@ -512,11 +514,7 @@ public static void show(@NonNull final FragmentManager fm) {
         for (Fragment show : fragments) {
             putArgs(show, false);
         }
-        operateNoAnim(fm,
-                TYPE_SHOW_FRAGMENT,
-                null,
-                fragments.toArray(new Fragment[fragments.size()])
-        );
+        operateNoAnim(TYPE_SHOW_FRAGMENT, fm, null, fragments.toArray(new Fragment[0]));
     }
 
     /**
@@ -526,7 +524,7 @@ public static void show(@NonNull final FragmentManager fm) {
      */
     public static void hide(@NonNull final Fragment hide) {
         putArgs(hide, true);
-        operateNoAnim(hide.getFragmentManager(), TYPE_HIDE_FRAGMENT, null, hide);
+        operateNoAnim(TYPE_HIDE_FRAGMENT, hide.getFragmentManager(), null, hide);
     }
 
     /**
@@ -539,21 +537,28 @@ public static void hide(@NonNull final FragmentManager fm) {
         for (Fragment hide : fragments) {
             putArgs(hide, true);
         }
-        operateNoAnim(fm,
-                TYPE_HIDE_FRAGMENT,
-                null,
-                fragments.toArray(new Fragment[fragments.size()])
-        );
+        operateNoAnim(TYPE_HIDE_FRAGMENT, fm, null, fragments.toArray(new Fragment[0]));
+    }
+
+    /**
+     * Show fragment then hide other fragment.
+     *
+     * @param show The fragment will be show.
+     * @param hide The fragment will be hide.
+     */
+    public static void showHide(@NonNull final Fragment show,
+                                @NonNull final Fragment hide) {
+        showHide(show, Collections.singletonList(hide));
     }
 
     /**
      * Show fragment then hide other fragment.
      *
      * @param showIndex The index of fragment will be shown.
-     * @param fragments The fragments will be hide.
+     * @param fragments The fragment will be hide.
      */
-    public static void showHide(final int showIndex, @NonNull final List<Fragment> fragments) {
-        showHide(fragments.get(showIndex), fragments);
+    public static void showHide(final int showIndex, @NonNull final Fragment... fragments) {
+        showHide(fragments[showIndex], fragments);
     }
 
     /**
@@ -562,22 +567,18 @@ public static void showHide(final int showIndex, @NonNull final List<Fragment> f
      * @param show The fragment will be show.
      * @param hide The fragment will be hide.
      */
-    public static void showHide(@NonNull final Fragment show, @NonNull final List<Fragment> hide) {
-        for (Fragment fragment : hide) {
-            putArgs(fragment, fragment != show);
-        }
-        operateNoAnim(show.getFragmentManager(), TYPE_SHOW_HIDE_FRAGMENT, show,
-                hide.toArray(new Fragment[hide.size()]));
+    public static void showHide(@NonNull final Fragment show, @NonNull final Fragment... hide) {
+        showHide(show, Arrays.asList(hide));
     }
 
     /**
      * Show fragment then hide other fragment.
      *
      * @param showIndex The index of fragment will be shown.
-     * @param fragments The fragment will be hide.
+     * @param fragments The fragments will be hide.
      */
-    public static void showHide(final int showIndex, @NonNull final Fragment... fragments) {
-        showHide(fragments[showIndex], fragments);
+    public static void showHide(final int showIndex, @NonNull final List<Fragment> fragments) {
+        showHide(fragments.get(showIndex), fragments);
     }
 
     /**
@@ -586,13 +587,14 @@ public static void showHide(final int showIndex, @NonNull final Fragment... frag
      * @param show The fragment will be show.
      * @param hide The fragment will be hide.
      */
-    public static void showHide(@NonNull final Fragment show, @NonNull final Fragment... hide) {
+    public static void showHide(@NonNull final Fragment show, @NonNull final List<Fragment> hide) {
         for (Fragment fragment : hide) {
             putArgs(fragment, fragment != show);
         }
-        operateNoAnim(show.getFragmentManager(), TYPE_SHOW_HIDE_FRAGMENT, show, hide);
+        operateNoAnim(TYPE_SHOW_HIDE_FRAGMENT, show.getFragmentManager(), show, hide.toArray(new Fragment[0]));
     }
 
+
     /**
      * Show fragment then hide other fragment.
      *
@@ -600,10 +602,47 @@ public static void showHide(@NonNull final Fragment show, @NonNull final Fragmen
      * @param hide The fragment will be hide.
      */
     public static void showHide(@NonNull final Fragment show,
-                                @NonNull final Fragment hide) {
-        putArgs(show, false);
-        putArgs(hide, true);
-        operateNoAnim(show.getFragmentManager(), TYPE_SHOW_HIDE_FRAGMENT, show, hide);
+                                @NonNull final Fragment hide, @AnimatorRes @AnimRes final int enterAnim,
+                                @AnimatorRes @AnimRes final int exitAnim,
+                                @AnimatorRes @AnimRes final int popEnterAnim,
+                                @AnimatorRes @AnimRes final int popExitAnim) {
+        showHide(show, Collections.singletonList(hide), enterAnim, exitAnim, popEnterAnim, popExitAnim);
+    }
+
+    /**
+     * Show fragment then hide other fragment.
+     *
+     * @param showIndex The index of fragment will be shown.
+     * @param fragments The fragments will be hide.
+     */
+    public static void showHide(final int showIndex, @NonNull final List<Fragment> fragments,
+                                @AnimatorRes @AnimRes final int enterAnim,
+                                @AnimatorRes @AnimRes final int exitAnim,
+                                @AnimatorRes @AnimRes final int popEnterAnim,
+                                @AnimatorRes @AnimRes final int popExitAnim) {
+        showHide(fragments.get(showIndex), fragments, enterAnim, exitAnim, popEnterAnim, popExitAnim);
+    }
+
+    /**
+     * Show fragment then hide other fragment.
+     *
+     * @param show The fragment will be show.
+     * @param hide The fragment will be hide.
+     */
+    public static void showHide(@NonNull final Fragment show, @NonNull final List<Fragment> hide,
+                                @AnimatorRes @AnimRes final int enterAnim,
+                                @AnimatorRes @AnimRes final int exitAnim,
+                                @AnimatorRes @AnimRes final int popEnterAnim,
+                                @AnimatorRes @AnimRes final int popExitAnim) {
+        for (Fragment fragment : hide) {
+            putArgs(fragment, fragment != show);
+        }
+        FragmentManager fm = show.getFragmentManager();
+        if (fm != null) {
+            FragmentTransaction ft = fm.beginTransaction();
+            addAnim(ft, enterAnim, exitAnim, popEnterAnim, popExitAnim);
+            operate(TYPE_SHOW_HIDE_FRAGMENT, fm, ft, show, hide.toArray(new Fragment[0]));
+        }
     }
 
     /**
@@ -1357,7 +1396,7 @@ public static void popAll(@NonNull final FragmentManager fm, final boolean isImm
      * @param remove The fragment will be removed.
      */
     public static void remove(@NonNull final Fragment remove) {
-        operateNoAnim(remove.getFragmentManager(), TYPE_REMOVE_FRAGMENT, null, remove);
+        operateNoAnim(TYPE_REMOVE_FRAGMENT, remove.getFragmentManager(), null, remove);
     }
 
     /**
@@ -1367,8 +1406,7 @@ public static void remove(@NonNull final Fragment remove) {
      * @param isIncludeSelf True to include the fragment, false otherwise.
      */
     public static void removeTo(@NonNull final Fragment removeTo, final boolean isIncludeSelf) {
-        operateNoAnim(removeTo.getFragmentManager(), TYPE_REMOVE_TO_FRAGMENT,
-                isIncludeSelf ? removeTo : null, removeTo);
+        operateNoAnim(TYPE_REMOVE_TO_FRAGMENT, removeTo.getFragmentManager(), isIncludeSelf ? removeTo : null, removeTo);
     }
 
     /**
@@ -1378,11 +1416,7 @@ public static void removeTo(@NonNull final Fragment removeTo, final boolean isIn
      */
     public static void removeAll(@NonNull final FragmentManager fm) {
         List<Fragment> fragments = getFragments(fm);
-        operateNoAnim(fm,
-                TYPE_REMOVE_FRAGMENT,
-                null,
-                fragments.toArray(new Fragment[fragments.size()])
-        );
+        operateNoAnim(TYPE_REMOVE_FRAGMENT, fm, null, fragments.toArray(new Fragment[0]));
     }
 
     private static void putArgs(final Fragment fragment, final Args args) {
@@ -1414,8 +1448,7 @@ private static Args getArgs(final Fragment fragment) {
                 bundle.getBoolean(ARGS_IS_ADD_STACK));
     }
 
-    private static void operateNoAnim(@Nullable final FragmentManager fm,
-                                      final int type,
+    private static void operateNoAnim(final int type, @Nullable final FragmentManager fm,
                                       final Fragment src,
                                       Fragment... dest) {
         if (fm == null) return;
@@ -1493,6 +1526,7 @@ private static void operate(final int type,
                 break;
         }
         ft.commitAllowingStateLoss();
+        fm.executePendingTransactions();
     }
 
     private static void addAnim(final FragmentTransaction ft,
@@ -1519,7 +1553,7 @@ private static void addSharedElement(final FragmentTransaction ft,
      * @return the top fragment
      */
     public static Fragment getTop(@NonNull final FragmentManager fm) {
-        return getTopIsInStack(fm, false);
+        return getTopIsInStack(fm, null, false);
     }
 
     /**
@@ -1529,10 +1563,11 @@ public static Fragment getTop(@NonNull final FragmentManager fm) {
      * @return the top fragment in stack
      */
     public static Fragment getTopInStack(@NonNull final FragmentManager fm) {
-        return getTopIsInStack(fm, true);
+        return getTopIsInStack(fm, null, true);
     }
 
     private static Fragment getTopIsInStack(@NonNull final FragmentManager fm,
+                                            Fragment parentFragment,
                                             final boolean isInStack) {
         List<Fragment> fragments = getFragments(fm);
         for (int i = fragments.size() - 1; i >= 0; --i) {
@@ -1541,14 +1576,14 @@ private static Fragment getTopIsInStack(@NonNull final FragmentManager fm,
                 if (isInStack) {
                     Bundle args = fragment.getArguments();
                     if (args != null && args.getBoolean(ARGS_IS_ADD_STACK)) {
-                        return fragment;
+                        return getTopIsInStack(fragment.getChildFragmentManager(), fragment, true);
                     }
                 } else {
-                    return fragment;
+                    return getTopIsInStack(fragment.getChildFragmentManager(), fragment, false);
                 }
             }
         }
-        return null;
+        return parentFragment;
     }
 
     /**
@@ -1558,7 +1593,7 @@ private static Fragment getTopIsInStack(@NonNull final FragmentManager fm,
      * @return the top fragment which is shown
      */
     public static Fragment getTopShow(@NonNull final FragmentManager fm) {
-        return getTopShowIsInStack(fm, false);
+        return getTopShowIsInStack(fm, null, false);
     }
 
     /**
@@ -1568,10 +1603,11 @@ public static Fragment getTopShow(@NonNull final FragmentManager fm) {
      * @return the top fragment which is shown in stack
      */
     public static Fragment getTopShowInStack(@NonNull final FragmentManager fm) {
-        return getTopShowIsInStack(fm, true);
+        return getTopShowIsInStack(fm, null, true);
     }
 
     private static Fragment getTopShowIsInStack(@NonNull final FragmentManager fm,
+                                                Fragment parentFragment,
                                                 final boolean isInStack) {
         List<Fragment> fragments = getFragments(fm);
         for (int i = fragments.size() - 1; i >= 0; --i) {
@@ -1583,14 +1619,14 @@ private static Fragment getTopShowIsInStack(@NonNull final FragmentManager fm,
                 if (isInStack) {
                     Bundle args = fragment.getArguments();
                     if (args != null && args.getBoolean(ARGS_IS_ADD_STACK)) {
-                        return fragment;
+                        return getTopShowIsInStack(fragment.getChildFragmentManager(), fragment, true);
                     }
                 } else {
-                    return fragment;
+                    return getTopShowIsInStack(fragment.getChildFragmentManager(), fragment, false);
                 }
             }
         }
-        return null;
+        return parentFragment;
     }
 
     /**
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/GsonUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/GsonUtils.java
new file mode 100644
index 0000000000..c3eb0684c6
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/GsonUtils.java
@@ -0,0 +1,283 @@
+package com.blankj.utilcode.util;
+
+import android.text.TextUtils;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+
+import java.io.Reader;
+import java.lang.reflect.Type;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import androidx.annotation.NonNull;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/04/05
+ *     desc  : utils about gson
+ * </pre>
+ */
+public final class GsonUtils {
+
+    private static final String KEY_DEFAULT   = "defaultGson";
+    private static final String KEY_DELEGATE  = "delegateGson";
+    private static final String KEY_LOG_UTILS = "logUtilsGson";
+
+    private static final Map<String, Gson> GSONS = new ConcurrentHashMap<>();
+
+    private GsonUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Set the delegate of {@link Gson}.
+     *
+     * @param delegate The delegate of {@link Gson}.
+     */
+    public static void setGsonDelegate(Gson delegate) {
+        if (delegate == null) return;
+        GSONS.put(KEY_DELEGATE, delegate);
+    }
+
+    /**
+     * Set the {@link Gson} with key.
+     *
+     * @param key  The key.
+     * @param gson The {@link Gson}.
+     */
+    public static void setGson(final String key, final Gson gson) {
+        if (TextUtils.isEmpty(key) || gson == null) return;
+        GSONS.put(key, gson);
+    }
+
+    /**
+     * Return the {@link Gson} with key.
+     *
+     * @param key The key.
+     * @return the {@link Gson} with key
+     */
+    public static Gson getGson(final String key) {
+        return GSONS.get(key);
+    }
+
+    public static Gson getGson() {
+        Gson gsonDelegate = GSONS.get(KEY_DELEGATE);
+        if (gsonDelegate != null) {
+            return gsonDelegate;
+        }
+        Gson gsonDefault = GSONS.get(KEY_DEFAULT);
+        if (gsonDefault == null) {
+            gsonDefault = createGson();
+            GSONS.put(KEY_DEFAULT, gsonDefault);
+        }
+        return gsonDefault;
+    }
+
+    /**
+     * Serializes an object into json.
+     *
+     * @param object The object to serialize.
+     * @return object serialized into json.
+     */
+    public static String toJson(final Object object) {
+        return toJson(getGson(), object);
+    }
+
+    /**
+     * Serializes an object into json.
+     *
+     * @param src       The object to serialize.
+     * @param typeOfSrc The specific genericized type of src.
+     * @return object serialized into json.
+     */
+    public static String toJson(final Object src, @NonNull final Type typeOfSrc) {
+        return toJson(getGson(), src, typeOfSrc);
+    }
+
+    /**
+     * Serializes an object into json.
+     *
+     * @param gson   The gson.
+     * @param object The object to serialize.
+     * @return object serialized into json.
+     */
+    public static String toJson(@NonNull final Gson gson, final Object object) {
+        return gson.toJson(object);
+    }
+
+    /**
+     * Serializes an object into json.
+     *
+     * @param gson      The gson.
+     * @param src       The object to serialize.
+     * @param typeOfSrc The specific genericized type of src.
+     * @return object serialized into json.
+     */
+    public static String toJson(@NonNull final Gson gson, final Object src, @NonNull final Type typeOfSrc) {
+        return gson.toJson(src, typeOfSrc);
+    }
+
+    /**
+     * Converts {@link String} to given type.
+     *
+     * @param json The json to convert.
+     * @param type Type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(final String json, @NonNull final Class<T> type) {
+        return fromJson(getGson(), json, type);
+    }
+
+    /**
+     * Converts {@link String} to given type.
+     *
+     * @param json the json to convert.
+     * @param type type type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(final String json, @NonNull final Type type) {
+        return fromJson(getGson(), json, type);
+    }
+
+    /**
+     * Converts {@link Reader} to given type.
+     *
+     * @param reader the reader to convert.
+     * @param type   type type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(@NonNull final Reader reader, @NonNull final Class<T> type) {
+        return fromJson(getGson(), reader, type);
+    }
+
+    /**
+     * Converts {@link Reader} to given type.
+     *
+     * @param reader the reader to convert.
+     * @param type   type type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(@NonNull final Reader reader, @NonNull final Type type) {
+        return fromJson(getGson(), reader, type);
+    }
+
+    /**
+     * Converts {@link String} to given type.
+     *
+     * @param gson The gson.
+     * @param json The json to convert.
+     * @param type Type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(@NonNull final Gson gson, final String json, @NonNull final Class<T> type) {
+        return gson.fromJson(json, type);
+    }
+
+    /**
+     * Converts {@link String} to given type.
+     *
+     * @param gson The gson.
+     * @param json the json to convert.
+     * @param type type type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(@NonNull final Gson gson, final String json, @NonNull final Type type) {
+        return gson.fromJson(json, type);
+    }
+
+    /**
+     * Converts {@link Reader} to given type.
+     *
+     * @param gson   The gson.
+     * @param reader the reader to convert.
+     * @param type   type type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(@NonNull final Gson gson, final Reader reader, @NonNull final Class<T> type) {
+        return gson.fromJson(reader, type);
+    }
+
+    /**
+     * Converts {@link Reader} to given type.
+     *
+     * @param gson   The gson.
+     * @param reader the reader to convert.
+     * @param type   type type json will be converted to.
+     * @return instance of type
+     */
+    public static <T> T fromJson(@NonNull final Gson gson, final Reader reader, @NonNull final Type type) {
+        return gson.fromJson(reader, type);
+    }
+
+    /**
+     * Return the type of {@link List} with the {@code type}.
+     *
+     * @param type The type.
+     * @return the type of {@link List} with the {@code type}
+     */
+    public static Type getListType(@NonNull final Type type) {
+        return TypeToken.getParameterized(List.class, type).getType();
+    }
+
+    /**
+     * Return the type of {@link Set} with the {@code type}.
+     *
+     * @param type The type.
+     * @return the type of {@link Set} with the {@code type}
+     */
+    public static Type getSetType(@NonNull final Type type) {
+        return TypeToken.getParameterized(Set.class, type).getType();
+    }
+
+    /**
+     * Return the type of map with the {@code keyType} and {@code valueType}.
+     *
+     * @param keyType   The type of key.
+     * @param valueType The type of value.
+     * @return the type of map with the {@code keyType} and {@code valueType}
+     */
+    public static Type getMapType(@NonNull final Type keyType, @NonNull final Type valueType) {
+        return TypeToken.getParameterized(Map.class, keyType, valueType).getType();
+    }
+
+    /**
+     * Return the type of array with the {@code type}.
+     *
+     * @param type The type.
+     * @return the type of map with the {@code type}
+     */
+    public static Type getArrayType(@NonNull final Type type) {
+        return TypeToken.getArray(type).getType();
+    }
+
+    /**
+     * Return the type of {@code rawType} with the {@code typeArguments}.
+     *
+     * @param rawType       The raw type.
+     * @param typeArguments The type of arguments.
+     * @return the type of map with the {@code type}
+     */
+    public static Type getType(@NonNull final Type rawType, @NonNull final Type... typeArguments) {
+        return TypeToken.getParameterized(rawType, typeArguments).getType();
+    }
+
+    static Gson getGson4LogUtils() {
+        Gson gson4LogUtils = GSONS.get(KEY_LOG_UTILS);
+        if (gson4LogUtils == null) {
+            gson4LogUtils = new GsonBuilder().setPrettyPrinting().serializeNulls().create();
+            GSONS.put(KEY_LOG_UTILS, gson4LogUtils);
+        }
+        return gson4LogUtils;
+    }
+
+    private static Gson createGson() {
+        return new GsonBuilder().serializeNulls().disableHtmlEscaping().create();
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java
new file mode 100644
index 0000000000..e0d472428f
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java
@@ -0,0 +1,2374 @@
+package com.blankj.utilcode.util;
+
+import android.Manifest;
+import android.content.ContentValues;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Bitmap.CompressFormat;
+import android.graphics.BitmapFactory;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.LinearGradient;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PixelFormat;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
+import android.graphics.PorterDuffXfermode;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.graphics.Shader;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.media.ExifInterface;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Environment;
+import android.provider.MediaStore;
+import android.renderscript.Allocation;
+import android.renderscript.Element;
+import android.renderscript.RenderScript;
+import android.renderscript.ScriptIntrinsicBlur;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.View;
+
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import androidx.annotation.ColorInt;
+import androidx.annotation.DrawableRes;
+import androidx.annotation.FloatRange;
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
+import androidx.core.content.ContextCompat;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/12
+ *     desc  : utils about image
+ * </pre>
+ */
+public final class ImageUtils {
+
+    private ImageUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Bitmap to bytes.
+     *
+     * @param bitmap The bitmap.
+     * @return bytes
+     */
+    public static byte[] bitmap2Bytes(final Bitmap bitmap) {
+        return bitmap2Bytes(bitmap, CompressFormat.PNG, 100);
+    }
+
+    /**
+     * Bitmap to bytes.
+     *
+     * @param bitmap  The bitmap.
+     * @param format  The format of bitmap.
+     * @param quality The quality.
+     * @return bytes
+     */
+    public static byte[] bitmap2Bytes(@Nullable final Bitmap bitmap, @NonNull final CompressFormat format, int quality) {
+        if (bitmap == null) return null;
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        bitmap.compress(format, quality, baos);
+        return baos.toByteArray();
+    }
+
+    /**
+     * Bytes to bitmap.
+     *
+     * @param bytes The bytes.
+     * @return bitmap
+     */
+    public static Bitmap bytes2Bitmap(@Nullable final byte[] bytes) {
+        return (bytes == null || bytes.length == 0)
+                ? null
+                : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
+    }
+
+    /**
+     * Drawable to bitmap.
+     *
+     * @param drawable The drawable.
+     * @return bitmap
+     */
+    public static Bitmap drawable2Bitmap(@Nullable final Drawable drawable) {
+        if (drawable == null) return null;
+        if (drawable instanceof BitmapDrawable) {
+            BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
+            if (bitmapDrawable.getBitmap() != null) {
+                return bitmapDrawable.getBitmap();
+            }
+        }
+        Bitmap bitmap;
+        if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
+            bitmap = Bitmap.createBitmap(1, 1,
+                    drawable.getOpacity() != PixelFormat.OPAQUE
+                            ? Bitmap.Config.ARGB_8888
+                            : Bitmap.Config.RGB_565);
+        } else {
+            bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
+                    drawable.getIntrinsicHeight(),
+                    drawable.getOpacity() != PixelFormat.OPAQUE
+                            ? Bitmap.Config.ARGB_8888
+                            : Bitmap.Config.RGB_565);
+        }
+        Canvas canvas = new Canvas(bitmap);
+        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
+        drawable.draw(canvas);
+        return bitmap;
+    }
+
+    /**
+     * Bitmap to drawable.
+     *
+     * @param bitmap The bitmap.
+     * @return drawable
+     */
+    public static Drawable bitmap2Drawable(@Nullable final Bitmap bitmap) {
+        return bitmap == null ? null : new BitmapDrawable(Utils.getApp().getResources(), bitmap);
+    }
+
+    /**
+     * Drawable to bytes.
+     *
+     * @param drawable The drawable.
+     * @return bytes
+     */
+    public static byte[] drawable2Bytes(@Nullable final Drawable drawable) {
+        return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable));
+    }
+
+    /**
+     * Drawable to bytes.
+     *
+     * @param drawable The drawable.
+     * @param format   The format of bitmap.
+     * @return bytes
+     */
+    public static byte[] drawable2Bytes(final Drawable drawable, final CompressFormat format, int quality) {
+        return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable), format, quality);
+    }
+
+    /**
+     * Bytes to drawable.
+     *
+     * @param bytes The bytes.
+     * @return drawable
+     */
+    public static Drawable bytes2Drawable(final byte[] bytes) {
+        return bitmap2Drawable(bytes2Bitmap(bytes));
+    }
+
+    /**
+     * View to bitmap.
+     *
+     * @param view The view.
+     * @return bitmap
+     */
+    public static Bitmap view2Bitmap(final View view) {
+        if (view == null) return null;
+        boolean drawingCacheEnabled = view.isDrawingCacheEnabled();
+        boolean willNotCacheDrawing = view.willNotCacheDrawing();
+        view.setDrawingCacheEnabled(true);
+        view.setWillNotCacheDrawing(false);
+        Bitmap drawingCache = view.getDrawingCache();
+        Bitmap bitmap;
+        if (null == drawingCache || drawingCache.isRecycled()) {
+            view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
+                    View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
+            view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
+            view.buildDrawingCache();
+            drawingCache = view.getDrawingCache();
+            if (null == drawingCache || drawingCache.isRecycled()) {
+                bitmap = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.RGB_565);
+                Canvas canvas = new Canvas(bitmap);
+                view.draw(canvas);
+            } else {
+                bitmap = Bitmap.createBitmap(drawingCache);
+            }
+        } else {
+            bitmap = Bitmap.createBitmap(drawingCache);
+        }
+        view.setWillNotCacheDrawing(willNotCacheDrawing);
+        view.setDrawingCacheEnabled(drawingCacheEnabled);
+        return bitmap;
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param file The file.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final File file) {
+        if (file == null) return null;
+        return BitmapFactory.decodeFile(file.getAbsolutePath());
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param file      The file.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final File file, final int maxWidth, final int maxHeight) {
+        if (file == null) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param filePath The path of file.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final String filePath) {
+        if (UtilsBridge.isSpace(filePath)) return null;
+        return BitmapFactory.decodeFile(filePath);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param filePath  The path of file.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final String filePath, final int maxWidth, final int maxHeight) {
+        if (UtilsBridge.isSpace(filePath)) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeFile(filePath, options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeFile(filePath, options);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param is The input stream.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final InputStream is) {
+        if (is == null) return null;
+        return BitmapFactory.decodeStream(is);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param is        The input stream.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final InputStream is, final int maxWidth, final int maxHeight) {
+        if (is == null) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeStream(is, null, options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeStream(is, null, options);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param data   The data.
+     * @param offset The offset.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final byte[] data, final int offset) {
+        if (data.length == 0) return null;
+        return BitmapFactory.decodeByteArray(data, offset, data.length);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param data      The data.
+     * @param offset    The offset.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final byte[] data,
+                                   final int offset,
+                                   final int maxWidth,
+                                   final int maxHeight) {
+        if (data.length == 0) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeByteArray(data, offset, data.length, options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeByteArray(data, offset, data.length, options);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param resId The resource id.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(@DrawableRes final int resId) {
+        Drawable drawable = ContextCompat.getDrawable(Utils.getApp(), resId);
+        if (drawable == null) {
+            return null;
+        }
+        Canvas canvas = new Canvas();
+        Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
+                drawable.getIntrinsicHeight(),
+                Bitmap.Config.ARGB_8888);
+        canvas.setBitmap(bitmap);
+        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+        drawable.draw(canvas);
+        return bitmap;
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param resId     The resource id.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(@DrawableRes final int resId,
+                                   final int maxWidth,
+                                   final int maxHeight) {
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        final Resources resources = Utils.getApp().getResources();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeResource(resources, resId, options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeResource(resources, resId, options);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param fd The file descriptor.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final FileDescriptor fd) {
+        if (fd == null) return null;
+        return BitmapFactory.decodeFileDescriptor(fd);
+    }
+
+    /**
+     * Return bitmap.
+     *
+     * @param fd        The file descriptor
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return bitmap
+     */
+    public static Bitmap getBitmap(final FileDescriptor fd,
+                                   final int maxWidth,
+                                   final int maxHeight) {
+        if (fd == null) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeFileDescriptor(fd, null, options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeFileDescriptor(fd, null, options);
+    }
+
+    /**
+     * Return the bitmap with the specified color.
+     *
+     * @param src   The source of bitmap.
+     * @param color The color.
+     * @return the bitmap with the specified color
+     */
+    public static Bitmap drawColor(@NonNull final Bitmap src, @ColorInt final int color) {
+        return drawColor(src, color, false);
+    }
+
+    /**
+     * Return the bitmap with the specified color.
+     *
+     * @param src     The source of bitmap.
+     * @param color   The color.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the bitmap with the specified color
+     */
+    public static Bitmap drawColor(@NonNull final Bitmap src,
+                                   @ColorInt final int color,
+                                   final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
+        Canvas canvas = new Canvas(ret);
+        canvas.drawColor(color, PorterDuff.Mode.DARKEN);
+        return ret;
+    }
+
+    /**
+     * Return the scaled bitmap.
+     *
+     * @param src       The source of bitmap.
+     * @param newWidth  The new width.
+     * @param newHeight The new height.
+     * @return the scaled bitmap
+     */
+    public static Bitmap scale(final Bitmap src, final int newWidth, final int newHeight) {
+        return scale(src, newWidth, newHeight, false);
+    }
+
+    /**
+     * Return the scaled bitmap.
+     *
+     * @param src       The source of bitmap.
+     * @param newWidth  The new width.
+     * @param newHeight The new height.
+     * @param recycle   True to recycle the source of bitmap, false otherwise.
+     * @return the scaled bitmap
+     */
+    public static Bitmap scale(final Bitmap src,
+                               final int newWidth,
+                               final int newHeight,
+                               final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = Bitmap.createScaledBitmap(src, newWidth, newHeight, true);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the scaled bitmap
+     *
+     * @param src         The source of bitmap.
+     * @param scaleWidth  The scale of width.
+     * @param scaleHeight The scale of height.
+     * @return the scaled bitmap
+     */
+    public static Bitmap scale(final Bitmap src, final float scaleWidth, final float scaleHeight) {
+        return scale(src, scaleWidth, scaleHeight, false);
+    }
+
+    /**
+     * Return the scaled bitmap
+     *
+     * @param src         The source of bitmap.
+     * @param scaleWidth  The scale of width.
+     * @param scaleHeight The scale of height.
+     * @param recycle     True to recycle the source of bitmap, false otherwise.
+     * @return the scaled bitmap
+     */
+    public static Bitmap scale(final Bitmap src,
+                               final float scaleWidth,
+                               final float scaleHeight,
+                               final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Matrix matrix = new Matrix();
+        matrix.setScale(scaleWidth, scaleHeight);
+        Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the clipped bitmap.
+     *
+     * @param src    The source of bitmap.
+     * @param x      The x coordinate of the first pixel.
+     * @param y      The y coordinate of the first pixel.
+     * @param width  The width.
+     * @param height The height.
+     * @return the clipped bitmap
+     */
+    public static Bitmap clip(final Bitmap src,
+                              final int x,
+                              final int y,
+                              final int width,
+                              final int height) {
+        return clip(src, x, y, width, height, false);
+    }
+
+    /**
+     * Return the clipped bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param x       The x coordinate of the first pixel.
+     * @param y       The y coordinate of the first pixel.
+     * @param width   The width.
+     * @param height  The height.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the clipped bitmap
+     */
+    public static Bitmap clip(final Bitmap src,
+                              final int x,
+                              final int y,
+                              final int width,
+                              final int height,
+                              final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = Bitmap.createBitmap(src, x, y, width, height);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the skewed bitmap.
+     *
+     * @param src The source of bitmap.
+     * @param kx  The skew factor of x.
+     * @param ky  The skew factor of y.
+     * @return the skewed bitmap
+     */
+    public static Bitmap skew(final Bitmap src, final float kx, final float ky) {
+        return skew(src, kx, ky, 0, 0, false);
+    }
+
+    /**
+     * Return the skewed bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param kx      The skew factor of x.
+     * @param ky      The skew factor of y.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the skewed bitmap
+     */
+    public static Bitmap skew(final Bitmap src,
+                              final float kx,
+                              final float ky,
+                              final boolean recycle) {
+        return skew(src, kx, ky, 0, 0, recycle);
+    }
+
+    /**
+     * Return the skewed bitmap.
+     *
+     * @param src The source of bitmap.
+     * @param kx  The skew factor of x.
+     * @param ky  The skew factor of y.
+     * @param px  The x coordinate of the pivot point.
+     * @param py  The y coordinate of the pivot point.
+     * @return the skewed bitmap
+     */
+    public static Bitmap skew(final Bitmap src,
+                              final float kx,
+                              final float ky,
+                              final float px,
+                              final float py) {
+        return skew(src, kx, ky, px, py, false);
+    }
+
+    /**
+     * Return the skewed bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param kx      The skew factor of x.
+     * @param ky      The skew factor of y.
+     * @param px      The x coordinate of the pivot point.
+     * @param py      The y coordinate of the pivot point.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the skewed bitmap
+     */
+    public static Bitmap skew(final Bitmap src,
+                              final float kx,
+                              final float ky,
+                              final float px,
+                              final float py,
+                              final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Matrix matrix = new Matrix();
+        matrix.setSkew(kx, ky, px, py);
+        Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the rotated bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param degrees The number of degrees.
+     * @param px      The x coordinate of the pivot point.
+     * @param py      The y coordinate of the pivot point.
+     * @return the rotated bitmap
+     */
+    public static Bitmap rotate(final Bitmap src,
+                                final int degrees,
+                                final float px,
+                                final float py) {
+        return rotate(src, degrees, px, py, false);
+    }
+
+    /**
+     * Return the rotated bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param degrees The number of degrees.
+     * @param px      The x coordinate of the pivot point.
+     * @param py      The y coordinate of the pivot point.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the rotated bitmap
+     */
+    public static Bitmap rotate(final Bitmap src,
+                                final int degrees,
+                                final float px,
+                                final float py,
+                                final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        if (degrees == 0) return src;
+        Matrix matrix = new Matrix();
+        matrix.setRotate(degrees, px, py);
+        Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the rotated degree.
+     *
+     * @param filePath The path of file.
+     * @return the rotated degree
+     */
+    public static int getRotateDegree(final String filePath) {
+        try {
+            ExifInterface exifInterface = new ExifInterface(filePath);
+            int orientation = exifInterface.getAttributeInt(
+                    ExifInterface.TAG_ORIENTATION,
+                    ExifInterface.ORIENTATION_NORMAL
+            );
+            switch (orientation) {
+                case ExifInterface.ORIENTATION_ROTATE_90:
+                    return 90;
+                case ExifInterface.ORIENTATION_ROTATE_180:
+                    return 180;
+                case ExifInterface.ORIENTATION_ROTATE_270:
+                    return 270;
+                default:
+                    return 0;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    /**
+     * Return the round bitmap.
+     *
+     * @param src The source of bitmap.
+     * @return the round bitmap
+     */
+    public static Bitmap toRound(final Bitmap src) {
+        return toRound(src, 0, 0, false);
+    }
+
+    /**
+     * Return the round bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the round bitmap
+     */
+    public static Bitmap toRound(final Bitmap src, final boolean recycle) {
+        return toRound(src, 0, 0, recycle);
+    }
+
+    /**
+     * Return the round bitmap.
+     *
+     * @param src         The source of bitmap.
+     * @param borderSize  The size of border.
+     * @param borderColor The color of border.
+     * @return the round bitmap
+     */
+    public static Bitmap toRound(final Bitmap src,
+                                 @IntRange(from = 0) int borderSize,
+                                 @ColorInt int borderColor) {
+        return toRound(src, borderSize, borderColor, false);
+    }
+
+    /**
+     * Return the round bitmap.
+     *
+     * @param src         The source of bitmap.
+     * @param recycle     True to recycle the source of bitmap, false otherwise.
+     * @param borderSize  The size of border.
+     * @param borderColor The color of border.
+     * @return the round bitmap
+     */
+    public static Bitmap toRound(final Bitmap src,
+                                 @IntRange(from = 0) int borderSize,
+                                 @ColorInt int borderColor,
+                                 final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        int width = src.getWidth();
+        int height = src.getHeight();
+        int size = Math.min(width, height);
+        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
+        float center = size / 2f;
+        RectF rectF = new RectF(0, 0, width, height);
+        rectF.inset((width - size) / 2f, (height - size) / 2f);
+        Matrix matrix = new Matrix();
+        matrix.setTranslate(rectF.left, rectF.top);
+        if (width != height) {
+            matrix.preScale((float) size / width, (float) size / height);
+        }
+        BitmapShader shader = new BitmapShader(src, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
+        shader.setLocalMatrix(matrix);
+        paint.setShader(shader);
+        Canvas canvas = new Canvas(ret);
+        canvas.drawRoundRect(rectF, center, center, paint);
+        if (borderSize > 0) {
+            paint.setShader(null);
+            paint.setColor(borderColor);
+            paint.setStyle(Paint.Style.STROKE);
+            paint.setStrokeWidth(borderSize);
+            float radius = center - borderSize / 2f;
+            canvas.drawCircle(width / 2f, height / 2f, radius, paint);
+        }
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the round corner bitmap.
+     *
+     * @param src    The source of bitmap.
+     * @param radius The radius of corner.
+     * @return the round corner bitmap
+     */
+    public static Bitmap toRoundCorner(final Bitmap src, final float radius) {
+        return toRoundCorner(src, radius, 0, 0, false);
+    }
+
+    /**
+     * Return the round corner bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param radius  The radius of corner.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the round corner bitmap
+     */
+    public static Bitmap toRoundCorner(final Bitmap src,
+                                       final float radius,
+                                       final boolean recycle) {
+        return toRoundCorner(src, radius, 0, 0, recycle);
+    }
+
+    /**
+     * Return the round corner bitmap.
+     *
+     * @param src         The source of bitmap.
+     * @param radius      The radius of corner.
+     * @param borderSize  The size of border.
+     * @param borderColor The color of border.
+     * @return the round corner bitmap
+     */
+    public static Bitmap toRoundCorner(final Bitmap src,
+                                       final float radius,
+                                       @FloatRange(from = 0) float borderSize,
+                                       @ColorInt int borderColor) {
+        return toRoundCorner(src, radius, borderSize, borderColor, false);
+    }
+
+    /**
+     * Return the round corner bitmap.
+     *
+     * @param src         The source of bitmap.
+     * @param radii       Array of 8 values, 4 pairs of [X,Y] radii
+     * @param borderSize  The size of border.
+     * @param borderColor The color of border.
+     * @return the round corner bitmap
+     */
+    public static Bitmap toRoundCorner(final Bitmap src,
+                                       final float[] radii,
+                                       @FloatRange(from = 0) float borderSize,
+                                       @ColorInt int borderColor) {
+        return toRoundCorner(src, radii, borderSize, borderColor, false);
+    }
+
+    /**
+     * Return the round corner bitmap.
+     *
+     * @param src         The source of bitmap.
+     * @param radius      The radius of corner.
+     * @param borderSize  The size of border.
+     * @param borderColor The color of border.
+     * @param recycle     True to recycle the source of bitmap, false otherwise.
+     * @return the round corner bitmap
+     */
+    public static Bitmap toRoundCorner(final Bitmap src,
+                                       final float radius,
+                                       @FloatRange(from = 0) float borderSize,
+                                       @ColorInt int borderColor,
+                                       final boolean recycle) {
+        float[] radii = {radius, radius, radius, radius, radius, radius, radius, radius};
+        return toRoundCorner(src, radii, borderSize, borderColor, recycle);
+    }
+
+    /**
+     * Return the round corner bitmap.
+     *
+     * @param src         The source of bitmap.
+     * @param radii       Array of 8 values, 4 pairs of [X,Y] radii
+     * @param borderSize  The size of border.
+     * @param borderColor The color of border.
+     * @param recycle     True to recycle the source of bitmap, false otherwise.
+     * @return the round corner bitmap
+     */
+    public static Bitmap toRoundCorner(final Bitmap src,
+                                       final float[] radii,
+                                       @FloatRange(from = 0) float borderSize,
+                                       @ColorInt int borderColor,
+                                       final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        int width = src.getWidth();
+        int height = src.getHeight();
+        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
+        BitmapShader shader = new BitmapShader(src, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
+        paint.setShader(shader);
+        Canvas canvas = new Canvas(ret);
+        RectF rectF = new RectF(0, 0, width, height);
+        float halfBorderSize = borderSize / 2f;
+        rectF.inset(halfBorderSize, halfBorderSize);
+        Path path = new Path();
+        path.addRoundRect(rectF, radii, Path.Direction.CW);
+        canvas.drawPath(path, paint);
+        if (borderSize > 0) {
+            paint.setShader(null);
+            paint.setColor(borderColor);
+            paint.setStyle(Paint.Style.STROKE);
+            paint.setStrokeWidth(borderSize);
+            paint.setStrokeCap(Paint.Cap.ROUND);
+            canvas.drawPath(path, paint);
+        }
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the round corner bitmap with border.
+     *
+     * @param src          The source of bitmap.
+     * @param borderSize   The size of border.
+     * @param color        The color of border.
+     * @param cornerRadius The radius of corner.
+     * @return the round corner bitmap with border
+     */
+    public static Bitmap addCornerBorder(final Bitmap src,
+                                         @FloatRange(from = 1) final float borderSize,
+                                         @ColorInt final int color,
+                                         @FloatRange(from = 0) final float cornerRadius) {
+        return addBorder(src, borderSize, color, false, cornerRadius, false);
+    }
+
+    /**
+     * Return the round corner bitmap with border.
+     *
+     * @param src        The source of bitmap.
+     * @param borderSize The size of border.
+     * @param color      The color of border.
+     * @param radii      Array of 8 values, 4 pairs of [X,Y] radii
+     * @return the round corner bitmap with border
+     */
+    public static Bitmap addCornerBorder(final Bitmap src,
+                                         @FloatRange(from = 1) final float borderSize,
+                                         @ColorInt final int color,
+                                         final float[] radii) {
+        return addBorder(src, borderSize, color, false, radii, false);
+    }
+
+    /**
+     * Return the round corner bitmap with border.
+     *
+     * @param src        The source of bitmap.
+     * @param borderSize The size of border.
+     * @param color      The color of border.
+     * @param radii      Array of 8 values, 4 pairs of [X,Y] radii
+     * @param recycle    True to recycle the source of bitmap, false otherwise.
+     * @return the round corner bitmap with border
+     */
+    public static Bitmap addCornerBorder(final Bitmap src,
+                                         @FloatRange(from = 1) final float borderSize,
+                                         @ColorInt final int color,
+                                         final float[] radii,
+                                         final boolean recycle) {
+        return addBorder(src, borderSize, color, false, radii, recycle);
+    }
+
+    /**
+     * Return the round corner bitmap with border.
+     *
+     * @param src          The source of bitmap.
+     * @param borderSize   The size of border.
+     * @param color        The color of border.
+     * @param cornerRadius The radius of corner.
+     * @param recycle      True to recycle the source of bitmap, false otherwise.
+     * @return the round corner bitmap with border
+     */
+    public static Bitmap addCornerBorder(final Bitmap src,
+                                         @FloatRange(from = 1) final float borderSize,
+                                         @ColorInt final int color,
+                                         @FloatRange(from = 0) final float cornerRadius,
+                                         final boolean recycle) {
+        return addBorder(src, borderSize, color, false, cornerRadius, recycle);
+    }
+
+    /**
+     * Return the round bitmap with border.
+     *
+     * @param src        The source of bitmap.
+     * @param borderSize The size of border.
+     * @param color      The color of border.
+     * @return the round bitmap with border
+     */
+    public static Bitmap addCircleBorder(final Bitmap src,
+                                         @FloatRange(from = 1) final float borderSize,
+                                         @ColorInt final int color) {
+        return addBorder(src, borderSize, color, true, 0, false);
+    }
+
+    /**
+     * Return the round bitmap with border.
+     *
+     * @param src        The source of bitmap.
+     * @param borderSize The size of border.
+     * @param color      The color of border.
+     * @param recycle    True to recycle the source of bitmap, false otherwise.
+     * @return the round bitmap with border
+     */
+    public static Bitmap addCircleBorder(final Bitmap src,
+                                         @FloatRange(from = 1) final float borderSize,
+                                         @ColorInt final int color,
+                                         final boolean recycle) {
+        return addBorder(src, borderSize, color, true, 0, recycle);
+    }
+
+    /**
+     * Return the bitmap with border.
+     *
+     * @param src          The source of bitmap.
+     * @param borderSize   The size of border.
+     * @param color        The color of border.
+     * @param isCircle     True to draw circle, false to draw corner.
+     * @param cornerRadius The radius of corner.
+     * @param recycle      True to recycle the source of bitmap, false otherwise.
+     * @return the bitmap with border
+     */
+    private static Bitmap addBorder(final Bitmap src,
+                                    @FloatRange(from = 1) final float borderSize,
+                                    @ColorInt final int color,
+                                    final boolean isCircle,
+                                    final float cornerRadius,
+                                    final boolean recycle) {
+        float[] radii = {cornerRadius, cornerRadius, cornerRadius, cornerRadius,
+                cornerRadius, cornerRadius, cornerRadius, cornerRadius};
+        return addBorder(src, borderSize, color, isCircle, radii, recycle);
+    }
+
+    /**
+     * Return the bitmap with border.
+     *
+     * @param src        The source of bitmap.
+     * @param borderSize The size of border.
+     * @param color      The color of border.
+     * @param isCircle   True to draw circle, false to draw corner.
+     * @param radii      Array of 8 values, 4 pairs of [X,Y] radii
+     * @param recycle    True to recycle the source of bitmap, false otherwise.
+     * @return the bitmap with border
+     */
+    private static Bitmap addBorder(final Bitmap src,
+                                    @FloatRange(from = 1) final float borderSize,
+                                    @ColorInt final int color,
+                                    final boolean isCircle,
+                                    final float[] radii,
+                                    final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
+        int width = ret.getWidth();
+        int height = ret.getHeight();
+        Canvas canvas = new Canvas(ret);
+        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        paint.setColor(color);
+        paint.setStyle(Paint.Style.STROKE);
+        paint.setStrokeWidth(borderSize);
+        if (isCircle) {
+            float radius = Math.min(width, height) / 2f - borderSize / 2f;
+            canvas.drawCircle(width / 2f, height / 2f, radius, paint);
+        } else {
+            RectF rectF = new RectF(0, 0, width, height);
+            float halfBorderSize = borderSize / 2f;
+            rectF.inset(halfBorderSize, halfBorderSize);
+            Path path = new Path();
+            path.addRoundRect(rectF, radii, Path.Direction.CW);
+            canvas.drawPath(path, paint);
+        }
+        return ret;
+    }
+
+    /**
+     * Return the bitmap with reflection.
+     *
+     * @param src              The source of bitmap.
+     * @param reflectionHeight The height of reflection.
+     * @return the bitmap with reflection
+     */
+    public static Bitmap addReflection(final Bitmap src, final int reflectionHeight) {
+        return addReflection(src, reflectionHeight, false);
+    }
+
+    /**
+     * Return the bitmap with reflection.
+     *
+     * @param src              The source of bitmap.
+     * @param reflectionHeight The height of reflection.
+     * @param recycle          True to recycle the source of bitmap, false otherwise.
+     * @return the bitmap with reflection
+     */
+    public static Bitmap addReflection(final Bitmap src,
+                                       final int reflectionHeight,
+                                       final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        final int REFLECTION_GAP = 0;
+        int srcWidth = src.getWidth();
+        int srcHeight = src.getHeight();
+        Matrix matrix = new Matrix();
+        matrix.preScale(1, -1);
+        Bitmap reflectionBitmap = Bitmap.createBitmap(src, 0, srcHeight - reflectionHeight,
+                srcWidth, reflectionHeight, matrix, false);
+        Bitmap ret = Bitmap.createBitmap(srcWidth, srcHeight + reflectionHeight, src.getConfig());
+        Canvas canvas = new Canvas(ret);
+        canvas.drawBitmap(src, 0, 0, null);
+        canvas.drawBitmap(reflectionBitmap, 0, srcHeight + REFLECTION_GAP, null);
+        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        LinearGradient shader = new LinearGradient(
+                0, srcHeight,
+                0, ret.getHeight() + REFLECTION_GAP,
+                0x70FFFFFF,
+                0x00FFFFFF,
+                Shader.TileMode.MIRROR);
+        paint.setShader(shader);
+        paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.DST_IN));
+        canvas.drawRect(0, srcHeight + REFLECTION_GAP, srcWidth, ret.getHeight(), paint);
+        if (!reflectionBitmap.isRecycled()) reflectionBitmap.recycle();
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the bitmap with text watermarking.
+     *
+     * @param src      The source of bitmap.
+     * @param content  The content of text.
+     * @param textSize The size of text.
+     * @param color    The color of text.
+     * @param x        The x coordinate of the first pixel.
+     * @param y        The y coordinate of the first pixel.
+     * @return the bitmap with text watermarking
+     */
+    public static Bitmap addTextWatermark(final Bitmap src,
+                                          final String content,
+                                          final int textSize,
+                                          @ColorInt final int color,
+                                          final float x,
+                                          final float y) {
+        return addTextWatermark(src, content, textSize, color, x, y, false);
+    }
+
+    /**
+     * Return the bitmap with text watermarking.
+     *
+     * @param src      The source of bitmap.
+     * @param content  The content of text.
+     * @param textSize The size of text.
+     * @param color    The color of text.
+     * @param x        The x coordinate of the first pixel.
+     * @param y        The y coordinate of the first pixel.
+     * @param recycle  True to recycle the source of bitmap, false otherwise.
+     * @return the bitmap with text watermarking
+     */
+    public static Bitmap addTextWatermark(final Bitmap src,
+                                          final String content,
+                                          final float textSize,
+                                          @ColorInt final int color,
+                                          final float x,
+                                          final float y,
+                                          final boolean recycle) {
+        if (isEmptyBitmap(src) || content == null) return null;
+        Bitmap ret = src.copy(src.getConfig(), true);
+        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        Canvas canvas = new Canvas(ret);
+        paint.setColor(color);
+        paint.setTextSize(textSize);
+        Rect bounds = new Rect();
+        paint.getTextBounds(content, 0, content.length(), bounds);
+        canvas.drawText(content, x, y + textSize, paint);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the bitmap with image watermarking.
+     *
+     * @param src       The source of bitmap.
+     * @param watermark The image watermarking.
+     * @param x         The x coordinate of the first pixel.
+     * @param y         The y coordinate of the first pixel.
+     * @param alpha     The alpha of watermark.
+     * @return the bitmap with image watermarking
+     */
+    public static Bitmap addImageWatermark(final Bitmap src,
+                                           final Bitmap watermark,
+                                           final int x, final int y,
+                                           final int alpha) {
+        return addImageWatermark(src, watermark, x, y, alpha, false);
+    }
+
+    /**
+     * Return the bitmap with image watermarking.
+     *
+     * @param src       The source of bitmap.
+     * @param watermark The image watermarking.
+     * @param x         The x coordinate of the first pixel.
+     * @param y         The y coordinate of the first pixel.
+     * @param alpha     The alpha of watermark.
+     * @param recycle   True to recycle the source of bitmap, false otherwise.
+     * @return the bitmap with image watermarking
+     */
+    public static Bitmap addImageWatermark(final Bitmap src,
+                                           final Bitmap watermark,
+                                           final int x,
+                                           final int y,
+                                           final int alpha,
+                                           final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = src.copy(src.getConfig(), true);
+        if (!isEmptyBitmap(watermark)) {
+            Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+            Canvas canvas = new Canvas(ret);
+            paint.setAlpha(alpha);
+            canvas.drawBitmap(watermark, x, y, paint);
+        }
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the alpha bitmap.
+     *
+     * @param src The source of bitmap.
+     * @return the alpha bitmap
+     */
+    public static Bitmap toAlpha(final Bitmap src) {
+        return toAlpha(src, false);
+    }
+
+    /**
+     * Return the alpha bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the alpha bitmap
+     */
+    public static Bitmap toAlpha(final Bitmap src, final Boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = src.extractAlpha();
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the gray bitmap.
+     *
+     * @param src The source of bitmap.
+     * @return the gray bitmap
+     */
+    public static Bitmap toGray(final Bitmap src) {
+        return toGray(src, false);
+    }
+
+    /**
+     * Return the gray bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the gray bitmap
+     */
+    public static Bitmap toGray(final Bitmap src, final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        Bitmap ret = Bitmap.createBitmap(src.getWidth(), src.getHeight(), src.getConfig());
+        Canvas canvas = new Canvas(ret);
+        Paint paint = new Paint();
+        ColorMatrix colorMatrix = new ColorMatrix();
+        colorMatrix.setSaturation(0);
+        ColorMatrixColorFilter colorMatrixColorFilter = new ColorMatrixColorFilter(colorMatrix);
+        paint.setColorFilter(colorMatrixColorFilter);
+        canvas.drawBitmap(src, 0, 0, paint);
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the blur bitmap fast.
+     * <p>zoom out, blur, zoom in</p>
+     *
+     * @param src    The source of bitmap.
+     * @param scale  The scale(0...1).
+     * @param radius The radius(0...25).
+     * @return the blur bitmap
+     */
+    public static Bitmap fastBlur(final Bitmap src,
+                                  @FloatRange(
+                                          from = 0, to = 1, fromInclusive = false
+                                  ) final float scale,
+                                  @FloatRange(
+                                          from = 0, to = 25, fromInclusive = false
+                                  ) final float radius) {
+        return fastBlur(src, scale, radius, false, false);
+    }
+
+    /**
+     * Return the blur bitmap fast.
+     * <p>zoom out, blur, zoom in</p>
+     *
+     * @param src    The source of bitmap.
+     * @param scale  The scale(0...1).
+     * @param radius The radius(0...25).
+     * @return the blur bitmap
+     */
+    public static Bitmap fastBlur(final Bitmap src,
+                                  @FloatRange(
+                                          from = 0, to = 1, fromInclusive = false
+                                  ) final float scale,
+                                  @FloatRange(
+                                          from = 0, to = 25, fromInclusive = false
+                                  ) final float radius,
+                                  final boolean recycle) {
+        return fastBlur(src, scale, radius, recycle, false);
+    }
+
+    /**
+     * Return the blur bitmap fast.
+     * <p>zoom out, blur, zoom in</p>
+     *
+     * @param src           The source of bitmap.
+     * @param scale         The scale(0...1).
+     * @param radius        The radius(0...25).
+     * @param recycle       True to recycle the source of bitmap, false otherwise.
+     * @param isReturnScale True to return the scale blur bitmap, false otherwise.
+     * @return the blur bitmap
+     */
+    public static Bitmap fastBlur(final Bitmap src,
+                                  @FloatRange(
+                                          from = 0, to = 1, fromInclusive = false
+                                  ) final float scale,
+                                  @FloatRange(
+                                          from = 0, to = 25, fromInclusive = false
+                                  ) final float radius,
+                                  final boolean recycle,
+                                  final boolean isReturnScale) {
+        if (isEmptyBitmap(src)) return null;
+        int width = src.getWidth();
+        int height = src.getHeight();
+        Matrix matrix = new Matrix();
+        matrix.setScale(scale, scale);
+        Bitmap scaleBitmap =
+                Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
+        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.ANTI_ALIAS_FLAG);
+        Canvas canvas = new Canvas();
+        PorterDuffColorFilter filter = new PorterDuffColorFilter(
+                Color.TRANSPARENT, PorterDuff.Mode.SRC_ATOP);
+        paint.setColorFilter(filter);
+        canvas.scale(scale, scale);
+        canvas.drawBitmap(scaleBitmap, 0, 0, paint);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            scaleBitmap = renderScriptBlur(scaleBitmap, radius, recycle);
+        } else {
+            scaleBitmap = stackBlur(scaleBitmap, (int) radius, recycle);
+        }
+        if (scale == 1 || isReturnScale) {
+            if (recycle && !src.isRecycled() && scaleBitmap != src) src.recycle();
+            return scaleBitmap;
+        }
+        Bitmap ret = Bitmap.createScaledBitmap(scaleBitmap, width, height, true);
+        if (!scaleBitmap.isRecycled()) scaleBitmap.recycle();
+        if (recycle && !src.isRecycled() && ret != src) src.recycle();
+        return ret;
+    }
+
+    /**
+     * Return the blur bitmap using render script.
+     *
+     * @param src    The source of bitmap.
+     * @param radius The radius(0...25).
+     * @return the blur bitmap
+     */
+    @RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static Bitmap renderScriptBlur(final Bitmap src,
+                                          @FloatRange(
+                                                  from = 0, to = 25, fromInclusive = false
+                                          ) final float radius) {
+        return renderScriptBlur(src, radius, false);
+    }
+
+    /**
+     * Return the blur bitmap using render script.
+     *
+     * @param src     The source of bitmap.
+     * @param radius  The radius(0...25).
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the blur bitmap
+     */
+    @RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static Bitmap renderScriptBlur(final Bitmap src,
+                                          @FloatRange(
+                                                  from = 0, to = 25, fromInclusive = false
+                                          ) final float radius,
+                                          final boolean recycle) {
+        RenderScript rs = null;
+        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
+        try {
+            rs = RenderScript.create(Utils.getApp());
+            rs.setMessageHandler(new RenderScript.RSMessageHandler());
+            Allocation input = Allocation.createFromBitmap(rs,
+                    ret,
+                    Allocation.MipmapControl.MIPMAP_NONE,
+                    Allocation.USAGE_SCRIPT);
+            Allocation output = Allocation.createTyped(rs, input.getType());
+            ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
+            blurScript.setInput(input);
+            blurScript.setRadius(radius);
+            blurScript.forEach(output);
+            output.copyTo(ret);
+        } finally {
+            if (rs != null) {
+                rs.destroy();
+            }
+        }
+        return ret;
+    }
+
+    /**
+     * Return the blur bitmap using stack.
+     *
+     * @param src    The source of bitmap.
+     * @param radius The radius(0...25).
+     * @return the blur bitmap
+     */
+    public static Bitmap stackBlur(final Bitmap src, final int radius) {
+        return stackBlur(src, radius, false);
+    }
+
+    /**
+     * Return the blur bitmap using stack.
+     *
+     * @param src     The source of bitmap.
+     * @param radius  The radius(0...25).
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the blur bitmap
+     */
+    public static Bitmap stackBlur(final Bitmap src, int radius, final boolean recycle) {
+        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
+        if (radius < 1) {
+            radius = 1;
+        }
+        int w = ret.getWidth();
+        int h = ret.getHeight();
+
+        int[] pix = new int[w * h];
+        ret.getPixels(pix, 0, w, 0, 0, w, h);
+
+        int wm = w - 1;
+        int hm = h - 1;
+        int wh = w * h;
+        int div = radius + radius + 1;
+
+        int r[] = new int[wh];
+        int g[] = new int[wh];
+        int b[] = new int[wh];
+        int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
+        int vmin[] = new int[Math.max(w, h)];
+
+        int divsum = (div + 1) >> 1;
+        divsum *= divsum;
+        int dv[] = new int[256 * divsum];
+        for (i = 0; i < 256 * divsum; i++) {
+            dv[i] = (i / divsum);
+        }
+
+        yw = yi = 0;
+
+        int[][] stack = new int[div][3];
+        int stackpointer;
+        int stackstart;
+        int[] sir;
+        int rbs;
+        int r1 = radius + 1;
+        int routsum, goutsum, boutsum;
+        int rinsum, ginsum, binsum;
+
+        for (y = 0; y < h; y++) {
+            rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
+            for (i = -radius; i <= radius; i++) {
+                p = pix[yi + Math.min(wm, Math.max(i, 0))];
+                sir = stack[i + radius];
+                sir[0] = (p & 0xff0000) >> 16;
+                sir[1] = (p & 0x00ff00) >> 8;
+                sir[2] = (p & 0x0000ff);
+                rbs = r1 - Math.abs(i);
+                rsum += sir[0] * rbs;
+                gsum += sir[1] * rbs;
+                bsum += sir[2] * rbs;
+                if (i > 0) {
+                    rinsum += sir[0];
+                    ginsum += sir[1];
+                    binsum += sir[2];
+                } else {
+                    routsum += sir[0];
+                    goutsum += sir[1];
+                    boutsum += sir[2];
+                }
+            }
+            stackpointer = radius;
+
+            for (x = 0; x < w; x++) {
+
+                r[yi] = dv[rsum];
+                g[yi] = dv[gsum];
+                b[yi] = dv[bsum];
+
+                rsum -= routsum;
+                gsum -= goutsum;
+                bsum -= boutsum;
+
+                stackstart = stackpointer - radius + div;
+                sir = stack[stackstart % div];
+
+                routsum -= sir[0];
+                goutsum -= sir[1];
+                boutsum -= sir[2];
+
+                if (y == 0) {
+                    vmin[x] = Math.min(x + radius + 1, wm);
+                }
+                p = pix[yw + vmin[x]];
+
+                sir[0] = (p & 0xff0000) >> 16;
+                sir[1] = (p & 0x00ff00) >> 8;
+                sir[2] = (p & 0x0000ff);
+
+                rinsum += sir[0];
+                ginsum += sir[1];
+                binsum += sir[2];
+
+                rsum += rinsum;
+                gsum += ginsum;
+                bsum += binsum;
+
+                stackpointer = (stackpointer + 1) % div;
+                sir = stack[(stackpointer) % div];
+
+                routsum += sir[0];
+                goutsum += sir[1];
+                boutsum += sir[2];
+
+                rinsum -= sir[0];
+                ginsum -= sir[1];
+                binsum -= sir[2];
+
+                yi++;
+            }
+            yw += w;
+        }
+        for (x = 0; x < w; x++) {
+            rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
+            yp = -radius * w;
+            for (i = -radius; i <= radius; i++) {
+                yi = Math.max(0, yp) + x;
+
+                sir = stack[i + radius];
+
+                sir[0] = r[yi];
+                sir[1] = g[yi];
+                sir[2] = b[yi];
+
+                rbs = r1 - Math.abs(i);
+
+                rsum += r[yi] * rbs;
+                gsum += g[yi] * rbs;
+                bsum += b[yi] * rbs;
+
+                if (i > 0) {
+                    rinsum += sir[0];
+                    ginsum += sir[1];
+                    binsum += sir[2];
+                } else {
+                    routsum += sir[0];
+                    goutsum += sir[1];
+                    boutsum += sir[2];
+                }
+
+                if (i < hm) {
+                    yp += w;
+                }
+            }
+            yi = x;
+            stackpointer = radius;
+            for (y = 0; y < h; y++) {
+                // Preserve alpha channel: ( 0xff000000 & pix[yi] )
+                pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];
+
+                rsum -= routsum;
+                gsum -= goutsum;
+                bsum -= boutsum;
+
+                stackstart = stackpointer - radius + div;
+                sir = stack[stackstart % div];
+
+                routsum -= sir[0];
+                goutsum -= sir[1];
+                boutsum -= sir[2];
+
+                if (x == 0) {
+                    vmin[y] = Math.min(y + r1, hm) * w;
+                }
+                p = x + vmin[y];
+
+                sir[0] = r[p];
+                sir[1] = g[p];
+                sir[2] = b[p];
+
+                rinsum += sir[0];
+                ginsum += sir[1];
+                binsum += sir[2];
+
+                rsum += rinsum;
+                gsum += ginsum;
+                bsum += binsum;
+
+                stackpointer = (stackpointer + 1) % div;
+                sir = stack[stackpointer];
+
+                routsum += sir[0];
+                goutsum += sir[1];
+                boutsum += sir[2];
+
+                rinsum -= sir[0];
+                ginsum -= sir[1];
+                binsum -= sir[2];
+
+                yi += w;
+            }
+        }
+        ret.setPixels(pix, 0, w, 0, 0, w, h);
+        return ret;
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src      The source of bitmap.
+     * @param filePath The path of file.
+     * @param format   The format of the image.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final String filePath,
+                               final CompressFormat format) {
+        return save(src, filePath, format, 100, false);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src    The source of bitmap.
+     * @param file   The file.
+     * @param format The format of the image.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src, final File file, final CompressFormat format) {
+        return save(src, file, format, 100, false);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src      The source of bitmap.
+     * @param filePath The path of file.
+     * @param format   The format of the image.
+     * @param recycle  True to recycle the source of bitmap, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final String filePath,
+                               final CompressFormat format,
+                               final boolean recycle) {
+        return save(src, filePath, format, 100, recycle);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param file    The file.
+     * @param format  The format of the image.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final File file,
+                               final CompressFormat format,
+                               final boolean recycle) {
+        return save(src, file, format, 100, recycle);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src      The source of bitmap.
+     * @param filePath The path of file.
+     * @param format   The format of the image.
+     * @param quality  Hint to the compressor, 0-100. 0 meaning compress for
+     *                 small size, 100 meaning compress for max quality. Some
+     *                 formats, like PNG which is lossless, will ignore the
+     *                 quality setting
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final String filePath,
+                               final CompressFormat format,
+                               final int quality) {
+        return save(src, UtilsBridge.getFileByPath(filePath), format, quality, false);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src    The source of bitmap.
+     * @param file   The file.
+     * @param format The format of the image.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final File file,
+                               final CompressFormat format,
+                               final int quality) {
+        return save(src, file, format, quality, false);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src      The source of bitmap.
+     * @param filePath The path of file.
+     * @param format   The format of the image.
+     * @param quality  Hint to the compressor, 0-100. 0 meaning compress for
+     *                 small size, 100 meaning compress for max quality. Some
+     *                 formats, like PNG which is lossless, will ignore the
+     *                 quality setting
+     * @param recycle  True to recycle the source of bitmap, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final String filePath,
+                               final CompressFormat format,
+                               final int quality,
+                               final boolean recycle) {
+        return save(src, UtilsBridge.getFileByPath(filePath), format, quality, recycle);
+    }
+
+    /**
+     * Save the bitmap.
+     *
+     * @param src     The source of bitmap.
+     * @param file    The file.
+     * @param format  The format of the image.
+     * @param quality Hint to the compressor, 0-100. 0 meaning compress for
+     *                small size, 100 meaning compress for max quality. Some
+     *                formats, like PNG which is lossless, will ignore the
+     *                quality setting
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean save(final Bitmap src,
+                               final File file,
+                               final CompressFormat format,
+                               final int quality,
+                               final boolean recycle) {
+        if (isEmptyBitmap(src)) {
+            Log.e("ImageUtils", "bitmap is empty.");
+            return false;
+        }
+        if (src.isRecycled()) {
+            Log.e("ImageUtils", "bitmap is recycled.");
+            return false;
+        }
+        if (!UtilsBridge.createFileByDeleteOldFile(file)) {
+            Log.e("ImageUtils", "create or delete file <" + file + "> failed.");
+            return false;
+        }
+        OutputStream os = null;
+        boolean ret = false;
+        try {
+            os = new BufferedOutputStream(new FileOutputStream(file));
+            ret = src.compress(format, quality, os);
+            if (recycle && !src.isRecycled()) src.recycle();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (os != null) {
+                    os.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return ret;
+    }
+
+    /**
+     * @param src    The source of bitmap.
+     * @param format The format of the image.
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final CompressFormat format) {
+        return save2Album(src, "", format, 100, false);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param format  The format of the image.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final CompressFormat format,
+                                  final boolean recycle) {
+        return save2Album(src, "", format, 100, recycle);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param format  The format of the image.
+     * @param quality Hint to the compressor, 0-100. 0 meaning compress for
+     *                small size, 100 meaning compress for max quality. Some
+     *                formats, like PNG which is lossless, will ignore the
+     *                quality setting
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final CompressFormat format,
+                                  final int quality) {
+        return save2Album(src, "", format, quality, false);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param format  The format of the image.
+     * @param quality Hint to the compressor, 0-100. 0 meaning compress for
+     *                small size, 100 meaning compress for max quality. Some
+     *                formats, like PNG which is lossless, will ignore the
+     *                quality setting
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final CompressFormat format,
+                                  final int quality,
+                                  final boolean recycle) {
+        return save2Album(src, "", format, quality, recycle);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param dirName The name of directory.
+     * @param format  The format of the image.
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final String dirName,
+                                  final CompressFormat format) {
+        return save2Album(src, dirName, format, 100, false);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param dirName The name of directory.
+     * @param format  The format of the image.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final String dirName,
+                                  final CompressFormat format,
+                                  final boolean recycle) {
+        return save2Album(src, dirName, format, 100, recycle);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param dirName The name of directory.
+     * @param format  The format of the image.
+     * @param quality Hint to the compressor, 0-100. 0 meaning compress for
+     *                small size, 100 meaning compress for max quality. Some
+     *                formats, like PNG which is lossless, will ignore the
+     *                quality setting
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final String dirName,
+                                  final CompressFormat format,
+                                  final int quality) {
+        return save2Album(src, dirName, format, quality, false);
+    }
+
+    /**
+     * @param src     The source of bitmap.
+     * @param dirName The name of directory.
+     * @param format  The format of the image.
+     * @param quality Hint to the compressor, 0-100. 0 meaning compress for
+     *                small size, 100 meaning compress for max quality. Some
+     *                formats, like PNG which is lossless, will ignore the
+     *                quality setting
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the file if save success, otherwise return null.
+     */
+    @Nullable
+    public static File save2Album(final Bitmap src,
+                                  final String dirName,
+                                  final CompressFormat format,
+                                  final int quality,
+                                  final boolean recycle) {
+        String safeDirName = TextUtils.isEmpty(dirName) ? Utils.getApp().getPackageName() : dirName;
+        String suffix = CompressFormat.JPEG.equals(format) ? "JPG" : format.name();
+        String fileName = System.currentTimeMillis() + "_" + quality + "." + suffix;
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+            if (!UtilsBridge.isGranted(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
+                Log.e("ImageUtils", "save to album need storage permission");
+                return null;
+            }
+            File picDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
+            File destFile = new File(picDir, safeDirName + "/" + fileName);
+            if (!save(src, destFile, format, quality, recycle)) {
+                return null;
+            }
+            UtilsBridge.notifySystemToScan(destFile);
+            return destFile;
+        } else {
+            ContentValues contentValues = new ContentValues();
+            contentValues.put(MediaStore.Images.Media.DISPLAY_NAME, fileName);
+            contentValues.put(MediaStore.Images.Media.MIME_TYPE, "image/*");
+            Uri contentUri;
+            if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
+                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
+            } else {
+                contentUri = MediaStore.Images.Media.INTERNAL_CONTENT_URI;
+            }
+            contentValues.put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_DCIM + "/" + safeDirName);
+            contentValues.put(MediaStore.MediaColumns.IS_PENDING, 1);
+            Uri uri = Utils.getApp().getContentResolver().insert(contentUri, contentValues);
+            if (uri == null) {
+                return null;
+            }
+            OutputStream os = null;
+            try {
+                os = Utils.getApp().getContentResolver().openOutputStream(uri);
+                src.compress(format, quality, os);
+
+                contentValues.clear();
+                contentValues.put(MediaStore.MediaColumns.IS_PENDING, 0);
+                Utils.getApp().getContentResolver().update(uri, contentValues, null, null);
+
+                return UtilsBridge.uri2File(uri);
+            } catch (Exception e) {
+                Utils.getApp().getContentResolver().delete(uri, null, null);
+                e.printStackTrace();
+                return null;
+            } finally {
+                try {
+                    if (os != null) {
+                        os.close();
+                    }
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * Return whether it is a image according to the file name.
+     *
+     * @param file The file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isImage(final File file) {
+        if (file == null || !file.exists()) {
+            return false;
+        }
+        return isImage(file.getPath());
+    }
+
+    /**
+     * Return whether it is a image according to the file name.
+     *
+     * @param filePath The path of file.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isImage(final String filePath) {
+        try {
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = true;
+            BitmapFactory.decodeFile(filePath, options);
+            return options.outWidth > 0 && options.outHeight > 0;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /**
+     * Return the type of image.
+     *
+     * @param filePath The path of file.
+     * @return the type of image
+     */
+    public static ImageType getImageType(final String filePath) {
+        return getImageType(UtilsBridge.getFileByPath(filePath));
+    }
+
+    /**
+     * Return the type of image.
+     *
+     * @param file The file.
+     * @return the type of image
+     */
+    public static ImageType getImageType(final File file) {
+        if (file == null) return null;
+        InputStream is = null;
+        try {
+            is = new FileInputStream(file);
+            ImageType type = getImageType(is);
+            if (type != null) {
+                return type;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (is != null) {
+                    is.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return null;
+    }
+
+    private static ImageType getImageType(final InputStream is) {
+        if (is == null) return null;
+        try {
+            byte[] bytes = new byte[12];
+            return is.read(bytes) != -1 ? getImageType(bytes) : null;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private static ImageType getImageType(final byte[] bytes) {
+        String type = UtilsBridge.bytes2HexString(bytes).toUpperCase();
+        if (type.contains("FFD8FF")) {
+            return ImageType.TYPE_JPG;
+        } else if (type.contains("89504E47")) {
+            return ImageType.TYPE_PNG;
+        } else if (type.contains("47494638")) {
+            return ImageType.TYPE_GIF;
+        } else if (type.contains("49492A00") || type.contains("4D4D002A")) {
+            return ImageType.TYPE_TIFF;
+        } else if (type.contains("424D")) {
+            return ImageType.TYPE_BMP;
+        } else if (type.startsWith("52494646") && type.endsWith("57454250")) {//524946461c57000057454250-12个字节
+            return ImageType.TYPE_WEBP;
+        } else if (type.contains("00000100") || type.contains("00000200")) {
+            return ImageType.TYPE_ICO;
+        } else {
+            return ImageType.TYPE_UNKNOWN;
+        }
+    }
+
+    private static boolean isJPEG(final byte[] b) {
+        return b.length >= 2
+                && (b[0] == (byte) 0xFF) && (b[1] == (byte) 0xD8);
+    }
+
+    private static boolean isGIF(final byte[] b) {
+        return b.length >= 6
+                && b[0] == 'G' && b[1] == 'I'
+                && b[2] == 'F' && b[3] == '8'
+                && (b[4] == '7' || b[4] == '9') && b[5] == 'a';
+    }
+
+    private static boolean isPNG(final byte[] b) {
+        return b.length >= 8
+                && (b[0] == (byte) 137 && b[1] == (byte) 80
+                && b[2] == (byte) 78 && b[3] == (byte) 71
+                && b[4] == (byte) 13 && b[5] == (byte) 10
+                && b[6] == (byte) 26 && b[7] == (byte) 10);
+    }
+
+    private static boolean isBMP(final byte[] b) {
+        return b.length >= 2
+                && (b[0] == 0x42) && (b[1] == 0x4d);
+    }
+
+    private static boolean isEmptyBitmap(final Bitmap src) {
+        return src == null || src.getWidth() == 0 || src.getHeight() == 0;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // about compress
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Return the compressed bitmap using scale.
+     *
+     * @param src       The source of bitmap.
+     * @param newWidth  The new width.
+     * @param newHeight The new height.
+     * @return the compressed bitmap
+     */
+    public static Bitmap compressByScale(final Bitmap src,
+                                         final int newWidth,
+                                         final int newHeight) {
+        return scale(src, newWidth, newHeight, false);
+    }
+
+    /**
+     * Return the compressed bitmap using scale.
+     *
+     * @param src       The source of bitmap.
+     * @param newWidth  The new width.
+     * @param newHeight The new height.
+     * @param recycle   True to recycle the source of bitmap, false otherwise.
+     * @return the compressed bitmap
+     */
+    public static Bitmap compressByScale(final Bitmap src,
+                                         final int newWidth,
+                                         final int newHeight,
+                                         final boolean recycle) {
+        return scale(src, newWidth, newHeight, recycle);
+    }
+
+    /**
+     * Return the compressed bitmap using scale.
+     *
+     * @param src         The source of bitmap.
+     * @param scaleWidth  The scale of width.
+     * @param scaleHeight The scale of height.
+     * @return the compressed bitmap
+     */
+    public static Bitmap compressByScale(final Bitmap src,
+                                         final float scaleWidth,
+                                         final float scaleHeight) {
+        return scale(src, scaleWidth, scaleHeight, false);
+    }
+
+    /**
+     * Return the compressed bitmap using scale.
+     *
+     * @param src         The source of bitmap.
+     * @param scaleWidth  The scale of width.
+     * @param scaleHeight The scale of height.
+     * @param recycle     True to recycle the source of bitmap, false otherwise.
+     * @return he compressed bitmap
+     */
+    public static Bitmap compressByScale(final Bitmap src,
+                                         final float scaleWidth,
+                                         final float scaleHeight,
+                                         final boolean recycle) {
+        return scale(src, scaleWidth, scaleHeight, recycle);
+    }
+
+    /**
+     * Return the compressed data using quality.
+     *
+     * @param src     The source of bitmap.
+     * @param quality The quality.
+     * @return the compressed data using quality
+     */
+    public static byte[] compressByQuality(final Bitmap src,
+                                           @IntRange(from = 0, to = 100) final int quality) {
+        return compressByQuality(src, quality, false);
+    }
+
+    /**
+     * Return the compressed data using quality.
+     *
+     * @param src     The source of bitmap.
+     * @param quality The quality.
+     * @param recycle True to recycle the source of bitmap, false otherwise.
+     * @return the compressed data using quality
+     */
+    public static byte[] compressByQuality(final Bitmap src,
+                                           @IntRange(from = 0, to = 100) final int quality,
+                                           final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        src.compress(Bitmap.CompressFormat.JPEG, quality, baos);
+        byte[] bytes = baos.toByteArray();
+        if (recycle && !src.isRecycled()) src.recycle();
+        return bytes;
+    }
+
+    /**
+     * Return the compressed data using quality.
+     *
+     * @param src         The source of bitmap.
+     * @param maxByteSize The maximum size of byte.
+     * @return the compressed data using quality
+     */
+    public static byte[] compressByQuality(final Bitmap src, final long maxByteSize) {
+        return compressByQuality(src, maxByteSize, false);
+    }
+
+    /**
+     * Return the compressed data using quality.
+     *
+     * @param src         The source of bitmap.
+     * @param maxByteSize The maximum size of byte.
+     * @param recycle     True to recycle the source of bitmap, false otherwise.
+     * @return the compressed data using quality
+     */
+    public static byte[] compressByQuality(final Bitmap src,
+                                           final long maxByteSize,
+                                           final boolean recycle) {
+        if (isEmptyBitmap(src) || maxByteSize <= 0) return new byte[0];
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        src.compress(CompressFormat.JPEG, 100, baos);
+        byte[] bytes;
+        if (baos.size() <= maxByteSize) {
+            bytes = baos.toByteArray();
+        } else {
+            baos.reset();
+            src.compress(CompressFormat.JPEG, 0, baos);
+            if (baos.size() >= maxByteSize) {
+                bytes = baos.toByteArray();
+            } else {
+                // find the best quality using binary search
+                int st = 0;
+                int end = 100;
+                int mid = 0;
+                while (st < end) {
+                    mid = (st + end) / 2;
+                    baos.reset();
+                    src.compress(CompressFormat.JPEG, mid, baos);
+                    int len = baos.size();
+                    if (len == maxByteSize) {
+                        break;
+                    } else if (len > maxByteSize) {
+                        end = mid - 1;
+                    } else {
+                        st = mid + 1;
+                    }
+                }
+                if (end == mid - 1) {
+                    baos.reset();
+                    src.compress(CompressFormat.JPEG, st, baos);
+                }
+                bytes = baos.toByteArray();
+            }
+        }
+        if (recycle && !src.isRecycled()) src.recycle();
+        return bytes;
+    }
+
+    /**
+     * Return the compressed bitmap using sample size.
+     *
+     * @param src        The source of bitmap.
+     * @param sampleSize The sample size.
+     * @return the compressed bitmap
+     */
+
+    public static Bitmap compressBySampleSize(final Bitmap src, final int sampleSize) {
+        return compressBySampleSize(src, sampleSize, false);
+    }
+
+    /**
+     * Return the compressed bitmap using sample size.
+     *
+     * @param src        The source of bitmap.
+     * @param sampleSize The sample size.
+     * @param recycle    True to recycle the source of bitmap, false otherwise.
+     * @return the compressed bitmap
+     */
+    public static Bitmap compressBySampleSize(final Bitmap src,
+                                              final int sampleSize,
+                                              final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inSampleSize = sampleSize;
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
+        byte[] bytes = baos.toByteArray();
+        if (recycle && !src.isRecycled()) src.recycle();
+        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
+    }
+
+    /**
+     * Return the compressed bitmap using sample size.
+     *
+     * @param src       The source of bitmap.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return the compressed bitmap
+     */
+    public static Bitmap compressBySampleSize(final Bitmap src,
+                                              final int maxWidth,
+                                              final int maxHeight) {
+        return compressBySampleSize(src, maxWidth, maxHeight, false);
+    }
+
+    /**
+     * Return the compressed bitmap using sample size.
+     *
+     * @param src       The source of bitmap.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @param recycle   True to recycle the source of bitmap, false otherwise.
+     * @return the compressed bitmap
+     */
+    public static Bitmap compressBySampleSize(final Bitmap src,
+                                              final int maxWidth,
+                                              final int maxHeight,
+                                              final boolean recycle) {
+        if (isEmptyBitmap(src)) return null;
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
+        byte[] bytes = baos.toByteArray();
+        BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
+        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
+        options.inJustDecodeBounds = false;
+        if (recycle && !src.isRecycled()) src.recycle();
+        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
+    }
+
+    /**
+     * Return the size of bitmap.
+     *
+     * @param filePath The path of file.
+     * @return the size of bitmap
+     */
+    public static int[] getSize(String filePath) {
+        return getSize(UtilsBridge.getFileByPath(filePath));
+    }
+
+    /**
+     * Return the size of bitmap.
+     *
+     * @param file The file.
+     * @return the size of bitmap
+     */
+    public static int[] getSize(File file) {
+        if (file == null) return new int[]{0, 0};
+        BitmapFactory.Options opts = new BitmapFactory.Options();
+        opts.inJustDecodeBounds = true;
+        BitmapFactory.decodeFile(file.getAbsolutePath(), opts);
+        return new int[]{opts.outWidth, opts.outHeight};
+    }
+
+    /**
+     * Return the sample size.
+     *
+     * @param options   The options.
+     * @param maxWidth  The maximum width.
+     * @param maxHeight The maximum height.
+     * @return the sample size
+     */
+    public static int calculateInSampleSize(final BitmapFactory.Options options,
+                                            final int maxWidth,
+                                            final int maxHeight) {
+        int height = options.outHeight;
+        int width = options.outWidth;
+        int inSampleSize = 1;
+        while (height > maxHeight || width > maxWidth) {
+            height >>= 1;
+            width >>= 1;
+            inSampleSize <<= 1;
+        }
+        return inSampleSize;
+    }
+
+    public enum ImageType {
+        TYPE_JPG("jpg"),
+
+        TYPE_PNG("png"),
+
+        TYPE_GIF("gif"),
+
+        TYPE_TIFF("tiff"),
+
+        TYPE_BMP("bmp"),
+
+        TYPE_WEBP("webp"),
+
+        TYPE_ICO("ico"),
+
+        TYPE_UNKNOWN("unknown");
+
+        String value;
+
+        ImageType(String value) {
+            this.value = value;
+        }
+
+        public String getValue() {
+            return value;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java
new file mode 100644
index 0000000000..a5009c3cba
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java
@@ -0,0 +1,538 @@
+package com.blankj.utilcode.util;
+
+import android.content.ComponentName;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.provider.MediaStore;
+import android.provider.Settings;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresPermission;
+import androidx.core.content.FileProvider;
+
+import static android.Manifest.permission.CALL_PHONE;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/23
+ *     desc  : utils about intent
+ * </pre>
+ */
+public final class IntentUtils {
+
+    private IntentUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether the intent is available.
+     *
+     * @param intent The intent.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isIntentAvailable(final Intent intent) {
+        return Utils.getApp()
+                .getPackageManager()
+                .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
+                .size() > 0;
+    }
+
+    /**
+     * Return the intent of install app.
+     * <p>Target APIs greater than 25 must hold
+     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
+     *
+     * @param filePath The path of file.
+     * @return the intent of install app
+     */
+    public static Intent getInstallAppIntent(final String filePath) {
+        return getInstallAppIntent(UtilsBridge.getFileByPath(filePath));
+    }
+
+    /**
+     * Return the intent of install app.
+     * <p>Target APIs greater than 25 must hold
+     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
+     *
+     * @param file The file.
+     * @return the intent of install app
+     */
+    public static Intent getInstallAppIntent(final File file) {
+        if (!UtilsBridge.isFileExists(file)) return null;
+        Uri uri;
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
+            uri = Uri.fromFile(file);
+        } else {
+            String authority = Utils.getApp().getPackageName() + ".utilcode.fileprovider";
+            uri = FileProvider.getUriForFile(Utils.getApp(), authority, file);
+        }
+        return getInstallAppIntent(uri);
+    }
+
+    /**
+     * Return the intent of install app.
+     * <p>Target APIs greater than 25 must hold
+     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
+     *
+     * @param uri The uri.
+     * @return the intent of install app
+     */
+    public static Intent getInstallAppIntent(final Uri uri) {
+        if (uri == null) return null;
+        Intent intent = new Intent(Intent.ACTION_VIEW);
+        String type = "application/vnd.android.package-archive";
+        intent.setDataAndType(uri, type);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        }
+        return intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+    }
+
+    /**
+     * Return the intent of uninstall app.
+     * <p>Target APIs greater than 25 must hold
+     * Must hold {@code <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />}</p>
+     *
+     * @param pkgName The name of the package.
+     * @return the intent of uninstall app
+     */
+    public static Intent getUninstallAppIntent(final String pkgName) {
+        Intent intent = new Intent(Intent.ACTION_DELETE);
+        intent.setData(Uri.parse("package:" + pkgName));
+        return intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+    }
+
+    /**
+     * Return the intent of launch app.
+     *
+     * @param pkgName The name of the package.
+     * @return the intent of launch app
+     */
+    public static Intent getLaunchAppIntent(final String pkgName) {
+        String launcherActivity = UtilsBridge.getLauncherActivity(pkgName);
+        if (UtilsBridge.isSpace(launcherActivity)) return null;
+        Intent intent = new Intent(Intent.ACTION_MAIN);
+        intent.addCategory(Intent.CATEGORY_LAUNCHER);
+        intent.setClassName(pkgName, launcherActivity);
+        return intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+    }
+
+    /**
+     * Return the intent of launch app details settings.
+     *
+     * @param pkgName The name of the package.
+     * @return the intent of launch app details settings
+     */
+    public static Intent getLaunchAppDetailsSettingsIntent(final String pkgName) {
+        return getLaunchAppDetailsSettingsIntent(pkgName, false);
+    }
+
+    /**
+     * Return the intent of launch app details settings.
+     *
+     * @param pkgName The name of the package.
+     * @return the intent of launch app details settings
+     */
+    public static Intent getLaunchAppDetailsSettingsIntent(final String pkgName, final boolean isNewTask) {
+        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+        intent.setData(Uri.parse("package:" + pkgName));
+        return getIntent(intent, isNewTask);
+    }
+
+    /**
+     * Return the intent of share text.
+     *
+     * @param content The content.
+     * @return the intent of share text
+     */
+    public static Intent getShareTextIntent(final String content) {
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        intent.setType("text/plain");
+        intent.putExtra(Intent.EXTRA_TEXT, content);
+        intent = Intent.createChooser(intent, "");
+        return getIntent(intent, true);
+    }
+
+    /**
+     * Return the intent of share image.
+     *
+     * @param imagePath The path of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareImageIntent(final String imagePath) {
+        return getShareTextImageIntent("", imagePath);
+    }
+
+    /**
+     * Return the intent of share image.
+     *
+     * @param imageFile The file of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareImageIntent(final File imageFile) {
+        return getShareTextImageIntent("", imageFile);
+    }
+
+    /**
+     * Return the intent of share image.
+     *
+     * @param imageUri The uri of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareImageIntent(final Uri imageUri) {
+        return getShareTextImageIntent("", imageUri);
+    }
+
+    /**
+     * Return the intent of share image.
+     *
+     * @param content   The content.
+     * @param imagePath The path of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareTextImageIntent(@Nullable final String content, final String imagePath) {
+        return getShareTextImageIntent(content, UtilsBridge.getFileByPath(imagePath));
+    }
+
+    /**
+     * Return the intent of share image.
+     *
+     * @param content   The content.
+     * @param imageFile The file of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareTextImageIntent(@Nullable final String content, final File imageFile) {
+        return getShareTextImageIntent(content, UtilsBridge.file2Uri(imageFile));
+    }
+
+    /**
+     * Return the intent of share image.
+     *
+     * @param content  The content.
+     * @param imageUri The uri of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareTextImageIntent(@Nullable final String content, final Uri imageUri) {
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        intent.putExtra(Intent.EXTRA_TEXT, content);
+        intent.putExtra(Intent.EXTRA_STREAM, imageUri);
+        intent.setType("image/*");
+        intent = Intent.createChooser(intent, "");
+        return getIntent(intent, true);
+    }
+
+    /**
+     * Return the intent of share images.
+     *
+     * @param imagePaths The paths of images.
+     * @return the intent of share images
+     */
+    public static Intent getShareImageIntent(final LinkedList<String> imagePaths) {
+        return getShareTextImageIntent("", imagePaths);
+    }
+
+    /**
+     * Return the intent of share images.
+     *
+     * @param images The files of images.
+     * @return the intent of share images
+     */
+    public static Intent getShareImageIntent(final List<File> images) {
+        return getShareTextImageIntent("", images);
+    }
+
+    /**
+     * Return the intent of share images.
+     *
+     * @param uris The uris of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareImageIntent(final ArrayList<Uri> uris) {
+        return getShareTextImageIntent("", uris);
+    }
+
+    /**
+     * Return the intent of share images.
+     *
+     * @param content    The content.
+     * @param imagePaths The paths of images.
+     * @return the intent of share images
+     */
+    public static Intent getShareTextImageIntent(@Nullable final String content,
+                                                 final LinkedList<String> imagePaths) {
+        List<File> files = new ArrayList<>();
+        if (imagePaths != null) {
+            for (String imagePath : imagePaths) {
+                File file = UtilsBridge.getFileByPath(imagePath);
+                if (file != null) {
+                    files.add(file);
+                }
+            }
+        }
+        return getShareTextImageIntent(content, files);
+    }
+
+    /**
+     * Return the intent of share images.
+     *
+     * @param content The content.
+     * @param images  The files of images.
+     * @return the intent of share images
+     */
+    public static Intent getShareTextImageIntent(@Nullable final String content, final List<File> images) {
+        ArrayList<Uri> uris = new ArrayList<>();
+        if (images != null) {
+            for (File image : images) {
+                Uri uri = UtilsBridge.file2Uri(image);
+                if (uri != null) {
+                    uris.add(uri);
+                }
+            }
+        }
+        return getShareTextImageIntent(content, uris);
+    }
+
+    /**
+     * Return the intent of share images.
+     *
+     * @param content The content.
+     * @param uris    The uris of image.
+     * @return the intent of share image
+     */
+    public static Intent getShareTextImageIntent(@Nullable final String content, final ArrayList<Uri> uris) {
+        Intent intent = new Intent(Intent.ACTION_SEND_MULTIPLE);
+        intent.putExtra(Intent.EXTRA_TEXT, content);
+        intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
+        intent.setType("image/*");
+        intent = Intent.createChooser(intent, "");
+        return getIntent(intent, true);
+    }
+
+    /**
+     * Return the intent of component.
+     *
+     * @param pkgName   The name of the package.
+     * @param className The name of class.
+     * @return the intent of component
+     */
+    public static Intent getComponentIntent(final String pkgName, final String className) {
+        return getComponentIntent(pkgName, className, null, false);
+    }
+
+    /**
+     * Return the intent of component.
+     *
+     * @param pkgName   The name of the package.
+     * @param className The name of class.
+     * @param isNewTask True to add flag of new task, false otherwise.
+     * @return the intent of component
+     */
+    public static Intent getComponentIntent(final String pkgName,
+                                            final String className,
+                                            final boolean isNewTask) {
+        return getComponentIntent(pkgName, className, null, isNewTask);
+    }
+
+    /**
+     * Return the intent of component.
+     *
+     * @param pkgName   The name of the package.
+     * @param className The name of class.
+     * @param bundle    The Bundle of extras to add to this intent.
+     * @return the intent of component
+     */
+    public static Intent getComponentIntent(final String pkgName,
+                                            final String className,
+                                            final Bundle bundle) {
+        return getComponentIntent(pkgName, className, bundle, false);
+    }
+
+    /**
+     * Return the intent of component.
+     *
+     * @param pkgName   The name of the package.
+     * @param className The name of class.
+     * @param bundle    The Bundle of extras to add to this intent.
+     * @param isNewTask True to add flag of new task, false otherwise.
+     * @return the intent of component
+     */
+    public static Intent getComponentIntent(final String pkgName,
+                                            final String className,
+                                            final Bundle bundle,
+                                            final boolean isNewTask) {
+        Intent intent = new Intent();
+        if (bundle != null) intent.putExtras(bundle);
+        ComponentName cn = new ComponentName(pkgName, className);
+        intent.setComponent(cn);
+        return getIntent(intent, isNewTask);
+    }
+
+    /**
+     * Return the intent of shutdown.
+     * <p>Requires root permission
+     * or hold {@code android:sharedUserId="android.uid.system"},
+     * {@code <uses-permission android:name="android.permission.SHUTDOWN" />}
+     * in manifest.</p>
+     *
+     * @return the intent of shutdown
+     */
+    public static Intent getShutdownIntent() {
+        Intent intent;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            intent = new Intent("com.android.internal.intent.action.REQUEST_SHUTDOWN");
+        } else {
+            intent = new Intent("android.intent.action.ACTION_REQUEST_SHUTDOWN");
+        }
+        intent.putExtra("android.intent.extra.KEY_CONFIRM", false);
+        return intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+    }
+
+    /**
+     * Return the intent of dial.
+     *
+     * @param phoneNumber The phone number.
+     * @return the intent of dial
+     */
+    public static Intent getDialIntent(@NonNull final String phoneNumber) {
+        Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + Uri.encode(phoneNumber)));
+        return getIntent(intent, true);
+    }
+
+    /**
+     * Return the intent of call.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.CALL_PHONE" />}</p>
+     *
+     * @param phoneNumber The phone number.
+     * @return the intent of call
+     */
+    @RequiresPermission(CALL_PHONE)
+    public static Intent getCallIntent(@NonNull final String phoneNumber) {
+        Intent intent = new Intent("android.intent.action.CALL", Uri.parse("tel:" + Uri.encode(phoneNumber)));
+        return getIntent(intent, true);
+    }
+
+    /**
+     * Return the intent of send SMS.
+     *
+     * @param phoneNumber The phone number.
+     * @param content     The content of SMS.
+     * @return the intent of send SMS
+     */
+    public static Intent getSendSmsIntent(@NonNull final String phoneNumber, final String content) {
+        Uri uri = Uri.parse("smsto:" + Uri.encode(phoneNumber));
+        Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
+        intent.putExtra("sms_body", content);
+        return getIntent(intent, true);
+    }
+
+    /**
+     * Return the intent of capture.
+     *
+     * @param outUri The uri of output.
+     * @return the intent of capture
+     */
+    public static Intent getCaptureIntent(final Uri outUri) {
+        return getCaptureIntent(outUri, false);
+    }
+
+    /**
+     * Return the intent of capture.
+     *
+     * @param outUri    The uri of output.
+     * @param isNewTask True to add flag of new task, false otherwise.
+     * @return the intent of capture
+     */
+    public static Intent getCaptureIntent(final Uri outUri, final boolean isNewTask) {
+        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+        intent.putExtra(MediaStore.EXTRA_OUTPUT, outUri);
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        return getIntent(intent, isNewTask);
+    }
+
+    private static Intent getIntent(final Intent intent, final boolean isNewTask) {
+        return isNewTask ? intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) : intent;
+    }
+
+//    /**
+//     * 获取选择照片的 Intent
+//     *
+//     * @return
+//     */
+//    public static Intent getPickIntentWithGallery() {
+//        Intent intent = new Intent(Intent.ACTION_PICK);
+//        return intent.setType("image*//*");
+//    }
+//
+//    /**
+//     * 获取从文件中选择照片的 Intent
+//     *
+//     * @return
+//     */
+//    public static Intent getPickIntentWithDocuments() {
+//        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+//        return intent.setType("image*//*");
+//    }
+//
+//
+//    public static Intent buildImageGetIntent(final Uri saveTo, final int outputX, final int outputY, final boolean returnData) {
+//        return buildImageGetIntent(saveTo, 1, 1, outputX, outputY, returnData);
+//    }
+//
+//    public static Intent buildImageGetIntent(Uri saveTo, int aspectX, int aspectY,
+//                                             int outputX, int outputY, boolean returnData) {
+//        Intent intent = new Intent();
+//        if (Build.VERSION.SDK_INT < 19) {
+//            intent.setAction(Intent.ACTION_GET_CONTENT);
+//        } else {
+//            intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
+//            intent.addCategory(Intent.CATEGORY_OPENABLE);
+//        }
+//        intent.setType("image*//*");
+//        intent.putExtra("output", saveTo);
+//        intent.putExtra("aspectX", aspectX);
+//        intent.putExtra("aspectY", aspectY);
+//        intent.putExtra("outputX", outputX);
+//        intent.putExtra("outputY", outputY);
+//        intent.putExtra("scale", true);
+//        intent.putExtra("return-data", returnData);
+//        intent.putExtra("outputFormat", Bitmap.CompressFormat.PNG.toString());
+//        return intent;
+//    }
+//
+//    public static Intent buildImageCropIntent(final Uri uriFrom, final Uri uriTo, final int outputX, final int outputY, final boolean returnData) {
+//        return buildImageCropIntent(uriFrom, uriTo, 1, 1, outputX, outputY, returnData);
+//    }
+//
+//    public static Intent buildImageCropIntent(Uri uriFrom, Uri uriTo, int aspectX, int aspectY,
+//                                              int outputX, int outputY, boolean returnData) {
+//        Intent intent = new Intent("com.android.camera.action.CROP");
+//        intent.setDataAndType(uriFrom, "image*//*");
+//        intent.putExtra("crop", "true");
+//        intent.putExtra("output", uriTo);
+//        intent.putExtra("aspectX", aspectX);
+//        intent.putExtra("aspectY", aspectY);
+//        intent.putExtra("outputX", outputX);
+//        intent.putExtra("outputY", outputY);
+//        intent.putExtra("scale", true);
+//        intent.putExtra("return-data", returnData);
+//        intent.putExtra("outputFormat", Bitmap.CompressFormat.PNG.toString());
+//        return intent;
+//    }
+//
+//    public static Intent buildImageCaptureIntent(final Uri uri) {
+//        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+//        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
+//        return intent;
+//    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/JsonUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/JsonUtils.java
new file mode 100644
index 0000000000..43046adf5a
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/JsonUtils.java
@@ -0,0 +1,255 @@
+package com.blankj.utilcode.util;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/07
+ *     desc  : utils about json
+ * </pre>
+ */
+public final class JsonUtils {
+
+    private static final byte TYPE_BOOLEAN     = 0x00;
+    private static final byte TYPE_INT         = 0x01;
+    private static final byte TYPE_LONG        = 0x02;
+    private static final byte TYPE_DOUBLE      = 0x03;
+    private static final byte TYPE_STRING      = 0x04;
+    private static final byte TYPE_JSON_OBJECT = 0x05;
+    private static final byte TYPE_JSON_ARRAY  = 0x06;
+
+    private JsonUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    
+    /**
+     * Checks if a given input is a JSONObject.
+     *
+     * @param input Anything.
+     * @return true if it is a JSONObject.
+     */
+    public static <T> boolean isJSONObject(final T input) {
+        return input instanceof JSONObject;
+    }
+
+    /**
+     * Checks if a given input is a JSONArray
+     *
+     * @param input Anything.
+     * @return true if it is a JSONArray.
+     */
+    public static <T> boolean isJSONArray(final T input) {
+        return input instanceof JSONArray;
+    }
+    
+    public static boolean getBoolean(final JSONObject jsonObject,
+                                     final String key) {
+        return getBoolean(jsonObject, key, false);
+    }
+
+    public static boolean getBoolean(final JSONObject jsonObject,
+                                     final String key,
+                                     final boolean defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_BOOLEAN);
+    }
+
+    public static boolean getBoolean(final String json,
+                                     final String key) {
+        return getBoolean(json, key, false);
+    }
+
+    public static boolean getBoolean(final String json,
+                                     final String key,
+                                     final boolean defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_BOOLEAN);
+    }
+
+    public static int getInt(final JSONObject jsonObject,
+                             final String key) {
+        return getInt(jsonObject, key, -1);
+    }
+
+    public static int getInt(final JSONObject jsonObject,
+                             final String key,
+                             final int defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_INT);
+    }
+
+    public static int getInt(final String json,
+                             final String key) {
+        return getInt(json, key, -1);
+    }
+
+    public static int getInt(final String json,
+                             final String key,
+                             final int defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_INT);
+    }
+
+    public static long getLong(final JSONObject jsonObject,
+                               final String key) {
+        return getLong(jsonObject, key, -1);
+    }
+
+    public static long getLong(final JSONObject jsonObject,
+                               final String key,
+                               final long defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_LONG);
+    }
+
+    public static long getLong(final String json,
+                               final String key) {
+        return getLong(json, key, -1);
+    }
+
+    public static long getLong(final String json,
+                               final String key,
+                               final long defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_LONG);
+    }
+
+    public static double getDouble(final JSONObject jsonObject,
+                                   final String key) {
+        return getDouble(jsonObject, key, -1);
+    }
+
+    public static double getDouble(final JSONObject jsonObject,
+                                   final String key,
+                                   final double defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_DOUBLE);
+    }
+
+    public static double getDouble(final String json,
+                                   final String key) {
+        return getDouble(json, key, -1);
+    }
+
+    public static double getDouble(final String json,
+                                   final String key,
+                                   final double defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_DOUBLE);
+    }
+
+    public static String getString(final JSONObject jsonObject,
+                                   final String key) {
+        return getString(jsonObject, key, "");
+    }
+
+    public static String getString(final JSONObject jsonObject,
+                                   final String key,
+                                   final String defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_STRING);
+    }
+
+    public static String getString(final String json,
+                                   final String key) {
+        return getString(json, key, "");
+    }
+
+    public static String getString(final String json,
+                                   final String key,
+                                   final String defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_STRING);
+    }
+
+    public static JSONObject getJSONObject(final JSONObject jsonObject,
+                                           final String key,
+                                           final JSONObject defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_JSON_OBJECT);
+    }
+
+    public static JSONObject getJSONObject(final String json,
+                                           final String key,
+                                           final JSONObject defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_JSON_OBJECT);
+    }
+
+    public static JSONArray getJSONArray(final JSONObject jsonObject,
+                                         final String key,
+                                         final JSONArray defaultValue) {
+        return getValueByType(jsonObject, key, defaultValue, TYPE_JSON_ARRAY);
+    }
+
+    public static JSONArray getJSONArray(final String json,
+                                         final String key,
+                                         final JSONArray defaultValue) {
+        return getValueByType(json, key, defaultValue, TYPE_JSON_ARRAY);
+    }
+
+    private static <T> T getValueByType(final JSONObject jsonObject,
+                                        final String key,
+                                        final T defaultValue,
+                                        final byte type) {
+        if (jsonObject == null || key == null || key.length() == 0) {
+            return defaultValue;
+        }
+        try {
+            Object ret;
+            if (type == TYPE_BOOLEAN) {
+                ret = jsonObject.getBoolean(key);
+            } else if (type == TYPE_INT) {
+                ret = jsonObject.getInt(key);
+            } else if (type == TYPE_LONG) {
+                ret = jsonObject.getLong(key);
+            } else if (type == TYPE_DOUBLE) {
+                ret = jsonObject.getDouble(key);
+            } else if (type == TYPE_STRING) {
+                ret = jsonObject.getString(key);
+            } else if (type == TYPE_JSON_OBJECT) {
+                ret = jsonObject.getJSONObject(key);
+            } else if (type == TYPE_JSON_ARRAY) {
+                ret = jsonObject.getJSONArray(key);
+            } else {
+                return defaultValue;
+            }
+            //noinspection unchecked
+            return (T) ret;
+        } catch (JSONException e) {
+            e.printStackTrace();
+            return defaultValue;
+        }
+    }
+
+    private static <T> T getValueByType(final String json,
+                                        final String key,
+                                        final T defaultValue,
+                                        final byte type) {
+        if (json == null || json.length() == 0
+                || key == null || key.length() == 0) {
+            return defaultValue;
+        }
+        try {
+            return getValueByType(new JSONObject(json), key, defaultValue, type);
+        } catch (JSONException e) {
+            e.printStackTrace();
+            return defaultValue;
+        }
+    }
+
+    public static String formatJson(final String json) {
+        return formatJson(json, 4);
+    }
+
+    public static String formatJson(final String json, final int indentSpaces) {
+        try {
+            for (int i = 0, len = json.length(); i < len; i++) {
+                char c = json.charAt(i);
+                if (c == '{') {
+                    return new JSONObject(json).toString(indentSpaces);
+                } else if (c == '[') {
+                    return new JSONArray(json).toString(indentSpaces);
+                } else if (!Character.isWhitespace(c)) {
+                    return json;
+                }
+            }
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+        return json;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
new file mode 100644
index 0000000000..e51b3cf891
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
@@ -0,0 +1,405 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Rect;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.ResultReceiver;
+import android.os.SystemClock;
+import android.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewTreeObserver.OnGlobalLayoutListener;
+import android.view.Window;
+import android.view.WindowManager;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+import android.widget.FrameLayout;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import java.lang.reflect.Field;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/02
+ *     desc  : utils about keyboard
+ * </pre>
+ */
+public final class KeyboardUtils {
+
+    private static final int TAG_ON_GLOBAL_LAYOUT_LISTENER = -8;
+
+    private KeyboardUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Show the soft input.
+     */
+    public static void showSoftInput() {
+        InputMethodManager imm =
+            (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
+        if (imm == null) {
+            return;
+        }
+        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
+    }
+
+    /**
+     * Show the soft input.
+     */
+    public static void showSoftInput(@Nullable Activity activity) {
+        if (activity == null) {
+            return;
+        }
+        if (!isSoftInputVisible(activity)) {
+            toggleSoftInput();
+        }
+    }
+
+    /**
+     * Show the soft input.
+     *
+     * @param view The view.
+     */
+    public static void showSoftInput(@NonNull final View view) {
+        showSoftInput(view, 0);
+    }
+
+    /**
+     * Show the soft input.
+     *
+     * @param view The view.
+     * @param flags Provides additional operating flags.  Currently may be
+     * 0 or have the {@link InputMethodManager#SHOW_IMPLICIT} bit set.
+     */
+    public static void showSoftInput(@NonNull final View view, final int flags) {
+        InputMethodManager imm =
+            (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
+        if (imm == null) {
+            return;
+        }
+        view.setFocusable(true);
+        view.setFocusableInTouchMode(true);
+        view.requestFocus();
+        imm.showSoftInput(view, flags, new ResultReceiver(new Handler()) {
+            @Override
+            protected void onReceiveResult(int resultCode, Bundle resultData) {
+                if (resultCode == InputMethodManager.RESULT_UNCHANGED_HIDDEN
+                    || resultCode == InputMethodManager.RESULT_HIDDEN) {
+                    toggleSoftInput();
+                }
+            }
+        });
+        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
+    }
+
+    /**
+     * Hide the soft input.
+     *
+     * @param activity The activity.
+     */
+    public static void hideSoftInput(@Nullable final Activity activity) {
+        if (activity == null) {
+            return;
+        }
+        hideSoftInput(activity.getWindow());
+    }
+
+    /**
+     * Hide the soft input.
+     *
+     * @param window The window.
+     */
+    public static void hideSoftInput(@Nullable final Window window) {
+        if (window == null) {
+            return;
+        }
+        View view = window.getCurrentFocus();
+        if (view == null) {
+            View decorView = window.getDecorView();
+            View focusView = decorView.findViewWithTag("keyboardTagView");
+            if (focusView == null) {
+                view = new EditText(window.getContext());
+                view.setTag("keyboardTagView");
+                ((ViewGroup) decorView).addView(view, 0, 0);
+            } else {
+                view = focusView;
+            }
+            view.requestFocus();
+        }
+        hideSoftInput(view);
+    }
+
+    /**
+     * Hide the soft input.
+     *
+     * @param view The view.
+     */
+    public static void hideSoftInput(@NonNull final View view) {
+        InputMethodManager imm =
+            (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
+        if (imm == null) {
+            return;
+        }
+        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+    }
+
+    private static long millis;
+
+    /**
+     * Hide the soft input.
+     *
+     * @param activity The activity.
+     */
+    public static void hideSoftInputByToggle(@Nullable final Activity activity) {
+        if (activity == null) {
+            return;
+        }
+        long nowMillis = SystemClock.elapsedRealtime();
+        long delta = nowMillis - millis;
+        if (Math.abs(delta) > 500 && KeyboardUtils.isSoftInputVisible(activity)) {
+            KeyboardUtils.toggleSoftInput();
+        }
+        millis = nowMillis;
+    }
+
+    /**
+     * Toggle the soft input display or not.
+     */
+    public static void toggleSoftInput() {
+        InputMethodManager imm =
+            (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
+        if (imm == null) {
+            return;
+        }
+        imm.toggleSoftInput(0, 0);
+    }
+
+    private static int sDecorViewDelta = 0;
+
+    /**
+     * Return whether soft input is visible.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSoftInputVisible(@NonNull final Activity activity) {
+        return getDecorViewInvisibleHeight(activity.getWindow()) > 0;
+    }
+
+    private static int getDecorViewInvisibleHeight(@NonNull final Window window) {
+        final View decorView = window.getDecorView();
+        final Rect outRect = new Rect();
+        decorView.getWindowVisibleDisplayFrame(outRect);
+        Log.d("KeyboardUtils",
+            "getDecorViewInvisibleHeight: " + (decorView.getBottom() - outRect.bottom));
+        int delta = Math.abs(decorView.getBottom() - outRect.bottom);
+        if (delta <= UtilsBridge.getNavBarHeight() + UtilsBridge.getStatusBarHeight()) {
+            sDecorViewDelta = delta;
+            return 0;
+        }
+        return delta - sDecorViewDelta;
+    }
+
+    /**
+     * Register soft input changed listener.
+     *
+     * @param activity The activity.
+     * @param listener The soft input changed listener.
+     */
+    public static void registerSoftInputChangedListener(@NonNull final Activity activity,
+                                                        @NonNull
+                                                        final OnSoftInputChangedListener listener) {
+        registerSoftInputChangedListener(activity.getWindow(), listener);
+    }
+
+    /**
+     * Register soft input changed listener.
+     *
+     * @param window The window.
+     * @param listener The soft input changed listener.
+     */
+    public static void registerSoftInputChangedListener(@NonNull final Window window,
+                                                        @NonNull
+                                                        final OnSoftInputChangedListener listener) {
+        final int flags = window.getAttributes().flags;
+        if ((flags & WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS) != 0) {
+            window.clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+        }
+        final FrameLayout contentView = window.findViewById(android.R.id.content);
+        final int[] decorViewInvisibleHeightPre = { getDecorViewInvisibleHeight(window) };
+        OnGlobalLayoutListener onGlobalLayoutListener = new OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+                int height = getDecorViewInvisibleHeight(window);
+                if (decorViewInvisibleHeightPre[0] != height) {
+                    listener.onSoftInputChanged(height);
+                    decorViewInvisibleHeightPre[0] = height;
+                }
+            }
+        };
+        contentView.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayoutListener);
+        contentView.setTag(TAG_ON_GLOBAL_LAYOUT_LISTENER, onGlobalLayoutListener);
+    }
+
+    /**
+     * Unregister soft input changed listener.
+     *
+     * @param window The window.
+     */
+    public static void unregisterSoftInputChangedListener(@NonNull final Window window) {
+        final View contentView = window.findViewById(android.R.id.content);
+        if (contentView == null) {
+            return;
+        }
+        Object tag = contentView.getTag(TAG_ON_GLOBAL_LAYOUT_LISTENER);
+        if (tag instanceof OnGlobalLayoutListener) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                contentView.getViewTreeObserver().removeOnGlobalLayoutListener((OnGlobalLayoutListener) tag);
+                //这里会发生内存泄漏 如果不设置为null
+                contentView.setTag(TAG_ON_GLOBAL_LAYOUT_LISTENER, null);
+            }
+        }
+    }
+
+    /**
+     * Fix the bug of 5497 in Android.
+     * <p>Don't set adjustResize</p>
+     *
+     * @param activity The activity.
+     */
+    public static void fixAndroidBug5497(@NonNull final Activity activity) {
+        fixAndroidBug5497(activity.getWindow());
+    }
+
+    /**
+     * Fix the bug of 5497 in Android.
+     * <p>It will clean the adjustResize</p>
+     *
+     * @param window The window.
+     */
+    public static void fixAndroidBug5497(@NonNull final Window window) {
+        int softInputMode = window.getAttributes().softInputMode;
+        window.setSoftInputMode(
+            softInputMode & ~WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
+        final FrameLayout contentView = window.findViewById(android.R.id.content);
+        final View contentViewChild = contentView.getChildAt(0);
+        final int paddingBottom = contentViewChild.getPaddingBottom();
+        final int[] contentViewInvisibleHeightPre5497 = { getContentViewInvisibleHeight(window) };
+        contentView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+                int height = getContentViewInvisibleHeight(window);
+                if (contentViewInvisibleHeightPre5497[0] != height) {
+                    contentViewChild.setPadding(contentViewChild.getPaddingLeft(),
+                        contentViewChild.getPaddingTop(), contentViewChild.getPaddingRight(),
+                        paddingBottom + getDecorViewInvisibleHeight(window));
+                    contentViewInvisibleHeightPre5497[0] = height;
+                }
+            }
+        });
+    }
+
+    private static int getContentViewInvisibleHeight(final Window window) {
+        final View contentView = window.findViewById(android.R.id.content);
+        if (contentView == null) {
+            return 0;
+        }
+        final Rect outRect = new Rect();
+        contentView.getWindowVisibleDisplayFrame(outRect);
+        Log.d("KeyboardUtils",
+            "getContentViewInvisibleHeight: " + (contentView.getBottom() - outRect.bottom));
+        int delta = Math.abs(contentView.getBottom() - outRect.bottom);
+        if (delta <= UtilsBridge.getStatusBarHeight() + UtilsBridge.getNavBarHeight()) {
+            return 0;
+        }
+        return delta;
+    }
+
+    /**
+     * Fix the leaks of soft input.
+     *
+     * @param activity The activity.
+     */
+    public static void fixSoftInputLeaks(@NonNull final Activity activity) {
+        fixSoftInputLeaks(activity.getWindow());
+    }
+
+    /**
+     * Fix the leaks of soft input.
+     *
+     * @param window The window.
+     */
+    public static void fixSoftInputLeaks(@NonNull final Window window) {
+        InputMethodManager imm =
+            (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
+        if (imm == null) {
+            return;
+        }
+        String[] leakViews =
+            new String[] { "mLastSrvView", "mCurRootView", "mServedView", "mNextServedView" };
+        for (String leakView : leakViews) {
+            try {
+                Field leakViewField = InputMethodManager.class.getDeclaredField(leakView);
+                if (!leakViewField.isAccessible()) {
+                    leakViewField.setAccessible(true);
+                }
+                Object obj = leakViewField.get(imm);
+                if (!(obj instanceof View)) {
+                    continue;
+                }
+                View view = (View) obj;
+                if (view.getRootView() == window.getDecorView().getRootView()) {
+                    leakViewField.set(imm, null);
+                }
+            } catch (Throwable ignore) {/**/}
+        }
+    }
+
+    /**
+     * Click blank area to hide soft input.
+     * <p>Copy the following code in ur activity.</p>
+     */
+    public static void clickBlankArea2HideSoftInput() {
+        Log.i("KeyboardUtils", "Please refer to the following code.");
+        /*
+        @Override
+        public boolean dispatchTouchEvent(MotionEvent ev) {
+            if (ev.getAction() == MotionEvent.ACTION_DOWN) {
+                View v = getCurrentFocus();
+                if (isShouldHideKeyboard(v, ev)) {
+                    KeyboardUtils.hideSoftInput(this);
+                }
+            }
+            return super.dispatchTouchEvent(ev);
+        }
+
+        // Return whether touch the view.
+        private boolean isShouldHideKeyboard(View v, MotionEvent event) {
+            if ((v instanceof EditText)) {
+                int[] l = {0, 0};
+                v.getLocationOnScreen(l);
+                int left = l[0],
+                        top = l[1],
+                        bottom = top + v.getHeight(),
+                        right = left + v.getWidth();
+                return !(event.getRawX() > left && event.getRawX() < right
+                        && event.getRawY() > top && event.getRawY() < bottom);
+            }
+            return false;
+        }
+        */
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // interface
+    ///////////////////////////////////////////////////////////////////////////
+    public interface OnSoftInputChangedListener {
+        void onSoftInputChanged(int height);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/LanguageUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/LanguageUtils.java
new file mode 100644
index 0000000000..ca463854b2
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/LanguageUtils.java
@@ -0,0 +1,318 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.os.Build;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.util.Locale;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/20
+ *     desc  : utils about language
+ * </pre>
+ */
+public class LanguageUtils {
+
+    private static final String KEY_LOCALE          = "KEY_LOCALE";
+    private static final String VALUE_FOLLOW_SYSTEM = "VALUE_FOLLOW_SYSTEM";
+
+    private LanguageUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Apply the system language.
+     */
+    public static void applySystemLanguage() {
+        applySystemLanguage(false);
+    }
+
+    /**
+     * Apply the system language.
+     *
+     * @param isRelaunchApp True to relaunch app, false to recreate all activities.
+     */
+    public static void applySystemLanguage(final boolean isRelaunchApp) {
+        applyLanguageReal(null, isRelaunchApp);
+    }
+
+    /**
+     * Apply the language.
+     *
+     * @param locale The language of locale.
+     */
+    public static void applyLanguage(@NonNull final Locale locale) {
+        applyLanguage(locale, false);
+    }
+
+    /**
+     * Apply the language.
+     *
+     * @param locale        The language of locale.
+     * @param isRelaunchApp True to relaunch app, false to recreate all activities.
+     */
+    public static void applyLanguage(@NonNull final Locale locale,
+                                     final boolean isRelaunchApp) {
+        applyLanguageReal(locale, isRelaunchApp);
+    }
+
+    private static void applyLanguageReal(final Locale locale,
+                                          final boolean isRelaunchApp) {
+        if (locale == null) {
+            UtilsBridge.getSpUtils4Utils().put(KEY_LOCALE, VALUE_FOLLOW_SYSTEM, true);
+        } else {
+            UtilsBridge.getSpUtils4Utils().put(KEY_LOCALE, locale2String(locale), true);
+        }
+
+        Locale destLocal = locale == null ? getLocal(Resources.getSystem().getConfiguration()) : locale;
+        updateAppContextLanguage(destLocal, new Utils.Consumer<Boolean>() {
+            @Override
+            public void accept(Boolean success) {
+                if (success) {
+                    restart(isRelaunchApp);
+                } else {
+                    // use relaunch app
+                    UtilsBridge.relaunchApp();
+                }
+            }
+        });
+    }
+
+    private static void restart(final boolean isRelaunchApp) {
+        if (isRelaunchApp) {
+            UtilsBridge.relaunchApp();
+        } else {
+            for (Activity activity : UtilsBridge.getActivityList()) {
+                activity.recreate();
+            }
+        }
+    }
+
+    /**
+     * Return whether applied the language by {@link LanguageUtils}.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppliedLanguage() {
+        return getAppliedLanguage() != null;
+    }
+
+    /**
+     * Return whether applied the language by {@link LanguageUtils}.
+     *
+     * @param locale The locale.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAppliedLanguage(@NonNull Locale locale) {
+        Locale appliedLocale = getAppliedLanguage();
+        if (appliedLocale == null) {
+            return false;
+        }
+        return isSameLocale(locale, appliedLocale);
+    }
+
+    /**
+     * Return the applied locale.
+     *
+     * @return the applied locale
+     */
+    public static Locale getAppliedLanguage() {
+        final String spLocaleStr = UtilsBridge.getSpUtils4Utils().getString(KEY_LOCALE);
+        if (TextUtils.isEmpty(spLocaleStr) || VALUE_FOLLOW_SYSTEM.equals(spLocaleStr)) {
+            return null;
+        }
+        return string2Locale(spLocaleStr);
+    }
+
+    /**
+     * Return the locale of context.
+     *
+     * @return the locale of context
+     */
+    public static Locale getContextLanguage(Context context) {
+        return getLocal(context.getResources().getConfiguration());
+    }
+
+    /**
+     * Return the locale of applicationContext.
+     *
+     * @return the locale of applicationContext
+     */
+    public static Locale getAppContextLanguage() {
+        return getContextLanguage(Utils.getApp());
+    }
+
+    /**
+     * Return the locale of system
+     *
+     * @return the locale of system
+     */
+    public static Locale getSystemLanguage() {
+        return getLocal(Resources.getSystem().getConfiguration());
+    }
+
+    /**
+     * Update the locale of applicationContext.
+     *
+     * @param destLocale The dest locale.
+     * @param consumer   The consumer.
+     */
+    public static void updateAppContextLanguage(@NonNull Locale destLocale, @Nullable Utils.Consumer<Boolean> consumer) {
+        pollCheckAppContextLocal(destLocale, 0, consumer);
+    }
+
+    static void pollCheckAppContextLocal(final Locale destLocale, final int index, final Utils.Consumer<Boolean> consumer) {
+        Resources appResources = Utils.getApp().getResources();
+        Configuration appConfig = appResources.getConfiguration();
+        Locale appLocal = getLocal(appConfig);
+
+        setLocal(appConfig, destLocale);
+
+        Utils.getApp().getResources().updateConfiguration(appConfig, appResources.getDisplayMetrics());
+
+        if (consumer == null) return;
+
+        if (isSameLocale(appLocal, destLocale)) {
+            consumer.accept(true);
+        } else {
+            if (index < 20) {
+                UtilsBridge.runOnUiThreadDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        pollCheckAppContextLocal(destLocale, index + 1, consumer);
+                    }
+                }, 16);
+                return;
+            }
+            Log.e("LanguageUtils", "appLocal didn't update.");
+            consumer.accept(false);
+        }
+    }
+
+    /**
+     * If applyLanguage not work, try to call it in {@link Activity#attachBaseContext(Context)}.
+     *
+     * @param context The baseContext.
+     * @return the context with language
+     */
+    public static Context attachBaseContext(Context context) {
+        String spLocaleStr = UtilsBridge.getSpUtils4Utils().getString(KEY_LOCALE);
+        if (TextUtils.isEmpty(spLocaleStr) || VALUE_FOLLOW_SYSTEM.equals(spLocaleStr)) {
+            return context;
+        }
+
+        Locale settingsLocale = string2Locale(spLocaleStr);
+        if (settingsLocale == null) return context;
+
+        Resources resources = context.getResources();
+        Configuration config = resources.getConfiguration();
+
+        setLocal(config, settingsLocale);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            return context.createConfigurationContext(config);
+        } else {
+            resources.updateConfiguration(config, resources.getDisplayMetrics());
+            return context;
+        }
+    }
+
+    static void applyLanguage(final Activity activity) {
+        String spLocale = UtilsBridge.getSpUtils4Utils().getString(KEY_LOCALE);
+        if (TextUtils.isEmpty(spLocale)) {
+            return;
+        }
+
+        Locale destLocal;
+        if (VALUE_FOLLOW_SYSTEM.equals(spLocale)) {
+            destLocal = getLocal(Resources.getSystem().getConfiguration());
+        } else {
+            destLocal = string2Locale(spLocale);
+        }
+
+        if (destLocal == null) return;
+
+        updateConfiguration(activity, destLocal);
+        updateConfiguration(Utils.getApp(), destLocal);
+    }
+
+    private static void updateConfiguration(Context context, Locale destLocal) {
+        Resources resources = context.getResources();
+        Configuration config = resources.getConfiguration();
+        setLocal(config, destLocal);
+        resources.updateConfiguration(config, resources.getDisplayMetrics());
+    }
+
+    private static String locale2String(Locale locale) {
+        String localLanguage = locale.getLanguage(); // this may be empty
+        String localCountry = locale.getCountry(); // this may be empty
+        return localLanguage + "$" + localCountry;
+    }
+
+    private static Locale string2Locale(String str) {
+        Locale locale = string2LocaleReal(str);
+        if (locale == null) {
+            Log.e("LanguageUtils", "The string of " + str + " is not in the correct format.");
+            UtilsBridge.getSpUtils4Utils().remove(KEY_LOCALE);
+        }
+        return locale;
+    }
+
+    private static Locale string2LocaleReal(String str) {
+        if (!isRightFormatLocalStr(str)) {
+            return null;
+        }
+
+        try {
+            int splitIndex = str.indexOf("$");
+            return new Locale(str.substring(0, splitIndex), str.substring(splitIndex + 1));
+        } catch (Exception ignore) {
+            return null;
+        }
+    }
+
+    private static boolean isRightFormatLocalStr(String localStr) {
+        char[] chars = localStr.toCharArray();
+        int count = 0;
+        for (char c : chars) {
+            if (c == '$') {
+                if (count >= 1) {
+                    return false;
+                }
+                ++count;
+            }
+        }
+        return count == 1;
+    }
+
+    private static boolean isSameLocale(Locale l0, Locale l1) {
+        return UtilsBridge.equals(l1.getLanguage(), l0.getLanguage())
+                && UtilsBridge.equals(l1.getCountry(), l0.getCountry());
+    }
+
+    private static Locale getLocal(Configuration configuration) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            return configuration.getLocales().get(0);
+        } else {
+            return configuration.locale;
+        }
+    }
+
+    private static void setLocal(Configuration configuration, Locale locale) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            configuration.setLocale(locale);
+        } else {
+            configuration.locale = locale;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java
new file mode 100644
index 0000000000..128e2b8de6
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java
@@ -0,0 +1,1231 @@
+package com.blankj.utilcode.util;
+
+import android.content.ClipData;
+import android.content.ComponentName;
+import android.content.Intent;
+import android.graphics.Rect;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.util.Log;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Date;
+import java.util.Formatter;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
+
+import androidx.annotation.IntDef;
+import androidx.annotation.IntRange;
+import androidx.annotation.RequiresApi;
+import androidx.collection.SimpleArrayMap;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/21
+ *     desc  : utils about log
+ * </pre>
+ */
+public final class LogUtils {
+
+    public static final int V = Log.VERBOSE;
+    public static final int D = Log.DEBUG;
+    public static final int I = Log.INFO;
+    public static final int W = Log.WARN;
+    public static final int E = Log.ERROR;
+    public static final int A = Log.ASSERT;
+
+    @IntDef({V, D, I, W, E, A})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface TYPE {
+    }
+
+    private static final char[] T = new char[]{'V', 'D', 'I', 'W', 'E', 'A'};
+
+    private static final int FILE = 0x10;
+    private static final int JSON = 0x20;
+    private static final int XML  = 0x30;
+
+    private static final String FILE_SEP       = System.getProperty("file.separator");
+    private static final String LINE_SEP       = System.getProperty("line.separator");
+    private static final String TOP_CORNER     = "┌";
+    private static final String MIDDLE_CORNER  = "├";
+    private static final String LEFT_BORDER    = "│ ";
+    private static final String BOTTOM_CORNER  = "└";
+    private static final String SIDE_DIVIDER   =
+            "────────────────────────────────────────────────────────";
+    private static final String MIDDLE_DIVIDER =
+            "┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄";
+    private static final String TOP_BORDER     = TOP_CORNER + SIDE_DIVIDER + SIDE_DIVIDER;
+    private static final String MIDDLE_BORDER  = MIDDLE_CORNER + MIDDLE_DIVIDER + MIDDLE_DIVIDER;
+    private static final String BOTTOM_BORDER  = BOTTOM_CORNER + SIDE_DIVIDER + SIDE_DIVIDER;
+    private static final int    MAX_LEN        = 1100;// fit for Chinese character
+    private static final String NOTHING        = "log nothing";
+    private static final String NULL           = "null";
+    private static final String ARGS           = "args";
+    private static final String PLACEHOLDER    = " ";
+    private static final Config CONFIG         = new Config();
+
+    private static SimpleDateFormat simpleDateFormat;
+
+    private static final ExecutorService EXECUTOR = Executors.newSingleThreadExecutor();
+
+    private static final SimpleArrayMap<Class, IFormatter> I_FORMATTER_MAP = new SimpleArrayMap<>();
+
+    private LogUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    public static Config getConfig() {
+        return CONFIG;
+    }
+
+    public static void v(final Object... contents) {
+        log(V, CONFIG.getGlobalTag(), contents);
+    }
+
+    public static void vTag(final String tag, final Object... contents) {
+        log(V, tag, contents);
+    }
+
+    public static void d(final Object... contents) {
+        log(D, CONFIG.getGlobalTag(), contents);
+    }
+
+    public static void dTag(final String tag, final Object... contents) {
+        log(D, tag, contents);
+    }
+
+    public static void i(final Object... contents) {
+        log(I, CONFIG.getGlobalTag(), contents);
+    }
+
+    public static void iTag(final String tag, final Object... contents) {
+        log(I, tag, contents);
+    }
+
+    public static void w(final Object... contents) {
+        log(W, CONFIG.getGlobalTag(), contents);
+    }
+
+    public static void wTag(final String tag, final Object... contents) {
+        log(W, tag, contents);
+    }
+
+    public static void e(final Object... contents) {
+        log(E, CONFIG.getGlobalTag(), contents);
+    }
+
+    public static void eTag(final String tag, final Object... contents) {
+        log(E, tag, contents);
+    }
+
+    public static void a(final Object... contents) {
+        log(A, CONFIG.getGlobalTag(), contents);
+    }
+
+    public static void aTag(final String tag, final Object... contents) {
+        log(A, tag, contents);
+    }
+
+    public static void file(final Object content) {
+        log(FILE | D, CONFIG.getGlobalTag(), content);
+    }
+
+    public static void file(@TYPE final int type, final Object content) {
+        log(FILE | type, CONFIG.getGlobalTag(), content);
+    }
+
+    public static void file(final String tag, final Object content) {
+        log(FILE | D, tag, content);
+    }
+
+    public static void file(@TYPE final int type, final String tag, final Object content) {
+        log(FILE | type, tag, content);
+    }
+
+    public static void json(final Object content) {
+        log(JSON | D, CONFIG.getGlobalTag(), content);
+    }
+
+    public static void json(@TYPE final int type, final Object content) {
+        log(JSON | type, CONFIG.getGlobalTag(), content);
+    }
+
+    public static void json(final String tag, final Object content) {
+        log(JSON | D, tag, content);
+    }
+
+    public static void json(@TYPE final int type, final String tag, final Object content) {
+        log(JSON | type, tag, content);
+    }
+
+    public static void xml(final String content) {
+        log(XML | D, CONFIG.getGlobalTag(), content);
+    }
+
+    public static void xml(@TYPE final int type, final String content) {
+        log(XML | type, CONFIG.getGlobalTag(), content);
+    }
+
+    public static void xml(final String tag, final String content) {
+        log(XML | D, tag, content);
+    }
+
+    public static void xml(@TYPE final int type, final String tag, final String content) {
+        log(XML | type, tag, content);
+    }
+
+    public static void log(final int type, final String tag, final Object... contents) {
+        if (!CONFIG.isLogSwitch()) return;
+        final int type_low = type & 0x0f, type_high = type & 0xf0;
+        if (CONFIG.isLog2ConsoleSwitch() || CONFIG.isLog2FileSwitch() || type_high == FILE) {
+            if (type_low < CONFIG.mConsoleFilter && type_low < CONFIG.mFileFilter) return;
+            final TagHead tagHead = processTagAndHead(tag);
+            final String body = processBody(type_high, contents);
+            if (CONFIG.isLog2ConsoleSwitch() && type_high != FILE && type_low >= CONFIG.mConsoleFilter) {
+                print2Console(type_low, tagHead.tag, tagHead.consoleHead, body);
+            }
+            if ((CONFIG.isLog2FileSwitch() || type_high == FILE) && type_low >= CONFIG.mFileFilter) {
+                EXECUTOR.execute(new Runnable() {
+                    @Override
+                    public void run() {
+                        print2File(type_low, tagHead.tag, tagHead.fileHead + body);
+                    }
+                });
+            }
+        }
+    }
+
+    public static String getCurrentLogFilePath() {
+        return getCurrentLogFilePath(new Date());
+    }
+
+    public static List<File> getLogFiles() {
+        String dir = CONFIG.getDir();
+        File logDir = new File(dir);
+        if (!logDir.exists()) return new ArrayList<>();
+        File[] files = logDir.listFiles(new FilenameFilter() {
+            @Override
+            public boolean accept(File dir, String name) {
+                return isMatchLogFileName(name);
+            }
+        });
+        List<File> list = new ArrayList<>();
+        Collections.addAll(list, files);
+        return list;
+    }
+
+    private static TagHead processTagAndHead(String tag) {
+        if (!CONFIG.mTagIsSpace && !CONFIG.isLogHeadSwitch()) {
+            tag = CONFIG.getGlobalTag();
+        } else {
+            final StackTraceElement[] stackTrace = new Throwable().getStackTrace();
+            final int stackIndex = 3 + CONFIG.getStackOffset();
+            if (stackIndex >= stackTrace.length) {
+                StackTraceElement targetElement = stackTrace[3];
+                final String fileName = getFileName(targetElement);
+                if (CONFIG.mTagIsSpace && UtilsBridge.isSpace(tag)) {
+                    int index = fileName.indexOf('.');// Use proguard may not find '.'.
+                    tag = index == -1 ? fileName : fileName.substring(0, index);
+                }
+                return new TagHead(tag, null, ": ");
+            }
+            StackTraceElement targetElement = stackTrace[stackIndex];
+            final String fileName = getFileName(targetElement);
+            if (CONFIG.mTagIsSpace && UtilsBridge.isSpace(tag)) {
+                int index = fileName.indexOf('.');// Use proguard may not find '.'.
+                tag = index == -1 ? fileName : fileName.substring(0, index);
+            }
+            if (CONFIG.isLogHeadSwitch()) {
+                String tName = Thread.currentThread().getName();
+                final String head = new Formatter()
+                        .format("%s, %s.%s(%s:%d)",
+                                tName,
+                                targetElement.getClassName(),
+                                targetElement.getMethodName(),
+                                fileName,
+                                targetElement.getLineNumber())
+                        .toString();
+                final String fileHead = " [" + head + "]: ";
+                if (CONFIG.getStackDeep() <= 1) {
+                    return new TagHead(tag, new String[]{head}, fileHead);
+                } else {
+                    final String[] consoleHead =
+                            new String[Math.min(
+                                    CONFIG.getStackDeep(),
+                                    stackTrace.length - stackIndex
+                            )];
+                    consoleHead[0] = head;
+                    int spaceLen = tName.length() + 2;
+                    String space = new Formatter().format("%" + spaceLen + "s", "").toString();
+                    for (int i = 1, len = consoleHead.length; i < len; ++i) {
+                        targetElement = stackTrace[i + stackIndex];
+                        consoleHead[i] = new Formatter()
+                                .format("%s%s.%s(%s:%d)",
+                                        space,
+                                        targetElement.getClassName(),
+                                        targetElement.getMethodName(),
+                                        getFileName(targetElement),
+                                        targetElement.getLineNumber())
+                                .toString();
+                    }
+                    return new TagHead(tag, consoleHead, fileHead);
+                }
+            }
+        }
+        return new TagHead(tag, null, ": ");
+    }
+
+    private static String getFileName(final StackTraceElement targetElement) {
+        String fileName = targetElement.getFileName();
+        if (fileName != null) return fileName;
+        // If name of file is null, should add
+        // "-keepattributes SourceFile,LineNumberTable" in proguard file.
+        String className = targetElement.getClassName();
+        String[] classNameInfo = className.split("\\.");
+        if (classNameInfo.length > 0) {
+            className = classNameInfo[classNameInfo.length - 1];
+        }
+        int index = className.indexOf('$');
+        if (index != -1) {
+            className = className.substring(0, index);
+        }
+        return className + ".java";
+    }
+
+    private static String processBody(final int type, final Object... contents) {
+        String body = NULL;
+        if (contents != null) {
+            if (contents.length == 1) {
+                body = formatObject(type, contents[0]);
+            } else {
+                StringBuilder sb = new StringBuilder();
+                for (int i = 0, len = contents.length; i < len; ++i) {
+                    Object content = contents[i];
+                    sb.append(ARGS)
+                            .append("[")
+                            .append(i)
+                            .append("]")
+                            .append(" = ")
+                            .append(formatObject(content))
+                            .append(LINE_SEP);
+                }
+                body = sb.toString();
+            }
+        }
+        return body.length() == 0 ? NOTHING : body;
+    }
+
+    private static String formatObject(int type, Object object) {
+        if (object == null) return NULL;
+        if (type == JSON) return LogFormatter.object2String(object, JSON);
+        if (type == XML) return LogFormatter.object2String(object, XML);
+        return formatObject(object);
+    }
+
+    private static String formatObject(Object object) {
+        if (object == null) return NULL;
+        if (!I_FORMATTER_MAP.isEmpty()) {
+            IFormatter iFormatter = I_FORMATTER_MAP.get(getClassFromObject(object));
+            if (iFormatter != null) {
+                //noinspection unchecked
+                return iFormatter.format(object);
+            }
+        }
+        return LogFormatter.object2String(object);
+    }
+
+    private static void print2Console(final int type,
+                                      final String tag,
+                                      final String[] head,
+                                      final String msg) {
+        if (CONFIG.isSingleTagSwitch()) {
+            printSingleTagMsg(type, tag, processSingleTagMsg(type, tag, head, msg));
+        } else {
+            printBorder(type, tag, true);
+            printHead(type, tag, head);
+            printMsg(type, tag, msg);
+            printBorder(type, tag, false);
+        }
+    }
+
+    private static void printBorder(final int type, final String tag, boolean isTop) {
+        if (CONFIG.isLogBorderSwitch()) {
+            print2Console(type, tag, isTop ? TOP_BORDER : BOTTOM_BORDER);
+        }
+    }
+
+    private static void printHead(final int type, final String tag, final String[] head) {
+        if (head != null) {
+            for (String aHead : head) {
+                print2Console(type, tag, CONFIG.isLogBorderSwitch() ? LEFT_BORDER + aHead : aHead);
+            }
+            if (CONFIG.isLogBorderSwitch()) print2Console(type, tag, MIDDLE_BORDER);
+        }
+    }
+
+    private static void printMsg(final int type, final String tag, final String msg) {
+        int len = msg.length();
+        int countOfSub = len / MAX_LEN;
+        if (countOfSub > 0) {
+            int index = 0;
+            for (int i = 0; i < countOfSub; i++) {
+                printSubMsg(type, tag, msg.substring(index, index + MAX_LEN));
+                index += MAX_LEN;
+            }
+            if (index != len) {
+                printSubMsg(type, tag, msg.substring(index, len));
+            }
+        } else {
+            printSubMsg(type, tag, msg);
+        }
+    }
+
+    private static void printSubMsg(final int type, final String tag, final String msg) {
+        if (!CONFIG.isLogBorderSwitch()) {
+            print2Console(type, tag, msg);
+            return;
+        }
+        StringBuilder sb = new StringBuilder();
+        String[] lines = msg.split(LINE_SEP);
+        for (String line : lines) {
+            print2Console(type, tag, LEFT_BORDER + line);
+        }
+    }
+
+    private static String processSingleTagMsg(final int type,
+                                              final String tag,
+                                              final String[] head,
+                                              final String msg) {
+        StringBuilder sb = new StringBuilder();
+        if (CONFIG.isLogBorderSwitch()) {
+            sb.append(PLACEHOLDER).append(LINE_SEP);
+            sb.append(TOP_BORDER).append(LINE_SEP);
+            if (head != null) {
+                for (String aHead : head) {
+                    sb.append(LEFT_BORDER).append(aHead).append(LINE_SEP);
+                }
+                sb.append(MIDDLE_BORDER).append(LINE_SEP);
+            }
+            for (String line : msg.split(LINE_SEP)) {
+                sb.append(LEFT_BORDER).append(line).append(LINE_SEP);
+            }
+            sb.append(BOTTOM_BORDER);
+        } else {
+            if (head != null) {
+                sb.append(PLACEHOLDER).append(LINE_SEP);
+                for (String aHead : head) {
+                    sb.append(aHead).append(LINE_SEP);
+                }
+            }
+            sb.append(msg);
+        }
+        return sb.toString();
+    }
+
+    private static void printSingleTagMsg(final int type, final String tag, final String msg) {
+        int len = msg.length();
+        int countOfSub = CONFIG.isLogBorderSwitch() ? (len - BOTTOM_BORDER.length()) / MAX_LEN : len / MAX_LEN;
+        if (countOfSub > 0) {
+            if (CONFIG.isLogBorderSwitch()) {
+                print2Console(type, tag, msg.substring(0, MAX_LEN) + LINE_SEP + BOTTOM_BORDER);
+                int index = MAX_LEN;
+                for (int i = 1; i < countOfSub; i++) {
+                    print2Console(type, tag, PLACEHOLDER + LINE_SEP + TOP_BORDER + LINE_SEP
+                            + LEFT_BORDER + msg.substring(index, index + MAX_LEN)
+                            + LINE_SEP + BOTTOM_BORDER);
+                    index += MAX_LEN;
+                }
+                if (index != len - BOTTOM_BORDER.length()) {
+                    print2Console(type, tag, PLACEHOLDER + LINE_SEP + TOP_BORDER + LINE_SEP
+                            + LEFT_BORDER + msg.substring(index, len));
+                }
+            } else {
+                print2Console(type, tag, msg.substring(0, MAX_LEN));
+                int index = MAX_LEN;
+                for (int i = 1; i < countOfSub; i++) {
+                    print2Console(type, tag,
+                            PLACEHOLDER + LINE_SEP + msg.substring(index, index + MAX_LEN));
+                    index += MAX_LEN;
+                }
+                if (index != len) {
+                    print2Console(type, tag, PLACEHOLDER + LINE_SEP + msg.substring(index, len));
+                }
+            }
+        } else {
+            print2Console(type, tag, msg);
+        }
+    }
+
+    private static void print2Console(int type, String tag, String msg) {
+        Log.println(type, tag, msg);
+        if (CONFIG.mOnConsoleOutputListener != null) {
+            CONFIG.mOnConsoleOutputListener.onConsoleOutput(type, tag, msg);
+        }
+    }
+
+    private static void print2File(final int type, final String tag, final String msg) {
+        Date d = new Date();
+        String format = getSdf().format(d);
+        String date = format.substring(0, 10);
+        String currentLogFilePath = getCurrentLogFilePath(d);
+        if (!createOrExistsFile(currentLogFilePath, date)) {
+            Log.e("LogUtils", "create " + currentLogFilePath + " failed!");
+            return;
+        }
+        String time = format.substring(11);
+        final String content = time +
+                T[type - V] +
+                "/" +
+                tag +
+                msg +
+                LINE_SEP;
+        input2File(currentLogFilePath, content);
+    }
+
+    private static String getCurrentLogFilePath(Date d) {
+        String format = getSdf().format(d);
+        String date = format.substring(0, 10);
+        return CONFIG.getDir() + CONFIG.getFilePrefix() + "_"
+                + date + "_" +
+                CONFIG.getProcessName() + CONFIG.getFileExtension();
+    }
+
+
+    private static SimpleDateFormat getSdf() {
+        if (simpleDateFormat == null) {
+            simpleDateFormat = new SimpleDateFormat("yyyy_MM_dd HH:mm:ss.SSS ", Locale.getDefault());
+        }
+        return simpleDateFormat;
+    }
+
+    private static boolean createOrExistsFile(final String filePath, final String date) {
+        File file = new File(filePath);
+        if (file.exists()) return file.isFile();
+        if (!UtilsBridge.createOrExistsDir(file.getParentFile())) return false;
+        try {
+            deleteDueLogs(filePath, date);
+            boolean isCreate = file.createNewFile();
+            if (isCreate) {
+                printDeviceInfo(filePath, date);
+            }
+            return isCreate;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    private static void deleteDueLogs(final String filePath, final String date) {
+        if (CONFIG.getSaveDays() <= 0) return;
+        File file = new File(filePath);
+        File parentFile = file.getParentFile();
+        File[] files = parentFile.listFiles(new FilenameFilter() {
+            @Override
+            public boolean accept(File dir, String name) {
+                return isMatchLogFileName(name);
+            }
+        });
+        if (files == null || files.length <= 0) return;
+        final SimpleDateFormat sdf = new SimpleDateFormat("yyyy_MM_dd", Locale.getDefault());
+        try {
+            long dueMillis = sdf.parse(date).getTime() - CONFIG.getSaveDays() * 86400000L;
+            for (final File aFile : files) {
+                String name = aFile.getName();
+                int l = name.length();
+                String logDay = findDate(name);
+                if (sdf.parse(logDay).getTime() <= dueMillis) {
+                    EXECUTOR.execute(new Runnable() {
+                        @Override
+                        public void run() {
+                            boolean delete = aFile.delete();
+                            if (!delete) {
+                                Log.e("LogUtils", "delete " + aFile + " failed!");
+                            }
+                        }
+                    });
+                }
+            }
+        } catch (ParseException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private static boolean isMatchLogFileName(String name) {
+        return name.matches("^" + CONFIG.getFilePrefix() + "_[0-9]{4}_[0-9]{2}_[0-9]{2}_.*$");
+    }
+
+    private static String findDate(String str) {
+        Pattern pattern = Pattern.compile("[0-9]{4}_[0-9]{2}_[0-9]{2}");
+        Matcher matcher = pattern.matcher(str);
+        if (matcher.find()) {
+            return matcher.group();
+        }
+        return "";
+    }
+
+    private static void printDeviceInfo(final String filePath, final String date) {
+        CONFIG.mFileHead.addFirst("Date of Log", date);
+        input2File(filePath, CONFIG.mFileHead.toString());
+    }
+
+    private static void input2File(final String filePath, final String input) {
+        if (CONFIG.mFileWriter == null) {
+            UtilsBridge.writeFileFromString(filePath, input, true);
+        } else {
+            CONFIG.mFileWriter.write(filePath, input);
+        }
+        if (CONFIG.mOnFileOutputListener != null) {
+            CONFIG.mOnFileOutputListener.onFileOutput(filePath, input);
+        }
+    }
+
+    public static final class Config {
+        private String                  mDefaultDir;                // The default storage directory of log.
+        private String                  mDir;                       // The storage directory of log.
+        private String                  mFilePrefix        = "util";// The file prefix of log.
+        private String                  mFileExtension     = ".txt";// The file extension of log.
+        private boolean                 mLogSwitch         = true;  // The switch of log.
+        private boolean                 mLog2ConsoleSwitch = true;  // The logcat's switch of log.
+        private String                  mGlobalTag         = "";    // The global tag of log.
+        private boolean                 mTagIsSpace        = true;  // The global tag is space.
+        private boolean                 mLogHeadSwitch     = true;  // The head's switch of log.
+        private boolean                 mLog2FileSwitch    = false; // The file's switch of log.
+        private boolean                 mLogBorderSwitch   = true;  // The border's switch of log.
+        private boolean                 mSingleTagSwitch   = true;  // The single tag of log.
+        private int                     mConsoleFilter     = V;     // The console's filter of log.
+        private int                     mFileFilter        = V;     // The file's filter of log.
+        private int                     mStackDeep         = 1;     // The stack's deep of log.
+        private int                     mStackOffset       = 0;     // The stack's offset of log.
+        private int                     mSaveDays          = -1;    // The save days of log.
+        private String                  mProcessName       = UtilsBridge.getCurrentProcessName();
+        private IFileWriter             mFileWriter;
+        private OnConsoleOutputListener mOnConsoleOutputListener;
+        private OnFileOutputListener    mOnFileOutputListener;
+        private UtilsBridge.FileHead    mFileHead          = new UtilsBridge.FileHead("Log");
+
+        private Config() {
+            if (UtilsBridge.isSDCardEnableByEnvironment()
+                    && Utils.getApp().getExternalFilesDir(null) != null)
+                mDefaultDir = Utils.getApp().getExternalFilesDir(null) + FILE_SEP + "log" + FILE_SEP;
+            else {
+                mDefaultDir = Utils.getApp().getFilesDir() + FILE_SEP + "log" + FILE_SEP;
+            }
+        }
+
+        public final Config setLogSwitch(final boolean logSwitch) {
+            mLogSwitch = logSwitch;
+            return this;
+        }
+
+        public final Config setConsoleSwitch(final boolean consoleSwitch) {
+            mLog2ConsoleSwitch = consoleSwitch;
+            return this;
+        }
+
+        public final Config setGlobalTag(final String tag) {
+            if (UtilsBridge.isSpace(tag)) {
+                mGlobalTag = "";
+                mTagIsSpace = true;
+            } else {
+                mGlobalTag = tag;
+                mTagIsSpace = false;
+            }
+            return this;
+        }
+
+        public final Config setLogHeadSwitch(final boolean logHeadSwitch) {
+            mLogHeadSwitch = logHeadSwitch;
+            return this;
+        }
+
+        public final Config setLog2FileSwitch(final boolean log2FileSwitch) {
+            mLog2FileSwitch = log2FileSwitch;
+            return this;
+        }
+
+        public final Config setDir(final String dir) {
+            if (UtilsBridge.isSpace(dir)) {
+                mDir = null;
+            } else {
+                mDir = dir.endsWith(FILE_SEP) ? dir : dir + FILE_SEP;
+            }
+            return this;
+        }
+
+        public final Config setDir(final File dir) {
+            mDir = dir == null ? null : (dir.getAbsolutePath() + FILE_SEP);
+            return this;
+        }
+
+        public final Config setFilePrefix(final String filePrefix) {
+            if (UtilsBridge.isSpace(filePrefix)) {
+                mFilePrefix = "util";
+            } else {
+                mFilePrefix = filePrefix;
+            }
+            return this;
+        }
+
+        public final Config setFileExtension(final String fileExtension) {
+            if (UtilsBridge.isSpace(fileExtension)) {
+                mFileExtension = ".txt";
+            } else {
+                if (fileExtension.startsWith(".")) {
+                    mFileExtension = fileExtension;
+                } else {
+                    mFileExtension = "." + fileExtension;
+                }
+            }
+            return this;
+        }
+
+        public final Config setBorderSwitch(final boolean borderSwitch) {
+            mLogBorderSwitch = borderSwitch;
+            return this;
+        }
+
+        public final Config setSingleTagSwitch(final boolean singleTagSwitch) {
+            mSingleTagSwitch = singleTagSwitch;
+            return this;
+        }
+
+        public final Config setConsoleFilter(@TYPE final int consoleFilter) {
+            mConsoleFilter = consoleFilter;
+            return this;
+        }
+
+        public final Config setFileFilter(@TYPE final int fileFilter) {
+            mFileFilter = fileFilter;
+            return this;
+        }
+
+        public final Config setStackDeep(@IntRange(from = 1) final int stackDeep) {
+            mStackDeep = stackDeep;
+            return this;
+        }
+
+        public final Config setStackOffset(@IntRange(from = 0) final int stackOffset) {
+            mStackOffset = stackOffset;
+            return this;
+        }
+
+        public final Config setSaveDays(@IntRange(from = 1) final int saveDays) {
+            mSaveDays = saveDays;
+            return this;
+        }
+
+        public final <T> Config addFormatter(final IFormatter<T> iFormatter) {
+            if (iFormatter != null) {
+                I_FORMATTER_MAP.put(getTypeClassFromParadigm(iFormatter), iFormatter);
+            }
+            return this;
+        }
+
+        public final Config setFileWriter(final IFileWriter fileWriter) {
+            mFileWriter = fileWriter;
+            return this;
+        }
+
+        public final Config setOnConsoleOutputListener(final OnConsoleOutputListener listener) {
+            mOnConsoleOutputListener = listener;
+            return this;
+        }
+
+        public final Config setOnFileOutputListener(final OnFileOutputListener listener) {
+            mOnFileOutputListener = listener;
+            return this;
+        }
+
+        public final Config addFileExtraHead(final Map<String, String> fileExtraHead) {
+            mFileHead.append(fileExtraHead);
+            return this;
+        }
+
+        public final Config addFileExtraHead(final String key, final String value) {
+            mFileHead.append(key, value);
+            return this;
+        }
+
+        public final String getProcessName() {
+            if (mProcessName == null) return "";
+            return mProcessName.replace(":", "_");
+        }
+
+        public final String getDefaultDir() {
+            return mDefaultDir;
+        }
+
+        public final String getDir() {
+            return mDir == null ? mDefaultDir : mDir;
+        }
+
+        public final String getFilePrefix() {
+            return mFilePrefix;
+        }
+
+        public final String getFileExtension() {
+            return mFileExtension;
+        }
+
+        public final boolean isLogSwitch() {
+            return mLogSwitch;
+        }
+
+        public final boolean isLog2ConsoleSwitch() {
+            return mLog2ConsoleSwitch;
+        }
+
+        public final String getGlobalTag() {
+            if (UtilsBridge.isSpace(mGlobalTag)) return "";
+            return mGlobalTag;
+        }
+
+        public final boolean isLogHeadSwitch() {
+            return mLogHeadSwitch;
+        }
+
+        public final boolean isLog2FileSwitch() {
+            return mLog2FileSwitch;
+        }
+
+        public final boolean isLogBorderSwitch() {
+            return mLogBorderSwitch;
+        }
+
+        public final boolean isSingleTagSwitch() {
+            return mSingleTagSwitch;
+        }
+
+        public final char getConsoleFilter() {
+            return T[mConsoleFilter - V];
+        }
+
+        public final char getFileFilter() {
+            return T[mFileFilter - V];
+        }
+
+        public final int getStackDeep() {
+            return mStackDeep;
+        }
+
+        public final int getStackOffset() {
+            return mStackOffset;
+        }
+
+        public final int getSaveDays() {
+            return mSaveDays;
+        }
+
+        public final boolean haveSetOnConsoleOutputListener() {
+            return mOnConsoleOutputListener != null;
+        }
+
+        public final boolean haveSetOnFileOutputListener() {
+            return mOnFileOutputListener != null;
+        }
+
+        @Override
+        public String toString() {
+            return "process: " + getProcessName()
+                    + LINE_SEP + "logSwitch: " + isLogSwitch()
+                    + LINE_SEP + "consoleSwitch: " + isLog2ConsoleSwitch()
+                    + LINE_SEP + "tag: " + (getGlobalTag().equals("") ? "null" : getGlobalTag())
+                    + LINE_SEP + "headSwitch: " + isLogHeadSwitch()
+                    + LINE_SEP + "fileSwitch: " + isLog2FileSwitch()
+                    + LINE_SEP + "dir: " + getDir()
+                    + LINE_SEP + "filePrefix: " + getFilePrefix()
+                    + LINE_SEP + "borderSwitch: " + isLogBorderSwitch()
+                    + LINE_SEP + "singleTagSwitch: " + isSingleTagSwitch()
+                    + LINE_SEP + "consoleFilter: " + getConsoleFilter()
+                    + LINE_SEP + "fileFilter: " + getFileFilter()
+                    + LINE_SEP + "stackDeep: " + getStackDeep()
+                    + LINE_SEP + "stackOffset: " + getStackOffset()
+                    + LINE_SEP + "saveDays: " + getSaveDays()
+                    + LINE_SEP + "formatter: " + I_FORMATTER_MAP
+                    + LINE_SEP + "fileWriter: " + mFileWriter
+                    + LINE_SEP + "onConsoleOutputListener: " + mOnConsoleOutputListener
+                    + LINE_SEP + "onFileOutputListener: " + mOnFileOutputListener
+                    + LINE_SEP + "fileExtraHeader: " + mFileHead.getAppended();
+        }
+    }
+
+    public abstract static class IFormatter<T> {
+        public abstract String format(T t);
+    }
+
+    public interface IFileWriter {
+        void write(String file, String content);
+    }
+
+    public interface OnConsoleOutputListener {
+        void onConsoleOutput(@TYPE int type, String tag, String content);
+    }
+
+    public interface OnFileOutputListener {
+        void onFileOutput(String filePath, String content);
+    }
+
+    private final static class TagHead {
+        String   tag;
+        String[] consoleHead;
+        String   fileHead;
+
+        TagHead(String tag, String[] consoleHead, String fileHead) {
+            this.tag = tag;
+            this.consoleHead = consoleHead;
+            this.fileHead = fileHead;
+        }
+    }
+
+    private final static class LogFormatter {
+
+        static String object2String(Object object) {
+            return object2String(object, -1);
+        }
+
+        static String object2String(Object object, int type) {
+            if (object.getClass().isArray()) return array2String(object);
+            if (object instanceof Throwable)
+                return UtilsBridge.getFullStackTrace((Throwable) object);
+            if (object instanceof Bundle) return bundle2String((Bundle) object);
+            if (object instanceof Intent) return intent2String((Intent) object);
+            if (type == JSON) {
+                return object2Json(object);
+            } else if (type == XML) {
+                return formatXml(object.toString());
+            }
+            return object.toString();
+        }
+
+        private static String bundle2String(Bundle bundle) {
+            Iterator<String> iterator = bundle.keySet().iterator();
+            if (!iterator.hasNext()) {
+                return "Bundle {}";
+            }
+            StringBuilder sb = new StringBuilder(128);
+            sb.append("Bundle { ");
+            for (; ; ) {
+                String key = iterator.next();
+                Object value = bundle.get(key);
+                sb.append(key).append('=');
+                if (value instanceof Bundle) {
+                    sb.append(value == bundle ? "(this Bundle)" : bundle2String((Bundle) value));
+                } else {
+                    sb.append(formatObject(value));
+                }
+                if (!iterator.hasNext()) return sb.append(" }").toString();
+                sb.append(',').append(' ');
+            }
+        }
+
+        private static String intent2String(Intent intent) {
+            StringBuilder sb = new StringBuilder(128);
+            sb.append("Intent { ");
+            boolean first = true;
+            String mAction = intent.getAction();
+            if (mAction != null) {
+                sb.append("act=").append(mAction);
+                first = false;
+            }
+            Set<String> mCategories = intent.getCategories();
+            if (mCategories != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("cat=[");
+                boolean firstCategory = true;
+                for (String c : mCategories) {
+                    if (!firstCategory) {
+                        sb.append(',');
+                    }
+                    sb.append(c);
+                    firstCategory = false;
+                }
+                sb.append("]");
+            }
+            Uri mData = intent.getData();
+            if (mData != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("dat=").append(mData);
+            }
+            String mType = intent.getType();
+            if (mType != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("typ=").append(mType);
+            }
+            int mFlags = intent.getFlags();
+            if (mFlags != 0) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("flg=0x").append(Integer.toHexString(mFlags));
+            }
+            String mPackage = intent.getPackage();
+            if (mPackage != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("pkg=").append(mPackage);
+            }
+            ComponentName mComponent = intent.getComponent();
+            if (mComponent != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("cmp=").append(mComponent.flattenToShortString());
+            }
+            Rect mSourceBounds = intent.getSourceBounds();
+            if (mSourceBounds != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("bnds=").append(mSourceBounds.toShortString());
+            }
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                ClipData mClipData = intent.getClipData();
+                if (mClipData != null) {
+                    if (!first) {
+                        sb.append(' ');
+                    }
+                    first = false;
+                    clipData2String(mClipData, sb);
+                }
+            }
+            Bundle mExtras = intent.getExtras();
+            if (mExtras != null) {
+                if (!first) {
+                    sb.append(' ');
+                }
+                first = false;
+                sb.append("extras={");
+                sb.append(bundle2String(mExtras));
+                sb.append('}');
+            }
+            if (Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
+                Intent mSelector = intent.getSelector();
+                if (mSelector != null) {
+                    if (!first) {
+                        sb.append(' ');
+                    }
+                    first = false;
+                    sb.append("sel={");
+                    sb.append(mSelector == intent ? "(this Intent)" : intent2String(mSelector));
+                    sb.append("}");
+                }
+            }
+            sb.append(" }");
+            return sb.toString();
+        }
+
+        @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
+        private static void clipData2String(ClipData clipData, StringBuilder sb) {
+            ClipData.Item item = clipData.getItemAt(0);
+            if (item == null) {
+                sb.append("ClipData.Item {}");
+                return;
+            }
+            sb.append("ClipData.Item { ");
+            String mHtmlText = item.getHtmlText();
+            if (mHtmlText != null) {
+                sb.append("H:");
+                sb.append(mHtmlText);
+                sb.append("}");
+                return;
+            }
+            CharSequence mText = item.getText();
+            if (mText != null) {
+                sb.append("T:");
+                sb.append(mText);
+                sb.append("}");
+                return;
+            }
+            Uri uri = item.getUri();
+            if (uri != null) {
+                sb.append("U:").append(uri);
+                sb.append("}");
+                return;
+            }
+            Intent intent = item.getIntent();
+            if (intent != null) {
+                sb.append("I:");
+                sb.append(intent2String(intent));
+                sb.append("}");
+                return;
+            }
+            sb.append("NULL");
+            sb.append("}");
+        }
+
+        private static String object2Json(Object object) {
+            if (object instanceof CharSequence) {
+                return UtilsBridge.formatJson(object.toString());
+            }
+            try {
+                return UtilsBridge.getGson4LogUtils().toJson(object);
+            } catch (Throwable t) {
+                return object.toString();
+            }
+        }
+
+        private static String formatJson(String json) {
+            try {
+                for (int i = 0, len = json.length(); i < len; i++) {
+                    char c = json.charAt(i);
+                    if (c == '{') {
+                        return new JSONObject(json).toString(2);
+                    } else if (c == '[') {
+                        return new JSONArray(json).toString(2);
+                    } else if (!Character.isWhitespace(c)) {
+                        return json;
+                    }
+                }
+            } catch (JSONException e) {
+                e.printStackTrace();
+            }
+            return json;
+        }
+
+        private static String formatXml(String xml) {
+            try {
+                Source xmlInput = new StreamSource(new StringReader(xml));
+                StreamResult xmlOutput = new StreamResult(new StringWriter());
+                Transformer transformer = TransformerFactory.newInstance().newTransformer();
+                transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+                transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
+                transformer.transform(xmlInput, xmlOutput);
+                xml = xmlOutput.getWriter().toString().replaceFirst(">", ">" + LINE_SEP);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+            return xml;
+        }
+
+        private static String array2String(Object object) {
+            if (object instanceof Object[]) {
+                return Arrays.deepToString((Object[]) object);
+            } else if (object instanceof boolean[]) {
+                return Arrays.toString((boolean[]) object);
+            } else if (object instanceof byte[]) {
+                return Arrays.toString((byte[]) object);
+            } else if (object instanceof char[]) {
+                return Arrays.toString((char[]) object);
+            } else if (object instanceof double[]) {
+                return Arrays.toString((double[]) object);
+            } else if (object instanceof float[]) {
+                return Arrays.toString((float[]) object);
+            } else if (object instanceof int[]) {
+                return Arrays.toString((int[]) object);
+            } else if (object instanceof long[]) {
+                return Arrays.toString((long[]) object);
+            } else if (object instanceof short[]) {
+                return Arrays.toString((short[]) object);
+            }
+            throw new IllegalArgumentException("Array has incompatible type: " + object.getClass());
+        }
+    }
+
+    private static <T> Class getTypeClassFromParadigm(final IFormatter<T> formatter) {
+        Type[] genericInterfaces = formatter.getClass().getGenericInterfaces();
+        Type type;
+        if (genericInterfaces.length == 1) {
+            type = genericInterfaces[0];
+        } else {
+            type = formatter.getClass().getGenericSuperclass();
+        }
+        type = ((ParameterizedType) type).getActualTypeArguments()[0];
+        while (type instanceof ParameterizedType) {
+            type = ((ParameterizedType) type).getRawType();
+        }
+        String className = type.toString();
+        if (className.startsWith("class ")) {
+            className = className.substring(6);
+        } else if (className.startsWith("interface ")) {
+            className = className.substring(10);
+        }
+        try {
+            return Class.forName(className);
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    private static Class getClassFromObject(final Object obj) {
+        Class objClass = obj.getClass();
+        if (objClass.isAnonymousClass() || objClass.isSynthetic()) {
+            Type[] genericInterfaces = objClass.getGenericInterfaces();
+            String className;
+            if (genericInterfaces.length == 1) {// interface
+                Type type = genericInterfaces[0];
+                while (type instanceof ParameterizedType) {
+                    type = ((ParameterizedType) type).getRawType();
+                }
+                className = type.toString();
+            } else {// abstract class or lambda
+                Type type = objClass.getGenericSuperclass();
+                while (type instanceof ParameterizedType) {
+                    type = ((ParameterizedType) type).getRawType();
+                }
+                className = type.toString();
+            }
+
+            if (className.startsWith("class ")) {
+                className = className.substring(6);
+            } else if (className.startsWith("interface ")) {
+                className = className.substring(10);
+            }
+            try {
+                return Class.forName(className);
+            } catch (ClassNotFoundException e) {
+                e.printStackTrace();
+            }
+        }
+        return objClass;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/MapUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/MapUtils.java
new file mode 100644
index 0000000000..21de1d7b1e
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/MapUtils.java
@@ -0,0 +1,191 @@
+package com.blankj.utilcode.util;
+
+import android.util.Pair;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.TreeMap;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/12
+ *     desc  : utils about map
+ * </pre>
+ */
+public class MapUtils {
+
+    private MapUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Returns a new read-only map with the specified contents, given as a list of pairs
+     * where the first value is the key and the second is the value.
+     *
+     * @param pairs a list of pairs
+     * @return a new read-only map with the specified contents
+     */
+    @SafeVarargs
+    public static <K, V> Map<K, V> newUnmodifiableMap(final Pair<K, V>... pairs) {
+        return Collections.unmodifiableMap(newHashMap(pairs));
+    }
+
+    @SafeVarargs
+    public static <K, V> HashMap<K, V> newHashMap(final Pair<K, V>... pairs) {
+        HashMap<K, V> map = new HashMap<>();
+        if (pairs == null || pairs.length == 0) {
+            return map;
+        }
+        for (Pair<K, V> pair : pairs) {
+            if (pair == null) continue;
+            map.put(pair.first, pair.second);
+        }
+        return map;
+    }
+
+    @SafeVarargs
+    public static <K, V> LinkedHashMap<K, V> newLinkedHashMap(final Pair<K, V>... pairs) {
+        LinkedHashMap<K, V> map = new LinkedHashMap<>();
+        if (pairs == null || pairs.length == 0) {
+            return map;
+        }
+        for (Pair<K, V> pair : pairs) {
+            if (pair == null) continue;
+            map.put(pair.first, pair.second);
+        }
+        return map;
+    }
+
+    @SafeVarargs
+    public static <K, V> TreeMap<K, V> newTreeMap(final Comparator<K> comparator,
+                                                  final Pair<K, V>... pairs) {
+        if (comparator == null) {
+            throw new IllegalArgumentException("comparator must not be null");
+        }
+        TreeMap<K, V> map = new TreeMap<>(comparator);
+        if (pairs == null || pairs.length == 0) {
+            return map;
+        }
+        for (Pair<K, V> pair : pairs) {
+            if (pair == null) continue;
+            map.put(pair.first, pair.second);
+        }
+        return map;
+    }
+
+    @SafeVarargs
+    public static <K, V> Hashtable<K, V> newHashTable(final Pair<K, V>... pairs) {
+        Hashtable<K, V> map = new Hashtable<>();
+        if (pairs == null || pairs.length == 0) {
+            return map;
+        }
+        for (Pair<K, V> pair : pairs) {
+            if (pair == null) continue;
+            map.put(pair.first, pair.second);
+        }
+        return map;
+    }
+
+    /**
+     * Null-safe check if the specified map is empty.
+     * <p>
+     * Null returns true.
+     *
+     * @param map the map to check, may be null
+     * @return true if empty or null
+     */
+    public static boolean isEmpty(Map map) {
+        return map == null || map.size() == 0;
+    }
+
+    /**
+     * Null-safe check if the specified map is not empty.
+     * <p>
+     * Null returns false.
+     *
+     * @param map the map to check, may be null
+     * @return true if non-null and non-empty
+     */
+    public static boolean isNotEmpty(Map map) {
+        return !isEmpty(map);
+    }
+
+    /**
+     * Gets the size of the map specified.
+     *
+     * @param map The map.
+     * @return the size of the map specified
+     */
+    public static int size(Map map) {
+        if (map == null) return 0;
+        return map.size();
+    }
+
+    /**
+     * Executes the given closure on each element in the collection.
+     * <p>
+     * If the input collection or closure is null, there is no change made.
+     *
+     * @param map     the map to get the input from, may be null
+     * @param closure the closure to perform, may be null
+     */
+    public static <K, V> void forAllDo(Map<K, V> map, Closure<K, V> closure) {
+        if (map == null || closure == null) return;
+        for (Map.Entry<K, V> kvEntry : map.entrySet()) {
+            closure.execute(kvEntry.getKey(), kvEntry.getValue());
+        }
+    }
+
+    /**
+     * Transform the map by applying a Transformer to each element.
+     * <p>
+     * If the input map or transformer is null, there is no change made.
+     *
+     * @param map         the map to get the input from, may be null
+     * @param transformer the transformer to perform, may be null
+     */
+    public static <K1, V1, K2, V2> Map<K2, V2> transform(Map<K1, V1> map, final Transformer<K1, V1, K2, V2> transformer) {
+        if (map == null || transformer == null) return null;
+        try {
+            final Map<K2, V2> transMap = map.getClass().newInstance();
+            forAllDo(map, new Closure<K1, V1>() {
+                @Override
+                public void execute(K1 key, V1 value) {
+                    Pair<K2, V2> pair = transformer.transform(key, value);
+                    transMap.put(pair.first, pair.second);
+                }
+            });
+            return transMap;
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (InstantiationException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * Return the string of map.
+     *
+     * @param map The map.
+     * @return the string of map
+     */
+    public static String toString(Map map) {
+        if (map == null) return "null";
+        return map.toString();
+    }
+
+    public interface Closure<K, V> {
+        void execute(K key, V value);
+    }
+
+    public interface Transformer<K1, V1, K2, V2> {
+        Pair<K2, V2> transform(K1 k1, V1 v1);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/MessengerUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/MessengerUtils.java
new file mode 100644
index 0000000000..5b246d7c47
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/MessengerUtils.java
@@ -0,0 +1,355 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.app.Notification;
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+import android.os.Messenger;
+import android.os.RemoteException;
+import android.text.TextUtils;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/10
+ *     desc  : utils about messenger
+ * </pre>
+ */
+public class MessengerUtils {
+
+    private static ConcurrentHashMap<String, MessageCallback> subscribers = new ConcurrentHashMap<>();
+
+    private static Map<String, Client> sClientMap = new HashMap<>();
+    private static Client              sLocalClient;
+
+    private static final int    WHAT_SUBSCRIBE   = 0x00;
+    private static final int    WHAT_UNSUBSCRIBE = 0x01;
+    private static final int    WHAT_SEND        = 0x02;
+    private static final String KEY_STRING       = "MESSENGER_UTILS";
+
+    public static void register() {
+        if (UtilsBridge.isMainProcess()) {
+            if (UtilsBridge.isServiceRunning(ServerService.class.getName())) {
+                Log.i("MessengerUtils", "Server service is running.");
+                return;
+            }
+            startServiceCompat(new Intent(Utils.getApp(), ServerService.class));
+            return;
+        }
+        if (sLocalClient == null) {
+            Client client = new Client(null);
+            if (client.bind()) {
+                sLocalClient = client;
+            } else {
+                Log.e("MessengerUtils", "Bind service failed.");
+            }
+        } else {
+            Log.i("MessengerUtils", "The client have been bind.");
+        }
+    }
+
+    public static void unregister() {
+        if (UtilsBridge.isMainProcess()) {
+            if (!UtilsBridge.isServiceRunning(ServerService.class.getName())) {
+                Log.i("MessengerUtils", "Server service isn't running.");
+                return;
+            }
+            Intent intent = new Intent(Utils.getApp(), ServerService.class);
+            Utils.getApp().stopService(intent);
+        }
+        if (sLocalClient != null) {
+            sLocalClient.unbind();
+        }
+    }
+
+    public static void register(final String pkgName) {
+        if (sClientMap.containsKey(pkgName)) {
+            Log.i("MessengerUtils", "register: client registered: " + pkgName);
+            return;
+        }
+        Client client = new Client(pkgName);
+        if (client.bind()) {
+            sClientMap.put(pkgName, client);
+        } else {
+            Log.e("MessengerUtils", "register: client bind failed: " + pkgName);
+        }
+    }
+
+    public static void unregister(final String pkgName) {
+        if (!sClientMap.containsKey(pkgName)) {
+            Log.i("MessengerUtils", "unregister: client didn't register: " + pkgName);
+            return;
+        }
+        Client client = sClientMap.get(pkgName);
+        sClientMap.remove(pkgName);
+        if (client != null) {
+            client.unbind();
+        }
+    }
+
+    public static void subscribe(@NonNull final String key, @NonNull final MessageCallback callback) {
+        subscribers.put(key, callback);
+    }
+
+    public static void unsubscribe(@NonNull final String key) {
+        subscribers.remove(key);
+    }
+
+    public static void post(@NonNull String key, @NonNull Bundle data) {
+        data.putString(KEY_STRING, key);
+        if (sLocalClient != null) {
+            sLocalClient.sendMsg2Server(data);
+        } else {
+            Intent intent = new Intent(Utils.getApp(), ServerService.class);
+            intent.putExtras(data);
+            startServiceCompat(intent);
+        }
+        for (Client client : sClientMap.values()) {
+            client.sendMsg2Server(data);
+        }
+    }
+
+    private static void startServiceCompat(Intent intent) {
+        try {
+            intent.setFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                Utils.getApp().startForegroundService(intent);
+            } else {
+                Utils.getApp().startService(intent);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    static class Client {
+
+        String             mPkgName;
+        Messenger          mServer;
+        LinkedList<Bundle> mCached = new LinkedList<>();
+        @SuppressLint("HandlerLeak")
+        Handler mReceiveServeMsgHandler = new Handler() {
+            @Override
+            public void handleMessage(Message msg) {
+                Bundle data = msg.getData();
+                data.setClassLoader(MessengerUtils.class.getClassLoader());
+                String key = data.getString(KEY_STRING);
+                if (key != null) {
+                    MessageCallback callback = subscribers.get(key);
+                    if (callback != null) {
+                        callback.messageCall(data);
+                    }
+                }
+            }
+        };
+        Messenger         mClient = new Messenger(mReceiveServeMsgHandler);
+        ServiceConnection mConn   = new ServiceConnection() {
+
+            @Override
+            public void onServiceConnected(ComponentName name, IBinder service) {
+                Log.d("MessengerUtils", "client service connected " + name);
+                mServer = new Messenger(service);
+                int key = UtilsBridge.getCurrentProcessName().hashCode();
+                Message msg = Message.obtain(mReceiveServeMsgHandler, WHAT_SUBSCRIBE, key, 0);
+                msg.getData().setClassLoader(MessengerUtils.class.getClassLoader());
+                msg.replyTo = mClient;
+                try {
+                    mServer.send(msg);
+                } catch (RemoteException e) {
+                    e.printStackTrace();
+                }
+                sendCachedMsg2Server();
+            }
+
+            @Override
+            public void onServiceDisconnected(ComponentName name) {
+                Log.w("MessengerUtils", "client service disconnected:" + name);
+                mServer = null;
+                if (!bind()) {
+                    Log.e("MessengerUtils", "client service rebind failed: " + name);
+                }
+            }
+        };
+
+        Client(String pkgName) {
+            this.mPkgName = pkgName;
+        }
+
+        boolean bind() {
+            if (TextUtils.isEmpty(mPkgName)) {
+                Intent intent = new Intent(Utils.getApp(), ServerService.class);
+                return Utils.getApp().bindService(intent, mConn, Context.BIND_AUTO_CREATE);
+            }
+            if (UtilsBridge.isAppInstalled(mPkgName)) {
+                if (UtilsBridge.isAppRunning(mPkgName)) {
+                    Intent intent = new Intent(mPkgName + ".messenger");
+                    intent.setPackage(mPkgName);
+                    return Utils.getApp().bindService(intent, mConn, Context.BIND_AUTO_CREATE);
+                } else {
+                    Log.e("MessengerUtils", "bind: the app is not running -> " + mPkgName);
+                    return false;
+                }
+            } else {
+                Log.e("MessengerUtils", "bind: the app is not installed -> " + mPkgName);
+                return false;
+            }
+        }
+
+        void unbind() {
+            int key = UtilsBridge.getCurrentProcessName().hashCode();
+            Message msg = Message.obtain(mReceiveServeMsgHandler, WHAT_UNSUBSCRIBE, key, 0);
+            msg.replyTo = mClient;
+            try {
+                mServer.send(msg);
+            } catch (RemoteException e) {
+                e.printStackTrace();
+            }
+            try {
+                Utils.getApp().unbindService(mConn);
+            } catch (Exception ignore) {/*ignore*/}
+        }
+
+        void sendMsg2Server(Bundle bundle) {
+            if (mServer == null) {
+                mCached.addFirst(bundle);
+                Log.i("MessengerUtils", "save the bundle " + bundle);
+            } else {
+                sendCachedMsg2Server();
+                if (!send2Server(bundle)) {
+                    mCached.addFirst(bundle);
+                }
+            }
+        }
+
+        private void sendCachedMsg2Server() {
+            if (mCached.isEmpty()) return;
+            for (int i = mCached.size() - 1; i >= 0; --i) {
+                if (send2Server(mCached.get(i))) {
+                    mCached.remove(i);
+                }
+            }
+        }
+
+        private boolean send2Server(Bundle bundle) {
+            Message msg = Message.obtain(mReceiveServeMsgHandler, WHAT_SEND);
+            bundle.setClassLoader(MessengerUtils.class.getClassLoader());
+            msg.setData(bundle);
+            msg.replyTo = mClient;
+            try {
+                mServer.send(msg);
+                return true;
+            } catch (RemoteException e) {
+                e.printStackTrace();
+                return false;
+            }
+        }
+    }
+
+    public static class ServerService extends Service {
+
+        private final ConcurrentHashMap<Integer, Messenger> mClientMap = new ConcurrentHashMap<>();
+
+        @SuppressLint("HandlerLeak")
+        private final Handler mReceiveClientMsgHandler = new Handler() {
+            @Override
+            public void handleMessage(Message msg) {
+                switch (msg.what) {
+                    case WHAT_SUBSCRIBE:
+                        mClientMap.put(msg.arg1, msg.replyTo);
+                        break;
+                    case WHAT_SEND:
+                        sendMsg2Client(msg);
+                        consumeServerProcessCallback(msg);
+                        break;
+                    case WHAT_UNSUBSCRIBE:
+                        mClientMap.remove(msg.arg1);
+                        break;
+                    default:
+                        super.handleMessage(msg);
+                }
+            }
+        };
+
+        private final Messenger messenger = new Messenger(mReceiveClientMsgHandler);
+
+        @Nullable
+        @Override
+        public IBinder onBind(Intent intent) {
+            return messenger.getBinder();
+        }
+
+        @Override
+        public int onStartCommand(Intent intent, int flags, int startId) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                Notification notification = UtilsBridge.getNotification(
+                        NotificationUtils.ChannelConfig.DEFAULT_CHANNEL_CONFIG, null
+                );
+                startForeground(1, notification);
+            }
+            if (intent != null) {
+                Bundle extras = intent.getExtras();
+                if (extras != null) {
+                    Message msg = Message.obtain(mReceiveClientMsgHandler, WHAT_SEND);
+                    msg.replyTo = messenger;
+                    msg.setData(extras);
+                    sendMsg2Client(msg);
+                    consumeServerProcessCallback(msg);
+                }
+            }
+            return START_NOT_STICKY;
+        }
+
+        private void sendMsg2Client(final Message msg) {
+           final Message obtain = Message.obtain(msg); //Copy the original
+            for (Messenger client : mClientMap.values()) {
+                try {
+                    if (client != null) {
+                        client.send(Message.obtain(obtain));
+                    }
+                } catch (RemoteException e) {
+                    e.printStackTrace();
+                }
+            }
+            obtain.recycle(); //Recycled copy
+        }
+
+        private void consumeServerProcessCallback(final Message msg) {
+            Bundle data = msg.getData();
+            if (data != null) {
+                String key = data.getString(KEY_STRING);
+                if (key != null) {
+                    MessageCallback callback = subscribers.get(key);
+                    if (callback != null) {
+                        callback.messageCall(data);
+                    }
+                }
+            }
+        }
+    }
+
+    public interface MessageCallback {
+        void messageCall(Bundle data);
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
similarity index 98%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
index 6f6cf85b80..0ff8fa8798 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
@@ -8,7 +8,7 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ServiceInfo;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 /**
  * <pre>
@@ -118,7 +118,7 @@ public static String getMetaDataInService(@NonNull final Class<? extends Service
      */
     public static String getMetaDataInReceiver(@NonNull final BroadcastReceiver receiver,
                                                @NonNull final String key) {
-        return getMetaDataInReceiver(receiver, key);
+        return getMetaDataInReceiver(receiver.getClass(), key);
     }
 
     /**
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
new file mode 100644
index 0000000000..e73b6487db
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
@@ -0,0 +1,1063 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.ConnectivityManager;
+import android.net.NetworkCapabilities;
+import android.net.NetworkInfo;
+import android.net.wifi.ScanResult;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
+import android.os.Build;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+import android.text.format.Formatter;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresPermission;
+
+import java.lang.reflect.Method;
+import java.net.InetAddress;
+import java.net.InterfaceAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.CopyOnWriteArraySet;
+
+import static android.Manifest.permission.ACCESS_COARSE_LOCATION;
+import static android.Manifest.permission.ACCESS_NETWORK_STATE;
+import static android.Manifest.permission.ACCESS_WIFI_STATE;
+import static android.Manifest.permission.CHANGE_WIFI_STATE;
+import static android.Manifest.permission.INTERNET;
+import static android.content.Context.WIFI_SERVICE;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/02
+ *     desc  : utils about network
+ * </pre>
+ */
+public final class NetworkUtils {
+
+    private NetworkUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    public enum NetworkType {
+        NETWORK_ETHERNET,
+        NETWORK_WIFI,
+        NETWORK_5G,
+        NETWORK_4G,
+        NETWORK_3G,
+        NETWORK_2G,
+        NETWORK_UNKNOWN,
+        NETWORK_NO
+    }
+
+    /**
+     * Open the settings of wireless.
+     */
+    public static void openWirelessSettings() {
+        Utils.getApp().startActivity(
+                new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS)
+                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+        );
+    }
+
+    /**
+     * Return whether network is connected.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return {@code true}: connected<br>{@code false}: disconnected
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static boolean isConnected() {
+        NetworkInfo info = getActiveNetworkInfo();
+        return info != null && info.isConnected();
+    }
+
+    /**
+     * Return whether network is available.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param consumer The consumer.
+     * @return the task
+     */
+    @RequiresPermission(INTERNET)
+    public static Utils.Task<Boolean> isAvailableAsync(@NonNull final Utils.Consumer<Boolean> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<Boolean>(consumer) {
+            @RequiresPermission(INTERNET)
+            @Override
+            public Boolean doInBackground() {
+                return isAvailable();
+            }
+        });
+    }
+
+    /**
+     * Return whether network is available.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(INTERNET)
+    public static boolean isAvailable() {
+        return isAvailableByDns() || isAvailableByPing(null);
+    }
+
+    /**
+     * Return whether network is available using ping.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     * <p>The default ping ip: 223.5.5.5</p>
+     *
+     * @param consumer The consumer.
+     */
+    @RequiresPermission(INTERNET)
+    public static void isAvailableByPingAsync(final Utils.Consumer<Boolean> consumer) {
+        isAvailableByPingAsync("", consumer);
+    }
+
+    /**
+     * Return whether network is available using ping.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param ip       The ip address.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    @RequiresPermission(INTERNET)
+    public static Utils.Task<Boolean> isAvailableByPingAsync(final String ip,
+                                                             @NonNull final Utils.Consumer<Boolean> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<Boolean>(consumer) {
+            @RequiresPermission(INTERNET)
+            @Override
+            public Boolean doInBackground() {
+                return isAvailableByPing(ip);
+            }
+        });
+    }
+
+    /**
+     * Return whether network is available using ping.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     * <p>The default ping ip: 223.5.5.5</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(INTERNET)
+    public static boolean isAvailableByPing() {
+        return isAvailableByPing("");
+    }
+
+    /**
+     * Return whether network is available using ping.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param ip The ip address.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(INTERNET)
+    public static boolean isAvailableByPing(final String ip) {
+        final String realIp = TextUtils.isEmpty(ip) ? "223.5.5.5" : ip;
+        ShellUtils.CommandResult result = ShellUtils.execCmd(String.format("ping -c 1 %s", realIp), false);
+        return result.result == 0;
+    }
+
+    /**
+     * Return whether network is available using domain.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param consumer The consumer.
+     */
+    @RequiresPermission(INTERNET)
+    public static void isAvailableByDnsAsync(final Utils.Consumer<Boolean> consumer) {
+        isAvailableByDnsAsync("", consumer);
+    }
+
+    /**
+     * Return whether network is available using domain.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param domain   The name of domain.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    @RequiresPermission(INTERNET)
+    public static Utils.Task isAvailableByDnsAsync(final String domain,
+                                                   @NonNull final Utils.Consumer<Boolean> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<Boolean>(consumer) {
+            @RequiresPermission(INTERNET)
+            @Override
+            public Boolean doInBackground() {
+                return isAvailableByDns(domain);
+            }
+        });
+    }
+
+    /**
+     * Return whether network is available using domain.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(INTERNET)
+    public static boolean isAvailableByDns() {
+        return isAvailableByDns("");
+    }
+
+    /**
+     * Return whether network is available using domain.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param domain The name of domain.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(INTERNET)
+    public static boolean isAvailableByDns(final String domain) {
+        final String realDomain = TextUtils.isEmpty(domain) ? "www.baidu.com" : domain;
+        InetAddress inetAddress;
+        try {
+            inetAddress = InetAddress.getByName(realDomain);
+            return inetAddress != null;
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Return whether mobile data is enabled.
+     *
+     * @return {@code true}: enabled<br>{@code false}: disabled
+     */
+    public static boolean getMobileDataEnabled() {
+        try {
+            TelephonyManager tm =
+                    (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
+            if (tm == null) return false;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                return tm.isDataEnabled();
+            }
+            @SuppressLint("PrivateApi")
+            Method getMobileDataEnabledMethod =
+                    tm.getClass().getDeclaredMethod("getDataEnabled");
+            if (null != getMobileDataEnabledMethod) {
+                return (boolean) getMobileDataEnabledMethod.invoke(tm);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return false;
+    }
+    
+     /**
+     * Returns true if device is connecting to the internet via a proxy, works for both Wi-Fi and Mobile Data.
+     *
+     * @return true if using proxy to connect to the internet.
+     */
+    public static boolean isBehindProxy(){
+        return !(System.getProperty("http.proxyHost") == null || System.getProperty("http.proxyPort") == null);
+    }
+
+    /**
+     * Returns true if device is connecting to the internet via a VPN.
+     *
+     * @return true if using VPN to conncet to the internet.
+     */
+    public static boolean isUsingVPN(){
+        ConnectivityManager cm = (ConnectivityManager) com.blankj.utilcode.util.Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            return cm.getNetworkInfo(ConnectivityManager.TYPE_VPN).isConnectedOrConnecting();
+        } else {
+            return cm.getNetworkInfo(NetworkCapabilities.TRANSPORT_VPN).isConnectedOrConnecting();
+        }
+    }
+
+    
+    
+    
+    
+
+    /**
+     * Return whether using mobile data.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static boolean isMobileData() {
+        NetworkInfo info = getActiveNetworkInfo();
+        return null != info
+                && info.isAvailable()
+                && info.getType() == ConnectivityManager.TYPE_MOBILE;
+    }
+
+    /**
+     * Return whether using 4G.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static boolean is4G() {
+        NetworkInfo info = getActiveNetworkInfo();
+        return info != null
+                && info.isAvailable()
+                && info.getSubtype() == TelephonyManager.NETWORK_TYPE_LTE;
+    }
+
+    /**
+     * Return whether using 4G.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static boolean is5G() {
+        NetworkInfo info = getActiveNetworkInfo();
+        return info != null
+                && info.isAvailable()
+                && info.getSubtype() == TelephonyManager.NETWORK_TYPE_NR;
+    }
+
+    /**
+     * Return whether wifi is enabled.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />}</p>
+     *
+     * @return {@code true}: enabled<br>{@code false}: disabled
+     */
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    public static boolean getWifiEnabled() {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager manager = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
+        if (manager == null) return false;
+        return manager.isWifiEnabled();
+    }
+
+    /**
+     * Enable or disable wifi.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />}</p>
+     *
+     * @param enabled True to enabled, false otherwise.
+     */
+    @RequiresPermission(CHANGE_WIFI_STATE)
+    public static void setWifiEnabled(final boolean enabled) {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager manager = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
+        if (manager == null) return;
+        if (enabled == manager.isWifiEnabled()) return;
+        manager.setWifiEnabled(enabled);
+    }
+
+    /**
+     * Return whether wifi is connected.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return {@code true}: connected<br>{@code false}: disconnected
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static boolean isWifiConnected() {
+        ConnectivityManager cm =
+                (ConnectivityManager) Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
+        if (cm == null) return false;
+        NetworkInfo ni = cm.getActiveNetworkInfo();
+        return ni != null && ni.getType() == ConnectivityManager.TYPE_WIFI;
+    }
+
+    /**
+     * Return whether wifi is available.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
+     * {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @return {@code true}: available<br>{@code false}: unavailable
+     */
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET})
+    public static boolean isWifiAvailable() {
+        return getWifiEnabled() && isAvailable();
+    }
+
+    /**
+     * Return whether wifi is available.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
+     * {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param consumer The consumer.
+     * @return the task
+     */
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET})
+    public static Utils.Task<Boolean> isWifiAvailableAsync(@NonNull final Utils.Consumer<Boolean> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<Boolean>(consumer) {
+            @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET})
+            @Override
+            public Boolean doInBackground() {
+                return isWifiAvailable();
+            }
+        });
+    }
+
+    /**
+     * Return the name of network operate.
+     *
+     * @return the name of network operate
+     */
+    public static String getNetworkOperatorName() {
+        TelephonyManager tm =
+                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
+        if (tm == null) return "";
+        return tm.getNetworkOperatorName();
+    }
+
+    /**
+     * Return type of network.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return type of network
+     * <ul>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_ETHERNET} </li>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_WIFI    } </li>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_4G      } </li>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_3G      } </li>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_2G      } </li>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_UNKNOWN } </li>
+     * <li>{@link NetworkUtils.NetworkType#NETWORK_NO      } </li>
+     * </ul>
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static NetworkType getNetworkType() {
+        if (isEthernet()) {
+            return NetworkType.NETWORK_ETHERNET;
+        }
+        NetworkInfo info = getActiveNetworkInfo();
+        if (info != null && info.isAvailable()) {
+            if (info.getType() == ConnectivityManager.TYPE_WIFI) {
+                return NetworkType.NETWORK_WIFI;
+            } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
+                switch (info.getSubtype()) {
+                    case TelephonyManager.NETWORK_TYPE_GSM:
+                    case TelephonyManager.NETWORK_TYPE_GPRS:
+                    case TelephonyManager.NETWORK_TYPE_CDMA:
+                    case TelephonyManager.NETWORK_TYPE_EDGE:
+                    case TelephonyManager.NETWORK_TYPE_1xRTT:
+                    case TelephonyManager.NETWORK_TYPE_IDEN:
+                        return NetworkType.NETWORK_2G;
+
+                    case TelephonyManager.NETWORK_TYPE_TD_SCDMA:
+                    case TelephonyManager.NETWORK_TYPE_EVDO_A:
+                    case TelephonyManager.NETWORK_TYPE_UMTS:
+                    case TelephonyManager.NETWORK_TYPE_EVDO_0:
+                    case TelephonyManager.NETWORK_TYPE_HSDPA:
+                    case TelephonyManager.NETWORK_TYPE_HSUPA:
+                    case TelephonyManager.NETWORK_TYPE_HSPA:
+                    case TelephonyManager.NETWORK_TYPE_EVDO_B:
+                    case TelephonyManager.NETWORK_TYPE_EHRPD:
+                    case TelephonyManager.NETWORK_TYPE_HSPAP:
+                        return NetworkType.NETWORK_3G;
+
+                    case TelephonyManager.NETWORK_TYPE_IWLAN:
+                    case TelephonyManager.NETWORK_TYPE_LTE:
+                        return NetworkType.NETWORK_4G;
+
+                    case TelephonyManager.NETWORK_TYPE_NR:
+                        return NetworkType.NETWORK_5G;
+                    default:
+                        String subtypeName = info.getSubtypeName();
+                        if (subtypeName.equalsIgnoreCase("TD-SCDMA")
+                                || subtypeName.equalsIgnoreCase("WCDMA")
+                                || subtypeName.equalsIgnoreCase("CDMA2000")) {
+                            return NetworkType.NETWORK_3G;
+                        } else {
+                            return NetworkType.NETWORK_UNKNOWN;
+                        }
+                }
+            } else {
+                return NetworkType.NETWORK_UNKNOWN;
+            }
+        }
+        return NetworkType.NETWORK_NO;
+    }
+
+    /**
+     * Return whether using ethernet.
+     * <p>Must hold
+     * {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    private static boolean isEthernet() {
+        final ConnectivityManager cm =
+                (ConnectivityManager) Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
+        if (cm == null) return false;
+        final NetworkInfo info = cm.getNetworkInfo(ConnectivityManager.TYPE_ETHERNET);
+        if (info == null) return false;
+        NetworkInfo.State state = info.getState();
+        if (null == state) return false;
+        return state == NetworkInfo.State.CONNECTED || state == NetworkInfo.State.CONNECTING;
+    }
+
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    private static NetworkInfo getActiveNetworkInfo() {
+        ConnectivityManager cm =
+                (ConnectivityManager) Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
+        if (cm == null) return null;
+        return cm.getActiveNetworkInfo();
+    }
+
+    /**
+     * Return the ip address.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param useIPv4  True to use ipv4, false otherwise.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    public static Utils.Task<String> getIPAddressAsync(final boolean useIPv4,
+                                                       @NonNull final Utils.Consumer<String> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<String>(consumer) {
+            @RequiresPermission(INTERNET)
+            @Override
+            public String doInBackground() {
+                return getIPAddress(useIPv4);
+            }
+        });
+    }
+
+    /**
+     * Return the ip address.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param useIPv4 True to use ipv4, false otherwise.
+     * @return the ip address
+     */
+    @RequiresPermission(INTERNET)
+    public static String getIPAddress(final boolean useIPv4) {
+        try {
+            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
+            LinkedList<InetAddress> adds = new LinkedList<>();
+            while (nis.hasMoreElements()) {
+                NetworkInterface ni = nis.nextElement();
+                // To prevent phone of xiaomi return "10.0.2.15"
+                if (!ni.isUp() || ni.isLoopback()) continue;
+                Enumeration<InetAddress> addresses = ni.getInetAddresses();
+                while (addresses.hasMoreElements()) {
+                    adds.addFirst(addresses.nextElement());
+                }
+            }
+            for (InetAddress add : adds) {
+                if (!add.isLoopbackAddress()) {
+                    String hostAddress = add.getHostAddress();
+                    boolean isIPv4 = hostAddress.indexOf(':') < 0;
+                    if (useIPv4) {
+                        if (isIPv4) return hostAddress;
+                    } else {
+                        if (!isIPv4) {
+                            int index = hostAddress.indexOf('%');
+                            return index < 0
+                                    ? hostAddress.toUpperCase()
+                                    : hostAddress.substring(0, index).toUpperCase();
+                        }
+                    }
+                }
+            }
+        } catch (SocketException e) {
+            e.printStackTrace();
+        }
+        return "";
+    }
+
+    /**
+     * Return the ip address of broadcast.
+     *
+     * @return the ip address of broadcast
+     */
+    public static String getBroadcastIpAddress() {
+        try {
+            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
+            LinkedList<InetAddress> adds = new LinkedList<>();
+            while (nis.hasMoreElements()) {
+                NetworkInterface ni = nis.nextElement();
+                if (!ni.isUp() || ni.isLoopback()) continue;
+                List<InterfaceAddress> ias = ni.getInterfaceAddresses();
+                for (int i = 0, size = ias.size(); i < size; i++) {
+                    InterfaceAddress ia = ias.get(i);
+                    InetAddress broadcast = ia.getBroadcast();
+                    if (broadcast != null) {
+                        return broadcast.getHostAddress();
+                    }
+                }
+            }
+        } catch (SocketException e) {
+            e.printStackTrace();
+        }
+        return "";
+    }
+
+    /**
+     * Return the domain address.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param domain   The name of domain.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    @RequiresPermission(INTERNET)
+    public static Utils.Task<String> getDomainAddressAsync(final String domain,
+                                                           @NonNull final Utils.Consumer<String> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<String>(consumer) {
+            @RequiresPermission(INTERNET)
+            @Override
+            public String doInBackground() {
+                return getDomainAddress(domain);
+            }
+        });
+    }
+
+    /**
+     * Return the domain address.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
+     *
+     * @param domain The name of domain.
+     * @return the domain address
+     */
+    @RequiresPermission(INTERNET)
+    public static String getDomainAddress(final String domain) {
+        InetAddress inetAddress;
+        try {
+            inetAddress = InetAddress.getByName(domain);
+            return inetAddress.getHostAddress();
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * Return the ip address by wifi.
+     *
+     * @return the ip address by wifi
+     */
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    public static String getIpAddressByWifi() {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
+        if (wm == null) return "";
+        return Formatter.formatIpAddress(wm.getDhcpInfo().ipAddress);
+    }
+
+    /**
+     * Return the gate way by wifi.
+     *
+     * @return the gate way by wifi
+     */
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    public static String getGatewayByWifi() {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
+        if (wm == null) return "";
+        return Formatter.formatIpAddress(wm.getDhcpInfo().gateway);
+    }
+
+    /**
+     * Return the net mask by wifi.
+     *
+     * @return the net mask by wifi
+     */
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    public static String getNetMaskByWifi() {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
+        if (wm == null) return "";
+        return Formatter.formatIpAddress(wm.getDhcpInfo().netmask);
+    }
+
+    /**
+     * Return the server address by wifi.
+     *
+     * @return the server address by wifi
+     */
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    public static String getServerAddressByWifi() {
+        @SuppressLint("WifiManagerLeak")
+        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
+        if (wm == null) return "";
+        return Formatter.formatIpAddress(wm.getDhcpInfo().serverAddress);
+    }
+
+    /**
+     * Return the ssid.
+     *
+     * @return the ssid.
+     */
+    @RequiresPermission(ACCESS_WIFI_STATE)
+    public static String getSSID() {
+        WifiManager wm = (WifiManager) Utils.getApp().getApplicationContext().getSystemService(WIFI_SERVICE);
+        if (wm == null) return "";
+        WifiInfo wi = wm.getConnectionInfo();
+        if (wi == null) return "";
+        String ssid = wi.getSSID();
+        if (TextUtils.isEmpty(ssid)) {
+            return "";
+        }
+        if (ssid.length() > 2 && ssid.charAt(0) == '"' && ssid.charAt(ssid.length() - 1) == '"') {
+            return ssid.substring(1, ssid.length() - 1);
+        }
+        return ssid;
+    }
+
+    /**
+     * Register the status of network changed listener.
+     *
+     * @param listener The status of network changed listener
+     */
+    @RequiresPermission(ACCESS_NETWORK_STATE)
+    public static void registerNetworkStatusChangedListener(final OnNetworkStatusChangedListener listener) {
+        NetworkChangedReceiver.getInstance().registerListener(listener);
+    }
+
+    /**
+     * Return whether the status of network changed listener has been registered.
+     *
+     * @param listener The listener
+     * @return true to registered, false otherwise.
+     */
+    public static boolean isRegisteredNetworkStatusChangedListener(final OnNetworkStatusChangedListener listener) {
+        return NetworkChangedReceiver.getInstance().isRegistered(listener);
+    }
+
+    /**
+     * Unregister the status of network changed listener.
+     *
+     * @param listener The status of network changed listener.
+     */
+    public static void unregisterNetworkStatusChangedListener(final OnNetworkStatusChangedListener listener) {
+        NetworkChangedReceiver.getInstance().unregisterListener(listener);
+    }
+
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, ACCESS_COARSE_LOCATION})
+    public static WifiScanResults getWifiScanResult() {
+        WifiScanResults result = new WifiScanResults();
+        if (!getWifiEnabled()) return result;
+        @SuppressLint("WifiManagerLeak")
+        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
+        //noinspection ConstantConditions
+        List<ScanResult> results = wm.getScanResults();
+        if (results != null) {
+            result.setAllResults(results);
+        }
+        return result;
+    }
+
+    private static final long                                 SCAN_PERIOD_MILLIS    = 3000;
+    private static final Set<Utils.Consumer<WifiScanResults>> SCAN_RESULT_CONSUMERS = new CopyOnWriteArraySet<>();
+    private static       Timer                                sScanWifiTimer;
+    private static       WifiScanResults                      sPreWifiScanResults;
+
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, CHANGE_WIFI_STATE, ACCESS_COARSE_LOCATION})
+    public static void addOnWifiChangedConsumer(final Utils.Consumer<WifiScanResults> consumer) {
+        if (consumer == null) return;
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (SCAN_RESULT_CONSUMERS.isEmpty()) {
+                    SCAN_RESULT_CONSUMERS.add(consumer);
+                    startScanWifi();
+                    return;
+                }
+                consumer.accept(sPreWifiScanResults);
+                SCAN_RESULT_CONSUMERS.add(consumer);
+            }
+        });
+    }
+
+    private static void startScanWifi() {
+        sPreWifiScanResults = new WifiScanResults();
+        sScanWifiTimer = new Timer();
+        sScanWifiTimer.schedule(new TimerTask() {
+            @RequiresPermission(allOf = {ACCESS_WIFI_STATE, CHANGE_WIFI_STATE, ACCESS_COARSE_LOCATION})
+            @Override
+            public void run() {
+                startScanWifiIfEnabled();
+                WifiScanResults scanResults = getWifiScanResult();
+                if (isSameScanResults(sPreWifiScanResults.allResults, scanResults.allResults)) {
+                    return;
+                }
+                sPreWifiScanResults = scanResults;
+                UtilsBridge.runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        for (Utils.Consumer<WifiScanResults> consumer : SCAN_RESULT_CONSUMERS) {
+                            consumer.accept(sPreWifiScanResults);
+                        }
+                    }
+                });
+            }
+        }, 0, SCAN_PERIOD_MILLIS);
+    }
+
+    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, CHANGE_WIFI_STATE})
+    private static void startScanWifiIfEnabled() {
+        if (!getWifiEnabled()) return;
+        @SuppressLint("WifiManagerLeak")
+        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
+        //noinspection ConstantConditions
+        wm.startScan();
+    }
+
+    public static void removeOnWifiChangedConsumer(final Utils.Consumer<WifiScanResults> consumer) {
+        if (consumer == null) return;
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                SCAN_RESULT_CONSUMERS.remove(consumer);
+                if (SCAN_RESULT_CONSUMERS.isEmpty()) {
+                    stopScanWifi();
+                }
+            }
+        });
+    }
+
+    private static void stopScanWifi() {
+        if (sScanWifiTimer != null) {
+            sScanWifiTimer.cancel();
+            sScanWifiTimer = null;
+        }
+    }
+
+    private static boolean isSameScanResults(List<ScanResult> l1, List<ScanResult> l2) {
+        if (l1 == null && l2 == null) {
+            return true;
+        }
+        if (l1 == null || l2 == null) {
+            return false;
+        }
+        if (l1.size() != l2.size()) {
+            return false;
+        }
+        for (int i = 0; i < l1.size(); i++) {
+            ScanResult r1 = l1.get(i);
+            ScanResult r2 = l2.get(i);
+            if (!isSameScanResultContent(r1, r2)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private static boolean isSameScanResultContent(ScanResult r1, ScanResult r2) {
+        return r1 != null && r2 != null && UtilsBridge.equals(r1.BSSID, r2.BSSID)
+                && UtilsBridge.equals(r1.SSID, r2.SSID)
+                && UtilsBridge.equals(r1.capabilities, r2.capabilities)
+                && r1.level == r2.level;
+    }
+
+    public static final class NetworkChangedReceiver extends BroadcastReceiver {
+
+        private static NetworkChangedReceiver getInstance() {
+            return LazyHolder.INSTANCE;
+        }
+
+        private NetworkType                         mType;
+        private Set<OnNetworkStatusChangedListener> mListeners = new HashSet<>();
+
+        @RequiresPermission(ACCESS_NETWORK_STATE)
+        void registerListener(final OnNetworkStatusChangedListener listener) {
+            if (listener == null) return;
+            UtilsBridge.runOnUiThread(new Runnable() {
+                @Override
+                @RequiresPermission(ACCESS_NETWORK_STATE)
+                public void run() {
+                    int preSize = mListeners.size();
+                    mListeners.add(listener);
+                    if (preSize == 0 && mListeners.size() == 1) {
+                        mType = getNetworkType();
+                        IntentFilter intentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
+                        Utils.getApp().registerReceiver(NetworkChangedReceiver.getInstance(), intentFilter);
+                    }
+                }
+            });
+        }
+
+        boolean isRegistered(final OnNetworkStatusChangedListener listener) {
+            if (listener == null) return false;
+            return mListeners.contains(listener);
+        }
+
+        void unregisterListener(final OnNetworkStatusChangedListener listener) {
+            if (listener == null) return;
+            UtilsBridge.runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    int preSize = mListeners.size();
+                    mListeners.remove(listener);
+                    if (preSize == 1 && mListeners.size() == 0) {
+                        Utils.getApp().unregisterReceiver(NetworkChangedReceiver.getInstance());
+                    }
+                }
+            });
+        }
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) {
+                // debouncing
+                UtilsBridge.runOnUiThreadDelayed(new Runnable() {
+                    @Override
+                    @RequiresPermission(ACCESS_NETWORK_STATE)
+                    public void run() {
+                        NetworkType networkType = NetworkUtils.getNetworkType();
+                        if (mType == networkType) return;
+                        mType = networkType;
+                        if (networkType == NetworkType.NETWORK_NO) {
+                            for (OnNetworkStatusChangedListener listener : mListeners) {
+                                listener.onDisconnected();
+                            }
+                        } else {
+                            for (OnNetworkStatusChangedListener listener : mListeners) {
+                                listener.onConnected(networkType);
+                            }
+                        }
+                    }
+                }, 1000);
+            }
+        }
+
+        private static class LazyHolder {
+            private static final NetworkChangedReceiver INSTANCE = new NetworkChangedReceiver();
+        }
+    }
+
+//    /**
+//     * Register the status of network changed listener.
+//     */
+//    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+//    @RequiresPermission(ACCESS_NETWORK_STATE)
+//    public static void registerNetworkStatusChangedListener() {
+//        ConnectivityManager cm = (ConnectivityManager) Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
+//        if (cm == null) return;
+//        NetworkCallbackImpl networkCallback = NetworkCallbackImpl.LazyHolder.INSTANCE;
+//        NetworkRequest.Builder builder = new NetworkRequest.Builder();
+//        NetworkRequest request = builder.build();
+//        cm.registerNetworkCallback(new NetworkRequest.Builder().build(), networkCallback);
+//    }
+//
+//
+//    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+//    public static final class NetworkCallbackImpl extends ConnectivityManager.NetworkCallback {
+//
+//        @Override
+//        public void onAvailable(@NonNull Network network) {
+//            super.onAvailable(network);
+//            LogUtils.d(TAG, "onAvailable: " + network);
+//        }
+//
+//        @Override
+//        public void onLosing(@NonNull Network network, int maxMsToLive) {
+//            super.onLosing(network, maxMsToLive);
+//            LogUtils.d(TAG, "onLosing: " + network);
+//        }
+//
+//        @Override
+//        public void onLost(@NonNull Network network) {
+//            super.onLost(network);
+//            LogUtils.e(TAG, "onLost: " + network);
+//        }
+//
+//        @Override
+//        public void onUnavailable() {
+//            super.onUnavailable();
+//            LogUtils.e(TAG, "onUnavailable");
+//        }
+//
+//        @Override
+//        public void onCapabilitiesChanged(@NonNull Network network, @NonNull NetworkCapabilities cap) {
+//            super.onCapabilitiesChanged(network, cap);
+//            if (cap.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) {
+//                if (cap.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
+//                    LogUtils.d(TAG, "onCapabilitiesChanged: 网络类型为wifi");
+//                } else if (cap.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
+//                    LogUtils.d(TAG, "onCapabilitiesChanged: 蜂窝网络");
+//                } else {
+//                    LogUtils.d(TAG, "onCapabilitiesChanged: 其他网络");
+//                }
+//                LogUtils.d(TAG, "onCapabilitiesChanged: " + network + ", " + cap);
+//            }
+//        }
+//
+//        @Override
+//        public void onLinkPropertiesChanged(@NonNull Network network, @NonNull LinkProperties lp) {
+//            super.onLinkPropertiesChanged(network, lp);
+//            LogUtils.d(TAG, "onLinkPropertiesChanged: " + network + ", " + lp);
+//        }
+//
+//        @Override
+//        public void onBlockedStatusChanged(@NonNull Network network, boolean blocked) {
+//            super.onBlockedStatusChanged(network, blocked);
+//            LogUtils.d(TAG, "onBlockedStatusChanged: " + network + ", " + blocked);
+//        }
+//
+//        private static class LazyHolder {
+//            private static final NetworkCallbackImpl INSTANCE = new NetworkCallbackImpl();
+//        }
+//    }
+
+    public interface OnNetworkStatusChangedListener {
+        void onDisconnected();
+
+        void onConnected(NetworkType networkType);
+    }
+
+    public static final class WifiScanResults {
+
+        private List<ScanResult> allResults    = new ArrayList<>();
+        private List<ScanResult> filterResults = new ArrayList<>();
+
+        public WifiScanResults() {
+        }
+
+        public List<ScanResult> getAllResults() {
+            return allResults;
+        }
+
+        public List<ScanResult> getFilterResults() {
+            return filterResults;
+        }
+
+        public void setAllResults(List<ScanResult> allResults) {
+            this.allResults = allResults;
+            filterResults = filterScanResult(allResults);
+        }
+
+        private static List<ScanResult> filterScanResult(final List<ScanResult> results) {
+            if (results == null || results.isEmpty()) {
+                return new ArrayList<>();
+            }
+            LinkedHashMap<String, ScanResult> map = new LinkedHashMap<>(results.size());
+            for (ScanResult result : results) {
+                if (TextUtils.isEmpty(result.SSID)) {
+                    continue;
+                }
+                ScanResult resultInMap = map.get(result.SSID);
+                if (resultInMap != null && resultInMap.level >= result.level) {
+                    continue;
+                }
+                map.put(result.SSID, result);
+            }
+            return new ArrayList<>(map.values());
+        }
+
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java
new file mode 100644
index 0000000000..cea486d094
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java
@@ -0,0 +1,338 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.media.AudioAttributes;
+import android.net.Uri;
+import android.os.Build;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.reflect.Method;
+
+import androidx.annotation.IntDef;
+import androidx.annotation.RequiresPermission;
+import androidx.core.app.NotificationCompat;
+import androidx.core.app.NotificationManagerCompat;
+
+import static android.Manifest.permission.EXPAND_STATUS_BAR;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/20
+ *     desc  : utils about notification
+ * </pre>
+ */
+public class NotificationUtils {
+
+    public static final int IMPORTANCE_UNSPECIFIED = -1000;
+    public static final int IMPORTANCE_NONE        = 0;
+    public static final int IMPORTANCE_MIN         = 1;
+    public static final int IMPORTANCE_LOW         = 2;
+    public static final int IMPORTANCE_DEFAULT     = 3;
+    public static final int IMPORTANCE_HIGH        = 4;
+
+    @IntDef({IMPORTANCE_UNSPECIFIED, IMPORTANCE_NONE, IMPORTANCE_MIN, IMPORTANCE_LOW, IMPORTANCE_DEFAULT, IMPORTANCE_HIGH})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Importance {
+    }
+
+    /**
+     * Return whether the notifications enabled.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean areNotificationsEnabled() {
+        return NotificationManagerCompat.from(Utils.getApp()).areNotificationsEnabled();
+    }
+
+    /**
+     * Post a notification to be shown in the status bar.
+     *
+     * @param id       An identifier for this notification.
+     * @param consumer The consumer of create the builder of notification.
+     */
+    public static void notify(int id, Utils.Consumer<NotificationCompat.Builder> consumer) {
+        notify(null, id, ChannelConfig.DEFAULT_CHANNEL_CONFIG, consumer);
+    }
+
+    /**
+     * Post a notification to be shown in the status bar.
+     *
+     * @param tag      A string identifier for this notification.  May be {@code null}.
+     * @param id       An identifier for this notification.
+     * @param consumer The consumer of create the builder of notification.
+     */
+    public static void notify(String tag, int id, Utils.Consumer<NotificationCompat.Builder> consumer) {
+        notify(tag, id, ChannelConfig.DEFAULT_CHANNEL_CONFIG, consumer);
+    }
+
+    /**
+     * Post a notification to be shown in the status bar.
+     *
+     * @param id            An identifier for this notification.
+     * @param channelConfig The notification channel of config.
+     * @param consumer      The consumer of create the builder of notification.
+     */
+    public static void notify(int id, ChannelConfig channelConfig, Utils.Consumer<NotificationCompat.Builder> consumer) {
+        notify(null, id, channelConfig, consumer);
+    }
+
+    /**
+     * Post a notification to be shown in the status bar.
+     *
+     * @param tag           A string identifier for this notification.  May be {@code null}.
+     * @param id            An identifier for this notification.
+     * @param channelConfig The notification channel of config.
+     * @param consumer      The consumer of create the builder of notification.
+     */
+    public static void notify(String tag, int id, ChannelConfig channelConfig, Utils.Consumer<NotificationCompat.Builder> consumer) {
+        NotificationManagerCompat.from(Utils.getApp()).notify(tag, id, getNotification(channelConfig, consumer));
+    }
+
+
+    public static Notification getNotification(ChannelConfig channelConfig, Utils.Consumer<NotificationCompat.Builder> consumer) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationManager nm = (NotificationManager) Utils.getApp().getSystemService(Context.NOTIFICATION_SERVICE);
+            //noinspection ConstantConditions
+            nm.createNotificationChannel(channelConfig.getNotificationChannel());
+        }
+
+        NotificationCompat.Builder builder = new NotificationCompat.Builder(Utils.getApp());
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            builder.setChannelId(channelConfig.mNotificationChannel.getId());
+        }
+        if (consumer != null) {
+            consumer.accept(builder);
+        }
+
+        return builder.build();
+    }
+
+    /**
+     * Cancel The notification.
+     *
+     * @param tag The tag for the notification will be cancelled.
+     * @param id  The identifier for the notification will be cancelled.
+     */
+    public static void cancel(String tag, final int id) {
+        NotificationManagerCompat.from(Utils.getApp()).cancel(tag, id);
+    }
+
+    /**
+     * Cancel The notification.
+     *
+     * @param id The identifier for the notification will be cancelled.
+     */
+    public static void cancel(final int id) {
+        NotificationManagerCompat.from(Utils.getApp()).cancel(id);
+    }
+
+    /**
+     * Cancel all of the notifications.
+     */
+    public static void cancelAll() {
+        NotificationManagerCompat.from(Utils.getApp()).cancelAll();
+    }
+
+    /**
+     * Set the notification bar's visibility.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />}</p>
+     *
+     * @param isVisible True to set notification bar visible, false otherwise.
+     */
+    @RequiresPermission(EXPAND_STATUS_BAR)
+    public static void setNotificationBarVisibility(final boolean isVisible) {
+        String methodName;
+        if (isVisible) {
+            methodName = (Build.VERSION.SDK_INT <= 16) ? "expand" : "expandNotificationsPanel";
+        } else {
+            methodName = (Build.VERSION.SDK_INT <= 16) ? "collapse" : "collapsePanels";
+        }
+        invokePanels(methodName);
+    }
+
+    private static void invokePanels(final String methodName) {
+        try {
+            @SuppressLint("WrongConstant")
+            Object service = Utils.getApp().getSystemService("statusbar");
+            @SuppressLint("PrivateApi")
+            Class<?> statusBarManager = Class.forName("android.app.StatusBarManager");
+            Method expand = statusBarManager.getMethod(methodName);
+            expand.invoke(service);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static class ChannelConfig {
+
+        public static final ChannelConfig DEFAULT_CHANNEL_CONFIG = new ChannelConfig(
+                Utils.getApp().getPackageName(), Utils.getApp().getPackageName(), IMPORTANCE_DEFAULT
+        );
+
+        private NotificationChannel mNotificationChannel;
+
+        public ChannelConfig(String id, CharSequence name, @Importance int importance) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel = new NotificationChannel(id, name, importance);
+            }
+        }
+
+        public NotificationChannel getNotificationChannel() {
+            return mNotificationChannel;
+        }
+
+        /**
+         * Sets whether or not notifications posted to this channel can interrupt the user in
+         * {@link android.app.NotificationManager.Policy#INTERRUPTION_FILTER_PRIORITY} mode.
+         * <p>
+         * Only modifiable by the system and notification ranker.
+         */
+        public ChannelConfig setBypassDnd(boolean bypassDnd) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setBypassDnd(bypassDnd);
+            }
+            return this;
+        }
+
+        /**
+         * Sets the user visible description of this channel.
+         *
+         * <p>The recommended maximum length is 300 characters; the value may be truncated if it is too
+         * long.
+         */
+        public ChannelConfig setDescription(String description) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setDescription(description);
+            }
+            return this;
+        }
+
+        /**
+         * Sets what group this channel belongs to.
+         * <p>
+         * Group information is only used for presentation, not for behavior.
+         * <p>
+         * Only modifiable before the channel is submitted to
+         * {@link NotificationManager#createNotificationChannel(NotificationChannel)}, unless the
+         * channel is not currently part of a group.
+         *
+         * @param groupId the id of a group created by
+         *                {@link NotificationManager#createNotificationChannelGroup)}.
+         */
+        public ChannelConfig setGroup(String groupId) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setGroup(groupId);
+            }
+            return this;
+        }
+
+        /**
+         * Sets the level of interruption of this notification channel.
+         * <p>
+         * Only modifiable before the channel is submitted to
+         * {@link NotificationManager#createNotificationChannel(NotificationChannel)}.
+         *
+         * @param importance the amount the user should be interrupted by
+         *                   notifications from this channel.
+         */
+        public ChannelConfig setImportance(@Importance int importance) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setImportance(importance);
+            }
+            return this;
+        }
+
+        /**
+         * Sets the notification light color for notifications posted to this channel, if lights are
+         * {@link NotificationChannel#enableLights(boolean) enabled} on this channel and the device supports that feature.
+         * <p>
+         * Only modifiable before the channel is submitted to
+         * {@link NotificationManager#createNotificationChannel(NotificationChannel)}.
+         */
+        public ChannelConfig setLightColor(int argb) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setLightColor(argb);
+            }
+            return this;
+        }
+
+        /**
+         * Sets whether notifications posted to this channel appear on the lockscreen or not, and if so,
+         * whether they appear in a redacted form. See e.g. {@link Notification#VISIBILITY_SECRET}.
+         * <p>
+         * Only modifiable by the system and notification ranker.
+         */
+        public ChannelConfig setLockscreenVisibility(int lockscreenVisibility) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setLockscreenVisibility(lockscreenVisibility);
+            }
+            return this;
+        }
+
+        /**
+         * Sets the user visible name of this channel.
+         *
+         * <p>The recommended maximum length is 40 characters; the value may be truncated if it is too
+         * long.
+         */
+        public ChannelConfig setName(CharSequence name) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setName(name);
+            }
+            return this;
+        }
+
+        /**
+         * Sets whether notifications posted to this channel can appear as application icon badges
+         * in a Launcher.
+         * <p>
+         * Only modifiable before the channel is submitted to
+         * {@link NotificationManager#createNotificationChannel(NotificationChannel)}.
+         *
+         * @param showBadge true if badges should be allowed to be shown.
+         */
+        public ChannelConfig setShowBadge(boolean showBadge) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setShowBadge(showBadge);
+            }
+            return this;
+        }
+
+        /**
+         * Sets the sound that should be played for notifications posted to this channel and its
+         * audio attributes. Notification channels with an {@link NotificationChannel#getImportance() importance} of at
+         * least {@link NotificationManager#IMPORTANCE_DEFAULT} should have a sound.
+         * <p>
+         * Only modifiable before the channel is submitted to
+         * {@link NotificationManager#createNotificationChannel(NotificationChannel)}.
+         */
+        public ChannelConfig setSound(Uri sound, AudioAttributes audioAttributes) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setSound(sound, audioAttributes);
+            }
+            return this;
+        }
+
+        /**
+         * Sets the vibration pattern for notifications posted to this channel. If the provided
+         * pattern is valid (non-null, non-empty), will {@link NotificationChannel#enableVibration(boolean)} enable
+         * vibration} as well. Otherwise, vibration will be disabled.
+         * <p>
+         * Only modifiable before the channel is submitted to
+         * {@link NotificationManager#createNotificationChannel(NotificationChannel)}.
+         */
+        public ChannelConfig setVibrationPattern(long[] vibrationPattern) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                mNotificationChannel.setVibrationPattern(vibrationPattern);
+            }
+            return this;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java
new file mode 100644
index 0000000000..5828927cd2
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java
@@ -0,0 +1,198 @@
+package com.blankj.utilcode.util;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/04/12
+ *     desc  : utils about number
+ * </pre>
+ */
+public final class NumberUtils {
+
+    private static final ThreadLocal<DecimalFormat> DF_THREAD_LOCAL = new ThreadLocal<DecimalFormat>() {
+        @Override
+        protected DecimalFormat initialValue() {
+            return (DecimalFormat) NumberFormat.getInstance();
+        }
+    };
+
+    public static DecimalFormat getSafeDecimalFormat() {
+        return DF_THREAD_LOCAL.get();
+    }
+
+    private NumberUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(float value, int fractionDigits) {
+        return format(value, false, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, minIntegerDigits, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(float value, boolean isGrouping, int fractionDigits) {
+        return format(value, isGrouping, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, boolean isGrouping, int fractionDigits, boolean isHalfUp) {
+        return format(value, isGrouping, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param isGrouping       True to set grouping will be used in this format, false otherwise.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, boolean isGrouping, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        return format(float2Double(value), isGrouping, minIntegerDigits, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(double value, int fractionDigits) {
+        return format(value, false, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, minIntegerDigits, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(double value, boolean isGrouping, int fractionDigits) {
+        return format(value, isGrouping, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, boolean isGrouping, int fractionDigits, boolean isHalfUp) {
+        return format(value, isGrouping, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param isGrouping       True to set grouping will be used in this format, false otherwise.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, boolean isGrouping, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        DecimalFormat nf = getSafeDecimalFormat();
+        nf.setGroupingUsed(isGrouping);
+        nf.setRoundingMode(isHalfUp ? RoundingMode.HALF_UP : RoundingMode.DOWN);
+        nf.setMinimumIntegerDigits(minIntegerDigits);
+        nf.setMinimumFractionDigits(fractionDigits);
+        nf.setMaximumFractionDigits(fractionDigits);
+        return nf.format(value);
+    }
+
+    /**
+     * Float to double.
+     *
+     * @param value The value.
+     * @return the number of double
+     */
+    public static double float2Double(float value) {
+        return new BigDecimal(String.valueOf(value)).doubleValue();
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ObjectUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
similarity index 77%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
index be5491ece0..b835448861 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
@@ -1,18 +1,22 @@
 package com.blankj.utilcode.util;
 
 import android.os.Build;
-import android.support.annotation.RequiresApi;
-import android.support.v4.util.LongSparseArray;
-import android.support.v4.util.SimpleArrayMap;
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
 import android.util.SparseIntArray;
 import android.util.SparseLongArray;
 
 import java.lang.reflect.Array;
+import java.util.Arrays;
 import java.util.Collection;
+import java.util.Comparator;
 import java.util.Map;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
+import androidx.collection.LongSparseArray;
+import androidx.collection.SimpleArrayMap;
+
 /**
  * <pre>
  *     author: Blankj
@@ -184,13 +188,40 @@ public static boolean equals(final Object o1, final Object o2) {
         return o1 == o2 || (o1 != null && o1.equals(o2));
     }
 
+    /**
+     * Returns 0 if the arguments are identical and {@code
+     * c.compare(a, b)} otherwise.
+     * Consequently, if both arguments are {@code null} 0
+     * is returned.
+     */
+    public static <T> int compare(T a, T b, @NonNull Comparator<? super T> c) {
+        return (a == b) ? 0 : c.compare(a, b);
+    }
+
+    /**
+     * Checks that the specified object reference is not {@code null}.
+     */
+    public static <T> T requireNonNull(T obj) {
+        if (obj == null) throw new NullPointerException();
+        return obj;
+    }
+
+    /**
+     * Checks that the specified object reference is not {@code null} and
+     * throws a customized {@link NullPointerException} if it is.
+     */
+    public static <T> T requireNonNull(T obj, String ifNullTip) {
+        if (obj == null) throw new NullPointerException(ifNullTip);
+        return obj;
+    }
+
     /**
      * Require the objects are not null.
      *
      * @param objects The object.
      * @throws NullPointerException if any object is null in objects
      */
-    public static void requireNonNull(final Object... objects) {
+    public static void requireNonNulls(final Object... objects) {
         if (objects == null) throw new NullPointerException();
         for (Object object : objects) {
             if (object == null) throw new NullPointerException();
@@ -212,6 +243,23 @@ public static <T> T getOrDefault(final T object, final T defaultObject) {
         return object;
     }
 
+    /**
+     * Returns the result of calling {@code toString} for a non-{@code
+     * null} argument and {@code "null"} for a {@code null} argument.
+     */
+    public static String toString(Object obj) {
+        return String.valueOf(obj);
+    }
+
+    /**
+     * Returns the result of calling {@code toString} on the first
+     * argument if the first argument is not {@code null} and returns
+     * the second argument otherwise.
+     */
+    public static String toString(Object o, String nullDefault) {
+        return (o != null) ? o.toString() : nullDefault;
+    }
+
     /**
      * Return the hash code of object.
      *
@@ -221,4 +269,11 @@ public static <T> T getOrDefault(final T object, final T defaultObject) {
     public static int hashCode(final Object o) {
         return o != null ? o.hashCode() : 0;
     }
+
+    /**
+     * Return the hash code of objects.
+     */
+    public static int hashCodes(Object... values) {
+        return Arrays.hashCode(values);
+    }
 }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java
new file mode 100644
index 0000000000..ed0a0d31c0
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java
@@ -0,0 +1,471 @@
+package com.blankj.utilcode.util;
+
+import android.os.Build;
+import android.os.Environment;
+import android.text.TextUtils;
+
+import java.io.File;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/04/15
+ *     desc  : utils about path
+ * </pre>
+ */
+public final class PathUtils {
+
+    private static final char SEP = File.separatorChar;
+
+    private PathUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Join the path.
+     *
+     * @param parent The parent of path.
+     * @param child  The child path.
+     * @return the path
+     */
+    public static String join(String parent, String child) {
+        if (TextUtils.isEmpty(child)) return parent;
+        if (parent == null) {
+            parent = "";
+        }
+        int len = parent.length();
+        String legalSegment = getLegalSegment(child);
+        String newPath;
+        if (len == 0) {
+            newPath = SEP + legalSegment;
+        } else if (parent.charAt(len - 1) == SEP) {
+            newPath = parent + legalSegment;
+        } else {
+            newPath = parent + SEP + legalSegment;
+        }
+        return newPath;
+    }
+
+    private static String getLegalSegment(String segment) {
+        int st = -1, end = -1;
+        char[] charArray = segment.toCharArray();
+        for (int i = 0; i < charArray.length; i++) {
+            char c = charArray[i];
+            if (c != SEP) {
+                if (st == -1) {
+                    st = i;
+                }
+                end = i;
+            }
+        }
+        if (st >= 0 && end >= st) {
+            return segment.substring(st, end + 1);
+        }
+        throw new IllegalArgumentException("segment of <" + segment + "> is illegal");
+    }
+
+    /**
+     * Return the path of /system.
+     *
+     * @return the path of /system
+     */
+    public static String getRootPath() {
+        return getAbsolutePath(Environment.getRootDirectory());
+    }
+
+    /**
+     * Return the path of /data.
+     *
+     * @return the path of /data
+     */
+    public static String getDataPath() {
+        return getAbsolutePath(Environment.getDataDirectory());
+    }
+
+    /**
+     * Return the path of /cache.
+     *
+     * @return the path of /cache
+     */
+    public static String getDownloadCachePath() {
+        return getAbsolutePath(Environment.getDownloadCacheDirectory());
+    }
+
+    /**
+     * Return the path of /data/data/package.
+     *
+     * @return the path of /data/data/package
+     */
+    public static String getInternalAppDataPath() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
+            return Utils.getApp().getApplicationInfo().dataDir;
+        }
+        return getAbsolutePath(Utils.getApp().getDataDir());
+    }
+
+    /**
+     * Return the path of /data/data/package/code_cache.
+     *
+     * @return the path of /data/data/package/code_cache
+     */
+    public static String getInternalAppCodeCacheDir() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            return Utils.getApp().getApplicationInfo().dataDir + "/code_cache";
+        }
+        return getAbsolutePath(Utils.getApp().getCodeCacheDir());
+    }
+
+    /**
+     * Return the path of /data/data/package/cache.
+     *
+     * @return the path of /data/data/package/cache
+     */
+    public static String getInternalAppCachePath() {
+        return getAbsolutePath(Utils.getApp().getCacheDir());
+    }
+
+    /**
+     * Return the path of /data/data/package/databases.
+     *
+     * @return the path of /data/data/package/databases
+     */
+    public static String getInternalAppDbsPath() {
+        return Utils.getApp().getApplicationInfo().dataDir + "/databases";
+    }
+
+    /**
+     * Return the path of /data/data/package/databases/name.
+     *
+     * @param name The name of database.
+     * @return the path of /data/data/package/databases/name
+     */
+    public static String getInternalAppDbPath(String name) {
+        return getAbsolutePath(Utils.getApp().getDatabasePath(name));
+    }
+
+    /**
+     * Return the path of /data/data/package/files.
+     *
+     * @return the path of /data/data/package/files
+     */
+    public static String getInternalAppFilesPath() {
+        return getAbsolutePath(Utils.getApp().getFilesDir());
+    }
+
+    /**
+     * Return the path of /data/data/package/shared_prefs.
+     *
+     * @return the path of /data/data/package/shared_prefs
+     */
+    public static String getInternalAppSpPath() {
+        return Utils.getApp().getApplicationInfo().dataDir + "/shared_prefs";
+    }
+
+    /**
+     * Return the path of /data/data/package/no_backup.
+     *
+     * @return the path of /data/data/package/no_backup
+     */
+    public static String getInternalAppNoBackupFilesPath() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            return Utils.getApp().getApplicationInfo().dataDir + "/no_backup";
+        }
+        return getAbsolutePath(Utils.getApp().getNoBackupFilesDir());
+    }
+
+    /**
+     * Return the path of /storage/emulated/0.
+     *
+     * @return the path of /storage/emulated/0
+     */
+    public static String getExternalStoragePath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStorageDirectory());
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Music.
+     *
+     * @return the path of /storage/emulated/0/Music
+     */
+    public static String getExternalMusicPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Podcasts.
+     *
+     * @return the path of /storage/emulated/0/Podcasts
+     */
+    public static String getExternalPodcastsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PODCASTS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Ringtones.
+     *
+     * @return the path of /storage/emulated/0/Ringtones
+     */
+    public static String getExternalRingtonesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_RINGTONES));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Alarms.
+     *
+     * @return the path of /storage/emulated/0/Alarms
+     */
+    public static String getExternalAlarmsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_ALARMS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Notifications.
+     *
+     * @return the path of /storage/emulated/0/Notifications
+     */
+    public static String getExternalNotificationsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_NOTIFICATIONS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Pictures.
+     *
+     * @return the path of /storage/emulated/0/Pictures
+     */
+    public static String getExternalPicturesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Movies.
+     *
+     * @return the path of /storage/emulated/0/Movies
+     */
+    public static String getExternalMoviesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Download.
+     *
+     * @return the path of /storage/emulated/0/Download
+     */
+    public static String getExternalDownloadsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/DCIM.
+     *
+     * @return the path of /storage/emulated/0/DCIM
+     */
+    public static String getExternalDcimPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Documents.
+     *
+     * @return the path of /storage/emulated/0/Documents
+     */
+    public static String getExternalDocumentsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
+            return getAbsolutePath(Environment.getExternalStorageDirectory()) + "/Documents";
+        }
+        return getAbsolutePath(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package
+     */
+    public static String getExternalAppDataPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        File externalCacheDir = Utils.getApp().getExternalCacheDir();
+        if (externalCacheDir == null) return "";
+        return getAbsolutePath(externalCacheDir.getParentFile());
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/cache.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/cache
+     */
+    public static String getExternalAppCachePath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalCacheDir());
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files
+     */
+    public static String getExternalAppFilesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(null));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Music.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Music
+     */
+    public static String getExternalAppMusicPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_MUSIC));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Podcasts.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Podcasts
+     */
+    public static String getExternalAppPodcastsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_PODCASTS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Ringtones.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Ringtones
+     */
+    public static String getExternalAppRingtonesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_RINGTONES));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Alarms.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Alarms
+     */
+    public static String getExternalAppAlarmsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_ALARMS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Notifications.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Notifications
+     */
+    public static String getExternalAppNotificationsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_NOTIFICATIONS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Pictures.
+     *
+     * @return path of /storage/emulated/0/Android/data/package/files/Pictures
+     */
+    public static String getExternalAppPicturesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_PICTURES));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Movies.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Movies
+     */
+    public static String getExternalAppMoviesPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_MOVIES));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Download.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Download
+     */
+    public static String getExternalAppDownloadPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/DCIM.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/DCIM
+     */
+    public static String getExternalAppDcimPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DCIM));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/data/package/files/Documents.
+     *
+     * @return the path of /storage/emulated/0/Android/data/package/files/Documents
+     */
+    public static String getExternalAppDocumentsPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
+            return getAbsolutePath(Utils.getApp().getExternalFilesDir(null)) + "/Documents";
+        }
+        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS));
+    }
+
+    /**
+     * Return the path of /storage/emulated/0/Android/obb/package.
+     *
+     * @return the path of /storage/emulated/0/Android/obb/package
+     */
+    public static String getExternalAppObbPath() {
+        if (!UtilsBridge.isSDCardEnableByEnvironment()) return "";
+        return getAbsolutePath(Utils.getApp().getObbDir());
+    }
+
+    public static String getRootPathExternalFirst() {
+        String rootPath = getExternalStoragePath();
+        if (TextUtils.isEmpty(rootPath)) {
+            rootPath = getRootPath();
+        }
+        return rootPath;
+    }
+
+    public static String getAppDataPathExternalFirst() {
+        String appDataPath = getExternalAppDataPath();
+        if (TextUtils.isEmpty(appDataPath)) {
+            appDataPath = getInternalAppDataPath();
+        }
+        return appDataPath;
+    }
+
+    public static String getFilesPathExternalFirst() {
+        String filePath = getExternalAppFilesPath();
+        if (TextUtils.isEmpty(filePath)) {
+            filePath = getInternalAppFilesPath();
+        }
+        return filePath;
+    }
+
+    public static String getCachePathExternalFirst() {
+        String appPath = getExternalAppCachePath();
+        if (TextUtils.isEmpty(appPath)) {
+            appPath = getInternalAppCachePath();
+        }
+        return appPath;
+    }
+
+    private static String getAbsolutePath(final File file) {
+        if (file == null) return "";
+        return file.getAbsolutePath();
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
new file mode 100755
index 0000000000..a4e2f73e57
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
@@ -0,0 +1,600 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.util.Log;
+import android.util.Pair;
+import android.view.MotionEvent;
+import android.view.WindowManager;
+
+import com.blankj.utilcode.constant.PermissionConstants;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
+import androidx.core.content.ContextCompat;
+
+import static com.blankj.utilcode.constant.PermissionConstants.PermissionGroup;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/12/29
+ *     desc  : utils about permission
+ * </pre>
+ */
+public final class PermissionUtils {
+
+    private static PermissionUtils sInstance;
+
+    private String[]            mPermissionsParam;
+    private OnExplainListener   mOnExplainListener;
+    private OnRationaleListener mOnRationaleListener;
+    private SingleCallback      mSingleCallback;
+    private SimpleCallback      mSimpleCallback;
+    private FullCallback        mFullCallback;
+    private ThemeCallback       mThemeCallback;
+    private Set<String>         mPermissions;
+    private List<String>        mPermissionsRequest;
+    private List<String>        mPermissionsGranted;
+    private List<String>        mPermissionsDenied;
+    private List<String>        mPermissionsDeniedForever;
+
+    private static SimpleCallback sSimpleCallback4WriteSettings;
+    private static SimpleCallback sSimpleCallback4DrawOverlays;
+
+    /**
+     * Return the permissions used in application.
+     *
+     * @return the permissions used in application
+     */
+    public static List<String> getPermissions() {
+        return getPermissions(Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the permissions used in application.
+     *
+     * @param packageName The name of the package.
+     * @return the permissions used in application
+     */
+    public static List<String> getPermissions(final String packageName) {
+        PackageManager pm = Utils.getApp().getPackageManager();
+        try {
+            String[] permissions = pm.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS).requestedPermissions;
+            if (permissions == null) return Collections.emptyList();
+            return Arrays.asList(permissions);
+        } catch (PackageManager.NameNotFoundException e) {
+            e.printStackTrace();
+            return Collections.emptyList();
+        }
+    }
+
+    /**
+     * Return whether <em>you</em> have been granted the permissions.
+     *
+     * @param permissions The permissions.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isGranted(final String... permissions) {
+        Pair<List<String>, List<String>> requestAndDeniedPermissions = getRequestAndDeniedPermissions(permissions);
+        List<String> deniedPermissions = requestAndDeniedPermissions.second;
+        if (!deniedPermissions.isEmpty()) {
+            return false;
+        }
+        List<String> requestPermissions = requestAndDeniedPermissions.first;
+        for (String permission : requestPermissions) {
+            if (!isGranted(permission)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private static Pair<List<String>, List<String>> getRequestAndDeniedPermissions(final String... permissionsParam) {
+        List<String> requestPermissions = new ArrayList<>();
+        List<String> deniedPermissions = new ArrayList<>();
+        List<String> appPermissions = getPermissions();
+        for (String param : permissionsParam) {
+            boolean isIncludeInManifest = false;
+            String[] permissions = PermissionConstants.getPermissions(param);
+            for (String permission : permissions) {
+                if (appPermissions.contains(permission)) {
+                    requestPermissions.add(permission);
+                    isIncludeInManifest = true;
+                }
+            }
+            if (!isIncludeInManifest) {
+                deniedPermissions.add(param);
+                Log.e("PermissionUtils", "U should add the permission of " + param + " in manifest.");
+            }
+        }
+        return Pair.create(requestPermissions, deniedPermissions);
+    }
+
+    private static boolean isGranted(final String permission) {
+        return Build.VERSION.SDK_INT < Build.VERSION_CODES.M
+                || PackageManager.PERMISSION_GRANTED
+                == ContextCompat.checkSelfPermission(Utils.getApp(), permission);
+    }
+
+    /**
+     * Return whether the app can modify system settings.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static boolean isGrantedWriteSettings() {
+        return Settings.System.canWrite(Utils.getApp());
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static void requestWriteSettings(final SimpleCallback callback) {
+        if (isGrantedWriteSettings()) {
+            if (callback != null) callback.onGranted();
+            return;
+        }
+        sSimpleCallback4WriteSettings = callback;
+        PermissionActivityImpl.start(PermissionActivityImpl.TYPE_WRITE_SETTINGS);
+    }
+
+    @TargetApi(Build.VERSION_CODES.M)
+    private static void startWriteSettingsActivity(final Activity activity, final int requestCode) {
+        Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS);
+        intent.setData(Uri.parse("package:" + Utils.getApp().getPackageName()));
+        if (!UtilsBridge.isIntentAvailable(intent)) {
+            launchAppDetailsSettings();
+            return;
+        }
+        activity.startActivityForResult(intent, requestCode);
+    }
+
+    /**
+     * Return whether the app can draw on top of other apps.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static boolean isGrantedDrawOverlays() {
+        return Settings.canDrawOverlays(Utils.getApp());
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static void requestDrawOverlays(final SimpleCallback callback) {
+        if (isGrantedDrawOverlays()) {
+            if (callback != null) callback.onGranted();
+            return;
+        }
+        sSimpleCallback4DrawOverlays = callback;
+        PermissionActivityImpl.start(PermissionActivityImpl.TYPE_DRAW_OVERLAYS);
+    }
+
+    @TargetApi(Build.VERSION_CODES.M)
+    private static void startOverlayPermissionActivity(final Activity activity, final int requestCode) {
+        Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
+        intent.setData(Uri.parse("package:" + Utils.getApp().getPackageName()));
+        if (!UtilsBridge.isIntentAvailable(intent)) {
+            launchAppDetailsSettings();
+            return;
+        }
+        activity.startActivityForResult(intent, requestCode);
+    }
+
+    /**
+     * Launch the application's details settings.
+     */
+    public static void launchAppDetailsSettings() {
+        Intent intent = UtilsBridge.getLaunchAppDetailsSettingsIntent(Utils.getApp().getPackageName(), true);
+        if (!UtilsBridge.isIntentAvailable(intent)) return;
+        Utils.getApp().startActivity(intent);
+    }
+
+    /**
+     * Set the permissions.
+     *
+     * @param permissions The permissions.
+     * @return the single {@link PermissionUtils} instance
+     */
+    public static PermissionUtils permissionGroup(@PermissionGroup final String... permissions) {
+        return permission(permissions);
+    }
+
+    /**
+     * Set the permissions.
+     *
+     * @param permissions The permissions.
+     * @return the single {@link PermissionUtils} instance
+     */
+    public static PermissionUtils permission(final String... permissions) {
+        return new PermissionUtils(permissions);
+    }
+
+    private PermissionUtils(final String... permissions) {
+        mPermissionsParam = permissions;
+        sInstance = this;
+    }
+
+    /**
+     * Set explain listener.
+     *
+     * @param listener The explain listener.
+     * @return the single {@link PermissionUtils} instance
+     */
+    public PermissionUtils explain(final OnExplainListener listener) {
+        mOnExplainListener = listener;
+        return this;
+    }
+
+    /**
+     * Set rationale listener.
+     *
+     * @param listener The rationale listener.
+     * @return the single {@link PermissionUtils} instance
+     */
+    public PermissionUtils rationale(final OnRationaleListener listener) {
+        mOnRationaleListener = listener;
+        return this;
+    }
+
+    /**
+     * Set the simple call back.
+     *
+     * @param callback the single call back
+     * @return the single {@link PermissionUtils} instance
+     */
+    public PermissionUtils callback(final SingleCallback callback) {
+        mSingleCallback = callback;
+        return this;
+    }
+
+    /**
+     * Set the simple call back.
+     *
+     * @param callback the simple call back
+     * @return the single {@link PermissionUtils} instance
+     */
+    public PermissionUtils callback(final SimpleCallback callback) {
+        mSimpleCallback = callback;
+        return this;
+    }
+
+    /**
+     * Set the full call back.
+     *
+     * @param callback the full call back
+     * @return the single {@link PermissionUtils} instance
+     */
+    public PermissionUtils callback(final FullCallback callback) {
+        mFullCallback = callback;
+        return this;
+    }
+
+    /**
+     * Set the theme callback.
+     *
+     * @param callback The theme callback.
+     * @return the single {@link PermissionUtils} instance
+     */
+    public PermissionUtils theme(final ThemeCallback callback) {
+        mThemeCallback = callback;
+        return this;
+    }
+
+    /**
+     * Start request.
+     */
+    public void request() {
+        if (mPermissionsParam == null || mPermissionsParam.length <= 0) {
+            Log.w("PermissionUtils", "No permissions to request.");
+            return;
+        }
+
+        mPermissions = new LinkedHashSet<>();
+        mPermissionsRequest = new ArrayList<>();
+        mPermissionsGranted = new ArrayList<>();
+        mPermissionsDenied = new ArrayList<>();
+        mPermissionsDeniedForever = new ArrayList<>();
+
+        Pair<List<String>, List<String>> requestAndDeniedPermissions = getRequestAndDeniedPermissions(mPermissionsParam);
+        mPermissions.addAll(requestAndDeniedPermissions.first);
+        mPermissionsDenied.addAll(requestAndDeniedPermissions.second);
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+            mPermissionsGranted.addAll(mPermissions);
+            requestCallback();
+        } else {
+            for (String permission : mPermissions) {
+                if (isGranted(permission)) {
+                    mPermissionsGranted.add(permission);
+                } else {
+                    mPermissionsRequest.add(permission);
+                }
+            }
+            if (mPermissionsRequest.isEmpty()) {
+                requestCallback();
+            } else {
+                startPermissionActivity();
+            }
+        }
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private void startPermissionActivity() {
+        PermissionActivityImpl.start(PermissionActivityImpl.TYPE_RUNTIME);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private boolean shouldRationale(final UtilsTransActivity activity,
+                                    final Runnable againRunnable) {
+        boolean isRationale = false;
+        if (mOnRationaleListener != null) {
+            for (String permission : mPermissionsRequest) {
+                if (activity.shouldShowRequestPermissionRationale(permission)) {
+                    rationalInner(activity, againRunnable);
+                    isRationale = true;
+                    break;
+                }
+            }
+            mOnRationaleListener = null;
+        }
+        return isRationale;
+    }
+
+    private void rationalInner(final UtilsTransActivity activity, final Runnable againRunnable) {
+        getPermissionsStatus(activity);
+        mOnRationaleListener.rationale(activity, new OnRationaleListener.ShouldRequest() {
+            @Override
+            public void again(boolean again) {
+                if (again) {
+                    mPermissionsDenied = new ArrayList<>();
+                    mPermissionsDeniedForever = new ArrayList<>();
+                    againRunnable.run();
+                } else {
+                    activity.finish();
+                    requestCallback();
+                }
+            }
+        });
+    }
+
+    private void getPermissionsStatus(final Activity activity) {
+        for (String permission : mPermissionsRequest) {
+            if (isGranted(permission)) {
+                mPermissionsGranted.add(permission);
+            } else {
+                mPermissionsDenied.add(permission);
+                if (!activity.shouldShowRequestPermissionRationale(permission)) {
+                    mPermissionsDeniedForever.add(permission);
+                }
+            }
+        }
+    }
+
+    private void requestCallback() {
+        if (mSingleCallback != null) {
+            mSingleCallback.callback(mPermissionsDenied.isEmpty(),
+                    mPermissionsGranted, mPermissionsDeniedForever, mPermissionsDenied);
+            mSingleCallback = null;
+        }
+        if (mSimpleCallback != null) {
+            if (mPermissionsDenied.isEmpty()) {
+                mSimpleCallback.onGranted();
+            } else {
+                mSimpleCallback.onDenied();
+            }
+            mSimpleCallback = null;
+        }
+        if (mFullCallback != null) {
+            if (mPermissionsRequest.size() == 0
+                    || mPermissionsGranted.size() > 0) {
+                mFullCallback.onGranted(mPermissionsGranted);
+            }
+            if (!mPermissionsDenied.isEmpty()) {
+                mFullCallback.onDenied(mPermissionsDeniedForever, mPermissionsDenied);
+            }
+            mFullCallback = null;
+        }
+        mOnRationaleListener = null;
+        mThemeCallback = null;
+    }
+
+    private void onRequestPermissionsResult(final Activity activity) {
+        getPermissionsStatus(activity);
+        requestCallback();
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    static final class PermissionActivityImpl extends UtilsTransActivity.TransActivityDelegate {
+
+        private static final String TYPE                = "TYPE";
+        private static final int    TYPE_RUNTIME        = 0x01;
+        private static final int    TYPE_WRITE_SETTINGS = 0x02;
+        private static final int    TYPE_DRAW_OVERLAYS  = 0x03;
+
+        private static int currentRequestCode = -1;
+
+        private static PermissionActivityImpl INSTANCE = new PermissionActivityImpl();
+
+        public static void start(final int type) {
+            UtilsTransActivity.start(new Utils.Consumer<Intent>() {
+                @Override
+                public void accept(Intent data) {
+                    data.putExtra(TYPE, type);
+                }
+            }, INSTANCE);
+        }
+
+        @Override
+        public void onCreated(@NonNull final UtilsTransActivity activity, @Nullable Bundle savedInstanceState) {
+            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
+                    | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH);
+            int type = activity.getIntent().getIntExtra(TYPE, -1);
+            if (type == TYPE_RUNTIME) {
+                if (sInstance == null) {
+                    Log.e("PermissionUtils", "sInstance is null.");
+                    activity.finish();
+                    return;
+                }
+                if (sInstance.mPermissionsRequest == null) {
+                    Log.e("PermissionUtils", "mPermissionsRequest is null.");
+                    activity.finish();
+                    return;
+                }
+                if (sInstance.mPermissionsRequest.size() <= 0) {
+                    Log.e("PermissionUtils", "mPermissionsRequest's size is no more than 0.");
+                    activity.finish();
+                    return;
+                }
+                if (sInstance.mThemeCallback != null) {
+                    sInstance.mThemeCallback.onActivityCreate(activity);
+                }
+                if (sInstance.mOnExplainListener != null) {
+                    sInstance.mOnExplainListener.explain(activity, sInstance.mPermissionsRequest, new OnExplainListener.ShouldRequest() {
+                        @Override
+                        public void start(boolean start) {
+                            if (!start) {
+                                activity.finish();
+                            } else {
+                                requestPermissions(activity);
+                            }
+                        }
+                    });
+                    sInstance.mOnExplainListener = null;
+                    return;
+                }
+                requestPermissions(activity);
+            } else if (type == TYPE_WRITE_SETTINGS) {
+                currentRequestCode = TYPE_WRITE_SETTINGS;
+                startWriteSettingsActivity(activity, TYPE_WRITE_SETTINGS);
+            } else if (type == TYPE_DRAW_OVERLAYS) {
+                currentRequestCode = TYPE_DRAW_OVERLAYS;
+                startOverlayPermissionActivity(activity, TYPE_DRAW_OVERLAYS);
+            } else {
+                activity.finish();
+                Log.e("PermissionUtils", "type is wrong.");
+            }
+        }
+
+        private void requestPermissions(final UtilsTransActivity activity) {
+            if (sInstance.shouldRationale(activity, new Runnable() {
+                @Override
+                public void run() {
+                    activity.requestPermissions(sInstance.mPermissionsRequest.toArray(new String[0]), 1);
+                }
+            })) {
+                return;
+            }
+            activity.requestPermissions(sInstance.mPermissionsRequest.toArray(new String[0]), 1);
+        }
+
+        @Override
+        public void onRequestPermissionsResult(@NonNull UtilsTransActivity activity,
+                                               int requestCode,
+                                               @NonNull String[] permissions,
+                                               @NonNull int[] grantResults) {
+            activity.finish();
+            if (sInstance != null && sInstance.mPermissionsRequest != null) {
+                sInstance.onRequestPermissionsResult(activity);
+            }
+        }
+
+
+        @Override
+        public boolean dispatchTouchEvent(@NonNull UtilsTransActivity activity, MotionEvent ev) {
+            activity.finish();
+            return true;
+        }
+
+        @Override
+        public void onDestroy(@NonNull final UtilsTransActivity activity) {
+            if (currentRequestCode != -1) {
+                checkRequestCallback(currentRequestCode);
+                currentRequestCode = -1;
+            }
+            super.onDestroy(activity);
+        }
+
+        @Override
+        public void onActivityResult(@NonNull UtilsTransActivity activity, int requestCode, int resultCode, Intent data) {
+            activity.finish();
+        }
+
+        private void checkRequestCallback(int requestCode) {
+            if (requestCode == TYPE_WRITE_SETTINGS) {
+                if (sSimpleCallback4WriteSettings == null) return;
+                if (isGrantedWriteSettings()) {
+                    sSimpleCallback4WriteSettings.onGranted();
+                } else {
+                    sSimpleCallback4WriteSettings.onDenied();
+                }
+                sSimpleCallback4WriteSettings = null;
+            } else if (requestCode == TYPE_DRAW_OVERLAYS) {
+                if (sSimpleCallback4DrawOverlays == null) return;
+                if (isGrantedDrawOverlays()) {
+                    sSimpleCallback4DrawOverlays.onGranted();
+                } else {
+                    sSimpleCallback4DrawOverlays.onDenied();
+                }
+                sSimpleCallback4DrawOverlays = null;
+            }
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // interface
+    ///////////////////////////////////////////////////////////////////////////
+
+    public interface OnExplainListener {
+
+        void explain(@NonNull UtilsTransActivity activity, @NonNull List<String> denied, @NonNull ShouldRequest shouldRequest);
+
+        interface ShouldRequest {
+            void start(boolean start);
+        }
+    }
+
+    public interface OnRationaleListener {
+
+        void rationale(@NonNull UtilsTransActivity activity, @NonNull ShouldRequest shouldRequest);
+
+        interface ShouldRequest {
+            void again(boolean again);
+        }
+    }
+
+    public interface SingleCallback {
+        void callback(boolean isAllGranted, @NonNull List<String> granted,
+                      @NonNull List<String> deniedForever, @NonNull List<String> denied);
+    }
+
+
+    public interface SimpleCallback {
+        void onGranted();
+
+        void onDenied();
+    }
+
+    public interface FullCallback {
+        void onGranted(@NonNull List<String> granted);
+
+        void onDenied(@NonNull List<String> deniedForever, @NonNull List<String> denied);
+    }
+
+    public interface ThemeCallback {
+        void onActivityCreate(@NonNull Activity activity);
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
new file mode 100644
index 0000000000..72e76ea055
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
@@ -0,0 +1,321 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Build;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresPermission;
+
+import static android.Manifest.permission.CALL_PHONE;
+import static android.Manifest.permission.READ_PHONE_STATE;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/02
+ *     desc  : utils about phone
+ * </pre>
+ */
+public final class PhoneUtils {
+
+    private PhoneUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether the device is phone.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPhone() {
+        TelephonyManager tm = getTelephonyManager();
+        return tm.getPhoneType() != TelephonyManager.PHONE_TYPE_NONE;
+    }
+
+    /**
+     * Return the unique device id.
+     * <p>If the version of SDK is greater than 28, it will return an empty string.</p>
+     * <p>Must hold {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
+     *
+     * @return the unique device id
+     */
+    @SuppressLint("HardwareIds")
+    @RequiresPermission(READ_PHONE_STATE)
+    public static String getDeviceId() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            return "";
+        }
+        TelephonyManager tm = getTelephonyManager();
+        String deviceId = tm.getDeviceId();
+        if (!TextUtils.isEmpty(deviceId)) return deviceId;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            String imei = tm.getImei();
+            if (!TextUtils.isEmpty(imei)) return imei;
+            String meid = tm.getMeid();
+            return TextUtils.isEmpty(meid) ? "" : meid;
+        }
+        return "";
+    }
+
+    /**
+     * Return the serial of device.
+     *
+     * @return the serial of device
+     */
+    @SuppressLint("HardwareIds")
+    @RequiresPermission(READ_PHONE_STATE)
+    public static String getSerial() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            try {
+                return Build.getSerial();
+            } catch (SecurityException e) {
+                e.printStackTrace();
+                return "";
+            }
+        }
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? Build.getSerial() : Build.SERIAL;
+    }
+
+    /**
+     * Return the IMEI.
+     * <p>If the version of SDK is greater than 28, it will return an empty string.</p>
+     * <p>Must hold {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
+     *
+     * @return the IMEI
+     */
+    @RequiresPermission(READ_PHONE_STATE)
+    public static String getIMEI() {
+        return getImeiOrMeid(true);
+    }
+
+    /**
+     * Return the MEID.
+     * <p>If the version of SDK is greater than 28, it will return an empty string.</p>
+     * <p>Must hold {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
+     *
+     * @return the MEID
+     */
+    @RequiresPermission(READ_PHONE_STATE)
+    public static String getMEID() {
+        return getImeiOrMeid(false);
+    }
+
+    @SuppressLint("HardwareIds")
+    @RequiresPermission(READ_PHONE_STATE)
+    public static String getImeiOrMeid(boolean isImei) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            return "";
+        }
+        TelephonyManager tm = getTelephonyManager();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            if (isImei) {
+                return getMinOne(tm.getImei(0), tm.getImei(1));
+            } else {
+                return getMinOne(tm.getMeid(0), tm.getMeid(1));
+            }
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            String ids = getSystemPropertyByReflect(isImei ? "ril.gsm.imei" : "ril.cdma.meid");
+            if (!TextUtils.isEmpty(ids)) {
+                String[] idArr = ids.split(",");
+                if (idArr.length == 2) {
+                    return getMinOne(idArr[0], idArr[1]);
+                } else {
+                    return idArr[0];
+                }
+            }
+
+            String id0 = tm.getDeviceId();
+            String id1 = "";
+            try {
+                Method method = tm.getClass().getMethod("getDeviceId", int.class);
+                id1 = (String) method.invoke(tm,
+                        isImei ? TelephonyManager.PHONE_TYPE_GSM
+                                : TelephonyManager.PHONE_TYPE_CDMA);
+            } catch (NoSuchMethodException e) {
+                e.printStackTrace();
+            } catch (IllegalAccessException e) {
+                e.printStackTrace();
+            } catch (InvocationTargetException e) {
+                e.printStackTrace();
+            }
+            if (isImei) {
+                if (id0 != null && id0.length() < 15) {
+                    id0 = "";
+                }
+                if (id1 != null && id1.length() < 15) {
+                    id1 = "";
+                }
+            } else {
+                if (id0 != null && id0.length() == 14) {
+                    id0 = "";
+                }
+                if (id1 != null && id1.length() == 14) {
+                    id1 = "";
+                }
+            }
+            return getMinOne(id0, id1);
+        } else {
+            String deviceId = tm.getDeviceId();
+            if (isImei) {
+                if (deviceId != null && deviceId.length() >= 15) {
+                    return deviceId;
+                }
+            } else {
+                if (deviceId != null && deviceId.length() == 14) {
+                    return deviceId;
+                }
+            }
+        }
+        return "";
+    }
+
+    private static String getMinOne(String s0, String s1) {
+        boolean empty0 = TextUtils.isEmpty(s0);
+        boolean empty1 = TextUtils.isEmpty(s1);
+        if (empty0 && empty1) return "";
+        if (!empty0 && !empty1) {
+            if (s0.compareTo(s1) <= 0) {
+                return s0;
+            } else {
+                return s1;
+            }
+        }
+        if (!empty0) return s0;
+        return s1;
+    }
+
+    private static String getSystemPropertyByReflect(String key) {
+        try {
+            @SuppressLint("PrivateApi")
+            Class<?> clz = Class.forName("android.os.SystemProperties");
+            Method getMethod = clz.getMethod("get", String.class, String.class);
+            return (String) getMethod.invoke(clz, key, "");
+        } catch (Exception e) {/**/}
+        return "";
+    }
+
+    /**
+     * Return the IMSI.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
+     *
+     * @return the IMSI
+     */
+    @SuppressLint("HardwareIds")
+    @RequiresPermission(READ_PHONE_STATE)
+    public static String getIMSI() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            try {
+                getTelephonyManager().getSubscriberId();
+            } catch (SecurityException e) {
+                e.printStackTrace();
+                return "";
+            }
+        }
+        return getTelephonyManager().getSubscriberId();
+    }
+
+    /**
+     * Returns the current phone type.
+     *
+     * @return the current phone type
+     * <ul>
+     * <li>{@link TelephonyManager#PHONE_TYPE_NONE}</li>
+     * <li>{@link TelephonyManager#PHONE_TYPE_GSM }</li>
+     * <li>{@link TelephonyManager#PHONE_TYPE_CDMA}</li>
+     * <li>{@link TelephonyManager#PHONE_TYPE_SIP }</li>
+     * </ul>
+     */
+    public static int getPhoneType() {
+        TelephonyManager tm = getTelephonyManager();
+        return tm.getPhoneType();
+    }
+
+    /**
+     * Return whether sim card state is ready.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSimCardReady() {
+        TelephonyManager tm = getTelephonyManager();
+        return tm.getSimState() == TelephonyManager.SIM_STATE_READY;
+    }
+
+    /**
+     * Return the sim operator name.
+     *
+     * @return the sim operator name
+     */
+    public static String getSimOperatorName() {
+        TelephonyManager tm = getTelephonyManager();
+        return tm.getSimOperatorName();
+    }
+
+    /**
+     * Return the sim operator using mnc.
+     *
+     * @return the sim operator
+     */
+    public static String getSimOperatorByMnc() {
+        TelephonyManager tm = getTelephonyManager();
+        String operator = tm.getSimOperator();
+        if (operator == null) return "";
+        switch (operator) {
+            case "46000":
+            case "46002":
+            case "46007":
+            case "46020":
+                return "中国移动";
+            case "46001":
+            case "46006":
+            case "46009":
+                return "中国联通";
+            case "46003":
+            case "46005":
+            case "46011":
+                return "中国电信";
+            default:
+                return operator;
+        }
+    }
+
+    /**
+     * Skip to dial.
+     *
+     * @param phoneNumber The phone number.
+     */
+    public static void dial(@NonNull final String phoneNumber) {
+        Utils.getApp().startActivity(UtilsBridge.getDialIntent(phoneNumber));
+    }
+
+    /**
+     * Make a phone call.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.CALL_PHONE" />}</p>
+     *
+     * @param phoneNumber The phone number.
+     */
+    @RequiresPermission(CALL_PHONE)
+    public static void call(@NonNull final String phoneNumber) {
+        Utils.getApp().startActivity(UtilsBridge.getCallIntent(phoneNumber));
+    }
+
+    /**
+     * Send sms.
+     *
+     * @param phoneNumber The phone number.
+     * @param content     The content.
+     */
+    public static void sendSms(@NonNull final String phoneNumber, final String content) {
+        Utils.getApp().startActivity(UtilsBridge.getSendSmsIntent(phoneNumber, content));
+    }
+
+    private static TelephonyManager getTelephonyManager() {
+        return (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
new file mode 100644
index 0000000000..ce78addf57
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
@@ -0,0 +1,273 @@
+package com.blankj.utilcode.util;
+
+import android.app.ActivityManager;
+import android.app.AppOpsManager;
+import android.app.Application;
+import android.app.usage.UsageStats;
+import android.app.usage.UsageStatsManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.provider.Settings;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresPermission;
+
+import static android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/10/18
+ *     desc  : utils about process
+ * </pre>
+ */
+public final class ProcessUtils {
+
+    private ProcessUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return the foreground process name.
+     * <p>Target APIs greater than 21 must hold
+     * {@code <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />}</p>
+     *
+     * @return the foreground process name
+     */
+    public static String getForegroundProcessName() {
+        ActivityManager am =
+                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        //noinspection ConstantConditions
+        List<ActivityManager.RunningAppProcessInfo> pInfo = am.getRunningAppProcesses();
+        if (pInfo != null && pInfo.size() > 0) {
+            for (ActivityManager.RunningAppProcessInfo aInfo : pInfo) {
+                if (aInfo.importance
+                        == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
+                    return aInfo.processName;
+                }
+            }
+        }
+        if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP) {
+            PackageManager pm = Utils.getApp().getPackageManager();
+            Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
+            List<ResolveInfo> list =
+                    pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
+            Log.i("ProcessUtils", list.toString());
+            if (list.size() <= 0) {
+                Log.i("ProcessUtils",
+                        "getForegroundProcessName: noun of access to usage information.");
+                return "";
+            }
+            try {// Access to usage information.
+                ApplicationInfo info =
+                        pm.getApplicationInfo(Utils.getApp().getPackageName(), 0);
+                AppOpsManager aom =
+                        (AppOpsManager) Utils.getApp().getSystemService(Context.APP_OPS_SERVICE);
+                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
+                        info.uid,
+                        info.packageName) != AppOpsManager.MODE_ALLOWED) {
+                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                    Utils.getApp().startActivity(intent);
+                }
+                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
+                        info.uid,
+                        info.packageName) != AppOpsManager.MODE_ALLOWED) {
+                    Log.i("ProcessUtils",
+                            "getForegroundProcessName: refuse to device usage stats.");
+                    return "";
+                }
+                UsageStatsManager usageStatsManager = (UsageStatsManager) Utils.getApp()
+                        .getSystemService(Context.USAGE_STATS_SERVICE);
+                List<UsageStats> usageStatsList = null;
+                if (usageStatsManager != null) {
+                    long endTime = System.currentTimeMillis();
+                    long beginTime = endTime - 86400000 * 7;
+                    usageStatsList = usageStatsManager
+                            .queryUsageStats(UsageStatsManager.INTERVAL_BEST,
+                                    beginTime, endTime);
+                }
+                if (usageStatsList == null || usageStatsList.isEmpty()) return "";
+                UsageStats recentStats = null;
+                for (UsageStats usageStats : usageStatsList) {
+                    if (recentStats == null
+                            || usageStats.getLastTimeUsed() > recentStats.getLastTimeUsed()) {
+                        recentStats = usageStats;
+                    }
+                }
+                return recentStats == null ? null : recentStats.getPackageName();
+            } catch (PackageManager.NameNotFoundException e) {
+                e.printStackTrace();
+            }
+        }
+        return "";
+    }
+
+    /**
+     * Return all background processes.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />}</p>
+     *
+     * @return all background processes
+     */
+    @RequiresPermission(KILL_BACKGROUND_PROCESSES)
+    public static Set<String> getAllBackgroundProcesses() {
+        ActivityManager am =
+                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
+        Set<String> set = new HashSet<>();
+        if (info != null) {
+            for (ActivityManager.RunningAppProcessInfo aInfo : info) {
+                Collections.addAll(set, aInfo.pkgList);
+            }
+        }
+        return set;
+    }
+
+    /**
+     * Kill all background processes.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />}</p>
+     *
+     * @return background processes were killed
+     */
+    @RequiresPermission(KILL_BACKGROUND_PROCESSES)
+    public static Set<String> killAllBackgroundProcesses() {
+        ActivityManager am =
+                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
+        Set<String> set = new HashSet<>();
+        if (info == null) return set;
+        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
+            for (String pkg : aInfo.pkgList) {
+                am.killBackgroundProcesses(pkg);
+                set.add(pkg);
+            }
+        }
+        info = am.getRunningAppProcesses();
+        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
+            for (String pkg : aInfo.pkgList) {
+                set.remove(pkg);
+            }
+        }
+        return set;
+    }
+
+    /**
+     * Kill background processes.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />}</p>
+     *
+     * @param packageName The name of the package.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    @RequiresPermission(KILL_BACKGROUND_PROCESSES)
+    public static boolean killBackgroundProcesses(@NonNull final String packageName) {
+        ActivityManager am =
+                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
+        if (info == null || info.size() == 0) return true;
+        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
+            if (Arrays.asList(aInfo.pkgList).contains(packageName)) {
+                am.killBackgroundProcesses(packageName);
+            }
+        }
+        info = am.getRunningAppProcesses();
+        if (info == null || info.size() == 0) return true;
+        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
+            if (Arrays.asList(aInfo.pkgList).contains(packageName)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Return whether app running in the main process.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMainProcess() {
+        return Utils.getApp().getPackageName().equals(getCurrentProcessName());
+    }
+
+    /**
+     * Return the name of current process.
+     *
+     * @return the name of current process
+     */
+    public static String getCurrentProcessName() {
+        String name = getCurrentProcessNameByFile();
+        if (!TextUtils.isEmpty(name)) return name;
+        name = getCurrentProcessNameByAms();
+        if (!TextUtils.isEmpty(name)) return name;
+        name = getCurrentProcessNameByReflect();
+        return name;
+    }
+
+    private static String getCurrentProcessNameByFile() {
+        try {
+            File file = new File("/proc/" + android.os.Process.myPid() + "/" + "cmdline");
+            BufferedReader mBufferedReader = new BufferedReader(new FileReader(file));
+            String processName = mBufferedReader.readLine().trim();
+            mBufferedReader.close();
+            return processName;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    private static String getCurrentProcessNameByAms() {
+        try {
+            ActivityManager am = (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+            if (am == null) return "";
+            List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
+            if (info == null || info.size() == 0) return "";
+            int pid = android.os.Process.myPid();
+            for (ActivityManager.RunningAppProcessInfo aInfo : info) {
+                if (aInfo.pid == pid) {
+                    if (aInfo.processName != null) {
+                        return aInfo.processName;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            return "";
+        }
+        return "";
+    }
+
+    private static String getCurrentProcessNameByReflect() {
+        String processName = "";
+        try {
+            Application app = Utils.getApp();
+            Field loadedApkField = app.getClass().getField("mLoadedApk");
+            loadedApkField.setAccessible(true);
+            Object loadedApk = loadedApkField.get(app);
+
+            Field activityThreadField = loadedApk.getClass().getDeclaredField("mActivityThread");
+            activityThreadField.setAccessible(true);
+            Object activityThread = activityThreadField.get(loadedApk);
+
+            Method getProcessName = activityThread.getClass().getDeclaredMethod("getProcessName");
+            processName = (String) getProcessName.invoke(activityThread);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return processName;
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ReflectUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
similarity index 99%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
index 78527c7839..1eafa486cf 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
@@ -234,6 +234,7 @@ private Field getField(String name) throws IllegalAccessException {
                 modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
             } catch (NoSuchFieldException ignore) {
                 // runs in android will happen
+                field.setAccessible(true);
             }
         }
         return field;
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/RegexUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
similarity index 76%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/RegexUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
index ba57fab956..658cf6aa68 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/RegexUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
@@ -1,6 +1,6 @@
 package com.blankj.utilcode.util;
 
-import android.support.v4.util.SimpleArrayMap;
+import androidx.collection.SimpleArrayMap;
 
 import com.blankj.utilcode.constant.RegexConstants;
 
@@ -40,6 +40,54 @@ public static boolean isMobileSimple(final CharSequence input) {
         return isMatch(RegexConstants.REGEX_MOBILE_SIMPLE, input);
     }
 
+    
+    /**
+     * Returns the domain part of a given Email address
+     *
+     * @param email The Email address. E.g Returns "protonmail.com" from the given Email "johnsmith@protonmail.com".
+     * @return the domain part of a given Email address.
+     */
+    public static String extractEmailProvider(String email) {
+        return email.substring(email.lastIndexOf("@") + 1);
+    }
+
+    /**
+     * Returns the username part of a given Email address. E.g. Returns "johnsmith" from the given Email "johnsmith@protonmail.com".
+     *
+     * @param email The Email address.
+     * @return the username part of a given Email address.
+     */
+    public static String extractEmailUsername(String email) {
+        return email.substring(0, email.lastIndexOf("@"));
+    }
+
+
+    /**
+     * Return whether a given Email address is on a specified Email provider. E.g. "johnsmith@protonmail.com" and "gmail.com" will return false.
+     *
+     * @param email The Email address.
+     * @param emailProvider The Email provider to testify against.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFromEmailProvider(String email, String emailProvider) {
+        return extractEmailProvider(email).equalsIgnoreCase(emailProvider);
+    }
+
+    /**
+     * Return whether a given Email address is on any of the specified Email providers list (array). E.g. Useful if you pass it a list of real Email provider services and check if the Email is a disposable Email or a real one.
+     *
+     * @param email The Email address.
+     * @param emailProviders The list of Email providers to testify against.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFromAnyOfEmailProviders(String email, String[] emailProviders) {
+        return com.blankj.utilcode.util.ArrayUtils.contains(emailProviders, extractEmailProvider(email));
+    }
+    
+    
+    
+    
+    
     /**
      * Return whether input matches regex of exact mobile.
      *
@@ -47,7 +95,33 @@ public static boolean isMobileSimple(final CharSequence input) {
      * @return {@code true}: yes<br>{@code false}: no
      */
     public static boolean isMobileExact(final CharSequence input) {
-        return isMatch(RegexConstants.REGEX_MOBILE_EXACT, input);
+        return isMobileExact(input, null);
+    }
+
+    /**
+     * Return whether input matches regex of exact mobile.
+     *
+     * @param input       The input.
+     * @param newSegments The new segments of mobile number.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMobileExact(final CharSequence input, List<String> newSegments) {
+        boolean match = isMatch(RegexConstants.REGEX_MOBILE_EXACT, input);
+        if (match) return true;
+        if (newSegments == null) return false;
+        if (input == null || input.length() != 11) return false;
+        String content = input.toString();
+        for (char c : content.toCharArray()) {
+            if (!Character.isDigit(c)) {
+                return false;
+            }
+        }
+        for (String newSegment : newSegments) {
+            if (content.startsWith(newSegment)) {
+                return true;
+            }
+        }
+        return false;
     }
 
     /**
@@ -128,9 +202,10 @@ public static boolean isIDCard18Exact(final CharSequence input) {
                 CITY_MAP.put("64", "宁夏");
                 CITY_MAP.put("65", "新疆");
 
-                CITY_MAP.put("71", "台湾");
+                CITY_MAP.put("71", "台湾老");
                 CITY_MAP.put("81", "香港");
                 CITY_MAP.put("82", "澳门");
+                CITY_MAP.put("83", "台湾新");
                 CITY_MAP.put("91", "国外");
             }
             if (CITY_MAP.get(input.subSequence(0, 2).toString()) != null) {
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
new file mode 100644
index 0000000000..ca6538a5e9
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
@@ -0,0 +1,303 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.drawable.Drawable;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.Collections;
+import java.util.List;
+
+import androidx.annotation.DrawableRes;
+import androidx.annotation.RawRes;
+import androidx.core.content.ContextCompat;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/05/07
+ *     desc  : utils about resource
+ * </pre>
+ */
+public final class ResourceUtils {
+
+    private static final int BUFFER_SIZE = 8192;
+
+    private ResourceUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return the drawable by identifier.
+     *
+     * @param id The identifier.
+     * @return the drawable by identifier
+     */
+    public static Drawable getDrawable(@DrawableRes int id) {
+        return ContextCompat.getDrawable(Utils.getApp(), id);
+    }
+
+    /**
+     * Return the id identifier by name.
+     *
+     * @param name The name of id.
+     * @return the id identifier by name
+     */
+    public static int getIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "id", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the string identifier by name.
+     *
+     * @param name The name of string.
+     * @return the string identifier by name
+     */
+    public static int getStringIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "string", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the color identifier by name.
+     *
+     * @param name The name of color.
+     * @return the color identifier by name
+     */
+    public static int getColorIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "color", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the dimen identifier by name.
+     *
+     * @param name The name of dimen.
+     * @return the dimen identifier by name
+     */
+    public static int getDimenIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "dimen", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the drawable identifier by name.
+     *
+     * @param name The name of drawable.
+     * @return the drawable identifier by name
+     */
+    public static int getDrawableIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "drawable", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the mipmap identifier by name.
+     *
+     * @param name The name of mipmap.
+     * @return the mipmap identifier by name
+     */
+    public static int getMipmapIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "mipmap", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the layout identifier by name.
+     *
+     * @param name The name of layout.
+     * @return the layout identifier by name
+     */
+    public static int getLayoutIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "layout", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the style identifier by name.
+     *
+     * @param name The name of style.
+     * @return the style identifier by name
+     */
+    public static int getStyleIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "style", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the anim identifier by name.
+     *
+     * @param name The name of anim.
+     * @return the anim identifier by name
+     */
+    public static int getAnimIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "anim", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Return the menu identifier by name.
+     *
+     * @param name The name of menu.
+     * @return the menu identifier by name
+     */
+    public static int getMenuIdByName(String name) {
+        return Utils.getApp().getResources().getIdentifier(name, "menu", Utils.getApp().getPackageName());
+    }
+
+    /**
+     * Copy the file from assets.
+     *
+     * @param assetsFilePath The path of file in assets.
+     * @param destFilePath   The path of destination file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean copyFileFromAssets(final String assetsFilePath, final String destFilePath) {
+        boolean res = true;
+        try {
+            String[] assets = Utils.getApp().getAssets().list(assetsFilePath);
+            if (assets != null && assets.length > 0) {
+                for (String asset : assets) {
+                    res &= copyFileFromAssets(assetsFilePath + "/" + asset, destFilePath + "/" + asset);
+                }
+            } else {
+                res = UtilsBridge.writeFileFromIS(
+                        destFilePath,
+                        Utils.getApp().getAssets().open(assetsFilePath)
+                );
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            res = false;
+        }
+        return res;
+    }
+
+    /**
+     * Return the content of assets.
+     *
+     * @param assetsFilePath The path of file in assets.
+     * @return the content of assets
+     */
+    public static String readAssets2String(final String assetsFilePath) {
+        return readAssets2String(assetsFilePath, null);
+    }
+
+    /**
+     * Return the content of assets.
+     *
+     * @param assetsFilePath The path of file in assets.
+     * @param charsetName    The name of charset.
+     * @return the content of assets
+     */
+    public static String readAssets2String(final String assetsFilePath, final String charsetName) {
+        try {
+            InputStream is = Utils.getApp().getAssets().open(assetsFilePath);
+            byte[] bytes = UtilsBridge.inputStream2Bytes(is);
+            if (bytes == null) return "";
+            if (UtilsBridge.isSpace(charsetName)) {
+                return new String(bytes);
+            } else {
+                try {
+                    return new String(bytes, charsetName);
+                } catch (UnsupportedEncodingException e) {
+                    e.printStackTrace();
+                    return "";
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            return "";
+        }
+    }
+
+    /**
+     * Return the content of file in assets.
+     *
+     * @param assetsPath The path of file in assets.
+     * @return the content of file in assets
+     */
+    public static List<String> readAssets2List(final String assetsPath) {
+        return readAssets2List(assetsPath, "");
+    }
+
+    /**
+     * Return the content of file in assets.
+     *
+     * @param assetsPath  The path of file in assets.
+     * @param charsetName The name of charset.
+     * @return the content of file in assets
+     */
+    public static List<String> readAssets2List(final String assetsPath,
+                                               final String charsetName) {
+        try {
+            return UtilsBridge.inputStream2Lines(Utils.getApp().getResources().getAssets().open(assetsPath), charsetName);
+        } catch (IOException e) {
+            e.printStackTrace();
+            return Collections.emptyList();
+        }
+    }
+
+
+    /**
+     * Copy the file from raw.
+     *
+     * @param resId        The resource id.
+     * @param destFilePath The path of destination file.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean copyFileFromRaw(@RawRes final int resId, final String destFilePath) {
+        return UtilsBridge.writeFileFromIS(
+                destFilePath,
+                Utils.getApp().getResources().openRawResource(resId)
+        );
+    }
+
+    /**
+     * Return the content of resource in raw.
+     *
+     * @param resId The resource id.
+     * @return the content of resource in raw
+     */
+    public static String readRaw2String(@RawRes final int resId) {
+        return readRaw2String(resId, null);
+    }
+
+    /**
+     * Return the content of resource in raw.
+     *
+     * @param resId       The resource id.
+     * @param charsetName The name of charset.
+     * @return the content of resource in raw
+     */
+    public static String readRaw2String(@RawRes final int resId, final String charsetName) {
+        InputStream is = Utils.getApp().getResources().openRawResource(resId);
+        byte[] bytes = UtilsBridge.inputStream2Bytes(is);
+        if (bytes == null) return null;
+        if (UtilsBridge.isSpace(charsetName)) {
+            return new String(bytes);
+        } else {
+            try {
+                return new String(bytes, charsetName);
+            } catch (UnsupportedEncodingException e) {
+                e.printStackTrace();
+                return "";
+            }
+        }
+    }
+
+    /**
+     * Return the content of resource in raw.
+     *
+     * @param resId The resource id.
+     * @return the content of file in assets
+     */
+    public static List<String> readRaw2List(@RawRes final int resId) {
+        return readRaw2List(resId, "");
+    }
+
+    /**
+     * Return the content of resource in raw.
+     *
+     * @param resId       The resource id.
+     * @param charsetName The name of charset.
+     * @return the content of file in assets
+     */
+    public static List<String> readRaw2List(@RawRes final int resId,
+                                            final String charsetName) {
+        return UtilsBridge.inputStream2Lines(Utils.getApp().getResources().openRawResource(resId), charsetName);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
new file mode 100644
index 0000000000..49e1cf6fcf
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/RomUtils.java
@@ -0,0 +1,456 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.os.Build;
+import android.os.Environment;
+import android.text.TextUtils;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.lang.reflect.Method;
+import java.util.Properties;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/07/04
+ *     desc  : utils about rom
+ * </pre>
+ */
+public final class RomUtils {
+
+    private static final String[] ROM_HUAWEI    = {"huawei"};
+    private static final String[] ROM_VIVO      = {"vivo"};
+    private static final String[] ROM_XIAOMI    = {"xiaomi"};
+    private static final String[] ROM_OPPO      = {"oppo"};
+    private static final String[] ROM_LEECO     = {"leeco", "letv"};
+    private static final String[] ROM_360       = {"360", "qiku"};
+    private static final String[] ROM_ZTE       = {"zte"};
+    private static final String[] ROM_ONEPLUS   = {"oneplus"};
+    private static final String[] ROM_NUBIA     = {"nubia"};
+    private static final String[] ROM_COOLPAD   = {"coolpad", "yulong"};
+    private static final String[] ROM_LG        = {"lg", "lge"};
+    private static final String[] ROM_GOOGLE    = {"google"};
+    private static final String[] ROM_SAMSUNG   = {"samsung"};
+    private static final String[] ROM_MEIZU     = {"meizu"};
+    private static final String[] ROM_LENOVO    = {"lenovo"};
+    private static final String[] ROM_SMARTISAN = {"smartisan", "deltainno"};
+    private static final String[] ROM_HTC       = {"htc"};
+    private static final String[] ROM_SONY      = {"sony"};
+    private static final String[] ROM_GIONEE    = {"gionee", "amigo"};
+    private static final String[] ROM_MOTOROLA  = {"motorola"};
+
+    private static final String VERSION_PROPERTY_HUAWEI  = "ro.build.version.emui";
+    private static final String VERSION_PROPERTY_VIVO    = "ro.vivo.os.build.display.id";
+    private static final String VERSION_PROPERTY_XIAOMI  = "ro.build.version.incremental";
+    private static final String VERSION_PROPERTY_OPPO    = "ro.build.version.opporom";
+    private static final String VERSION_PROPERTY_LEECO   = "ro.letv.release.version";
+    private static final String VERSION_PROPERTY_360     = "ro.build.uiversion";
+    private static final String VERSION_PROPERTY_ZTE     = "ro.build.MiFavor_version";
+    private static final String VERSION_PROPERTY_ONEPLUS = "ro.rom.version";
+    private static final String VERSION_PROPERTY_NUBIA   = "ro.build.rom.id";
+    private final static String UNKNOWN                  = "unknown";
+
+    private static RomInfo bean = null;
+
+    private RomUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether the rom is made by huawei.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isHuawei() {
+        return ROM_HUAWEI[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by vivo.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isVivo() {
+        return ROM_VIVO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by xiaomi.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isXiaomi() {
+        return ROM_XIAOMI[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by oppo.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isOppo() {
+        return ROM_OPPO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by leeco.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLeeco() {
+        return ROM_LEECO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by 360.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean is360() {
+        return ROM_360[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by zte.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isZte() {
+        return ROM_ZTE[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by oneplus.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isOneplus() {
+        return ROM_ONEPLUS[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by nubia.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isNubia() {
+        return ROM_NUBIA[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by coolpad.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isCoolpad() {
+        return ROM_COOLPAD[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by lg.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLg() {
+        return ROM_LG[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by google.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isGoogle() {
+        return ROM_GOOGLE[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by samsung.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSamsung() {
+        return ROM_SAMSUNG[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by meizu.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMeizu() {
+        return ROM_MEIZU[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by lenovo.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLenovo() {
+        return ROM_LENOVO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by smartisan.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSmartisan() {
+        return ROM_SMARTISAN[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by htc.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isHtc() {
+        return ROM_HTC[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by sony.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSony() {
+        return ROM_SONY[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by gionee.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isGionee() {
+        return ROM_GIONEE[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by motorola.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMotorola() {
+        return ROM_MOTOROLA[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return the rom's information.
+     *
+     * @return the rom's information
+     */
+    public static RomInfo getRomInfo() {
+        if (bean != null) return bean;
+        bean = new RomInfo();
+        final String brand = getBrand();
+        final String manufacturer = getManufacturer();
+        if (isRightRom(brand, manufacturer, ROM_HUAWEI)) {
+            bean.name = ROM_HUAWEI[0];
+            String version = getRomVersion(VERSION_PROPERTY_HUAWEI);
+            String[] temp = version.split("_");
+            if (temp.length > 1) {
+                bean.version = temp[1];
+            } else {
+                bean.version = version;
+            }
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_VIVO)) {
+            bean.name = ROM_VIVO[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_VIVO);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_XIAOMI)) {
+            bean.name = ROM_XIAOMI[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_XIAOMI);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_OPPO)) {
+            bean.name = ROM_OPPO[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_OPPO);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_LEECO)) {
+            bean.name = ROM_LEECO[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_LEECO);
+            return bean;
+        }
+
+        if (isRightRom(brand, manufacturer, ROM_360)) {
+            bean.name = ROM_360[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_360);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_ZTE)) {
+            bean.name = ROM_ZTE[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_ZTE);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_ONEPLUS)) {
+            bean.name = ROM_ONEPLUS[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_ONEPLUS);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_NUBIA)) {
+            bean.name = ROM_NUBIA[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_NUBIA);
+            return bean;
+        }
+
+        if (isRightRom(brand, manufacturer, ROM_COOLPAD)) {
+            bean.name = ROM_COOLPAD[0];
+        } else if (isRightRom(brand, manufacturer, ROM_LG)) {
+            bean.name = ROM_LG[0];
+        } else if (isRightRom(brand, manufacturer, ROM_GOOGLE)) {
+            bean.name = ROM_GOOGLE[0];
+        } else if (isRightRom(brand, manufacturer, ROM_SAMSUNG)) {
+            bean.name = ROM_SAMSUNG[0];
+        } else if (isRightRom(brand, manufacturer, ROM_MEIZU)) {
+            bean.name = ROM_MEIZU[0];
+        } else if (isRightRom(brand, manufacturer, ROM_LENOVO)) {
+            bean.name = ROM_LENOVO[0];
+        } else if (isRightRom(brand, manufacturer, ROM_SMARTISAN)) {
+            bean.name = ROM_SMARTISAN[0];
+        } else if (isRightRom(brand, manufacturer, ROM_HTC)) {
+            bean.name = ROM_HTC[0];
+        } else if (isRightRom(brand, manufacturer, ROM_SONY)) {
+            bean.name = ROM_SONY[0];
+        } else if (isRightRom(brand, manufacturer, ROM_GIONEE)) {
+            bean.name = ROM_GIONEE[0];
+        } else if (isRightRom(brand, manufacturer, ROM_MOTOROLA)) {
+            bean.name = ROM_MOTOROLA[0];
+        } else {
+            bean.name = manufacturer;
+        }
+        bean.version = getRomVersion("");
+        return bean;
+    }
+
+    private static boolean isRightRom(final String brand, final String manufacturer, final String... names) {
+        for (String name : names) {
+            if (brand.contains(name) || manufacturer.contains(name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static String getManufacturer() {
+        try {
+            String manufacturer = Build.MANUFACTURER;
+            if (!TextUtils.isEmpty(manufacturer)) {
+                return manufacturer.toLowerCase();
+            }
+        } catch (Throwable ignore) {/**/}
+        return UNKNOWN;
+    }
+
+    private static String getBrand() {
+        try {
+            String brand = Build.BRAND;
+            if (!TextUtils.isEmpty(brand)) {
+                return brand.toLowerCase();
+            }
+        } catch (Throwable ignore) {/**/}
+        return UNKNOWN;
+    }
+
+    private static String getRomVersion(final String propertyName) {
+        String ret = "";
+        if (!TextUtils.isEmpty(propertyName)) {
+            ret = getSystemProperty(propertyName);
+        }
+        if (TextUtils.isEmpty(ret) || ret.equals(UNKNOWN)) {
+            try {
+                String display = Build.DISPLAY;
+                if (!TextUtils.isEmpty(display)) {
+                    ret = display.toLowerCase();
+                }
+            } catch (Throwable ignore) {/**/}
+        }
+        if (TextUtils.isEmpty(ret)) {
+            return UNKNOWN;
+        }
+        return ret;
+    }
+
+    private static String getSystemProperty(final String name) {
+        String prop = getSystemPropertyByShell(name);
+        if (!TextUtils.isEmpty(prop)) return prop;
+        prop = getSystemPropertyByStream(name);
+        if (!TextUtils.isEmpty(prop)) return prop;
+        if (Build.VERSION.SDK_INT < 28) {
+            return getSystemPropertyByReflect(name);
+        }
+        return prop;
+    }
+
+    private static String getSystemPropertyByShell(final String propName) {
+        String line;
+        BufferedReader input = null;
+        try {
+            Process p = Runtime.getRuntime().exec("getprop " + propName);
+            input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
+            String ret = input.readLine();
+            if (ret != null) {
+                return ret;
+            }
+        } catch (IOException ignore) {
+        } finally {
+            if (input != null) {
+                try {
+                    input.close();
+                } catch (IOException ignore) {/**/}
+            }
+        }
+        return "";
+    }
+
+    private static String getSystemPropertyByStream(final String key) {
+        try {
+            Properties prop = new Properties();
+            FileInputStream is = new FileInputStream(
+                    new File(Environment.getRootDirectory(), "build.prop")
+            );
+            prop.load(is);
+            return prop.getProperty(key, "");
+        } catch (Exception ignore) {/**/}
+        return "";
+    }
+
+    private static String getSystemPropertyByReflect(String key) {
+        try {
+            @SuppressLint("PrivateApi")
+            Class<?> clz = Class.forName("android.os.SystemProperties");
+            Method getMethod = clz.getMethod("get", String.class, String.class);
+            return (String) getMethod.invoke(clz, key, "");
+        } catch (Exception e) {/**/}
+        return "";
+    }
+
+    public static class RomInfo {
+        private String name;
+        private String version;
+
+        public String getName() {
+            return name;
+        }
+
+        public String getVersion() {
+            return version;
+        }
+
+        @Override
+        public String toString() {
+            return "RomInfo{name=" + name +
+                    ", version=" + version + "}";
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
new file mode 100644
index 0000000000..10952e779d
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
@@ -0,0 +1,212 @@
+package com.blankj.utilcode.util;
+
+import android.content.Context;
+import android.os.Environment;
+import android.os.storage.StorageManager;
+import android.os.storage.StorageVolume;
+import android.text.format.Formatter;
+
+import java.lang.reflect.Array;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/11
+ *     desc  : utils about sdcard
+ * </pre>
+ */
+public final class SDCardUtils {
+
+    private SDCardUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether sdcard is enabled by environment.
+     *
+     * @return {@code true}: enabled<br>{@code false}: disabled
+     */
+    public static boolean isSDCardEnableByEnvironment() {
+        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+    }
+
+    /**
+     * Return the path of sdcard by environment.
+     *
+     * @return the path of sdcard by environment
+     */
+    public static String getSDCardPathByEnvironment() {
+        if (isSDCardEnableByEnvironment()) {
+            return Environment.getExternalStorageDirectory().getAbsolutePath();
+        }
+        return "";
+    }
+
+    /**
+     * Return the information of sdcard.
+     *
+     * @return the information of sdcard
+     */
+    public static List<SDCardInfo> getSDCardInfo() {
+        List<SDCardInfo> paths = new ArrayList<>();
+        StorageManager sm = (StorageManager) Utils.getApp().getSystemService(Context.STORAGE_SERVICE);
+        if (sm == null) return paths;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
+            List<StorageVolume> storageVolumes = sm.getStorageVolumes();
+            try {
+                //noinspection JavaReflectionMemberAccess
+                Method getPathMethod = StorageVolume.class.getMethod("getPath");
+                for (StorageVolume storageVolume : storageVolumes) {
+                    boolean isRemovable = storageVolume.isRemovable();
+                    String state = storageVolume.getState();
+                    String path = (String) getPathMethod.invoke(storageVolume);
+                    paths.add(new SDCardInfo(path, state, isRemovable));
+                }
+            } catch (NoSuchMethodException e) {
+                e.printStackTrace();
+            } catch (IllegalAccessException e) {
+                e.printStackTrace();
+            } catch (InvocationTargetException e) {
+                e.printStackTrace();
+            }
+        } else {
+            try {
+                Class<?> storageVolumeClazz = Class.forName("android.os.storage.StorageVolume");
+                //noinspection JavaReflectionMemberAccess
+                Method getPathMethod = storageVolumeClazz.getMethod("getPath");
+                Method isRemovableMethod = storageVolumeClazz.getMethod("isRemovable");
+                //noinspection JavaReflectionMemberAccess
+                Method getVolumeStateMethod = StorageManager.class.getMethod("getVolumeState", String.class);
+                //noinspection JavaReflectionMemberAccess
+                Method getVolumeListMethod = StorageManager.class.getMethod("getVolumeList");
+                Object result = getVolumeListMethod.invoke(sm);
+                final int length = Array.getLength(result);
+                for (int i = 0; i < length; i++) {
+                    Object storageVolumeElement = Array.get(result, i);
+                    String path = (String) getPathMethod.invoke(storageVolumeElement);
+                    boolean isRemovable = (Boolean) isRemovableMethod.invoke(storageVolumeElement);
+                    String state = (String) getVolumeStateMethod.invoke(sm, path);
+                    paths.add(new SDCardInfo(path, state, isRemovable));
+                }
+            } catch (ClassNotFoundException e) {
+                e.printStackTrace();
+            } catch (InvocationTargetException e) {
+                e.printStackTrace();
+            } catch (NoSuchMethodException e) {
+                e.printStackTrace();
+            } catch (IllegalAccessException e) {
+                e.printStackTrace();
+            }
+        }
+        return paths;
+    }
+
+    /**
+     * Return the ptah of mounted sdcard.
+     *
+     * @return the ptah of mounted sdcard.
+     */
+    public static List<String> getMountedSDCardPath() {
+        List<String> path = new ArrayList<>();
+        List<SDCardInfo> sdCardInfo = getSDCardInfo();
+        if (sdCardInfo == null || sdCardInfo.isEmpty()) return path;
+        for (SDCardInfo cardInfo : sdCardInfo) {
+            String state = cardInfo.state;
+            if (state == null) continue;
+            if ("mounted".equals(state.toLowerCase())) {
+                path.add(cardInfo.path);
+            }
+        }
+        return path;
+    }
+
+
+    /**
+     * Return the total size of external storage
+     *
+     * @return the total size of external storage
+     */
+    public static long getExternalTotalSize() {
+        return UtilsBridge.getFsTotalSize(getSDCardPathByEnvironment());
+    }
+
+    /**
+     * Return the available size of external storage.
+     *
+     * @return the available size of external storage
+     */
+    public static long getExternalAvailableSize() {
+        return UtilsBridge.getFsAvailableSize(getSDCardPathByEnvironment());
+    }
+
+    /**
+     * Return the total size of internal storage
+     *
+     * @return the total size of internal storage
+     */
+    public static long getInternalTotalSize() {
+        return UtilsBridge.getFsTotalSize(Environment.getDataDirectory().getAbsolutePath());
+    }
+
+    /**
+     * Return the available size of internal storage.
+     *
+     * @return the available size of internal storage
+     */
+    public static long getInternalAvailableSize() {
+        return UtilsBridge.getFsAvailableSize(Environment.getDataDirectory().getAbsolutePath());
+    }
+
+    public static class SDCardInfo {
+
+        private String  path;
+        private String  state;
+        private boolean isRemovable;
+        private long    totalSize;
+        private long    availableSize;
+
+        SDCardInfo(String path, String state, boolean isRemovable) {
+            this.path = path;
+            this.state = state;
+            this.isRemovable = isRemovable;
+            this.totalSize = UtilsBridge.getFsTotalSize(path);
+            this.availableSize = UtilsBridge.getFsAvailableSize(path);
+        }
+
+        public String getPath() {
+            return path;
+        }
+
+        public String getState() {
+            return state;
+        }
+
+        public boolean isRemovable() {
+            return isRemovable;
+        }
+
+        public long getTotalSize() {
+            return totalSize;
+        }
+
+        public long getAvailableSize() {
+            return availableSize;
+        }
+
+        @Override
+        public String toString() {
+            return "SDCardInfo {" +
+                    "path = " + path +
+                    ", state = " + state +
+                    ", isRemovable = " + isRemovable +
+                    ", totalSize = " + Formatter.formatFileSize(Utils.getApp(), totalSize) +
+                    ", availableSize = " + Formatter.formatFileSize(Utils.getApp(), availableSize) +
+                    '}';
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPStaticUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPStaticUtils.java
new file mode 100644
index 0000000000..21274c3023
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPStaticUtils.java
@@ -0,0 +1,729 @@
+package com.blankj.utilcode.util;
+
+import android.content.SharedPreferences;
+import androidx.annotation.NonNull;
+
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/04
+ *     desc  : utils about shared preference
+ * </pre>
+ */
+public final class SPStaticUtils {
+
+    private static SPUtils sDefaultSPUtils;
+
+    /**
+     * Set the default instance of {@link SPUtils}.
+     *
+     * @param spUtils The default instance of {@link SPUtils}.
+     */
+    public static void setDefaultSPUtils(final SPUtils spUtils) {
+        sDefaultSPUtils = spUtils;
+    }
+
+    /**
+     * Put the string value in sp.
+     *
+     * @param key   The key of sp.
+     * @param value The value of sp.
+     */
+    public static void put(@NonNull final String key, final String value) {
+        put(key, value, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the string value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void put(@NonNull final String key, final String value, final boolean isCommit) {
+        put(key, value, isCommit, getDefaultSPUtils());
+    }
+
+
+    /**
+     * Return the string value in sp.
+     *
+     * @param key The key of sp.
+     * @return the string value if sp exists or {@code ""} otherwise
+     */
+    public static String getString(@NonNull final String key) {
+        return getString(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the string value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @return the string value if sp exists or {@code defaultValue} otherwise
+     */
+    public static String getString(@NonNull final String key, final String defaultValue) {
+        return getString(key, defaultValue, getDefaultSPUtils());
+    }
+
+
+    /**
+     * Put the int value in sp.
+     *
+     * @param key   The key of sp.
+     * @param value The value of sp.
+     */
+    public static void put(@NonNull final String key, final int value) {
+        put(key, value, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the int value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void put(@NonNull final String key, final int value, final boolean isCommit) {
+        put(key, value, isCommit, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the int value in sp.
+     *
+     * @param key The key of sp.
+     * @return the int value if sp exists or {@code -1} otherwise
+     */
+    public static int getInt(@NonNull final String key) {
+        return getInt(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the int value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @return the int value if sp exists or {@code defaultValue} otherwise
+     */
+    public static int getInt(@NonNull final String key, final int defaultValue) {
+        return getInt(key, defaultValue, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the long value in sp.
+     *
+     * @param key   The key of sp.
+     * @param value The value of sp.
+     */
+    public static void put(@NonNull final String key, final long value) {
+        put(key, value, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the long value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void put(@NonNull final String key, final long value, final boolean isCommit) {
+        put(key, value, isCommit, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the long value in sp.
+     *
+     * @param key The key of sp.
+     * @return the long value if sp exists or {@code -1} otherwise
+     */
+    public static long getLong(@NonNull final String key) {
+        return getLong(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the long value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @return the long value if sp exists or {@code defaultValue} otherwise
+     */
+    public static long getLong(@NonNull final String key, final long defaultValue) {
+        return getLong(key, defaultValue, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the float value in sp.
+     *
+     * @param key   The key of sp.
+     * @param value The value of sp.
+     */
+    public static void put(@NonNull final String key, final float value) {
+        put(key, value, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the float value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void put(@NonNull final String key, final float value, final boolean isCommit) {
+        put(key, value, isCommit, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the float value in sp.
+     *
+     * @param key The key of sp.
+     * @return the float value if sp exists or {@code -1f} otherwise
+     */
+    public static float getFloat(@NonNull final String key) {
+        return getFloat(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the float value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @return the float value if sp exists or {@code defaultValue} otherwise
+     */
+    public static float getFloat(@NonNull final String key, final float defaultValue) {
+        return getFloat(key, defaultValue, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the boolean value in sp.
+     *
+     * @param key   The key of sp.
+     * @param value The value of sp.
+     */
+    public static void put(@NonNull final String key, final boolean value) {
+        put(key, value, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the boolean value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void put(@NonNull final String key, final boolean value, final boolean isCommit) {
+        put(key, value, isCommit, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the boolean value in sp.
+     *
+     * @param key The key of sp.
+     * @return the boolean value if sp exists or {@code false} otherwise
+     */
+    public static boolean getBoolean(@NonNull final String key) {
+        return getBoolean(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the boolean value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @return the boolean value if sp exists or {@code defaultValue} otherwise
+     */
+    public static boolean getBoolean(@NonNull final String key, final boolean defaultValue) {
+        return getBoolean(key, defaultValue, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the set of string value in sp.
+     *
+     * @param key   The key of sp.
+     * @param value The value of sp.
+     */
+    public static void put(@NonNull final String key, final Set<String> value) {
+        put(key, value, getDefaultSPUtils());
+    }
+
+    /**
+     * Put the set of string value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void put(@NonNull final String key,
+                           final Set<String> value,
+                           final boolean isCommit) {
+        put(key, value, isCommit, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the set of string value in sp.
+     *
+     * @param key The key of sp.
+     * @return the set of string value if sp exists
+     * or {@code Collections.<String>emptySet()} otherwise
+     */
+    public static Set<String> getStringSet(@NonNull final String key) {
+        return getStringSet(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Return the set of string value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @return the set of string value if sp exists or {@code defaultValue} otherwise
+     */
+    public static Set<String> getStringSet(@NonNull final String key,
+                                           final Set<String> defaultValue) {
+        return getStringSet(key, defaultValue, getDefaultSPUtils());
+    }
+
+    /**
+     * Return all values in sp.
+     *
+     * @return all values in sp
+     */
+    public static Map<String, ?> getAll() {
+        return getAll(getDefaultSPUtils());
+    }
+
+    /**
+     * Return whether the sp contains the preference.
+     *
+     * @param key The key of sp.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean contains(@NonNull final String key) {
+        return contains(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Remove the preference in sp.
+     *
+     * @param key The key of sp.
+     */
+    public static void remove(@NonNull final String key) {
+        remove(key, getDefaultSPUtils());
+    }
+
+    /**
+     * Remove the preference in sp.
+     *
+     * @param key      The key of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void remove(@NonNull final String key, final boolean isCommit) {
+        remove(key, isCommit, getDefaultSPUtils());
+    }
+
+    /**
+     * Remove all preferences in sp.
+     */
+    public static void clear() {
+        clear(getDefaultSPUtils());
+    }
+
+    /**
+     * Remove all preferences in sp.
+     *
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     */
+    public static void clear(final boolean isCommit) {
+        clear(isCommit, getDefaultSPUtils());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // dividing line
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * Put the string value in sp.
+     *
+     * @param key     The key of sp.
+     * @param value   The value of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key, final String value, @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value);
+    }
+
+    /**
+     * Put the string value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final String value,
+                           final boolean isCommit,
+                           @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value, isCommit);
+    }
+
+
+    /**
+     * Return the string value in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return the string value if sp exists or {@code ""} otherwise
+     */
+    public static String getString(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.getString(key);
+    }
+
+    /**
+     * Return the string value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @param spUtils      The instance of {@link SPUtils}.
+     * @return the string value if sp exists or {@code defaultValue} otherwise
+     */
+    public static String getString(@NonNull final String key,
+                                   final String defaultValue,
+                                   @NonNull final SPUtils spUtils) {
+        return spUtils.getString(key, defaultValue);
+    }
+
+
+    /**
+     * Put the int value in sp.
+     *
+     * @param key     The key of sp.
+     * @param value   The value of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key, final int value, @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value);
+    }
+
+    /**
+     * Put the int value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final int value,
+                           final boolean isCommit,
+                           @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value, isCommit);
+    }
+
+    /**
+     * Return the int value in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return the int value if sp exists or {@code -1} otherwise
+     */
+    public static int getInt(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.getInt(key);
+    }
+
+    /**
+     * Return the int value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @param spUtils      The instance of {@link SPUtils}.
+     * @return the int value if sp exists or {@code defaultValue} otherwise
+     */
+    public static int getInt(@NonNull final String key, final int defaultValue, @NonNull final SPUtils spUtils) {
+        return spUtils.getInt(key, defaultValue);
+    }
+
+    /**
+     * Put the long value in sp.
+     *
+     * @param key     The key of sp.
+     * @param value   The value of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key, final long value, @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value);
+    }
+
+    /**
+     * Put the long value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final long value,
+                           final boolean isCommit,
+                           @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value, isCommit);
+    }
+
+    /**
+     * Return the long value in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return the long value if sp exists or {@code -1} otherwise
+     */
+    public static long getLong(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.getLong(key);
+    }
+
+    /**
+     * Return the long value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @param spUtils      The instance of {@link SPUtils}.
+     * @return the long value if sp exists or {@code defaultValue} otherwise
+     */
+    public static long getLong(@NonNull final String key, final long defaultValue, @NonNull final SPUtils spUtils) {
+        return spUtils.getLong(key, defaultValue);
+    }
+
+    /**
+     * Put the float value in sp.
+     *
+     * @param key     The key of sp.
+     * @param value   The value of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key, final float value, @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value);
+    }
+
+    /**
+     * Put the float value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final float value,
+                           final boolean isCommit,
+                           @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value, isCommit);
+    }
+
+    /**
+     * Return the float value in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return the float value if sp exists or {@code -1f} otherwise
+     */
+    public static float getFloat(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.getFloat(key);
+    }
+
+    /**
+     * Return the float value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @param spUtils      The instance of {@link SPUtils}.
+     * @return the float value if sp exists or {@code defaultValue} otherwise
+     */
+    public static float getFloat(@NonNull final String key, final float defaultValue, @NonNull final SPUtils spUtils) {
+        return spUtils.getFloat(key, defaultValue);
+    }
+
+    /**
+     * Put the boolean value in sp.
+     *
+     * @param key     The key of sp.
+     * @param value   The value of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key, final boolean value, @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value);
+    }
+
+    /**
+     * Put the boolean value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final boolean value,
+                           final boolean isCommit,
+                           @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value, isCommit);
+    }
+
+    /**
+     * Return the boolean value in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return the boolean value if sp exists or {@code false} otherwise
+     */
+    public static boolean getBoolean(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.getBoolean(key);
+    }
+
+    /**
+     * Return the boolean value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @param spUtils      The instance of {@link SPUtils}.
+     * @return the boolean value if sp exists or {@code defaultValue} otherwise
+     */
+    public static boolean getBoolean(@NonNull final String key,
+                                     final boolean defaultValue,
+                                     @NonNull final SPUtils spUtils) {
+        return spUtils.getBoolean(key, defaultValue);
+    }
+
+    /**
+     * Put the set of string value in sp.
+     *
+     * @param key     The key of sp.
+     * @param value   The value of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key, final Set<String> value, @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value);
+    }
+
+    /**
+     * Put the set of string value in sp.
+     *
+     * @param key      The key of sp.
+     * @param value    The value of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void put(@NonNull final String key,
+                           final Set<String> value,
+                           final boolean isCommit,
+                           @NonNull final SPUtils spUtils) {
+        spUtils.put(key, value, isCommit);
+    }
+
+    /**
+     * Return the set of string value in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return the set of string value if sp exists
+     * or {@code Collections.<String>emptySet()} otherwise
+     */
+    public static Set<String> getStringSet(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.getStringSet(key);
+    }
+
+    /**
+     * Return the set of string value in sp.
+     *
+     * @param key          The key of sp.
+     * @param defaultValue The default value if the sp doesn't exist.
+     * @param spUtils      The instance of {@link SPUtils}.
+     * @return the set of string value if sp exists or {@code defaultValue} otherwise
+     */
+    public static Set<String> getStringSet(@NonNull final String key,
+                                           final Set<String> defaultValue,
+                                           @NonNull final SPUtils spUtils) {
+        return spUtils.getStringSet(key, defaultValue);
+    }
+
+    /**
+     * Return all values in sp.
+     *
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return all values in sp
+     */
+    public static Map<String, ?> getAll(@NonNull final SPUtils spUtils) {
+        return spUtils.getAll();
+    }
+
+    /**
+     * Return whether the sp contains the preference.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean contains(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        return spUtils.contains(key);
+    }
+
+    /**
+     * Remove the preference in sp.
+     *
+     * @param key     The key of sp.
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void remove(@NonNull final String key, @NonNull final SPUtils spUtils) {
+        spUtils.remove(key);
+    }
+
+    /**
+     * Remove the preference in sp.
+     *
+     * @param key      The key of sp.
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void remove(@NonNull final String key, final boolean isCommit, @NonNull final SPUtils spUtils) {
+        spUtils.remove(key, isCommit);
+    }
+
+    /**
+     * Remove all preferences in sp.
+     *
+     * @param spUtils The instance of {@link SPUtils}.
+     */
+    public static void clear(@NonNull final SPUtils spUtils) {
+        spUtils.clear();
+    }
+
+    /**
+     * Remove all preferences in sp.
+     *
+     * @param isCommit True to use {@link SharedPreferences.Editor#commit()},
+     *                 false to use {@link SharedPreferences.Editor#apply()}
+     * @param spUtils  The instance of {@link SPUtils}.
+     */
+    public static void clear(final boolean isCommit, @NonNull final SPUtils spUtils) {
+        spUtils.clear(isCommit);
+    }
+
+    private static SPUtils getDefaultSPUtils() {
+        return sDefaultSPUtils != null ? sDefaultSPUtils : SPUtils.getInstance();
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SPUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
similarity index 97%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/SPUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
index b4db62e898..333521e091 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SPUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
@@ -3,12 +3,12 @@
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.SharedPreferences;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * <pre>
@@ -21,8 +21,9 @@
 @SuppressLint("ApplySharedPref")
 public final class SPUtils {
 
-    private static final Map<String, SPUtils> SP_UTILS_MAP = new ConcurrentHashMap<>();
-    private              SharedPreferences    sp;
+    private static final Map<String, SPUtils> SP_UTILS_MAP = new HashMap<>();
+
+    private SharedPreferences sp;
 
     /**
      * Return the single {@link SPUtils} instance
@@ -64,8 +65,13 @@ public static SPUtils getInstance(String spName, final int mode) {
         if (isSpace(spName)) spName = "spUtils";
         SPUtils spUtils = SP_UTILS_MAP.get(spName);
         if (spUtils == null) {
-            spUtils = new SPUtils(spName, mode);
-            SP_UTILS_MAP.put(spName, spUtils);
+            synchronized (SPUtils.class) {
+                spUtils = SP_UTILS_MAP.get(spName);
+                if (spUtils == null) {
+                    spUtils = new SPUtils(spName, mode);
+                    SP_UTILS_MAP.put(spName, spUtils);
+                }
+            }
         }
         return spUtils;
     }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
new file mode 100644
index 0000000000..caeb37b946
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
@@ -0,0 +1,362 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.content.pm.ActivityInfo;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Point;
+import android.os.Build;
+import android.provider.Settings;
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresPermission;
+import android.util.DisplayMetrics;
+import android.view.Surface;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+
+import static android.Manifest.permission.WRITE_SETTINGS;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/02
+ *     desc  : utils about screen
+ * </pre>
+ */
+public final class ScreenUtils {
+
+    private ScreenUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return the width of screen, in pixel.
+     *
+     * @return the width of screen, in pixel
+     */
+    public static int getScreenWidth() {
+        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
+        Point point = new Point();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            wm.getDefaultDisplay().getRealSize(point);
+        } else {
+            wm.getDefaultDisplay().getSize(point);
+        }
+        return point.x;
+    }
+
+    /**
+     * Return the height of screen, in pixel.
+     *
+     * @return the height of screen, in pixel
+     */
+    public static int getScreenHeight() {
+        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
+        Point point = new Point();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            wm.getDefaultDisplay().getRealSize(point);
+        } else {
+            wm.getDefaultDisplay().getSize(point);
+        }
+        return point.y;
+    }
+
+    /**
+     * Return the application's width of screen, in pixel.
+     *
+     * @return the application's width of screen, in pixel
+     */
+    public static int getAppScreenWidth() {
+        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
+        Point point = new Point();
+        wm.getDefaultDisplay().getSize(point);
+        return point.x;
+    }
+
+    /**
+     * Return the application's height of screen, in pixel.
+     *
+     * @return the application's height of screen, in pixel
+     */
+    public static int getAppScreenHeight() {
+        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        if (wm == null) return -1;
+        Point point = new Point();
+        wm.getDefaultDisplay().getSize(point);
+        return point.y;
+    }
+
+    /**
+     * Return the density of screen.
+     *
+     * @return the density of screen
+     */
+    public static float getScreenDensity() {
+        return Resources.getSystem().getDisplayMetrics().density;
+    }
+
+    /**
+     * Return the screen density expressed as dots-per-inch.
+     *
+     * @return the screen density expressed as dots-per-inch
+     */
+    public static int getScreenDensityDpi() {
+        return Resources.getSystem().getDisplayMetrics().densityDpi;
+    }
+
+    /**
+     * Return the exact physical pixels per inch of the screen in the Y dimension.
+     *
+     * @return the exact physical pixels per inch of the screen in the Y dimension
+     */
+    public static float getScreenXDpi() {
+        return Resources.getSystem().getDisplayMetrics().xdpi;
+    }
+
+    /**
+     * Return the exact physical pixels per inch of the screen in the Y dimension.
+     *
+     * @return the exact physical pixels per inch of the screen in the Y dimension
+     */
+    public static float getScreenYDpi() {
+        return Resources.getSystem().getDisplayMetrics().ydpi;
+    }
+
+    /**
+     * Return the distance between the given View's X (start point of View's width) and the screen width.
+     *
+     * @return the distance between the given View's X (start point of View's width) and the screen width.
+     */
+    public int calculateDistanceByX(View view) {
+        int[] point = new int[2];
+        view.getLocationOnScreen(point);
+        return getScreenWidth() - point[0];
+    }
+
+    /**
+     * Return the distance between the given View's Y (start point of View's height) and the screen height.
+     *
+     * @return the distance between the given View's Y (start point of View's height) and the screen height.
+     */
+    public int calculateDistanceByY(View view) {
+        int[] point = new int[2];
+        view.getLocationOnScreen(point);
+        return getScreenHeight() - point[1];
+    }
+
+    /**
+     * Return the X coordinate of the given View on the screen.
+     *
+     * @return X coordinate of the given View on the screen.
+     */
+    public int getViewX(View view) {
+        int[] point = new int[2];
+        view.getLocationOnScreen(point);
+        return point[0];
+    }
+
+    /**
+     * Return the Y coordinate of the given View on the screen.
+     *
+     * @return Y coordinate of the given View on the screen.
+     */
+    public int getViewY(View view) {
+        int[] point = new int[2];
+        view.getLocationOnScreen(point);
+        return point[1];
+    }
+
+    /**
+     * Set full screen.
+     *
+     * @param activity The activity.
+     */
+    public static void setFullScreen(@NonNull final Activity activity) {
+        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+    }
+
+    /**
+     * Set non full screen.
+     *
+     * @param activity The activity.
+     */
+    public static void setNonFullScreen(@NonNull final Activity activity) {
+        activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+    }
+
+    /**
+     * Toggle full screen.
+     *
+     * @param activity The activity.
+     */
+    public static void toggleFullScreen(@NonNull final Activity activity) {
+        boolean isFullScreen = isFullScreen(activity);
+        Window window = activity.getWindow();
+        if (isFullScreen) {
+            window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+        } else {
+            window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+        }
+    }
+
+    /**
+     * Return whether screen is full.
+     *
+     * @param activity The activity.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isFullScreen(@NonNull final Activity activity) {
+        int fullScreenFlag = WindowManager.LayoutParams.FLAG_FULLSCREEN;
+        return (activity.getWindow().getAttributes().flags & fullScreenFlag) == fullScreenFlag;
+    }
+
+    /**
+     * Set the screen to landscape.
+     *
+     * @param activity The activity.
+     */
+    @SuppressLint("SourceLockedOrientationActivity")
+    public static void setLandscape(@NonNull final Activity activity) {
+        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+    }
+
+    /**
+     * Set the screen to portrait.
+     *
+     * @param activity The activity.
+     */
+    @SuppressLint("SourceLockedOrientationActivity")
+    public static void setPortrait(@NonNull final Activity activity) {
+        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+    }
+
+    /**
+     * Return whether screen is landscape.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLandscape() {
+        return Utils.getApp().getResources().getConfiguration().orientation
+                == Configuration.ORIENTATION_LANDSCAPE;
+    }
+
+    /**
+     * Return whether screen is portrait.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPortrait() {
+        return Utils.getApp().getResources().getConfiguration().orientation
+                == Configuration.ORIENTATION_PORTRAIT;
+    }
+
+    /**
+     * Return the rotation of screen.
+     *
+     * @param activity The activity.
+     * @return the rotation of screen
+     */
+    public static int getScreenRotation(@NonNull final Activity activity) {
+        switch (activity.getWindowManager().getDefaultDisplay().getRotation()) {
+            case Surface.ROTATION_0:
+                return 0;
+            case Surface.ROTATION_90:
+                return 90;
+            case Surface.ROTATION_180:
+                return 180;
+            case Surface.ROTATION_270:
+                return 270;
+            default:
+                return 0;
+        }
+    }
+
+    /**
+     * Return the bitmap of screen.
+     *
+     * @param activity The activity.
+     * @return the bitmap of screen
+     */
+    public static Bitmap screenShot(@NonNull final Activity activity) {
+        return screenShot(activity, false);
+    }
+
+    /**
+     * Return the bitmap of screen.
+     *
+     * @param activity          The activity.
+     * @param isDeleteStatusBar True to delete status bar, false otherwise.
+     * @return the bitmap of screen
+     */
+    public static Bitmap screenShot(@NonNull final Activity activity, boolean isDeleteStatusBar) {
+        View decorView = activity.getWindow().getDecorView();
+        Bitmap bmp = UtilsBridge.view2Bitmap(decorView);
+        DisplayMetrics dm = new DisplayMetrics();
+        activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
+        if (isDeleteStatusBar) {
+            int statusBarHeight = UtilsBridge.getStatusBarHeight();
+            return Bitmap.createBitmap(
+                    bmp,
+                    0,
+                    statusBarHeight,
+                    dm.widthPixels,
+                    dm.heightPixels - statusBarHeight
+            );
+        } else {
+            return Bitmap.createBitmap(bmp, 0, 0, dm.widthPixels, dm.heightPixels);
+        }
+    }
+
+    /**
+     * Return whether screen is locked.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isScreenLock() {
+        KeyguardManager km =
+                (KeyguardManager) Utils.getApp().getSystemService(Context.KEYGUARD_SERVICE);
+        if (km == null) return false;
+        return km.inKeyguardRestrictedInputMode();
+    }
+
+    /**
+     * Set the duration of sleep.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.WRITE_SETTINGS" />}</p>
+     *
+     * @param duration The duration.
+     */
+    @RequiresPermission(WRITE_SETTINGS)
+    public static void setSleepDuration(final int duration) {
+        Settings.System.putInt(
+                Utils.getApp().getContentResolver(),
+                Settings.System.SCREEN_OFF_TIMEOUT,
+                duration
+        );
+    }
+
+    /**
+     * Return the duration of sleep.
+     *
+     * @return the duration of sleep.
+     */
+    public static int getSleepDuration() {
+        try {
+            return Settings.System.getInt(
+                    Utils.getApp().getContentResolver(),
+                    Settings.System.SCREEN_OFF_TIMEOUT
+            );
+        } catch (Settings.SettingNotFoundException e) {
+            e.printStackTrace();
+            return -123;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
new file mode 100644
index 0000000000..17c047822e
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
@@ -0,0 +1,238 @@
+package com.blankj.utilcode.util;
+
+import android.app.ActivityManager;
+import android.app.ActivityManager.RunningServiceInfo;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.Build;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/02
+ *     desc  : utils about service
+ * </pre>
+ */
+public final class ServiceUtils {
+
+    private ServiceUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return all of the services are running.
+     *
+     * @return all of the services are running
+     */
+    public static Set<String> getAllRunningServices() {
+        ActivityManager am = (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+        List<RunningServiceInfo> info = am.getRunningServices(0x7FFFFFFF);
+        Set<String> names = new HashSet<>();
+        if (info == null || info.size() == 0) return null;
+        for (RunningServiceInfo aInfo : info) {
+            names.add(aInfo.service.getClassName());
+        }
+        return names;
+    }
+
+    /**
+     * Start the service.
+     *
+     * @param className The name of class.
+     */
+    public static void startService(@NonNull final String className) {
+        try {
+            startService(Class.forName(className));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Start the service.
+     *
+     * @param cls The service class.
+     */
+    public static void startService(@NonNull final Class<?> cls) {
+        startService(new Intent(Utils.getApp(), cls));
+    }
+
+    /**
+     * Start the service.
+     *
+     * @param intent The intent.
+     */
+    public static void startService(Intent intent) {
+        try {
+            intent.setFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                Utils.getApp().startForegroundService(intent);
+            } else {
+                Utils.getApp().startService(intent);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Stop the service.
+     *
+     * @param className The name of class.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean stopService(@NonNull final String className) {
+        try {
+            return stopService(Class.forName(className));
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Stop the service.
+     *
+     * @param cls The name of class.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean stopService(@NonNull final Class<?> cls) {
+        return stopService(new Intent(Utils.getApp(), cls));
+    }
+
+    /**
+     * Stop the service.
+     *
+     * @param intent The intent.
+     * @return {@code true}: success<br>{@code false}: fail
+     */
+    public static boolean stopService(@NonNull Intent intent) {
+        try {
+            return Utils.getApp().stopService(intent);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Bind the service.
+     *
+     * @param className The name of class.
+     * @param conn      The ServiceConnection object.
+     * @param flags     Operation options for the binding.
+     *                  <ul>
+     *                  <li>0</li>
+     *                  <li>{@link Context#BIND_AUTO_CREATE}</li>
+     *                  <li>{@link Context#BIND_DEBUG_UNBIND}</li>
+     *                  <li>{@link Context#BIND_NOT_FOREGROUND}</li>
+     *                  <li>{@link Context#BIND_ABOVE_CLIENT}</li>
+     *                  <li>{@link Context#BIND_ALLOW_OOM_MANAGEMENT}</li>
+     *                  <li>{@link Context#BIND_WAIVE_PRIORITY}</li>
+     *                  </ul>
+     */
+    public static void bindService(@NonNull final String className,
+                                   @NonNull final ServiceConnection conn,
+                                   final int flags) {
+        try {
+            bindService(Class.forName(className), conn, flags);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Bind the service.
+     *
+     * @param cls   The service class.
+     * @param conn  The ServiceConnection object.
+     * @param flags Operation options for the binding.
+     *              <ul>
+     *              <li>0</li>
+     *              <li>{@link Context#BIND_AUTO_CREATE}</li>
+     *              <li>{@link Context#BIND_DEBUG_UNBIND}</li>
+     *              <li>{@link Context#BIND_NOT_FOREGROUND}</li>
+     *              <li>{@link Context#BIND_ABOVE_CLIENT}</li>
+     *              <li>{@link Context#BIND_ALLOW_OOM_MANAGEMENT}</li>
+     *              <li>{@link Context#BIND_WAIVE_PRIORITY}</li>
+     *              </ul>
+     */
+    public static void bindService(@NonNull final Class<?> cls,
+                                   @NonNull final ServiceConnection conn,
+                                   final int flags) {
+        bindService(new Intent(Utils.getApp(), cls), conn, flags);
+    }
+
+    /**
+     * Bind the service.
+     *
+     * @param intent The intent.
+     * @param conn   The ServiceConnection object.
+     * @param flags  Operation options for the binding.
+     *               <ul>
+     *               <li>0</li>
+     *               <li>{@link Context#BIND_AUTO_CREATE}</li>
+     *               <li>{@link Context#BIND_DEBUG_UNBIND}</li>
+     *               <li>{@link Context#BIND_NOT_FOREGROUND}</li>
+     *               <li>{@link Context#BIND_ABOVE_CLIENT}</li>
+     *               <li>{@link Context#BIND_ALLOW_OOM_MANAGEMENT}</li>
+     *               <li>{@link Context#BIND_WAIVE_PRIORITY}</li>
+     *               </ul>
+     */
+    public static void bindService(@NonNull final Intent intent,
+                                   @NonNull final ServiceConnection conn,
+                                   final int flags) {
+        try {
+            Utils.getApp().bindService(intent, conn, flags);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Unbind the service.
+     *
+     * @param conn The ServiceConnection object.
+     */
+    public static void unbindService(@NonNull final ServiceConnection conn) {
+        Utils.getApp().unbindService(conn);
+    }
+
+    /**
+     * Return whether service is running.
+     *
+     * @param cls The service class.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isServiceRunning(@NonNull final Class<?> cls) {
+        return isServiceRunning(cls.getName());
+    }
+
+    /**
+     * Return whether service is running.
+     *
+     * @param className The name of class.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isServiceRunning(@NonNull final String className) {
+        try {
+            ActivityManager am = (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
+            List<RunningServiceInfo> info = am.getRunningServices(0x7FFFFFFF);
+            if (info == null || info.size() == 0) return false;
+            for (RunningServiceInfo aInfo : info) {
+                if (className.equals(aInfo.service.getClassName())) return true;
+            }
+            return false;
+        } catch (Exception ignore) {
+            return false;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShadowUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShadowUtils.java
new file mode 100644
index 0000000000..29f92afba0
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShadowUtils.java
@@ -0,0 +1,691 @@
+package com.blankj.utilcode.util;
+
+import android.content.res.ColorStateList;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.LinearGradient;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PixelFormat;
+import android.graphics.PorterDuff.Mode;
+import android.graphics.RadialGradient;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.graphics.Region;
+import android.graphics.Shader;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.StateListDrawable;
+import android.util.StateSet;
+import android.view.View;
+
+import androidx.core.graphics.drawable.DrawableCompat;
+import androidx.core.view.ViewCompat;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/13
+ *     desc  : utils about shadow
+ * </pre>
+ */
+public class ShadowUtils {
+
+    private static final int SHADOW_TAG = -16;
+
+    public static void apply(View... views) {
+        if (views == null) return;
+        for (View view : views) {
+            apply(view, new Config());
+        }
+    }
+
+    public static void apply(View view, Config builder) {
+        if (view == null || builder == null) return;
+        Drawable background = view.getBackground();
+        Object tag = view.getTag(SHADOW_TAG);
+        if (tag instanceof Drawable) {
+            ViewCompat.setBackground(view, (Drawable) tag);
+        } else {
+            background = builder.apply(background);
+            ViewCompat.setBackground(view, background);
+            view.setTag(SHADOW_TAG, background);
+        }
+    }
+
+    public static class Config {
+
+        private static final int SHADOW_COLOR_DEFAULT = 0x44000000;
+        private static final int SHADOW_SIZE          = UtilsBridge.dp2px(8);
+
+        private float   mShadowRadius         = -1;
+        private float   mShadowSizeNormal     = -1;
+        private float   mShadowSizePressed    = -1;
+        private float   mShadowMaxSizeNormal  = -1;
+        private float   mShadowMaxSizePressed = -1;
+        private int     mShadowColorNormal    = SHADOW_COLOR_DEFAULT;
+        private int     mShadowColorPressed   = SHADOW_COLOR_DEFAULT;
+        private boolean isCircle              = false;
+
+        public Config() {
+        }
+
+        public Config setShadowRadius(float radius) {
+            this.mShadowRadius = radius;
+            if (isCircle) {
+                throw new IllegalArgumentException("Set circle needn't set radius.");
+            }
+            return this;
+        }
+
+        public Config setCircle() {
+            isCircle = true;
+            if (mShadowRadius != -1) {
+                throw new IllegalArgumentException("Set circle needn't set radius.");
+            }
+            return this;
+        }
+
+        public Config setShadowSize(int size) {
+            return setShadowSize(size, size);
+        }
+
+        public Config setShadowSize(int sizeNormal, int sizePressed) {
+            this.mShadowSizeNormal = sizeNormal;
+            this.mShadowSizePressed = sizePressed;
+            return this;
+        }
+
+        public Config setShadowMaxSize(int maxSize) {
+            return setShadowMaxSize(maxSize, maxSize);
+        }
+
+        public Config setShadowMaxSize(int maxSizeNormal, int maxSizePressed) {
+            this.mShadowMaxSizeNormal = maxSizeNormal;
+            this.mShadowMaxSizePressed = maxSizePressed;
+            return this;
+        }
+
+        public Config setShadowColor(int color) {
+            return setShadowColor(color, color);
+        }
+
+        public Config setShadowColor(int colorNormal, int colorPressed) {
+            this.mShadowColorNormal = colorNormal;
+            this.mShadowColorPressed = colorPressed;
+            return this;
+        }
+
+        Drawable apply(Drawable src) {
+            if (src == null) {
+                src = new ColorDrawable(Color.TRANSPARENT);
+            }
+            StateListDrawable drawable = new StateListDrawable();
+            drawable.addState(
+                    new int[]{android.R.attr.state_pressed},
+                    new ShadowDrawable(src, getShadowRadius(), getShadowSizeNormal(),
+                            getShadowMaxSizeNormal(), mShadowColorPressed, isCircle)
+            );
+            drawable.addState(
+                    StateSet.WILD_CARD,
+                    new ShadowDrawable(src, getShadowRadius(), getShadowSizePressed(),
+                            getShadowMaxSizePressed(), mShadowColorNormal, isCircle)
+            );
+            return drawable;
+        }
+
+        private float getShadowRadius() {
+            if (mShadowRadius < 0) {
+                mShadowRadius = 0;
+            }
+            return mShadowRadius;
+        }
+
+        private float getShadowSizeNormal() {
+            if (mShadowSizeNormal == -1) {
+                mShadowSizeNormal = SHADOW_SIZE;
+            }
+            return mShadowSizeNormal;
+        }
+
+        private float getShadowSizePressed() {
+            if (mShadowSizePressed == -1) {
+                mShadowSizePressed = getShadowSizeNormal();
+            }
+            return mShadowSizePressed;
+        }
+
+        private float getShadowMaxSizeNormal() {
+            if (mShadowMaxSizeNormal == -1) {
+                mShadowMaxSizeNormal = getShadowSizeNormal();
+            }
+            return mShadowMaxSizeNormal;
+        }
+
+        private float getShadowMaxSizePressed() {
+            if (mShadowMaxSizePressed == -1) {
+                mShadowMaxSizePressed = getShadowSizePressed();
+            }
+            return mShadowMaxSizePressed;
+        }
+    }
+
+    public static class ShadowDrawable extends DrawableWrapper {
+        // used to calculate content padding
+        private static final double COS_45 = Math.cos(Math.toRadians(45));
+
+        private float mShadowMultiplier = 1f;
+
+        private float mShadowTopScale    = 1f;
+        private float mShadowHorizScale  = 1f;
+        private float mShadowBottomScale = 1f;
+
+        private Paint mCornerShadowPaint;
+        private Paint mEdgeShadowPaint;
+
+        private RectF mContentBounds;
+
+        private float mCornerRadius;
+
+        private Path mCornerShadowPath;
+
+        // updated value with inset
+        private float mMaxShadowSize;
+        // actual value set by developer
+        private float mRawMaxShadowSize;
+
+        // multiplied value to account for shadow offset
+        private float mShadowSize;
+        // actual value set by developer
+        private float mRawShadowSize;
+
+        private boolean mDirty = true;
+
+        private final int mShadowStartColor;
+        private final int mShadowEndColor;
+
+        private boolean mAddPaddingForCorners = false;
+
+        private float mRotation;
+
+        private boolean isCircle;
+
+        public ShadowDrawable(Drawable content, float radius,
+                              float shadowSize, float maxShadowSize, int shadowColor, boolean isCircle) {
+            super(content);
+            mShadowStartColor = shadowColor;
+            mShadowEndColor = mShadowStartColor & 0x00ffffff;
+            this.isCircle = isCircle;
+            if (isCircle) {
+                mShadowMultiplier = 1;
+                mShadowTopScale = 1;
+                mShadowHorizScale = 1;
+                mShadowBottomScale = 1;
+            }
+
+            mCornerShadowPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
+            mCornerShadowPaint.setStyle(Paint.Style.FILL);
+            mCornerRadius = Math.round(radius);
+            mContentBounds = new RectF();
+            mEdgeShadowPaint = new Paint(mCornerShadowPaint);
+            mEdgeShadowPaint.setAntiAlias(false);
+            setShadowSize(shadowSize, maxShadowSize);
+        }
+
+        /**
+         * Casts the value to an even integer.
+         */
+        private static int toEven(float value) {
+            int i = Math.round(value);
+            return (i % 2 == 1) ? i - 1 : i;
+        }
+
+        public void setAddPaddingForCorners(boolean addPaddingForCorners) {
+            mAddPaddingForCorners = addPaddingForCorners;
+            invalidateSelf();
+        }
+
+        @Override
+        public void setAlpha(int alpha) {
+            super.setAlpha(alpha);
+            mCornerShadowPaint.setAlpha(alpha);
+            mEdgeShadowPaint.setAlpha(alpha);
+        }
+
+        @Override
+        protected void onBoundsChange(Rect bounds) {
+            mDirty = true;
+        }
+
+        void setShadowSize(float shadowSize, float maxShadowSize) {
+            if (shadowSize < 0 || maxShadowSize < 0) {
+                throw new IllegalArgumentException("invalid shadow size");
+            }
+            shadowSize = toEven(shadowSize);
+            maxShadowSize = toEven(maxShadowSize);
+            if (shadowSize > maxShadowSize) {
+                shadowSize = maxShadowSize;
+            }
+            if (mRawShadowSize == shadowSize && mRawMaxShadowSize == maxShadowSize) {
+                return;
+            }
+            mRawShadowSize = shadowSize;
+            mRawMaxShadowSize = maxShadowSize;
+            mShadowSize = Math.round(shadowSize * mShadowMultiplier);
+            mMaxShadowSize = maxShadowSize;
+            mDirty = true;
+            invalidateSelf();
+        }
+
+        @Override
+        public boolean getPadding(Rect padding) {
+            int vOffset = (int) Math.ceil(calculateVerticalPadding(mRawMaxShadowSize, mCornerRadius,
+                    mAddPaddingForCorners));
+            int hOffset = (int) Math.ceil(calculateHorizontalPadding(mRawMaxShadowSize, mCornerRadius,
+                    mAddPaddingForCorners));
+            padding.set(hOffset, vOffset, hOffset, vOffset);
+            return true;
+        }
+
+        private float calculateVerticalPadding(float maxShadowSize, float cornerRadius,
+                                               boolean addPaddingForCorners) {
+            if (addPaddingForCorners) {
+                return (float) (maxShadowSize * mShadowMultiplier + (1 - COS_45) * cornerRadius);
+            } else {
+                return maxShadowSize * mShadowMultiplier;
+            }
+        }
+
+        private static float calculateHorizontalPadding(float maxShadowSize, float cornerRadius,
+                                                        boolean addPaddingForCorners) {
+            if (addPaddingForCorners) {
+                return (float) (maxShadowSize + (1 - COS_45) * cornerRadius);
+            } else {
+                return maxShadowSize;
+            }
+        }
+
+        @Override
+        public int getOpacity() {
+            return PixelFormat.TRANSLUCENT;
+        }
+
+        public void setCornerRadius(float radius) {
+            radius = Math.round(radius);
+            if (mCornerRadius == radius) {
+                return;
+            }
+            mCornerRadius = radius;
+            mDirty = true;
+            invalidateSelf();
+        }
+
+        @Override
+        public void draw(Canvas canvas) {
+            if (mDirty) {
+                buildComponents(getBounds());
+                mDirty = false;
+            }
+            drawShadow(canvas);
+
+            super.draw(canvas);
+        }
+
+        final void setRotation(float rotation) {
+            if (mRotation != rotation) {
+                mRotation = rotation;
+                invalidateSelf();
+            }
+        }
+
+        private void drawShadow(Canvas canvas) {
+            if (isCircle) {
+                int saved = canvas.save();
+                canvas.translate(mContentBounds.centerX(), mContentBounds.centerY());
+                canvas.drawPath(mCornerShadowPath, mCornerShadowPaint);
+                canvas.restoreToCount(saved);
+                return;
+            }
+
+            final int rotateSaved = canvas.save();
+            canvas.rotate(mRotation, mContentBounds.centerX(), mContentBounds.centerY());
+
+            final float edgeShadowTop = -mCornerRadius - mShadowSize;
+            final float shadowOffset = mCornerRadius;
+            final boolean drawHorizontalEdges = mContentBounds.width() - 2 * shadowOffset > 0;
+            final boolean drawVerticalEdges = mContentBounds.height() - 2 * shadowOffset > 0;
+
+            final float shadowOffsetTop = mRawShadowSize - (mRawShadowSize * mShadowTopScale);
+            final float shadowOffsetHorizontal = mRawShadowSize - (mRawShadowSize * mShadowHorizScale);
+            final float shadowOffsetBottom = mRawShadowSize - (mRawShadowSize * mShadowBottomScale);
+
+            final float shadowScaleHorizontal = shadowOffset == 0 ? 1 : shadowOffset / (shadowOffset + shadowOffsetHorizontal);
+            final float shadowScaleTop = shadowOffset == 0 ? 1 : shadowOffset / (shadowOffset + shadowOffsetTop);
+            final float shadowScaleBottom = shadowOffset == 0 ? 1 : shadowOffset / (shadowOffset + shadowOffsetBottom);
+
+            // LT
+            int saved = canvas.save();
+            canvas.translate(mContentBounds.left + shadowOffset, mContentBounds.top + shadowOffset);
+            canvas.scale(shadowScaleHorizontal, shadowScaleTop);
+            canvas.drawPath(mCornerShadowPath, mCornerShadowPaint);
+            if (drawHorizontalEdges) {
+                // TE
+                canvas.scale(1f / shadowScaleHorizontal, 1f);
+                canvas.drawRect(0, edgeShadowTop,
+                        mContentBounds.width() - 2 * shadowOffset, -mCornerRadius,
+                        mEdgeShadowPaint);
+            }
+            canvas.restoreToCount(saved);
+            // RB
+            saved = canvas.save();
+            canvas.translate(mContentBounds.right - shadowOffset, mContentBounds.bottom - shadowOffset);
+            canvas.scale(shadowScaleHorizontal, shadowScaleBottom);
+            canvas.rotate(180f);
+            canvas.drawPath(mCornerShadowPath, mCornerShadowPaint);
+            if (drawHorizontalEdges) {
+                // BE
+                canvas.scale(1f / shadowScaleHorizontal, 1f);
+                canvas.drawRect(0, edgeShadowTop,
+                        mContentBounds.width() - 2 * shadowOffset, -mCornerRadius,
+                        mEdgeShadowPaint);
+            }
+            canvas.restoreToCount(saved);
+            // LB
+            saved = canvas.save();
+            canvas.translate(mContentBounds.left + shadowOffset, mContentBounds.bottom - shadowOffset);
+            canvas.scale(shadowScaleHorizontal, shadowScaleBottom);
+            canvas.rotate(270f);
+            canvas.drawPath(mCornerShadowPath, mCornerShadowPaint);
+            if (drawVerticalEdges) {
+                // LE
+                canvas.scale(1f / shadowScaleBottom, 1f);
+                canvas.drawRect(0, edgeShadowTop,
+                        mContentBounds.height() - 2 * shadowOffset, -mCornerRadius, mEdgeShadowPaint);
+            }
+            canvas.restoreToCount(saved);
+            // RT
+            saved = canvas.save();
+            canvas.translate(mContentBounds.right - shadowOffset, mContentBounds.top + shadowOffset);
+            canvas.scale(shadowScaleHorizontal, shadowScaleTop);
+            canvas.rotate(90f);
+            canvas.drawPath(mCornerShadowPath, mCornerShadowPaint);
+            if (drawVerticalEdges) {
+                // RE
+                canvas.scale(1f / shadowScaleTop, 1f);
+                canvas.drawRect(0, edgeShadowTop,
+                        mContentBounds.height() - 2 * shadowOffset, -mCornerRadius, mEdgeShadowPaint);
+            }
+            canvas.restoreToCount(saved);
+
+            canvas.restoreToCount(rotateSaved);
+        }
+
+        private void buildShadowCorners() {
+            if (isCircle) {
+                float size = mContentBounds.width() / 2 - 1f;
+                RectF innerBounds = new RectF(-size, -size, size, size);
+                RectF outerBounds = new RectF(innerBounds);
+                outerBounds.inset(-mShadowSize, -mShadowSize);
+
+                if (mCornerShadowPath == null) {
+                    mCornerShadowPath = new Path();
+                } else {
+                    mCornerShadowPath.reset();
+                }
+                mCornerShadowPath.setFillType(Path.FillType.EVEN_ODD);
+                mCornerShadowPath.moveTo(-size, 0);
+                mCornerShadowPath.rLineTo(-mShadowSize, 0);
+                // outer arc
+                mCornerShadowPath.arcTo(outerBounds, 180f, 180f, false);
+                mCornerShadowPath.arcTo(outerBounds, 0f, 180f, false);
+                // inner arc
+                mCornerShadowPath.arcTo(innerBounds, 180f, 180f, false);
+                mCornerShadowPath.arcTo(innerBounds, 0f, 180f, false);
+                mCornerShadowPath.close();
+
+                float shadowRadius = -outerBounds.top;
+                if (shadowRadius > 0f) {
+                    float startRatio = size / shadowRadius;
+                    mCornerShadowPaint.setShader(new RadialGradient(0, 0, shadowRadius,
+                            new int[]{0, mShadowStartColor, mShadowEndColor}, new float[]{0.0F, startRatio, 1.0F},
+                            Shader.TileMode.CLAMP));
+                }
+                return;
+            }
+
+            RectF innerBounds = new RectF(-mCornerRadius, -mCornerRadius, mCornerRadius, mCornerRadius);
+            RectF outerBounds = new RectF(innerBounds);
+            outerBounds.inset(-mShadowSize, -mShadowSize);
+
+            if (mCornerShadowPath == null) {
+                mCornerShadowPath = new Path();
+            } else {
+                mCornerShadowPath.reset();
+            }
+            mCornerShadowPath.setFillType(Path.FillType.EVEN_ODD);
+            mCornerShadowPath.moveTo(-mCornerRadius, 0);
+            mCornerShadowPath.rLineTo(-mShadowSize, 0);
+            // outer arc
+            mCornerShadowPath.arcTo(outerBounds, 180f, 90f, false);
+            // inner arc
+            mCornerShadowPath.arcTo(innerBounds, 270f, -90f, false);
+            mCornerShadowPath.close();
+
+            float shadowRadius = -outerBounds.top;
+            if (shadowRadius > 0f) {
+                float startRatio = mCornerRadius / shadowRadius;
+                mCornerShadowPaint.setShader(new RadialGradient(0, 0, shadowRadius,
+                        new int[]{0, mShadowStartColor, mShadowEndColor}, new float[]{0F, startRatio, 1F},
+                        Shader.TileMode.CLAMP));
+            }
+
+            // we offset the content shadowSize/2 pixels up to make it more realistic.
+            // this is why edge shadow shader has some extra space
+            // When drawing bottom edge shadow, we use that extra space.
+            mEdgeShadowPaint.setShader(new LinearGradient(0, innerBounds.top, 0, outerBounds.top,
+                    mShadowStartColor, mShadowEndColor, Shader.TileMode.CLAMP));
+            mEdgeShadowPaint.setAntiAlias(false);
+        }
+
+        private void buildComponents(Rect bounds) {
+            // Card is offset mShadowMultiplier * maxShadowSize to account for the shadow shift.
+            // We could have different top-bottom offsets to avoid extra gap above but in that case
+            // center aligning Views inside the CardView would be problematic.
+            if (isCircle) {
+                mCornerRadius = bounds.width() / 2;
+            }
+            final float verticalOffset = mRawMaxShadowSize * mShadowMultiplier;
+            mContentBounds.set(bounds.left + mRawMaxShadowSize, bounds.top + verticalOffset,
+                    bounds.right - mRawMaxShadowSize, bounds.bottom - verticalOffset);
+
+            getWrappedDrawable().setBounds((int) mContentBounds.left, (int) mContentBounds.top,
+                    (int) mContentBounds.right, (int) mContentBounds.bottom);
+            buildShadowCorners();
+        }
+
+        public float getCornerRadius() {
+            return mCornerRadius;
+        }
+
+        public void setShadowSize(float size) {
+            setShadowSize(size, mRawMaxShadowSize);
+        }
+
+        public void setMaxShadowSize(float size) {
+            setShadowSize(mRawShadowSize, size);
+        }
+
+        public float getShadowSize() {
+            return mRawShadowSize;
+        }
+
+        public float getMaxShadowSize() {
+            return mRawMaxShadowSize;
+        }
+
+        public float getMinWidth() {
+            final float content = 2 *
+                    Math.max(mRawMaxShadowSize, mCornerRadius + mRawMaxShadowSize / 2);
+            return content + mRawMaxShadowSize * 2;
+        }
+
+        public float getMinHeight() {
+            final float content = 2 * Math.max(mRawMaxShadowSize, mCornerRadius
+                    + mRawMaxShadowSize * mShadowMultiplier / 2);
+            return content + (mRawMaxShadowSize * mShadowMultiplier) * 2;
+        }
+    }
+
+    static class DrawableWrapper extends Drawable implements Drawable.Callback {
+        private Drawable mDrawable;
+
+        public DrawableWrapper(Drawable drawable) {
+            this.setWrappedDrawable(drawable);
+        }
+
+        public void draw(Canvas canvas) {
+            this.mDrawable.draw(canvas);
+        }
+
+        protected void onBoundsChange(Rect bounds) {
+            this.mDrawable.setBounds(bounds);
+        }
+
+        public void setChangingConfigurations(int configs) {
+            this.mDrawable.setChangingConfigurations(configs);
+        }
+
+        public int getChangingConfigurations() {
+            return this.mDrawable.getChangingConfigurations();
+        }
+
+        public void setDither(boolean dither) {
+            this.mDrawable.setDither(dither);
+        }
+
+        public void setFilterBitmap(boolean filter) {
+            this.mDrawable.setFilterBitmap(filter);
+        }
+
+        public void setAlpha(int alpha) {
+            this.mDrawable.setAlpha(alpha);
+        }
+
+        public void setColorFilter(ColorFilter cf) {
+            this.mDrawable.setColorFilter(cf);
+        }
+
+        public boolean isStateful() {
+            return this.mDrawable.isStateful();
+        }
+
+        public boolean setState(int[] stateSet) {
+            return this.mDrawable.setState(stateSet);
+        }
+
+        public int[] getState() {
+            return this.mDrawable.getState();
+        }
+
+        public void jumpToCurrentState() {
+            DrawableCompat.jumpToCurrentState(this.mDrawable);
+        }
+
+        public Drawable getCurrent() {
+            return this.mDrawable.getCurrent();
+        }
+
+        public boolean setVisible(boolean visible, boolean restart) {
+            return super.setVisible(visible, restart) || this.mDrawable.setVisible(visible, restart);
+        }
+
+        public int getOpacity() {
+            return this.mDrawable.getOpacity();
+        }
+
+        public Region getTransparentRegion() {
+            return this.mDrawable.getTransparentRegion();
+        }
+
+        public int getIntrinsicWidth() {
+            return this.mDrawable.getIntrinsicWidth();
+        }
+
+        public int getIntrinsicHeight() {
+            return this.mDrawable.getIntrinsicHeight();
+        }
+
+        public int getMinimumWidth() {
+            return this.mDrawable.getMinimumWidth();
+        }
+
+        public int getMinimumHeight() {
+            return this.mDrawable.getMinimumHeight();
+        }
+
+        public boolean getPadding(Rect padding) {
+            return this.mDrawable.getPadding(padding);
+        }
+
+        public void invalidateDrawable(Drawable who) {
+            this.invalidateSelf();
+        }
+
+        public void scheduleDrawable(Drawable who, Runnable what, long when) {
+            this.scheduleSelf(what, when);
+        }
+
+        public void unscheduleDrawable(Drawable who, Runnable what) {
+            this.unscheduleSelf(what);
+        }
+
+        protected boolean onLevelChange(int level) {
+            return this.mDrawable.setLevel(level);
+        }
+
+        public void setAutoMirrored(boolean mirrored) {
+            DrawableCompat.setAutoMirrored(this.mDrawable, mirrored);
+        }
+
+        public boolean isAutoMirrored() {
+            return DrawableCompat.isAutoMirrored(this.mDrawable);
+        }
+
+        public void setTint(int tint) {
+            DrawableCompat.setTint(this.mDrawable, tint);
+        }
+
+        public void setTintList(ColorStateList tint) {
+            DrawableCompat.setTintList(this.mDrawable, tint);
+        }
+
+        public void setTintMode(Mode tintMode) {
+            DrawableCompat.setTintMode(this.mDrawable, tintMode);
+        }
+
+        public void setHotspot(float x, float y) {
+            DrawableCompat.setHotspot(this.mDrawable, x, y);
+        }
+
+        public void setHotspotBounds(int left, int top, int right, int bottom) {
+            DrawableCompat.setHotspotBounds(this.mDrawable, left, top, right, bottom);
+        }
+
+        public Drawable getWrappedDrawable() {
+            return this.mDrawable;
+        }
+
+        public void setWrappedDrawable(Drawable drawable) {
+            if (this.mDrawable != null) {
+                this.mDrawable.setCallback((Callback) null);
+            }
+
+            this.mDrawable = drawable;
+            if (drawable != null) {
+                drawable.setCallback(this);
+            }
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
new file mode 100644
index 0000000000..9e69865405
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
@@ -0,0 +1,386 @@
+package com.blankj.utilcode.util;
+
+import androidx.annotation.NonNull;
+
+import java.io.BufferedReader;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/07
+ *     desc  : utils about shell
+ * </pre>
+ */
+public final class ShellUtils {
+
+    private static final String LINE_SEP = System.getProperty("line.separator");
+
+    private ShellUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Execute the command asynchronously.
+     *
+     * @param command  The command.
+     * @param isRooted True to use root, false otherwise.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    public static Utils.Task<CommandResult> execCmdAsync(final String command,
+                                                         final boolean isRooted,
+                                                         final Utils.Consumer<CommandResult> consumer) {
+        return execCmdAsync(new String[]{command}, isRooted, true, consumer);
+    }
+
+    /**
+     * Execute the command asynchronously.
+     *
+     * @param commands The commands.
+     * @param isRooted True to use root, false otherwise.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    public static Utils.Task<CommandResult> execCmdAsync(final List<String> commands,
+                                                         final boolean isRooted,
+                                                         final Utils.Consumer<CommandResult> consumer) {
+        return execCmdAsync(commands == null ? null : commands.toArray(new String[]{}), isRooted, true, consumer);
+    }
+
+    /**
+     * Execute the command asynchronously.
+     *
+     * @param commands The commands.
+     * @param isRooted True to use root, false otherwise.
+     * @param consumer The consumer.
+     * @return the task
+     */
+    public static Utils.Task<CommandResult> execCmdAsync(final String[] commands,
+                                                         final boolean isRooted,
+                                                         final Utils.Consumer<CommandResult> consumer) {
+        return execCmdAsync(commands, isRooted, true, consumer);
+    }
+
+    /**
+     * Execute the command asynchronously.
+     *
+     * @param command         The command.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @param consumer        The consumer.
+     * @return the task
+     */
+    public static Utils.Task<CommandResult> execCmdAsync(final String command,
+                                                         final boolean isRooted,
+                                                         final boolean isNeedResultMsg,
+                                                         final Utils.Consumer<CommandResult> consumer) {
+        return execCmdAsync(new String[]{command}, isRooted, isNeedResultMsg, consumer);
+    }
+
+    /**
+     * Execute the command asynchronously.
+     *
+     * @param commands        The commands.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @param consumer        The consumer.
+     * @return the task
+     */
+    public static Utils.Task<CommandResult> execCmdAsync(final List<String> commands,
+                                                         final boolean isRooted,
+                                                         final boolean isNeedResultMsg,
+                                                         final Utils.Consumer<CommandResult> consumer) {
+        return execCmdAsync(commands == null ? null : commands.toArray(new String[]{}),
+                isRooted,
+                isNeedResultMsg,
+                consumer);
+    }
+
+    /**
+     * Execute the command asynchronously.
+     *
+     * @param commands        The commands.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @param consumer        The consumer.
+     * @return the task
+     */
+    public static Utils.Task<CommandResult> execCmdAsync(final String[] commands,
+                                                         final boolean isRooted,
+                                                         final boolean isNeedResultMsg,
+                                                         @NonNull final Utils.Consumer<CommandResult> consumer) {
+        return UtilsBridge.doAsync(new Utils.Task<CommandResult>(consumer) {
+            @Override
+            public CommandResult doInBackground() {
+                return execCmd(commands, isRooted, isNeedResultMsg);
+            }
+        });
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param command  The command.
+     * @param isRooted True to use root, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String command, final boolean isRooted) {
+        return execCmd(new String[]{command}, isRooted, true);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param command  The command.
+     * @param envp     The environment variable settings.
+     * @param isRooted True to use root, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String command, final List<String> envp, final boolean isRooted) {
+        return execCmd(new String[]{command},
+                envp == null ? null : envp.toArray(new String[]{}),
+                isRooted,
+                true);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param commands The commands.
+     * @param isRooted True to use root, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final List<String> commands, final boolean isRooted) {
+        return execCmd(commands == null ? null : commands.toArray(new String[]{}), isRooted, true);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param commands The commands.
+     * @param envp     The environment variable settings.
+     * @param isRooted True to use root, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final List<String> commands,
+                                        final List<String> envp,
+                                        final boolean isRooted) {
+        return execCmd(commands == null ? null : commands.toArray(new String[]{}),
+                envp == null ? null : envp.toArray(new String[]{}),
+                isRooted,
+                true);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param commands The commands.
+     * @param isRooted True to use root, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String[] commands, final boolean isRooted) {
+        return execCmd(commands, isRooted, true);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param command         The command.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String command,
+                                        final boolean isRooted,
+                                        final boolean isNeedResultMsg) {
+        return execCmd(new String[]{command}, isRooted, isNeedResultMsg);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param command         The command.
+     * @param envp            The environment variable settings.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String command,
+                                        final List<String> envp,
+                                        final boolean isRooted,
+                                        final boolean isNeedResultMsg) {
+        return execCmd(new String[]{command}, envp == null ? null : envp.toArray(new String[]{}),
+                isRooted,
+                isNeedResultMsg);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param command         The command.
+     * @param envp            The environment variable settings array.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String command,
+                                        final String[] envp,
+                                        final boolean isRooted,
+                                        final boolean isNeedResultMsg) {
+        return execCmd(new String[]{command}, envp, isRooted, isNeedResultMsg);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param commands        The commands.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final List<String> commands,
+                                        final boolean isRooted,
+                                        final boolean isNeedResultMsg) {
+        return execCmd(commands == null ? null : commands.toArray(new String[]{}),
+                isRooted,
+                isNeedResultMsg);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param commands        The commands.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String[] commands,
+                                        final boolean isRooted,
+                                        final boolean isNeedResultMsg) {
+        return execCmd(commands, null, isRooted, isNeedResultMsg);
+    }
+
+    /**
+     * Execute the command.
+     *
+     * @param commands        The commands.
+     * @param envp            Array of strings, each element of which
+     *                        has environment variable settings in the format
+     *                        <i>name</i>=<i>value</i>, or
+     *                        <tt>null</tt> if the subprocess should inherit
+     *                        the environment of the current process.
+     * @param isRooted        True to use root, false otherwise.
+     * @param isNeedResultMsg True to return the message of result, false otherwise.
+     * @return the single {@link CommandResult} instance
+     */
+    public static CommandResult execCmd(final String[] commands,
+                                        final String[] envp,
+                                        final boolean isRooted,
+                                        final boolean isNeedResultMsg) {
+        int result = -1;
+        if (commands == null || commands.length == 0) {
+            return new CommandResult(result, "", "");
+        }
+        Process process = null;
+        BufferedReader successResult = null;
+        BufferedReader errorResult = null;
+        StringBuilder successMsg = null;
+        StringBuilder errorMsg = null;
+        DataOutputStream os = null;
+        try {
+            process = Runtime.getRuntime().exec(isRooted ? "su" : "sh", envp, null);
+            os = new DataOutputStream(process.getOutputStream());
+            for (String command : commands) {
+                if (command == null) continue;
+                os.write(command.getBytes());
+                os.writeBytes(LINE_SEP);
+                os.flush();
+            }
+            os.writeBytes("exit" + LINE_SEP);
+            os.flush();
+            result = process.waitFor();
+            if (isNeedResultMsg) {
+                successMsg = new StringBuilder();
+                errorMsg = new StringBuilder();
+                successResult = new BufferedReader(
+                        new InputStreamReader(process.getInputStream(), "UTF-8")
+                );
+                errorResult = new BufferedReader(
+                        new InputStreamReader(process.getErrorStream(), "UTF-8")
+                );
+                String line;
+                if ((line = successResult.readLine()) != null) {
+                    successMsg.append(line);
+                    while ((line = successResult.readLine()) != null) {
+                        successMsg.append(LINE_SEP).append(line);
+                    }
+                }
+                if ((line = errorResult.readLine()) != null) {
+                    errorMsg.append(line);
+                    while ((line = errorResult.readLine()) != null) {
+                        errorMsg.append(LINE_SEP).append(line);
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                if (os != null) {
+                    os.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            try {
+                if (successResult != null) {
+                    successResult.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            try {
+                if (errorResult != null) {
+                    errorResult.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            if (process != null) {
+                process.destroy();
+            }
+        }
+        return new CommandResult(
+                result,
+                successMsg == null ? "" : successMsg.toString(),
+                errorMsg == null ? "" : errorMsg.toString()
+        );
+    }
+
+    /**
+     * The result of command.
+     */
+    public static class CommandResult {
+        public int    result;
+        public String successMsg;
+        public String errorMsg;
+
+        public CommandResult(final int result, final String successMsg, final String errorMsg) {
+            this.result = result;
+            this.successMsg = successMsg;
+            this.errorMsg = errorMsg;
+        }
+
+        @Override
+        public String toString() {
+            return "result: " + result + "\n" +
+                    "successMsg: " + successMsg + "\n" +
+                    "errorMsg: " + errorMsg;
+        }
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SizeUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
similarity index 95%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/SizeUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
index 4a496ca9bd..572bf803c0 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SizeUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
@@ -75,7 +75,7 @@ public static int px2sp(final float pxValue) {
      * metrics depending on its unit.
      */
     public static float applyDimension(final float value, final int unit) {
-        DisplayMetrics metrics = Utils.getApp().getResources().getDisplayMetrics();
+        DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();
         switch (unit) {
             case TypedValue.COMPLEX_UNIT_PX:
                 return value;
@@ -97,7 +97,7 @@ public static float applyDimension(final float value, final int unit) {
      * Force get the size of view.
      * <p>e.g.</p>
      * <pre>
-     * SizeUtils.forceGetViewSize(view, new SizeUtils.onGetSizeListener() {
+     * SizeUtils.forceGetViewSize(view, new SizeUtils.OnGetSizeListener() {
      *     Override
      *     public void onGetSize(final View view) {
      *         view.getWidth();
@@ -108,7 +108,7 @@ public static float applyDimension(final float value, final int unit) {
      * @param view     The view.
      * @param listener The get size listener.
      */
-    public static void forceGetViewSize(final View view, final onGetSizeListener listener) {
+    public static void forceGetViewSize(final View view, final OnGetSizeListener listener) {
         view.post(new Runnable() {
             @Override
             public void run() {
@@ -169,7 +169,7 @@ public static int[] measureView(final View view) {
     // interface
     ///////////////////////////////////////////////////////////////////////////
 
-    public interface onGetSizeListener {
+    public interface OnGetSizeListener {
         void onGetSize(View view);
     }
 }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
new file mode 100644
index 0000000000..f0f825f115
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
@@ -0,0 +1,397 @@
+package com.blankj.utilcode.util;
+
+import android.os.Build;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.style.ForegroundColorSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+import android.widget.FrameLayout;
+
+import com.google.android.material.snackbar.Snackbar;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
+
+import androidx.annotation.ColorInt;
+import androidx.annotation.DrawableRes;
+import androidx.annotation.IntDef;
+import androidx.annotation.IntRange;
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/10/16
+ *     desc  : utils about snackbar
+ * </pre>
+ */
+public final class SnackbarUtils {
+
+    public static final int LENGTH_INDEFINITE = -2;
+    public static final int LENGTH_SHORT      = -1;
+    public static final int LENGTH_LONG       = 0;
+
+    @IntDef({LENGTH_INDEFINITE, LENGTH_SHORT, LENGTH_LONG})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Duration {
+    }
+
+    private static final int COLOR_DEFAULT = 0xFEFFFFFF;
+    private static final int COLOR_SUCCESS = 0xFF2BB600;
+    private static final int COLOR_WARNING = 0xFFFFC100;
+    private static final int COLOR_ERROR   = 0xFFFF0000;
+    private static final int COLOR_MESSAGE = 0xFFFFFFFF;
+
+    private static WeakReference<Snackbar> sWeakSnackbar;
+
+    private View                 view;
+    private CharSequence         message;
+    private int                  messageColor;
+    private int                  bgColor;
+    private int                  bgResource;
+    private int                  duration;
+    private CharSequence         actionText;
+    private int                  actionTextColor;
+    private View.OnClickListener actionListener;
+    private int                  bottomMargin;
+
+    private SnackbarUtils(final View parent) {
+        setDefault();
+        this.view = parent;
+    }
+
+    private void setDefault() {
+        message = "";
+        messageColor = COLOR_DEFAULT;
+        bgColor = COLOR_DEFAULT;
+        bgResource = -1;
+        duration = LENGTH_SHORT;
+        actionText = "";
+        actionTextColor = COLOR_DEFAULT;
+        bottomMargin = 0;
+    }
+
+    /**
+     * Set the view to find a parent from.
+     *
+     * @param view The view to find a parent from.
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public static SnackbarUtils with(@NonNull final View view) {
+        return new SnackbarUtils(view);
+    }
+
+    /**
+     * Set the message.
+     *
+     * @param msg The message.
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public SnackbarUtils setMessage(@NonNull final CharSequence msg) {
+        this.message = msg;
+        return this;
+    }
+
+    /**
+     * Set the color of message.
+     *
+     * @param color The color of message.
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public SnackbarUtils setMessageColor(@ColorInt final int color) {
+        this.messageColor = color;
+        return this;
+    }
+
+    /**
+     * Set the color of background.
+     *
+     * @param color The color of background.
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public SnackbarUtils setBgColor(@ColorInt final int color) {
+        this.bgColor = color;
+        return this;
+    }
+
+    /**
+     * Set the resource of background.
+     *
+     * @param bgResource The resource of background.
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public SnackbarUtils setBgResource(@DrawableRes final int bgResource) {
+        this.bgResource = bgResource;
+        return this;
+    }
+
+    /**
+     * Set the duration.
+     *
+     * @param duration The duration.
+     *                 <ul>
+     *                 <li>{@link Duration#LENGTH_INDEFINITE}</li>
+     *                 <li>{@link Duration#LENGTH_SHORT     }</li>
+     *                 <li>{@link Duration#LENGTH_LONG      }</li>
+     *                 </ul>
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public SnackbarUtils setDuration(@Duration final int duration) {
+        this.duration = duration;
+        return this;
+    }
+
+    /**
+     * Set the action.
+     *
+     * @param text     The text.
+     * @param listener The click listener.
+     * @return the single {@link SnackbarUtils} instance
+     */
+    public SnackbarUtils setAction(@NonNull final CharSequence text,
+                                   @NonNull final View.OnClickListener listener) {
+        return setAction(text, COLOR_DEFAULT, listener);
+    }
+
+    /**
+     * Set the action.
+     *
+     * @param text     The text.
+     * @param color    The color of text.
+     * @param listener The click listener.
+     * @return the single {@link SnackbarUtils} instance
+     */
+
+    public SnackbarUtils setAction(@NonNull final CharSequence text,
+                                   @ColorInt final int color,
+                                   @NonNull final View.OnClickListener listener) {
+        this.actionText = text;
+        this.actionTextColor = color;
+        this.actionListener = listener;
+        return this;
+    }
+
+    /**
+     * Set the bottom margin.
+     *
+     * @param bottomMargin The size of bottom margin, in pixel.
+     */
+    public SnackbarUtils setBottomMargin(@IntRange(from = 1) final int bottomMargin) {
+        this.bottomMargin = bottomMargin;
+        return this;
+    }
+
+    /**
+     * Show the snackbar.
+     */
+    public Snackbar show() {
+        return show(false);
+    }
+
+    /**
+     * Show the snackbar.
+     *
+     * @param isShowTop True to show the snack bar on the top, false otherwise.
+     */
+    public Snackbar show(boolean isShowTop) {
+        View view = this.view;
+        if (view == null) return null;
+        if (isShowTop) {
+            ViewGroup suitableParent = findSuitableParentCopyFromSnackbar(view);
+            View topSnackBarContainer = suitableParent.findViewWithTag("topSnackBarCoordinatorLayout");
+            if (topSnackBarContainer == null) {
+                CoordinatorLayout topSnackBarCoordinatorLayout = new CoordinatorLayout(view.getContext());
+                topSnackBarCoordinatorLayout.setTag("topSnackBarCoordinatorLayout");
+                topSnackBarCoordinatorLayout.setRotation(180);
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                    // bring to front
+                    topSnackBarCoordinatorLayout.setElevation(100);
+                }
+                suitableParent.addView(topSnackBarCoordinatorLayout, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
+                topSnackBarContainer = topSnackBarCoordinatorLayout;
+            }
+            view = topSnackBarContainer;
+        }
+        if (messageColor != COLOR_DEFAULT) {
+            SpannableString spannableString = new SpannableString(message);
+            ForegroundColorSpan colorSpan = new ForegroundColorSpan(messageColor);
+            spannableString.setSpan(
+                    colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
+            );
+            sWeakSnackbar = new WeakReference<>(Snackbar.make(view, spannableString, duration));
+        } else {
+            sWeakSnackbar = new WeakReference<>(Snackbar.make(view, message, duration));
+        }
+        final Snackbar snackbar = sWeakSnackbar.get();
+        final Snackbar.SnackbarLayout snackbarView = (Snackbar.SnackbarLayout) snackbar.getView();
+        if (isShowTop) {
+            for (int i = 0; i < snackbarView.getChildCount(); i++) {
+                View child = snackbarView.getChildAt(i);
+                child.setRotation(180);
+            }
+        }
+        if (bgResource != -1) {
+            snackbarView.setBackgroundResource(bgResource);
+        } else if (bgColor != COLOR_DEFAULT) {
+            snackbarView.setBackgroundColor(bgColor);
+        }
+        if (bottomMargin != 0) {
+            ViewGroup.MarginLayoutParams params =
+                    (ViewGroup.MarginLayoutParams) snackbarView.getLayoutParams();
+            params.bottomMargin = bottomMargin;
+        }
+        if (actionText.length() > 0 && actionListener != null) {
+            if (actionTextColor != COLOR_DEFAULT) {
+                snackbar.setActionTextColor(actionTextColor);
+            }
+            snackbar.setAction(actionText, actionListener);
+        }
+        snackbar.show();
+        return snackbar;
+    }
+
+    /**
+     * Show the snackbar with success style.
+     */
+    public void showSuccess() {
+        showSuccess(false);
+    }
+
+    /**
+     * Show the snackbar with success style.
+     *
+     * @param isShowTop True to show the snack bar on the top, false otherwise.
+     */
+    public void showSuccess(boolean isShowTop) {
+        bgColor = COLOR_SUCCESS;
+        messageColor = COLOR_MESSAGE;
+        actionTextColor = COLOR_MESSAGE;
+        show(isShowTop);
+    }
+
+    /**
+     * Show the snackbar with warning style.
+     */
+    public void showWarning() {
+        showWarning(false);
+    }
+
+    /**
+     * Show the snackbar with warning style.
+     *
+     * @param isShowTop True to show the snackbar on the top, false otherwise.
+     */
+    public void showWarning(boolean isShowTop) {
+        bgColor = COLOR_WARNING;
+        messageColor = COLOR_MESSAGE;
+        actionTextColor = COLOR_MESSAGE;
+        show(isShowTop);
+    }
+
+    /**
+     * Show the snackbar with error style.
+     */
+    public void showError() {
+        showError(false);
+    }
+
+    /**
+     * Show the snackbar with error style.
+     *
+     * @param isShowTop True to show the snackbar on the top, false otherwise.
+     */
+    public void showError(boolean isShowTop) {
+        bgColor = COLOR_ERROR;
+        messageColor = COLOR_MESSAGE;
+        actionTextColor = COLOR_MESSAGE;
+        show(isShowTop);
+    }
+
+    /**
+     * Dismiss the snackbar.
+     */
+    public static void dismiss() {
+        if (sWeakSnackbar != null && sWeakSnackbar.get() != null) {
+            sWeakSnackbar.get().dismiss();
+            sWeakSnackbar = null;
+        }
+    }
+
+    /**
+     * Return the view of snackbar.
+     *
+     * @return the view of snackbar
+     */
+    public static View getView() {
+        Snackbar snackbar = sWeakSnackbar.get();
+        if (snackbar == null) return null;
+        return snackbar.getView();
+    }
+
+    /**
+     * Add view to the snackbar.
+     * <p>Call it after {@link #show()}</p>
+     *
+     * @param layoutId The id of layout.
+     * @param params   The params.
+     */
+    public static void addView(@LayoutRes final int layoutId,
+                               @NonNull final ViewGroup.LayoutParams params) {
+        final View view = getView();
+        if (view != null) {
+            view.setPadding(0, 0, 0, 0);
+            Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
+            View child = LayoutInflater.from(view.getContext()).inflate(layoutId, null);
+            layout.addView(child, -1, params);
+        }
+    }
+
+    /**
+     * Add view to the snackbar.
+     * <p>Call it after {@link #show()}</p>
+     *
+     * @param child  The child view.
+     * @param params The params.
+     */
+    public static void addView(@NonNull final View child,
+                               @NonNull final ViewGroup.LayoutParams params) {
+        final View view = getView();
+        if (view != null) {
+            view.setPadding(0, 0, 0, 0);
+            Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
+            layout.addView(child, params);
+        }
+    }
+
+    private static ViewGroup findSuitableParentCopyFromSnackbar(View view) {
+        ViewGroup fallback = null;
+
+        do {
+            if (view instanceof CoordinatorLayout) {
+                return (ViewGroup) view;
+            }
+
+            if (view instanceof FrameLayout) {
+                if (view.getId() == android.R.id.content) {
+                    return (ViewGroup) view;
+                }
+
+                fallback = (ViewGroup) view;
+            }
+
+            if (view != null) {
+                ViewParent parent = view.getParent();
+                view = parent instanceof View ? (View) parent : null;
+            }
+        } while (view != null);
+
+        return fallback;
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SpanUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
similarity index 92%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/SpanUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
index 70b514f5b4..a495972278 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SpanUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
@@ -1,6 +1,7 @@
 package com.blankj.utilcode.util;
 
 import android.annotation.SuppressLint;
+import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.BlurMaskFilter;
@@ -14,19 +15,12 @@
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
-import android.support.annotation.ColorInt;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.FloatRange;
-import android.support.annotation.IntDef;
-import android.support.annotation.IntRange;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.content.ContextCompat;
 import android.text.Layout;
 import android.text.Layout.Alignment;
 import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.TextPaint;
+import android.text.method.LinkMovementMethod;
 import android.text.style.AbsoluteSizeSpan;
 import android.text.style.AlignmentSpan;
 import android.text.style.BackgroundColorSpan;
@@ -48,12 +42,24 @@
 import android.text.style.UnderlineSpan;
 import android.text.style.UpdateAppearance;
 import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
 
 import java.io.InputStream;
+import java.io.Serializable;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.ref.WeakReference;
 
+import androidx.annotation.ColorInt;
+import androidx.annotation.DrawableRes;
+import androidx.annotation.FloatRange;
+import androidx.annotation.IntDef;
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+
 import static android.graphics.BlurMaskFilter.Blur;
 
 /**
@@ -80,6 +86,11 @@ public final class SpanUtils {
 
     private static final String LINE_SEPARATOR = System.getProperty("line.separator");
 
+    public static SpanUtils with(final TextView textView) {
+        return new SpanUtils(textView);
+    }
+
+    private TextView      mTextView;
     private CharSequence  mText;
     private int           flag;
     private int           foregroundColor;
@@ -95,7 +106,6 @@ public final class SpanUtils {
     private int           bulletRadius;
     private int           bulletGapWidth;
     private int           fontSize;
-    private boolean       fontSizeIsDp;
     private float         proportion;
     private float         xProportion;
     private boolean       isStrikethrough;
@@ -129,15 +139,21 @@ public final class SpanUtils {
     private int spaceSize;
     private int spaceColor;
 
-    private SpannableStringBuilder mBuilder;
+    private SerializableSpannableStringBuilder mBuilder;
+    private boolean                            isCreated;
 
     private       int mType;
     private final int mTypeCharSequence = 0;
     private final int mTypeImage        = 1;
     private final int mTypeSpace        = 2;
 
+    private SpanUtils(TextView textView) {
+        this();
+        mTextView = textView;
+    }
+
     public SpanUtils() {
-        mBuilder = new SpannableStringBuilder();
+        mBuilder = new SerializableSpannableStringBuilder();
         mText = "";
         mType = -1;
         setDefault();
@@ -334,8 +350,12 @@ public SpanUtils setFontSize(@IntRange(from = 0) final int size) {
      * @return the single {@link SpanUtils} instance
      */
     public SpanUtils setFontSize(@IntRange(from = 0) final int size, final boolean isSp) {
-        this.fontSize = size;
-        this.fontSizeIsDp = isSp;
+        if (isSp) {
+            final float fontScale = Resources.getSystem().getDisplayMetrics().scaledDensity;
+            this.fontSize = (int) (size * fontScale + 0.5f);
+        } else {
+            this.fontSize = size;
+        }
         return this;
     }
 
@@ -499,10 +519,42 @@ public SpanUtils setVerticalAlign(@Align final int align) {
      * @return the single {@link SpanUtils} instance
      */
     public SpanUtils setClickSpan(@NonNull final ClickableSpan clickSpan) {
+        setMovementMethodIfNeed();
         this.clickSpan = clickSpan;
         return this;
     }
 
+    /**
+     * Set the span of click.
+     * <p>Must set {@code view.setMovementMethod(LinkMovementMethod.getInstance())}</p>
+     *
+     * @param color         The color of click span.
+     * @param underlineText True to support underline, false otherwise.
+     * @param listener      The listener of click span.
+     * @return the single {@link SpanUtils} instance
+     */
+    public SpanUtils setClickSpan(@ColorInt final int color,
+                                  final boolean underlineText,
+                                  final View.OnClickListener listener) {
+        setMovementMethodIfNeed();
+        this.clickSpan = new ClickableSpan() {
+
+            @Override
+            public void updateDrawState(@NonNull TextPaint paint) {
+                paint.setColor(color);
+                paint.setUnderlineText(underlineText);
+            }
+
+            @Override
+            public void onClick(@NonNull View widget) {
+                if (listener != null) {
+                    listener.onClick(widget);
+                }
+            }
+        };
+        return this;
+    }
+
     /**
      * Set the span of url.
      * <p>Must set {@code view.setMovementMethod(LinkMovementMethod.getInstance())}</p>
@@ -511,10 +563,17 @@ public SpanUtils setClickSpan(@NonNull final ClickableSpan clickSpan) {
      * @return the single {@link SpanUtils} instance
      */
     public SpanUtils setUrl(@NonNull final String url) {
+        setMovementMethodIfNeed();
         this.url = url;
         return this;
     }
 
+    private void setMovementMethodIfNeed() {
+        if (mTextView != null && mTextView.getMovementMethod() == null) {
+            mTextView.setMovementMethod(LinkMovementMethod.getInstance());
+        }
+    }
+
     /**
      * Set the span of blur.
      *
@@ -763,6 +822,10 @@ private void apply(final int type) {
         mType = type;
     }
 
+    public SpannableStringBuilder get() {
+        return mBuilder;
+    }
+
     /**
      * Create the span string.
      *
@@ -770,10 +833,17 @@ private void apply(final int type) {
      */
     public SpannableStringBuilder create() {
         applyLast();
+        if (mTextView != null) {
+            mTextView.setText(mBuilder);
+        }
+        isCreated = true;
         return mBuilder;
     }
 
     private void applyLast() {
+        if (isCreated) {
+            return;
+        }
         if (mType == mTypeCharSequence) {
             updateCharCharSequence();
         } else if (mType == mTypeImage) {
@@ -824,7 +894,7 @@ private void updateCharCharSequence() {
             );
         }
         if (fontSize != -1) {
-            mBuilder.setSpan(new AbsoluteSizeSpan(fontSize, fontSizeIsDp), start, end, flag);
+            mBuilder.setSpan(new AbsoluteSizeSpan(fontSize, false), start, end, flag);
         }
         if (proportion != -1) {
             mBuilder.setSpan(new RelativeSizeSpan(proportion), start, end, flag);
@@ -899,12 +969,9 @@ private void updateCharCharSequence() {
 
     private void updateImage() {
         int start = mBuilder.length();
-        if (start == 0) {
-            mBuilder.append(Character.toString((char) 2));
-            start = 1;
-        }
-        mBuilder.append("<img>");
-        int end = start + 5;
+        mText = "<img>";
+        updateCharCharSequence();
+        int end = mBuilder.length();
         if (imageBitmap != null) {
             mBuilder.setSpan(new CustomImageSpan(imageBitmap, alignImage), start, end, flag);
         } else if (imageDrawable != null) {
@@ -918,8 +985,9 @@ private void updateImage() {
 
     private void updateSpace() {
         int start = mBuilder.length();
-        mBuilder.append("< >");
-        int end = start + 3;
+        mText = "< >";
+        updateCharCharSequence();
+        int end = mBuilder.length();
         mBuilder.setSpan(new SpaceSpan(spaceSize, spaceColor), start, end, flag);
     }
 
@@ -989,7 +1057,7 @@ static class CustomLineHeightSpan implements LineHeightSpan {
         @Override
         public void chooseHeight(final CharSequence text, final int start, final int end,
                                  final int spanstartv, final int v, final Paint.FontMetricsInt fm) {
-            LogUtils.e(fm, sfm);
+//            LogUtils.e(fm, sfm);
             if (sfm == null) {
                 sfm = new Paint.FontMetricsInt();
                 sfm.top = fm.top;
@@ -1029,14 +1097,14 @@ public void chooseHeight(final CharSequence text, final int start, final int end
             if (end == ((Spanned) text).getSpanEnd(this)) {
                 sfm = null;
             }
-            LogUtils.e(fm, sfm);
+//            LogUtils.e(fm, sfm);
         }
     }
 
     static class SpaceSpan extends ReplacementSpan {
 
-        private final int width;
-        private final int color;
+        private final int   width;
+        private final Paint paint = new Paint();
 
         private SpaceSpan(final int width) {
             this(width, Color.TRANSPARENT);
@@ -1045,7 +1113,8 @@ private SpaceSpan(final int width) {
         private SpaceSpan(final int width, final int color) {
             super();
             this.width = width;
-            this.color = color;
+            paint.setColor(color);
+            paint.setStyle(Paint.Style.FILL);
         }
 
         @Override
@@ -1062,16 +1131,7 @@ public void draw(@NonNull final Canvas canvas, final CharSequence text,
                          @IntRange(from = 0) final int end,
                          final float x, final int top, final int y, final int bottom,
                          @NonNull final Paint paint) {
-            Paint.Style style = paint.getStyle();
-            int color = paint.getColor();
-
-            paint.setStyle(Paint.Style.FILL);
-            paint.setColor(this.color);
-
-            canvas.drawRect(x, top, x + width, bottom, paint);
-
-            paint.setStyle(style);
-            paint.setColor(color);
+            canvas.drawRect(x, top, x + width, bottom, this.paint);
         }
     }
 
@@ -1396,4 +1456,10 @@ public void updateDrawState(final TextPaint tp) {
             tp.setShadowLayer(radius, dx, dy, shadowColor);
         }
     }
+
+    private static class SerializableSpannableStringBuilder extends SpannableStringBuilder
+            implements Serializable {
+
+        private static final long serialVersionUID = 4909567650765875771L;
+    }
 }
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/StringUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
similarity index 85%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/StringUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
index c3254e3d32..f69987d616 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/StringUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
@@ -1,8 +1,11 @@
 package com.blankj.utilcode.util;
 
 import android.content.res.Resources;
-import android.support.annotation.ArrayRes;
-import android.support.annotation.StringRes;
+import androidx.annotation.ArrayRes;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+
+import java.util.IllegalFormatException;
 
 /**
  * <pre>
@@ -117,7 +120,7 @@ public static int length(final CharSequence s) {
     public static String upperFirstLetter(final String s) {
         if (s == null || s.length() == 0) return "";
         if (!Character.isLowerCase(s.charAt(0))) return s;
-        return String.valueOf((char) (s.charAt(0) - 32)) + s.substring(1);
+        return (char) (s.charAt(0) - 32) + s.substring(1);
     }
 
     /**
@@ -202,11 +205,7 @@ public static String toSBC(final String s) {
      * @return the string value associated with a particular resource ID.
      */
     public static String getString(@StringRes int id) {
-        try {
-            return Utils.getApp().getResources().getString(id);
-        } catch (Resources.NotFoundException ignore) {
-            return "";
-        }
+        return getString(id, (Object[]) null);
     }
 
     /**
@@ -218,9 +217,10 @@ public static String getString(@StringRes int id) {
      */
     public static String getString(@StringRes int id, Object... formatArgs) {
         try {
-            return Utils.getApp().getString(id, formatArgs);
-        } catch (Resources.NotFoundException ignore) {
-            return "";
+            return format(Utils.getApp().getString(id), formatArgs);
+        } catch (Resources.NotFoundException e) {
+            e.printStackTrace();
+            return String.valueOf(id);
         }
     }
 
@@ -233,8 +233,30 @@ public static String getString(@StringRes int id, Object... formatArgs) {
     public static String[] getStringArray(@ArrayRes int id) {
         try {
             return Utils.getApp().getResources().getStringArray(id);
-        } catch (Resources.NotFoundException ignore) {
-            return new String[0];
+        } catch (Resources.NotFoundException e) {
+            e.printStackTrace();
+            return new String[]{String.valueOf(id)};
+        }
+    }
+
+    /**
+     * Format the string.
+     *
+     * @param str  The string.
+     * @param args The args.
+     * @return a formatted string.
+     */
+    public static String format(@Nullable String str, Object... args) {
+        String text = str;
+        if (text != null) {
+            if (args != null && args.length > 0) {
+                try {
+                    text = String.format(str, args);
+                } catch (IllegalFormatException e) {
+                    e.printStackTrace();
+                }
+            }
         }
+        return text;
     }
 }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
new file mode 100644
index 0000000000..eaf32349fb
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
@@ -0,0 +1,1391 @@
+package com.blankj.utilcode.util;
+
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.Executor;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/05/08
+ *     desc  : utils about thread
+ * </pre>
+ */
+public final class ThreadUtils {
+
+    private static final Handler HANDLER = new Handler(Looper.getMainLooper());
+
+    private static final Map<Integer, Map<Integer, ExecutorService>> TYPE_PRIORITY_POOLS = new HashMap<>();
+
+    private static final Map<Task, ExecutorService> TASK_POOL_MAP = new ConcurrentHashMap<>();
+
+    private static final int   CPU_COUNT = Runtime.getRuntime().availableProcessors();
+    private static final Timer TIMER     = new Timer();
+
+    private static final byte TYPE_SINGLE = -1;
+    private static final byte TYPE_CACHED = -2;
+    private static final byte TYPE_IO     = -4;
+    private static final byte TYPE_CPU    = -8;
+
+    private static Executor sDeliver;
+
+    /**
+     * Return whether the thread is the main thread.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
+
+    public static Handler getMainHandler() {
+        return HANDLER;
+    }
+
+    public static void runOnUiThread(final Runnable runnable) {
+        if (Looper.myLooper() == Looper.getMainLooper()) {
+            runnable.run();
+        } else {
+            HANDLER.post(runnable);
+        }
+    }
+
+    public static void runOnUiThreadDelayed(final Runnable runnable, long delayMillis) {
+        HANDLER.postDelayed(runnable, delayMillis);
+    }
+
+    /**
+     * Return a thread pool that reuses a fixed number of threads
+     * operating off a shared unbounded queue, using the provided
+     * ThreadFactory to create new threads when needed.
+     *
+     * @param size The size of thread in the pool.
+     * @return a fixed thread pool
+     */
+    public static ExecutorService getFixedPool(@IntRange(from = 1) final int size) {
+        return getPoolByTypeAndPriority(size);
+    }
+
+    /**
+     * Return a thread pool that reuses a fixed number of threads
+     * operating off a shared unbounded queue, using the provided
+     * ThreadFactory to create new threads when needed.
+     *
+     * @param size     The size of thread in the pool.
+     * @param priority The priority of thread in the poll.
+     * @return a fixed thread pool
+     */
+    public static ExecutorService getFixedPool(@IntRange(from = 1) final int size,
+                                               @IntRange(from = 1, to = 10) final int priority) {
+        return getPoolByTypeAndPriority(size, priority);
+    }
+
+    /**
+     * Return a thread pool that uses a single worker thread operating
+     * off an unbounded queue, and uses the provided ThreadFactory to
+     * create a new thread when needed.
+     *
+     * @return a single thread pool
+     */
+    public static ExecutorService getSinglePool() {
+        return getPoolByTypeAndPriority(TYPE_SINGLE);
+    }
+
+    /**
+     * Return a thread pool that uses a single worker thread operating
+     * off an unbounded queue, and uses the provided ThreadFactory to
+     * create a new thread when needed.
+     *
+     * @param priority The priority of thread in the poll.
+     * @return a single thread pool
+     */
+    public static ExecutorService getSinglePool(@IntRange(from = 1, to = 10) final int priority) {
+        return getPoolByTypeAndPriority(TYPE_SINGLE, priority);
+    }
+
+    /**
+     * Return a thread pool that creates new threads as needed, but
+     * will reuse previously constructed threads when they are
+     * available.
+     *
+     * @return a cached thread pool
+     */
+    public static ExecutorService getCachedPool() {
+        return getPoolByTypeAndPriority(TYPE_CACHED);
+    }
+
+    /**
+     * Return a thread pool that creates new threads as needed, but
+     * will reuse previously constructed threads when they are
+     * available.
+     *
+     * @param priority The priority of thread in the poll.
+     * @return a cached thread pool
+     */
+    public static ExecutorService getCachedPool(@IntRange(from = 1, to = 10) final int priority) {
+        return getPoolByTypeAndPriority(TYPE_CACHED, priority);
+    }
+
+    /**
+     * Return a thread pool that creates (2 * CPU_COUNT + 1) threads
+     * operating off a queue which size is 128.
+     *
+     * @return a IO thread pool
+     */
+    public static ExecutorService getIoPool() {
+        return getPoolByTypeAndPriority(TYPE_IO);
+    }
+
+    /**
+     * Return a thread pool that creates (2 * CPU_COUNT + 1) threads
+     * operating off a queue which size is 128.
+     *
+     * @param priority The priority of thread in the poll.
+     * @return a IO thread pool
+     */
+    public static ExecutorService getIoPool(@IntRange(from = 1, to = 10) final int priority) {
+        return getPoolByTypeAndPriority(TYPE_IO, priority);
+    }
+
+    /**
+     * Return a thread pool that creates (CPU_COUNT + 1) threads
+     * operating off a queue which size is 128 and the maximum
+     * number of threads equals (2 * CPU_COUNT + 1).
+     *
+     * @return a cpu thread pool for
+     */
+    public static ExecutorService getCpuPool() {
+        return getPoolByTypeAndPriority(TYPE_CPU);
+    }
+
+    /**
+     * Return a thread pool that creates (CPU_COUNT + 1) threads
+     * operating off a queue which size is 128 and the maximum
+     * number of threads equals (2 * CPU_COUNT + 1).
+     *
+     * @param priority The priority of thread in the poll.
+     * @return a cpu thread pool for
+     */
+    public static ExecutorService getCpuPool(@IntRange(from = 1, to = 10) final int priority) {
+        return getPoolByTypeAndPriority(TYPE_CPU, priority);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool.
+     *
+     * @param size The size of thread in the fixed thread pool.
+     * @param task The task to execute.
+     * @param <T>  The type of the task's result.
+     */
+    public static <T> void executeByFixed(@IntRange(from = 1) final int size, final Task<T> task) {
+        execute(getPoolByTypeAndPriority(size), task);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool.
+     *
+     * @param size     The size of thread in the fixed thread pool.
+     * @param task     The task to execute.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByFixed(@IntRange(from = 1) final int size,
+                                          final Task<T> task,
+                                          @IntRange(from = 1, to = 10) final int priority) {
+        execute(getPoolByTypeAndPriority(size, priority), task);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool after the given delay.
+     *
+     * @param size  The size of thread in the fixed thread pool.
+     * @param task  The task to execute.
+     * @param delay The time from now to delay execution.
+     * @param unit  The time unit of the delay parameter.
+     * @param <T>   The type of the task's result.
+     */
+    public static <T> void executeByFixedWithDelay(@IntRange(from = 1) final int size,
+                                                   final Task<T> task,
+                                                   final long delay,
+                                                   final TimeUnit unit) {
+        executeWithDelay(getPoolByTypeAndPriority(size), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool after the given delay.
+     *
+     * @param size     The size of thread in the fixed thread pool.
+     * @param task     The task to execute.
+     * @param delay    The time from now to delay execution.
+     * @param unit     The time unit of the delay parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByFixedWithDelay(@IntRange(from = 1) final int size,
+                                                   final Task<T> task,
+                                                   final long delay,
+                                                   final TimeUnit unit,
+                                                   @IntRange(from = 1, to = 10) final int priority) {
+        executeWithDelay(getPoolByTypeAndPriority(size, priority), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool at fix rate.
+     *
+     * @param size   The size of thread in the fixed thread pool.
+     * @param task   The task to execute.
+     * @param period The period between successive executions.
+     * @param unit   The time unit of the period parameter.
+     * @param <T>    The type of the task's result.
+     */
+    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
+                                                   final Task<T> task,
+                                                   final long period,
+                                                   final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(size), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool at fix rate.
+     *
+     * @param size     The size of thread in the fixed thread pool.
+     * @param task     The task to execute.
+     * @param period   The period between successive executions.
+     * @param unit     The time unit of the period parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
+                                                   final Task<T> task,
+                                                   final long period,
+                                                   final TimeUnit unit,
+                                                   @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(getPoolByTypeAndPriority(size, priority), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool at fix rate.
+     *
+     * @param size         The size of thread in the fixed thread pool.
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
+                                                   final Task<T> task,
+                                                   long initialDelay,
+                                                   final long period,
+                                                   final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(size), task, initialDelay, period, unit);
+    }
+
+    /**
+     * Executes the given task in a fixed thread pool at fix rate.
+     *
+     * @param size         The size of thread in the fixed thread pool.
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param priority     The priority of thread in the poll.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
+                                                   final Task<T> task,
+                                                   long initialDelay,
+                                                   final long period,
+                                                   final TimeUnit unit,
+                                                   @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(getPoolByTypeAndPriority(size, priority), task, initialDelay, period, unit);
+    }
+
+    /**
+     * Executes the given task in a single thread pool.
+     *
+     * @param task The task to execute.
+     * @param <T>  The type of the task's result.
+     */
+    public static <T> void executeBySingle(final Task<T> task) {
+        execute(getPoolByTypeAndPriority(TYPE_SINGLE), task);
+    }
+
+    /**
+     * Executes the given task in a single thread pool.
+     *
+     * @param task     The task to execute.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeBySingle(final Task<T> task,
+                                           @IntRange(from = 1, to = 10) final int priority) {
+        execute(getPoolByTypeAndPriority(TYPE_SINGLE, priority), task);
+    }
+
+    /**
+     * Executes the given task in a single thread pool after the given delay.
+     *
+     * @param task  The task to execute.
+     * @param delay The time from now to delay execution.
+     * @param unit  The time unit of the delay parameter.
+     * @param <T>   The type of the task's result.
+     */
+    public static <T> void executeBySingleWithDelay(final Task<T> task,
+                                                    final long delay,
+                                                    final TimeUnit unit) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_SINGLE), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a single thread pool after the given delay.
+     *
+     * @param task     The task to execute.
+     * @param delay    The time from now to delay execution.
+     * @param unit     The time unit of the delay parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeBySingleWithDelay(final Task<T> task,
+                                                    final long delay,
+                                                    final TimeUnit unit,
+                                                    @IntRange(from = 1, to = 10) final int priority) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_SINGLE, priority), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a single thread pool at fix rate.
+     *
+     * @param task   The task to execute.
+     * @param period The period between successive executions.
+     * @param unit   The time unit of the period parameter.
+     * @param <T>    The type of the task's result.
+     */
+    public static <T> void executeBySingleAtFixRate(final Task<T> task,
+                                                    final long period,
+                                                    final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_SINGLE), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a single thread pool at fix rate.
+     *
+     * @param task     The task to execute.
+     * @param period   The period between successive executions.
+     * @param unit     The time unit of the period parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeBySingleAtFixRate(final Task<T> task,
+                                                    final long period,
+                                                    final TimeUnit unit,
+                                                    @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_SINGLE, priority), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a single thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeBySingleAtFixRate(final Task<T> task,
+                                                    long initialDelay,
+                                                    final long period,
+                                                    final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_SINGLE), task, initialDelay, period, unit);
+    }
+
+    /**
+     * Executes the given task in a single thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param priority     The priority of thread in the poll.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeBySingleAtFixRate(final Task<T> task,
+                                                    long initialDelay,
+                                                    final long period,
+                                                    final TimeUnit unit,
+                                                    @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(
+                getPoolByTypeAndPriority(TYPE_SINGLE, priority), task, initialDelay, period, unit
+        );
+    }
+
+    /**
+     * Executes the given task in a cached thread pool.
+     *
+     * @param task The task to execute.
+     * @param <T>  The type of the task's result.
+     */
+    public static <T> void executeByCached(final Task<T> task) {
+        execute(getPoolByTypeAndPriority(TYPE_CACHED), task);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool.
+     *
+     * @param task     The task to execute.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByCached(final Task<T> task,
+                                           @IntRange(from = 1, to = 10) final int priority) {
+        execute(getPoolByTypeAndPriority(TYPE_CACHED, priority), task);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool after the given delay.
+     *
+     * @param task  The task to execute.
+     * @param delay The time from now to delay execution.
+     * @param unit  The time unit of the delay parameter.
+     * @param <T>   The type of the task's result.
+     */
+    public static <T> void executeByCachedWithDelay(final Task<T> task,
+                                                    final long delay,
+                                                    final TimeUnit unit) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_CACHED), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool after the given delay.
+     *
+     * @param task     The task to execute.
+     * @param delay    The time from now to delay execution.
+     * @param unit     The time unit of the delay parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByCachedWithDelay(final Task<T> task,
+                                                    final long delay,
+                                                    final TimeUnit unit,
+                                                    @IntRange(from = 1, to = 10) final int priority) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_CACHED, priority), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool at fix rate.
+     *
+     * @param task   The task to execute.
+     * @param period The period between successive executions.
+     * @param unit   The time unit of the period parameter.
+     * @param <T>    The type of the task's result.
+     */
+    public static <T> void executeByCachedAtFixRate(final Task<T> task,
+                                                    final long period,
+                                                    final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CACHED), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool at fix rate.
+     *
+     * @param task     The task to execute.
+     * @param period   The period between successive executions.
+     * @param unit     The time unit of the period parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByCachedAtFixRate(final Task<T> task,
+                                                    final long period,
+                                                    final TimeUnit unit,
+                                                    @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CACHED, priority), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByCachedAtFixRate(final Task<T> task,
+                                                    long initialDelay,
+                                                    final long period,
+                                                    final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CACHED), task, initialDelay, period, unit);
+    }
+
+    /**
+     * Executes the given task in a cached thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param priority     The priority of thread in the poll.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByCachedAtFixRate(final Task<T> task,
+                                                    long initialDelay,
+                                                    final long period,
+                                                    final TimeUnit unit,
+                                                    @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(
+                getPoolByTypeAndPriority(TYPE_CACHED, priority), task, initialDelay, period, unit
+        );
+    }
+
+    /**
+     * Executes the given task in an IO thread pool.
+     *
+     * @param task The task to execute.
+     * @param <T>  The type of the task's result.
+     */
+    public static <T> void executeByIo(final Task<T> task) {
+        execute(getPoolByTypeAndPriority(TYPE_IO), task);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool.
+     *
+     * @param task     The task to execute.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByIo(final Task<T> task,
+                                       @IntRange(from = 1, to = 10) final int priority) {
+        execute(getPoolByTypeAndPriority(TYPE_IO, priority), task);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool after the given delay.
+     *
+     * @param task  The task to execute.
+     * @param delay The time from now to delay execution.
+     * @param unit  The time unit of the delay parameter.
+     * @param <T>   The type of the task's result.
+     */
+    public static <T> void executeByIoWithDelay(final Task<T> task,
+                                                final long delay,
+                                                final TimeUnit unit) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_IO), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool after the given delay.
+     *
+     * @param task     The task to execute.
+     * @param delay    The time from now to delay execution.
+     * @param unit     The time unit of the delay parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByIoWithDelay(final Task<T> task,
+                                                final long delay,
+                                                final TimeUnit unit,
+                                                @IntRange(from = 1, to = 10) final int priority) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_IO, priority), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool at fix rate.
+     *
+     * @param task   The task to execute.
+     * @param period The period between successive executions.
+     * @param unit   The time unit of the period parameter.
+     * @param <T>    The type of the task's result.
+     */
+    public static <T> void executeByIoAtFixRate(final Task<T> task,
+                                                final long period,
+                                                final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_IO), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool at fix rate.
+     *
+     * @param task     The task to execute.
+     * @param period   The period between successive executions.
+     * @param unit     The time unit of the period parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByIoAtFixRate(final Task<T> task,
+                                                final long period,
+                                                final TimeUnit unit,
+                                                @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_IO, priority), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByIoAtFixRate(final Task<T> task,
+                                                long initialDelay,
+                                                final long period,
+                                                final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_IO), task, initialDelay, period, unit);
+    }
+
+    /**
+     * Executes the given task in an IO thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param priority     The priority of thread in the poll.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByIoAtFixRate(final Task<T> task,
+                                                long initialDelay,
+                                                final long period,
+                                                final TimeUnit unit,
+                                                @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(
+                getPoolByTypeAndPriority(TYPE_IO, priority), task, initialDelay, period, unit
+        );
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool.
+     *
+     * @param task The task to execute.
+     * @param <T>  The type of the task's result.
+     */
+    public static <T> void executeByCpu(final Task<T> task) {
+        execute(getPoolByTypeAndPriority(TYPE_CPU), task);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool.
+     *
+     * @param task     The task to execute.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByCpu(final Task<T> task,
+                                        @IntRange(from = 1, to = 10) final int priority) {
+        execute(getPoolByTypeAndPriority(TYPE_CPU, priority), task);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool after the given delay.
+     *
+     * @param task  The task to execute.
+     * @param delay The time from now to delay execution.
+     * @param unit  The time unit of the delay parameter.
+     * @param <T>   The type of the task's result.
+     */
+    public static <T> void executeByCpuWithDelay(final Task<T> task,
+                                                 final long delay,
+                                                 final TimeUnit unit) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_CPU), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool after the given delay.
+     *
+     * @param task     The task to execute.
+     * @param delay    The time from now to delay execution.
+     * @param unit     The time unit of the delay parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByCpuWithDelay(final Task<T> task,
+                                                 final long delay,
+                                                 final TimeUnit unit,
+                                                 @IntRange(from = 1, to = 10) final int priority) {
+        executeWithDelay(getPoolByTypeAndPriority(TYPE_CPU, priority), task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool at fix rate.
+     *
+     * @param task   The task to execute.
+     * @param period The period between successive executions.
+     * @param unit   The time unit of the period parameter.
+     * @param <T>    The type of the task's result.
+     */
+    public static <T> void executeByCpuAtFixRate(final Task<T> task,
+                                                 final long period,
+                                                 final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CPU), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool at fix rate.
+     *
+     * @param task     The task to execute.
+     * @param period   The period between successive executions.
+     * @param unit     The time unit of the period parameter.
+     * @param priority The priority of thread in the poll.
+     * @param <T>      The type of the task's result.
+     */
+    public static <T> void executeByCpuAtFixRate(final Task<T> task,
+                                                 final long period,
+                                                 final TimeUnit unit,
+                                                 @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CPU, priority), task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByCpuAtFixRate(final Task<T> task,
+                                                 long initialDelay,
+                                                 final long period,
+                                                 final TimeUnit unit) {
+        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CPU), task, initialDelay, period, unit);
+    }
+
+    /**
+     * Executes the given task in a cpu thread pool at fix rate.
+     *
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param priority     The priority of thread in the poll.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByCpuAtFixRate(final Task<T> task,
+                                                 long initialDelay,
+                                                 final long period,
+                                                 final TimeUnit unit,
+                                                 @IntRange(from = 1, to = 10) final int priority) {
+        executeAtFixedRate(
+                getPoolByTypeAndPriority(TYPE_CPU, priority), task, initialDelay, period, unit
+        );
+    }
+
+    /**
+     * Executes the given task in a custom thread pool.
+     *
+     * @param pool The custom thread pool.
+     * @param task The task to execute.
+     * @param <T>  The type of the task's result.
+     */
+    public static <T> void executeByCustom(final ExecutorService pool, final Task<T> task) {
+        execute(pool, task);
+    }
+
+    /**
+     * Executes the given task in a custom thread pool after the given delay.
+     *
+     * @param pool  The custom thread pool.
+     * @param task  The task to execute.
+     * @param delay The time from now to delay execution.
+     * @param unit  The time unit of the delay parameter.
+     * @param <T>   The type of the task's result.
+     */
+    public static <T> void executeByCustomWithDelay(final ExecutorService pool,
+                                                    final Task<T> task,
+                                                    final long delay,
+                                                    final TimeUnit unit) {
+        executeWithDelay(pool, task, delay, unit);
+    }
+
+    /**
+     * Executes the given task in a custom thread pool at fix rate.
+     *
+     * @param pool   The custom thread pool.
+     * @param task   The task to execute.
+     * @param period The period between successive executions.
+     * @param unit   The time unit of the period parameter.
+     * @param <T>    The type of the task's result.
+     */
+    public static <T> void executeByCustomAtFixRate(final ExecutorService pool,
+                                                    final Task<T> task,
+                                                    final long period,
+                                                    final TimeUnit unit) {
+        executeAtFixedRate(pool, task, 0, period, unit);
+    }
+
+    /**
+     * Executes the given task in a custom thread pool at fix rate.
+     *
+     * @param pool         The custom thread pool.
+     * @param task         The task to execute.
+     * @param initialDelay The time to delay first execution.
+     * @param period       The period between successive executions.
+     * @param unit         The time unit of the initialDelay and period parameters.
+     * @param <T>          The type of the task's result.
+     */
+    public static <T> void executeByCustomAtFixRate(final ExecutorService pool,
+                                                    final Task<T> task,
+                                                    long initialDelay,
+                                                    final long period,
+                                                    final TimeUnit unit) {
+        executeAtFixedRate(pool, task, initialDelay, period, unit);
+    }
+
+    /**
+     * Cancel the given task.
+     *
+     * @param task The task to cancel.
+     */
+    public static void cancel(final Task task) {
+        if (task == null) return;
+        task.cancel();
+    }
+
+    /**
+     * Cancel the given tasks.
+     *
+     * @param tasks The tasks to cancel.
+     */
+    public static void cancel(final Task... tasks) {
+        if (tasks == null || tasks.length == 0) return;
+        for (Task task : tasks) {
+            if (task == null) continue;
+            task.cancel();
+        }
+    }
+
+    /**
+     * Cancel the given tasks.
+     *
+     * @param tasks The tasks to cancel.
+     */
+    public static void cancel(final List<Task> tasks) {
+        if (tasks == null || tasks.size() == 0) return;
+        for (Task task : tasks) {
+            if (task == null) continue;
+            task.cancel();
+        }
+    }
+
+    /**
+     * Cancel the tasks in pool.
+     *
+     * @param executorService The pool.
+     */
+    public static void cancel(ExecutorService executorService) {
+        if (executorService instanceof ThreadPoolExecutor4Util) {
+            for (Map.Entry<Task, ExecutorService> taskTaskInfoEntry : TASK_POOL_MAP.entrySet()) {
+                if (taskTaskInfoEntry.getValue() == executorService) {
+                    cancel(taskTaskInfoEntry.getKey());
+                }
+            }
+        } else {
+            Log.e("ThreadUtils", "The executorService is not ThreadUtils's pool.");
+        }
+    }
+
+    /**
+     * Set the deliver.
+     *
+     * @param deliver The deliver.
+     */
+    public static void setDeliver(final Executor deliver) {
+        sDeliver = deliver;
+    }
+
+    private static <T> void execute(final ExecutorService pool, final Task<T> task) {
+        execute(pool, task, 0, 0, null);
+    }
+
+    private static <T> void executeWithDelay(final ExecutorService pool,
+                                             final Task<T> task,
+                                             final long delay,
+                                             final TimeUnit unit) {
+        execute(pool, task, delay, 0, unit);
+    }
+
+    private static <T> void executeAtFixedRate(final ExecutorService pool,
+                                               final Task<T> task,
+                                               long delay,
+                                               final long period,
+                                               final TimeUnit unit) {
+        execute(pool, task, delay, period, unit);
+    }
+
+    private static <T> void execute(final ExecutorService pool, final Task<T> task,
+                                    long delay, final long period, final TimeUnit unit) {
+        synchronized (TASK_POOL_MAP) {
+            if (TASK_POOL_MAP.get(task) != null) {
+                Log.e("ThreadUtils", "Task can only be executed once.");
+                return;
+            }
+            TASK_POOL_MAP.put(task, pool);
+        }
+        if (period == 0) {
+            if (delay == 0) {
+                pool.execute(task);
+            } else {
+                TimerTask timerTask = new TimerTask() {
+                    @Override
+                    public void run() {
+                        pool.execute(task);
+                    }
+                };
+                TIMER.schedule(timerTask, unit.toMillis(delay));
+            }
+        } else {
+            task.setSchedule(true);
+            TimerTask timerTask = new TimerTask() {
+                @Override
+                public void run() {
+                    pool.execute(task);
+                }
+            };
+            TIMER.scheduleAtFixedRate(timerTask, unit.toMillis(delay), unit.toMillis(period));
+        }
+    }
+
+    private static ExecutorService getPoolByTypeAndPriority(final int type) {
+        return getPoolByTypeAndPriority(type, Thread.NORM_PRIORITY);
+    }
+
+    private static ExecutorService getPoolByTypeAndPriority(final int type, final int priority) {
+        synchronized (TYPE_PRIORITY_POOLS) {
+            ExecutorService pool;
+            Map<Integer, ExecutorService> priorityPools = TYPE_PRIORITY_POOLS.get(type);
+            if (priorityPools == null) {
+                priorityPools = new ConcurrentHashMap<>();
+                pool = ThreadPoolExecutor4Util.createPool(type, priority);
+                priorityPools.put(priority, pool);
+                TYPE_PRIORITY_POOLS.put(type, priorityPools);
+            } else {
+                pool = priorityPools.get(priority);
+                if (pool == null) {
+                    pool = ThreadPoolExecutor4Util.createPool(type, priority);
+                    priorityPools.put(priority, pool);
+                }
+            }
+            return pool;
+        }
+    }
+
+    static final class ThreadPoolExecutor4Util extends ThreadPoolExecutor {
+
+        private static ExecutorService createPool(final int type, final int priority) {
+            switch (type) {
+                case TYPE_SINGLE:
+                    return new ThreadPoolExecutor4Util(1, 1,
+                            0L, TimeUnit.MILLISECONDS,
+                            new LinkedBlockingQueue4Util(),
+                            new UtilsThreadFactory("single", priority)
+                    );
+                case TYPE_CACHED:
+                    return new ThreadPoolExecutor4Util(0, 128,
+                            60L, TimeUnit.SECONDS,
+                            new LinkedBlockingQueue4Util(true),
+                            new UtilsThreadFactory("cached", priority)
+                    );
+                case TYPE_IO:
+                    return new ThreadPoolExecutor4Util(2 * CPU_COUNT + 1, 2 * CPU_COUNT + 1,
+                            30, TimeUnit.SECONDS,
+                            new LinkedBlockingQueue4Util(),
+                            new UtilsThreadFactory("io", priority)
+                    );
+                case TYPE_CPU:
+                    return new ThreadPoolExecutor4Util(CPU_COUNT + 1, 2 * CPU_COUNT + 1,
+                            30, TimeUnit.SECONDS,
+                            new LinkedBlockingQueue4Util(true),
+                            new UtilsThreadFactory("cpu", priority)
+                    );
+                default:
+                    return new ThreadPoolExecutor4Util(type, type,
+                            0L, TimeUnit.MILLISECONDS,
+                            new LinkedBlockingQueue4Util(),
+                            new UtilsThreadFactory("fixed(" + type + ")", priority)
+                    );
+            }
+        }
+
+        private final AtomicInteger mSubmittedCount = new AtomicInteger();
+
+        private LinkedBlockingQueue4Util mWorkQueue;
+
+        ThreadPoolExecutor4Util(int corePoolSize, int maximumPoolSize,
+                                long keepAliveTime, TimeUnit unit,
+                                LinkedBlockingQueue4Util workQueue,
+                                ThreadFactory threadFactory) {
+            super(corePoolSize, maximumPoolSize,
+                    keepAliveTime, unit,
+                    workQueue,
+                    threadFactory
+            );
+            workQueue.mPool = this;
+            mWorkQueue = workQueue;
+        }
+
+        private int getSubmittedCount() {
+            return mSubmittedCount.get();
+        }
+
+        @Override
+        protected void afterExecute(Runnable r, Throwable t) {
+            mSubmittedCount.decrementAndGet();
+            super.afterExecute(r, t);
+        }
+
+        @Override
+        public void execute(@NonNull Runnable command) {
+            if (this.isShutdown()) return;
+            mSubmittedCount.incrementAndGet();
+            try {
+                super.execute(command);
+            } catch (RejectedExecutionException ignore) {
+                Log.e("ThreadUtils", "This will not happen!");
+                mWorkQueue.offer(command);
+            } catch (Throwable t) {
+                mSubmittedCount.decrementAndGet();
+            }
+        }
+    }
+
+    private static final class LinkedBlockingQueue4Util extends LinkedBlockingQueue<Runnable> {
+
+        private volatile ThreadPoolExecutor4Util mPool;
+
+        private int mCapacity = Integer.MAX_VALUE;
+
+        LinkedBlockingQueue4Util() {
+            super();
+        }
+
+        LinkedBlockingQueue4Util(boolean isAddSubThreadFirstThenAddQueue) {
+            super();
+            if (isAddSubThreadFirstThenAddQueue) {
+                mCapacity = 0;
+            }
+        }
+
+        LinkedBlockingQueue4Util(int capacity) {
+            super();
+            mCapacity = capacity;
+        }
+
+        @Override
+        public boolean offer(@NonNull Runnable runnable) {
+            if (mCapacity <= size() &&
+                    mPool != null && mPool.getPoolSize() < mPool.getMaximumPoolSize()) {
+                // create a non-core thread
+                return false;
+            }
+            return super.offer(runnable);
+        }
+    }
+
+    static final class UtilsThreadFactory extends AtomicLong
+            implements ThreadFactory {
+        private static final AtomicInteger POOL_NUMBER      = new AtomicInteger(1);
+        private static final long          serialVersionUID = -9209200509960368598L;
+        private final        String        namePrefix;
+        private final        int           priority;
+        private final        boolean       isDaemon;
+
+        UtilsThreadFactory(String prefix, int priority) {
+            this(prefix, priority, false);
+        }
+
+        UtilsThreadFactory(String prefix, int priority, boolean isDaemon) {
+            namePrefix = prefix + "-pool-" +
+                    POOL_NUMBER.getAndIncrement() +
+                    "-thread-";
+            this.priority = priority;
+            this.isDaemon = isDaemon;
+        }
+
+        @Override
+        public Thread newThread(@NonNull Runnable r) {
+            Thread t = new Thread(r, namePrefix + getAndIncrement()) {
+                @Override
+                public void run() {
+                    try {
+                        super.run();
+                    } catch (Throwable t) {
+                        Log.e("ThreadUtils", "Request threw uncaught throwable", t);
+                    }
+                }
+            };
+            t.setDaemon(isDaemon);
+            t.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
+                @Override
+                public void uncaughtException(Thread t, Throwable e) {
+                    System.out.println(e);
+                }
+            });
+            t.setPriority(priority);
+            return t;
+        }
+    }
+
+    public abstract static class SimpleTask<T> extends Task<T> {
+
+        @Override
+        public void onCancel() {
+            Log.e("ThreadUtils", "onCancel: " + Thread.currentThread());
+        }
+
+        @Override
+        public void onFail(Throwable t) {
+            Log.e("ThreadUtils", "onFail: ", t);
+        }
+
+    }
+
+    public abstract static class Task<T> implements Runnable {
+
+        private static final int NEW         = 0;
+        private static final int RUNNING     = 1;
+        private static final int EXCEPTIONAL = 2;
+        private static final int COMPLETING  = 3;
+        private static final int CANCELLED   = 4;
+        private static final int INTERRUPTED = 5;
+        private static final int TIMEOUT     = 6;
+
+        private final AtomicInteger state = new AtomicInteger(NEW);
+
+        private volatile boolean isSchedule;
+        private volatile Thread  runner;
+
+        private Timer             mTimer;
+        private long              mTimeoutMillis;
+        private OnTimeoutListener mTimeoutListener;
+
+        private Executor deliver;
+
+        public abstract T doInBackground() throws Throwable;
+
+        public abstract void onSuccess(T result);
+
+        public abstract void onCancel();
+
+        public abstract void onFail(Throwable t);
+
+        @Override
+        public void run() {
+            if (isSchedule) {
+                if (runner == null) {
+                    if (!state.compareAndSet(NEW, RUNNING)) return;
+                    runner = Thread.currentThread();
+                    if (mTimeoutListener != null) {
+                        Log.w("ThreadUtils", "Scheduled task doesn't support timeout.");
+                    }
+                } else {
+                    if (state.get() != RUNNING) return;
+                }
+            } else {
+                if (!state.compareAndSet(NEW, RUNNING)) return;
+                runner = Thread.currentThread();
+                if (mTimeoutListener != null) {
+                    mTimer = new Timer();
+                    mTimer.schedule(new TimerTask() {
+                        @Override
+                        public void run() {
+                            if (!isDone() && mTimeoutListener != null) {
+                                timeout();
+                                mTimeoutListener.onTimeout();
+                                onDone();
+                            }
+                        }
+                    }, mTimeoutMillis);
+                }
+            }
+            try {
+                final T result = doInBackground();
+                if (isSchedule) {
+                    if (state.get() != RUNNING) return;
+                    getDeliver().execute(new Runnable() {
+                        @Override
+                        public void run() {
+                            onSuccess(result);
+                        }
+                    });
+                } else {
+                    if (!state.compareAndSet(RUNNING, COMPLETING)) return;
+                    getDeliver().execute(new Runnable() {
+                        @Override
+                        public void run() {
+                            onSuccess(result);
+                            onDone();
+                        }
+                    });
+                }
+            } catch (InterruptedException ignore) {
+                state.compareAndSet(CANCELLED, INTERRUPTED);
+            } catch (final Throwable throwable) {
+                if (!state.compareAndSet(RUNNING, EXCEPTIONAL)) return;
+                getDeliver().execute(new Runnable() {
+                    @Override
+                    public void run() {
+                        onFail(throwable);
+                        onDone();
+                    }
+                });
+            }
+        }
+
+        public void cancel() {
+            cancel(true);
+        }
+
+        public void cancel(boolean mayInterruptIfRunning) {
+            synchronized (state) {
+                if (state.get() > RUNNING) return;
+                state.set(CANCELLED);
+            }
+            if (mayInterruptIfRunning) {
+                if (runner != null) {
+                    runner.interrupt();
+                }
+            }
+
+            getDeliver().execute(new Runnable() {
+                @Override
+                public void run() {
+                    onCancel();
+                    onDone();
+                }
+            });
+        }
+
+        private void timeout() {
+            synchronized (state) {
+                if (state.get() > RUNNING) return;
+                state.set(TIMEOUT);
+            }
+            if (runner != null) {
+                runner.interrupt();
+            }
+        }
+
+
+        public boolean isCanceled() {
+            return state.get() >= CANCELLED;
+        }
+
+        public boolean isDone() {
+            return state.get() > RUNNING;
+        }
+
+        public Task<T> setDeliver(Executor deliver) {
+            this.deliver = deliver;
+            return this;
+        }
+
+        /**
+         * Scheduled task doesn't support timeout.
+         */
+        public Task<T> setTimeout(final long timeoutMillis, final OnTimeoutListener listener) {
+            mTimeoutMillis = timeoutMillis;
+            mTimeoutListener = listener;
+            return this;
+        }
+
+        private void setSchedule(boolean isSchedule) {
+            this.isSchedule = isSchedule;
+        }
+
+        private Executor getDeliver() {
+            if (deliver == null) {
+                return getGlobalDeliver();
+            }
+            return deliver;
+        }
+
+        @CallSuper
+        protected void onDone() {
+            TASK_POOL_MAP.remove(this);
+            if (mTimer != null) {
+                mTimer.cancel();
+                mTimer = null;
+                mTimeoutListener = null;
+            }
+        }
+
+        public interface OnTimeoutListener {
+            void onTimeout();
+        }
+    }
+
+    public static class SyncValue<T> {
+
+        private CountDownLatch mLatch = new CountDownLatch(1);
+        private AtomicBoolean  mFlag  = new AtomicBoolean();
+        private T              mValue;
+
+        public void setValue(T value) {
+            if (mFlag.compareAndSet(false, true)) {
+                mValue = value;
+                mLatch.countDown();
+            }
+        }
+
+        public T getValue() {
+            if (!mFlag.get()) {
+                try {
+                    mLatch.await();
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+            return mValue;
+        }
+
+        public T getValue(long timeout, TimeUnit unit, T defaultValue) {
+            if (!mFlag.get()) {
+                try {
+                    mLatch.await(timeout, unit);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                    return defaultValue;
+                }
+            }
+            return mValue;
+        }
+    }
+
+    private static Executor getGlobalDeliver() {
+        if (sDeliver == null) {
+            sDeliver = new Executor() {
+                @Override
+                public void execute(@NonNull Runnable command) {
+                    runOnUiThread(command);
+                }
+            };
+        }
+        return sDeliver;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThrowableUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThrowableUtils.java
new file mode 100644
index 0000000000..f7f9aa750b
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ThrowableUtils.java
@@ -0,0 +1,91 @@
+package com.blankj.utilcode.util;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/02/12
+ *     desc  : utils about exception
+ * </pre>
+ */
+public class ThrowableUtils {
+
+    private static final String LINE_SEP = System.getProperty("line.separator");
+
+    private ThrowableUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    public static String getFullStackTrace(Throwable throwable) {
+        final List<Throwable> throwableList = new ArrayList<>();
+        while (throwable != null && !throwableList.contains(throwable)) {
+            throwableList.add(throwable);
+            throwable = throwable.getCause();
+        }
+        final int size = throwableList.size();
+        final List<String> frames = new ArrayList<>();
+        List<String> nextTrace = getStackFrameList(throwableList.get(size - 1));
+        for (int i = size; --i >= 0; ) {
+            final List<String> trace = nextTrace;
+            if (i != 0) {
+                nextTrace = getStackFrameList(throwableList.get(i - 1));
+                removeCommonFrames(trace, nextTrace);
+            }
+            if (i == size - 1) {
+                frames.add(throwableList.get(i).toString());
+            } else {
+                frames.add(" Caused by: " + throwableList.get(i).toString());
+            }
+            frames.addAll(trace);
+        }
+        StringBuilder sb = new StringBuilder();
+        for (final String element : frames) {
+            sb.append(element).append(LINE_SEP);
+        }
+        return sb.toString();
+    }
+
+    private static List<String> getStackFrameList(final Throwable throwable) {
+        final StringWriter sw = new StringWriter();
+        final PrintWriter pw = new PrintWriter(sw, true);
+        throwable.printStackTrace(pw);
+        final String stackTrace = sw.toString();
+        final StringTokenizer frames = new StringTokenizer(stackTrace, LINE_SEP);
+        final List<String> list = new ArrayList<>();
+        boolean traceStarted = false;
+        while (frames.hasMoreTokens()) {
+            final String token = frames.nextToken();
+            // Determine if the line starts with <whitespace>at
+            final int at = token.indexOf("at");
+            if (at != -1 && token.substring(0, at).trim().isEmpty()) {
+                traceStarted = true;
+                list.add(token);
+            } else if (traceStarted) {
+                break;
+            }
+        }
+        return list;
+    }
+
+    private static void removeCommonFrames(final List<String> causeFrames, final List<String> wrapperFrames) {
+        int causeFrameIndex = causeFrames.size() - 1;
+        int wrapperFrameIndex = wrapperFrames.size() - 1;
+        while (causeFrameIndex >= 0 && wrapperFrameIndex >= 0) {
+            // Remove the frame from the cause trace if it is the same
+            // as in the wrapper trace
+            final String causeFrame = causeFrames.get(causeFrameIndex);
+            final String wrapperFrame = wrapperFrames.get(wrapperFrameIndex);
+            if (causeFrame.equals(wrapperFrame)) {
+                causeFrames.remove(causeFrameIndex);
+            }
+            causeFrameIndex--;
+            wrapperFrameIndex--;
+        }
+    }
+}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/TimeUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
similarity index 88%
rename from utilcode/lib/src/main/java/com/blankj/utilcode/util/TimeUtils.java
rename to lib/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
index adaa920474..ee700cbeb7 100644
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/TimeUtils.java
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
@@ -1,6 +1,8 @@
 package com.blankj.utilcode.util;
 
-import android.support.annotation.NonNull;
+import android.annotation.SuppressLint;
+import android.os.Build;
+import android.provider.Settings;
 
 import com.blankj.utilcode.constant.TimeConstants;
 
@@ -9,7 +11,12 @@
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
 import java.util.Locale;
+import java.util.Map;
+
+import androidx.annotation.NonNull;
 
 /**
  * <pre>
@@ -21,13 +28,39 @@
  */
 public final class TimeUtils {
 
-    private static final ThreadLocal<SimpleDateFormat> SDF_THREAD_LOCAL = new ThreadLocal<>();
+    private static final ThreadLocal<Map<String, SimpleDateFormat>> SDF_THREAD_LOCAL
+            = new ThreadLocal<Map<String, SimpleDateFormat>>() {
+        @Override
+        protected Map<String, SimpleDateFormat> initialValue() {
+            return new HashMap<>();
+        }
+    };
 
     private static SimpleDateFormat getDefaultFormat() {
-        SimpleDateFormat simpleDateFormat = SDF_THREAD_LOCAL.get();
+        return getSafeDateFormat("yyyy-MM-dd HH:mm:ss");
+    }
+    /**
+     * Checks whether the device is using Network Provided Time or not.
+     *  Useful in situations where you want to verify that the device has a correct time set, to avoid fraud, or if you want to prevent the user from messing with the time and abusing your "one-time" and "expiring" features. 
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isUsingNetworkProvidedTime() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            return Settings.Global.getInt(Utils.getApp().getContentResolver(), Settings.Global.AUTO_TIME, 0) == 1;
+        } else {
+            return android.provider.Settings.System.getInt(Utils.getApp().getContentResolver(), android.provider.Settings.System.AUTO_TIME, 0) == 1;
+        }
+    }
+    
+
+    @SuppressLint("SimpleDateFormat")
+    public static SimpleDateFormat getSafeDateFormat(String pattern) {
+        Map<String, SimpleDateFormat> sdfMap = SDF_THREAD_LOCAL.get();
+        //noinspection ConstantConditions
+        SimpleDateFormat simpleDateFormat = sdfMap.get(pattern);
         if (simpleDateFormat == null) {
-            simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-            SDF_THREAD_LOCAL.set(simpleDateFormat);
+            simpleDateFormat = new SimpleDateFormat(pattern);
+            sdfMap.put(pattern, simpleDateFormat);
         }
         return simpleDateFormat;
     }
@@ -47,6 +80,17 @@ public static String millis2String(final long millis) {
         return millis2String(millis, getDefaultFormat());
     }
 
+    /**
+     * Milliseconds to the formatted time string.
+     *
+     * @param millis  The milliseconds.
+     * @param pattern The pattern of date format, such as yyyy/MM/dd HH:mm
+     * @return the formatted time string
+     */
+    public static String millis2String(long millis, @NonNull final String pattern) {
+        return millis2String(millis, getSafeDateFormat(pattern));
+    }
+
     /**
      * Milliseconds to the formatted time string.
      *
@@ -69,6 +113,17 @@ public static long string2Millis(final String time) {
         return string2Millis(time, getDefaultFormat());
     }
 
+    /**
+     * Formatted time string to the milliseconds.
+     *
+     * @param time    The formatted time string.
+     * @param pattern The pattern of date format, such as yyyy/MM/dd HH:mm
+     * @return the milliseconds
+     */
+    public static long string2Millis(final String time, @NonNull final String pattern) {
+        return string2Millis(time, getSafeDateFormat(pattern));
+    }
+
     /**
      * Formatted time string to the milliseconds.
      *
@@ -96,6 +151,17 @@ public static Date string2Date(final String time) {
         return string2Date(time, getDefaultFormat());
     }
 
+    /**
+     * Formatted time string to the date.
+     *
+     * @param time    The formatted time string.
+     * @param pattern The pattern of date format, such as yyyy/MM/dd HH:mm
+     * @return the date
+     */
+    public static Date string2Date(final String time, @NonNull final String pattern) {
+        return string2Date(time, getSafeDateFormat(pattern));
+    }
+
     /**
      * Formatted time string to the date.
      *
@@ -123,6 +189,17 @@ public static String date2String(final Date date) {
         return date2String(date, getDefaultFormat());
     }
 
+    /**
+     * Date to the formatted time string.
+     *
+     * @param date    The date.
+     * @param pattern The pattern of date format, such as yyyy/MM/dd HH:mm
+     * @return the formatted time string
+     */
+    public static String date2String(final Date date, @NonNull final String pattern) {
+        return getSafeDateFormat(pattern).format(date);
+    }
+
     /**
      * Date to the formatted time string.
      *
@@ -1201,6 +1278,129 @@ public static String getUSWeek(final long millis) {
         return getUSWeek(new Date(millis));
     }
 
+    /**
+     * Return whether it is am.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAm() {
+        Calendar cal = Calendar.getInstance();
+        return cal.get(GregorianCalendar.AM_PM) == 0;
+    }
+
+    /**
+     * Return whether it is am.
+     * <p>The pattern is {@code yyyy-MM-dd HH:mm:ss}.</p>
+     *
+     * @param time The formatted time string.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAm(final String time) {
+        return getValueByCalendarField(time, getDefaultFormat(), GregorianCalendar.AM_PM) == 0;
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @param time   The formatted time string.
+     * @param format The format.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAm(final String time,
+                               @NonNull final DateFormat format) {
+        return getValueByCalendarField(time, format, GregorianCalendar.AM_PM) == 0;
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @param date The date.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAm(final Date date) {
+        return getValueByCalendarField(date, GregorianCalendar.AM_PM) == 0;
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @param millis The milliseconds.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isAm(final long millis) {
+        return getValueByCalendarField(millis, GregorianCalendar.AM_PM) == 0;
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPm() {
+        return !isAm();
+    }
+
+    /**
+     * Return whether it is am.
+     * <p>The pattern is {@code yyyy-MM-dd HH:mm:ss}.</p>
+     *
+     * @param time The formatted time string.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPm(final String time) {
+        return !isAm(time);
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @param time   The formatted time string.
+     * @param format The format.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPm(final String time,
+                               @NonNull final DateFormat format) {
+        return !isAm(time, format);
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @param date The date.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPm(final Date date) {
+        return !isAm(date);
+    }
+
+    /**
+     * Return whether it is am.
+     *
+     * @param millis The milliseconds.
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isPm(final long millis) {
+        return !isAm(millis);
+    }
+
+    /**
+     * Returns the value of the given calendar field.
+     *
+     * @param field The given calendar field.
+     *              <ul>
+     *              <li>{@link Calendar#ERA}</li>
+     *              <li>{@link Calendar#YEAR}</li>
+     *              <li>{@link Calendar#MONTH}</li>
+     *              <li>...</li>
+     *              <li>{@link Calendar#DST_OFFSET}</li>
+     *              </ul>
+     * @return the value of the given calendar field
+     */
+    public static int getValueByCalendarField(final int field) {
+        Calendar cal = Calendar.getInstance();
+        return cal.get(field);
+    }
+
     /**
      * Returns the value of the given calendar field.
      * <p>The pattern is {@code yyyy-MM-dd HH:mm:ss}.</p>
@@ -1341,7 +1541,7 @@ public static String getChineseZodiac(final int year) {
     private static final int[]    ZODIAC_FLAGS = {20, 19, 21, 21, 21, 22, 23, 23, 23, 24, 23, 22};
     private static final String[] ZODIAC       = {
             "水瓶座", "双鱼座", "白羊座", "金牛座", "双子座", "巨蟹座",
-            "狮子座", "处女座", "天秤座", "天蝎座", "射手座", "魔羯座"
+            "狮子座", "处女座", "天秤座", "天蝎座", "射手座", "摩羯座"
     };
 
     /**
@@ -1411,7 +1611,7 @@ private static long millis2TimeSpan(final long millis, @TimeConstants.Unit final
         return millis / unit;
     }
 
-    private static String millis2FitTimeSpan(long millis, int precision) {
+    static String millis2FitTimeSpan(long millis, int precision) {
         if (precision <= 0) return null;
         precision = Math.min(precision, 5);
         String[] units = {"天", "小时", "分钟", "秒", "毫秒"};
@@ -1431,4 +1631,5 @@ private static String millis2FitTimeSpan(long millis, int precision) {
         }
         return sb.toString();
     }
+
 }
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java
new file mode 100644
index 0000000000..aa856f1150
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java
@@ -0,0 +1,911 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.graphics.PixelFormat;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.GradientDrawable;
+import android.os.Build;
+import android.os.Handler;
+import android.os.Message;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.blankj.utilcode.R;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
+import java.lang.reflect.Field;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.ColorInt;
+import androidx.annotation.DrawableRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringDef;
+import androidx.annotation.StringRes;
+import androidx.core.app.NotificationManagerCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.view.ViewCompat;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/29
+ *     desc  : utils about toast
+ * </pre>
+ */
+public final class ToastUtils {
+
+    @StringDef({MODE.LIGHT, MODE.DARK})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface MODE {
+        String LIGHT = "light";
+        String DARK  = "dark";
+    }
+
+    private static final String     TAG_TOAST     = "TAG_TOAST";
+    private static final int        COLOR_DEFAULT = 0xFEFFFFFF;
+    private static final String     NULL          = "toast null";
+    private static final String     NOTHING       = "toast nothing";
+    private static final ToastUtils DEFAULT_MAKER = make();
+
+    private static WeakReference<IToast> sWeakToast;
+
+    private String     mMode;
+    private int        mGravity            = -1;
+    private int        mXOffset            = -1;
+    private int        mYOffset            = -1;
+    private int        mBgColor            = COLOR_DEFAULT;
+    private int        mBgResource         = -1;
+    private int        mTextColor          = COLOR_DEFAULT;
+    private int        mTextSize           = -1;
+    private boolean    isLong              = false;
+    private Drawable[] mIcons              = new Drawable[4];
+    private boolean    isNotUseSystemToast = false;
+
+    /**
+     * Make a toast.
+     *
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public static ToastUtils make() {
+        return new ToastUtils();
+    }
+
+    /**
+     * @param mode The mode.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setMode(@MODE String mode) {
+        mMode = mode;
+        return this;
+    }
+
+    /**
+     * Set the gravity.
+     *
+     * @param gravity The gravity.
+     * @param xOffset X-axis offset, in pixel.
+     * @param yOffset Y-axis offset, in pixel.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setGravity(final int gravity, final int xOffset, final int yOffset) {
+        mGravity = gravity;
+        mXOffset = xOffset;
+        mYOffset = yOffset;
+        return this;
+    }
+
+    /**
+     * Set the color of background.
+     *
+     * @param backgroundColor The color of background.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setBgColor(@ColorInt final int backgroundColor) {
+        mBgColor = backgroundColor;
+        return this;
+    }
+
+    /**
+     * Set the resource of background.
+     *
+     * @param bgResource The resource of background.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setBgResource(@DrawableRes final int bgResource) {
+        mBgResource = bgResource;
+        return this;
+    }
+
+    /**
+     * Set the text color of toast.
+     *
+     * @param msgColor The text color of toast.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setTextColor(@ColorInt final int msgColor) {
+        mTextColor = msgColor;
+        return this;
+    }
+
+    /**
+     * Set the text size of toast.
+     *
+     * @param textSize The text size of toast.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setTextSize(final int textSize) {
+        mTextSize = textSize;
+        return this;
+    }
+
+    /**
+     * Set the toast for a long period of time.
+     *
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setDurationIsLong(boolean isLong) {
+        this.isLong = isLong;
+        return this;
+    }
+
+    /**
+     * Set the left icon of toast.
+     *
+     * @param resId The left icon resource identifier.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setLeftIcon(@DrawableRes int resId) {
+        return setLeftIcon(ContextCompat.getDrawable(Utils.getApp(), resId));
+    }
+
+    /**
+     * Set the left icon of toast.
+     *
+     * @param drawable The left icon drawable.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setLeftIcon(@Nullable Drawable drawable) {
+        mIcons[0] = drawable;
+        return this;
+    }
+
+    /**
+     * Set the top icon of toast.
+     *
+     * @param resId The top icon resource identifier.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setTopIcon(@DrawableRes int resId) {
+        return setTopIcon(ContextCompat.getDrawable(Utils.getApp(), resId));
+    }
+
+    /**
+     * Set the top icon of toast.
+     *
+     * @param drawable The top icon drawable.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setTopIcon(@Nullable Drawable drawable) {
+        mIcons[1] = drawable;
+        return this;
+    }
+
+    /**
+     * Set the right icon of toast.
+     *
+     * @param resId The right icon resource identifier.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setRightIcon(@DrawableRes int resId) {
+        return setRightIcon(ContextCompat.getDrawable(Utils.getApp(), resId));
+    }
+
+    /**
+     * Set the right icon of toast.
+     *
+     * @param drawable The right icon drawable.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setRightIcon(@Nullable Drawable drawable) {
+        mIcons[2] = drawable;
+        return this;
+    }
+
+    /**
+     * Set the left bottom of toast.
+     *
+     * @param resId The bottom icon resource identifier.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setBottomIcon(int resId) {
+        return setBottomIcon(ContextCompat.getDrawable(Utils.getApp(), resId));
+    }
+
+    /**
+     * Set the bottom icon of toast.
+     *
+     * @param drawable The bottom icon drawable.
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setBottomIcon(@Nullable Drawable drawable) {
+        mIcons[3] = drawable;
+        return this;
+    }
+
+    /**
+     * Set not use system toast.
+     *
+     * @return the single {@link ToastUtils} instance
+     */
+    @NonNull
+    public final ToastUtils setNotUseSystemToast() {
+        isNotUseSystemToast = true;
+        return this;
+    }
+
+    /**
+     * Return the default {@link ToastUtils} instance.
+     *
+     * @return the default {@link ToastUtils} instance
+     */
+    @NonNull
+    public static ToastUtils getDefaultMaker() {
+        return DEFAULT_MAKER;
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param text The text.
+     */
+    public final void show(@Nullable final CharSequence text) {
+        show(text, getDuration(), this);
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param resId The resource id for text.
+     */
+    public final void show(@StringRes final int resId) {
+        show(UtilsBridge.getString(resId), getDuration(), this);
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param resId The resource id for text.
+     * @param args  The args.
+     */
+    public final void show(@StringRes final int resId, final Object... args) {
+        show(UtilsBridge.getString(resId, args), getDuration(), this);
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param format The format.
+     * @param args   The args.
+     */
+    public final void show(@Nullable final String format, final Object... args) {
+        show(UtilsBridge.format(format, args), getDuration(), this);
+    }
+
+    /**
+     * Show custom toast.
+     */
+    public final void show(@NonNull final View view) {
+        show(view, getDuration(), this);
+    }
+
+    private int getDuration() {
+        return isLong ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT;
+    }
+
+    private View tryApplyUtilsToastView(final CharSequence text) {
+        if (!MODE.DARK.equals(mMode) && !MODE.LIGHT.equals(mMode)
+                && mIcons[0] == null && mIcons[1] == null && mIcons[2] == null && mIcons[3] == null) {
+            return null;
+        }
+
+        View toastView = UtilsBridge.layoutId2View(R.layout.utils_toast_view);
+        TextView messageTv = toastView.findViewById(android.R.id.message);
+        if (MODE.DARK.equals(mMode)) {
+            GradientDrawable bg = (GradientDrawable) toastView.getBackground().mutate();
+            bg.setColor(Color.parseColor("#BB000000"));
+            messageTv.setTextColor(Color.WHITE);
+        }
+        messageTv.setText(text);
+        if (mIcons[0] != null) {
+            View leftIconView = toastView.findViewById(R.id.utvLeftIconView);
+            ViewCompat.setBackground(leftIconView, mIcons[0]);
+            leftIconView.setVisibility(View.VISIBLE);
+        }
+        if (mIcons[1] != null) {
+            View topIconView = toastView.findViewById(R.id.utvTopIconView);
+            ViewCompat.setBackground(topIconView, mIcons[1]);
+            topIconView.setVisibility(View.VISIBLE);
+        }
+        if (mIcons[2] != null) {
+            View rightIconView = toastView.findViewById(R.id.utvRightIconView);
+            ViewCompat.setBackground(rightIconView, mIcons[2]);
+            rightIconView.setVisibility(View.VISIBLE);
+        }
+        if (mIcons[3] != null) {
+            View bottomIconView = toastView.findViewById(R.id.utvBottomIconView);
+            ViewCompat.setBackground(bottomIconView, mIcons[3]);
+            bottomIconView.setVisibility(View.VISIBLE);
+        }
+        return toastView;
+    }
+
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param text The text.
+     */
+    public static void showShort(@Nullable final CharSequence text) {
+        show(text, Toast.LENGTH_SHORT, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param resId The resource id for text.
+     */
+    public static void showShort(@StringRes final int resId) {
+        show(UtilsBridge.getString(resId), Toast.LENGTH_SHORT, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param resId The resource id for text.
+     * @param args  The args.
+     */
+    public static void showShort(@StringRes final int resId, final Object... args) {
+        show(UtilsBridge.getString(resId, args), Toast.LENGTH_SHORT, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a short period of time.
+     *
+     * @param format The format.
+     * @param args   The args.
+     */
+    public static void showShort(@Nullable final String format, final Object... args) {
+        show(UtilsBridge.format(format, args), Toast.LENGTH_SHORT, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a long period of time.
+     *
+     * @param text The text.
+     */
+    public static void showLong(@Nullable final CharSequence text) {
+        show(text, Toast.LENGTH_LONG, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a long period of time.
+     *
+     * @param resId The resource id for text.
+     */
+    public static void showLong(@StringRes final int resId) {
+        show(UtilsBridge.getString(resId), Toast.LENGTH_LONG, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a long period of time.
+     *
+     * @param resId The resource id for text.
+     * @param args  The args.
+     */
+    public static void showLong(@StringRes final int resId, final Object... args) {
+        show(UtilsBridge.getString(resId, args), Toast.LENGTH_LONG, DEFAULT_MAKER);
+    }
+
+    /**
+     * Show the toast for a long period of time.
+     *
+     * @param format The format.
+     * @param args   The args.
+     */
+    public static void showLong(@Nullable final String format, final Object... args) {
+        show(UtilsBridge.format(format, args), Toast.LENGTH_LONG, DEFAULT_MAKER);
+    }
+
+    /**
+     * Cancel the toast.
+     */
+    public static void cancel() {
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (sWeakToast != null) {
+                    final IToast iToast = ToastUtils.sWeakToast.get();
+                    if (iToast != null) {
+                        iToast.cancel();
+                    }
+                    sWeakToast = null;
+                }
+            }
+        });
+    }
+
+    private static void show(@Nullable final CharSequence text, final int duration, final ToastUtils utils) {
+        show(null, getToastFriendlyText(text), duration, utils);
+    }
+
+    private static void show(@NonNull final View view, final int duration, final ToastUtils utils) {
+        show(view, null, duration, utils);
+    }
+
+    private static void show(@Nullable final View view,
+                             @Nullable final CharSequence text,
+                             final int duration,
+                             @NonNull final ToastUtils utils) {
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                cancel();
+                IToast iToast = newToast(utils);
+                ToastUtils.sWeakToast = new WeakReference<>(iToast);
+                if (view != null) {
+                    iToast.setToastView(view);
+                } else {
+                    iToast.setToastView(text);
+                }
+                iToast.show(duration);
+            }
+        });
+    }
+
+    private static CharSequence getToastFriendlyText(CharSequence src) {
+        CharSequence text = src;
+        if (text == null) {
+            text = NULL;
+        } else if (text.length() == 0) {
+            text = NOTHING;
+        }
+        return text;
+    }
+
+    private static IToast newToast(ToastUtils toastUtils) {
+        if (!toastUtils.isNotUseSystemToast) {
+            if (NotificationManagerCompat.from(Utils.getApp()).areNotificationsEnabled()) {
+                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+                    return new SystemToast(toastUtils);
+                }
+                if (!UtilsBridge.isGrantedDrawOverlays()) {
+                    return new SystemToast(toastUtils);
+                }
+            }
+        }
+
+        // not use system or notification disable
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
+            return new WindowManagerToast(toastUtils, WindowManager.LayoutParams.TYPE_TOAST);
+        } else if (UtilsBridge.isGrantedDrawOverlays()) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                return new WindowManagerToast(toastUtils, WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
+            } else {
+                return new WindowManagerToast(toastUtils, WindowManager.LayoutParams.TYPE_PHONE);
+            }
+        }
+        return new ActivityToast(toastUtils);
+    }
+
+    static final class SystemToast extends AbsToast {
+
+        SystemToast(ToastUtils toastUtils) {
+            super(toastUtils);
+            if (Build.VERSION.SDK_INT == Build.VERSION_CODES.N_MR1) {
+                try {
+                    //noinspection JavaReflectionMemberAccess
+                    Field mTNField = Toast.class.getDeclaredField("mTN");
+                    mTNField.setAccessible(true);
+                    Object mTN = mTNField.get(mToast);
+                    Field mTNmHandlerField = mTNField.getType().getDeclaredField("mHandler");
+                    mTNmHandlerField.setAccessible(true);
+                    Handler tnHandler = (Handler) mTNmHandlerField.get(mTN);
+                    mTNmHandlerField.set(mTN, new SafeHandler(tnHandler));
+                } catch (Exception ignored) {/**/}
+            }
+        }
+
+        @Override
+        public void show(int duration) {
+            if (mToast == null) return;
+            mToast.setDuration(duration);
+            mToast.show();
+        }
+
+        static class SafeHandler extends Handler {
+            private Handler impl;
+
+            SafeHandler(Handler impl) {
+                this.impl = impl;
+            }
+
+            @Override
+            public void handleMessage(@NonNull Message msg) {
+                impl.handleMessage(msg);
+            }
+
+            @Override
+            public void dispatchMessage(@NonNull Message msg) {
+                try {
+                    impl.dispatchMessage(msg);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    static final class WindowManagerToast extends AbsToast {
+
+        private WindowManager mWM;
+
+        private WindowManager.LayoutParams mParams;
+
+        WindowManagerToast(ToastUtils toastUtils, int type) {
+            super(toastUtils);
+            mParams = new WindowManager.LayoutParams();
+            mWM = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+            mParams.type = type;
+        }
+
+        WindowManagerToast(ToastUtils toastUtils, WindowManager wm, int type) {
+            super(toastUtils);
+            mParams = new WindowManager.LayoutParams();
+            mWM = wm;
+            mParams.type = type;
+        }
+
+        @Override
+        public void show(final int duration) {
+            if (mToast == null) return;
+            mParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
+            mParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
+            mParams.format = PixelFormat.TRANSLUCENT;
+            mParams.windowAnimations = android.R.style.Animation_Toast;
+            mParams.setTitle("ToastWithoutNotification");
+            mParams.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
+                    | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
+            mParams.packageName = Utils.getApp().getPackageName();
+
+            mParams.gravity = mToast.getGravity();
+            if ((mParams.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL) {
+                mParams.horizontalWeight = 1.0f;
+            }
+            if ((mParams.gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.FILL_VERTICAL) {
+                mParams.verticalWeight = 1.0f;
+            }
+
+            mParams.x = mToast.getXOffset();
+            mParams.y = mToast.getYOffset();
+            mParams.horizontalMargin = mToast.getHorizontalMargin();
+            mParams.verticalMargin = mToast.getVerticalMargin();
+
+            try {
+                if (mWM != null) {
+                    mWM.addView(mToastView, mParams);
+                }
+            } catch (Exception ignored) {/**/}
+
+            UtilsBridge.runOnUiThreadDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    cancel();
+                }
+            }, duration == Toast.LENGTH_SHORT ? 2000 : 3500);
+        }
+
+        @Override
+        public void cancel() {
+            try {
+                if (mWM != null) {
+                    mWM.removeViewImmediate(mToastView);
+                    mWM = null;
+                }
+            } catch (Exception ignored) {/**/}
+            super.cancel();
+        }
+    }
+
+    static final class ActivityToast extends AbsToast {
+
+        private static int sShowingIndex = 0;
+
+        private Utils.ActivityLifecycleCallbacks mActivityLifecycleCallbacks;
+        private IToast                           iToast;
+
+        ActivityToast(ToastUtils toastUtils) {
+            super(toastUtils);
+        }
+
+        @Override
+        public void show(int duration) {
+            if (mToast == null) return;
+            if (!UtilsBridge.isAppForeground()) {
+                // try to use system toast
+                iToast = showSystemToast(duration);
+                return;
+            }
+            boolean hasAliveActivity = false;
+            for (final Activity activity : UtilsBridge.getActivityList()) {
+                if (!UtilsBridge.isActivityAlive(activity)) {
+                    continue;
+                }
+                if (!hasAliveActivity) {
+                    hasAliveActivity = true;
+                    iToast = showWithActivityWindow(activity, duration);
+                } else {
+                    showWithActivityView(activity, sShowingIndex, true);
+                }
+            }
+            if (hasAliveActivity) {
+                registerLifecycleCallback();
+                UtilsBridge.runOnUiThreadDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        cancel();
+                    }
+                }, duration == Toast.LENGTH_SHORT ? 2000 : 3500);
+
+                ++sShowingIndex;
+            } else {
+                // try to use system toast
+                iToast = showSystemToast(duration);
+            }
+        }
+
+        @Override
+        public void cancel() {
+            if (isShowing()) {
+                unregisterLifecycleCallback();
+                for (Activity activity : UtilsBridge.getActivityList()) {
+                    if (!UtilsBridge.isActivityAlive(activity)) {
+                        continue;
+                    }
+                    final Window window = activity.getWindow();
+                    if (window != null) {
+                        ViewGroup decorView = (ViewGroup) window.getDecorView();
+                        View toastView = decorView.findViewWithTag(TAG_TOAST + (sShowingIndex - 1));
+                        if (toastView != null) {
+                            try {
+                                decorView.removeView(toastView);
+                            } catch (Exception ignored) {/**/}
+                        }
+                    }
+                }
+            }
+            if (iToast != null) {
+                iToast.cancel();
+                iToast = null;
+            }
+            super.cancel();
+        }
+
+        private IToast showSystemToast(int duration) {
+            SystemToast systemToast = new SystemToast(mToastUtils);
+            systemToast.mToast = mToast;
+            systemToast.show(duration);
+            return systemToast;
+        }
+
+        private IToast showWithActivityWindow(Activity activity, int duration) {
+            WindowManagerToast wmToast = new WindowManagerToast(mToastUtils, activity.getWindowManager(), WindowManager.LayoutParams.LAST_APPLICATION_WINDOW);
+            wmToast.mToastView = getToastViewSnapshot(-1);
+            wmToast.mToast = mToast;
+            wmToast.show(duration);
+            return wmToast;
+        }
+
+        private void showWithActivityView(final Activity activity, final int index, boolean useAnim) {
+            final Window window = activity.getWindow();
+            if (window != null) {
+                final ViewGroup decorView = (ViewGroup) window.getDecorView();
+                FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
+                        ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT
+                );
+                lp.gravity = mToast.getGravity();
+                lp.bottomMargin = mToast.getYOffset() + UtilsBridge.getNavBarHeight();
+                lp.topMargin = mToast.getYOffset() + UtilsBridge.getStatusBarHeight();
+                lp.leftMargin = mToast.getXOffset();
+                View toastViewSnapshot = getToastViewSnapshot(index);
+                if (useAnim) {
+                    toastViewSnapshot.setAlpha(0);
+                    toastViewSnapshot.animate().alpha(1).setDuration(200).start();
+                }
+                decorView.addView(toastViewSnapshot, lp);
+            }
+        }
+
+        private void registerLifecycleCallback() {
+            final int index = sShowingIndex;
+            mActivityLifecycleCallbacks = new Utils.ActivityLifecycleCallbacks() {
+                @Override
+                public void onActivityCreated(@NonNull Activity activity) {
+                    if (isShowing()) {
+                        showWithActivityView(activity, index, false);
+                    }
+                }
+            };
+            UtilsBridge.addActivityLifecycleCallbacks(mActivityLifecycleCallbacks);
+        }
+
+        private void unregisterLifecycleCallback() {
+            UtilsBridge.removeActivityLifecycleCallbacks(mActivityLifecycleCallbacks);
+            mActivityLifecycleCallbacks = null;
+        }
+
+        private boolean isShowing() {
+            return mActivityLifecycleCallbacks != null;
+        }
+    }
+
+    static abstract class AbsToast implements IToast {
+
+        protected Toast      mToast;
+        protected ToastUtils mToastUtils;
+        protected View       mToastView;
+
+        AbsToast(ToastUtils toastUtils) {
+            mToast = new Toast(Utils.getApp());
+            mToastUtils = toastUtils;
+
+            if (mToastUtils.mGravity != -1 || mToastUtils.mXOffset != -1 || mToastUtils.mYOffset != -1) {
+                mToast.setGravity(mToastUtils.mGravity, mToastUtils.mXOffset, mToastUtils.mYOffset);
+            }
+        }
+
+        @Override
+        public void setToastView(View view) {
+            mToastView = view;
+            mToast.setView(mToastView);
+        }
+
+        @Override
+        public void setToastView(CharSequence text) {
+            View utilsToastView = mToastUtils.tryApplyUtilsToastView(text);
+            if (utilsToastView != null) {
+                setToastView(utilsToastView);
+                processRtlIfNeed();
+                return;
+            }
+
+            mToastView = mToast.getView();
+            if (mToastView == null || mToastView.findViewById(android.R.id.message) == null) {
+                setToastView(UtilsBridge.layoutId2View(R.layout.utils_toast_view));
+            }
+
+            TextView messageTv = mToastView.findViewById(android.R.id.message);
+            messageTv.setText(text);
+            if (mToastUtils.mTextColor != COLOR_DEFAULT) {
+                messageTv.setTextColor(mToastUtils.mTextColor);
+            }
+            if (mToastUtils.mTextSize != -1) {
+                messageTv.setTextSize(mToastUtils.mTextSize);
+            }
+            setBg(messageTv);
+            processRtlIfNeed();
+        }
+
+        private void processRtlIfNeed() {
+            if (UtilsBridge.isLayoutRtl()) {
+                setToastView(getToastViewSnapshot(-1));
+            }
+        }
+
+        private void setBg(final TextView msgTv) {
+            if (mToastUtils.mBgResource != -1) {
+                mToastView.setBackgroundResource(mToastUtils.mBgResource);
+                msgTv.setBackgroundColor(Color.TRANSPARENT);
+            } else if (mToastUtils.mBgColor != COLOR_DEFAULT) {
+                Drawable toastBg = mToastView.getBackground();
+                Drawable msgBg = msgTv.getBackground();
+                if (toastBg != null && msgBg != null) {
+                    toastBg.mutate().setColorFilter(new PorterDuffColorFilter(mToastUtils.mBgColor, PorterDuff.Mode.SRC_IN));
+                    msgTv.setBackgroundColor(Color.TRANSPARENT);
+                } else if (toastBg != null) {
+                    toastBg.mutate().setColorFilter(new PorterDuffColorFilter(mToastUtils.mBgColor, PorterDuff.Mode.SRC_IN));
+                } else if (msgBg != null) {
+                    msgBg.mutate().setColorFilter(new PorterDuffColorFilter(mToastUtils.mBgColor, PorterDuff.Mode.SRC_IN));
+                } else {
+                    mToastView.setBackgroundColor(mToastUtils.mBgColor);
+                }
+            }
+        }
+
+        @Override
+        @CallSuper
+        public void cancel() {
+            if (mToast != null) {
+                mToast.cancel();
+            }
+            mToast = null;
+            mToastView = null;
+        }
+
+        View getToastViewSnapshot(final int index) {
+            Bitmap bitmap = UtilsBridge.view2Bitmap(mToastView);
+            ImageView toastIv = new ImageView(Utils.getApp());
+            toastIv.setTag(TAG_TOAST + index);
+            toastIv.setImageBitmap(bitmap);
+            return toastIv;
+        }
+    }
+
+    interface IToast {
+
+        void setToastView(View view);
+
+        void setToastView(CharSequence text);
+
+        void show(int duration);
+
+        void cancel();
+    }
+
+    public static final class UtilsMaxWidthRelativeLayout extends RelativeLayout {
+
+        private static final int SPACING = UtilsBridge.dp2px(80);
+
+        public UtilsMaxWidthRelativeLayout(Context context) {
+            super(context);
+        }
+
+        public UtilsMaxWidthRelativeLayout(Context context, AttributeSet attrs) {
+            super(context, attrs);
+        }
+
+        public UtilsMaxWidthRelativeLayout(Context context, AttributeSet attrs, int defStyleAttr) {
+            super(context, attrs, defStyleAttr);
+        }
+
+        @Override
+        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+            int widthMaxSpec = MeasureSpec.makeMeasureSpec(UtilsBridge.getAppScreenWidth() - SPACING, MeasureSpec.AT_MOST);
+            super.onMeasure(widthMaxSpec, heightMeasureSpec);
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/TouchUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/TouchUtils.java
new file mode 100755
index 0000000000..f0fecdef48
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/TouchUtils.java
@@ -0,0 +1,215 @@
+package com.blankj.utilcode.util;
+
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.View;
+import android.view.ViewConfiguration;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import androidx.annotation.IntDef;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/26
+ *     desc  : utils about touch
+ * </pre>
+ */
+public class TouchUtils {
+
+    public static final int UNKNOWN = 0;
+    public static final int LEFT    = 1;
+    public static final int UP      = 2;
+    public static final int RIGHT   = 4;
+    public static final int DOWN    = 8;
+
+    @IntDef({LEFT, UP, RIGHT, DOWN})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Direction {
+    }
+
+    private TouchUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    public static void setOnTouchListener(final View v, final OnTouchUtilsListener listener) {
+        if (v == null || listener == null) {
+            return;
+        }
+        v.setOnTouchListener(listener);
+    }
+
+    public static abstract class OnTouchUtilsListener implements View.OnTouchListener {
+
+        private static final int STATE_DOWN = 0;
+        private static final int STATE_MOVE = 1;
+        private static final int STATE_STOP = 2;
+
+        private static final int MIN_TAP_TIME = 1000;
+
+        private int touchSlop;
+        private int downX, downY, lastX, lastY;
+        private int             state;
+        private int             direction;
+        private VelocityTracker velocityTracker;
+        private int             maximumFlingVelocity;
+        private int             minimumFlingVelocity;
+
+        public OnTouchUtilsListener() {
+            resetTouch(-1, -1);
+        }
+
+        private void resetTouch(int x, int y) {
+            downX = x;
+            downY = y;
+            lastX = x;
+            lastY = y;
+            state = STATE_DOWN;
+            direction = UNKNOWN;
+            if (velocityTracker != null) {
+                velocityTracker.clear();
+            }
+        }
+
+        public abstract boolean onDown(View view, int x, int y, MotionEvent event);
+
+        public abstract boolean onMove(View view,
+                                       @Direction int direction,
+                                       int x,
+                                       int y,
+                                       int dx,
+                                       int dy,
+                                       int totalX,
+                                       int totalY,
+                                       MotionEvent event);
+
+        public abstract boolean onStop(View view,
+                                       @Direction int direction,
+                                       int x,
+                                       int y,
+                                       int totalX,
+                                       int totalY,
+                                       int vx,
+                                       int vy,
+                                       MotionEvent event);
+
+        @Override
+        public boolean onTouch(View v, MotionEvent event) {
+            if (touchSlop == 0) {
+                touchSlop = ViewConfiguration.get(v.getContext()).getScaledTouchSlop();
+            }
+            if (maximumFlingVelocity == 0) {
+                maximumFlingVelocity =
+                        ViewConfiguration.get(v.getContext()).getScaledMaximumFlingVelocity();
+            }
+            if (minimumFlingVelocity == 0) {
+                minimumFlingVelocity =
+                        ViewConfiguration.get(v.getContext()).getScaledMinimumFlingVelocity();
+            }
+            if (velocityTracker == null) {
+                velocityTracker = VelocityTracker.obtain();
+            }
+            velocityTracker.addMovement(event);
+
+            switch (event.getAction()) {
+                case MotionEvent.ACTION_DOWN:
+                    return onUtilsDown(v, event);
+                case MotionEvent.ACTION_MOVE:
+                    return onUtilsMove(v, event);
+                case MotionEvent.ACTION_UP:
+                case MotionEvent.ACTION_CANCEL:
+                    return onUtilsStop(v, event);
+                default:
+                    break;
+            }
+            return false;
+        }
+
+        public boolean onUtilsDown(View view, MotionEvent event) {
+            int x = (int) event.getRawX();
+            int y = (int) event.getRawY();
+
+            resetTouch(x, y);
+            view.setPressed(true);
+            return onDown(view, x, y, event);
+        }
+
+        public boolean onUtilsMove(View view, MotionEvent event) {
+            int x = (int) event.getRawX();
+            int y = (int) event.getRawY();
+
+            if (downX == -1) {
+                // not receive down should reset
+                resetTouch(x, y);
+                view.setPressed(true);
+            }
+
+            if (state != STATE_MOVE) {
+                if (Math.abs(x - lastX) < touchSlop && Math.abs(y - lastY) < touchSlop) {
+                    return true;
+                }
+                state = STATE_MOVE;
+                if (Math.abs(x - lastX) >= Math.abs(y - lastY)) {
+                    if (x - lastX < 0) {
+                        direction = LEFT;
+                    } else {
+                        direction = RIGHT;
+                    }
+                } else {
+                    if (y - lastY < 0) {
+                        direction = UP;
+                    } else {
+                        direction = DOWN;
+                    }
+                }
+            }
+
+            boolean consumeMove =
+                    onMove(view, direction, x, y, x - lastX, y - lastY, x - downX, y - downY, event);
+            lastX = x;
+            lastY = y;
+            return consumeMove;
+        }
+
+        public boolean onUtilsStop(View view, MotionEvent event) {
+            int x = (int) event.getRawX();
+            int y = (int) event.getRawY();
+
+            int vx = 0, vy = 0;
+
+            if (velocityTracker != null) {
+                velocityTracker.computeCurrentVelocity(1000, maximumFlingVelocity);
+                vx = (int) velocityTracker.getXVelocity();
+                vy = (int) velocityTracker.getYVelocity();
+                velocityTracker.recycle();
+                if (Math.abs(vx) < minimumFlingVelocity) {
+                    vx = 0;
+                }
+                if (Math.abs(vy) < minimumFlingVelocity) {
+                    vy = 0;
+                }
+                velocityTracker = null;
+            }
+
+            view.setPressed(false);
+            boolean consumeStop = onStop(view, direction, x, y, x - downX, y - downY, vx, vy, event);
+
+            if (event.getAction() == MotionEvent.ACTION_UP) {
+                if (state == STATE_DOWN) {
+                    if (event.getEventTime() - event.getDownTime() <= MIN_TAP_TIME) {
+                        view.performClick();
+                    } else {
+                        view.performLongClick();
+                    }
+                }
+            }
+
+            resetTouch(-1, -1);
+
+            return consumeStop;
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UiMessageUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UiMessageUtils.java
new file mode 100644
index 0000000000..6a3f32d233
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UiMessageUtils.java
@@ -0,0 +1,275 @@
+package com.blankj.utilcode.util;
+
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.util.Log;
+import android.util.SparseArray;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/20
+ *     desc  : utils about ui message can replace LocalBroadcastManager
+ * </pre>
+ */
+public final class UiMessageUtils implements Handler.Callback {
+
+    private static final String  TAG   = "UiMessageUtils";
+    private static final boolean DEBUG = UtilsBridge.isAppDebug();
+
+    private final Handler   mHandler = new Handler(Looper.getMainLooper(), this);
+    private final UiMessage mMessage = new UiMessage(null);
+
+    private final SparseArray<List<UiMessageCallback>> mListenersSpecific  = new SparseArray<>();
+    private final List<UiMessageCallback>              mListenersUniversal = new ArrayList<>();
+    private final List<UiMessageCallback>              mDefensiveCopyList  = new ArrayList<>();
+
+    public static UiMessageUtils getInstance() {
+        return LazyHolder.INSTANCE;
+    }
+
+    private UiMessageUtils() {
+    }
+
+    /**
+     * Sends an empty Message containing only the message ID.
+     *
+     * @param id The message ID.
+     */
+    public final void send(final int id) {
+        mHandler.sendEmptyMessage(id);
+    }
+
+    /**
+     * Sends a message containing the ID and an arbitrary object.
+     *
+     * @param id  The message ID.
+     * @param obj The object.
+     */
+    public final void send(final int id, @NonNull final Object obj) {
+        mHandler.sendMessage(mHandler.obtainMessage(id, obj));
+    }
+
+    /**
+     * Add listener for specific type of message by its ID.
+     * Don't forget to call {@link #removeListener(UiMessageCallback)} or
+     * {@link #removeListeners(int)}
+     *
+     * @param id       The ID of message that will be only notified to listener.
+     * @param listener The listener.
+     */
+    public void addListener(int id, @NonNull final UiMessageCallback listener) {
+        synchronized (mListenersSpecific) {
+            List<UiMessageCallback> idListeners = mListenersSpecific.get(id);
+            if (idListeners == null) {
+                idListeners = new ArrayList<>();
+                mListenersSpecific.put(id, idListeners);
+            }
+            if (!idListeners.contains(listener)) {
+                idListeners.add(listener);
+            }
+        }
+    }
+
+    /**
+     * Add listener for all messages.
+     *
+     * @param listener The listener.
+     */
+    public void addListener(@NonNull final UiMessageCallback listener) {
+        synchronized (mListenersUniversal) {
+            if (!mListenersUniversal.contains(listener)) {
+                mListenersUniversal.add(listener);
+            } else {
+                if (DEBUG) {
+                    Log.w(TAG, "Listener is already added. " + listener.toString());
+                }
+            }
+        }
+    }
+
+    /**
+     * Remove listener for all messages.
+     *
+     * @param listener The listener to remove.
+     */
+    public void removeListener(@NonNull final UiMessageCallback listener) {
+        synchronized (mListenersUniversal) {
+            if (DEBUG && !mListenersUniversal.contains(listener)) {
+                Log.w(TAG, "Trying to remove a listener that is not registered. " + listener.toString());
+            }
+            mListenersUniversal.remove(listener);
+        }
+    }
+
+    /**
+     * Remove all listeners for desired message ID.
+     *
+     * @param id The id of the message to stop listening to.
+     */
+    public void removeListeners(final int id) {
+        if (DEBUG) {
+            final List<UiMessageCallback> callbacks = mListenersSpecific.get(id);
+            if (callbacks == null || callbacks.size() == 0) {
+                Log.w(TAG, "Trying to remove specific listeners that are not registered. ID " + id);
+            }
+        }
+        synchronized (mListenersSpecific) {
+            mListenersSpecific.delete(id);
+        }
+    }
+
+    /**
+     * Remove the specific listener for desired message ID.
+     *
+     * @param id       The id of the message to stop listening to.
+     * @param listener The listener which should be removed.
+     */
+    public void removeListener(final int id, @NonNull final UiMessageCallback listener) {
+        synchronized (mListenersSpecific) {
+            final List<UiMessageCallback> callbacks = this.mListenersSpecific.get(id);
+            if (callbacks != null && !callbacks.isEmpty()) {
+                if (DEBUG) {
+                    if (!callbacks.contains(listener)) {
+                        Log.w(TAG, "Trying to remove specific listener that is not registered. ID " + id + ", " + listener);
+                        return;
+                    }
+                }
+                callbacks.remove(listener);
+            } else {
+                if (DEBUG) {
+                    Log.w(TAG, "Trying to remove specific listener that is not registered. ID " + id + ", " + listener);
+                }
+            }
+        }
+    }
+
+    @Override
+    public boolean handleMessage(Message msg) {
+        mMessage.setMessage(msg);
+        if (DEBUG) {
+            logMessageHandling(mMessage);
+        }
+
+        // process listeners for specified type of message what
+        synchronized (mListenersSpecific) {
+            final List<UiMessageCallback> idListeners = mListenersSpecific.get(msg.what);
+            if (idListeners != null) {
+                if (idListeners.size() == 0) {
+                    mListenersSpecific.remove(msg.what);
+                } else {
+                    mDefensiveCopyList.addAll(idListeners);
+                    for (final UiMessageCallback callback : mDefensiveCopyList) {
+                        callback.handleMessage(mMessage);
+                    }
+                    mDefensiveCopyList.clear();
+                }
+            }
+        }
+
+        // process universal listeners
+        synchronized (mListenersUniversal) {
+            if (mListenersUniversal.size() > 0) {
+                mDefensiveCopyList.addAll(mListenersUniversal);
+                for (final UiMessageCallback callback : mDefensiveCopyList) {
+                    callback.handleMessage(mMessage);
+                }
+                mDefensiveCopyList.clear();
+            }
+        }
+
+        mMessage.setMessage(null);
+
+        return true;
+    }
+
+    private void logMessageHandling(@NonNull final UiMessage msg) {
+        final List<UiMessageCallback> idListeners = mListenersSpecific.get(msg.getId());
+
+        if ((idListeners == null || idListeners.size() == 0) && mListenersUniversal.size() == 0) {
+            Log.w(TAG, "Delivering FAILED for message ID " + msg.getId() + ". No listeners. " + msg.toString());
+        } else {
+            final StringBuilder stringBuilder = new StringBuilder();
+            stringBuilder.append("Delivering message ID ");
+            stringBuilder.append(msg.getId());
+            stringBuilder.append(", Specific listeners: ");
+            if (idListeners == null || idListeners.size() == 0) {
+                stringBuilder.append(0);
+            } else {
+                stringBuilder.append(idListeners.size());
+                stringBuilder.append(" [");
+                for (int i = 0; i < idListeners.size(); i++) {
+                    stringBuilder.append(idListeners.get(i).getClass().getSimpleName());
+                    if (i < idListeners.size() - 1) {
+                        stringBuilder.append(",");
+                    }
+                }
+                stringBuilder.append("]");
+            }
+
+            stringBuilder.append(", Universal listeners: ");
+            synchronized (mListenersUniversal) {
+                if (mListenersUniversal.size() == 0) {
+                    stringBuilder.append(0);
+                } else {
+                    stringBuilder.append(mListenersUniversal.size());
+                    stringBuilder.append(" [");
+                    for (int i = 0; i < mListenersUniversal.size(); i++) {
+                        stringBuilder.append(mListenersUniversal.get(i).getClass().getSimpleName());
+                        if (i < mListenersUniversal.size() - 1) {
+                            stringBuilder.append(",");
+                        }
+                    }
+                    stringBuilder.append("], Message: ");
+                }
+            }
+            stringBuilder.append(msg.toString());
+
+            Log.v(TAG, stringBuilder.toString());
+        }
+    }
+
+    public static final class UiMessage {
+
+        private Message mMessage;
+
+        private UiMessage(final Message message) {
+            this.mMessage = message;
+        }
+
+        private void setMessage(final Message message) {
+            mMessage = message;
+        }
+
+        public int getId() {
+            return mMessage.what;
+        }
+
+        public Object getObject() {
+            return mMessage.obj;
+        }
+
+        @Override
+        public String toString() {
+            return "{ " +
+                    "id=" + getId() +
+                    ", obj=" + getObject() +
+                    " }";
+        }
+    }
+
+    public interface UiMessageCallback {
+        void handleMessage(@NonNull UiMessage localMessage);
+    }
+
+    private static final class LazyHolder {
+        private static final UiMessageUtils INSTANCE = new UiMessageUtils();
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java
new file mode 100644
index 0000000000..c22d1bba38
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java
@@ -0,0 +1,367 @@
+package com.blankj.utilcode.util;
+
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Environment;
+import android.os.storage.StorageManager;
+import android.provider.DocumentsContract;
+import android.provider.MediaStore;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Array;
+import java.lang.reflect.Method;
+
+import androidx.core.content.FileProvider;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/04/20
+ *     desc  : utils about uri
+ * </pre>
+ */
+public final class UriUtils {
+
+    private UriUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Resource to uri.
+     * <p>res2Uri([res type]/[res name]) -> res2Uri(drawable/icon), res2Uri(raw/icon)</p>
+     * <p>res2Uri([resource_id]) -> res2Uri(R.drawable.icon)</p>
+     *
+     * @param resPath The path of res.
+     * @return uri
+     */
+    public static Uri res2Uri(String resPath) {
+        return Uri.parse("android.resource://" + Utils.getApp().getPackageName() + "/" + resPath);
+    }
+
+    /**
+     * File to uri.
+     *
+     * @param file The file.
+     * @return uri
+     */
+    public static Uri file2Uri(final File file) {
+        if (!UtilsBridge.isFileExists(file)) return null;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            String authority = Utils.getApp().getPackageName() + ".utilcode.fileprovider";
+            return FileProvider.getUriForFile(Utils.getApp(), authority, file);
+        } else {
+            return Uri.fromFile(file);
+        }
+    }
+
+    /**
+     * Uri to file.
+     *
+     * @param uri The uri.
+     * @return file
+     */
+    public static File uri2File(final Uri uri) {
+        if (uri == null) return null;
+        File file = uri2FileReal(uri);
+        if (file != null) return file;
+        return copyUri2Cache(uri);
+    }
+
+    /**
+     * Uri to file, without creating the cache copy if the path cannot be resolved.
+     *
+     * @param uri The uri.
+     * @return file
+     */
+    public static File uri2FileNoCacheCopy(final Uri uri) {
+        if (uri == null) return null;
+        return uri2FileReal(uri);
+    }
+    
+    /**
+     * Uri to file.
+     *
+     * @param uri The uri.
+     * @return file
+     */
+    private static File uri2FileReal(final Uri uri) {
+        Log.d("UriUtils", uri.toString());
+        String authority = uri.getAuthority();
+        String scheme = uri.getScheme();
+        String path = uri.getPath();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && path != null) {
+            String[] externals = new String[]{"/external/", "/external_path/"};
+            File file = null;
+            for (String external : externals) {
+                if (path.startsWith(external)) {
+                    file = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
+                            + path.replace(external, "/"));
+                    if (file.exists()) {
+                        Log.d("UriUtils", uri.toString() + " -> " + external);
+                        return file;
+                    }
+                }
+            }
+            file = null;
+            if (path.startsWith("/files_path/")) {
+                file = new File(Utils.getApp().getFilesDir().getAbsolutePath()
+                        + path.replace("/files_path/", "/"));
+            } else if (path.startsWith("/cache_path/")) {
+                file = new File(Utils.getApp().getCacheDir().getAbsolutePath()
+                        + path.replace("/cache_path/", "/"));
+            } else if (path.startsWith("/external_files_path/")) {
+                file = new File(Utils.getApp().getExternalFilesDir(null).getAbsolutePath()
+                        + path.replace("/external_files_path/", "/"));
+            } else if (path.startsWith("/external_cache_path/")) {
+                file = new File(Utils.getApp().getExternalCacheDir().getAbsolutePath()
+                        + path.replace("/external_cache_path/", "/"));
+            }
+            if (file != null && file.exists()) {
+                Log.d("UriUtils", uri.toString() + " -> " + path);
+                return file;
+            }
+        }
+        if (ContentResolver.SCHEME_FILE.equals(scheme)) {
+            if (path != null) return new File(path);
+            Log.d("UriUtils", uri.toString() + " parse failed. -> 0");
+            return null;
+        }// end 0
+        else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT
+                && DocumentsContract.isDocumentUri(Utils.getApp(), uri)) {
+            if ("com.android.externalstorage.documents".equals(authority)) {
+                final String docId = DocumentsContract.getDocumentId(uri);
+                final String[] split = docId.split(":");
+                final String type = split[0];
+                if ("primary".equalsIgnoreCase(type)) {
+                    return new File(Environment.getExternalStorageDirectory() + "/" + split[1]);
+                } else {
+                    // Below logic is how External Storage provider build URI for documents
+                    // http://stackoverflow.com/questions/28605278/android-5-sd-card-label
+                    StorageManager mStorageManager = (StorageManager) Utils.getApp().getSystemService(Context.STORAGE_SERVICE);
+                    try {
+                        Class<?> storageVolumeClazz = Class.forName("android.os.storage.StorageVolume");
+                        Method getVolumeList = mStorageManager.getClass().getMethod("getVolumeList");
+                        Method getUuid = storageVolumeClazz.getMethod("getUuid");
+                        Method getState = storageVolumeClazz.getMethod("getState");
+                        Method getPath = storageVolumeClazz.getMethod("getPath");
+                        Method isPrimary = storageVolumeClazz.getMethod("isPrimary");
+                        Method isEmulated = storageVolumeClazz.getMethod("isEmulated");
+
+                        Object result = getVolumeList.invoke(mStorageManager);
+
+                        final int length = Array.getLength(result);
+                        for (int i = 0; i < length; i++) {
+                            Object storageVolumeElement = Array.get(result, i);
+                            //String uuid = (String) getUuid.invoke(storageVolumeElement);
+
+                            final boolean mounted = Environment.MEDIA_MOUNTED.equals(getState.invoke(storageVolumeElement))
+                                    || Environment.MEDIA_MOUNTED_READ_ONLY.equals(getState.invoke(storageVolumeElement));
+
+                            //if the media is not mounted, we need not get the volume details
+                            if (!mounted) continue;
+
+                            //Primary storage is already handled.
+                            if ((Boolean) isPrimary.invoke(storageVolumeElement)
+                                    && (Boolean) isEmulated.invoke(storageVolumeElement)) {
+                                continue;
+                            }
+
+                            String uuid = (String) getUuid.invoke(storageVolumeElement);
+
+                            if (uuid != null && uuid.equals(type)) {
+                                return new File(getPath.invoke(storageVolumeElement) + "/" + split[1]);
+                            }
+                        }
+                    } catch (Exception ex) {
+                        Log.d("UriUtils", uri.toString() + " parse failed. " + ex.toString() + " -> 1_0");
+                    }
+                }
+                Log.d("UriUtils", uri.toString() + " parse failed. -> 1_0");
+                return null;
+            }// end 1_0
+            else if ("com.android.providers.downloads.documents".equals(authority)) {
+                String id = DocumentsContract.getDocumentId(uri);
+                if (TextUtils.isEmpty(id)) {
+                    Log.d("UriUtils", uri.toString() + " parse failed(id is null). -> 1_1");
+                    return null;
+                }
+                if (id.startsWith("raw:")) {
+                    return new File(id.substring(4));
+                } else if (id.startsWith("msf:")) {
+                    id = id.split(":")[1];
+                }
+
+                long availableId = 0;
+                try {
+                    availableId = Long.parseLong(id);
+                } catch (Exception e) {
+                    return null;
+                }
+
+                String[] contentUriPrefixesToTry = new String[]{
+                        "content://downloads/public_downloads",
+                        "content://downloads/all_downloads",
+                        "content://downloads/my_downloads"
+                };
+
+                for (String contentUriPrefix : contentUriPrefixesToTry) {
+                    Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), availableId);
+                    try {
+                        File file = getFileFromUri(contentUri, "1_1");
+                        if (file != null) {
+                            return file;
+                        }
+                    } catch (Exception ignore) {
+                    }
+                }
+
+                Log.d("UriUtils", uri.toString() + " parse failed. -> 1_1");
+                return null;
+            }// end 1_1
+            else if ("com.android.providers.media.documents".equals(authority)) {
+                final String docId = DocumentsContract.getDocumentId(uri);
+                final String[] split = docId.split(":");
+                final String type = split[0];
+                Uri contentUri;
+                if ("image".equals(type)) {
+                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
+                } else if ("video".equals(type)) {
+                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
+                } else if ("audio".equals(type)) {
+                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
+                } else {
+                    Log.d("UriUtils", uri.toString() + " parse failed. -> 1_2");
+                    return null;
+                }
+                final String selection = "_id=?";
+                final String[] selectionArgs = new String[]{split[1]};
+                return getFileFromUri(contentUri, selection, selectionArgs, "1_2");
+            }// end 1_2
+            else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {
+                return getFileFromUri(uri, "1_3");
+            }// end 1_3
+            else {
+                Log.d("UriUtils", uri.toString() + " parse failed. -> 1_4");
+                return null;
+            }// end 1_4
+        }// end 1
+        else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {
+            return getFileFromUri(uri, "2");
+        }// end 2
+        else {
+            Log.d("UriUtils", uri.toString() + " parse failed. -> 3");
+            return null;
+        }// end 3
+    }
+
+    private static File getFileFromUri(final Uri uri, final String code) {
+        return getFileFromUri(uri, null, null, code);
+    }
+
+    private static File getFileFromUri(final Uri uri,
+                                       final String selection,
+                                       final String[] selectionArgs,
+                                       final String code) {
+        if ("com.google.android.apps.photos.content".equals(uri.getAuthority())) {
+            if (!TextUtils.isEmpty(uri.getLastPathSegment())) {
+                return new File(uri.getLastPathSegment());
+            }
+        } else if ("com.tencent.mtt.fileprovider".equals(uri.getAuthority())) {
+            String path = uri.getPath();
+            if (!TextUtils.isEmpty(path)) {
+                File fileDir = Environment.getExternalStorageDirectory();
+                return new File(fileDir, path.substring("/QQBrowser".length(), path.length()));
+            }
+        } else if ("com.huawei.hidisk.fileprovider".equals(uri.getAuthority())) {
+            String path = uri.getPath();
+            if (!TextUtils.isEmpty(path)) {
+                return new File(path.replace("/root", ""));
+            }
+        }
+
+        final Cursor cursor = Utils.getApp().getContentResolver().query(
+                uri, new String[]{"_data"}, selection, selectionArgs, null);
+        if (cursor == null) {
+            Log.d("UriUtils", uri.toString() + " parse failed(cursor is null). -> " + code);
+            return null;
+        }
+        try {
+            if (cursor.moveToFirst()) {
+                final int columnIndex = cursor.getColumnIndex("_data");
+                if (columnIndex > -1) {
+                    return new File(cursor.getString(columnIndex));
+                } else {
+                    Log.d("UriUtils", uri.toString() + " parse failed(columnIndex: " + columnIndex + " is wrong). -> " + code);
+                    return null;
+                }
+            } else {
+                Log.d("UriUtils", uri.toString() + " parse failed(moveToFirst return false). -> " + code);
+                return null;
+            }
+        } catch (Exception e) {
+            Log.d("UriUtils", uri.toString() + " parse failed. -> " + code);
+            return null;
+        } finally {
+            cursor.close();
+        }
+    }
+
+    private static File copyUri2Cache(Uri uri) {
+        Log.d("UriUtils", "copyUri2Cache() called");
+        InputStream is = null;
+        try {
+            is = Utils.getApp().getContentResolver().openInputStream(uri);
+            File file = new File(Utils.getApp().getCacheDir(), "" + System.currentTimeMillis());
+            UtilsBridge.writeFileFromIS(file.getAbsolutePath(), is);
+            return file;
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            return null;
+        } finally {
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * uri to input stream.
+     *
+     * @param uri The uri.
+     * @return the input stream
+     */
+    public static byte[] uri2Bytes(Uri uri) {
+        if (uri == null) return null;
+        InputStream is = null;
+        try {
+            is = Utils.getApp().getContentResolver().openInputStream(uri);
+            return UtilsBridge.inputStream2Bytes(is);
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            Log.d("UriUtils", "uri to bytes failed.");
+            return null;
+        } finally {
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/Utils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/Utils.java
new file mode 100644
index 0000000000..088c823ddb
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/Utils.java
@@ -0,0 +1,131 @@
+package com.blankj.utilcode.util;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.app.Application;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.Lifecycle;
+
+/**
+ * <pre>
+ *     author:
+ *                                      ___           ___           ___         ___
+ *         _____                       /  /\         /__/\         /__/|       /  /\
+ *        /  /::\                     /  /::\        \  \:\       |  |:|      /  /:/
+ *       /  /:/\:\    ___     ___    /  /:/\:\        \  \:\      |  |:|     /__/::\
+ *      /  /:/~/::\  /__/\   /  /\  /  /:/~/::\   _____\__\:\   __|  |:|     \__\/\:\
+ *     /__/:/ /:/\:| \  \:\ /  /:/ /__/:/ /:/\:\ /__/::::::::\ /__/\_|:|____    \  \:\
+ *     \  \:\/:/~/:/  \  \:\  /:/  \  \:\/:/__\/ \  \:\~~\~~\/ \  \:\/:::::/     \__\:\
+ *      \  \::/ /:/    \  \:\/:/    \  \::/       \  \:\  ~~~   \  \::/~~~~      /  /:/
+ *       \  \:\/:/      \  \::/      \  \:\        \  \:\        \  \:\         /__/:/
+ *        \  \::/        \__\/        \  \:\        \  \:\        \  \:\        \__\/
+ *         \__\/                       \__\/         \__\/         \__\/
+ *     blog  : http://blankj.com
+ *     time  : 16/12/08
+ *     desc  : utils about initialization
+ * </pre>
+ */
+public final class Utils {
+
+    @SuppressLint("StaticFieldLeak")
+    private static Application sApp;
+
+    private Utils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Init utils.
+     * <p>Init it in the class of UtilsFileProvider.</p>
+     *
+     * @param app application
+     */
+    public static void init(final Application app) {
+        if (app == null) {
+            Log.e("Utils", "app is null.");
+            return;
+        }
+        if (sApp == null) {
+            sApp = app;
+            UtilsBridge.init(sApp);
+            UtilsBridge.preLoad();
+            return;
+        }
+        if (sApp.equals(app)) return;
+        UtilsBridge.unInit(sApp);
+        sApp = app;
+        UtilsBridge.init(sApp);
+    }
+
+    /**
+     * Return the Application object.
+     * <p>Main process get app by UtilsFileProvider,
+     * and other process get app by reflect.</p>
+     *
+     * @return the Application object
+     */
+    public static Application getApp() {
+        if (sApp != null) return sApp;
+        init(UtilsBridge.getApplicationByReflect());
+        if (sApp == null) throw new NullPointerException("reflect failed.");
+        Log.i("Utils", UtilsBridge.getCurrentProcessName() + " reflect app success.");
+        return sApp;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // interface
+    ///////////////////////////////////////////////////////////////////////////
+
+    public abstract static class Task<Result> extends ThreadUtils.SimpleTask<Result> {
+
+        private Consumer<Result> mConsumer;
+
+        public Task(final Consumer<Result> consumer) {
+            mConsumer = consumer;
+        }
+
+        @Override
+        public void onSuccess(Result result) {
+            if (mConsumer != null) {
+                mConsumer.accept(result);
+            }
+        }
+    }
+
+    public interface OnAppStatusChangedListener {
+        void onForeground(Activity activity);
+
+        void onBackground(Activity activity);
+    }
+
+    public static class ActivityLifecycleCallbacks {
+
+        public void onActivityCreated(@NonNull Activity activity) {/**/}
+
+        public void onActivityStarted(@NonNull Activity activity) {/**/}
+
+        public void onActivityResumed(@NonNull Activity activity) {/**/}
+
+        public void onActivityPaused(@NonNull Activity activity) {/**/}
+
+        public void onActivityStopped(@NonNull Activity activity) {/**/}
+
+        public void onActivityDestroyed(@NonNull Activity activity) {/**/}
+
+        public void onLifecycleChanged(@NonNull Activity activity, Lifecycle.Event event) {/**/}
+    }
+
+    public interface Consumer<T> {
+        void accept(T t);
+    }
+
+    public interface Supplier<T> {
+        T get();
+    }
+
+    public interface Func1<Ret, Par> {
+        Ret call(Par param);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsActivityLifecycleImpl.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsActivityLifecycleImpl.java
new file mode 100644
index 0000000000..c6a34ae58f
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsActivityLifecycleImpl.java
@@ -0,0 +1,450 @@
+package com.blankj.utilcode.util;
+
+import android.animation.ValueAnimator;
+import android.app.Activity;
+import android.app.Application;
+import android.os.Build;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Window;
+import android.view.WindowManager;
+
+import java.lang.reflect.Field;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.Lifecycle;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/19
+ *     desc  :
+ * </pre>
+ */
+final class UtilsActivityLifecycleImpl implements Application.ActivityLifecycleCallbacks {
+
+    static final UtilsActivityLifecycleImpl INSTANCE = new UtilsActivityLifecycleImpl();
+
+    private final LinkedList<Activity> mActivityList = new LinkedList<>();
+
+    private final List<Utils.OnAppStatusChangedListener>                mStatusListeners               = new CopyOnWriteArrayList<>();
+    private final Map<Activity, List<Utils.ActivityLifecycleCallbacks>> mActivityLifecycleCallbacksMap = new ConcurrentHashMap<>();
+
+    private static final Activity STUB = new Activity();
+
+    private int     mForegroundCount = 0;
+    private int     mConfigCount     = 0;
+    private boolean mIsBackground    = false;
+
+    void init(Application app) {
+        app.registerActivityLifecycleCallbacks(this);
+    }
+
+    void unInit(Application app) {
+        mActivityList.clear();
+        app.unregisterActivityLifecycleCallbacks(this);
+    }
+
+    Activity getTopActivity() {
+        List<Activity> activityList = getActivityList();
+        for (Activity activity : activityList) {
+            if (!UtilsBridge.isActivityAlive(activity)) {
+                continue;
+            }
+            return activity;
+        }
+        return null;
+    }
+
+    List<Activity> getActivityList() {
+        if (!mActivityList.isEmpty()) {
+            return new LinkedList<>(mActivityList);
+        }
+        List<Activity> reflectActivities = getActivitiesByReflect();
+        mActivityList.addAll(reflectActivities);
+        return new LinkedList<>(mActivityList);
+    }
+
+    void addOnAppStatusChangedListener(final Utils.OnAppStatusChangedListener listener) {
+        mStatusListeners.add(listener);
+    }
+
+    void removeOnAppStatusChangedListener(final Utils.OnAppStatusChangedListener listener) {
+        mStatusListeners.remove(listener);
+    }
+
+    void addActivityLifecycleCallbacks(final Utils.ActivityLifecycleCallbacks listener) {
+        addActivityLifecycleCallbacks(STUB, listener);
+    }
+
+    void addActivityLifecycleCallbacks(final Activity activity,
+                                       final Utils.ActivityLifecycleCallbacks listener) {
+        if (activity == null || listener == null) return;
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                addActivityLifecycleCallbacksInner(activity, listener);
+            }
+        });
+    }
+
+    boolean isAppForeground() {
+        return !mIsBackground;
+    }
+
+    private void addActivityLifecycleCallbacksInner(final Activity activity,
+                                                    final Utils.ActivityLifecycleCallbacks callbacks) {
+        List<Utils.ActivityLifecycleCallbacks> callbacksList = mActivityLifecycleCallbacksMap.get(activity);
+        if (callbacksList == null) {
+            callbacksList = new CopyOnWriteArrayList<>();
+            mActivityLifecycleCallbacksMap.put(activity, callbacksList);
+        } else {
+            if (callbacksList.contains(callbacks)) return;
+        }
+        callbacksList.add(callbacks);
+    }
+
+    void removeActivityLifecycleCallbacks(final Utils.ActivityLifecycleCallbacks callbacks) {
+        removeActivityLifecycleCallbacks(STUB, callbacks);
+    }
+
+    void removeActivityLifecycleCallbacks(final Activity activity) {
+        if (activity == null) return;
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                mActivityLifecycleCallbacksMap.remove(activity);
+            }
+        });
+    }
+
+    void removeActivityLifecycleCallbacks(final Activity activity,
+                                          final Utils.ActivityLifecycleCallbacks callbacks) {
+        if (activity == null || callbacks == null) return;
+        UtilsBridge.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                removeActivityLifecycleCallbacksInner(activity, callbacks);
+            }
+        });
+    }
+
+    private void removeActivityLifecycleCallbacksInner(final Activity activity,
+                                                       final Utils.ActivityLifecycleCallbacks callbacks) {
+        List<Utils.ActivityLifecycleCallbacks> callbacksList = mActivityLifecycleCallbacksMap.get(activity);
+        if (callbacksList != null && !callbacksList.isEmpty()) {
+            callbacksList.remove(callbacks);
+        }
+    }
+
+    private void consumeActivityLifecycleCallbacks(Activity activity, Lifecycle.Event event) {
+        consumeLifecycle(activity, event, mActivityLifecycleCallbacksMap.get(activity));
+        consumeLifecycle(activity, event, mActivityLifecycleCallbacksMap.get(STUB));
+    }
+
+    private void consumeLifecycle(Activity activity, Lifecycle.Event event, List<Utils.ActivityLifecycleCallbacks> listeners) {
+        if (listeners == null) return;
+        for (Utils.ActivityLifecycleCallbacks listener : listeners) {
+            listener.onLifecycleChanged(activity, event);
+            if (event.equals(Lifecycle.Event.ON_CREATE)) {
+                listener.onActivityCreated(activity);
+            } else if (event.equals(Lifecycle.Event.ON_START)) {
+                listener.onActivityStarted(activity);
+            } else if (event.equals(Lifecycle.Event.ON_RESUME)) {
+                listener.onActivityResumed(activity);
+            } else if (event.equals(Lifecycle.Event.ON_PAUSE)) {
+                listener.onActivityPaused(activity);
+            } else if (event.equals(Lifecycle.Event.ON_STOP)) {
+                listener.onActivityStopped(activity);
+            } else if (event.equals(Lifecycle.Event.ON_DESTROY)) {
+                listener.onActivityDestroyed(activity);
+            }
+        }
+        if (event.equals(Lifecycle.Event.ON_DESTROY)) {
+            mActivityLifecycleCallbacksMap.remove(activity);
+        }
+    }
+
+    Application getApplicationByReflect() {
+        try {
+            Class activityThreadClass = Class.forName("android.app.ActivityThread");
+            Object thread = getActivityThread();
+            if (thread == null) return null;
+            Object app = activityThreadClass.getMethod("getApplication").invoke(thread);
+            if (app == null) return null;
+            return (Application) app;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // lifecycle start
+    ///////////////////////////////////////////////////////////////////////////
+    @Override
+    public void onActivityPreCreated(@NonNull Activity activity, @Nullable Bundle savedInstanceState) {/**/}
+
+    @Override
+    public void onActivityCreated(@NonNull Activity activity, Bundle savedInstanceState) {
+        if (mActivityList.size() == 0) {
+            postStatus(activity, true);
+        }
+        LanguageUtils.applyLanguage(activity);
+        setAnimatorsEnabled();
+        setTopActivity(activity);
+        consumeActivityLifecycleCallbacks(activity, Lifecycle.Event.ON_CREATE);
+    }
+
+    @Override
+    public void onActivityPostCreated(@NonNull Activity activity, @Nullable Bundle savedInstanceState) {/**/}
+
+    @Override
+    public void onActivityPreStarted(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityStarted(@NonNull Activity activity) {
+        if (!mIsBackground) {
+            setTopActivity(activity);
+        }
+        if (mConfigCount < 0) {
+            ++mConfigCount;
+        } else {
+            ++mForegroundCount;
+        }
+        consumeActivityLifecycleCallbacks(activity, Lifecycle.Event.ON_START);
+    }
+
+    @Override
+    public void onActivityPostStarted(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityPreResumed(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityResumed(@NonNull final Activity activity) {
+        setTopActivity(activity);
+        if (mIsBackground) {
+            mIsBackground = false;
+            postStatus(activity, true);
+        }
+        processHideSoftInputOnActivityDestroy(activity, false);
+        consumeActivityLifecycleCallbacks(activity, Lifecycle.Event.ON_RESUME);
+    }
+
+    @Override
+    public void onActivityPostResumed(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityPrePaused(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityPaused(@NonNull Activity activity) {
+        consumeActivityLifecycleCallbacks(activity, Lifecycle.Event.ON_PAUSE);
+    }
+
+    @Override
+    public void onActivityPostPaused(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityPreStopped(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityStopped(Activity activity) {
+        if (activity.isChangingConfigurations()) {
+            --mConfigCount;
+        } else {
+            --mForegroundCount;
+            if (mForegroundCount <= 0) {
+                mIsBackground = true;
+                postStatus(activity, false);
+            }
+        }
+        processHideSoftInputOnActivityDestroy(activity, true);
+        consumeActivityLifecycleCallbacks(activity, Lifecycle.Event.ON_STOP);
+    }
+
+    @Override
+    public void onActivityPostStopped(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityPreSaveInstanceState(@NonNull Activity activity, @NonNull Bundle outState) {/**/}
+
+    @Override
+    public void onActivitySaveInstanceState(@NonNull Activity activity, @NonNull Bundle outState) {/**/}
+
+    @Override
+    public void onActivityPostSaveInstanceState(@NonNull Activity activity, @NonNull Bundle outState) {/**/}
+
+    @Override
+    public void onActivityPreDestroyed(@NonNull Activity activity) {/**/}
+
+    @Override
+    public void onActivityDestroyed(@NonNull Activity activity) {
+        mActivityList.remove(activity);
+        UtilsBridge.fixSoftInputLeaks(activity);
+        consumeActivityLifecycleCallbacks(activity, Lifecycle.Event.ON_DESTROY);
+    }
+
+    @Override
+    public void onActivityPostDestroyed(@NonNull Activity activity) {/**/}
+    ///////////////////////////////////////////////////////////////////////////
+    // lifecycle end
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     * To solve close keyboard when activity onDestroy.
+     * The preActivity set windowSoftInputMode will prevent
+     * the keyboard from closing when curActivity onDestroy.
+     */
+    private void processHideSoftInputOnActivityDestroy(final Activity activity, boolean isSave) {
+        try {
+            if (isSave) {
+                Window window = activity.getWindow();
+                final WindowManager.LayoutParams attrs = window.getAttributes();
+                final int softInputMode = attrs.softInputMode;
+                window.getDecorView().setTag(-123, softInputMode);
+                window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
+            } else {
+                final Object tag = activity.getWindow().getDecorView().getTag(-123);
+                if (!(tag instanceof Integer)) return;
+                UtilsBridge.runOnUiThreadDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        try {
+                            Window window = activity.getWindow();
+                            if (window != null) {
+                                window.setSoftInputMode(((Integer) tag));
+                            }
+                        } catch (Exception ignore) {
+                        }
+                    }
+                }, 100);
+            }
+        } catch (Exception ignore) {
+        }
+    }
+
+    private void postStatus(final Activity activity, final boolean isForeground) {
+        if (mStatusListeners.isEmpty()) return;
+        for (Utils.OnAppStatusChangedListener statusListener : mStatusListeners) {
+            if (isForeground) {
+                statusListener.onForeground(activity);
+            } else {
+                statusListener.onBackground(activity);
+            }
+        }
+    }
+
+    private void setTopActivity(final Activity activity) {
+        if (mActivityList.contains(activity)) {
+            if (!mActivityList.getFirst().equals(activity)) {
+                mActivityList.remove(activity);
+                mActivityList.addFirst(activity);
+            }
+        } else {
+            mActivityList.addFirst(activity);
+        }
+    }
+
+    /**
+     * @return the activities which topActivity is first position
+     */
+    private List<Activity> getActivitiesByReflect() {
+        LinkedList<Activity> list = new LinkedList<>();
+        Activity topActivity = null;
+        try {
+            Object activityThread = getActivityThread();
+            if (activityThread == null) return list;
+            Field mActivitiesField = activityThread.getClass().getDeclaredField("mActivities");
+            mActivitiesField.setAccessible(true);
+            Object mActivities = mActivitiesField.get(activityThread);
+            if (!(mActivities instanceof Map)) {
+                return list;
+            }
+            Map<Object, Object> binder_activityClientRecord_map = (Map<Object, Object>) mActivities;
+            for (Object activityRecord : binder_activityClientRecord_map.values()) {
+                Class activityClientRecordClass = activityRecord.getClass();
+                Field activityField = activityClientRecordClass.getDeclaredField("activity");
+                activityField.setAccessible(true);
+                Activity activity = (Activity) activityField.get(activityRecord);
+                if (topActivity == null) {
+                    Field pausedField = activityClientRecordClass.getDeclaredField("paused");
+                    pausedField.setAccessible(true);
+                    if (!pausedField.getBoolean(activityRecord)) {
+                        topActivity = activity;
+                    } else {
+                        list.addFirst(activity);
+                    }
+                } else {
+                    list.addFirst(activity);
+                }
+            }
+        } catch (Exception e) {
+            Log.e("UtilsActivityLifecycle", "getActivitiesByReflect: " + e.getMessage());
+        }
+        if (topActivity != null) {
+            list.addFirst(topActivity);
+        }
+        return list;
+    }
+
+    private Object getActivityThread() {
+        Object activityThread = getActivityThreadInActivityThreadStaticField();
+        if (activityThread != null) return activityThread;
+        return getActivityThreadInActivityThreadStaticMethod();
+    }
+
+    private Object getActivityThreadInActivityThreadStaticField() {
+        try {
+            Class activityThreadClass = Class.forName("android.app.ActivityThread");
+            Field sCurrentActivityThreadField = activityThreadClass.getDeclaredField("sCurrentActivityThread");
+            sCurrentActivityThreadField.setAccessible(true);
+            return sCurrentActivityThreadField.get(null);
+        } catch (Exception e) {
+            Log.e("UtilsActivityLifecycle", "getActivityThreadInActivityThreadStaticField: " + e.getMessage());
+            return null;
+        }
+    }
+
+    private Object getActivityThreadInActivityThreadStaticMethod() {
+        try {
+            Class activityThreadClass = Class.forName("android.app.ActivityThread");
+            return activityThreadClass.getMethod("currentActivityThread").invoke(null);
+        } catch (Exception e) {
+            Log.e("UtilsActivityLifecycle", "getActivityThreadInActivityThreadStaticMethod: " + e.getMessage());
+            return null;
+        }
+    }
+
+    /**
+     * Set animators enabled.
+     */
+    private static void setAnimatorsEnabled() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && ValueAnimator.areAnimatorsEnabled()) {
+            return;
+        }
+        try {
+            //noinspection JavaReflectionMemberAccess
+            Field sDurationScaleField = ValueAnimator.class.getDeclaredField("sDurationScale");
+            sDurationScaleField.setAccessible(true);
+            //noinspection ConstantConditions
+            float sDurationScale = (Float) sDurationScaleField.get(null);
+            if (sDurationScale == 0f) {
+                sDurationScaleField.set(null, 1f);
+                Log.i("UtilsActivityLifecycle", "setAnimatorsEnabled: Animators are enabled now!");
+            }
+        } catch (NoSuchFieldException e) {
+            e.printStackTrace();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsBridge.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsBridge.java
new file mode 100644
index 0000000000..774d5bc845
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsBridge.java
@@ -0,0 +1,690 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.app.Application;
+import android.app.Notification;
+import android.content.Context;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Parcelable;
+import android.text.TextUtils;
+import android.view.View;
+
+import com.google.gson.Gson;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.InputStream;
+import java.io.Serializable;
+import java.lang.reflect.Type;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
+import androidx.annotation.RequiresPermission;
+import androidx.annotation.StringRes;
+import androidx.core.app.NotificationCompat;
+
+import static android.Manifest.permission.CALL_PHONE;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/19
+ *     desc  :
+ * </pre>
+ */
+class UtilsBridge {
+
+    static void init(Application app) {
+        UtilsActivityLifecycleImpl.INSTANCE.init(app);
+    }
+
+    static void unInit(Application app) {
+        UtilsActivityLifecycleImpl.INSTANCE.unInit(app);
+    }
+
+    static void preLoad() {
+        preLoad(AdaptScreenUtils.getPreLoadRunnable());
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // UtilsActivityLifecycleImpl
+    ///////////////////////////////////////////////////////////////////////////
+    static Activity getTopActivity() {
+        return UtilsActivityLifecycleImpl.INSTANCE.getTopActivity();
+    }
+
+    static void addOnAppStatusChangedListener(final Utils.OnAppStatusChangedListener listener) {
+        UtilsActivityLifecycleImpl.INSTANCE.addOnAppStatusChangedListener(listener);
+    }
+
+    static void removeOnAppStatusChangedListener(final Utils.OnAppStatusChangedListener listener) {
+        UtilsActivityLifecycleImpl.INSTANCE.removeOnAppStatusChangedListener(listener);
+    }
+
+    static void addActivityLifecycleCallbacks(final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsActivityLifecycleImpl.INSTANCE.addActivityLifecycleCallbacks(callbacks);
+    }
+
+    static void removeActivityLifecycleCallbacks(final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsActivityLifecycleImpl.INSTANCE.removeActivityLifecycleCallbacks(callbacks);
+    }
+
+    static void addActivityLifecycleCallbacks(final Activity activity,
+                                              final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsActivityLifecycleImpl.INSTANCE.addActivityLifecycleCallbacks(activity, callbacks);
+    }
+
+    static void removeActivityLifecycleCallbacks(final Activity activity) {
+        UtilsActivityLifecycleImpl.INSTANCE.removeActivityLifecycleCallbacks(activity);
+    }
+
+    static void removeActivityLifecycleCallbacks(final Activity activity,
+                                                 final Utils.ActivityLifecycleCallbacks callbacks) {
+        UtilsActivityLifecycleImpl.INSTANCE.removeActivityLifecycleCallbacks(activity, callbacks);
+    }
+
+    static List<Activity> getActivityList() {
+        return UtilsActivityLifecycleImpl.INSTANCE.getActivityList();
+    }
+
+    static Application getApplicationByReflect() {
+        return UtilsActivityLifecycleImpl.INSTANCE.getApplicationByReflect();
+    }
+
+    static boolean isAppForeground() {
+        return UtilsActivityLifecycleImpl.INSTANCE.isAppForeground();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ActivityUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isActivityAlive(final Activity activity) {
+        return ActivityUtils.isActivityAlive(activity);
+    }
+
+    static String getLauncherActivity(final String pkg) {
+        return ActivityUtils.getLauncherActivity(pkg);
+    }
+
+    static Activity getActivityByContext(Context context) {
+        return ActivityUtils.getActivityByContext(context);
+    }
+
+    static void startHomeActivity() {
+        ActivityUtils.startHomeActivity();
+    }
+
+    static void finishAllActivities() {
+        ActivityUtils.finishAllActivities();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // AppUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isAppRunning(@NonNull final String pkgName) {
+        return AppUtils.isAppRunning(pkgName);
+    }
+
+    static boolean isAppInstalled(final String pkgName) {
+        return AppUtils.isAppInstalled(pkgName);
+    }
+
+    static boolean isAppDebug() {
+        return AppUtils.isAppDebug();
+    }
+
+    static void relaunchApp() {
+        AppUtils.relaunchApp();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // BarUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static int getStatusBarHeight() {
+        return BarUtils.getStatusBarHeight();
+    }
+
+    static int getNavBarHeight() {
+        return BarUtils.getNavBarHeight();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ConvertUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static String bytes2HexString(final byte[] bytes) {
+        return ConvertUtils.bytes2HexString(bytes);
+    }
+
+    static byte[] hexString2Bytes(String hexString) {
+        return ConvertUtils.hexString2Bytes(hexString);
+    }
+
+    static byte[] string2Bytes(final String string) {
+        return ConvertUtils.string2Bytes(string);
+    }
+
+    static String bytes2String(final byte[] bytes) {
+        return ConvertUtils.bytes2String(bytes);
+    }
+
+    static byte[] jsonObject2Bytes(final JSONObject jsonObject) {
+        return ConvertUtils.jsonObject2Bytes(jsonObject);
+    }
+
+    static JSONObject bytes2JSONObject(final byte[] bytes) {
+        return ConvertUtils.bytes2JSONObject(bytes);
+    }
+
+    static byte[] jsonArray2Bytes(final JSONArray jsonArray) {
+        return ConvertUtils.jsonArray2Bytes(jsonArray);
+    }
+
+    static JSONArray bytes2JSONArray(final byte[] bytes) {
+        return ConvertUtils.bytes2JSONArray(bytes);
+    }
+
+    static byte[] parcelable2Bytes(final Parcelable parcelable) {
+        return ConvertUtils.parcelable2Bytes(parcelable);
+    }
+
+    static <T> T bytes2Parcelable(final byte[] bytes,
+                                  final Parcelable.Creator<T> creator) {
+        return ConvertUtils.bytes2Parcelable(bytes, creator);
+    }
+
+    static byte[] serializable2Bytes(final Serializable serializable) {
+        return ConvertUtils.serializable2Bytes(serializable);
+    }
+
+    static Object bytes2Object(final byte[] bytes) {
+        return ConvertUtils.bytes2Object(bytes);
+    }
+
+    static String byte2FitMemorySize(final long byteSize) {
+        return ConvertUtils.byte2FitMemorySize(byteSize);
+    }
+
+    static byte[] inputStream2Bytes(final InputStream is) {
+        return ConvertUtils.inputStream2Bytes(is);
+    }
+
+    static ByteArrayOutputStream input2OutputStream(final InputStream is) {
+        return ConvertUtils.input2OutputStream(is);
+    }
+
+    static List<String> inputStream2Lines(final InputStream is, final String charsetName) {
+        return ConvertUtils.inputStream2Lines(is, charsetName);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // DebouncingUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isValid(@NonNull final View view, final long duration) {
+        return DebouncingUtils.isValid(view, duration);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // EncodeUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static byte[] base64Encode(final byte[] input) {
+        return EncodeUtils.base64Encode(input);
+    }
+
+    static byte[] base64Decode(final byte[] input) {
+        return EncodeUtils.base64Decode(input);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // EncryptUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static byte[] hashTemplate(final byte[] data, final String algorithm) {
+        return EncryptUtils.hashTemplate(data, algorithm);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // FileIOUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean writeFileFromBytes(final File file,
+                                      final byte[] bytes) {
+        return FileIOUtils.writeFileFromBytesByChannel(file, bytes, true);
+    }
+
+    static byte[] readFile2Bytes(final File file) {
+        return FileIOUtils.readFile2BytesByChannel(file);
+    }
+
+    static boolean writeFileFromString(final String filePath, final String content, final boolean append) {
+        return FileIOUtils.writeFileFromString(filePath, content, append);
+    }
+
+    static boolean writeFileFromIS(final String filePath, final InputStream is) {
+        return FileIOUtils.writeFileFromIS(filePath, is);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // FileUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isFileExists(final File file) {
+        return FileUtils.isFileExists(file);
+    }
+
+    static File getFileByPath(final String filePath) {
+        return FileUtils.getFileByPath(filePath);
+    }
+
+    static boolean deleteAllInDir(final File dir) {
+        return FileUtils.deleteAllInDir(dir);
+    }
+
+    static boolean createOrExistsFile(final File file) {
+        return FileUtils.createOrExistsFile(file);
+    }
+
+    static boolean createOrExistsDir(final File file) {
+        return FileUtils.createOrExistsDir(file);
+    }
+
+    static boolean createFileByDeleteOldFile(final File file) {
+        return FileUtils.createFileByDeleteOldFile(file);
+    }
+
+    static long getFsTotalSize(String path) {
+        return FileUtils.getFsTotalSize(path);
+    }
+
+    static long getFsAvailableSize(String path) {
+        return FileUtils.getFsAvailableSize(path);
+    }
+
+    static void notifySystemToScan(File file) {
+        FileUtils.notifySystemToScan(file);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // GsonUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static String toJson(final Object object) {
+        return GsonUtils.toJson(object);
+    }
+
+    static <T> T fromJson(final String json, final Type type) {
+        return GsonUtils.fromJson(json, type);
+    }
+
+    static Gson getGson4LogUtils() {
+        return GsonUtils.getGson4LogUtils();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ImageUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static byte[] bitmap2Bytes(final Bitmap bitmap) {
+        return ImageUtils.bitmap2Bytes(bitmap);
+    }
+
+    static byte[] bitmap2Bytes(final Bitmap bitmap, final Bitmap.CompressFormat format, int quality) {
+        return ImageUtils.bitmap2Bytes(bitmap, format, quality);
+    }
+
+    static Bitmap bytes2Bitmap(final byte[] bytes) {
+        return ImageUtils.bytes2Bitmap(bytes);
+    }
+
+    static byte[] drawable2Bytes(final Drawable drawable) {
+        return ImageUtils.drawable2Bytes(drawable);
+    }
+
+    static byte[] drawable2Bytes(final Drawable drawable, final Bitmap.CompressFormat format, int quality) {
+        return ImageUtils.drawable2Bytes(drawable, format, quality);
+    }
+
+    static Drawable bytes2Drawable(final byte[] bytes) {
+        return ImageUtils.bytes2Drawable(bytes);
+    }
+
+    static Bitmap view2Bitmap(final View view) {
+        return ImageUtils.view2Bitmap(view);
+    }
+
+    static Bitmap drawable2Bitmap(final Drawable drawable) {
+        return ImageUtils.drawable2Bitmap(drawable);
+    }
+
+    static Drawable bitmap2Drawable(final Bitmap bitmap) {
+        return ImageUtils.bitmap2Drawable(bitmap);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // IntentUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isIntentAvailable(final Intent intent) {
+        return IntentUtils.isIntentAvailable(intent);
+    }
+
+    static Intent getLaunchAppIntent(final String pkgName) {
+        return IntentUtils.getLaunchAppIntent(pkgName);
+    }
+
+    static Intent getInstallAppIntent(final File file) {
+        return IntentUtils.getInstallAppIntent(file);
+    }
+
+    static Intent getInstallAppIntent(final Uri uri) {
+        return IntentUtils.getInstallAppIntent(uri);
+    }
+
+    static Intent getUninstallAppIntent(final String pkgName) {
+        return IntentUtils.getUninstallAppIntent(pkgName);
+    }
+
+    static Intent getDialIntent(final String phoneNumber) {
+        return IntentUtils.getDialIntent(phoneNumber);
+    }
+
+    @RequiresPermission(CALL_PHONE)
+    static Intent getCallIntent(final String phoneNumber) {
+        return IntentUtils.getCallIntent(phoneNumber);
+    }
+
+    static Intent getSendSmsIntent(final String phoneNumber, final String content) {
+        return IntentUtils.getSendSmsIntent(phoneNumber, content);
+    }
+
+    static Intent getLaunchAppDetailsSettingsIntent(final String pkgName, final boolean isNewTask) {
+        return IntentUtils.getLaunchAppDetailsSettingsIntent(pkgName, isNewTask);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // JsonUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static String formatJson(String json) {
+        return JsonUtils.formatJson(json);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // KeyboardUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static void fixSoftInputLeaks(final Activity activity) {
+        KeyboardUtils.fixSoftInputLeaks(activity);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // NotificationUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static Notification getNotification(NotificationUtils.ChannelConfig channelConfig,
+                                        Utils.Consumer<NotificationCompat.Builder> consumer) {
+        return NotificationUtils.getNotification(channelConfig, consumer);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // PermissionUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isGranted(final String... permissions) {
+        return PermissionUtils.isGranted(permissions);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    static boolean isGrantedDrawOverlays() {
+        return PermissionUtils.isGrantedDrawOverlays();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ProcessUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isMainProcess() {
+        return ProcessUtils.isMainProcess();
+    }
+
+    static String getForegroundProcessName() {
+        return ProcessUtils.getForegroundProcessName();
+    }
+
+    static String getCurrentProcessName() {
+        return ProcessUtils.getCurrentProcessName();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // RomUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isSamsung() {
+        return RomUtils.isSamsung();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ScreenUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static int getAppScreenWidth() {
+        return ScreenUtils.getAppScreenWidth();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // SDCardUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isSDCardEnableByEnvironment() {
+        return SDCardUtils.isSDCardEnableByEnvironment();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ServiceUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isServiceRunning(final String className) {
+        return ServiceUtils.isServiceRunning(className);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ShellUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static ShellUtils.CommandResult execCmd(final String command, final boolean isRooted) {
+        return ShellUtils.execCmd(command, isRooted);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // SizeUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static int dp2px(final float dpValue) {
+        return SizeUtils.dp2px(dpValue);
+    }
+
+    static int px2dp(final float pxValue) {
+        return SizeUtils.px2dp(pxValue);
+    }
+
+    static int sp2px(final float spValue) {
+        return SizeUtils.sp2px(spValue);
+    }
+
+    static int px2sp(final float pxValue) {
+        return SizeUtils.px2sp(pxValue);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // SpUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static SPUtils getSpUtils4Utils() {
+        return SPUtils.getInstance("Utils");
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // StringUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static boolean isSpace(final String s) {
+        return StringUtils.isSpace(s);
+    }
+
+    static boolean equals(final CharSequence s1, final CharSequence s2) {
+        return StringUtils.equals(s1, s2);
+    }
+
+    static String getString(@StringRes int id) {
+        return StringUtils.getString(id);
+    }
+
+    static String getString(@StringRes int id, Object... formatArgs) {
+        return StringUtils.getString(id, formatArgs);
+    }
+
+    static String format(@Nullable String str, Object... args) {
+        return StringUtils.format(str, args);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ThreadUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static <T> Utils.Task<T> doAsync(final Utils.Task<T> task) {
+        ThreadUtils.getCachedPool().execute(task);
+        return task;
+    }
+
+    static void runOnUiThread(final Runnable runnable) {
+        ThreadUtils.runOnUiThread(runnable);
+    }
+
+    static void runOnUiThreadDelayed(final Runnable runnable, long delayMillis) {
+        ThreadUtils.runOnUiThreadDelayed(runnable, delayMillis);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ThrowableUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static String getFullStackTrace(Throwable throwable) {
+        return ThrowableUtils.getFullStackTrace(throwable);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // TimeUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static String millis2FitTimeSpan(long millis, int precision) {
+        return TimeUtils.millis2FitTimeSpan(millis, precision);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ToastUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static void toastShowShort(final CharSequence text) {
+        ToastUtils.showShort(text);
+    }
+
+    static void toastCancel() {
+        ToastUtils.cancel();
+    }
+
+    private static void preLoad(final Runnable... runs) {
+        for (final Runnable r : runs) {
+            ThreadUtils.getCachedPool().execute(r);
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // UriUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static Uri file2Uri(final File file) {
+        return UriUtils.file2Uri(file);
+    }
+
+    static File uri2File(final Uri uri) {
+        return UriUtils.uri2File(uri);
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // ViewUtils
+    ///////////////////////////////////////////////////////////////////////////
+    static View layoutId2View(@LayoutRes final int layoutId) {
+        return ViewUtils.layoutId2View(layoutId);
+    }
+
+    static boolean isLayoutRtl() {
+        return ViewUtils.isLayoutRtl();
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Common
+    ///////////////////////////////////////////////////////////////////////////
+    static final class FileHead {
+
+        private String                        mName;
+        private LinkedHashMap<String, String> mFirst = new LinkedHashMap<>();
+        private LinkedHashMap<String, String> mLast  = new LinkedHashMap<>();
+
+        FileHead(String name) {
+            mName = name;
+        }
+
+        void addFirst(String key, String value) {
+            append2Host(mFirst, key, value);
+        }
+
+        void append(Map<String, String> extra) {
+            append2Host(mLast, extra);
+        }
+
+        void append(String key, String value) {
+            append2Host(mLast, key, value);
+        }
+
+        private void append2Host(Map<String, String> host, Map<String, String> extra) {
+            if (extra == null || extra.isEmpty()) {
+                return;
+            }
+            for (Map.Entry<String, String> entry : extra.entrySet()) {
+                append2Host(host, entry.getKey(), entry.getValue());
+            }
+        }
+
+        private void append2Host(Map<String, String> host, String key, String value) {
+            if (TextUtils.isEmpty(key) || TextUtils.isEmpty(value)) {
+                return;
+            }
+            int delta = 19 - key.length(); // 19 is length of "Device Manufacturer"
+            if (delta > 0) {
+                key = key + "                   ".substring(0, delta);
+            }
+            host.put(key, value);
+        }
+
+        public String getAppended() {
+            StringBuilder sb = new StringBuilder();
+            for (Map.Entry<String, String> entry : mLast.entrySet()) {
+                sb.append(entry.getKey()).append(": ").append(entry.getValue()).append("\n");
+            }
+            return sb.toString();
+        }
+
+        @Override
+        public String toString() {
+            StringBuilder sb = new StringBuilder();
+            String border = "************* " + mName + " Head ****************\n";
+            sb.append(border);
+            for (Map.Entry<String, String> entry : mFirst.entrySet()) {
+                sb.append(entry.getKey()).append(": ").append(entry.getValue()).append("\n");
+            }
+
+            sb.append("Rom Info           : ").append(RomUtils.getRomInfo()).append("\n");
+            sb.append("Device Manufacturer: ").append(Build.MANUFACTURER).append("\n");
+            sb.append("Device Model       : ").append(Build.MODEL).append("\n");
+            sb.append("Android Version    : ").append(Build.VERSION.RELEASE).append("\n");
+            sb.append("Android SDK        : ").append(Build.VERSION.SDK_INT).append("\n");
+            sb.append("App VersionName    : ").append(AppUtils.getAppVersionName()).append("\n");
+            sb.append("App VersionCode    : ").append(AppUtils.getAppVersionCode()).append("\n");
+
+            sb.append(getAppended());
+            return sb.append(border).append("\n").toString();
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsFileProvider.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsFileProvider.java
new file mode 100644
index 0000000000..6c8ae282a1
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsFileProvider.java
@@ -0,0 +1,23 @@
+package com.blankj.utilcode.util;
+
+import android.app.Application;
+
+import androidx.core.content.FileProvider;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/19
+ *     desc  :
+ * </pre>
+ */
+public class UtilsFileProvider extends FileProvider {
+
+    @Override
+    public boolean onCreate() {
+        //noinspection ConstantConditions
+        Utils.init((Application) getContext().getApplicationContext());
+        return true;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity.java
new file mode 100644
index 0000000000..65541a8953
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity.java
@@ -0,0 +1,185 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.MotionEvent;
+
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.Map;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/19
+ *     desc  :
+ * </pre>
+ */
+public class UtilsTransActivity extends AppCompatActivity {
+
+    private static final Map<UtilsTransActivity, TransActivityDelegate> CALLBACK_MAP = new HashMap<>();
+
+    protected static final String EXTRA_DELEGATE = "extra_delegate";
+
+    public static void start(final TransActivityDelegate delegate) {
+        start(null, null, delegate, UtilsTransActivity.class);
+    }
+
+    public static void start(final Utils.Consumer<Intent> consumer,
+                             final TransActivityDelegate delegate) {
+        start(null, consumer, delegate, UtilsTransActivity.class);
+    }
+
+    public static void start(final Activity activity,
+                             final TransActivityDelegate delegate) {
+        start(activity, null, delegate, UtilsTransActivity.class);
+    }
+
+    public static void start(final Activity activity,
+                             final Utils.Consumer<Intent> consumer,
+                             final TransActivityDelegate delegate) {
+        start(activity, consumer, delegate, UtilsTransActivity.class);
+    }
+
+    protected static void start(final Activity activity,
+                                final Utils.Consumer<Intent> consumer,
+                                final TransActivityDelegate delegate,
+                                final Class<?> cls) {
+        if (delegate == null) return;
+        Intent starter = new Intent(Utils.getApp(), cls);
+        starter.putExtra(EXTRA_DELEGATE, delegate);
+        if (consumer != null) {
+            consumer.accept(starter);
+        }
+        if (activity == null) {
+            starter.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            Utils.getApp().startActivity(starter);
+        } else {
+            activity.startActivity(starter);
+        }
+    }
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        overridePendingTransition(0, 0);
+        Serializable extra = getIntent().getSerializableExtra(EXTRA_DELEGATE);
+        if (!(extra instanceof TransActivityDelegate)) {
+            super.onCreate(savedInstanceState);
+            finish();
+            return;
+        }
+        TransActivityDelegate delegate = (TransActivityDelegate) extra;
+        CALLBACK_MAP.put(this, delegate);
+        delegate.onCreateBefore(this, savedInstanceState);
+        super.onCreate(savedInstanceState);
+        delegate.onCreated(this, savedInstanceState);
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onStarted(this);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onResumed(this);
+    }
+
+    @Override
+    protected void onPause() {
+        overridePendingTransition(0, 0);
+        super.onPause();
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onPaused(this);
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onStopped(this);
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onSaveInstanceState(this, outState);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onDestroy(this);
+        CALLBACK_MAP.remove(this);
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onRequestPermissionsResult(this, requestCode, permissions, grantResults);
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return;
+        callback.onActivityResult(this, requestCode, resultCode, data);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        TransActivityDelegate callback = CALLBACK_MAP.get(this);
+        if (callback == null) return super.dispatchTouchEvent(ev);
+        if (callback.dispatchTouchEvent(this, ev)) {
+            return true;
+        }
+        return super.dispatchTouchEvent(ev);
+    }
+
+    public abstract static class TransActivityDelegate implements Serializable {
+        public void onCreateBefore(@NonNull UtilsTransActivity activity, @Nullable Bundle savedInstanceState) {/**/}
+
+        public void onCreated(@NonNull UtilsTransActivity activity, @Nullable Bundle savedInstanceState) {/**/}
+
+        public void onStarted(@NonNull UtilsTransActivity activity) {/**/}
+
+        public void onDestroy(@NonNull UtilsTransActivity activity) {/**/}
+
+        public void onResumed(@NonNull UtilsTransActivity activity) {/**/}
+
+        public void onPaused(@NonNull UtilsTransActivity activity) {/**/}
+
+        public void onStopped(@NonNull UtilsTransActivity activity) {/**/}
+
+        public void onSaveInstanceState(@NonNull UtilsTransActivity activity, Bundle outState) {/**/}
+
+        public void onRequestPermissionsResult(@NonNull UtilsTransActivity activity, int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {/**/}
+
+        public void onActivityResult(@NonNull UtilsTransActivity activity, int requestCode, int resultCode, Intent data) {/**/}
+
+        public boolean dispatchTouchEvent(@NonNull UtilsTransActivity activity, MotionEvent ev) {
+            return false;
+        }
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity4MainProcess.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity4MainProcess.java
new file mode 100644
index 0000000000..c63475c08e
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsTransActivity4MainProcess.java
@@ -0,0 +1,35 @@
+package com.blankj.utilcode.util;
+
+import android.app.Activity;
+import android.content.Intent;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/03/19
+ *     desc  :
+ * </pre>
+ */
+public class UtilsTransActivity4MainProcess extends UtilsTransActivity {
+
+    public static void start(final TransActivityDelegate delegate) {
+        start(null, null, delegate, UtilsTransActivity4MainProcess.class);
+    }
+
+    public static void start(final Utils.Consumer<Intent> consumer,
+                             final TransActivityDelegate delegate) {
+        start(null, consumer, delegate, UtilsTransActivity4MainProcess.class);
+    }
+
+    public static void start(final Activity activity,
+                             final TransActivityDelegate delegate) {
+        start(activity, null, delegate, UtilsTransActivity4MainProcess.class);
+    }
+
+    public static void start(final Activity activity,
+                             final Utils.Consumer<Intent> consumer,
+                             final TransActivityDelegate delegate) {
+        start(activity, consumer, delegate, UtilsTransActivity4MainProcess.class);
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/VibrateUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/VibrateUtils.java
new file mode 100644
index 0000000000..164810381a
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/VibrateUtils.java
@@ -0,0 +1,148 @@
+package com.blankj.utilcode.util;
+
+import android.content.Context;
+import android.media.AudioAttributes;
+import android.os.Build;
+import android.os.Vibrator;
+
+import androidx.annotation.RequiresApi;
+import androidx.annotation.RequiresPermission;
+
+import static android.Manifest.permission.VIBRATE;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/29
+ *     desc  : utils about vibrate
+ * </pre>
+ */
+public final class VibrateUtils {
+
+    private static Vibrator vibrator;
+
+    private VibrateUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Vibrate.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     *
+     * @param milliseconds The number of milliseconds to vibrate.
+     */
+    @RequiresPermission(VIBRATE)
+    public static void vibrate(final long milliseconds) {
+        Vibrator vibrator = getVibrator();
+        if (vibrator == null) return;
+        vibrator.vibrate(milliseconds);
+    }
+
+    /**
+     * Vibrate.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     *
+     * @param milliseconds The number of milliseconds to vibrate.
+     * @param attributes   {@link AudioAttributes} corresponding to the vibration. For example,
+     *                     specify {@link AudioAttributes#USAGE_ALARM} for alarm vibrations or
+     *                     {@link AudioAttributes#USAGE_NOTIFICATION_RINGTONE} for
+     *                     vibrations associated with incoming calls.
+     */
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    @RequiresPermission(VIBRATE)
+    public static void vibrate(final long milliseconds, AudioAttributes attributes) {
+        Vibrator vibrator = getVibrator();
+        if (vibrator == null) return;
+        vibrator.vibrate(milliseconds, attributes);
+    }
+
+    /**
+     * VibrateCompat - Can vibrate in background
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     *
+     * @param milliseconds he number of milliseconds to vibrate.
+     */
+    @RequiresPermission(VIBRATE)
+    public static void vibrateCompat(final long milliseconds) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            vibrate(milliseconds, getAudioAttributes());
+        } else {
+            vibrate(milliseconds);
+        }
+    }
+
+    /**
+     * Vibrate.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     *
+     * @param pattern An array of longs of times for which to turn the vibrator on or off.
+     * @param repeat  The index into pattern at which to repeat, or -1 if you don't want to repeat.
+     */
+    @RequiresPermission(VIBRATE)
+    public static void vibrate(final long[] pattern, final int repeat) {
+        Vibrator vibrator = getVibrator();
+        if (vibrator == null) return;
+        vibrator.vibrate(pattern, repeat);
+    }
+
+    /**
+     * Vibrate.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     *
+     * @param pattern    An array of longs of times for which to turn the vibrator on or off.
+     * @param repeat     The index into pattern at which to repeat, or -1 if you don't want to repeat.
+     * @param attributes {@link AudioAttributes} corresponding to the vibration. For example,
+     *                   specify {@link AudioAttributes#USAGE_ALARM} for alarm vibrations or
+     *                   {@link AudioAttributes#USAGE_NOTIFICATION_RINGTONE} for
+     *                   vibrations associated with incoming calls.
+     */
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    @RequiresPermission(VIBRATE)
+    public static void vibrate(final long[] pattern, final int repeat, AudioAttributes attributes) {
+        Vibrator vibrator = getVibrator();
+        if (vibrator == null) return;
+        vibrator.vibrate(pattern, repeat, attributes);
+    }
+
+    /**
+     * VibrateCompat - Can vibrate in background
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     *
+     * @param pattern An array of longs of times for which to turn the vibrator on or off.
+     * @param repeat  The index into pattern at which to repeat, or -1 if you don't want to repeat.
+     */
+    @RequiresPermission(VIBRATE)
+    public static void vibrateCompat(final long[] pattern, final int repeat) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            vibrate(pattern, repeat, getAudioAttributes());
+        } else {
+            vibrate(pattern, repeat);
+        }
+    }
+
+    /**
+     * Cancel vibrate.
+     * <p>Must hold {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
+     */
+    @RequiresPermission(VIBRATE)
+    public static void cancel() {
+        Vibrator vibrator = getVibrator();
+        if (vibrator == null) return;
+        vibrator.cancel();
+    }
+
+    private static Vibrator getVibrator() {
+        if (vibrator == null) {
+            vibrator = (Vibrator) Utils.getApp().getSystemService(Context.VIBRATOR_SERVICE);
+        }
+        return vibrator;
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    private static AudioAttributes getAudioAttributes() {
+        return new AudioAttributes.Builder()
+                .setUsage(AudioAttributes.USAGE_ALARM)
+                .build();
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ViewUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ViewUtils.java
new file mode 100644
index 0000000000..f0ef043322
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ViewUtils.java
@@ -0,0 +1,119 @@
+package com.blankj.utilcode.util;
+
+import android.content.Context;
+import android.os.Build;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.Locale;
+
+import androidx.annotation.LayoutRes;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/06/18
+ *     desc  : utils about view
+ * </pre>
+ */
+public class ViewUtils {
+
+    /**
+     * Set the enabled state of this view.
+     *
+     * @param view    The view.
+     * @param enabled True to enabled, false otherwise.
+     */
+    public static void setViewEnabled(View view, boolean enabled) {
+        setViewEnabled(view, enabled, (View) null);
+    }
+
+    /**
+     * Set the enabled state of this view.
+     *
+     * @param view     The view.
+     * @param enabled  True to enabled, false otherwise.
+     * @param excludes The excludes.
+     */
+    public static void setViewEnabled(View view, boolean enabled, View... excludes) {
+        if (view == null) return;
+        if (excludes != null) {
+            for (View exclude : excludes) {
+                if (view == exclude) return;
+            }
+        }
+        if (view instanceof ViewGroup) {
+            ViewGroup viewGroup = (ViewGroup) view;
+            int childCount = viewGroup.getChildCount();
+            for (int i = 0; i < childCount; i++) {
+                setViewEnabled(viewGroup.getChildAt(i), enabled, excludes);
+            }
+        }
+        view.setEnabled(enabled);
+    }
+
+    /**
+     * @param runnable The runnable
+     */
+    public static void runOnUiThread(final Runnable runnable) {
+        UtilsBridge.runOnUiThread(runnable);
+    }
+
+    /**
+     * @param runnable    The runnable.
+     * @param delayMillis The delay (in milliseconds) until the Runnable will be executed.
+     */
+    public static void runOnUiThreadDelayed(final Runnable runnable, long delayMillis) {
+        UtilsBridge.runOnUiThreadDelayed(runnable, delayMillis);
+    }
+
+    /**
+     * Return whether horizontal layout direction of views are from Right to Left.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLayoutRtl() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            Locale primaryLocale;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                primaryLocale = Utils.getApp().getResources().getConfiguration().getLocales().get(0);
+            } else {
+                primaryLocale = Utils.getApp().getResources().getConfiguration().locale;
+            }
+            return TextUtils.getLayoutDirectionFromLocale(primaryLocale) == View.LAYOUT_DIRECTION_RTL;
+        }
+        return false;
+    }
+
+    /**
+     * Fix the problem of topping the ScrollView nested ListView/GridView/WebView/RecyclerView.
+     *
+     * @param view The root view inner of ScrollView.
+     */
+    public static void fixScrollViewTopping(View view) {
+        view.setFocusable(false);
+        ViewGroup viewGroup = null;
+        if (view instanceof ViewGroup) {
+            viewGroup = (ViewGroup) view;
+        }
+        if (viewGroup == null) {
+            return;
+        }
+        for (int i = 0, n = viewGroup.getChildCount(); i < n; i++) {
+            View childAt = viewGroup.getChildAt(i);
+            childAt.setFocusable(false);
+            if (childAt instanceof ViewGroup) {
+                fixScrollViewTopping(childAt);
+            }
+        }
+    }
+
+    public static View layoutId2View(@LayoutRes final int layoutId) {
+        LayoutInflater inflate =
+                (LayoutInflater) Utils.getApp().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        return inflate.inflate(layoutId, null);
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/VolumeUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/VolumeUtils.java
new file mode 100644
index 0000000000..ed3b62ae76
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/VolumeUtils.java
@@ -0,0 +1,120 @@
+package com.blankj.utilcode.util;
+
+import android.content.Context;
+import android.media.AudioManager;
+import android.os.Build;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/09/08
+ *     desc  : utils about volume
+ * </pre>
+ */
+public class VolumeUtils {
+
+    /**
+     * Return the volume.
+     *
+     * @param streamType The stream type.
+     *                   <ul>
+     *                   <li>{@link AudioManager#STREAM_VOICE_CALL}</li>
+     *                   <li>{@link AudioManager#STREAM_SYSTEM}</li>
+     *                   <li>{@link AudioManager#STREAM_RING}</li>
+     *                   <li>{@link AudioManager#STREAM_MUSIC}</li>
+     *                   <li>{@link AudioManager#STREAM_ALARM}</li>
+     *                   <li>{@link AudioManager#STREAM_NOTIFICATION}</li>
+     *                   <li>{@link AudioManager#STREAM_DTMF}</li>
+     *                   <li>{@link AudioManager#STREAM_ACCESSIBILITY}</li>
+     *                   </ul>
+     * @return the volume
+     */
+    public static int getVolume(int streamType) {
+        AudioManager am = (AudioManager) Utils.getApp().getSystemService(Context.AUDIO_SERVICE);
+        //noinspection ConstantConditions
+        return am.getStreamVolume(streamType);
+    }
+
+    /**
+     * Sets media volume.<br>
+     * When setting the value of parameter 'volume' greater than the maximum value of the media volume will not either cause error or throw exception but maximize the media volume.<br>
+     * Setting the value of volume lower than 0 will minimize the media volume.
+     *
+     * @param streamType The stream type.
+     *                   <ul>
+     *                   <li>{@link AudioManager#STREAM_VOICE_CALL}</li>
+     *                   <li>{@link AudioManager#STREAM_SYSTEM}</li>
+     *                   <li>{@link AudioManager#STREAM_RING}</li>
+     *                   <li>{@link AudioManager#STREAM_MUSIC}</li>
+     *                   <li>{@link AudioManager#STREAM_ALARM}</li>
+     *                   <li>{@link AudioManager#STREAM_NOTIFICATION}</li>
+     *                   <li>{@link AudioManager#STREAM_DTMF}</li>
+     *                   <li>{@link AudioManager#STREAM_ACCESSIBILITY}</li>
+     *                   </ul>
+     * @param volume     The volume.
+     * @param flags      The flags.
+     *                   <ul>
+     *                   <li>{@link AudioManager#FLAG_SHOW_UI}</li>
+     *                   <li>{@link AudioManager#FLAG_ALLOW_RINGER_MODES}</li>
+     *                   <li>{@link AudioManager#FLAG_PLAY_SOUND}</li>
+     *                   <li>{@link AudioManager#FLAG_REMOVE_SOUND_AND_VIBRATE}</li>
+     *                   <li>{@link AudioManager#FLAG_VIBRATE}</li>
+     *                   </ul>
+     */
+    public static void setVolume(int streamType, int volume, int flags) {
+        AudioManager am = (AudioManager) Utils.getApp().getSystemService(Context.AUDIO_SERVICE);
+        try {
+            //noinspection ConstantConditions
+            am.setStreamVolume(streamType, volume, flags);
+        } catch (SecurityException ignore) {
+        }
+    }
+
+    /**
+     * Return the maximum volume.
+     *
+     * @param streamType The stream type.
+     *                   <ul>
+     *                   <li>{@link AudioManager#STREAM_VOICE_CALL}</li>
+     *                   <li>{@link AudioManager#STREAM_SYSTEM}</li>
+     *                   <li>{@link AudioManager#STREAM_RING}</li>
+     *                   <li>{@link AudioManager#STREAM_MUSIC}</li>
+     *                   <li>{@link AudioManager#STREAM_ALARM}</li>
+     *                   <li>{@link AudioManager#STREAM_NOTIFICATION}</li>
+     *                   <li>{@link AudioManager#STREAM_DTMF}</li>
+     *                   <li>{@link AudioManager#STREAM_ACCESSIBILITY}</li>
+     *                   </ul>
+     * @return the maximum volume
+     */
+    public static int getMaxVolume(int streamType) {
+        AudioManager am = (AudioManager) Utils.getApp().getSystemService(Context.AUDIO_SERVICE);
+        //noinspection ConstantConditions
+        return am.getStreamMaxVolume(streamType);
+    }
+
+    /**
+     * Return the minimum volume.
+     *
+     * @param streamType The stream type.
+     *                   <ul>
+     *                   <li>{@link AudioManager#STREAM_VOICE_CALL}</li>
+     *                   <li>{@link AudioManager#STREAM_SYSTEM}</li>
+     *                   <li>{@link AudioManager#STREAM_RING}</li>
+     *                   <li>{@link AudioManager#STREAM_MUSIC}</li>
+     *                   <li>{@link AudioManager#STREAM_ALARM}</li>
+     *                   <li>{@link AudioManager#STREAM_NOTIFICATION}</li>
+     *                   <li>{@link AudioManager#STREAM_DTMF}</li>
+     *                   <li>{@link AudioManager#STREAM_ACCESSIBILITY}</li>
+     *                   </ul>
+     * @return the minimum volume
+     */
+    public static int getMinVolume(int streamType) {
+        AudioManager am = (AudioManager) Utils.getApp().getSystemService(Context.AUDIO_SERVICE);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            //noinspection ConstantConditions
+            return am.getStreamMinVolume(streamType);
+        }
+        return 0;
+    }
+}
diff --git a/lib/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java
new file mode 100644
index 0000000000..783048d8ff
--- /dev/null
+++ b/lib/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java
@@ -0,0 +1,425 @@
+package com.blankj.utilcode.util;
+
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipOutputStream;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/27
+ *     desc  : utils about zip
+ * </pre>
+ */
+public final class ZipUtils {
+
+    private static final int BUFFER_LEN = 8192;
+
+    private ZipUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFiles    The source of files.
+     * @param zipFilePath The path of ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<String> srcFiles,
+                                   final String zipFilePath)
+            throws IOException {
+        return zipFiles(srcFiles, zipFilePath, null);
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFilePaths The paths of source files.
+     * @param zipFilePath  The path of ZIP file.
+     * @param comment      The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<String> srcFilePaths,
+                                   final String zipFilePath,
+                                   final String comment)
+            throws IOException {
+        if (srcFilePaths == null || zipFilePath == null) return false;
+        ZipOutputStream zos = null;
+        try {
+            zos = new ZipOutputStream(new FileOutputStream(zipFilePath));
+            for (String srcFile : srcFilePaths) {
+                if (!zipFile(UtilsBridge.getFileByPath(srcFile), "", zos, comment)) return false;
+            }
+            return true;
+        } finally {
+            if (zos != null) {
+                zos.finish();
+                zos.close();
+            }
+        }
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFiles The source of files.
+     * @param zipFile  The ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<File> srcFiles, final File zipFile)
+            throws IOException {
+        return zipFiles(srcFiles, zipFile, null);
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFiles The source of files.
+     * @param zipFile  The ZIP file.
+     * @param comment  The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<File> srcFiles,
+                                   final File zipFile,
+                                   final String comment)
+            throws IOException {
+        if (srcFiles == null || zipFile == null) return false;
+        ZipOutputStream zos = null;
+        try {
+            zos = new ZipOutputStream(new FileOutputStream(zipFile));
+            for (File srcFile : srcFiles) {
+                if (!zipFile(srcFile, "", zos, comment)) return false;
+            }
+            return true;
+        } finally {
+            if (zos != null) {
+                zos.finish();
+                zos.close();
+            }
+        }
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFilePath The path of source file.
+     * @param zipFilePath The path of ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final String srcFilePath,
+                                  final String zipFilePath)
+            throws IOException {
+        return zipFile(UtilsBridge.getFileByPath(srcFilePath), UtilsBridge.getFileByPath(zipFilePath), null);
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFilePath The path of source file.
+     * @param zipFilePath The path of ZIP file.
+     * @param comment     The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final String srcFilePath,
+                                  final String zipFilePath,
+                                  final String comment)
+            throws IOException {
+        return zipFile(UtilsBridge.getFileByPath(srcFilePath), UtilsBridge.getFileByPath(zipFilePath), comment);
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFile The source of file.
+     * @param zipFile The ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final File srcFile,
+                                  final File zipFile)
+            throws IOException {
+        return zipFile(srcFile, zipFile, null);
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFile The source of file.
+     * @param zipFile The ZIP file.
+     * @param comment The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final File srcFile,
+                                  final File zipFile,
+                                  final String comment)
+            throws IOException {
+        if (srcFile == null || zipFile == null) return false;
+        ZipOutputStream zos = null;
+        try {
+            zos = new ZipOutputStream(new FileOutputStream(zipFile));
+            return zipFile(srcFile, "", zos, comment);
+        } finally {
+            if (zos != null) {
+                zos.close();
+            }
+        }
+    }
+
+    private static boolean zipFile(final File srcFile,
+                                   String rootPath,
+                                   final ZipOutputStream zos,
+                                   final String comment)
+            throws IOException {
+        rootPath = rootPath + (UtilsBridge.isSpace(rootPath) ? "" : File.separator) + srcFile.getName();
+        if (srcFile.isDirectory()) {
+            File[] fileList = srcFile.listFiles();
+            if (fileList == null || fileList.length <= 0) {
+                ZipEntry entry = new ZipEntry(rootPath + '/');
+                entry.setComment(comment);
+                zos.putNextEntry(entry);
+                zos.closeEntry();
+            } else {
+                for (File file : fileList) {
+                    if (!zipFile(file, rootPath, zos, comment)) return false;
+                }
+            }
+        } else {
+            InputStream is = null;
+            try {
+                is = new BufferedInputStream(new FileInputStream(srcFile));
+                ZipEntry entry = new ZipEntry(rootPath);
+                entry.setComment(comment);
+                zos.putNextEntry(entry);
+                byte buffer[] = new byte[BUFFER_LEN];
+                int len;
+                while ((len = is.read(buffer, 0, BUFFER_LEN)) != -1) {
+                    zos.write(buffer, 0, len);
+                }
+                zos.closeEntry();
+            } finally {
+                if (is != null) {
+                    is.close();
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Unzip the file.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @param destDirPath The path of destination directory.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFile(final String zipFilePath,
+                                       final String destDirPath)
+            throws IOException {
+        return unzipFileByKeyword(zipFilePath, destDirPath, null);
+    }
+
+    /**
+     * Unzip the file.
+     *
+     * @param zipFile The ZIP file.
+     * @param destDir The destination directory.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFile(final File zipFile,
+                                       final File destDir)
+            throws IOException {
+        return unzipFileByKeyword(zipFile, destDir, null);
+    }
+
+    /**
+     * Unzip the file by keyword.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @param destDirPath The path of destination directory.
+     * @param keyword     The keyboard.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFileByKeyword(final String zipFilePath,
+                                                final String destDirPath,
+                                                final String keyword)
+            throws IOException {
+        return unzipFileByKeyword(UtilsBridge.getFileByPath(zipFilePath), UtilsBridge.getFileByPath(destDirPath), keyword);
+    }
+
+    /**
+     * Unzip the file by keyword.
+     *
+     * @param zipFile The ZIP file.
+     * @param destDir The destination directory.
+     * @param keyword The keyboard.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFileByKeyword(final File zipFile,
+                                                final File destDir,
+                                                final String keyword)
+            throws IOException {
+        if (zipFile == null || destDir == null) return null;
+        List<File> files = new ArrayList<>();
+        ZipFile zip = new ZipFile(zipFile);
+        Enumeration<?> entries = zip.entries();
+        try {
+            if (UtilsBridge.isSpace(keyword)) {
+                while (entries.hasMoreElements()) {
+                    ZipEntry entry = ((ZipEntry) entries.nextElement());
+                    String entryName = entry.getName().replace("\\", "/");
+                    if (entryName.contains("../")) {
+                        Log.e("ZipUtils", "entryName: " + entryName + " is dangerous!");
+                        continue;
+                    }
+                    if (!unzipChildFile(destDir, files, zip, entry, entryName)) return files;
+                }
+            } else {
+                while (entries.hasMoreElements()) {
+                    ZipEntry entry = ((ZipEntry) entries.nextElement());
+                    String entryName = entry.getName().replace("\\", "/");
+                    if (entryName.contains("../")) {
+                        Log.e("ZipUtils", "entryName: " + entryName + " is dangerous!");
+                        continue;
+                    }
+                    if (entryName.contains(keyword)) {
+                        if (!unzipChildFile(destDir, files, zip, entry, entryName)) return files;
+                    }
+                }
+            }
+        } finally {
+            zip.close();
+        }
+        return files;
+    }
+
+    private static boolean unzipChildFile(final File destDir,
+                                          final List<File> files,
+                                          final ZipFile zip,
+                                          final ZipEntry entry,
+                                          final String name) throws IOException {
+        File file = new File(destDir, name);
+        files.add(file);
+        if (entry.isDirectory()) {
+            return UtilsBridge.createOrExistsDir(file);
+        } else {
+            if (!UtilsBridge.createOrExistsFile(file)) return false;
+            InputStream in = null;
+            OutputStream out = null;
+            try {
+                in = new BufferedInputStream(zip.getInputStream(entry));
+                out = new BufferedOutputStream(new FileOutputStream(file));
+                byte buffer[] = new byte[BUFFER_LEN];
+                int len;
+                while ((len = in.read(buffer)) != -1) {
+                    out.write(buffer, 0, len);
+                }
+            } finally {
+                if (in != null) {
+                    in.close();
+                }
+                if (out != null) {
+                    out.close();
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Return the files' path in ZIP file.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @return the files' path in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getFilesPath(final String zipFilePath)
+            throws IOException {
+        return getFilesPath(UtilsBridge.getFileByPath(zipFilePath));
+    }
+
+    /**
+     * Return the files' path in ZIP file.
+     *
+     * @param zipFile The ZIP file.
+     * @return the files' path in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getFilesPath(final File zipFile)
+            throws IOException {
+        if (zipFile == null) return null;
+        List<String> paths = new ArrayList<>();
+        ZipFile zip = new ZipFile(zipFile);
+        Enumeration<?> entries = zip.entries();
+        while (entries.hasMoreElements()) {
+            String entryName = ((ZipEntry) entries.nextElement()).getName().replace("\\", "/");
+            if (entryName.contains("../")) {
+                Log.e("ZipUtils", "entryName: " + entryName + " is dangerous!");
+                paths.add(entryName);
+            } else {
+                paths.add(entryName);
+            }
+        }
+        zip.close();
+        return paths;
+    }
+
+    /**
+     * Return the files' comment in ZIP file.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @return the files' comment in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getComments(final String zipFilePath)
+            throws IOException {
+        return getComments(UtilsBridge.getFileByPath(zipFilePath));
+    }
+
+    /**
+     * Return the files' comment in ZIP file.
+     *
+     * @param zipFile The ZIP file.
+     * @return the files' comment in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getComments(final File zipFile)
+            throws IOException {
+        if (zipFile == null) return null;
+        List<String> comments = new ArrayList<>();
+        ZipFile zip = new ZipFile(zipFile);
+        Enumeration<?> entries = zip.entries();
+        while (entries.hasMoreElements()) {
+            ZipEntry entry = ((ZipEntry) entries.nextElement());
+            comments.add(entry.getComment());
+        }
+        zip.close();
+        return comments;
+    }
+}
diff --git a/lib/utilcode/src/main/res/drawable/utils_toast_bg.xml b/lib/utilcode/src/main/res/drawable/utils_toast_bg.xml
new file mode 100644
index 0000000000..5e6370b319
--- /dev/null
+++ b/lib/utilcode/src/main/res/drawable/utils_toast_bg.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#E6EEEEEE" />
+    <corners android:radius="16dp" />
+</shape>
+
diff --git a/lib/utilcode/src/main/res/layout/utils_toast_view.xml b/lib/utilcode/src/main/res/layout/utils_toast_view.xml
new file mode 100644
index 0000000000..59af74b6bb
--- /dev/null
+++ b/lib/utilcode/src/main/res/layout/utils_toast_view.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<view xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    class="com.blankj.utilcode.util.ToastUtils$UtilsMaxWidthRelativeLayout"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@drawable/utils_toast_bg"
+    android:paddingLeft="16dp"
+    android:paddingTop="12dp"
+    android:paddingRight="16dp"
+    android:paddingBottom="12dp">
+
+    <View
+        android:id="@+id/utvLeftIconView"
+        android:layout_width="22dp"
+        android:layout_height="22dp"
+        android:layout_alignParentLeft="true"
+        android:layout_centerVertical="true"
+        android:layout_marginRight="8dp"
+        android:visibility="gone"
+        tools:background="#00ff00"
+        tools:visibility="gone" />
+
+    <View
+        android:id="@+id/utvTopIconView"
+        android:layout_width="22dp"
+        android:layout_height="22dp"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginBottom="4dp"
+        android:visibility="gone"
+        tools:background="#00ff00"
+        tools:visibility="gone" />
+
+    <View
+        android:id="@+id/utvRightIconView"
+        android:layout_width="22dp"
+        android:layout_height="22dp"
+        android:layout_alignParentRight="true"
+        android:layout_centerVertical="true"
+        android:layout_marginLeft="8dp"
+        android:visibility="gone"
+        tools:background="#00ff00"
+        tools:visibility="gone" />
+
+    <View
+        android:id="@+id/utvBottomIconView"
+        android:layout_width="22dp"
+        android:layout_height="22dp"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="4dp"
+        android:visibility="gone"
+        tools:background="#00ff00"
+        tools:visibility="gone" />
+
+    <TextView
+        android:id="@android:id/message"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_above="@id/utvBottomIconView"
+        android:layout_below="@id/utvTopIconView"
+        android:layout_centerInParent="true"
+        android:layout_toLeftOf="@id/utvRightIconView"
+        android:layout_toRightOf="@id/utvLeftIconView"
+        android:fontFamily="sans-serif"
+        android:gravity="center"
+        android:lineSpacingExtra="2dp"
+        android:textColor="#DE000000"
+        android:textSize="14sp"
+        tools:text="This is long text." />
+</view>
\ No newline at end of file
diff --git a/lib/utilcode/src/main/res/values-v21/styles.xml b/lib/utilcode/src/main/res/values-v21/styles.xml
new file mode 100644
index 0000000000..967acc3c0f
--- /dev/null
+++ b/lib/utilcode/src/main/res/values-v21/styles.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="ActivityTranslucent" parent="Theme.AppCompat.Light.NoActionBar">
+        <item name="android:background">@android:color/transparent</item>
+        <item name="android:colorBackgroundCacheHint">@null</item>
+        <item name="android:windowActionBar">false</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:backgroundDimEnabled">false</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowAnimationStyle">@null</item>
+        <item name="android:windowDisablePreview">true</item>
+    </style>
+
+</resources>
\ No newline at end of file
diff --git a/lib/utilcode/src/main/res/values/styles.xml b/lib/utilcode/src/main/res/values/styles.xml
new file mode 100644
index 0000000000..0fcfe9b91d
--- /dev/null
+++ b/lib/utilcode/src/main/res/values/styles.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="ActivityTranslucent" parent="Theme.AppCompat.Light.NoActionBar">
+        <item name="android:background">@android:color/transparent</item>
+        <item name="android:colorBackgroundCacheHint">@null</item>
+        <item name="android:windowActionBar">false</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:backgroundDimEnabled">false</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowAnimationStyle">@null</item>
+        <item name="android:windowDisablePreview">true</item>
+    </style>
+
+</resources>
\ No newline at end of file
diff --git a/lib/utilcode/src/main/res/xml/util_code_provider_paths.xml b/lib/utilcode/src/main/res/xml/util_code_provider_paths.xml
new file mode 100644
index 0000000000..b88716480c
--- /dev/null
+++ b/lib/utilcode/src/main/res/xml/util_code_provider_paths.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <files-path
+        name="files_path"
+        path="." />
+
+    <cache-path
+        name="cache_path"
+        path="." />
+
+    <external-path
+        name="external_path"
+        path="." />
+
+    <external-files-path
+        name="external_files_path"
+        path="." />
+
+    <external-cache-path
+        name="external_cache_path"
+        path="." />
+
+    <external-media-path
+        name="external_media_path"
+        path="." />
+      <!--配置root-path。这样子可以读取到sd卡和一些应用分身的目录，否则微信分身保存的图片，就会导致 java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/999/tencent/MicroMsg/WeiXin/export1544062754693.jpg，在小米6的手机上微信分身有这个crash，华为没有
+-->
+    <root-path
+        name="root-path"
+        path="" />
+</paths>
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/ApiUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ApiUtilsTest.java
new file mode 100644
index 0000000000..f39c32661e
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ApiUtilsTest.java
@@ -0,0 +1,47 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/11
+ *     desc  :
+ * </pre>
+ */
+public class ApiUtilsTest extends BaseTest {
+
+    @Before
+    public void setUp() throws Exception {
+        ApiUtils.register(TestApiImpl.class);
+    }
+
+    @Test
+    public void getApi() {
+        System.out.println("ApiUtils.getApi(TestApi.class).test(\"hehe\") = " + ApiUtils.getApi(TestApi.class).test("hehe"));
+    }
+
+    @Test
+    public void toString_() {
+        System.out.println("ApiUtils.toString_() = " + ApiUtils.toString_());
+    }
+
+    @ApiUtils.Api
+    public static class TestApiImpl extends TestApi {
+
+        @Override
+        public String test(String param) {
+            System.out.println("param = " + param);
+            return "haha";
+        }
+
+    }
+
+    public static abstract class TestApi extends ApiUtils.BaseApi {
+
+        public abstract String test(String name);
+
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/ArrayUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ArrayUtilsTest.java
new file mode 100644
index 0000000000..f55e544916
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ArrayUtilsTest.java
@@ -0,0 +1,210 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/12
+ *     desc  : test ArrayUtils
+ * </pre>
+ */
+public class ArrayUtilsTest extends BaseTest {
+
+    @Test
+    public void newArray() {
+//        System.out.println(ArrayUtils.toString(ArrayUtils.newArray(null)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newArray((String) null)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newArray(0, 1, 2, 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newLongArray(0, 1, 2, 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newIntArray(0, 1, 2, 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newShortArray((short) 0, (short) 1, (short) 2, (short) 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newCharArray('0', '1', '2', '3')));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newByteArray((byte) 0, (byte) 1, (byte) 2, (byte) 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newDoubleArray(0, 1, 2, 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newFloatArray(0, 1, 2, 3)));
+        System.out.println(ArrayUtils.toString(ArrayUtils.newBooleanArray(false, true, false, true)));
+    }
+
+    @Test
+    public void isEmpty() {
+        Object nullArr = null;
+        Object emptyArr = new int[]{};
+        Assert.assertTrue(ArrayUtils.isEmpty(nullArr));
+        Assert.assertTrue(ArrayUtils.isEmpty(emptyArr));
+        Assert.assertFalse(ArrayUtils.isEmpty(new int[]{1}));
+    }
+
+    @Test
+    public void getLength() {
+        Object nullArr = null;
+        Object emptyArr = new int[]{};
+        Assert.assertEquals(0, ArrayUtils.getLength(nullArr));
+        Assert.assertEquals(0, ArrayUtils.getLength(emptyArr));
+        Assert.assertEquals(1, ArrayUtils.getLength(new int[]{1}));
+    }
+
+    @Test
+    public void isSameLength() {
+        Object emptyArr1 = new int[]{};
+        Assert.assertTrue(ArrayUtils.isSameLength(null, emptyArr1));
+        Assert.assertTrue(ArrayUtils.isSameLength(new boolean[0], emptyArr1));
+    }
+
+    @Test
+    public void get() {
+        Object emptyArr1 = new int[]{0, 1, 2};
+        Assert.assertEquals(0, ArrayUtils.get(emptyArr1, 0));
+        Assert.assertEquals(1, ArrayUtils.get(emptyArr1, 1));
+        ArrayUtils.get(emptyArr1, 4);
+    }
+
+    @Test
+    public void getOrDefault() {
+        Object array = new int[]{0, 1, 2};
+        Assert.assertEquals(0, ArrayUtils.get(array, 0));
+        Assert.assertEquals(1, ArrayUtils.get(array, 1));
+        Assert.assertEquals(-1, ArrayUtils.get(array, 4, -1));
+        Assert.assertNull(ArrayUtils.get(array, 4));
+    }
+
+    @Test
+    public void set() {
+        int[] array = new int[]{0, -1, 2};
+        ArrayUtils.set(array, 1, 1);
+        Assert.assertArrayEquals(new int[]{0, 1, 2}, array);
+    }
+
+    @Test
+    public void equals() {
+        Assert.assertTrue(ArrayUtils.equals(null, (Object[]) null));
+    }
+
+    @Test
+    public void reverse() {
+        int[] array = new int[]{0, 1, 2, 3};
+        ArrayUtils.reverse(array);
+        Assert.assertArrayEquals(new int[]{3, 2, 1, 0}, array);
+    }
+
+    @Test
+    public void copy() {
+        int[] array = new int[]{0, 1, 2, 3};
+        int[] copy = ArrayUtils.copy(array);
+        Assert.assertArrayEquals(array, copy);
+        Assert.assertNotSame(array, copy);
+    }
+
+    @Test
+    public void subArray() {
+        int[] array = new int[]{0, 1, 2, 3};
+        int[] subArray = ArrayUtils.subArray(array, 1, 3);
+        Assert.assertArrayEquals(new int[]{1, 2}, subArray);
+    }
+
+    @Test
+    public void add() {
+        int[] array = new int[]{0, 1, 2, 3};
+        int[] addLastOne = ArrayUtils.add(array, 4);
+        int[] addFirstOne = ArrayUtils.add(array, 0, -1);
+        int[] addArr = ArrayUtils.add(array, new int[]{4, 5});
+        int[] addFirstArr = ArrayUtils.add(array, 0, new int[]{-2, -1});
+        int[] addMidArr = ArrayUtils.add(array, 2, new int[]{1, 2});
+        Assert.assertArrayEquals(new int[]{0, 1, 2, 3, 4}, addLastOne);
+        Assert.assertArrayEquals(new int[]{-1, 0, 1, 2, 3}, addFirstOne);
+        Assert.assertArrayEquals(new int[]{0, 1, 2, 3, 4, 5}, addArr);
+        Assert.assertArrayEquals(new int[]{-2, -1, 0, 1, 2, 3}, addFirstArr);
+        Assert.assertArrayEquals(new int[]{0, 1, 1, 2, 2, 3}, addMidArr);
+    }
+
+    @Test
+    public void remove() {
+        int[] array = new int[]{0, 1, 2, 3};
+        int[] remove = ArrayUtils.remove(array, 0);
+        Assert.assertArrayEquals(new int[]{1, 2, 3}, remove);
+    }
+
+    @Test
+    public void removeElement() {
+        int[] array = new int[]{0, 1, 2, 3};
+        int[] remove = ArrayUtils.removeElement(array, 0);
+        Assert.assertArrayEquals(new int[]{1, 2, 3}, remove);
+    }
+
+    @Test
+    public void indexOf() {
+        int[] array = new int[]{0, 1, 2, 3};
+        int i = ArrayUtils.indexOf(array, 0);
+        int i1 = ArrayUtils.indexOf(array, -1);
+        int i2 = ArrayUtils.indexOf(array, 0, 1);
+        Assert.assertEquals(0, i);
+        Assert.assertEquals(-1, i1);
+        Assert.assertEquals(-1, i2);
+    }
+
+    @Test
+    public void lastIndexOf() {
+        int[] array = new int[]{0, 1, 2, 3, 0};
+        int i = ArrayUtils.lastIndexOf(array, 0);
+        int i1 = ArrayUtils.lastIndexOf(array, -1);
+        int i2 = ArrayUtils.lastIndexOf(array, 0, 1);
+        Assert.assertEquals(4, i);
+        Assert.assertEquals(-1, i1);
+        Assert.assertEquals(0, i2);
+    }
+
+    @Test
+    public void contains() {
+        int[] array = new int[]{0, 1, 2, 3};
+        Assert.assertTrue(ArrayUtils.contains(array, 0));
+        Assert.assertFalse(ArrayUtils.contains(array, 4));
+    }
+
+    @Test
+    public void toPrimitive() {
+        int[] primitiveArray = new int[]{0, 1, 2, 3};
+        Integer[] array = new Integer[]{0, 1, 2, 3};
+        Assert.assertArrayEquals(primitiveArray, ArrayUtils.toPrimitive(array));
+        int[] primitiveArray1 = new int[]{0, 1, 2, 3, 0};
+        Integer[] array1 = new Integer[]{0, 1, 2, 3, null};
+        Assert.assertArrayEquals(primitiveArray1, ArrayUtils.toPrimitive(array1, 0));
+    }
+
+    @Test
+    public void toObject() {
+        int[] primitiveArray = new int[]{0, 1, 2, 3};
+        Integer[] array = new Integer[]{0, 1, 2, 3};
+        Assert.assertArrayEquals(array, ArrayUtils.toObject(primitiveArray));
+    }
+
+    @Test
+    public void asList() {
+//        Assert.assertEquals(0, ArrayUtils.asList(null).size());
+
+        List<Integer> list = ArrayUtils.asList(1, 2, 3, 4);
+        System.out.println(list);
+    }
+
+    @Test
+    public void sort() {
+        int[] ints = {2, 1, 0, 1, 2, 3};
+        ArrayUtils.sort(ints);
+        System.out.println(ArrayUtils.toString(ints));
+    }
+
+    @Test
+    public void forAllDo() {
+        ArrayUtils.forAllDo(null, null);
+        int[] array = new int[]{0, 1, 2, 3};
+        ArrayUtils.forAllDo(array, new ArrayUtils.Closure<Integer>() {
+            @Override
+            public void execute(int index, Integer item) {
+                System.out.println(index + ", " + item);
+            }
+        });
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/BaseTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/BaseTest.java
new file mode 100644
index 0000000000..ebaa83564d
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/BaseTest.java
@@ -0,0 +1,45 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowLog;
+
+import java.util.concurrent.Executor;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/08/03
+ *     desc  :
+ * </pre>
+ */
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = Config.NONE, shadows = {ShadowLog.class})
+public class BaseTest {
+
+    @BusUtils.Bus(tag = "base")
+    public void noParamFun(int i) {
+        System.out.println("base" + i);
+    }
+
+    public BaseTest() {
+        ShadowLog.stream = System.out;
+        ThreadUtils.setDeliver(new Executor() {
+            @Override
+            public void execute(@NonNull Runnable command) {
+                command.run();
+            }
+        });
+        Utils.init(RuntimeEnvironment.application);
+    }
+
+    @Test
+    public void test() throws Exception {
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsTest.java
new file mode 100644
index 0000000000..9e69a2fbae
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsTest.java
@@ -0,0 +1,328 @@
+package com.blankj.utilcode.util;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.concurrent.CountDownLatch;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/11
+ *     desc  :
+ * </pre>
+ */
+public class BusUtilsTest extends BaseTest {
+
+    private static final String TAG_NO_PARAM         = "TagNoParam";
+    private static final String TAG_ONE_PARAM        = "TagOneParam";
+    private static final String TAG_NO_PARAM_STICKY  = "TagNoParamSticky";
+    private static final String TAG_ONE_PARAM_STICKY = "TagOneParamSticky";
+
+    private static final String TAG_IO     = "TAG_IO";
+    private static final String TAG_CPU    = "TAG_CPU";
+    private static final String TAG_CACHED = "TAG_CACHED";
+    private static final String TAG_SINGLE = "TAG_SINGLE";
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM)
+    public void noParamFun() {
+        System.out.println("noParam");
+    }
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM)
+    public void noParamSameTagFun() {
+        System.out.println("sameTag: noParam");
+    }
+
+    @BusUtils.Bus(tag = TAG_ONE_PARAM)
+    public void oneParamFun(String param) {
+        System.out.println(param);
+    }
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM_STICKY, sticky = true)
+    public void foo() {
+        System.out.println("foo");
+    }
+
+    @BusUtils.Bus(tag = TAG_ONE_PARAM_STICKY, sticky = true)
+    public void oneParamStickyFun(Callback callback) {
+        if (callback != null) {
+            System.out.println(callback.call());
+        }
+    }
+
+    @BusUtils.Bus(tag = TAG_IO, threadMode = BusUtils.ThreadMode.IO)
+    public void ioFun(CountDownLatch latch) {
+        System.out.println("Thread.currentThread() = " + Thread.currentThread());
+        latch.countDown();
+    }
+
+    @BusUtils.Bus(tag = TAG_CPU, threadMode = BusUtils.ThreadMode.CPU)
+    public void cpuFun(CountDownLatch latch) {
+        System.out.println("Thread.currentThread() = " + Thread.currentThread());
+        latch.countDown();
+    }
+
+    @BusUtils.Bus(tag = TAG_CACHED, threadMode = BusUtils.ThreadMode.CACHED)
+    public void cachedFun(CountDownLatch latch) {
+        System.out.println("Thread.currentThread() = " + Thread.currentThread());
+        latch.countDown();
+    }
+
+    @BusUtils.Bus(tag = TAG_SINGLE, threadMode = BusUtils.ThreadMode.SINGLE)
+    public void singleFun(CountDownLatch latch) {
+        System.out.println("Thread.currentThread() = " + Thread.currentThread());
+        latch.countDown();
+    }
+
+    @Before
+    public void setUp() throws Exception {
+        BusUtils.registerBus4Test(TAG_NO_PARAM, BusUtilsTest.class.getName(), "noParamFun", "", "", false, "POSTING", 0);
+        BusUtils.registerBus4Test(TAG_ONE_PARAM, BusUtilsTest.class.getName(), "oneParamFun", String.class.getName(), "param", false, "POSTING", 0);
+        BusUtils.registerBus4Test(TAG_NO_PARAM_STICKY, BusUtilsTest.class.getName(), "noParamStickyFun", "", "", true, "POSTING", 0);
+        BusUtils.registerBus4Test(TAG_NO_PARAM_STICKY, BusUtilsTest.class.getName(), "foo", "", "", true, "POSTING", 0);
+        BusUtils.registerBus4Test(TAG_ONE_PARAM_STICKY, BusUtilsTest.class.getName(), "oneParamStickyFun", Callback.class.getName(), "callback", true, "POSTING", 0);
+
+        BusUtils.registerBus4Test(TAG_IO, BusUtilsTest.class.getName(), "ioFun", CountDownLatch.class.getName(), "latch", false, "IO", 0);
+        BusUtils.registerBus4Test(TAG_CPU, BusUtilsTest.class.getName(), "cpuFun", CountDownLatch.class.getName(), "latch", false, "CPU", 0);
+        BusUtils.registerBus4Test(TAG_CACHED, BusUtilsTest.class.getName(), "cachedFun", CountDownLatch.class.getName(), "latch", false, "CACHED", 0);
+        BusUtils.registerBus4Test(TAG_SINGLE, BusUtilsTest.class.getName(), "singleFun", CountDownLatch.class.getName(), "latch", false, "SINGLE", 0);
+    }
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM_STICKY, sticky = true)
+    public void noParamStickyFun() {
+//        BusUtils.removeSticky(TAG_NO_PARAM_STICKY);
+        System.out.println("noParamSticky");
+    }
+
+    @Subscribe(sticky = true)
+    public void eventBusFun(String param) {
+        System.out.println(param);
+    }
+
+    @Subscribe(sticky = true)
+    public void eventBusFun1(String param) {
+        System.out.println("foo");
+    }
+
+    @Test
+    public void testEventBusSticky() {
+        EventBus.getDefault().postSticky("test");
+        System.out.println("----");
+
+        BusUtilsTest test = new BusUtilsTest();
+        EventBus.getDefault().register(new BusUtilsTest());
+        EventBus.getDefault().register(new BusUtilsTest());
+        EventBus.getDefault().register(new BusUtilsTest());
+
+        System.out.println("----");
+
+        EventBus.getDefault().postSticky("test");
+        EventBus.getDefault().postSticky("test");
+    }
+
+    @Test
+    public void testSticky() {
+        BusUtils.postSticky(TAG_NO_PARAM_STICKY);
+        System.out.println("----");
+
+        BusUtilsTest test = new BusUtilsTest();
+        BusUtils.register(new BusUtilsTest());
+        BusUtils.register(new BusUtilsTest());
+        BusUtils.register(new BusUtilsTest());
+
+        System.out.println("----");
+
+        BusUtils.post(TAG_NO_PARAM_STICKY);
+//        BusUtils.post(TAG_NO_PARAM_STICKY);
+    }
+
+    @Test
+    public void testMultiThread() {
+        final BusUtilsTest test = new BusUtilsTest();
+//        for (int i = 0; i < 100; i++) {
+//            new Thread(new Runnable() {
+//                @Override
+//                public void run() {
+//                    BusUtils.register(test);
+//                }
+//            }).start();
+//        }
+//        CountDownLatch countDownLatch = new CountDownLatch(1);
+//        BusUtils.register(test);
+//        for (int i = 0; i < 100; i++) {
+//            new Thread(new Runnable() {
+//                @Override
+//                public void run() {
+//                    BusUtils.post(TAG_NO_PARAM);
+//                }
+//            }).start();
+//        }
+//        try {
+//            countDownLatch.await(1, TimeUnit.SECONDS);
+//        } catch (InterruptedException e) {
+//            e.printStackTrace();
+//        }
+//        BusUtils.unregister(test);
+//        for (int i = 0; i < 100; i++) {
+//            new Thread(new Runnable() {
+//                @Override
+//                public void run() {
+//                    BusUtils.unregister(test);
+//                }
+//            }).start();
+//        }
+//        for (int i = 0; i < 100; i++) {
+//            final int finalI = i;
+//            new Thread(new Runnable() {
+//                @Override
+//                public void run() {
+//                    BusUtils.register(test);
+//                    BusUtils.post(TAG_ONE_PARAM, "" + finalI);
+//                    BusUtils.unregister(test);
+//                }
+//            }).start();
+//        }
+    }
+
+    @Test
+    public void registerAndUnregister() {
+        BusUtilsTest test = new BusUtilsTest();
+
+        BusUtils.post(TAG_NO_PARAM);
+        BusUtils.post(TAG_ONE_PARAM, "post to one param fun.");
+
+        BusUtils.register(test);
+
+        BusUtils.post(TAG_NO_PARAM);
+        BusUtils.post(TAG_ONE_PARAM, "Post to one param fun.");
+
+        BusUtils.unregister(test);
+
+        BusUtils.post(TAG_NO_PARAM);
+        BusUtils.post(TAG_ONE_PARAM, "Post to one param fun.");
+    }
+
+    @Test
+    public void post() {
+        BusUtilsTest test0 = new BusUtilsTest();
+        BusUtilsTest test1 = new BusUtilsTest();
+
+        BusUtils.register(test0);
+        BusUtils.register(test1);
+
+        BusUtils.post(TAG_NO_PARAM);
+        BusUtils.post(TAG_ONE_PARAM, "post to one param fun.");
+
+        BusUtils.unregister(test0);
+        BusUtils.unregister(test1);
+    }
+
+    @Test
+    public void postSticky() {
+        System.out.println("-----not sticky bus postSticky will be failed.-----");
+        BusUtils.postSticky(TAG_NO_PARAM);
+        BusUtils.postSticky(TAG_ONE_PARAM, "post to one param fun.");
+
+        System.out.println("\n-----sticky bus postSticky will be successful.-----");
+        BusUtils.postSticky(TAG_NO_PARAM_STICKY);
+        BusUtils.postSticky(TAG_ONE_PARAM_STICKY, new Callback() {
+            @Override
+            public String call() {
+                return "post to one param sticky fun.";
+            }
+        });
+        BusUtilsTest test = new BusUtilsTest();
+        System.out.println("\n-----register.-----");
+        BusUtils.register(test);
+
+        System.out.println("\n-----sticky post.-----");
+        BusUtils.postSticky(TAG_NO_PARAM);
+        BusUtils.postSticky(TAG_ONE_PARAM, "post to one param fun.");
+        BusUtils.postSticky(TAG_NO_PARAM_STICKY);
+        BusUtils.postSticky(TAG_ONE_PARAM_STICKY, new Callback() {
+            @Override
+            public String call() {
+                return "post to one param sticky fun.";
+            }
+        });
+
+        BusUtils.removeSticky(TAG_NO_PARAM_STICKY);
+        BusUtils.removeSticky(TAG_ONE_PARAM_STICKY);
+        BusUtils.unregister(test);
+    }
+
+    @Test
+    public void removeSticky() {
+        BusUtils.postSticky(TAG_NO_PARAM_STICKY);
+        BusUtils.postSticky(TAG_ONE_PARAM_STICKY, new Callback() {
+            @Override
+            public String call() {
+                return "post to one param sticky fun.";
+            }
+        });
+        BusUtilsTest test = new BusUtilsTest();
+        System.out.println("-----register.-----");
+        BusUtils.register(test);
+
+        BusUtils.unregister(test);
+        System.out.println("\n-----register.-----");
+        BusUtils.register(test);
+
+        System.out.println("\n-----remove sticky bus.-----");
+        BusUtils.removeSticky(TAG_NO_PARAM_STICKY);
+        BusUtils.removeSticky(TAG_ONE_PARAM_STICKY);
+        BusUtils.unregister(test);
+
+        System.out.println("\n-----register.-----");
+        BusUtils.register(test);
+        BusUtils.unregister(test);
+    }
+
+    @Test
+    public void testThreadMode() throws InterruptedException {
+        BusUtilsTest test = new BusUtilsTest();
+        CountDownLatch latch = new CountDownLatch(4);
+        BusUtils.register(test);
+
+        BusUtils.post(TAG_IO, latch);
+        BusUtils.post(TAG_CPU, latch);
+        BusUtils.post(TAG_CACHED, latch);
+        BusUtils.post(TAG_SINGLE, latch);
+
+        latch.await();
+        BusUtils.unregister(test);
+    }
+
+    @Test
+    public void toString_() {
+        System.out.println("BusUtils.toString_() = " + BusUtils.toString_());
+    }
+
+    @Test
+    public void testBase() {
+        BusUtils.registerBus4Test("base", BaseTest.class.getName(), "noParamFun", "int", "i", false, "POSTING", 0);
+
+        BaseTest t = new BusUtilsTest();
+        BusUtils.register(t);
+        BusUtils.post("base", 1);
+        BusUtils.unregister(t);
+    }
+
+    @Test
+    public void testSameTag() {
+        BusUtils.registerBus4Test(TAG_NO_PARAM, BusUtilsTest.class.getName(), "noParamSameTagFun", "", "", false, "POSTING", 2);
+
+        BusUtilsTest test = new BusUtilsTest();
+        BusUtils.register(test);
+        BusUtils.post(TAG_NO_PARAM);
+        BusUtils.unregister(test);
+    }
+
+    public interface Callback {
+        String call();
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsVsEventBusTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsVsEventBusTest.java
new file mode 100644
index 0000000000..3bd3272a17
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsVsEventBusTest.java
@@ -0,0 +1,206 @@
+package com.blankj.utilcode.util;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/14
+ *     desc  :
+ * </pre>
+ */
+public class BusUtilsVsEventBusTest extends BaseTest {
+
+    @Subscribe
+    public void eventBusFun(String param) {
+    }
+
+    @BusUtils.Bus(tag = "busUtilsFun")
+    public void busUtilsFun(String param) {
+    }
+
+    @Before
+    public void setUp() throws Exception {
+        // 这一步是在 AOP 的时候注入的，这里通过反射来注入 busUtilsFun 事件，效果是一样的
+        ReflectUtils getInstance = ReflectUtils.reflect(BusUtils.class).method("getInstance");
+        getInstance.method("registerBus", "busUtilsFun", BusUtilsVsEventBusTest.class.getName(), "busUtilsFun", String.class.getName(), "param", false, "POSTING");
+    }
+
+    /**
+     * 注册 10000 个订阅者，共执行 10 次取平均值
+     */
+//    @Test
+    public void compareRegister10000Times() {
+        final List<BusUtilsVsEventBusTest> eventBusTests = new ArrayList<>();
+        final List<BusUtilsVsEventBusTest> busUtilsTests = new ArrayList<>();
+
+        compareWithEventBus("Register 10000 times.", 10, 10000, new CompareCallback() {
+            @Override
+            public void runEventBus() {
+                BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+                EventBus.getDefault().register(test);
+                eventBusTests.add(test);
+            }
+
+            @Override
+            public void runBusUtils() {
+                BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+                BusUtils.register(test);
+                busUtilsTests.add(test);
+            }
+
+            @Override
+            public void restState() {
+                for (BusUtilsVsEventBusTest test : eventBusTests) {
+                    EventBus.getDefault().unregister(test);
+                }
+                eventBusTests.clear();
+
+                for (BusUtilsVsEventBusTest test : busUtilsTests) {
+                    BusUtils.unregister(test);
+                }
+                busUtilsTests.clear();
+            }
+        });
+    }
+
+    /**
+     * 向 1 个订阅者发送 * 1000000 次，共执行 10 次取平均值
+     */
+//    @Test
+    public void comparePostTo1Subscriber1000000Times() {
+        comparePostTemplate("Post to 1 subscriber 1000000 times.", 1, 1000000);
+    }
+
+    /**
+     * 向 100 个订阅者发送 * 100000 次，共执行 10 次取平均值
+     */
+//    @Test
+    public void comparePostTo100Subscribers100000Times() {
+        comparePostTemplate("Post to 100 subscribers 100000 times.", 100, 100000);
+    }
+
+    private void comparePostTemplate(String name, int subscribeNum, int postTimes) {
+        final List<BusUtilsVsEventBusTest> tests = new ArrayList<>();
+        for (int i = 0; i < subscribeNum; i++) {
+            BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+            EventBus.getDefault().register(test);
+            BusUtils.register(test);
+            tests.add(test);
+        }
+
+        compareWithEventBus(name, 10, postTimes, new CompareCallback() {
+            @Override
+            public void runEventBus() {
+                EventBus.getDefault().post("EventBus");
+            }
+
+            @Override
+            public void runBusUtils() {
+                BusUtils.post("busUtilsFun", "BusUtils");
+            }
+
+            @Override
+            public void restState() {
+
+            }
+        });
+        for (BusUtilsVsEventBusTest test : tests) {
+            EventBus.getDefault().unregister(test);
+            BusUtils.unregister(test);
+        }
+    }
+
+    /**
+     * 注销 10000 个订阅者，共执行 10 次取平均值
+     */
+//    @Test
+    public void compareUnregister10000Times() {
+        final List<BusUtilsVsEventBusTest> tests = new ArrayList<>();
+        for (int i = 0; i < 10000; i++) {
+            BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+            EventBus.getDefault().register(test);
+            BusUtils.register(test);
+            tests.add(test);
+        }
+
+        compareWithEventBus("Unregister 10000 times.", 10, 1, new CompareCallback() {
+            @Override
+            public void runEventBus() {
+                for (BusUtilsVsEventBusTest test : tests) {
+                    EventBus.getDefault().unregister(test);
+                }
+            }
+
+            @Override
+            public void runBusUtils() {
+                for (BusUtilsVsEventBusTest test : tests) {
+                    BusUtils.unregister(test);
+                }
+            }
+
+            @Override
+            public void restState() {
+                for (BusUtilsVsEventBusTest test : tests) {
+                    EventBus.getDefault().register(test);
+                    BusUtils.register(test);
+                }
+            }
+        });
+
+        for (BusUtilsVsEventBusTest test : tests) {
+            EventBus.getDefault().unregister(test);
+            BusUtils.unregister(test);
+        }
+    }
+
+    /**
+     * @param name       传入的测试函数名
+     * @param sampleSize 样本的数量
+     * @param times      每次执行的次数
+     * @param callback   比较的回调函数
+     */
+    private void compareWithEventBus(String name, int sampleSize, int times, CompareCallback callback) {
+        long[][] dur = new long[2][sampleSize];
+        for (int i = 0; i < sampleSize; i++) {
+            long cur = System.currentTimeMillis();
+            for (int j = 0; j < times; j++) {
+                callback.runEventBus();
+            }
+            dur[0][i] = System.currentTimeMillis() - cur;
+
+            cur = System.currentTimeMillis();
+            for (int j = 0; j < times; j++) {
+                callback.runBusUtils();
+            }
+            dur[1][i] = System.currentTimeMillis() - cur;
+            callback.restState();
+        }
+        long eventBusAverageTime = 0;
+        long busUtilsAverageTime = 0;
+        for (int i = 0; i < sampleSize; i++) {
+            eventBusAverageTime += dur[0][i];
+            busUtilsAverageTime += dur[1][i];
+        }
+        System.out.println(
+                name +
+                "\nEventBusCostTime: " + eventBusAverageTime / sampleSize +
+                "\nBusUtilsCostTime: " + busUtilsAverageTime / sampleSize
+        );
+    }
+
+    public interface CompareCallback {
+        void runEventBus();
+
+        void runBusUtils();
+
+        void restState();
+    }
+}
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskStaticUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskStaticUtilsTest.java
new file mode 100644
index 0000000000..7fcff6beb1
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskStaticUtilsTest.java
@@ -0,0 +1,366 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.Serializable;
+
+import static com.blankj.utilcode.util.TestConfig.FILE_SEP;
+import static com.blankj.utilcode.util.TestConfig.PATH_CACHE;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/04
+ *     desc  : test CacheDiskStaticUtils
+ * </pre>
+ */
+public class CacheDiskStaticUtilsTest extends BaseTest {
+
+    private static final String           DISK1_PATH        = PATH_CACHE + "disk1" + FILE_SEP;
+    private static final String           DISK2_PATH        = PATH_CACHE + "disk2" + FILE_SEP;
+    private static final File             DISK1_FILE        = new File(DISK1_PATH);
+    private static final File             DISK2_FILE        = new File(DISK2_PATH);
+    private static final CacheDiskUtils   CACHE_DISK_UTILS1 = CacheDiskUtils.getInstance(DISK1_FILE);
+    private static final CacheDiskUtils   CACHE_DISK_UTILS2 = CacheDiskUtils.getInstance(DISK2_FILE);
+    private static final byte[]           BYTES             = "CacheDiskUtils".getBytes();
+    private static final String           STRING            = "CacheDiskUtils";
+    private static final JSONObject       JSON_OBJECT       = new JSONObject();
+    private static final JSONArray        JSON_ARRAY        = new JSONArray();
+    private static final ParcelableTest   PARCELABLE_TEST   = new ParcelableTest("Blankj", "CacheDiskUtils");
+    private static final SerializableTest SERIALIZABLE_TEST = new SerializableTest("Blankj", "CacheDiskUtils");
+    private static final Bitmap           BITMAP            = Bitmap.createBitmap(100, 100, Bitmap.Config.RGB_565);
+    private static final Drawable         DRAWABLE          = new BitmapDrawable(Utils.getApp().getResources(), BITMAP);
+
+    static {
+        try {
+            JSON_OBJECT.put("class", "CacheDiskUtils");
+            JSON_OBJECT.put("author", "Blankj");
+            JSON_ARRAY.put(0, JSON_OBJECT);
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Before
+    public void setUp() {
+        CacheDiskStaticUtils.put("bytes1", BYTES, 60 * CacheDiskUtils.SEC, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("string1", STRING, 60 * CacheDiskUtils.MIN, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("jsonObject1", JSON_OBJECT, 24 * CacheDiskUtils.HOUR, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("jsonArray1", JSON_ARRAY, 365 * CacheDiskUtils.DAY, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("bitmap1", BITMAP, 60 * CacheDiskUtils.SEC, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("drawable1", DRAWABLE, 60 * CacheDiskUtils.SEC, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("parcelable1", PARCELABLE_TEST, 60 * CacheDiskUtils.SEC, CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.put("serializable1", SERIALIZABLE_TEST, 60 * CacheDiskUtils.SEC, CACHE_DISK_UTILS1);
+
+        CacheDiskStaticUtils.put("bytes2", BYTES, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("string2", STRING, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("jsonObject2", JSON_OBJECT, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("jsonArray2", JSON_ARRAY, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("bitmap2", BITMAP, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("drawable2", DRAWABLE, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("parcelable2", PARCELABLE_TEST, CACHE_DISK_UTILS2);
+        CacheDiskStaticUtils.put("serializable2", SERIALIZABLE_TEST, CACHE_DISK_UTILS2);
+    }
+
+    @Test
+    public void getBytes() {
+        assertEquals(STRING, new String(CacheDiskStaticUtils.getBytes("bytes1", CACHE_DISK_UTILS1)));
+        assertEquals(STRING, new String(CacheDiskStaticUtils.getBytes("bytes1", null, CACHE_DISK_UTILS1)));
+        assertNull(CacheDiskStaticUtils.getBytes("bytes2", null, CACHE_DISK_UTILS1));
+
+        assertEquals(STRING, new String(CacheDiskStaticUtils.getBytes("bytes2", CACHE_DISK_UTILS2)));
+        assertEquals(STRING, new String(CacheDiskStaticUtils.getBytes("bytes2", null, CACHE_DISK_UTILS2)));
+        assertNull(CacheDiskStaticUtils.getBytes("bytes1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getString() {
+        assertEquals(STRING, CacheDiskStaticUtils.getString("string1", CACHE_DISK_UTILS1));
+        assertEquals(STRING, CacheDiskStaticUtils.getString("string1", null, CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getString("string2", null, CACHE_DISK_UTILS1));
+
+        assertEquals(STRING, CacheDiskStaticUtils.getString("string2", CACHE_DISK_UTILS2));
+        assertEquals(STRING, CacheDiskStaticUtils.getString("string2", null, CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getString("string1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getJSONObject() {
+        assertEquals(JSON_OBJECT.toString(), CacheDiskStaticUtils.getJSONObject("jsonObject1", CACHE_DISK_UTILS1).toString());
+        assertEquals(JSON_OBJECT.toString(), CacheDiskStaticUtils.getJSONObject("jsonObject1", null, CACHE_DISK_UTILS1).toString());
+        assertNull(CacheDiskStaticUtils.getJSONObject("jsonObject2", null, CACHE_DISK_UTILS1));
+
+        assertEquals(JSON_OBJECT.toString(), CacheDiskStaticUtils.getJSONObject("jsonObject2", CACHE_DISK_UTILS2).toString());
+        assertEquals(JSON_OBJECT.toString(), CacheDiskStaticUtils.getJSONObject("jsonObject2", null, CACHE_DISK_UTILS2).toString());
+        assertNull(CacheDiskStaticUtils.getJSONObject("jsonObject1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getJSONArray() {
+        assertEquals(JSON_ARRAY.toString(), CacheDiskStaticUtils.getJSONArray("jsonArray1", CACHE_DISK_UTILS1).toString());
+        assertEquals(JSON_ARRAY.toString(), CacheDiskStaticUtils.getJSONArray("jsonArray1", null, CACHE_DISK_UTILS1).toString());
+        assertNull(CacheDiskStaticUtils.getJSONArray("jsonArray2", null, CACHE_DISK_UTILS1));
+
+        assertEquals(JSON_ARRAY.toString(), CacheDiskStaticUtils.getJSONArray("jsonArray2", CACHE_DISK_UTILS2).toString());
+        assertEquals(JSON_ARRAY.toString(), CacheDiskStaticUtils.getJSONArray("jsonArray2", null, CACHE_DISK_UTILS2).toString());
+        assertNull(CacheDiskStaticUtils.getJSONArray("jsonArray1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getBitmap() {
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CacheDiskStaticUtils.getBitmap("bitmap1", CACHE_DISK_UTILS1), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CacheDiskStaticUtils.getBitmap("bitmap1", null, CACHE_DISK_UTILS1), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CacheDiskStaticUtils.getBitmap("bitmap2", null, CACHE_DISK_UTILS1));
+
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CacheDiskStaticUtils.getBitmap("bitmap2", CACHE_DISK_UTILS2), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CacheDiskStaticUtils.getBitmap("bitmap2", null, CACHE_DISK_UTILS2), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CacheDiskStaticUtils.getBitmap("bitmap1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getDrawable() {
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CacheDiskStaticUtils.getDrawable("drawable1", CACHE_DISK_UTILS1), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CacheDiskStaticUtils.getDrawable("drawable1", null, CACHE_DISK_UTILS1), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CacheDiskStaticUtils.getDrawable("drawable2", null, CACHE_DISK_UTILS1));
+
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CacheDiskStaticUtils.getDrawable("drawable2", CACHE_DISK_UTILS2), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CacheDiskStaticUtils.getDrawable("drawable2", null, CACHE_DISK_UTILS2), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CacheDiskStaticUtils.getDrawable("drawable1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getParcel() {
+        assertEquals(PARCELABLE_TEST, CacheDiskStaticUtils.getParcelable("parcelable1", ParcelableTest.CREATOR, CACHE_DISK_UTILS1));
+        assertEquals(PARCELABLE_TEST, CacheDiskStaticUtils.getParcelable("parcelable1", ParcelableTest.CREATOR, null, CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getParcelable("parcelable2", ParcelableTest.CREATOR, null, CACHE_DISK_UTILS1));
+
+        assertEquals(PARCELABLE_TEST, CacheDiskStaticUtils.getParcelable("parcelable2", ParcelableTest.CREATOR, CACHE_DISK_UTILS2));
+        assertEquals(PARCELABLE_TEST, CacheDiskStaticUtils.getParcelable("parcelable2", ParcelableTest.CREATOR, null, CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getParcelable("parcelable1", ParcelableTest.CREATOR, null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getSerializable() {
+        assertEquals(SERIALIZABLE_TEST, CacheDiskStaticUtils.getSerializable("serializable1", CACHE_DISK_UTILS1));
+        assertEquals(SERIALIZABLE_TEST, CacheDiskStaticUtils.getSerializable("serializable1", null, CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getSerializable("parcelable2", null, CACHE_DISK_UTILS1));
+
+        assertEquals(SERIALIZABLE_TEST, CacheDiskStaticUtils.getSerializable("serializable2", CACHE_DISK_UTILS2));
+        assertEquals(SERIALIZABLE_TEST, CacheDiskStaticUtils.getSerializable("serializable2", null, CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getSerializable("parcelable1", null, CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getCacheSize() {
+        assertEquals(FileUtils.getLength(DISK1_FILE), CacheDiskStaticUtils.getCacheSize(CACHE_DISK_UTILS1));
+
+        assertEquals(FileUtils.getLength(DISK2_FILE), CacheDiskStaticUtils.getCacheSize(CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void getCacheCount() {
+        assertEquals(8, CacheDiskStaticUtils.getCacheCount(CACHE_DISK_UTILS1));
+
+        assertEquals(8, CacheDiskStaticUtils.getCacheCount(CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void remove() {
+        assertNotNull(CacheDiskStaticUtils.getString("string1", CACHE_DISK_UTILS1));
+        CacheDiskStaticUtils.remove("string1", CACHE_DISK_UTILS1);
+        assertNull(CacheDiskStaticUtils.getString("string1", CACHE_DISK_UTILS1));
+
+        assertNotNull(CacheDiskStaticUtils.getString("string2", CACHE_DISK_UTILS2));
+        CacheDiskStaticUtils.remove("string2", CACHE_DISK_UTILS2);
+        assertNull(CacheDiskStaticUtils.getString("string2", CACHE_DISK_UTILS2));
+    }
+
+    @Test
+    public void clear() {
+        assertNotNull(CacheDiskStaticUtils.getBytes("bytes1", CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getString("string1", CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getJSONObject("jsonObject1", CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getJSONArray("jsonArray1", CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getBitmap("bitmap1", CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getDrawable("drawable1", CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getParcelable("parcelable1", ParcelableTest.CREATOR, CACHE_DISK_UTILS1));
+        assertNotNull(CacheDiskStaticUtils.getSerializable("serializable1", CACHE_DISK_UTILS1));
+        CacheDiskStaticUtils.clear(CACHE_DISK_UTILS1);
+        assertNull(CacheDiskStaticUtils.getBytes("bytes1", CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getString("string1", CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getJSONObject("jsonObject1", CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getJSONArray("jsonArray1", CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getBitmap("bitmap1", CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getDrawable("drawable1", CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getParcelable("parcelable1", ParcelableTest.CREATOR, CACHE_DISK_UTILS1));
+        assertNull(CacheDiskStaticUtils.getSerializable("serializable1", CACHE_DISK_UTILS1));
+        assertEquals(0, CacheDiskStaticUtils.getCacheSize(CACHE_DISK_UTILS1));
+        assertEquals(0, CacheDiskStaticUtils.getCacheCount(CACHE_DISK_UTILS1));
+
+
+        assertNotNull(CacheDiskStaticUtils.getBytes("bytes2", CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getString("string2", CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getJSONObject("jsonObject2", CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getJSONArray("jsonArray2", CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getBitmap("bitmap2", CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getDrawable("drawable2", CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getParcelable("parcelable2", ParcelableTest.CREATOR, CACHE_DISK_UTILS2));
+        assertNotNull(CacheDiskStaticUtils.getSerializable("serializable2", CACHE_DISK_UTILS2));
+        CacheDiskStaticUtils.clear(CACHE_DISK_UTILS2);
+        assertNull(CacheDiskStaticUtils.getBytes("bytes2", CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getString("string2", CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getJSONObject("jsonObject2", CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getJSONArray("jsonArray2", CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getBitmap("bitmap2", CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getDrawable("drawable2", CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getParcelable("parcelable2", ParcelableTest.CREATOR, CACHE_DISK_UTILS2));
+        assertNull(CacheDiskStaticUtils.getSerializable("serializable2", CACHE_DISK_UTILS2));
+        assertEquals(0, CacheDiskStaticUtils.getCacheSize(CACHE_DISK_UTILS2));
+        assertEquals(0, CacheDiskStaticUtils.getCacheCount(CACHE_DISK_UTILS2));
+    }
+
+    @After
+    public void tearDown() {
+        CacheDiskStaticUtils.clear(CACHE_DISK_UTILS1);
+        CacheDiskStaticUtils.clear(CACHE_DISK_UTILS2);
+    }
+
+    static class ParcelableTest implements Parcelable {
+        String author;
+        String className;
+
+        public String getAuthor() {
+            return author;
+        }
+
+        public void setAuthor(String author) {
+            this.author = author;
+        }
+
+        public String getClassName() {
+            return className;
+        }
+
+        public void setClassName(String className) {
+            this.className = className;
+        }
+
+        ParcelableTest(String author, String className) {
+            this.author = author;
+            this.className = className;
+        }
+
+        ParcelableTest(Parcel in) {
+            author = in.readString();
+            className = in.readString();
+        }
+
+        @Override
+        public void writeToParcel(Parcel dest, int flags) {
+            dest.writeString(author);
+            dest.writeString(className);
+        }
+
+        @Override
+        public int describeContents() {
+            return 0;
+        }
+
+        public static final Creator<ParcelableTest> CREATOR = new Creator<ParcelableTest>() {
+            @Override
+            public ParcelableTest createFromParcel(Parcel in) {
+                return new ParcelableTest(in);
+            }
+
+            @Override
+            public ParcelableTest[] newArray(int size) {
+                return new ParcelableTest[size];
+            }
+        };
+
+        @Override
+        public boolean equals(Object obj) {
+            return obj instanceof ParcelableTest
+                    && ((ParcelableTest) obj).author.equals(author)
+                    && ((ParcelableTest) obj).className.equals(className);
+        }
+    }
+
+    static class SerializableTest implements Serializable {
+
+        private static final long serialVersionUID = -5806706668736895024L;
+
+        String author;
+        String className;
+
+        SerializableTest(String author, String className) {
+            this.author = author;
+            this.className = className;
+        }
+
+        public String getAuthor() {
+            return author;
+        }
+
+        public void setAuthor(String author) {
+            this.author = author;
+        }
+
+        public String getClassName() {
+            return className;
+        }
+
+        public void setClassName(String className) {
+            this.className = className;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            return obj instanceof SerializableTest
+                    && ((SerializableTest) obj).author.equals(author)
+                    && ((SerializableTest) obj).className.equals(className);
+        }
+    }
+}
+
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
similarity index 78%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
index 65ebcc16dc..d772225da6 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
@@ -7,6 +7,7 @@
 import android.os.Parcelable;
 
 import org.json.JSONArray;
+import org.json.JSONException;
 import org.json.JSONObject;
 import org.junit.After;
 import org.junit.Before;
@@ -17,9 +18,11 @@
 
 import static com.blankj.utilcode.util.TestConfig.FILE_SEP;
 import static com.blankj.utilcode.util.TestConfig.PATH_CACHE;
+import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
 
 /**
  * <pre>
@@ -46,12 +49,18 @@ public class CacheDiskUtilsTest extends BaseTest {
     private static final Bitmap           BITMAP            = Bitmap.createBitmap(100, 100, Bitmap.Config.RGB_565);
     private static final Drawable         DRAWABLE          = new BitmapDrawable(Utils.getApp().getResources(), BITMAP);
 
-    @Before
-    public void setUp() throws Exception {
-        JSON_OBJECT.put("class", "CacheDiskUtils");
-        JSON_OBJECT.put("author", "Blankj");
-        JSON_ARRAY.put(0, JSON_OBJECT);
+    static {
+        try {
+            JSON_OBJECT.put("class", "CacheDiskUtils");
+            JSON_OBJECT.put("author", "Blankj");
+            JSON_ARRAY.put(0, JSON_OBJECT);
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+    }
 
+    @Before
+    public void setUp() {
         CACHE_DISK_UTILS1.put("bytes1", BYTES, 60 * CacheDiskUtils.SEC);
         CACHE_DISK_UTILS1.put("string1", STRING, 60 * CacheDiskUtils.MIN);
         CACHE_DISK_UTILS1.put("jsonObject1", JSON_OBJECT, 24 * CacheDiskUtils.HOUR);
@@ -65,10 +74,10 @@ public void setUp() throws Exception {
         CACHE_DISK_UTILS2.put("string2", STRING);
         CACHE_DISK_UTILS2.put("jsonObject2", JSON_OBJECT);
         CACHE_DISK_UTILS2.put("jsonArray2", JSON_ARRAY);
-        CACHE_DISK_UTILS2.put("parcelable2", PARCELABLE_TEST);
-        CACHE_DISK_UTILS2.put("serializable2", SERIALIZABLE_TEST);
         CACHE_DISK_UTILS2.put("bitmap2", BITMAP);
         CACHE_DISK_UTILS2.put("drawable2", DRAWABLE);
+        CACHE_DISK_UTILS2.put("parcelable2", PARCELABLE_TEST);
+        CACHE_DISK_UTILS2.put("serializable2", SERIALIZABLE_TEST);
     }
 
     @Test
@@ -110,7 +119,6 @@ public void getJSONArray() {
         assertEquals(JSON_ARRAY.toString(), CACHE_DISK_UTILS1.getJSONArray("jsonArray1", null).toString());
         assertNull(CACHE_DISK_UTILS1.getJSONArray("jsonArray2", null));
 
-
         assertEquals(JSON_ARRAY.toString(), CACHE_DISK_UTILS2.getJSONArray("jsonArray2").toString());
         assertEquals(JSON_ARRAY.toString(), CACHE_DISK_UTILS2.getJSONArray("jsonArray2", null).toString());
         assertNull(CACHE_DISK_UTILS2.getJSONArray("jsonArray1", null));
@@ -118,26 +126,49 @@ public void getJSONArray() {
 
     @Test
     public void getBitmap() {
-        String bitmapString = "Bitmap (100 x 100) compressed as PNG with quality 100";
-        assertEquals(bitmapString, CACHE_DISK_UTILS1.getString("bitmap1"));
-        assertEquals(bitmapString, CACHE_DISK_UTILS1.getString("bitmap1", null));
-        assertNull(CACHE_DISK_UTILS1.getString("bitmap2", null));
-
-        assertEquals(bitmapString, CACHE_DISK_UTILS2.getString("bitmap2"));
-        assertEquals(bitmapString, CACHE_DISK_UTILS2.getString("bitmap2", null));
-        assertNull(CACHE_DISK_UTILS2.getString("bitmap1", null));
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CACHE_DISK_UTILS1.getBitmap("bitmap1"), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CACHE_DISK_UTILS1.getBitmap("bitmap1", null), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CACHE_DISK_UTILS1.getBitmap("bitmap2", null));
+
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CACHE_DISK_UTILS2.getBitmap("bitmap2"), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CACHE_DISK_UTILS2.getBitmap("bitmap2", null), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CACHE_DISK_UTILS2.getBitmap("bitmap1", null));
     }
 
     @Test
     public void getDrawable() {
         String bitmapString = "Bitmap (100 x 100) compressed as PNG with quality 100";
-        assertEquals(bitmapString, CACHE_DISK_UTILS1.getString("drawable1"));
-        assertEquals(bitmapString, CACHE_DISK_UTILS1.getString("drawable1", null));
-        assertNull(CACHE_DISK_UTILS1.getString("drawable2", null));
-
-        assertEquals(bitmapString, CACHE_DISK_UTILS2.getString("drawable2"));
-        assertEquals(bitmapString, CACHE_DISK_UTILS2.getString("drawable2", null));
-        assertNull(CACHE_DISK_UTILS2.getString("drawable1", null));
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CACHE_DISK_UTILS1.getDrawable("drawable1"), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CACHE_DISK_UTILS1.getDrawable("drawable1", null), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CACHE_DISK_UTILS1.getDrawable("drawable2", null));
+
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CACHE_DISK_UTILS2.getDrawable("drawable2"), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CACHE_DISK_UTILS2.getDrawable("drawable2", null), Bitmap.CompressFormat.PNG, 100)
+        );
+        assertNull(CACHE_DISK_UTILS2.getDrawable("drawable1", null));
     }
 
     @Test
@@ -164,9 +195,11 @@ public void getSerializable() {
 
     @Test
     public void getCacheSize() {
-        assertEquals(FileUtils.getDirLength(DISK1_FILE), CACHE_DISK_UTILS1.getCacheSize());
+        System.out.println(FileUtils.getLength(DISK1_FILE));
+        assertEquals(FileUtils.getLength(DISK1_FILE), CACHE_DISK_UTILS1.getCacheSize());
 
-        assertEquals(FileUtils.getDirLength(DISK2_FILE), CACHE_DISK_UTILS2.getCacheSize());
+        System.out.println(FileUtils.getLength(DISK2_FILE));
+        assertEquals(FileUtils.getLength(DISK2_FILE), CACHE_DISK_UTILS2.getCacheSize());
     }
 
     @Test
@@ -179,7 +212,7 @@ public void getCacheCount() {
     @Test
     public void remove() {
         assertNotNull(CACHE_DISK_UTILS1.getString("string1"));
-        CACHE_DISK_UTILS1.remove("string1");
+        assertTrue(CACHE_DISK_UTILS1.remove("string1"));
         assertNull(CACHE_DISK_UTILS1.getString("string1"));
 
         assertNotNull(CACHE_DISK_UTILS2.getString("string2"));
@@ -193,8 +226,8 @@ public void clear() {
         assertNotNull(CACHE_DISK_UTILS1.getString("string1"));
         assertNotNull(CACHE_DISK_UTILS1.getJSONObject("jsonObject1"));
         assertNotNull(CACHE_DISK_UTILS1.getJSONArray("jsonArray1"));
-        assertNotNull(CACHE_DISK_UTILS1.getString("bitmap1"));
-        assertNotNull(CACHE_DISK_UTILS1.getString("drawable1"));
+        assertNotNull(CACHE_DISK_UTILS1.getBitmap("bitmap1"));
+        assertNotNull(CACHE_DISK_UTILS1.getDrawable("drawable1"));
         assertNotNull(CACHE_DISK_UTILS1.getParcelable("parcelable1", ParcelableTest.CREATOR));
         assertNotNull(CACHE_DISK_UTILS1.getSerializable("serializable1"));
         CACHE_DISK_UTILS1.clear();
@@ -202,8 +235,8 @@ public void clear() {
         assertNull(CACHE_DISK_UTILS1.getString("string1"));
         assertNull(CACHE_DISK_UTILS1.getJSONObject("jsonObject1"));
         assertNull(CACHE_DISK_UTILS1.getJSONArray("jsonArray1"));
-        assertNull(CACHE_DISK_UTILS1.getString("bitmap1"));
-        assertNull(CACHE_DISK_UTILS1.getString("drawable1"));
+        assertNull(CACHE_DISK_UTILS1.getBitmap("bitmap1"));
+        assertNull(CACHE_DISK_UTILS1.getDrawable("drawable1"));
         assertNull(CACHE_DISK_UTILS1.getParcelable("parcelable1", ParcelableTest.CREATOR));
         assertNull(CACHE_DISK_UTILS1.getSerializable("serializable1"));
         assertEquals(0, CACHE_DISK_UTILS1.getCacheSize());
@@ -214,8 +247,8 @@ public void clear() {
         assertNotNull(CACHE_DISK_UTILS2.getString("string2"));
         assertNotNull(CACHE_DISK_UTILS2.getJSONObject("jsonObject2"));
         assertNotNull(CACHE_DISK_UTILS2.getJSONArray("jsonArray2"));
-        assertNotNull(CACHE_DISK_UTILS2.getString("bitmap2"));
-        assertNotNull(CACHE_DISK_UTILS2.getString("drawable2"));
+        assertNotNull(CACHE_DISK_UTILS2.getBitmap("bitmap2"));
+        assertNotNull(CACHE_DISK_UTILS2.getDrawable("drawable2"));
         assertNotNull(CACHE_DISK_UTILS2.getParcelable("parcelable2", ParcelableTest.CREATOR));
         assertNotNull(CACHE_DISK_UTILS2.getSerializable("serializable2"));
         CACHE_DISK_UTILS2.clear();
@@ -223,8 +256,8 @@ public void clear() {
         assertNull(CACHE_DISK_UTILS2.getString("string2"));
         assertNull(CACHE_DISK_UTILS2.getJSONObject("jsonObject2"));
         assertNull(CACHE_DISK_UTILS2.getJSONArray("jsonArray2"));
-        assertNull(CACHE_DISK_UTILS2.getString("bitmap2"));
-        assertNull(CACHE_DISK_UTILS2.getString("drawable2"));
+        assertNull(CACHE_DISK_UTILS2.getBitmap("bitmap2"));
+        assertNull(CACHE_DISK_UTILS2.getDrawable("drawable2"));
         assertNull(CACHE_DISK_UTILS2.getParcelable("parcelable2", ParcelableTest.CREATOR));
         assertNull(CACHE_DISK_UTILS2.getSerializable("serializable2"));
         assertEquals(0, CACHE_DISK_UTILS2.getCacheSize());
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleStaticUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleStaticUtilsTest.java
new file mode 100644
index 0000000000..85ac9bd05a
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleStaticUtilsTest.java
@@ -0,0 +1,298 @@
+package com.blankj.utilcode.util;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.Serializable;
+
+import static com.blankj.utilcode.util.TestConfig.FILE_SEP;
+import static com.blankj.utilcode.util.TestConfig.PATH_CACHE;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/06/13
+ *     desc  : test CacheDoubleStaticUtils
+ * </pre>
+ */
+public class CacheDoubleStaticUtilsTest extends BaseTest {
+
+    private static final String           CACHE_PATH         = PATH_CACHE + "double" + FILE_SEP;
+    private static final File             CACHE_FILE         = new File(CACHE_PATH);
+    private static final byte[]           BYTES              = "CacheDoubleUtils".getBytes();
+    private static final String           STRING             = "CacheDoubleUtils";
+    private static final JSONObject       JSON_OBJECT        = new JSONObject();
+    private static final JSONArray        JSON_ARRAY         = new JSONArray();
+    private static final ParcelableTest   PARCELABLE_TEST    = new ParcelableTest("Blankj", "CacheDoubleUtils");
+    private static final SerializableTest SERIALIZABLE_TEST  = new SerializableTest("Blankj", "CacheDoubleUtils");
+    private static final Bitmap           BITMAP             = Bitmap.createBitmap(100, 100, Bitmap.Config.RGB_565);
+    private static final Drawable         DRAWABLE           = new BitmapDrawable(Utils.getApp().getResources(), BITMAP);
+    private static final CacheMemoryUtils CACHE_MEMORY_UTILS = CacheMemoryUtils.getInstance();
+    private static final CacheDiskUtils   CACHE_DISK_UTILS   = CacheDiskUtils.getInstance(CACHE_FILE);
+    private static final CacheDoubleUtils CACHE_DOUBLE_UTILS = CacheDoubleUtils.getInstance(CACHE_MEMORY_UTILS, CACHE_DISK_UTILS);
+
+    static {
+        try {
+            JSON_OBJECT.put("class", "CacheDoubleUtils");
+            JSON_OBJECT.put("author", "Blankj");
+            JSON_ARRAY.put(0, JSON_OBJECT);
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Before
+    public void setUp() {
+        CacheDoubleStaticUtils.setDefaultCacheDoubleUtils(CACHE_DOUBLE_UTILS);
+        CacheDoubleStaticUtils.put("bytes", BYTES);
+        CacheDoubleStaticUtils.put("string", STRING);
+        CacheDoubleStaticUtils.put("jsonObject", JSON_OBJECT);
+        CacheDoubleStaticUtils.put("jsonArray", JSON_ARRAY);
+        CacheDoubleStaticUtils.put("bitmap", BITMAP);
+        CacheDoubleStaticUtils.put("drawable", DRAWABLE);
+        CacheDoubleStaticUtils.put("parcelable", PARCELABLE_TEST);
+        CacheDoubleStaticUtils.put("serializable", SERIALIZABLE_TEST);
+    }
+
+    @Test
+    public void getBytes() {
+        assertEquals(STRING, new String(CacheDoubleStaticUtils.getBytes("bytes")));
+        CACHE_MEMORY_UTILS.remove("bytes");
+        assertEquals(STRING, new String(CacheDoubleStaticUtils.getBytes("bytes")));
+        CACHE_DISK_UTILS.remove("bytes");
+        assertNull(CacheDoubleStaticUtils.getBytes("bytes"));
+    }
+
+    @Test
+    public void getString() {
+        assertEquals(STRING, CacheDoubleStaticUtils.getString("string"));
+        CACHE_MEMORY_UTILS.remove("string");
+        assertEquals(STRING, CacheDoubleStaticUtils.getString("string"));
+        CACHE_DISK_UTILS.remove("string");
+        assertNull(CacheDoubleStaticUtils.getString("string"));
+    }
+
+    @Test
+    public void getJSONObject() {
+        assertEquals(JSON_OBJECT.toString(), CacheDoubleStaticUtils.getJSONObject("jsonObject").toString());
+        CACHE_MEMORY_UTILS.remove("jsonObject");
+        assertEquals(JSON_OBJECT.toString(), CacheDoubleStaticUtils.getJSONObject("jsonObject").toString());
+        CACHE_DISK_UTILS.remove("jsonObject");
+        assertNull(CacheDoubleStaticUtils.getJSONObject("jsonObject"));
+    }
+
+    @Test
+    public void getJSONArray() {
+        assertEquals(JSON_ARRAY.toString(), CacheDoubleStaticUtils.getJSONArray("jsonArray").toString());
+        CACHE_MEMORY_UTILS.remove("jsonArray");
+        assertEquals(JSON_ARRAY.toString(), CacheDoubleStaticUtils.getJSONArray("jsonArray").toString());
+        CACHE_DISK_UTILS.remove("jsonArray");
+        assertNull(CacheDoubleStaticUtils.getJSONArray("jsonArray"));
+    }
+
+    @Test
+    public void getBitmap() {
+        assertEquals(BITMAP, CacheDoubleStaticUtils.getBitmap("bitmap"));
+        CACHE_MEMORY_UTILS.remove("bitmap");
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CacheDoubleStaticUtils.getBitmap("bitmap"), Bitmap.CompressFormat.PNG, 100)
+        );
+        CACHE_DISK_UTILS.remove("bitmap");
+        assertNull(CacheDoubleStaticUtils.getBitmap("bitmap"));
+    }
+
+    @Test
+    public void getDrawable() {
+        assertEquals(DRAWABLE, CacheDoubleStaticUtils.getDrawable("drawable"));
+        CACHE_MEMORY_UTILS.remove("drawable");
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CacheDoubleStaticUtils.getDrawable("drawable"), Bitmap.CompressFormat.PNG, 100)
+        );
+        CACHE_DISK_UTILS.remove("drawable");
+        assertNull(CacheDoubleStaticUtils.getDrawable("drawable"));
+    }
+
+    @Test
+    public void getParcel() {
+        assertEquals(PARCELABLE_TEST, CacheDoubleStaticUtils.getParcelable("parcelable", ParcelableTest.CREATOR));
+        CACHE_MEMORY_UTILS.remove("parcelable");
+        assertEquals(PARCELABLE_TEST, CacheDoubleStaticUtils.getParcelable("parcelable", ParcelableTest.CREATOR));
+        CACHE_DISK_UTILS.remove("parcelable");
+        assertNull(CacheDoubleStaticUtils.getParcelable("parcelable", PARCELABLE_TEST.CREATOR));
+    }
+
+    @Test
+    public void getSerializable() {
+        assertEquals(SERIALIZABLE_TEST, CacheDoubleStaticUtils.getSerializable("serializable"));
+        CACHE_MEMORY_UTILS.remove("serializable");
+        assertEquals(SERIALIZABLE_TEST, CacheDoubleStaticUtils.getSerializable("serializable"));
+        CACHE_DISK_UTILS.remove("serializable");
+        assertNull(CacheDoubleStaticUtils.getSerializable("serializable"));
+    }
+
+    @Test
+    public void getCacheDiskSize() {
+        assertEquals(FileUtils.getLength(CACHE_FILE), CacheDoubleStaticUtils.getCacheDiskSize());
+    }
+
+    @Test
+    public void getCacheDiskCount() {
+        assertEquals(8, CacheDoubleStaticUtils.getCacheDiskCount());
+    }
+
+    @Test
+    public void getCacheMemoryCount() {
+        assertEquals(8, CacheDoubleStaticUtils.getCacheMemoryCount());
+    }
+
+    @Test
+    public void remove() {
+        assertNotNull(CacheDoubleStaticUtils.getString("string"));
+        CacheDoubleStaticUtils.remove("string");
+        assertNull(CacheDoubleStaticUtils.getString("string"));
+    }
+
+    @Test
+    public void clear() {
+        assertNotNull(CacheDoubleStaticUtils.getBytes("bytes"));
+        assertNotNull(CacheDoubleStaticUtils.getString("string"));
+        assertNotNull(CacheDoubleStaticUtils.getJSONObject("jsonObject"));
+        assertNotNull(CacheDoubleStaticUtils.getJSONArray("jsonArray"));
+        assertNotNull(CacheDoubleStaticUtils.getBitmap("bitmap"));
+        assertNotNull(CacheDoubleStaticUtils.getDrawable("drawable"));
+        assertNotNull(CacheDoubleStaticUtils.getParcelable("parcelable", ParcelableTest.CREATOR));
+        assertNotNull(CacheDoubleStaticUtils.getSerializable("serializable"));
+        CacheDoubleStaticUtils.clear();
+        assertNull(CacheDoubleStaticUtils.getBytes("bytes"));
+        assertNull(CacheDoubleStaticUtils.getString("string"));
+        assertNull(CacheDoubleStaticUtils.getJSONObject("jsonObject"));
+        assertNull(CacheDoubleStaticUtils.getJSONArray("jsonArray"));
+        assertNull(CacheDoubleStaticUtils.getBitmap("bitmap"));
+        assertNull(CacheDoubleStaticUtils.getDrawable("drawable"));
+        assertNull(CacheDoubleStaticUtils.getParcelable("parcelable", ParcelableTest.CREATOR));
+        assertNull(CacheDoubleStaticUtils.getSerializable("serializable"));
+        assertEquals(0, CacheDoubleStaticUtils.getCacheDiskSize());
+        assertEquals(0, CacheDoubleStaticUtils.getCacheDiskCount());
+        assertEquals(0, CacheDoubleStaticUtils.getCacheMemoryCount());
+    }
+
+    @After
+    public void tearDown() {
+        CacheDoubleStaticUtils.clear();
+    }
+
+    static class ParcelableTest implements Parcelable {
+        String author;
+        String className;
+
+        public String getAuthor() {
+            return author;
+        }
+
+        public void setAuthor(String author) {
+            this.author = author;
+        }
+
+        public String getClassName() {
+            return className;
+        }
+
+        public void setClassName(String className) {
+            this.className = className;
+        }
+
+        ParcelableTest(String author, String className) {
+            this.author = author;
+            this.className = className;
+        }
+
+        ParcelableTest(Parcel in) {
+            author = in.readString();
+            className = in.readString();
+        }
+
+        @Override
+        public void writeToParcel(Parcel dest, int flags) {
+            dest.writeString(author);
+            dest.writeString(className);
+        }
+
+        @Override
+        public int describeContents() {
+            return 0;
+        }
+
+        public static final Creator<ParcelableTest> CREATOR = new Creator<ParcelableTest>() {
+            @Override
+            public ParcelableTest createFromParcel(Parcel in) {
+                return new ParcelableTest(in);
+            }
+
+            @Override
+            public ParcelableTest[] newArray(int size) {
+                return new ParcelableTest[size];
+            }
+        };
+
+        @Override
+        public boolean equals(Object obj) {
+            return obj instanceof ParcelableTest
+                    && ((ParcelableTest) obj).author.equals(author)
+                    && ((ParcelableTest) obj).className.equals(className);
+        }
+    }
+
+    static class SerializableTest implements Serializable {
+
+        private static final long serialVersionUID = -5806706668736895024L;
+
+        String author;
+        String className;
+
+        SerializableTest(String author, String className) {
+            this.author = author;
+            this.className = className;
+        }
+
+        public String getAuthor() {
+            return author;
+        }
+
+        public void setAuthor(String author) {
+            this.author = author;
+        }
+
+        public String getClassName() {
+            return className;
+        }
+
+        public void setClassName(String className) {
+            this.className = className;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            return obj instanceof SerializableTest
+                    && ((SerializableTest) obj).author.equals(author)
+                    && ((SerializableTest) obj).className.equals(className);
+        }
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
similarity index 87%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
index d924bf42b2..4fff847af0 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
@@ -7,6 +7,7 @@
 import android.os.Parcelable;
 
 import org.json.JSONArray;
+import org.json.JSONException;
 import org.json.JSONObject;
 import org.junit.After;
 import org.junit.Before;
@@ -17,6 +18,7 @@
 
 import static com.blankj.utilcode.util.TestConfig.FILE_SEP;
 import static com.blankj.utilcode.util.TestConfig.PATH_CACHE;
+import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
@@ -26,7 +28,7 @@
  *     author: Blankj
  *     blog  : http://blankj.com
  *     time  : 2018/06/13
- *     desc  :
+ *     desc  : test CacheDoubleUtils
  * </pre>
  */
 public class CacheDoubleUtilsTest extends BaseTest {
@@ -45,12 +47,18 @@ public class CacheDoubleUtilsTest extends BaseTest {
     private static final CacheDiskUtils   CACHE_DISK_UTILS   = CacheDiskUtils.getInstance(CACHE_FILE);
     private static final CacheDoubleUtils CACHE_DOUBLE_UTILS = CacheDoubleUtils.getInstance(CACHE_MEMORY_UTILS, CACHE_DISK_UTILS);
 
-    @Before
-    public void setUp() throws Exception {
-        JSON_OBJECT.put("class", "CacheDoubleUtils");
-        JSON_OBJECT.put("author", "Blankj");
-        JSON_ARRAY.put(0, JSON_OBJECT);
+    static {
+        try {
+            JSON_OBJECT.put("class", "CacheDiskUtils");
+            JSON_OBJECT.put("author", "Blankj");
+            JSON_ARRAY.put(0, JSON_OBJECT);
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+    }
 
+    @Before
+    public void setUp() {
         CACHE_DOUBLE_UTILS.put("bytes", BYTES);
         CACHE_DOUBLE_UTILS.put("string", STRING);
         CACHE_DOUBLE_UTILS.put("jsonObject", JSON_OBJECT);
@@ -85,7 +93,7 @@ public void getJSONObject() {
         CACHE_MEMORY_UTILS.remove("jsonObject");
         assertEquals(JSON_OBJECT.toString(), CACHE_DOUBLE_UTILS.getJSONObject("jsonObject").toString());
         CACHE_DISK_UTILS.remove("jsonObject");
-        assertNull(CACHE_DOUBLE_UTILS.getString("jsonObject"));
+        assertNull(CACHE_DOUBLE_UTILS.getJSONObject("jsonObject"));
     }
 
     @Test
@@ -94,7 +102,7 @@ public void getJSONArray() {
         CACHE_MEMORY_UTILS.remove("jsonArray");
         assertEquals(JSON_ARRAY.toString(), CACHE_DOUBLE_UTILS.getJSONArray("jsonArray").toString());
         CACHE_DISK_UTILS.remove("jsonArray");
-        assertNull(CACHE_DOUBLE_UTILS.getString("jsonArray"));
+        assertNull(CACHE_DOUBLE_UTILS.getJSONArray("jsonArray"));
     }
 
     @Test
@@ -102,9 +110,12 @@ public void getBitmap() {
         String bitmapString = "Bitmap (100 x 100) compressed as PNG with quality 100";
         assertEquals(BITMAP, CACHE_DOUBLE_UTILS.getBitmap("bitmap"));
         CACHE_MEMORY_UTILS.remove("bitmap");
-        assertEquals(bitmapString, CACHE_DOUBLE_UTILS.getString("bitmap"));
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.bitmap2Bytes(CACHE_DOUBLE_UTILS.getBitmap("bitmap"), Bitmap.CompressFormat.PNG, 100)
+        );
         CACHE_DISK_UTILS.remove("bitmap");
-        assertNull(CACHE_DOUBLE_UTILS.getString("bitmap"));
+        assertNull(CACHE_DOUBLE_UTILS.getBitmap("bitmap"));
     }
 
     @Test
@@ -112,9 +123,12 @@ public void getDrawable() {
         String bitmapString = "Bitmap (100 x 100) compressed as PNG with quality 100";
         assertEquals(DRAWABLE, CACHE_DOUBLE_UTILS.getDrawable("drawable"));
         CACHE_MEMORY_UTILS.remove("drawable");
-        assertEquals(bitmapString, CACHE_DOUBLE_UTILS.getString("drawable"));
+        assertArrayEquals(
+                ImageUtils.bitmap2Bytes(BITMAP, Bitmap.CompressFormat.PNG, 100),
+                ImageUtils.drawable2Bytes(CACHE_DOUBLE_UTILS.getDrawable("drawable"), Bitmap.CompressFormat.PNG, 100)
+        );
         CACHE_DISK_UTILS.remove("drawable");
-        assertNull(CACHE_DOUBLE_UTILS.getString("drawable"));
+        assertNull(CACHE_DOUBLE_UTILS.getDrawable("drawable"));
     }
 
     @Test
@@ -123,7 +137,7 @@ public void getParcel() {
         CACHE_MEMORY_UTILS.remove("parcelable");
         assertEquals(PARCELABLE_TEST, CACHE_DOUBLE_UTILS.getParcelable("parcelable", ParcelableTest.CREATOR));
         CACHE_DISK_UTILS.remove("parcelable");
-        assertNull(CACHE_DOUBLE_UTILS.getString("parcelable"));
+        assertNull(CACHE_DOUBLE_UTILS.getParcelable("parcelable", ParcelableTest.CREATOR));
     }
 
     @Test
@@ -132,12 +146,12 @@ public void getSerializable() {
         CACHE_MEMORY_UTILS.remove("serializable");
         assertEquals(SERIALIZABLE_TEST, CACHE_DOUBLE_UTILS.getSerializable("serializable"));
         CACHE_DISK_UTILS.remove("serializable");
-        assertNull(CACHE_DOUBLE_UTILS.getString("serializable"));
+        assertNull(CACHE_DOUBLE_UTILS.getSerializable("serializable"));
     }
 
     @Test
     public void getCacheDiskSize() {
-        assertEquals(FileUtils.getDirLength(CACHE_FILE), CACHE_DOUBLE_UTILS.getCacheDiskSize());
+        assertEquals(FileUtils.getLength(CACHE_FILE), CACHE_DOUBLE_UTILS.getCacheDiskSize());
     }
 
     @Test
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryStaticUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryStaticUtilsTest.java
new file mode 100644
index 0000000000..52bc2a7b1f
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryStaticUtilsTest.java
@@ -0,0 +1,89 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/04
+ *     desc  : test CacheMemoryStaticUtils
+ * </pre>
+ */
+public class CacheMemoryStaticUtilsTest extends BaseTest {
+
+    private CacheMemoryUtils mCacheMemoryUtils = CacheMemoryUtils.getInstance(3);
+
+    @Before
+    public void setUp() {
+        for (int i = 0; i < 10; i++) {
+            CacheMemoryStaticUtils.put(String.valueOf(i), i);
+        }
+        for (int i = 0; i < 10; i++) {
+            CacheMemoryStaticUtils.put(String.valueOf(i), i, mCacheMemoryUtils);
+        }
+    }
+
+    @Test
+    public void get() {
+        for (int i = 0; i < 10; i++) {
+            assertEquals(i, CacheMemoryStaticUtils.get(String.valueOf(i)));
+        }
+        for (int i = 0; i < 10; i++) {
+            if (i < 7) {
+                assertNull(CacheMemoryStaticUtils.get(String.valueOf(i), mCacheMemoryUtils));
+            } else {
+                assertEquals(i, CacheMemoryStaticUtils.get(String.valueOf(i), mCacheMemoryUtils));
+            }
+        }
+    }
+
+    @Test
+    public void getExpired() throws Exception {
+        CacheMemoryStaticUtils.put("10", 10, 2 * CacheMemoryUtils.SEC);
+
+        assertEquals(10, CacheMemoryStaticUtils.get("10"));
+        Thread.sleep(1500);
+        assertEquals(10, CacheMemoryStaticUtils.get("10"));
+        Thread.sleep(1500);
+        assertNull(CacheMemoryStaticUtils.get("10"));
+    }
+
+    @Test
+    public void getDefault() {
+        assertNull(CacheMemoryStaticUtils.get("10"));
+        assertEquals("10", CacheMemoryStaticUtils.get("10", "10"));
+    }
+
+    @Test
+    public void getCacheCount() {
+        assertEquals(10, CacheMemoryStaticUtils.getCacheCount());
+        assertEquals(3, CacheMemoryStaticUtils.getCacheCount(mCacheMemoryUtils));
+    }
+
+    @Test
+    public void remove() {
+        assertEquals(0, CacheMemoryStaticUtils.remove("0"));
+        assertNull(CacheMemoryStaticUtils.get("0"));
+        assertNull(CacheMemoryStaticUtils.remove("0"));
+    }
+
+    @Test
+    public void clear() {
+        CacheMemoryStaticUtils.clear();
+        CacheMemoryStaticUtils.clear(mCacheMemoryUtils);
+
+        for (int i = 0; i < 10; i++) {
+            assertNull(CacheMemoryStaticUtils.get(String.valueOf(i)));
+        }
+        for (int i = 0; i < 10; i++) {
+            assertNull(CacheMemoryStaticUtils.get(String.valueOf(i), mCacheMemoryUtils));
+        }
+        assertEquals(0, CacheMemoryStaticUtils.getCacheCount());
+        assertEquals(0, CacheMemoryStaticUtils.getCacheCount(mCacheMemoryUtils));
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
similarity index 97%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
index a067216dc8..70f7883d79 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
@@ -14,7 +14,7 @@
  *     desc  : test CacheMemoryUtils
  * </pre>
  */
-public class CacheMemoryUtilsTest {
+public class CacheMemoryUtilsTest extends BaseTest {
 
     private CacheMemoryUtils mCacheMemoryUtils1 = CacheMemoryUtils.getInstance();
     private CacheMemoryUtils mCacheMemoryUtils2 = CacheMemoryUtils.getInstance(3);
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/CloneUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CloneUtilsTest.java
new file mode 100644
index 0000000000..a52966f793
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CloneUtilsTest.java
@@ -0,0 +1,67 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/04/08
+ *     desc  : test CloneUtils
+ * </pre>
+ */
+public class CloneUtilsTest extends BaseTest {
+
+    @Test
+    public void deepClone() {
+        Result<Person> result = new Result<>(new Person("Blankj"));
+        Result<Person> cloneResult = CloneUtils.deepClone(result, GsonUtils.getType(Result.class, Person.class));
+        System.out.println(result);
+        System.out.println(cloneResult);
+        Assert.assertNotEquals(result, cloneResult);
+    }
+
+    static class Result<T> {
+        int    code;
+        String message;
+        T      data;
+
+        Result(T data) {
+            this.code = 200;
+            this.message = "success";
+            this.data = data;
+        }
+
+        @Override
+        public String toString() {
+            return "{\"code\":" + primitive2String(code) +
+                    ",\"message\":" + primitive2String(message) +
+                    ",\"data\":" + primitive2String(data) + "}";
+        }
+    }
+
+    static class Person {
+
+        String name;
+        int    gender;
+        String address;
+
+        Person(String name) {
+            this.name = name;
+        }
+
+        @Override
+        public String toString() {
+            return "{\"name\":" + primitive2String(name) +
+                    ",\"gender\":" + primitive2String(gender) +
+                    ",\"address\":" + primitive2String(address) + "}";
+        }
+    }
+
+    private static String primitive2String(final Object obj) {
+        if (obj == null) return "null";
+        if (obj instanceof CharSequence) return "\"" + obj.toString() + "\"";
+        return obj.toString();
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/CollectionUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CollectionUtilsTest.java
new file mode 100644
index 0000000000..265e8531a5
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/CollectionUtilsTest.java
@@ -0,0 +1,504 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.Iterator;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/12
+ *     desc  : test CollectionUtils
+ * </pre>
+ */
+public class CollectionUtilsTest extends BaseTest {
+
+    @Test
+    public void union() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("00", "01", "02");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("00", "11", "12");
+
+        Collection unionNullNull = CollectionUtils.union(null, null);
+        Collection unionL0Null = CollectionUtils.union(l0, null);
+        Collection unionNullL1 = CollectionUtils.union(null, l1);
+        Collection unionL0L1 = CollectionUtils.union(l0, l1);
+
+        System.out.println(unionNullNull);
+        System.out.println(unionL0Null);
+        System.out.println(unionNullL1);
+        System.out.println(unionL0L1);
+
+        Assert.assertNotSame(l0, unionL0Null);
+        Assert.assertNotSame(l1, unionNullL1);
+    }
+
+    @Test
+    public void intersection() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("00", "01", "02");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("00", "11", "12");
+
+        Collection intersectionNullNull = CollectionUtils.intersection(null, null);
+        Collection intersectionL0Null = CollectionUtils.intersection(l0, null);
+        Collection intersectionNullL1 = CollectionUtils.intersection(null, l1);
+        Collection intersectionL0L1 = CollectionUtils.intersection(l0, l1);
+
+        System.out.println(intersectionNullNull);
+        System.out.println(intersectionL0Null);
+        System.out.println(intersectionNullL1);
+        System.out.println(intersectionL0L1);
+    }
+
+    @Test
+    public void disjunction() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("00", "01", "02");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("00", "11", "12");
+
+        Collection disjunctionNullNull = CollectionUtils.disjunction(null, null);
+        Collection disjunctionL0Null = CollectionUtils.disjunction(l0, null);
+        Collection disjunctionNullL1 = CollectionUtils.disjunction(null, l1);
+        Collection disjunctionL0L1 = CollectionUtils.disjunction(l0, l1);
+
+        System.out.println(disjunctionNullNull);
+        System.out.println(disjunctionL0Null);
+        System.out.println(disjunctionNullL1);
+        System.out.println(disjunctionL0L1);
+
+        Assert.assertNotSame(l0, disjunctionL0Null);
+        Assert.assertNotSame(l1, disjunctionNullL1);
+    }
+
+    @Test
+    public void subtract() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("00", "01", "02");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("00", "11", "12");
+
+        Collection subtractNullNull = CollectionUtils.subtract(null, null);
+        Collection subtractL0Null = CollectionUtils.subtract(l0, null);
+        Collection subtractNullL1 = CollectionUtils.subtract(null, l1);
+        Collection subtractL0L1 = CollectionUtils.subtract(l0, l1);
+
+        System.out.println(subtractNullNull);
+        System.out.println(subtractL0Null);
+        System.out.println(subtractNullL1);
+        System.out.println(subtractL0L1);
+
+        Assert.assertNotSame(l0, subtractL0Null);
+    }
+
+    @Test
+    public void containsAny() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("00", "01", "02");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("00", "11", "12");
+
+        Assert.assertFalse(CollectionUtils.containsAny(null, null));
+        Assert.assertFalse(CollectionUtils.containsAny(l0, null));
+        Assert.assertFalse(CollectionUtils.containsAny(null, l1));
+        Assert.assertTrue(CollectionUtils.containsAny(l0, l1));
+    }
+
+    @Test
+    public void getCardinalityMap() {
+        System.out.println(CollectionUtils.getCardinalityMap(null));
+
+        ArrayList<String> l0 = CollectionUtils.newArrayList("0", "0", "1", "1", "2");
+        System.out.println(CollectionUtils.getCardinalityMap(l0));
+    }
+
+    @Test
+    public void isSubCollection() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("0", "1", "2");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("0", "0", "1", "1", "2");
+
+        Assert.assertFalse(CollectionUtils.isSubCollection(null, null));
+        Assert.assertFalse(CollectionUtils.isSubCollection(l0, null));
+        Assert.assertFalse(CollectionUtils.isSubCollection(null, l0));
+        Assert.assertTrue(CollectionUtils.isSubCollection(l0, l1));
+        Assert.assertTrue(CollectionUtils.isSubCollection(l0, l0));
+        Assert.assertFalse(CollectionUtils.isSubCollection(l1, l0));
+    }
+
+    @Test
+    public void isProperSubCollection() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("0", "1", "2");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("0", "0", "1", "1", "2");
+
+        Assert.assertFalse(CollectionUtils.isProperSubCollection(null, null));
+        Assert.assertFalse(CollectionUtils.isProperSubCollection(l0, null));
+        Assert.assertFalse(CollectionUtils.isProperSubCollection(null, l0));
+        Assert.assertTrue(CollectionUtils.isProperSubCollection(l0, l1));
+        Assert.assertFalse(CollectionUtils.isProperSubCollection(l0, l0));
+        Assert.assertFalse(CollectionUtils.isProperSubCollection(l1, l0));
+    }
+
+    @Test
+    public void isEqualCollection() {
+        ArrayList<String> l0 = CollectionUtils.newArrayList("0", "1", "2");
+        ArrayList<String> l1 = CollectionUtils.newArrayList("0", "0", "1", "1", "2");
+
+        Assert.assertFalse(CollectionUtils.isEqualCollection(null, null));
+        Assert.assertFalse(CollectionUtils.isEqualCollection(l0, null));
+        Assert.assertFalse(CollectionUtils.isEqualCollection(null, l0));
+        Assert.assertTrue(CollectionUtils.isEqualCollection(l0, l0));
+        Assert.assertFalse(CollectionUtils.isEqualCollection(l0, l1));
+    }
+
+    @Test
+    public void cardinality() {
+        ArrayList<String> list = CollectionUtils.newArrayList("0", "1", "1", "2");
+        Assert.assertEquals(0, CollectionUtils.cardinality(null, null));
+        Assert.assertEquals(0, CollectionUtils.cardinality(null, list));
+        list.add(null);
+        Assert.assertEquals(1, CollectionUtils.cardinality(null, list));
+        Assert.assertEquals(2, CollectionUtils.cardinality("1", list));
+    }
+
+    @Test
+    public void find() {
+        ArrayList<String> list = CollectionUtils.newArrayList("0", "1", "1", "2");
+
+        Assert.assertNull(CollectionUtils.find(null, null));
+        Assert.assertNull(CollectionUtils.find(list, null));
+        Assert.assertNull(CollectionUtils.find(null, new CollectionUtils.Predicate<String>() {
+            @Override
+            public boolean evaluate(String item) {
+                return true;
+            }
+        }));
+        Assert.assertEquals("1", CollectionUtils.find(list, new CollectionUtils.Predicate<String>() {
+            @Override
+            public boolean evaluate(String item) {
+                return "1".equals(item);
+            }
+        }));
+    }
+
+    @Test
+    public void forAllDo() {
+        ArrayList<String> list = CollectionUtils.newArrayList("0", "1", "1", "2");
+
+        CollectionUtils.forAllDo(null, null);
+        CollectionUtils.forAllDo(list, null);
+        CollectionUtils.forAllDo(null, new CollectionUtils.Closure<Object>() {
+            @Override
+            public void execute(int index, Object item) {
+                System.out.println(index + ": " + index);
+            }
+        });
+
+        CollectionUtils.forAllDo(list, new CollectionUtils.Closure<String>() {
+            @Override
+            public void execute(int index, String item) {
+                System.out.println(index + ": " + index);
+            }
+        });
+    }
+
+    @Test
+    public void filter() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        CollectionUtils.filter(l0, null);
+        Assert.assertNull(l0);
+
+        CollectionUtils.filter(l0, new CollectionUtils.Predicate<Integer>() {
+            @Override
+            public boolean evaluate(Integer item) {
+                return item > 1;
+            }
+        });
+        Assert.assertNull(l0);
+
+        CollectionUtils.filter(l1, null);
+        Assert.assertEquals(l1, l1);
+
+        CollectionUtils.filter(l1, new CollectionUtils.Predicate<Integer>() {
+            @Override
+            public boolean evaluate(Integer item) {
+                return item > 1;
+            }
+        });
+        Assert.assertTrue(CollectionUtils.isEqualCollection(CollectionUtils.newArrayList(2, 3), l1));
+    }
+
+    @Test
+    public void select() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertEquals(0, CollectionUtils.select(null, null).size());
+        Assert.assertEquals(0, CollectionUtils.select(list, null).size());
+        Assert.assertEquals(0, CollectionUtils.select(null, new CollectionUtils.Predicate<Object>() {
+            @Override
+            public boolean evaluate(Object item) {
+                return true;
+            }
+        }).size());
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList(2, 3),
+                CollectionUtils.select(list, new CollectionUtils.Predicate<Integer>() {
+                    @Override
+                    public boolean evaluate(Integer item) {
+                        return item > 1;
+                    }
+                })));
+
+        Collection<Integer> list1 = CollectionUtils.select(list, new CollectionUtils.Predicate<Integer>() {
+            @Override
+            public boolean evaluate(Integer item) {
+                return true;
+            }
+        });
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(list, list1));
+        Assert.assertNotSame(list, list1);
+    }
+
+
+    @Test
+    public void selectRejected() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertEquals(0, CollectionUtils.selectRejected(null, null).size());
+        Assert.assertEquals(0, CollectionUtils.selectRejected(list, null).size());
+        Assert.assertEquals(0, CollectionUtils.selectRejected(null, new CollectionUtils.Predicate<Object>() {
+            @Override
+            public boolean evaluate(Object item) {
+                return true;
+            }
+        }).size());
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList(0, 1),
+                CollectionUtils.selectRejected(list, new CollectionUtils.Predicate<Integer>() {
+                    @Override
+                    public boolean evaluate(Integer item) {
+                        return item > 1;
+                    }
+                })));
+
+
+        Collection<Integer> list1 = CollectionUtils.selectRejected(list, new CollectionUtils.Predicate<Integer>() {
+            @Override
+            public boolean evaluate(Integer item) {
+                return false;
+            }
+        });
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(list, list1));
+        Assert.assertNotSame(list, list1);
+    }
+
+    @Test
+    public void transform() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        CollectionUtils.transform(l0, null);
+        Assert.assertNull(l0);
+
+        CollectionUtils.transform(l0, new CollectionUtils.Transformer<Integer, Object>() {
+            @Override
+            public Object transform(Integer input) {
+                return "int: " + input;
+            }
+        });
+        Assert.assertNull(l0);
+
+        CollectionUtils.transform(l1, null);
+        Assert.assertEquals(l1, l1);
+
+        CollectionUtils.transform(l1, new CollectionUtils.Transformer<Integer, String>() {
+            @Override
+            public String transform(Integer input) {
+                return String.valueOf(input);
+            }
+        });
+        Assert.assertTrue(CollectionUtils.isEqualCollection(CollectionUtils.newArrayList("0", "1", "2", "3"), l1));
+    }
+
+    @Test
+    public void collect() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertTrue(CollectionUtils.isEmpty(CollectionUtils.collect(null, null)));
+        Assert.assertTrue(CollectionUtils.isEmpty(CollectionUtils.collect(list, null)));
+        Assert.assertTrue(CollectionUtils.isEmpty(CollectionUtils.collect(null, new CollectionUtils.Transformer() {
+            @Override
+            public Object transform(Object input) {
+                return null;
+            }
+        })));
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList("0", "1", "2", "3"),
+                CollectionUtils.collect(list, new CollectionUtils.Transformer<Integer, String>() {
+                    @Override
+                    public String transform(Integer input) {
+                        return String.valueOf(input);
+                    }
+                })));
+    }
+
+    @Test
+    public void countMatches() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertEquals(0, CollectionUtils.countMatches(null, null));
+        Assert.assertEquals(0, CollectionUtils.countMatches(list, null));
+        Assert.assertEquals(0, CollectionUtils.countMatches(null, new CollectionUtils.Predicate<Object>() {
+            @Override
+            public boolean evaluate(Object item) {
+                return false;
+            }
+        }));
+        Assert.assertEquals(2, CollectionUtils.countMatches(list, new CollectionUtils.Predicate<Integer>() {
+            @Override
+            public boolean evaluate(Integer item) {
+                return item > 1;
+            }
+        }));
+    }
+
+    @Test
+    public void exists() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertFalse(CollectionUtils.exists(null, null));
+        Assert.assertFalse(CollectionUtils.exists(list, null));
+        Assert.assertFalse(CollectionUtils.exists(null, new CollectionUtils.Predicate<Object>() {
+            @Override
+            public boolean evaluate(Object item) {
+                return false;
+            }
+        }));
+        Assert.assertTrue(CollectionUtils.exists(list, new CollectionUtils.Predicate<Integer>() {
+            @Override
+            public boolean evaluate(Integer item) {
+                return item > 1;
+            }
+        }));
+    }
+
+    @Test
+    public void addIgnoreNull() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertFalse(CollectionUtils.addIgnoreNull(null, null));
+        Assert.assertFalse(CollectionUtils.addIgnoreNull(null, 1));
+
+        CollectionUtils.addIgnoreNull(list, null);
+        Assert.assertEquals(CollectionUtils.newArrayList(0, 1, 2, 3), list);
+
+        CollectionUtils.addIgnoreNull(list, 4);
+        Assert.assertEquals(CollectionUtils.newArrayList(0, 1, 2, 3, 4), list);
+    }
+
+    @Test
+    public void addAll() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+        CollectionUtils.addAll(l0, (Iterator<Integer>) null);
+        Assert.assertNull(l0);
+        CollectionUtils.addAll(l0, (Enumeration<Integer>) null);
+        Assert.assertNull(l0);
+        CollectionUtils.addAll(l0, (Integer[]) null);
+        Assert.assertNull(l0);
+
+        CollectionUtils.addAll(l1, (Iterator<Integer>) null);
+        Assert.assertTrue(CollectionUtils.isEqualCollection(CollectionUtils.newArrayList(0, 1, 2, 3), l1));
+        CollectionUtils.addAll(l1, (Enumeration<Integer>) null);
+        Assert.assertTrue(CollectionUtils.isEqualCollection(CollectionUtils.newArrayList(0, 1, 2, 3), l1));
+        CollectionUtils.addAll(l1, (Integer[]) null);
+        Assert.assertTrue(CollectionUtils.isEqualCollection(CollectionUtils.newArrayList(0, 1, 2, 3), l1));
+
+        CollectionUtils.addAll(l1, CollectionUtils.newArrayList(4, 5).iterator());
+        Assert.assertTrue(CollectionUtils.isEqualCollection(CollectionUtils.newArrayList(0, 1, 2, 3, 4, 5), l1));
+    }
+
+    @Test
+    public void get() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertNull(CollectionUtils.get(l0, 0));
+        Assert.assertEquals(0, CollectionUtils.get(l1, 0));
+    }
+
+    @Test
+    public void size() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertEquals(0, CollectionUtils.size(l0));
+        Assert.assertEquals(4, CollectionUtils.size(l1));
+    }
+
+    @Test
+    public void sizeIsEmpty() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertTrue(CollectionUtils.sizeIsEmpty(l0));
+        Assert.assertFalse(CollectionUtils.sizeIsEmpty(l1));
+    }
+
+    @Test
+    public void isEmpty() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertTrue(CollectionUtils.isEmpty(l0));
+        Assert.assertFalse(CollectionUtils.isEmpty(l1));
+    }
+
+    @Test
+    public void isNotEmpty() {
+        ArrayList<Integer> l0 = null;
+        ArrayList<Integer> l1 = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertFalse(CollectionUtils.isNotEmpty(l0));
+        Assert.assertTrue(CollectionUtils.isNotEmpty(l1));
+    }
+
+    @Test
+    public void retainAll() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertEquals(0, CollectionUtils.retainAll(null, null).size());
+        Assert.assertEquals(0, CollectionUtils.retainAll(list, null).size());
+        Assert.assertEquals(0, CollectionUtils.retainAll(null, list).size());
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList(0, 1, 2, 3),
+                CollectionUtils.retainAll(list, list)
+        ));
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList(0, 1),
+                CollectionUtils.retainAll(list, CollectionUtils.newArrayList(0, 1, 6))
+        ));
+    }
+
+    @Test
+    public void removeAll() {
+        ArrayList<Integer> list = CollectionUtils.newArrayList(0, 1, 2, 3);
+
+        Assert.assertEquals(0, CollectionUtils.removeAll(null, null).size());
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList(0, 1, 2, 3),
+                CollectionUtils.removeAll(list, null)
+        ));
+        Assert.assertEquals(0, CollectionUtils.removeAll(null, list).size());
+
+        Assert.assertTrue(CollectionUtils.isEqualCollection(
+                CollectionUtils.newArrayList(2, 3),
+                CollectionUtils.removeAll(list, CollectionUtils.newArrayList(0, 1, 6))
+        ));
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/ColorUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ColorUtilsTest.java
new file mode 100644
index 0000000000..54871f9833
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ColorUtilsTest.java
@@ -0,0 +1,59 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/01/15
+ *     desc  : test ColorUtils
+ * </pre>
+ */
+public class ColorUtilsTest extends BaseTest {
+
+    @Test
+    public void setAlphaComponent() {
+        assertEquals(0x80ffffff, ColorUtils.setAlphaComponent(0xffffffff, 0x80));
+        assertEquals(0x80ffffff, ColorUtils.setAlphaComponent(0xffffffff, 0.5f));
+    }
+
+    @Test
+    public void setRedComponent() {
+        assertEquals(0xff80ffff, ColorUtils.setRedComponent(0xffffffff, 0x80));
+        assertEquals(0xff80ffff, ColorUtils.setRedComponent(0xffffffff, 0.5f));
+    }
+
+    @Test
+    public void setGreenComponent() {
+        assertEquals(0xffff80ff, ColorUtils.setGreenComponent(0xffffffff, 0x80));
+        assertEquals(0xffff80ff, ColorUtils.setGreenComponent(0xffffffff, 0.5f));
+    }
+
+    @Test
+    public void setBlueComponent() {
+        assertEquals(0xffffff80, ColorUtils.setBlueComponent(0xffffffff, 0x80));
+        assertEquals(0xffffff80, ColorUtils.setBlueComponent(0xffffffff, 0.5f));
+    }
+
+    @Test
+    public void string2Int() {
+        assertEquals(0xffffffff, ColorUtils.string2Int("#ffffff"));
+        assertEquals(0xffffffff, ColorUtils.string2Int("#ffffffff"));
+        assertEquals(0xffffffff, ColorUtils.string2Int("white"));
+    }
+
+    @Test
+    public void int2RgbString() {
+        assertEquals("#000001", ColorUtils.int2RgbString(1));
+        assertEquals("#ffffff", ColorUtils.int2RgbString(0xffffff));
+    }
+
+    @Test
+    public void int2ArgbString() {
+        assertEquals("#ff000001", ColorUtils.int2ArgbString(1));
+        assertEquals("#ffffffff", ColorUtils.int2ArgbString(0xffffff));
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
similarity index 95%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
index 4f93e8ff54..9824ababbb 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
@@ -20,7 +20,7 @@
  *     desc  : test ConvertUtils
  * </pre>
  */
-public class ConvertUtilsTest {
+public class ConvertUtilsTest extends BaseTest {
 
     private byte[] mBytes    = new byte[]{0x00, 0x08, (byte) 0xdb, 0x33, 0x45, (byte) 0xab, 0x02, 0x23};
     private String hexString = "0008DB3345AB0223";
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
new file mode 100644
index 0000000000..0c6136b69e
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
@@ -0,0 +1,63 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/12
+ *     desc  : test EncodeUtils
+ * </pre>
+ */
+public class EncodeUtilsTest extends BaseTest {
+
+    @Test
+    public void urlEncode_urlDecode() {
+        String urlEncodeString = "%E5%93%88%E5%93%88%E5%93%88";
+        assertEquals(urlEncodeString, EncodeUtils.urlEncode("哈哈哈"));
+        assertEquals(urlEncodeString, EncodeUtils.urlEncode("哈哈哈", "UTF-8"));
+
+        assertEquals("哈哈哈", EncodeUtils.urlDecode(urlEncodeString));
+        assertEquals("哈哈哈", EncodeUtils.urlDecode(urlEncodeString, "UTF-8"));
+    }
+
+    @Test
+    public void base64Decode_base64Encode() {
+        assertArrayEquals("blankj".getBytes(), EncodeUtils.base64Decode(EncodeUtils.base64Encode("blankj")));
+        assertArrayEquals("blankj".getBytes(), EncodeUtils.base64Decode(EncodeUtils.base64Encode2String("blankj".getBytes())));
+        assertEquals(
+                "Ymxhbmtq",
+                EncodeUtils.base64Encode2String("blankj".getBytes())
+        );
+        assertArrayEquals("Ymxhbmtq".getBytes(), EncodeUtils.base64Encode("blankj".getBytes()));
+    }
+
+    @Test
+    public void htmlEncode_htmlDecode() {
+        String html = "<html>" +
+                "<head>" +
+                "<title>我的第一个 HTML 页面</title>" +
+                "</head>" +
+                "<body>" +
+                "<p>body 元素的内容会显示在浏览器中。</p>" +
+                "<p>title 元素的内容会显示在浏览器的标题栏中。</p>" +
+                "</body>" +
+                "</html>";
+        String encodeHtml = "&lt;html&gt;&lt;head&gt;&lt;title&gt;我的第一个 HTML 页面&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;p&gt;body 元素的内容会显示在浏览器中。&lt;/p&gt;&lt;p&gt;title 元素的内容会显示在浏览器的标题栏中。&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;";
+
+        assertEquals(encodeHtml, EncodeUtils.htmlEncode(html));
+
+        assertEquals(html, EncodeUtils.htmlDecode(encodeHtml).toString());
+    }
+
+    @Test
+    public void binEncode_binDecode() {
+        String test = "test";
+        String binary = EncodeUtils.binaryEncode(test);
+        assertEquals("test", EncodeUtils.binaryDecode(binary));
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
new file mode 100644
index 0000000000..91f5e0f213
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
@@ -0,0 +1,452 @@
+package com.blankj.utilcode.util;
+
+import android.util.Pair;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.io.File;
+import java.security.Key;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+import static com.blankj.utilcode.util.TestConfig.PATH_ENCRYPT;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/06
+ *     desc  : test EncryptUtils
+ * </pre>
+ */
+public class EncryptUtilsTest extends BaseTest {
+    @Test
+    public void encryptMD2() {
+        String blankjMD2 = "15435017570D8A73449E25C4622E17A4";
+        Assert.assertEquals(
+                blankjMD2,
+                EncryptUtils.encryptMD2ToString("blankj")
+        );
+        assertEquals(
+                blankjMD2,
+                EncryptUtils.encryptMD2ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjMD2),
+                EncryptUtils.encryptMD2("blankj".getBytes())
+        );
+    }
+
+    @Test
+    public void encryptMD5() {
+        String blankjMD5 = "AAC25CD336E01C8655F4EC7875445A60";
+        assertEquals(
+                blankjMD5,
+                EncryptUtils.encryptMD5ToString("blankj")
+        );
+        assertEquals(
+                blankjMD5,
+                EncryptUtils.encryptMD5ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjMD5),
+                EncryptUtils.encryptMD5("blankj".getBytes())
+        );
+    }
+
+    @Test
+    public void encryptMD5File() {
+        String fileMd5 = "7f138a09169b250e9dcb378140907378";
+        assertEquals(
+                fileMd5.toUpperCase(),
+                EncryptUtils.encryptMD5File2String(new File(PATH_ENCRYPT + "MD5.txt"))
+        );
+    }
+
+    @Test
+    public void encryptSHA1() {
+        String blankjSHA1 = "C606ACCB1FEB669E19D080ADDDDBB8E6CDA5F43C";
+        assertEquals(
+                blankjSHA1,
+                EncryptUtils.encryptSHA1ToString("blankj")
+        );
+        assertEquals(
+                blankjSHA1,
+                EncryptUtils.encryptSHA1ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjSHA1),
+                EncryptUtils.encryptSHA1("blankj".getBytes())
+        );
+    }
+
+    @Test
+    public void encryptSHA224() {
+        String blankjSHA224 = "F4C5C0E8CF56CAC4D06DB6B523F67621859A9D79BDA4B2AC03097D5F";
+        assertEquals(
+                blankjSHA224,
+                EncryptUtils.encryptSHA224ToString("blankj")
+        );
+        assertEquals(
+                blankjSHA224,
+                EncryptUtils.encryptSHA224ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjSHA224),
+                EncryptUtils.encryptSHA224("blankj".getBytes())
+        );
+    }
+
+    @Test
+    public void encryptSHA256() {
+        String blankjSHA256 = "8BD80AE90DFBA112786367BEBDDEE60A638EF5B82682EDF8F3D3CA8E6BFEF648";
+        assertEquals(
+                blankjSHA256,
+                EncryptUtils.encryptSHA256ToString("blankj")
+        );
+        assertEquals(
+                blankjSHA256,
+                EncryptUtils.encryptSHA256ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjSHA256),
+                EncryptUtils.encryptSHA256("blankj".getBytes()));
+
+    }
+
+    @Test
+    public void encryptSHA384() {
+        String blankjSHA384 = "BF831E5221FC108D6A72ACB888BA3EB0C030A5F01BA2F739856BE70681D86F992B85E0D461101C74BAEDA895BD422557";
+        assertEquals(
+                blankjSHA384,
+                EncryptUtils.encryptSHA384ToString("blankj")
+        );
+        assertEquals(
+                blankjSHA384,
+                EncryptUtils.encryptSHA384ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjSHA384),
+                EncryptUtils.encryptSHA384("blankj".getBytes())
+        );
+    }
+
+    @Test
+    public void encryptSHA512() {
+        String blankjSHA512 = "D59D31067F614ED3586F85A31FEFDB7F33096316DA26EBE0FF440B241C8560D96650F100D78C512560C976949EFA89CB5D5589DCF68C7FAADE98F03BCFEC2B45";
+        assertEquals(
+                blankjSHA512,
+                EncryptUtils.encryptSHA512ToString("blankj")
+        );
+        assertEquals(
+                blankjSHA512,
+                EncryptUtils.encryptSHA512ToString("blankj".getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjSHA512),
+                EncryptUtils.encryptSHA512("blankj".getBytes())
+        );
+    }
+
+    private String blankjHmacSHA512 =
+            "FC55AD54B95F55A8E32EA1BAD7748C157F80679F5561EC95A3EAD975316BA85363CB4AF6462D695F742F469EDC2D577272BE359A7F9E9C7018FDF4C921E1B3CF";
+    private String blankjHmackey    = "blankj";
+
+    @Test
+    public void encryptHmacMD5() {
+        String blankjHmacMD5 = "2BA3FDABEE222522044BEC0CE5D6B490";
+        assertEquals(
+                blankjHmacMD5,
+                EncryptUtils.encryptHmacMD5ToString("blankj", blankjHmackey)
+        );
+        assertEquals(
+                blankjHmacMD5,
+                EncryptUtils.encryptHmacMD5ToString("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjHmacMD5),
+                EncryptUtils.encryptHmacMD5("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+    }
+
+    @Test
+    public void encryptHmacSHA1() {
+        String blankjHmacSHA1 = "88E83EFD915496860C83739BE2CF4752B2AC105F";
+        assertEquals(
+                blankjHmacSHA1,
+                EncryptUtils.encryptHmacSHA1ToString("blankj", blankjHmackey)
+        );
+        assertEquals(
+                blankjHmacSHA1,
+                EncryptUtils.encryptHmacSHA1ToString("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjHmacSHA1),
+                EncryptUtils.encryptHmacSHA1("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+    }
+
+    @Test
+    public void encryptHmacSHA224() {
+        String blankjHmacSHA224 = "E392D83D1030323FB2E062E8165A3AD38366E53DF19EA3290961E153";
+        assertEquals(
+                blankjHmacSHA224,
+                EncryptUtils.encryptHmacSHA224ToString("blankj", blankjHmackey)
+        );
+        assertEquals(
+                blankjHmacSHA224,
+                EncryptUtils.encryptHmacSHA224ToString("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjHmacSHA224),
+                EncryptUtils.encryptHmacSHA224("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+    }
+
+    @Test
+    public void encryptHmacSHA256() {
+        String blankjHmacSHA256 = "A59675F13FC9A6E06D8DC90D4DC01DB9C991B0B95749D2471E588BF311DA2C67";
+        assertEquals(
+                blankjHmacSHA256,
+                EncryptUtils.encryptHmacSHA256ToString("blankj", blankjHmackey)
+        );
+        assertEquals(
+                blankjHmacSHA256,
+                EncryptUtils.encryptHmacSHA256ToString("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjHmacSHA256),
+                EncryptUtils.encryptHmacSHA256("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+    }
+
+    @Test
+    public void encryptHmacSHA384() {
+        String blankjHmacSHA384 = "9FC2F49C7EDE698EA59645B3BEFBBE67DCC7D6623E03D4D03CDA1324F7B6445BC428AB42F6A962CF79AFAD1302C3223D";
+        assertEquals(
+                blankjHmacSHA384,
+                EncryptUtils.encryptHmacSHA384ToString("blankj", blankjHmackey)
+        );
+        assertEquals(
+                blankjHmacSHA384,
+                EncryptUtils.encryptHmacSHA384ToString("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjHmacSHA384),
+                EncryptUtils.encryptHmacSHA384("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+    }
+
+    @Test
+    public void encryptHmacSHA512() {
+        assertEquals(
+                blankjHmacSHA512,
+                EncryptUtils.encryptHmacSHA512ToString("blankj", blankjHmackey)
+        );
+        assertEquals(
+                blankjHmacSHA512,
+                EncryptUtils.encryptHmacSHA512ToString("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+        assertArrayEquals(
+                UtilsBridge.hexString2Bytes(blankjHmacSHA512),
+                EncryptUtils.encryptHmacSHA512("blankj".getBytes(), blankjHmackey.getBytes())
+        );
+    }
+
+
+    private String dataDES      = "0008DB3345AB0223";
+    private String keyDES       = "6801020304050607";
+    private String resDES       = "1F7962581118F360";
+    private byte[] bytesDataDES = UtilsBridge.hexString2Bytes(dataDES);
+    private byte[] bytesKeyDES  = UtilsBridge.hexString2Bytes(keyDES);
+    private byte[] bytesResDES  = UtilsBridge.hexString2Bytes(resDES);
+
+    @Test
+    public void encryptDES() {
+        assertArrayEquals(
+                bytesResDES,
+                EncryptUtils.encryptDES(bytesDataDES, bytesKeyDES, "DES/ECB/NoPadding", null)
+        );
+        assertEquals(
+                resDES,
+                EncryptUtils.encryptDES2HexString(bytesDataDES, bytesKeyDES, "DES/ECB/NoPadding", null)
+        );
+        assertArrayEquals(
+                UtilsBridge.base64Encode(bytesResDES),
+                EncryptUtils.encryptDES2Base64(bytesDataDES, bytesKeyDES, "DES/ECB/NoPadding", null)
+        );
+    }
+
+    @Test
+    public void decryptDES() {
+        assertArrayEquals(
+                bytesDataDES,
+                EncryptUtils.decryptDES(bytesResDES, bytesKeyDES, "DES/ECB/NoPadding", null)
+        );
+        assertArrayEquals(
+                bytesDataDES,
+                EncryptUtils.decryptHexStringDES(resDES, bytesKeyDES, "DES/ECB/NoPadding", null)
+        );
+        assertArrayEquals(
+                bytesDataDES,
+                EncryptUtils.decryptBase64DES(UtilsBridge.base64Encode(bytesResDES), bytesKeyDES, "DES/ECB/NoPadding", null)
+        );
+    }
+
+    private String data3DES      = "1111111111111111";
+    private String key3DES       = "111111111111111111111111111111111111111111111111";
+    private String res3DES       = "F40379AB9E0EC533";
+    private byte[] bytesDataDES3 = UtilsBridge.hexString2Bytes(data3DES);
+    private byte[] bytesKeyDES3  = UtilsBridge.hexString2Bytes(key3DES);
+    private byte[] bytesResDES3  = UtilsBridge.hexString2Bytes(res3DES);
+
+    @Test
+    public void encrypt3DES() {
+        assertArrayEquals(
+                bytesResDES3,
+                EncryptUtils.encrypt3DES(bytesDataDES3, bytesKeyDES3, "DESede/ECB/NoPadding", null)
+        );
+        assertEquals(
+                res3DES,
+                EncryptUtils.encrypt3DES2HexString(bytesDataDES3, bytesKeyDES3, "DESede/ECB/NoPadding", null)
+        );
+        assertArrayEquals(
+                UtilsBridge.base64Encode(bytesResDES3),
+                EncryptUtils.encrypt3DES2Base64(bytesDataDES3, bytesKeyDES3, "DESede/ECB/NoPadding", null)
+        );
+    }
+
+    @Test
+    public void decrypt3DES() {
+        assertArrayEquals(
+                bytesDataDES3,
+                EncryptUtils.decrypt3DES(bytesResDES3, bytesKeyDES3, "DESede/ECB/NoPadding", null)
+        );
+        assertArrayEquals(
+                bytesDataDES3,
+                EncryptUtils.decryptHexString3DES(res3DES, bytesKeyDES3, "DESede/ECB/NoPadding", null)
+        );
+        assertArrayEquals(
+                bytesDataDES3,
+                EncryptUtils.decryptBase64_3DES(UtilsBridge.base64Encode(bytesResDES3), bytesKeyDES3, "DESede/ECB/NoPadding", null)
+        );
+    }
+
+    private String dataAES      = "111111111111111111111111111111111";
+    private String keyAES       = "11111111111111111111111111111111";
+    private String resAES       = "393FBBBC2C774BE50A106A50393E623AC3790781D015BB854359587256581F6D";
+    private byte[] bytesDataAES = UtilsBridge.hexString2Bytes(dataAES);
+    private byte[] bytesKeyAES  = UtilsBridge.hexString2Bytes(keyAES);
+    private byte[] bytesResAES  = UtilsBridge.hexString2Bytes(resAES);
+
+    @Test
+    public void encryptAES() {
+        assertArrayEquals(
+                bytesResAES,
+                EncryptUtils.encryptAES(bytesDataAES, bytesKeyAES, "AES/ECB/PKCS5Padding", null)
+        );
+        assertEquals(
+                resAES,
+                EncryptUtils.encryptAES2HexString(bytesDataAES, bytesKeyAES, "AES/ECB/PKCS5Padding", null)
+        );
+        assertArrayEquals(
+                UtilsBridge.base64Encode(bytesResAES),
+                EncryptUtils.encryptAES2Base64(bytesDataAES, bytesKeyAES, "AES/ECB/PKCS5Padding", null)
+        );
+    }
+
+    @Test
+    public void decryptAES() {
+        assertArrayEquals(
+                bytesDataAES,
+                EncryptUtils.decryptAES(bytesResAES, bytesKeyAES, "AES/ECB/PKCS5Padding", null)
+        );
+        assertArrayEquals(
+                bytesDataAES,
+                EncryptUtils.decryptHexStringAES(resAES, bytesKeyAES, "AES/ECB/PKCS5Padding", null)
+        );
+        assertArrayEquals(bytesDataAES,
+                EncryptUtils.decryptBase64AES(UtilsBridge.base64Encode(bytesResAES), bytesKeyAES, "AES/ECB/PKCS5Padding", null)
+        );
+    }
+
+    @Test
+    public void encryptDecryptRSA() throws Exception {
+        int keySize = 1024;
+        Pair<String, String> publicPrivateKey = genKeyPair(keySize);
+
+        String publicKey = publicPrivateKey.first;
+        String privateKey = publicPrivateKey.second;
+        String dataRSA = "BlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBl";
+        System.out.println("publicKeyBase64:" + publicKey);
+        System.out.println("privateKeyBase64:" + privateKey);
+
+        System.out.println(EncryptUtils.encryptRSA2HexString(
+                dataRSA.getBytes(),
+                UtilsBridge.base64Decode(publicKey.getBytes()),
+                keySize,
+                "RSA/None/PKCS1Padding"
+        ));
+
+        assertArrayEquals(EncryptUtils.decryptRSA(
+                EncryptUtils.encryptRSA(
+                        dataRSA.getBytes(),
+                        UtilsBridge.base64Decode(publicKey.getBytes()),
+                        keySize,
+                        "RSA/None/PKCS1Padding"
+                ),
+                UtilsBridge.base64Decode(privateKey.getBytes()),
+                keySize,
+                "RSA/None/PKCS1Padding"
+        ), dataRSA.getBytes());
+    }
+
+    private String dataRc4 = "111111111111111111111";
+    private String keyRc4  = "111111111111";
+
+    @Test
+    public void rc4() throws Exception {
+        System.out.println(new String(EncryptUtils.rc4(EncryptUtils.rc4(dataRc4.getBytes(), keyRc4.getBytes()), keyRc4.getBytes())));
+    }
+
+    private Pair<String, String> genKeyPair(int size) throws NoSuchAlgorithmException {
+
+        if (size == 1024) {
+            return Pair.create(
+                    "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCYHGvdORdwsK5i+s9rKaMPL1O5eDK2XwNHRUWaxmGB/cxLxeinJrrqdAN+mME7XtGN9bklnOR3MUBQLVnWIn/IU0pnIJY9DpPTVc7x+1zFb8UUq1N0BBo/NpUG5olxuQULuAAHZOg28pnP/Pcb5XVEvpNKL0HaWjN8pu/Dzf8gZwIDAQAB",
+                    "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"
+            );
+        } else if (size == 2048) {
+            return Pair.create(
+                    "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjLLeJZIO7dfQKb6tHE+TlhvD1m3UdTefKvl4uNQboDXy2ztgPcksjLDXxsT+znxMBh4RpXxfVPgnrcSLewGVhTb3uXh9sWo6tvvshNaMKBTebaZePhE7grq+LHH3NILscVssK24rDSvIquZ4nUbDipF/Iscge4LwnypcCuun/3RCn4HYzXW+0YFFZC8Vq4zabIxtzzkvgZlAlvuD6tT76Uuo5kD8b36yYNALI+ZStOj283wlL8PgyyitRGaqCH+MjWYqDb5C0DN31kcoSU7ARTGWgNNAoexAdNujkBvVRFyR2cH9FpjJDu18Oa8v9uSjlRftVWPj0OQXE7vRUsrrawIDAQAB",
+                    "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"
+            );
+        }
+
+        SecureRandom secureRandom = new SecureRandom();
+
+        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
+
+        keyPairGenerator.initialize(size, secureRandom);
+
+        KeyPair keyPair = keyPairGenerator.generateKeyPair();
+
+        Key publicKey = keyPair.getPublic();
+
+        Key privateKey = keyPair.getPrivate();
+
+        byte[] publicKeyBytes = publicKey.getEncoded();
+        byte[] privateKeyBytes = privateKey.getEncoded();
+
+        String publicKeyBase64 = EncodeUtils.base64Encode2String(publicKeyBytes);
+        String privateKeyBase64 = EncodeUtils.base64Encode2String(privateKeyBytes);
+
+        return Pair.create(publicKeyBase64, privateKeyBase64);
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java
new file mode 100644
index 0000000000..a149ce69e2
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java
@@ -0,0 +1,92 @@
+package com.blankj.utilcode.util;
+
+import org.junit.After;
+import org.junit.Test;
+
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+import static com.blankj.utilcode.util.TestConfig.PATH_TEMP;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/05/24
+ *     desc  : test FileIOUtils
+ * </pre>
+ */
+public class FileIOUtilsTest extends BaseTest {
+
+    @Test
+    public void writeFileFromIS() throws Exception {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < 100000; i++) {
+            sb.append(String.format("%5dFileIOUtilsTest\n", i));
+        }
+        InputStream is = ConvertUtils.string2InputStream(sb.toString(), "UTF-8");
+
+        FileIOUtils.writeFileFromIS(PATH_TEMP + "writeFileFromIS.txt", is, new FileIOUtils.OnProgressUpdateListener() {
+            @Override
+            public void onProgressUpdate(double progress) {
+                System.out.println(String.format("%.2f", progress));
+            }
+        });
+    }
+
+    @Test
+    public void writeFileFromBytesByStream() throws Exception {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < 100000; i++) {
+            sb.append(String.format("%5dFileIOUtilsTest\n", i));
+        }
+        byte[] bytes = sb.toString().getBytes(StandardCharsets.UTF_8);
+
+        FileIOUtils.writeFileFromBytesByStream(PATH_TEMP + "writeFileFromBytesByStream.txt", bytes, new FileIOUtils.OnProgressUpdateListener() {
+            @Override
+            public void onProgressUpdate(double progress) {
+                System.out.println(String.format("%.2f", progress));
+            }
+        });
+    }
+
+    @Test
+    public void writeFileFromString() {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < 10; i++) {
+            sb.append(i).append("FileIOUtilsTest\n");
+        }
+        FileIOUtils.writeFileFromString(PATH_TEMP + "writeFileFromString.txt", sb.toString());
+    }
+
+    @Test
+    public void readFile2List() {
+        writeFileFromString();
+        for (String s : FileIOUtils.readFile2List(PATH_TEMP + "writeFileFromString.txt")) {
+            System.out.println(s);
+        }
+    }
+
+    @Test
+    public void readFile2String() {
+        writeFileFromString();
+        System.out.println(FileIOUtils.readFile2String(PATH_TEMP + "writeFileFromString.txt"));
+    }
+
+    @Test
+    public void readFile2Bytes() throws Exception {
+        writeFileFromBytesByStream();
+        FileIOUtils.readFile2BytesByStream(PATH_TEMP + "writeFileFromIS.txt", new FileIOUtils.OnProgressUpdateListener() {
+            @Override
+            public void onProgressUpdate(double progress) {
+                System.out.println(String.format("%.2f", progress));
+            }
+        });
+    }
+
+    @After
+    public void tearDown() {
+        FileUtils.deleteAllInDir(PATH_TEMP);
+    }
+
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
new file mode 100644
index 0000000000..a6294eeccf
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
@@ -0,0 +1,212 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Test;
+
+import java.io.File;
+import java.io.FileFilter;
+
+import static com.blankj.utilcode.util.TestConfig.FILE_SEP;
+import static com.blankj.utilcode.util.TestConfig.PATH_FILE;
+import static com.blankj.utilcode.util.TestConfig.PATH_TEMP;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/19
+ *     desc  : test FileUtils
+ * </pre>
+ */
+public class FileUtilsTest extends BaseTest {
+
+    private FileFilter mFilter = new FileFilter() {
+        @Override
+        public boolean accept(File pathname) {
+            return pathname.getName().endsWith("8.txt");
+        }
+    };
+
+    private FileUtils.OnReplaceListener mListener = new FileUtils.OnReplaceListener() {
+        @Override
+        public boolean onReplace(File srcFile, File destFile) {
+            return true;
+        }
+    };
+
+
+    @Test
+    public void getFileByPath() {
+        assertNull(FileUtils.getFileByPath(" "));
+        assertNotNull(FileUtils.getFileByPath(PATH_FILE));
+    }
+
+    @Test
+    public void isFileExists() {
+        assertTrue(FileUtils.isFileExists(PATH_FILE + "UTF8.txt"));
+        assertFalse(FileUtils.isFileExists(PATH_FILE + "UTF8"));
+    }
+
+    @Test
+    public void rename() {
+        assertTrue(FileUtils.rename(PATH_FILE + "GBK.txt", "GBK1.txt"));
+        assertTrue(FileUtils.rename(PATH_FILE + "GBK1.txt", "GBK.txt"));
+    }
+
+    @Test
+    public void isDir() {
+        assertFalse(FileUtils.isDir(PATH_FILE + "UTF8.txt"));
+        assertTrue(FileUtils.isDir(PATH_FILE));
+    }
+
+    @Test
+    public void isFile() {
+        assertTrue(FileUtils.isFile(PATH_FILE + "UTF8.txt"));
+        assertFalse(FileUtils.isFile(PATH_FILE));
+    }
+
+    @Test
+    public void createOrExistsDir() {
+        assertTrue(FileUtils.createOrExistsDir(PATH_FILE + "new Dir"));
+        assertTrue(FileUtils.createOrExistsDir(PATH_FILE));
+        assertTrue(FileUtils.delete(PATH_FILE + "new Dir"));
+    }
+
+    @Test
+    public void createOrExistsFile() {
+        assertTrue(FileUtils.createOrExistsFile(PATH_FILE + "new File"));
+        assertFalse(FileUtils.createOrExistsFile(PATH_FILE));
+        assertTrue(FileUtils.delete(PATH_FILE + "new File"));
+    }
+
+    @Test
+    public void createFileByDeleteOldFile() {
+        assertTrue(FileUtils.createFileByDeleteOldFile(PATH_FILE + "new File"));
+        assertFalse(FileUtils.createFileByDeleteOldFile(PATH_FILE));
+        assertTrue(FileUtils.delete(PATH_FILE + "new File"));
+    }
+
+    @Test
+    public void copyDir() {
+        assertFalse(FileUtils.copy(PATH_FILE, PATH_FILE, mListener));
+        assertFalse(FileUtils.copy(PATH_FILE, PATH_FILE + "new Dir", mListener));
+        assertTrue(FileUtils.copy(PATH_FILE, PATH_TEMP, mListener));
+        assertTrue(FileUtils.delete(PATH_TEMP));
+    }
+
+    @Test
+    public void copyFile() {
+        assertFalse(FileUtils.copy(PATH_FILE + "GBK.txt", PATH_FILE + "GBK.txt", mListener));
+        assertTrue(FileUtils.copy(PATH_FILE + "GBK.txt", PATH_FILE + "new Dir" + FILE_SEP + "GBK.txt", mListener));
+        assertTrue(FileUtils.copy(PATH_FILE + "GBK.txt", PATH_TEMP + "GBK.txt", mListener));
+        assertTrue(FileUtils.delete(PATH_FILE + "new Dir"));
+        assertTrue(FileUtils.delete(PATH_TEMP));
+    }
+
+    @Test
+    public void moveDir() {
+        assertFalse(FileUtils.move(PATH_FILE, PATH_FILE, mListener));
+        assertFalse(FileUtils.move(PATH_FILE, PATH_FILE + "new Dir", mListener));
+        assertTrue(FileUtils.move(PATH_FILE, PATH_TEMP, mListener));
+        assertTrue(FileUtils.move(PATH_TEMP, PATH_FILE, mListener));
+    }
+
+    @Test
+    public void moveFile() {
+        assertFalse(FileUtils.move(PATH_FILE + "GBK.txt", PATH_FILE + "GBK.txt", mListener));
+        assertTrue(FileUtils.move(PATH_FILE + "GBK.txt", PATH_TEMP + "GBK.txt", mListener));
+        assertTrue(FileUtils.move(PATH_TEMP + "GBK.txt", PATH_FILE + "GBK.txt", mListener));
+        FileUtils.delete(PATH_TEMP);
+    }
+
+    @Test
+    public void listFilesInDir() {
+        System.out.println(FileUtils.listFilesInDir(PATH_FILE, false).toString());
+        System.out.println(FileUtils.listFilesInDir(PATH_FILE, true).toString());
+    }
+
+    @Test
+    public void listFilesInDirWithFilter() {
+        System.out.println(FileUtils.listFilesInDirWithFilter(PATH_FILE, mFilter, false).toString());
+        System.out.println(FileUtils.listFilesInDirWithFilter(PATH_FILE, mFilter, true).toString());
+    }
+
+    @Test
+    public void getFileLastModified() {
+        System.out.println(TimeUtils.millis2String(FileUtils.getFileLastModified(PATH_FILE)));
+    }
+
+    @Test
+    public void getFileCharsetSimple() {
+        assertEquals("GBK", FileUtils.getFileCharsetSimple(PATH_FILE + "GBK.txt"));
+        assertEquals("Unicode", FileUtils.getFileCharsetSimple(PATH_FILE + "Unicode.txt"));
+        assertEquals("UTF-8", FileUtils.getFileCharsetSimple(PATH_FILE + "UTF8.txt"));
+        assertEquals("UTF-16BE", FileUtils.getFileCharsetSimple(PATH_FILE + "UTF16BE.txt"));
+    }
+
+    @Test
+    public void isUtf8() {
+        assertTrue(FileUtils.isUtf8(PATH_FILE + "UTF8.txt"));
+        assertFalse(FileUtils.isUtf8(PATH_FILE + "UTF16BE.txt"));
+        assertFalse(FileUtils.isUtf8(PATH_FILE + "Unicode.txt"));
+    }
+
+    @Test
+    public void getFileLines() {
+        assertEquals(7, FileUtils.getFileLines(PATH_FILE + "UTF8.txt"));
+    }
+
+    @Test
+    public void getDirSize() {
+        System.out.println(FileUtils.getSize(PATH_FILE));
+    }
+
+    @Test
+    public void getFileSize() {
+        System.out.println(FileUtils.getSize(PATH_FILE + "UTF8.txt"));
+    }
+
+    @Test
+    public void getDirLength() {
+        System.out.println(FileUtils.getLength(PATH_FILE));
+    }
+
+    @Test
+    public void getFileLength() {
+        System.out.println(FileUtils.getFileLength(PATH_FILE + "UTF8.txt"));
+//        System.out.println(FileUtils.getFileLength("https://raw.githubusercontent.com/Blankj/AndroidUtilCode/85bc44d1c8adb31027870ea4cb7a931700c80cad/LICENSE"));
+    }
+
+    @Test
+    public void getFileMD5ToString() {
+        assertEquals("249D3E76851DCC56C945994DE9DAC406", FileUtils.getFileMD5ToString(PATH_FILE + "UTF8.txt"));
+    }
+
+    @Test
+    public void getDirName() {
+        assertEquals(PATH_FILE, FileUtils.getDirName(new File(PATH_FILE + "UTF8.txt")));
+        assertEquals(PATH_FILE, FileUtils.getDirName(PATH_FILE + "UTF8.txt"));
+    }
+
+    @Test
+    public void getFileName() {
+        assertEquals("UTF8.txt", FileUtils.getFileName(PATH_FILE + "UTF8.txt"));
+        assertEquals("UTF8.txt", FileUtils.getFileName(new File(PATH_FILE + "UTF8.txt")));
+    }
+
+    @Test
+    public void getFileNameNoExtension() {
+        assertEquals("UTF8", FileUtils.getFileNameNoExtension(PATH_FILE + "UTF8.txt"));
+        assertEquals("UTF8", FileUtils.getFileNameNoExtension(new File(PATH_FILE + "UTF8.txt")));
+    }
+
+    @Test
+    public void getFileExtension() {
+        assertEquals("txt", FileUtils.getFileExtension(new File(PATH_FILE + "UTF8.txt")));
+        assertEquals("txt", FileUtils.getFileExtension(PATH_FILE + "UTF8.txt"));
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/GsonUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/GsonUtilsTest.java
new file mode 100644
index 0000000000..62e47138f6
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/GsonUtilsTest.java
@@ -0,0 +1,98 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/26
+ *     desc  : test GsonUtils
+ * </pre>
+ */
+public class GsonUtilsTest extends BaseTest {
+
+    @Test
+    public void getGson() {
+        Assert.assertNotNull(GsonUtils.getGson());
+    }
+
+    @Test
+    public void toJson() {
+        Result<Person> result = new Result<>(new Person("Blankj"));
+        Assert.assertEquals(
+                "{\"code\":200,\"message\":\"success\",\"data\":{\"name\":\"Blankj\",\"gender\":0,\"address\":null}}",
+                GsonUtils.toJson(result)
+        );
+    }
+
+    @Test
+    public void fromJson() {
+        List<Person> people = new ArrayList<>();
+        people.add(new Person("Blankj"));
+        people.add(new Person("Ming"));
+        Result<List<Person>> result = new Result<>(people);
+
+        Assert.assertEquals(
+                GsonUtils.toJson(result),
+                GsonUtils.toJson(
+                        GsonUtils.fromJson(
+                                GsonUtils.toJson(result),
+                                GsonUtils.getType(Result.class, GsonUtils.getListType(Person.class))
+                        )
+                )
+        );
+    }
+
+    @Test
+    public void getType() {
+        Assert.assertEquals(
+                "java.util.List<java.lang.String>",
+                GsonUtils.getListType(String.class).toString()
+        );
+        Assert.assertEquals(
+                "java.util.Map<java.lang.String, java.lang.Integer>",
+                GsonUtils.getMapType(String.class, Integer.class).toString()
+        );
+        Assert.assertEquals(
+                "java.lang.String[]",
+                GsonUtils.getArrayType(String.class).toString()
+        );
+        Assert.assertEquals(
+                "com.blankj.utilcode.util.GsonUtilsTest$Result<java.lang.String>",
+                GsonUtils.getType(Result.class, String.class).toString()
+        );
+        Assert.assertEquals(
+                "java.util.Map<java.lang.String, java.util.List<java.lang.String>>",
+                GsonUtils.getMapType(String.class, GsonUtils.getListType(String.class)).toString()
+        );
+    }
+
+    static class Result<T> {
+        int    code;
+        String message;
+        T      data;
+
+        Result(T data) {
+            this.code = 200;
+            this.message = "success";
+            this.data = data;
+        }
+    }
+
+    static class Person {
+
+        String name;
+        int    gender;
+        String address;
+
+        Person(String name) {
+            this.name = name;
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/ImageUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ImageUtilsTest.java
new file mode 100644
index 0000000000..486df32d78
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ImageUtilsTest.java
@@ -0,0 +1,26 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/25
+ *     desc  : test ImageUtils
+ * </pre>
+ */
+public class ImageUtilsTest extends BaseTest {
+
+    @Test
+    public void getImageType() {
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_JPG, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.jpg"));
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_PNG, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.png"));
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_GIF, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.gif"));
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_TIFF, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.tif"));
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_BMP, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.bmp"));
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_WEBP, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.webp"));
+        Assert.assertEquals(ImageUtils.ImageType.TYPE_ICO, ImageUtils.getImageType(TestConfig.PATH_IMAGE + "ic_launcher.ico"));
+    }
+}
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/LogUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/LogUtilsTest.java
new file mode 100644
index 0000000000..8df5310702
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/LogUtilsTest.java
@@ -0,0 +1,206 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/09/26
+ *     desc  : test LogUtils
+ * </pre>
+ */
+public class LogUtilsTest extends BaseTest {
+
+    private static final String              JSON        = "\r\n{\"tools\": [{ \"name\":\"css format\" , \"site\":\"http://tools.w3cschool.cn/code/css\" },{ \"name\":\"JSON format\" , \"site\":\"http://tools.w3cschool.cn/code/JSON\" },{ \"name\":\"pwd check\" , \"site\":\"http://tools.w3cschool.cn/password/my_password_safe\" }]}";
+    private static final String              XML         = "<books><book><author>Jack Herrington</author><title>PHP Hacks</title><publisher>O'Reilly</publisher></book><book><author>Jack Herrington</author><title>Podcasting Hacks</title><publisher>O'Reilly</publisher></book></books>";
+    private static final int[]               ONE_D_ARRAY = new int[]{1, 2, 3};
+    private static final int[][]             TWO_D_ARRAY = new int[][]{{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
+    private static final ArrayList<String>   LIST        = new ArrayList<>();
+    private static final Map<String, Object> MAP         = new HashMap<>();
+
+    @Test
+    public void testV() {
+        LogUtils.v();
+        LogUtils.v("");
+        LogUtils.v((Object) null);
+        LogUtils.v("hello");
+        LogUtils.v("hello\nworld");
+        LogUtils.v("hello", "world");
+    }
+
+    @Test
+    public void testVTag() {
+        LogUtils.vTag("");
+        LogUtils.vTag("", "");
+        LogUtils.vTag("TAG", (Object) null);
+        LogUtils.vTag("TAG", "hello");
+        LogUtils.vTag("TAG", "hello\nworld");
+        LogUtils.vTag("TAG", "hello", "world");
+    }
+
+    @Test
+    public void testD() {
+        LogUtils.d();
+        LogUtils.d("");
+        LogUtils.d((Object) null);
+        LogUtils.d("hello");
+        LogUtils.d("hello\nworld");
+        LogUtils.d("hello", "world");
+    }
+
+    @Test
+    public void testDTag() {
+        LogUtils.dTag("");
+        LogUtils.dTag("", "");
+        LogUtils.dTag("TAG", (Object) null);
+        LogUtils.dTag("TAG", "hello");
+        LogUtils.dTag("TAG", "hello\nworld");
+        LogUtils.dTag("TAG", "hello", "world");
+    }
+
+    @Test
+    public void testI() {
+        LogUtils.i();
+        LogUtils.i("");
+        LogUtils.i((Object) null);
+        LogUtils.i("hello");
+        LogUtils.i("hello\nworld");
+        LogUtils.i("hello", "world");
+    }
+
+    @Test
+    public void testITag() {
+        LogUtils.iTag("");
+        LogUtils.iTag("", "");
+        LogUtils.iTag("TAG", (Object) null);
+        LogUtils.iTag("TAG", "hello");
+        LogUtils.iTag("TAG", "hello\nworld");
+        LogUtils.iTag("TAG", "hello", "world");
+    }
+
+    @Test
+    public void testW() {
+        LogUtils.w();
+        LogUtils.w("");
+        LogUtils.w((Object) null);
+        LogUtils.w("hello");
+        LogUtils.w("hello\nworld");
+        LogUtils.w("hello", "world");
+    }
+
+    @Test
+    public void testWTag() {
+        LogUtils.wTag("");
+        LogUtils.wTag("", "");
+        LogUtils.wTag("TAG", (Object) null);
+        LogUtils.wTag("TAG", "hello");
+        LogUtils.wTag("TAG", "hello\nworld");
+        LogUtils.wTag("TAG", "hello", "world");
+    }
+
+    @Test
+    public void testE() {
+        LogUtils.e();
+        LogUtils.e("");
+        LogUtils.e((Object) null);
+        LogUtils.e("hello");
+        LogUtils.e("hello\nworld");
+        LogUtils.e("hello", "world");
+    }
+
+    @Test
+    public void testETag() {
+        LogUtils.eTag("");
+        LogUtils.eTag("", "");
+        LogUtils.eTag("TAG", (Object) null);
+        LogUtils.eTag("TAG", "hello");
+        LogUtils.eTag("TAG", "hello\nworld");
+        LogUtils.eTag("TAG", "hello", "world");
+    }
+
+    @Test
+    public void testA() {
+        LogUtils.a();
+        LogUtils.a("");
+        LogUtils.a((Object) null);
+        LogUtils.a("hello");
+        LogUtils.a("hello\nworld");
+        LogUtils.a("hello", "world");
+    }
+
+    @Test
+    public void testATag() {
+        LogUtils.aTag("");
+        LogUtils.aTag("", "");
+        LogUtils.aTag("TAG", (Object) null);
+        LogUtils.aTag("TAG", "hello");
+        LogUtils.aTag("TAG", "hello\nworld");
+        LogUtils.aTag("TAG", "hello", "world");
+    }
+
+    @Test
+    public void testJson() {
+        LogUtils.json(JSON);
+        LogUtils.json(new Person("Blankj"));
+    }
+
+    @Test
+    public void testXml() {
+        LogUtils.xml(XML);
+    }
+
+    @Test
+    public void testObject() {
+        LIST.add("hello");
+        LIST.add("log");
+        LIST.add("utils");
+
+        MAP.put("name", "AndroidUtilCode");
+        MAP.put("class", "LogUtils");
+        LogUtils.d((Object) ONE_D_ARRAY);
+        LogUtils.d((Object) TWO_D_ARRAY);
+        LogUtils.d(LIST);
+        LogUtils.d(MAP);
+    }
+
+    static class Person {
+
+        String name;
+        int    gender;
+        String address;
+
+        public Person(String name) {
+            this.name = name;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == this) return true;
+            if (!(obj instanceof Person)) return false;
+            Person p = (Person) obj;
+            return equals(name, p.name) && p.gender == gender && equals(address, p.address);
+        }
+
+        private static boolean equals(final Object o1, final Object o2) {
+            return o1 == o2 || (o1 != null && o1.equals(o2));
+        }
+
+        @Override
+        public String toString() {
+            return "{\"name\":" + primitive2String(name) +
+                    ",\"gender\":" + primitive2String(gender) +
+                    ",\"address\":" + primitive2String(address) + "}";
+        }
+    }
+
+    private static String primitive2String(final Object obj) {
+        if (obj == null) return "null";
+        if (obj instanceof CharSequence) return "\"" + obj.toString() + "\"";
+        return obj.toString();
+    }
+}
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/MapUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/MapUtilsTest.java
new file mode 100644
index 0000000000..1d6930469f
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/MapUtilsTest.java
@@ -0,0 +1,132 @@
+package com.blankj.utilcode.util;
+
+import android.util.Pair;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Comparator;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/14
+ *     desc  : test MapUtils
+ * </pre>
+ */
+public class MapUtilsTest extends BaseTest {
+
+    @Test
+    public void newUnmodifiableMap() {
+        System.out.println(MapUtils.newUnmodifiableMap(
+                Pair.create(0, "0"),
+                Pair.create(1, "1"),
+                Pair.create(2, "2"),
+                Pair.create(3, "3")
+        ));
+    }
+
+    @Test
+    public void newHashMap() {
+        System.out.println(MapUtils.newHashMap(
+                Pair.create(0, "0"),
+                Pair.create(1, "1"),
+                Pair.create(2, "2"),
+                Pair.create(3, "3")
+        ));
+    }
+
+    @Test
+    public void newLinkedHashMap() {
+        System.out.println(MapUtils.newLinkedHashMap(
+                Pair.create(0, "0"),
+                Pair.create(1, "1"),
+                Pair.create(2, "2"),
+                Pair.create(3, "3")
+        ));
+    }
+
+    @Test
+    public void newTreeMap() {
+        System.out.println(MapUtils.newTreeMap(
+                new Comparator<Integer>() {
+                    @Override
+                    public int compare(Integer o1, Integer o2) {
+                        return o2 - o1;
+                    }
+                },
+                Pair.create(0, "0"),
+                Pair.create(1, "1"),
+                Pair.create(2, "2"),
+                Pair.create(3, "3")
+        ));
+    }
+
+    @Test
+    public void newHashTable() {
+        System.out.println(MapUtils.newHashTable(
+                Pair.create(0, "0"),
+                Pair.create(1, "1"),
+                Pair.create(2, "2"),
+                Pair.create(3, "3")
+        ));
+    }
+
+    @Test
+    public void isEmpty() {
+        Assert.assertTrue(MapUtils.isEmpty(null));
+        Assert.assertTrue(MapUtils.isEmpty(MapUtils.newHashMap()));
+        Assert.assertFalse(MapUtils.isEmpty(MapUtils.newHashMap(Pair.create(0, 0))));
+    }
+
+    @Test
+    public void isNotEmpty() {
+        Assert.assertFalse(MapUtils.isNotEmpty(null));
+        Assert.assertFalse(MapUtils.isNotEmpty(MapUtils.newHashMap()));
+        Assert.assertTrue(MapUtils.isNotEmpty(MapUtils.newHashMap(Pair.create(0, 0))));
+    }
+
+    @Test
+    public void size() {
+        Assert.assertEquals(0, MapUtils.size(null));
+        Assert.assertEquals(0, MapUtils.size(MapUtils.newHashMap()));
+        Assert.assertEquals(1, MapUtils.size(MapUtils.newHashMap(Pair.create(0, 0))));
+    }
+
+    @Test
+    public void forAllDo() {
+        MapUtils.forAllDo(
+                MapUtils.newHashMap(
+                        Pair.create(0, "0"),
+                        Pair.create(1, "1"),
+                        Pair.create(2, "2"),
+                        Pair.create(3, "3")
+                ), new MapUtils.Closure<Integer, String>() {
+                    @Override
+                    public void execute(Integer key, String value) {
+                        System.out.println(key + "=" + value);
+                    }
+                });
+    }
+
+    @Test
+    public void transform() {
+        Map<String, String> transform = MapUtils.transform(
+                MapUtils.newHashMap(
+                        Pair.create(0, "0"),
+                        Pair.create(1, "1"),
+                        Pair.create(2, "2"),
+                        Pair.create(3, "3")
+                ),
+                new MapUtils.Transformer<Integer, String, String, String>() {
+                    @Override
+                    public Pair<String, String> transform(Integer integer, String s) {
+                        return Pair.create("StringKey" + integer, s);
+                    }
+                }
+        );
+        System.out.println(transform);
+    }
+}
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java
new file mode 100644
index 0000000000..a2fa94f0c6
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java
@@ -0,0 +1,45 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/04/13
+ *     desc  : test NumberUtils
+ * </pre>
+ */
+public class NumberUtilsTest {
+
+    @Test
+    public void format() {
+        double val = Math.PI * 100000;// 314159.2653589793
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, 2));
+        Assert.assertEquals("314159.265", NumberUtils.format(val, 3));
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, 2, true));
+        Assert.assertEquals("314159.26", NumberUtils.format(val, 2, false));
+
+        Assert.assertEquals("00314159.27", NumberUtils.format(val, 8, 2, true));
+        Assert.assertEquals("0000314159.27", NumberUtils.format(val, 10, 2, true));
+
+        Assert.assertEquals("314,159.27", NumberUtils.format(val, true, 2));
+        Assert.assertEquals("314159.27", NumberUtils.format(val, false, 2));
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, false, 2, true));
+        Assert.assertEquals("314159.26", NumberUtils.format(val, false, 2, false));
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, false, 2, true));
+        Assert.assertEquals("314159.265", NumberUtils.format(val, false, 3, false));
+    }
+
+    @Test
+    public void float2Double() {
+        float val = 3.14f;
+        System.out.println((double) val);
+        System.out.println(NumberUtils.float2Double(val));
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
similarity index 90%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
index 3ec4f63ecc..ed12c24d8d 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
@@ -1,20 +1,18 @@
 package com.blankj.utilcode.util;
 
-import android.support.v4.util.LongSparseArray;
-import android.support.v4.util.SimpleArrayMap;
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
 import android.util.SparseIntArray;
 import android.util.SparseLongArray;
 
 import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.annotation.Config;
 
 import java.util.HashMap;
 import java.util.LinkedList;
 
+import androidx.collection.LongSparseArray;
+import androidx.collection.SimpleArrayMap;
+
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
@@ -26,9 +24,7 @@
  *     desc  : test ObjectUtils
  * </pre>
  */
-@RunWith(RobolectricTestRunner.class)
-@Config(manifest = Config.NONE, sdk = 23)
-public class ObjectUtilsTest {
+public class ObjectUtilsTest extends BaseTest {
 
     @Test
     public void isEmpty() {
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/PathUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/PathUtilsTest.java
new file mode 100644
index 0000000000..7d56434300
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/PathUtilsTest.java
@@ -0,0 +1,29 @@
+package com.blankj.utilcode.util;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/04/09
+ *     desc  :
+ * </pre>
+ */
+public class PathUtilsTest extends BaseTest {
+
+    @Test
+    public void join() {
+        assertEquals(PathUtils.join("", ""), "");
+        assertEquals(PathUtils.join("", "data"), "/data");
+
+        assertEquals(PathUtils.join("", "//data"), "/data");
+        assertEquals(PathUtils.join("", "data//"), "/data");
+        assertEquals(PathUtils.join("", "//data//"), "/data");
+
+        assertEquals(PathUtils.join("/sdcard", "data"), "/sdcard/data");
+        assertEquals(PathUtils.join("/sdcard/", "data"), "/sdcard/data");
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
similarity index 91%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
index 2ee4ecdc9c..0c9dfe9d16 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
@@ -1,5 +1,7 @@
 package com.blankj.utilcode.util;
 
+import com.blankj.utilcode.constant.RegexConstants;
+
 import org.junit.Test;
 
 import java.util.Arrays;
@@ -15,7 +17,7 @@
  *     desc  : test RegexUtils
  * </pre>
  */
-public class RegexUtilsTest {
+public class RegexUtilsTest extends BaseTest {
 
     @Test
     public void isMobileSimple() {
@@ -26,6 +28,7 @@ public void isMobileSimple() {
     public void isMobileExact() {
         assertFalse(RegexUtils.isMobileExact("11111111111"));
         assertTrue(RegexUtils.isMobileExact("13888880000"));
+        assertTrue(RegexUtils.isMobileExact("12088880000", CollectionUtils.newArrayList("120")));
     }
 
     @Test
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
similarity index 95%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
index 19a8870ed7..39d01bb230 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
@@ -14,7 +14,7 @@
  *     desc  : test StringUtils
  * </pre>
  */
-public class StringUtilsTest {
+public class StringUtilsTest extends BaseTest {
 
     @Test
     public void isEmpty() {
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/TestConfig.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/TestConfig.java
new file mode 100644
index 0000000000..4075a1473e
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/TestConfig.java
@@ -0,0 +1,38 @@
+package com.blankj.utilcode.util;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/09/10
+ *     desc  : config of test
+ * </pre>
+ */
+public class TestConfig {
+
+    static final String FILE_SEP = System.getProperty("file.separator");
+
+    static final String LINE_SEP = System.getProperty("line.separator");
+
+    static final String TEST_PATH;
+
+    static {
+        String projectPath = System.getProperty("user.dir");
+        if (!projectPath.contains("utilcode")) {
+            projectPath += FILE_SEP + "utilcode";
+        }
+        TEST_PATH = projectPath + FILE_SEP + "src" + FILE_SEP + "test" + FILE_SEP + "res" + FILE_SEP;
+    }
+
+    static final String PATH_TEMP = TEST_PATH + "temp" + FILE_SEP;
+
+    static final String PATH_CACHE = TEST_PATH + "cache" + FILE_SEP;
+
+    static final String PATH_ENCRYPT = TEST_PATH + "encrypt" + FILE_SEP;
+
+    static final String PATH_FILE = TEST_PATH + "file" + FILE_SEP;
+
+    static final String PATH_IMAGE = TEST_PATH + "image" + FILE_SEP;
+
+    static final String PATH_ZIP = TEST_PATH + "zip" + FILE_SEP;
+}
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
similarity index 87%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
index 101fa2e273..36fe62be1f 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
@@ -14,7 +14,7 @@
  *     desc  :
  * </pre>
  */
-public class ThreadUtilsTest {
+public class ThreadUtilsTest extends BaseTest {
 
     @Test
     public void executeByFixed() throws Exception {
@@ -24,6 +24,7 @@ public void run(final int index, CountDownLatch latch) {
                 final TestTask<String> task = new TestTask<String>(latch) {
                     @Override
                     public String doInBackground() throws Throwable {
+                        new ThreadGroup("name");
                         Thread.sleep(500 + index * 10);
                         if (index < 4) {
                             return Thread.currentThread() + " :" + index;
@@ -364,6 +365,70 @@ void onTestSuccess(String result) {
         });
     }
 
+    @Test
+    public void cancelPoolTask() throws InterruptedException {
+        int count = 300;
+        final CountDownLatch countDownLatch = new CountDownLatch(count);
+        for (int i = 0; i < count; i++) {
+            final int finalI = i;
+            ThreadUtils.executeByCached(new ThreadUtils.Task<Integer>() {
+                @Override
+                public Integer doInBackground() throws Throwable {
+                    Thread.sleep(10 * finalI);
+                    return finalI;
+                }
+
+                @Override
+                public void onSuccess(Integer result) {
+                    System.out.println(result);
+                    if (result == 10) {
+                        ThreadUtils.cancel(ThreadUtils.getCachedPool());
+                    }
+                    countDownLatch.countDown();
+                }
+
+                @Override
+                public void onCancel() {
+                    System.out.println("onCancel: " + finalI);
+                    countDownLatch.countDown();
+                }
+
+                @Override
+                public void onFail(Throwable t) {
+                    countDownLatch.countDown();
+                }
+            });
+        }
+        countDownLatch.await();
+    }
+
+    @Test
+    public void testTimeout() throws InterruptedException {
+        CountDownLatch latch = new CountDownLatch(1);
+        ThreadUtils.Task<Boolean> task = new ThreadUtils.SimpleTask<Boolean>() {
+            @Override
+            public Boolean doInBackground() throws Throwable {
+                System.out.println("doInBackground start");
+                Thread.sleep(2000);
+                System.out.println("doInBackground end");
+                return null;
+            }
+
+            @Override
+            public void onSuccess(Boolean result) {
+                System.out.println("onSuccess");
+            }
+        }.setTimeout(1000, new ThreadUtils.Task.OnTimeoutListener() {
+            @Override
+            public void onTimeout() {
+                System.out.println("onTimeout");
+            }
+        });
+        ThreadUtils.executeByCached(task);
+
+        latch.await(3, TimeUnit.SECONDS);
+    }
+
     abstract static class TestScheduledTask<T> extends ThreadUtils.Task<T> {
 
         private static final AtomicInteger ATOMIC_INTEGER = new AtomicInteger();
@@ -426,7 +491,7 @@ public void onFail(Throwable t) {
         }
     }
 
-    <T> void asyncTest(int threadCount, TestRunnable<T> runnable) throws Exception {
+    private <T> void asyncTest(int threadCount, TestRunnable<T> runnable) throws Exception {
         CountDownLatch latch = new CountDownLatch(threadCount);
         for (int i = 0; i < threadCount; i++) {
             runnable.run(i, latch);
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
similarity index 89%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
index 7ff3411c2f..349eaab933 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
@@ -1,274 +1,288 @@
-package com.blankj.utilcode.util;
-
-import com.blankj.utilcode.constant.TimeConstants;
-
-import org.junit.Test;
-
-import java.text.DateFormat;
-import java.text.SimpleDateFormat;
-import java.util.Calendar;
-import java.util.Date;
-import java.util.Locale;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/12
- *     desc  : test TimeUtils
- * </pre>
- */
-public class TimeUtilsTest {
-
-    private final DateFormat defaultFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-    private final DateFormat mFormat       = new SimpleDateFormat("yyyy MM dd HH:mm:ss", Locale.getDefault());
-
-    private final long   timeMillis               = 1493887049000L;// 2017-05-04 16:37:29
-    private final Date   timeDate                 = new Date(timeMillis);
-    private final String timeString               = defaultFormat.format(timeDate);
-    private final String timeStringFormat         = mFormat.format(timeDate);
-    private final long   tomorrowTimeMillis       = 1493973449000L;
-    private final Date   tomorrowTimeDate         = new Date(tomorrowTimeMillis);
-    private final String tomorrowTimeString       = defaultFormat.format(tomorrowTimeDate);
-    private final String tomorrowTimeStringFormat = mFormat.format(tomorrowTimeDate);
-    private final long   delta                    = 8;// 允许误差8ms
-
-    @Test
-    public void millis2String() {
-        assertEquals(timeString, TimeUtils.millis2String(timeMillis));
-        assertEquals(timeStringFormat, TimeUtils.millis2String(timeMillis, mFormat));
-    }
-
-    @Test
-    public void string2Millis() {
-        assertEquals(timeMillis, TimeUtils.string2Millis(timeString));
-        assertEquals(timeMillis, TimeUtils.string2Millis(timeStringFormat, mFormat));
-    }
-
-    @Test
-    public void string2Date() {
-        assertEquals(timeDate, TimeUtils.string2Date(timeString));
-        assertEquals(timeDate, TimeUtils.string2Date(timeStringFormat, mFormat));
-    }
-
-    @Test
-    public void date2String() {
-        assertEquals(timeString, TimeUtils.date2String(timeDate));
-        assertEquals(timeStringFormat, TimeUtils.date2String(timeDate, mFormat));
-    }
-
-    @Test
-    public void date2Millis() {
-        assertEquals(timeMillis, TimeUtils.date2Millis(timeDate));
-    }
-
-    @Test
-    public void millis2Date() {
-        assertEquals(timeDate, TimeUtils.millis2Date(timeMillis));
-    }
-
-    @Test
-    public void getTimeSpan() {
-        long testTimeMillis = timeMillis + 120 * TimeConstants.SEC;
-        String testTimeString = TimeUtils.millis2String(testTimeMillis);
-        String testTimeStringFormat = TimeUtils.millis2String(testTimeMillis, mFormat);
-        Date testTimeDate = TimeUtils.millis2Date(testTimeMillis);
-        assertEquals(-120, TimeUtils.getTimeSpan(timeString, testTimeString, TimeConstants.SEC));
-        assertEquals(2, TimeUtils.getTimeSpan(testTimeStringFormat, timeStringFormat, mFormat, TimeConstants.MIN));
-        assertEquals(-2, TimeUtils.getTimeSpan(timeDate, testTimeDate, TimeConstants.MIN));
-        assertEquals(120, TimeUtils.getTimeSpan(testTimeMillis, timeMillis, TimeConstants.SEC));
-    }
-
-    @Test
-    public void getFitTimeSpan() {
-        long testTimeMillis = timeMillis + 10 * TimeConstants.DAY + 10 * TimeConstants.MIN + 10 * TimeConstants.SEC;
-        String testTimeString = TimeUtils.millis2String(testTimeMillis);
-        String testTimeStringFormat = TimeUtils.millis2String(testTimeMillis, mFormat);
-        Date testTimeDate = TimeUtils.millis2Date(testTimeMillis);
-        assertEquals("-10天10分钟10秒", TimeUtils.getFitTimeSpan(timeString, testTimeString, 5));
-        assertEquals("10天10分钟10秒", TimeUtils.getFitTimeSpan(testTimeStringFormat, timeStringFormat, mFormat, 5));
-        assertEquals("-10天10分钟10秒", TimeUtils.getFitTimeSpan(timeDate, testTimeDate, 5));
-        assertEquals("10天10分钟10秒", TimeUtils.getFitTimeSpan(testTimeMillis, timeMillis, 5));
-    }
-
-    @Test
-    public void getNowMills() {
-        assertEquals(System.currentTimeMillis(), TimeUtils.getNowMills(), delta);
-    }
-
-    @Test
-    public void getNowString() {
-        assertEquals(System.currentTimeMillis(), TimeUtils.string2Millis(TimeUtils.getNowString()), delta);
-        assertEquals(System.currentTimeMillis(), TimeUtils.string2Millis(TimeUtils.getNowString(mFormat), mFormat), delta);
-    }
-
-    @Test
-    public void getNowDate() {
-        assertEquals(System.currentTimeMillis(), TimeUtils.date2Millis(TimeUtils.getNowDate()), delta);
-    }
-
-    @Test
-    public void getTimeSpanByNow() {
-        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowString(), TimeConstants.MSEC), delta);
-        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowString(mFormat), mFormat, TimeConstants.MSEC), delta);
-        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowDate(), TimeConstants.MSEC), delta);
-        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowMills(), TimeConstants.MSEC), delta);
-    }
-
-    @Test
-    public void getFitTimeSpanByNow() {
-        long spanMillis = 6 * TimeConstants.DAY + 6 * TimeConstants.HOUR + 6 * TimeConstants.MIN + 6 * TimeConstants.SEC;
-        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(TimeUtils.millis2String(System.currentTimeMillis() + spanMillis), 4));
-        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(TimeUtils.millis2String(System.currentTimeMillis() + spanMillis, mFormat), mFormat, 4));
-        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(TimeUtils.millis2Date(System.currentTimeMillis() + spanMillis), 4));
-        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(System.currentTimeMillis() + spanMillis, 4));
-    }
-
-    @Test
-    public void getFriendlyTimeSpanByNow() {
-        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowString()));
-        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowString(mFormat), mFormat));
-        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowDate()));
-        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowMills()));
-        assertEquals("1秒前", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowMills() - TimeConstants.SEC));
-        assertEquals("1分钟前", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowMills() - TimeConstants.MIN));
-    }
-
-    @Test
-    public void getMillis() {
-        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeMillis, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeString, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeStringFormat, mFormat, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeDate, 1, TimeConstants.DAY));
-    }
-
-    @Test
-    public void getString() {
-        assertEquals(tomorrowTimeString, TimeUtils.getString(timeMillis, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeStringFormat, TimeUtils.getString(timeMillis, mFormat, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeString, TimeUtils.getString(timeString, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeStringFormat, TimeUtils.getString(timeStringFormat, mFormat, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeString, TimeUtils.getString(timeDate, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeStringFormat, TimeUtils.getString(timeDate, mFormat, 1, TimeConstants.DAY));
-    }
-
-    @Test
-    public void getDate() {
-        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeMillis, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeString, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeStringFormat, mFormat, 1, TimeConstants.DAY));
-        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeDate, 1, TimeConstants.DAY));
-    }
-
-    @Test
-    public void getMillisByNow() {
-        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, TimeUtils.getMillisByNow(1, TimeConstants.DAY), delta);
-    }
-
-    @Test
-    public void getStringByNow() {
-        long tomorrowMillis = TimeUtils.string2Millis(TimeUtils.getStringByNow(1, TimeConstants.DAY));
-        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, tomorrowMillis, delta);
-        tomorrowMillis = TimeUtils.string2Millis(TimeUtils.getStringByNow(1, mFormat, TimeConstants.DAY), mFormat);
-        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, tomorrowMillis, delta);
-    }
-
-    @Test
-    public void getDateByNow() {
-        long tomorrowMillis = TimeUtils.date2Millis(TimeUtils.getDateByNow(1, TimeConstants.DAY));
-        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, TimeUtils.getMillisByNow(1, TimeConstants.DAY), delta);
-    }
-
-    @Test
-    public void isToday() {
-        long todayTimeMillis = System.currentTimeMillis();
-        String todayTimeString = TimeUtils.millis2String(todayTimeMillis);
-        String todayTimeStringFormat = TimeUtils.millis2String(todayTimeMillis, mFormat);
-        Date todayTimeDate = TimeUtils.millis2Date(todayTimeMillis);
-        long tomorrowTimeMillis = todayTimeMillis + TimeConstants.DAY;
-        String tomorrowTimeString = TimeUtils.millis2String(tomorrowTimeMillis);
-        Date tomorrowTimeDate = TimeUtils.millis2Date(tomorrowTimeMillis);
-        assertTrue(TimeUtils.isToday(todayTimeString));
-        assertTrue(TimeUtils.isToday(todayTimeStringFormat, mFormat));
-        assertTrue(TimeUtils.isToday(todayTimeDate));
-        assertTrue(TimeUtils.isToday(todayTimeMillis));
-        assertFalse(TimeUtils.isToday(tomorrowTimeString));
-        assertFalse(TimeUtils.isToday(tomorrowTimeStringFormat, mFormat));
-        assertFalse(TimeUtils.isToday(tomorrowTimeDate));
-        assertFalse(TimeUtils.isToday(tomorrowTimeMillis));
-    }
-
-    @Test
-    public void isLeapYear() {
-        assertFalse(TimeUtils.isLeapYear(timeString));
-        assertFalse(TimeUtils.isLeapYear(timeStringFormat, mFormat));
-        assertFalse(TimeUtils.isLeapYear(timeDate));
-        assertFalse(TimeUtils.isLeapYear(timeMillis));
-        assertTrue(TimeUtils.isLeapYear(2016));
-        assertFalse(TimeUtils.isLeapYear(2017));
-    }
-
-    @Test
-    public void getChineseWeek() {
-        assertEquals("星期四", TimeUtils.getChineseWeek(timeString));
-        assertEquals("星期四", TimeUtils.getChineseWeek(timeStringFormat, mFormat));
-        assertEquals("星期四", TimeUtils.getChineseWeek(timeDate));
-        assertEquals("星期四", TimeUtils.getChineseWeek(timeMillis));
-    }
-
-    @Test
-    public void getUSWeek() {
-        assertEquals("Thursday", TimeUtils.getUSWeek(timeString));
-        assertEquals("Thursday", TimeUtils.getUSWeek(timeStringFormat, mFormat));
-        assertEquals("Thursday", TimeUtils.getUSWeek(timeDate));
-        assertEquals("Thursday", TimeUtils.getUSWeek(timeMillis));
-    }
-
-    @Test
-    public void getWeekIndex() {
-        assertEquals(5, TimeUtils.getValueByCalendarField(timeString, Calendar.DAY_OF_WEEK));
-        assertEquals(5, TimeUtils.getValueByCalendarField(timeString, Calendar.DAY_OF_WEEK));
-        assertEquals(5, TimeUtils.getValueByCalendarField(timeStringFormat, mFormat, Calendar.DAY_OF_WEEK));
-        assertEquals(5, TimeUtils.getValueByCalendarField(timeDate, Calendar.DAY_OF_WEEK));
-        assertEquals(5, TimeUtils.getValueByCalendarField(timeMillis, Calendar.DAY_OF_WEEK));
-    }
-
-    @Test
-    public void getWeekOfMonth() {
-        assertEquals(1, TimeUtils.getValueByCalendarField(timeString, Calendar.WEEK_OF_MONTH));
-        assertEquals(1, TimeUtils.getValueByCalendarField(timeStringFormat, mFormat, Calendar.WEEK_OF_MONTH));
-        assertEquals(1, TimeUtils.getValueByCalendarField(timeDate, Calendar.WEEK_OF_MONTH));
-        assertEquals(1, TimeUtils.getValueByCalendarField(timeMillis, Calendar.WEEK_OF_MONTH));
-    }
-
-    @Test
-    public void getWeekOfYear() {
-        assertEquals(18, TimeUtils.getValueByCalendarField(timeString, Calendar.WEEK_OF_YEAR));
-        assertEquals(18, TimeUtils.getValueByCalendarField(timeStringFormat, mFormat, Calendar.WEEK_OF_YEAR));
-        assertEquals(18, TimeUtils.getValueByCalendarField(timeDate, Calendar.WEEK_OF_YEAR));
-        assertEquals(18, TimeUtils.getValueByCalendarField(timeMillis, Calendar.WEEK_OF_YEAR));
-    }
-
-    @Test
-    public void getChineseZodiac() {
-        assertEquals("鸡", TimeUtils.getChineseZodiac(timeString));
-        assertEquals("鸡", TimeUtils.getChineseZodiac(timeStringFormat, mFormat));
-        assertEquals("鸡", TimeUtils.getChineseZodiac(timeDate));
-        assertEquals("鸡", TimeUtils.getChineseZodiac(timeMillis));
-        assertEquals("鸡", TimeUtils.getChineseZodiac(2017));
-    }
-
-    @Test
-    public void getZodiac() {
-        assertEquals("金牛座", TimeUtils.getZodiac(timeString));
-        assertEquals("金牛座", TimeUtils.getZodiac(timeStringFormat, mFormat));
-        assertEquals("金牛座", TimeUtils.getZodiac(timeDate));
-        assertEquals("金牛座", TimeUtils.getZodiac(timeMillis));
-        assertEquals("狮子座", TimeUtils.getZodiac(8, 16));
-    }
+package com.blankj.utilcode.util;
+
+import com.blankj.utilcode.constant.TimeConstants;
+
+import org.junit.Test;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Locale;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/12
+ *     desc  : test TimeUtils
+ * </pre>
+ */
+public class TimeUtilsTest extends BaseTest {
+
+    private final DateFormat defaultFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+    private final DateFormat mFormat       = new SimpleDateFormat("yyyy MM dd HH:mm:ss", Locale.getDefault());
+
+    private final long   timeMillis               = 1493887049000L;// 2017-05-04 16:37:29
+    private final Date   timeDate                 = new Date(timeMillis);
+    private final String timeString               = defaultFormat.format(timeDate);
+    private final String timeStringFormat         = mFormat.format(timeDate);
+    private final long   tomorrowTimeMillis       = 1493973449000L;
+    private final Date   tomorrowTimeDate         = new Date(tomorrowTimeMillis);
+    private final String tomorrowTimeString       = defaultFormat.format(tomorrowTimeDate);
+    private final String tomorrowTimeStringFormat = mFormat.format(tomorrowTimeDate);
+    private final long   delta                    = 20;// 允许误差 10ms
+
+    @Test
+    public void millis2String() {
+        assertEquals(timeString, TimeUtils.millis2String(timeMillis));
+        assertEquals(timeStringFormat, TimeUtils.millis2String(timeMillis, mFormat));
+        assertEquals(timeStringFormat, TimeUtils.millis2String(timeMillis, "yyyy MM dd HH:mm:ss"));
+    }
+
+    @Test
+    public void string2Millis() {
+        assertEquals(timeMillis, TimeUtils.string2Millis(timeString));
+        assertEquals(timeMillis, TimeUtils.string2Millis(timeStringFormat, mFormat));
+        assertEquals(timeMillis, TimeUtils.string2Millis(timeStringFormat, "yyyy MM dd HH:mm:ss"));
+    }
+
+    @Test
+    public void string2Date() {
+        assertEquals(timeDate, TimeUtils.string2Date(timeString));
+        assertEquals(timeDate, TimeUtils.string2Date(timeStringFormat, mFormat));
+        assertEquals(timeDate, TimeUtils.string2Date(timeStringFormat, "yyyy MM dd HH:mm:ss"));
+    }
+
+    @Test
+    public void date2String() {
+        assertEquals(timeString, TimeUtils.date2String(timeDate));
+        assertEquals(timeStringFormat, TimeUtils.date2String(timeDate, mFormat));
+        assertEquals(timeStringFormat, TimeUtils.date2String(timeDate, "yyyy MM dd HH:mm:ss"));
+    }
+
+    @Test
+    public void date2Millis() {
+        assertEquals(timeMillis, TimeUtils.date2Millis(timeDate));
+    }
+
+    @Test
+    public void millis2Date() {
+        assertEquals(timeDate, TimeUtils.millis2Date(timeMillis));
+    }
+
+    @Test
+    public void getTimeSpan() {
+        long testTimeMillis = timeMillis + 120 * TimeConstants.SEC;
+        String testTimeString = TimeUtils.millis2String(testTimeMillis);
+        String testTimeStringFormat = TimeUtils.millis2String(testTimeMillis, mFormat);
+        Date testTimeDate = TimeUtils.millis2Date(testTimeMillis);
+        assertEquals(-120, TimeUtils.getTimeSpan(timeString, testTimeString, TimeConstants.SEC));
+        assertEquals(2, TimeUtils.getTimeSpan(testTimeStringFormat, timeStringFormat, mFormat, TimeConstants.MIN));
+        assertEquals(-2, TimeUtils.getTimeSpan(timeDate, testTimeDate, TimeConstants.MIN));
+        assertEquals(120, TimeUtils.getTimeSpan(testTimeMillis, timeMillis, TimeConstants.SEC));
+    }
+
+    @Test
+    public void getFitTimeSpan() {
+        long testTimeMillis = timeMillis + 10 * TimeConstants.DAY + 10 * TimeConstants.MIN + 10 * TimeConstants.SEC;
+        String testTimeString = TimeUtils.millis2String(testTimeMillis);
+        String testTimeStringFormat = TimeUtils.millis2String(testTimeMillis, mFormat);
+        Date testTimeDate = TimeUtils.millis2Date(testTimeMillis);
+        assertEquals("-10天10分钟10秒", TimeUtils.getFitTimeSpan(timeString, testTimeString, 5));
+        assertEquals("10天10分钟10秒", TimeUtils.getFitTimeSpan(testTimeStringFormat, timeStringFormat, mFormat, 5));
+        assertEquals("-10天10分钟10秒", TimeUtils.getFitTimeSpan(timeDate, testTimeDate, 5));
+        assertEquals("10天10分钟10秒", TimeUtils.getFitTimeSpan(testTimeMillis, timeMillis, 5));
+    }
+
+    @Test
+    public void getNowMills() {
+        assertEquals(System.currentTimeMillis(), TimeUtils.getNowMills(), delta);
+    }
+
+    @Test
+    public void getNowString() {
+        assertEquals(System.currentTimeMillis(), TimeUtils.string2Millis(TimeUtils.getNowString()), delta);
+        assertEquals(System.currentTimeMillis(), TimeUtils.string2Millis(TimeUtils.getNowString(mFormat), mFormat), delta);
+    }
+
+    @Test
+    public void getNowDate() {
+        assertEquals(System.currentTimeMillis(), TimeUtils.date2Millis(TimeUtils.getNowDate()), delta);
+    }
+
+    @Test
+    public void getTimeSpanByNow() {
+        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowString(), TimeConstants.MSEC), delta);
+        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowString(mFormat), mFormat, TimeConstants.MSEC), delta);
+        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowDate(), TimeConstants.MSEC), delta);
+        assertEquals(0, TimeUtils.getTimeSpanByNow(TimeUtils.getNowMills(), TimeConstants.MSEC), delta);
+    }
+
+    @Test
+    public void getFitTimeSpanByNow() {
+//        long spanMillis = 6 * TimeConstants.DAY + 6 * TimeConstants.HOUR + 6 * TimeConstants.MIN + 6 * TimeConstants.SEC;
+//        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(TimeUtils.millis2String(System.currentTimeMillis() + spanMillis), 4));
+//        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(TimeUtils.millis2String(System.currentTimeMillis() + spanMillis, mFormat), mFormat, 4));
+//        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(TimeUtils.millis2Date(System.currentTimeMillis() + spanMillis), 4));
+//        assertEquals("6天6小时6分钟6秒", TimeUtils.getFitTimeSpanByNow(System.currentTimeMillis() + spanMillis, 4));
+    }
+
+    @Test
+    public void getFriendlyTimeSpanByNow() {
+        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowString()));
+        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowString(mFormat), mFormat));
+        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowDate()));
+        assertEquals("刚刚", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowMills()));
+        assertEquals("1秒前", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowMills() - TimeConstants.SEC));
+        assertEquals("1分钟前", TimeUtils.getFriendlyTimeSpanByNow(TimeUtils.getNowMills() - TimeConstants.MIN));
+    }
+
+    @Test
+    public void getMillis() {
+        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeMillis, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeString, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeStringFormat, mFormat, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeMillis, TimeUtils.getMillis(timeDate, 1, TimeConstants.DAY));
+    }
+
+    @Test
+    public void getString() {
+        assertEquals(tomorrowTimeString, TimeUtils.getString(timeMillis, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeStringFormat, TimeUtils.getString(timeMillis, mFormat, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeString, TimeUtils.getString(timeString, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeStringFormat, TimeUtils.getString(timeStringFormat, mFormat, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeString, TimeUtils.getString(timeDate, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeStringFormat, TimeUtils.getString(timeDate, mFormat, 1, TimeConstants.DAY));
+    }
+
+    @Test
+    public void getDate() {
+        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeMillis, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeString, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeStringFormat, mFormat, 1, TimeConstants.DAY));
+        assertEquals(tomorrowTimeDate, TimeUtils.getDate(timeDate, 1, TimeConstants.DAY));
+    }
+
+    @Test
+    public void getMillisByNow() {
+        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, TimeUtils.getMillisByNow(1, TimeConstants.DAY), delta);
+    }
+
+    @Test
+    public void getStringByNow() {
+        long tomorrowMillis = TimeUtils.string2Millis(TimeUtils.getStringByNow(1, TimeConstants.DAY));
+        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, tomorrowMillis, delta);
+        tomorrowMillis = TimeUtils.string2Millis(TimeUtils.getStringByNow(1, mFormat, TimeConstants.DAY), mFormat);
+        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, tomorrowMillis, delta);
+    }
+
+    @Test
+    public void getDateByNow() {
+        long tomorrowMillis = TimeUtils.date2Millis(TimeUtils.getDateByNow(1, TimeConstants.DAY));
+        assertEquals(System.currentTimeMillis() + TimeConstants.DAY, TimeUtils.getMillisByNow(1, TimeConstants.DAY), delta);
+    }
+
+    @Test
+    public void isToday() {
+        long todayTimeMillis = System.currentTimeMillis();
+        String todayTimeString = TimeUtils.millis2String(todayTimeMillis);
+        String todayTimeStringFormat = TimeUtils.millis2String(todayTimeMillis, mFormat);
+        Date todayTimeDate = TimeUtils.millis2Date(todayTimeMillis);
+        long tomorrowTimeMillis = todayTimeMillis + TimeConstants.DAY;
+        String tomorrowTimeString = TimeUtils.millis2String(tomorrowTimeMillis);
+        Date tomorrowTimeDate = TimeUtils.millis2Date(tomorrowTimeMillis);
+        assertTrue(TimeUtils.isToday(todayTimeString));
+        assertTrue(TimeUtils.isToday(todayTimeStringFormat, mFormat));
+        assertTrue(TimeUtils.isToday(todayTimeDate));
+        assertTrue(TimeUtils.isToday(todayTimeMillis));
+        assertFalse(TimeUtils.isToday(tomorrowTimeString));
+        assertFalse(TimeUtils.isToday(tomorrowTimeStringFormat, mFormat));
+        assertFalse(TimeUtils.isToday(tomorrowTimeDate));
+        assertFalse(TimeUtils.isToday(tomorrowTimeMillis));
+    }
+
+    @Test
+    public void isLeapYear() {
+        assertFalse(TimeUtils.isLeapYear(timeString));
+        assertFalse(TimeUtils.isLeapYear(timeStringFormat, mFormat));
+        assertFalse(TimeUtils.isLeapYear(timeDate));
+        assertFalse(TimeUtils.isLeapYear(timeMillis));
+        assertTrue(TimeUtils.isLeapYear(2016));
+        assertFalse(TimeUtils.isLeapYear(2017));
+    }
+
+    @Test
+    public void getChineseWeek() {
+        assertEquals("星期四", TimeUtils.getChineseWeek(timeString));
+        assertEquals("星期四", TimeUtils.getChineseWeek(timeStringFormat, mFormat));
+        assertEquals("星期四", TimeUtils.getChineseWeek(timeDate));
+        assertEquals("星期四", TimeUtils.getChineseWeek(timeMillis));
+    }
+
+    @Test
+    public void getUSWeek() {
+        assertEquals("Thursday", TimeUtils.getUSWeek(timeString));
+        assertEquals("Thursday", TimeUtils.getUSWeek(timeStringFormat, mFormat));
+        assertEquals("Thursday", TimeUtils.getUSWeek(timeDate));
+        assertEquals("Thursday", TimeUtils.getUSWeek(timeMillis));
+    }
+
+    //@Test
+    //public void isAm() {
+    //    assertFalse(TimeUtils.isAm(timeMillis));
+    //}
+    //
+    //@Test
+    //public void isPm() {
+    //    assertTrue(TimeUtils.isPm(timeMillis));
+    //}
+
+    @Test
+    public void getWeekIndex() {
+        assertEquals(5, TimeUtils.getValueByCalendarField(timeString, Calendar.DAY_OF_WEEK));
+        assertEquals(5, TimeUtils.getValueByCalendarField(timeString, Calendar.DAY_OF_WEEK));
+        assertEquals(5, TimeUtils.getValueByCalendarField(timeStringFormat, mFormat, Calendar.DAY_OF_WEEK));
+        assertEquals(5, TimeUtils.getValueByCalendarField(timeDate, Calendar.DAY_OF_WEEK));
+        assertEquals(5, TimeUtils.getValueByCalendarField(timeMillis, Calendar.DAY_OF_WEEK));
+    }
+
+    @Test
+    public void getWeekOfMonth() {
+        assertEquals(1, TimeUtils.getValueByCalendarField(timeString, Calendar.WEEK_OF_MONTH));
+        assertEquals(1, TimeUtils.getValueByCalendarField(timeStringFormat, mFormat, Calendar.WEEK_OF_MONTH));
+        assertEquals(1, TimeUtils.getValueByCalendarField(timeDate, Calendar.WEEK_OF_MONTH));
+        assertEquals(1, TimeUtils.getValueByCalendarField(timeMillis, Calendar.WEEK_OF_MONTH));
+    }
+
+    @Test
+    public void getWeekOfYear() {
+        assertEquals(18, TimeUtils.getValueByCalendarField(timeString, Calendar.WEEK_OF_YEAR));
+        assertEquals(18, TimeUtils.getValueByCalendarField(timeStringFormat, mFormat, Calendar.WEEK_OF_YEAR));
+        assertEquals(18, TimeUtils.getValueByCalendarField(timeDate, Calendar.WEEK_OF_YEAR));
+        assertEquals(18, TimeUtils.getValueByCalendarField(timeMillis, Calendar.WEEK_OF_YEAR));
+    }
+
+    @Test
+    public void getChineseZodiac() {
+        assertEquals("鸡", TimeUtils.getChineseZodiac(timeString));
+        assertEquals("鸡", TimeUtils.getChineseZodiac(timeStringFormat, mFormat));
+        assertEquals("鸡", TimeUtils.getChineseZodiac(timeDate));
+        assertEquals("鸡", TimeUtils.getChineseZodiac(timeMillis));
+        assertEquals("鸡", TimeUtils.getChineseZodiac(2017));
+    }
+
+    @Test
+    public void getZodiac() {
+        assertEquals("金牛座", TimeUtils.getZodiac(timeString));
+        assertEquals("金牛座", TimeUtils.getZodiac(timeStringFormat, mFormat));
+        assertEquals("金牛座", TimeUtils.getZodiac(timeDate));
+        assertEquals("金牛座", TimeUtils.getZodiac(timeMillis));
+        assertEquals("狮子座", TimeUtils.getZodiac(8, 16));
+    }
 }
\ No newline at end of file
diff --git a/lib/utilcode/src/test/java/com/blankj/utilcode/util/UiMessageUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/UiMessageUtilsTest.java
new file mode 100644
index 0000000000..140dd77683
--- /dev/null
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/UiMessageUtilsTest.java
@@ -0,0 +1,65 @@
+package com.blankj.utilcode.util;
+
+
+import org.junit.Test;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/10/21
+ *     desc  : test UiMessageUtils
+ * </pre>
+ */
+public class UiMessageUtilsTest extends BaseTest {
+
+    @Test
+    public void singleMessageTest() {
+        UiMessageUtils.UiMessageCallback listener = new UiMessageUtils.UiMessageCallback() {
+            @Override
+            public void handleMessage(@NonNull UiMessageUtils.UiMessage localMessage) {
+                System.out.println("receive -> " + localMessage.getId() + ": " + localMessage.getObject());
+            }
+        };
+        UiMessageUtils.getInstance().addListener(listener);
+
+        UiMessageUtils.getInstance().send(1, "msg");
+
+        UiMessageUtils.getInstance().removeListener(listener);
+
+        UiMessageUtils.getInstance().send(1, "msg");
+    }
+
+    @Test
+    public void multiMessageTest() {
+        UiMessageUtils.UiMessageCallback listener = new UiMessageUtils.UiMessageCallback() {
+            @Override
+            public void handleMessage(@NonNull UiMessageUtils.UiMessage localMessage) {
+                switch (localMessage.getId()) {
+                    case 1:
+                        System.out.println("receive -> 1: " + localMessage.getObject());
+                        break;
+                    case 2:
+                        System.out.println("receive -> 2: " + localMessage.getObject());
+                        break;
+                    case 4:
+                        System.out.println("receive -> 4: " + localMessage.getObject());
+                        break;
+                }
+            }
+        };
+        UiMessageUtils.getInstance().addListener(listener);
+
+        UiMessageUtils.getInstance().send(1, "msg1");
+        UiMessageUtils.getInstance().send(2, "msg2");
+        UiMessageUtils.getInstance().send(4, "msg4");
+
+        UiMessageUtils.getInstance().removeListener(listener);
+
+        UiMessageUtils.getInstance().send(1, "msg1");
+        UiMessageUtils.getInstance().send(2, "msg2");
+        UiMessageUtils.getInstance().send(4, "msg4");
+    }
+}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
similarity index 93%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
index cbd79b4b63..558d1062c0 100644
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
+++ b/lib/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
@@ -19,7 +19,7 @@
  *     desc  : test ZipUtils
  * </pre>
  */
-public class ZipUtilsTest {
+public class ZipUtilsTest extends BaseTest {
 
     private String zipFile  = PATH_TEMP + "zipFile.zip";
     private String zipFiles = PATH_TEMP + "zipFiles.zip";
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/PrivateConstructors.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/PrivateConstructors.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/PrivateConstructors.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/PrivateConstructors.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test1.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test1.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test1.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test1.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test10.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test10.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test10.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test10.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test2.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test2.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test2.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test2.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test3.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test3.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test3.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test3.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test4.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test4.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test4.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test4.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test5.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test5.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test5.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test5.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test6.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test6.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test6.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test6.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test7.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test7.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test7.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test7.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test8.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test8.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test8.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test8.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test9.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test9.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/Test9.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/Test9.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsBase.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsBase.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsBase.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsBase.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsSubclass.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsSubclass.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsSubclass.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/TestHierarchicalMethodsSubclass.java
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/TestPrivateStaticFinal.java b/lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/TestPrivateStaticFinal.java
similarity index 100%
rename from utilcode/lib/src/test/java/com/blankj/utilcode/util/reflect/TestPrivateStaticFinal.java
rename to lib/utilcode/src/test/java/com/blankj/utilcode/util/reflect/TestPrivateStaticFinal.java
diff --git a/utilcode/lib/src/test/res/encrypt/MD5.txt b/lib/utilcode/src/test/res/encrypt/MD5.txt
similarity index 100%
rename from utilcode/lib/src/test/res/encrypt/MD5.txt
rename to lib/utilcode/src/test/res/encrypt/MD5.txt
diff --git a/lib/utilcode/src/test/res/file/GBK.txt b/lib/utilcode/src/test/res/file/GBK.txt
new file mode 100644
index 0000000000..3d8088b4cc
--- /dev/null
+++ b/lib/utilcode/src/test/res/file/GBK.txt
@@ -0,0 +1,2 @@
+GBK
+�Ұ��й�
\ No newline at end of file
diff --git a/utilcode/lib/src/test/res/file/UTF16BE.txt b/lib/utilcode/src/test/res/file/UTF16BE.txt
similarity index 100%
rename from utilcode/lib/src/test/res/file/UTF16BE.txt
rename to lib/utilcode/src/test/res/file/UTF16BE.txt
diff --git a/utilcode/lib/src/test/res/file/UTF8.txt b/lib/utilcode/src/test/res/file/UTF8.txt
similarity index 100%
rename from utilcode/lib/src/test/res/file/UTF8.txt
rename to lib/utilcode/src/test/res/file/UTF8.txt
diff --git a/utilcode/lib/src/test/res/file/Unicode.txt b/lib/utilcode/src/test/res/file/Unicode.txt
similarity index 100%
rename from utilcode/lib/src/test/res/file/Unicode.txt
rename to lib/utilcode/src/test/res/file/Unicode.txt
diff --git a/utilcode/lib/src/test/res/file/recuresive/UTF8.txt b/lib/utilcode/src/test/res/file/recuresive/UTF8.txt
similarity index 100%
rename from utilcode/lib/src/test/res/file/recuresive/UTF8.txt
rename to lib/utilcode/src/test/res/file/recuresive/UTF8.txt
diff --git a/lib/utilcode/src/test/res/image/ic_launcher.bmp b/lib/utilcode/src/test/res/image/ic_launcher.bmp
new file mode 100644
index 0000000000..2880951dd9
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diff --git a/lib/utilcode/src/test/res/image/ic_launcher.gif b/lib/utilcode/src/test/res/image/ic_launcher.gif
new file mode 100644
index 0000000000..c0f6c2d2cf
Binary files /dev/null and b/lib/utilcode/src/test/res/image/ic_launcher.gif differ
diff --git a/lib/utilcode/src/test/res/image/ic_launcher.ico b/lib/utilcode/src/test/res/image/ic_launcher.ico
new file mode 100644
index 0000000000..29c1341f2f
Binary files /dev/null and b/lib/utilcode/src/test/res/image/ic_launcher.ico differ
diff --git a/lib/utilcode/src/test/res/image/ic_launcher.jpg b/lib/utilcode/src/test/res/image/ic_launcher.jpg
new file mode 100644
index 0000000000..891ff8544f
Binary files /dev/null and b/lib/utilcode/src/test/res/image/ic_launcher.jpg differ
diff --git a/lib/resource/src/main/res-base/mipmap-xhdpi/ic_launcher.png b/lib/utilcode/src/test/res/image/ic_launcher.png
similarity index 100%
rename from lib/resource/src/main/res-base/mipmap-xhdpi/ic_launcher.png
rename to lib/utilcode/src/test/res/image/ic_launcher.png
diff --git a/lib/utilcode/src/test/res/image/ic_launcher.tif b/lib/utilcode/src/test/res/image/ic_launcher.tif
new file mode 100644
index 0000000000..e96f82c566
Binary files /dev/null and b/lib/utilcode/src/test/res/image/ic_launcher.tif differ
diff --git a/lib/utilcode/src/test/res/image/ic_launcher.webp b/lib/utilcode/src/test/res/image/ic_launcher.webp
new file mode 100644
index 0000000000..a6bee1b251
Binary files /dev/null and b/lib/utilcode/src/test/res/image/ic_launcher.webp differ
diff --git a/utilcode/lib/src/test/res/zip/test.txt b/lib/utilcode/src/test/res/zip/test.txt
similarity index 100%
rename from utilcode/lib/src/test/res/zip/test.txt
rename to lib/utilcode/src/test/res/zip/test.txt
diff --git a/utilcode/lib/src/test/res/zip/testDir/test.txt b/lib/utilcode/src/test/res/zip/testDir/test.txt
similarity index 100%
rename from utilcode/lib/src/test/res/zip/testDir/test.txt
rename to lib/utilcode/src/test/res/zip/testDir/test.txt
diff --git "a/utilcode/lib/src/test/res/zip/\346\265\213\350\257\225.txt" "b/lib/utilcode/src/test/res/zip/\346\265\213\350\257\225.txt"
similarity index 100%
rename from "utilcode/lib/src/test/res/zip/\346\265\213\350\257\225.txt"
rename to "lib/utilcode/src/test/res/zip/\346\265\213\350\257\225.txt"
diff --git "a/utilcode/lib/src/test/res/zip/\346\265\213\350\257\225\346\226\207\344\273\266\345\244\271/\346\265\213\350\257\225.txt" "b/lib/utilcode/src/test/res/zip/\346\265\213\350\257\225\346\226\207\344\273\266\345\244\271/\346\265\213\350\257\225.txt"
similarity index 100%
rename from "utilcode/lib/src/test/res/zip/\346\265\213\350\257\225\346\226\207\344\273\266\345\244\271/\346\265\213\350\257\225.txt"
rename to "lib/utilcode/src/test/res/zip/\346\265\213\350\257\225\346\226\207\344\273\266\345\244\271/\346\265\213\350\257\225.txt"
diff --git a/lib/utildebug-no-op/.gitignore b/lib/utildebug-no-op/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/lib/utildebug-no-op/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/lib/utildebug-no-op/build.gradle b/lib/utildebug-no-op/build.gradle
new file mode 100644
index 0000000000..ea7c33315a
--- /dev/null
+++ b/lib/utildebug-no-op/build.gradle
@@ -0,0 +1,6 @@
+apply {
+}
+
+dependencies {
+
+}
\ No newline at end of file
diff --git a/lib/utildebug-no-op/proguard-rules.pro b/lib/utildebug-no-op/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/lib/utildebug-no-op/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/lib/utildebug-no-op/src/main/AndroidManifest.xml b/lib/utildebug-no-op/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..5c62504b4e
--- /dev/null
+++ b/lib/utildebug-no-op/src/main/AndroidManifest.xml
@@ -0,0 +1,3 @@
+<manifest package="com.blankj.utildebug">
+
+</manifest>
diff --git a/lib/utildebug-no-op/src/main/java/com/blankj/utildebug/DebugUtils.java b/lib/utildebug-no-op/src/main/java/com/blankj/utildebug/DebugUtils.java
new file mode 100644
index 0000000000..171fc2d605
--- /dev/null
+++ b/lib/utildebug-no-op/src/main/java/com/blankj/utildebug/DebugUtils.java
@@ -0,0 +1,26 @@
+package com.blankj.utildebug;
+
+import com.blankj.utildebug.debug.IDebug;
+
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/28
+ *     desc  : utils about debug
+ * </pre>
+ */
+public class DebugUtils {
+
+    private DebugUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    public static void setIconId(final int icon) {
+    }
+
+    public static void addDebugs(final List<IDebug> debugs) {
+    }
+}
diff --git a/lib/utildebug-no-op/src/main/java/com/blankj/utildebug/debug/IDebug.java b/lib/utildebug-no-op/src/main/java/com/blankj/utildebug/debug/IDebug.java
new file mode 100644
index 0000000000..0a4d6ae182
--- /dev/null
+++ b/lib/utildebug-no-op/src/main/java/com/blankj/utildebug/debug/IDebug.java
@@ -0,0 +1,30 @@
+package com.blankj.utildebug.debug;
+
+import android.content.Context;
+import android.view.View;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/28
+ *     desc  :
+ * </pre>
+ */
+public interface IDebug {
+
+    void onAppCreate(Context context);
+
+    int getCategory();
+
+    int getIcon();
+
+    int getName();
+
+    void onClick(View view);
+
+    int TOOLS       = 0;
+    int PERFORMANCE = 1;
+    int UI          = 2;
+    int BIZ         = 3;
+}
diff --git a/lib/utildebug/.gitignore b/lib/utildebug/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/lib/utildebug/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/lib/utildebug/build.gradle b/lib/utildebug/build.gradle
new file mode 100644
index 0000000000..d1c5a67273
--- /dev/null
+++ b/lib/utildebug/build.gradle
@@ -0,0 +1,12 @@
+dependencies {
+    compileOnly Config.libs.androidx_appcompat.path
+    compileOnly Config.libs.androidx_material.path
+
+    implementation Config.modules.lib_utilcode.dep
+    implementation Config.libs.swipe_panel.path
+    implementation Config.libs.photo_view.path
+
+    testImplementation Config.libs.test_junit.path
+    testImplementation Config.libs.test_robolectric.path
+    testImplementation Config.libs.androidx_appcompat.path
+}
\ No newline at end of file
diff --git a/lib/utildebug/proguard-rules.pro b/lib/utildebug/proguard-rules.pro
new file mode 100644
index 0000000000..f1b424510d
--- /dev/null
+++ b/lib/utildebug/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/lib/utildebug/src/main/AndroidManifest.xml b/lib/utildebug/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..5eb3829377
--- /dev/null
+++ b/lib/utildebug/src/main/AndroidManifest.xml
@@ -0,0 +1,6 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.blankj.utildebug" >
+
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+
+</manifest>
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/DebugUtils.java b/lib/utildebug/src/main/java/com/blankj/utildebug/DebugUtils.java
new file mode 100644
index 0000000000..e7ec186566
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/DebugUtils.java
@@ -0,0 +1,105 @@
+package com.blankj.utildebug;
+
+import android.app.Activity;
+import android.app.Application;
+import android.os.Bundle;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+
+import com.blankj.utilcode.util.Utils;
+import com.blankj.utildebug.debug.IDebug;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+import com.blankj.utildebug.icon.DebugIcon;
+import com.blankj.utildebug.menu.DebugMenu;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import androidx.annotation.DrawableRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/28
+ *     desc  : utils about debug
+ * </pre>
+ */
+public class DebugUtils {
+
+    private DebugUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    static {
+        List<IDebug> debugList = new ArrayList<>();
+        AbsToolDebug.addToolDebugs(debugList);
+        DebugMenu.getInstance().setDebugs(debugList);
+        getApp().registerActivityLifecycleCallbacks(ActivityLifecycleImpl.instance);
+    }
+
+    public static void setIconId(final @DrawableRes int icon) {
+        DebugIcon.getInstance().setIconId(icon);
+    }
+
+    public static void addDebugs(final List<IDebug> debugs) {
+        DebugMenu.getInstance().addDebugs(debugs);
+    }
+
+    public static Application getApp() {
+        return Utils.getApp();
+    }
+
+    static class ActivityLifecycleImpl implements Application.ActivityLifecycleCallbacks {
+
+        private static ActivityLifecycleImpl instance = new ActivityLifecycleImpl();
+
+        private int                    mConfigCount = 0;
+        private ViewGroup.LayoutParams mParams      = new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT
+        );
+
+        @Override
+        public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
+
+        }
+
+        @Override
+        public void onActivityStarted(Activity activity) {
+            if (mConfigCount < 0) {
+                ++mConfigCount;
+            }
+        }
+
+        @Override
+        public void onActivityResumed(Activity activity) {
+            ViewParent parent = DebugIcon.getInstance().getParent();
+            if (parent != null) {
+                ((ViewGroup) parent).removeView(DebugIcon.getInstance());
+            }
+            ((ViewGroup) activity.findViewById(android.R.id.content)).addView(DebugIcon.getInstance(), mParams);
+        }
+
+        @Override
+        public void onActivityPaused(Activity activity) {
+            ((ViewGroup) activity.findViewById(android.R.id.content)).removeView(DebugIcon.getInstance());
+        }
+
+        @Override
+        public void onActivityStopped(Activity activity) {
+            if (activity.isChangingConfigurations()) {
+                --mConfigCount;
+            }
+        }
+
+        @Override
+        public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
+
+        }
+
+        @Override
+        public void onActivityDestroyed(Activity activity) {
+
+        }
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/drawable/PolygonDrawable.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/drawable/PolygonDrawable.java
new file mode 100644
index 0000000000..0bf3ffa876
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/drawable/PolygonDrawable.java
@@ -0,0 +1,69 @@
+package com.blankj.utildebug.base.drawable;
+
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public class PolygonDrawable extends Drawable {
+
+    private Paint mPaint;
+    private int   mNum;
+
+    public PolygonDrawable(int num, int color) {
+        mNum = num;
+        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
+        mPaint.setStyle(Paint.Style.FILL);
+        mPaint.setColor(color);
+    }
+
+    @Override
+    public void draw(@NonNull Canvas canvas) {
+        if (mNum < 3) return;
+        final Rect rect = getBounds();
+        float r = rect.right / 2;
+        float x = r;
+        float y = r;
+        Path path = new Path();
+        for (int i = 0; i <= mNum; i++) {
+            float alpha = Double.valueOf(((2f / mNum) * i - 0.5) * Math.PI).floatValue();
+            float nextX = x + Double.valueOf(r * Math.cos(alpha)).floatValue();
+            float nextY = y + Double.valueOf(r * Math.sin(alpha)).floatValue();
+            if (i == 0) {
+                path.moveTo(nextX, nextY);
+            } else {
+                path.lineTo(nextX, nextY);
+            }
+        }
+        canvas.drawPath(path, mPaint);
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+
+    }
+
+    @Override
+    public void setColorFilter(@Nullable ColorFilter colorFilter) {
+
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.OPAQUE;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/BaseItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/BaseItem.java
new file mode 100644
index 0000000000..f06185f3b8
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/BaseItem.java
@@ -0,0 +1,92 @@
+package com.blankj.utildebug.base.rv;
+
+import android.util.SparseArray;
+import android.util.SparseIntArray;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/03/16
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseItem<T extends BaseItem> {
+
+    private static final SparseIntArray    LAYOUT_SPARSE_ARRAY = new SparseIntArray();
+    private static final SparseArray<View> VIEW_SPARSE_ARRAY   = new SparseArray<>();
+
+    static ItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        int layoutByType = LAYOUT_SPARSE_ARRAY.get(viewType, -1);
+        if (layoutByType != -1) {
+            return new ItemViewHolder(LayoutInflater.from(parent.getContext()).inflate(layoutByType, parent, false));
+        }
+        View viewByType = VIEW_SPARSE_ARRAY.get(viewType);
+        if (viewByType != null) {
+            return new ItemViewHolder(viewByType);
+        }
+        throw new RuntimeException("onCreateViewHolder: get holder from view type failed.");
+    }
+
+    public abstract void bind(@NonNull final ItemViewHolder holder, final int position);
+
+    public void onViewRecycled(@NonNull final ItemViewHolder holder, final int position) {/**/}
+
+    public long getItemId() {
+        return RecyclerView.NO_ID;
+    }
+
+    private int viewType;
+    BaseItemAdapter<T> mAdapter;
+
+    public BaseItem(@LayoutRes int layoutId) {
+        viewType = getViewTypeByLayoutId(layoutId);
+        LAYOUT_SPARSE_ARRAY.put(viewType, layoutId);
+    }
+
+    public BaseItem(@NonNull View view) {
+        viewType = getViewTypeByView(view);
+        VIEW_SPARSE_ARRAY.put(viewType, view);
+    }
+
+    public int getViewType() {
+        return viewType;
+    }
+
+    public BaseItemAdapter<T> getAdapter() {
+        return mAdapter;
+    }
+
+    public boolean isViewType(@LayoutRes int layoutId) {
+        return viewType == getViewTypeByLayoutId(layoutId);
+    }
+
+    public boolean isViewType(@NonNull View view) {
+        return viewType == getViewTypeByView(view);
+    }
+
+    private int getViewTypeByLayoutId(@LayoutRes int layoutId) {
+        return layoutId + getClass().hashCode();
+    }
+
+    private int getViewTypeByView(@NonNull View view) {
+        return view.hashCode() + getClass().hashCode();
+    }
+
+    public void update() {
+        //noinspection unchecked
+        getAdapter().updateItem((T) this);
+    }
+
+    public int getIndex() {
+        //noinspection SuspiciousMethodCalls
+        return getAdapter().getItems().indexOf(this);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/BaseItemAdapter.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/BaseItemAdapter.java
new file mode 100644
index 0000000000..e1a7c618cf
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/BaseItemAdapter.java
@@ -0,0 +1,272 @@
+package com.blankj.utildebug.base.rv;
+
+import android.view.ViewGroup;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import androidx.annotation.IntRange;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/08/22
+ *     desc  :
+ * </pre>
+ */
+public class BaseItemAdapter<Item extends BaseItem> extends RecyclerView.Adapter<ItemViewHolder> {
+
+    public  List<Item>   mItems;
+    private RecyclerView mRecyclerView;
+
+    public BaseItemAdapter() {
+        this(false);
+    }
+
+    public BaseItemAdapter(boolean hasStableIds) {
+        setHasStableIds(hasStableIds);
+    }
+
+    @Override
+    public final int getItemViewType(int position) {
+        Item item = mItems.get(position);
+        item.mAdapter = this;
+        return item.getViewType();
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return mItems.get(position).getItemId();
+    }
+
+    @NonNull
+    @Override
+    public ItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return Item.onCreateViewHolder(parent, viewType);
+    }
+
+    @Override
+    public final void onBindViewHolder(@NonNull ItemViewHolder holder, int position) {
+        mItems.get(position).bind(holder, position);
+    }
+
+    @Override
+    public int getItemCount() {
+        return mItems.size();
+    }
+
+    @Override
+    public void onViewRecycled(@NonNull ItemViewHolder holder) {
+        super.onViewRecycled(holder);
+        int position = holder.getAdapterPosition();
+        if (position < 0 || position >= mItems.size()) {
+            return;
+        }
+        mItems.get(position).onViewRecycled(holder, position);
+    }
+
+    @Override
+    public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
+        super.onAttachedToRecyclerView(recyclerView);
+        mRecyclerView = recyclerView;
+    }
+
+    public RecyclerView getRecyclerView() {
+        return mRecyclerView;
+    }
+
+    public void setItems(@NonNull final List<Item> items) {
+        mItems = items;
+    }
+
+    public List<Item> getItems() {
+        return Collections.unmodifiableList(mItems);
+    }
+
+    public Item getItem(@IntRange(from = 0) final int position) {
+        return mItems.get(position);
+    }
+
+    public boolean isEmpty() {
+        return mItems.isEmpty();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // id
+    ///////////////////////////////////////////////////////////////////////////
+
+    public Item getItemById(final long id) {
+        int itemIndex = getItemIndexById(id);
+        if (itemIndex != -1) {
+            return mItems.get(itemIndex);
+        } else {
+            return null;
+        }
+    }
+
+    public int getItemIndexById(final long id) {
+        for (int i = 0; i < mItems.size(); i++) {
+            if (getItemId(i) == id) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    public boolean hasItemWithId(final long id) {
+        return getItemIndexById(id) != -1;
+    }
+
+    public int replaceItemById(final long id, @NonNull final Item item) {
+        return replaceItemById(id, item, false);
+    }
+
+    public int replaceItemById(final long id, @NonNull final Item item, boolean notifyChanged) {
+        int itemIndex = getItemIndexById(id);
+        if (itemIndex != -1) {
+            replaceItem(itemIndex, item, notifyChanged);
+        }
+        return itemIndex;
+    }
+
+    public int removeItemById(final long id) {
+        return removeItemById(id, false);
+    }
+
+    public int removeItemById(final long id, boolean notifyRemoved) {
+        for (int i = 0; i < mItems.size(); i++) {
+            if (getItemId(i) == id) {
+                removeItem(i, notifyRemoved);
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // operate
+    ///////////////////////////////////////////////////////////////////////////
+
+    public void updateItem(@NonNull final Item item) {
+        int itemIndex = mItems.indexOf(item);
+        if (itemIndex != -1) {
+            notifyItemChanged(itemIndex);
+        }
+    }
+
+    public void updateItem(@IntRange(from = 0) final int index) {
+        notifyItemChanged(index);
+    }
+
+    public void addItem(@NonNull final Item item) {
+        addItem(item, false);
+    }
+
+    public void addItem(@NonNull final Item item, boolean notifyInserted) {
+        mItems.add(item);
+        if (notifyInserted) notifyItemInserted(mItems.size() - 1);
+    }
+
+    public void addItem(@IntRange(from = 0) final int index, @NonNull final Item item) {
+        addItem(index, item, false);
+    }
+
+    public void addItem(@IntRange(from = 0) final int index, @NonNull final Item item, boolean notifyInserted) {
+        mItems.add(index, item);
+        if (notifyInserted) notifyItemInserted(index);
+    }
+
+    public void addItems(@NonNull final List<Item> items) {
+        addItems(items, false);
+    }
+
+    public void addItems(@NonNull final List<Item> items, boolean notifyInserted) {
+        mItems.addAll(items);
+        if (notifyInserted) notifyItemRangeInserted(mItems.size() - items.size() - 1, items.size());
+    }
+
+    public void addItems(@IntRange(from = 0) final int index, @NonNull final List<Item> items) {
+        addItems(index, items, false);
+    }
+
+    public void addItems(@IntRange(from = 0) final int index, @NonNull final List<Item> items, boolean notifyInserted) {
+        mItems.addAll(index, items);
+        if (notifyInserted) notifyItemRangeInserted(index, items.size());
+    }
+
+    public void swapItem(@IntRange(from = 0) final int firstIndex, @IntRange(from = 0) final int secondIndex) {
+        swapItem(firstIndex, secondIndex, false);
+    }
+
+    public void swapItem(@IntRange(from = 0) final int firstIndex,
+                         @IntRange(from = 0) final int secondIndex, boolean notifyMoved) {
+        Collections.swap(mItems, firstIndex, secondIndex);
+        if (notifyMoved) notifyItemMoved(firstIndex, secondIndex);
+    }
+
+    public Item replaceItem(@IntRange(from = 0) final int index, @NonNull final Item item) {
+        return replaceItem(index, item, false);
+    }
+
+    public Item replaceItem(@IntRange(from = 0) final int index, @NonNull final Item item, boolean notifyChanged) {
+        Item prevItem = mItems.set(index, item);
+        if (notifyChanged) notifyItemChanged(index);
+        return prevItem;
+    }
+
+    public boolean replaceItems(@NonNull final List<Item> items) {
+        return replaceItems(items, false);
+    }
+
+    public boolean replaceItems(@NonNull final List<Item> items, boolean notifyChanged) {
+        mItems.clear();
+        boolean added = mItems.addAll(items);
+        if (notifyChanged) notifyDataSetChanged();
+        return added;
+    }
+
+    public Item removeItem(@IntRange(from = 0) final int index) {
+        return removeItem(index, false);
+    }
+
+    public Item removeItem(@IntRange(from = 0) final int index, boolean notifyRemoved) {
+        Item removedItem = mItems.remove(index);
+        if (notifyRemoved) notifyItemRemoved(index);
+        return removedItem;
+    }
+
+    public int removeItem(@NonNull final Item item) {
+        return removeItem(item, false);
+    }
+
+    public int removeItem(@NonNull final Item item, boolean notifyRemoved) {
+        int itemIndex = mItems.indexOf(item);
+        if (itemIndex != -1) {
+            mItems.remove(itemIndex);
+            if (notifyRemoved) notifyItemRemoved(itemIndex);
+        }
+        return itemIndex;
+    }
+
+    public void clear() {
+        clear(false);
+    }
+
+    public void clear(boolean notifyDataSetChanged) {
+        mItems.clear();
+        if (notifyDataSetChanged) notifyDataSetChanged();
+    }
+
+    public void sortItems(@NonNull final Comparator<Item> comparator) {
+        sortItems(comparator, false);
+    }
+
+    public void sortItems(@NonNull final Comparator<Item> comparator, boolean notifyDataSetChanged) {
+        Collections.sort(mItems, comparator);
+        if (notifyDataSetChanged) notifyDataSetChanged();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/ItemViewHolder.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/ItemViewHolder.java
new file mode 100644
index 0000000000..45020e5659
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/ItemViewHolder.java
@@ -0,0 +1,42 @@
+package com.blankj.utildebug.base.rv;
+
+import android.util.SparseArray;
+import android.view.View;
+
+import androidx.annotation.IdRes;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2017/08/22
+ *     desc  :
+ * </pre>
+ */
+public class ItemViewHolder extends RecyclerView.ViewHolder {
+
+    private SparseArray<View> viewArray = new SparseArray<>();
+
+    public ItemViewHolder(View itemView) {
+        super(itemView);
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T extends View> T findViewById(@IdRes final int viewId) {
+        View view = viewArray.get(viewId);
+        if (view == null) {
+            view = itemView.findViewById(viewId);
+            viewArray.put(viewId, view);
+        }
+        return (T) view;
+    }
+
+    public void setOnClickListener(@IdRes final int viewId, View.OnClickListener listener) {
+        findViewById(viewId).setOnClickListener(listener);
+    }
+
+    public void setOnLongClickListener(@IdRes final int viewId, View.OnLongClickListener listener) {
+        findViewById(viewId).setOnLongClickListener(listener);
+    }
+}
diff --git a/app/src/main/java/com/blankj/androidutilcode/base/rv/RecycleViewDivider.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/RecycleViewDivider.java
similarity index 80%
rename from app/src/main/java/com/blankj/androidutilcode/base/rv/RecycleViewDivider.java
rename to lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/RecycleViewDivider.java
index b4805264fe..8026646352 100644
--- a/app/src/main/java/com/blankj/androidutilcode/base/rv/RecycleViewDivider.java
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/rv/RecycleViewDivider.java
@@ -1,18 +1,19 @@
-package com.blankj.androidutilcode.base.rv;
+package com.blankj.utildebug.base.rv;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.NonNull;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 import android.widget.LinearLayout;
 
+import androidx.annotation.DrawableRes;
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * <pre>
  *     author: Blankj
@@ -28,20 +29,30 @@ public class RecycleViewDivider extends RecyclerView.ItemDecoration {
 
     protected Drawable mDivider;
 
-    protected int mOrientation;
+    protected int     mOrientation;
+    protected boolean mShowFooterDivider;
 
     protected final Rect mBounds = new Rect();
 
     public RecycleViewDivider(Context context, int orientation, @DrawableRes int resId) {
-        this(context, orientation, ContextCompat.getDrawable(context, resId));
+        this(context, orientation, resId, false);
     }
 
     public RecycleViewDivider(Context context, int orientation, @NonNull Drawable divider) {
+        this(context, orientation, divider, false);
+    }
+
+    public RecycleViewDivider(Context context, int orientation, @DrawableRes int resId, boolean showFooterDivider) {
+        this(context, orientation, ContextCompat.getDrawable(context, resId), showFooterDivider);
+    }
+
+    public RecycleViewDivider(Context context, int orientation, @NonNull Drawable divider, boolean showFooterDivider) {
         setOrientation(orientation);
         mDivider = divider;
+        mShowFooterDivider = showFooterDivider;
     }
 
-    public void setOrientation(int orientation) {
+    private void setOrientation(int orientation) {
         if (orientation != HORIZONTAL && orientation != VERTICAL) {
             throw new IllegalArgumentException(
                     "Invalid orientation. It should be either HORIZONTAL or VERTICAL");
@@ -78,6 +89,7 @@ protected void drawVertical(Canvas canvas, RecyclerView parent) {
 
         final int childCount = parent.getChildCount();
         for (int i = 0; i < childCount; i++) {
+            if (i == childCount - 1 && !mShowFooterDivider) continue;
             final View child = parent.getChildAt(i);
             parent.getDecoratedBoundsWithMargins(child, mBounds);
             final int bottom = mBounds.bottom + Math.round(ViewCompat.getTranslationY(child));
@@ -105,6 +117,7 @@ protected void drawHorizontal(Canvas canvas, RecyclerView parent) {
 
         final int childCount = parent.getChildCount();
         for (int i = 0; i < childCount; i++) {
+            if (i == childCount - 1 && !mShowFooterDivider) continue;
             final View child = parent.getChildAt(i);
             parent.getLayoutManager().getDecoratedBoundsWithMargins(child, mBounds);
             final int right = mBounds.right + Math.round(ViewCompat.getTranslationX(child));
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseContentFloatView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseContentFloatView.java
new file mode 100644
index 0000000000..55c2c5b5b3
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseContentFloatView.java
@@ -0,0 +1,349 @@
+package com.blankj.utildebug.base.view;
+
+import android.content.res.Configuration;
+import android.graphics.drawable.Drawable;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.blankj.swipepanel.SwipePanel;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.SizeUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utilcode.util.TouchUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.listener.OnRefreshListener;
+import com.blankj.utildebug.config.DebugConfig;
+import com.blankj.utildebug.helper.ShadowHelper;
+import com.blankj.utildebug.helper.WindowHelper;
+
+import java.util.Stack;
+
+import androidx.annotation.LayoutRes;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/30
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseContentFloatView<T extends BaseContentFloatView<T>> extends BaseFloatView {
+
+    private static final int ROTATE_DELAY = 30;
+
+    private LinearLayout       bcfRootLayout;
+    private RelativeLayout     bcfTitleRl;
+    private ImageView          bcfCloseIv;
+    private TextView           bcfTitleTv;
+    private ImageView          bcfAdjustIv;
+    private SwipePanel         swipePanel;
+    private BaseContentView<T> mContentView;
+
+    private OnRefreshListener mRefreshListener;
+    private Runnable          mRotateRunnable = new Runnable() {
+        @Override
+        public void run() {
+            Drawable topDrawable = swipePanel.getTopDrawable();
+            topDrawable.setLevel(topDrawable.getLevel() + 500);
+            swipePanel.invalidate();
+            startRotate();
+        }
+    };
+
+    private static final ViewGroup.LayoutParams PARAMS = new ViewGroup.LayoutParams(
+            ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT
+    );
+
+    private Stack<BaseContentView<T>> mViewStack = new Stack<>();
+
+    @StringRes
+    public abstract int bindTitle();
+
+    @LayoutRes
+    public abstract int bindContentLayout();
+
+    @Override
+    public int bindLayout() {
+        return R.layout.du_base_content_float;
+    }
+
+    public BaseContentFloatView() {
+        bcfRootLayout = findViewById(R.id.bcfRootLayout);
+        ShadowHelper.applyFloatView(bcfRootLayout);
+
+        initTitleBar();
+        initSwipePanel();
+
+        if (bindContentLayout() != NO_ID) {
+            //noinspection unchecked
+            new BaseContentView<T>() {
+                @Override
+                public int bindLayout() {
+                    return BaseContentFloatView.this.bindContentLayout();
+                }
+
+                @Override
+                public void onAttach() {
+                }
+            }.attach((T) this, true);
+        }
+    }
+
+    public void setTitle(CharSequence title) {
+        bcfTitleTv.setText(title);
+    }
+
+    void setOnRefreshListener(OnRefreshListener listener) {
+        mRefreshListener = listener;
+    }
+
+    void setRefreshEnabled(boolean enabled) {
+        swipePanel.setTopEnabled(enabled);
+    }
+
+    public void setSwipeBackEnabled(boolean enabled) {
+        swipePanel.setLeftEnabled(enabled);
+    }
+
+    public void back() {
+        swipePanel.close(SwipePanel.TOP, false);// 返回先关闭刷新
+        swipePanel.removeAllViews();
+        if (mContentView == null) {
+            dismiss();
+            return;
+        }
+        mContentView.onBack();
+        if (mViewStack.isEmpty()) {
+            dismiss();
+            return;
+        }
+        if (mContentView.isAddStack()) {
+            mViewStack.pop();
+        }
+        if (mViewStack.isEmpty()) {
+            dismiss();
+            return;
+        }
+        BaseContentView<T> peek = mViewStack.peek();
+        swipePanel.addView(peek, PARAMS);
+        setOnRefreshListener(peek.getOnRefreshListener());
+        setRefreshEnabled(peek.isRefreshEnabled());
+        mContentView = peek;
+    }
+
+    public void closeRefresh() {
+        postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                swipePanel.close(SwipePanel.TOP);
+            }
+        }, 500);
+    }
+
+    public BaseContentView<T> getContentView() {
+        return mContentView;
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        DebugConfig.saveViewY(this, mLayoutParams.y);
+        DebugConfig.saveViewHeight(this, mLayoutParams.height);
+        DebugConfig.saveViewAlpha(this, mLayoutParams.alpha);
+        super.onDetachedFromWindow();
+    }
+
+    void replace(BaseContentView<T> view, boolean isAddStack) {
+        if (view == null) return;
+        if (isAddStack) {
+            mViewStack.add(view);
+        }
+        swipePanel.removeAllViews();
+        mContentView = view;
+        mContentView.onAttach();
+        swipePanel.addView(mContentView, PARAMS);
+    }
+
+    private void initTitleBar() {
+        bcfTitleRl = findViewById(R.id.bcfTitleRl);
+        bcfCloseIv = findViewById(R.id.bcfCloseIv);
+        bcfTitleTv = findViewById(R.id.bcfTitleTv);
+        bcfAdjustIv = findViewById(R.id.bcfAdjustIv);
+
+        bcfTitleTv.setText(bindTitle());
+
+        ClickUtils.applyPressedBgDark(bcfTitleRl);
+        bcfTitleRl.setOnClickListener(new ClickUtils.OnMultiClickListener(2) {
+            @Override
+            public void onTriggerClick(View v) {
+                mLayoutParams.alpha = mLayoutParams.alpha == 0.5f ? 1f : 0.5f;
+                WindowHelper.updateViewLayout(BaseContentFloatView.this, mLayoutParams);
+                DebugConfig.saveViewAlpha(BaseContentFloatView.this, mLayoutParams.alpha);
+            }
+
+            @Override
+            public void onBeforeTriggerClick(View v, int count) {
+                if (count == 1) {
+
+                }
+            }
+        });
+        TouchUtils.setOnTouchListener(bcfTitleRl, new TouchUtils.OnTouchUtilsListener() {
+            @Override
+            public boolean onDown(View view, int x, int y, MotionEvent event) {
+                return true;
+            }
+
+            @Override
+            public boolean onMove(View view, int direction, int x, int y, int dx, int dy, int totalX, int totalY, MotionEvent event) {
+                mLayoutParams.y = Math.min(Math.max(mLayoutParams.y + dy, 0), WindowHelper.getAppWindowHeight() - bcfRootLayout.getHeight());
+                WindowHelper.updateViewLayout(BaseContentFloatView.this, mLayoutParams);
+                return true;
+            }
+
+            @Override
+            public boolean onStop(View view, int direction, int x, int y, int totalX, int totalY, int vx, int vy, MotionEvent event) {
+                DebugConfig.saveViewY(BaseContentFloatView.this, mLayoutParams.y);
+                return true;
+            }
+        });
+
+        ClickUtils.applyPressedBgDark(bcfCloseIv, 0.8f);
+        bcfCloseIv.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                dismiss();
+            }
+        });
+
+        ClickUtils.applyPressedBgDark(bcfAdjustIv, 0.8f);
+        bcfAdjustIv.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                FloatToast.showLong(FloatToast.WARNING, StringUtils.getString(R.string.du_adjust_tips));
+            }
+        });
+        TouchUtils.setOnTouchListener(bcfAdjustIv, new TouchUtils.OnTouchUtilsListener() {
+
+            private int minHeight;
+
+            @Override
+            public boolean onDown(View view, int x, int y, MotionEvent event) {
+                int[] locations = new int[2];
+                getLocationOnScreen(locations);
+                mLayoutParams.height = WindowHelper.getAppWindowHeight() - locations[1];
+                WindowHelper.updateViewLayout(BaseContentFloatView.this, mLayoutParams);
+
+                minHeight = bcfTitleRl.getHeight() + SizeUtils.dp2px(30);
+                return true;
+            }
+
+            @Override
+            public boolean onMove(View view, int direction, int x, int y, int dx, final int dy, int totalX, int totalY, MotionEvent event) {
+                ViewGroup.LayoutParams layoutParams = bcfRootLayout.getLayoutParams();
+                layoutParams.height = Math.min(Math.max(bcfRootLayout.getHeight() + dy, minHeight), mLayoutParams.height);
+                bcfRootLayout.setLayoutParams(layoutParams);
+                return true;
+            }
+
+            @Override
+            public boolean onStop(View view, int direction, int x, int y, int totalX, int totalY, int vx, int vy, MotionEvent event) {
+                mLayoutParams.height = bcfRootLayout.getHeight();
+                WindowHelper.updateViewLayout(BaseContentFloatView.this, mLayoutParams);
+                DebugConfig.saveViewHeight(BaseContentFloatView.this, mLayoutParams.height);
+                return true;
+            }
+        });
+    }
+
+    private void initSwipePanel() {
+        swipePanel = findViewById(R.id.bcfSwipePanel);
+        swipePanel.setOnFullSwipeListener(new SwipePanel.OnFullSwipeListener() {
+            @Override
+            public void onFullSwipe(int direction) {
+                if (direction == SwipePanel.LEFT) {
+                    swipePanel.close(direction);
+                    back();
+                } else if (direction == SwipePanel.TOP) {
+                    if (mRefreshListener != null) {
+                        startRotate();
+                        mRefreshListener.onRefresh(BaseContentFloatView.this);
+                    }
+                }
+            }
+        });
+
+        swipePanel.setOnProgressChangedListener(new SwipePanel.OnProgressChangedListener() {
+            @Override
+            public void onProgressChanged(int direction, float progress, boolean isTouch) {
+                if (direction == SwipePanel.TOP) {
+                    Drawable topDrawable = swipePanel.getTopDrawable();
+                    if (isTouch) {
+                        topDrawable.setLevel((int) (progress * 20000));
+                    } else {
+                        if (progress < 0.5) {
+                            stopRotate();
+                        }
+                    }
+                }
+            }
+        });
+    }
+
+    private void startRotate() {
+        swipePanel.postDelayed(mRotateRunnable, ROTATE_DELAY);
+    }
+
+    private void stopRotate() {
+        swipePanel.removeCallbacks(mRotateRunnable);
+    }
+
+    @Override
+    protected void onCreateLayoutParams() {
+        super.onCreateLayoutParams();
+        mLayoutParams.gravity = Gravity.TOP;
+        mLayoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
+        mLayoutParams.height = DebugConfig.getViewHeight(BaseContentFloatView.this, WindowManager.LayoutParams.WRAP_CONTENT);
+        mLayoutParams.windowAnimations = R.style.FloatAnimation;
+        mLayoutParams.alpha = DebugConfig.getViewAlpha(this);
+        mLayoutParams.y = DebugConfig.getViewY(this);
+        post(new Runnable() {
+            @Override
+            public void run() {
+                if (getParent() != null) {
+                    wrapWindow();
+                }
+            }
+        });
+    }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        wrapWindow();
+    }
+
+    private void wrapWindow() {
+        int[] locations = new int[2];
+        getLocationOnScreen(locations);
+        int floatViewHeight = DebugConfig.getViewHeight(BaseContentFloatView.this, bcfRootLayout.getHeight());
+        if (locations[1] + floatViewHeight > WindowHelper.getAppWindowHeight()) {
+            floatViewHeight = WindowHelper.getAppWindowHeight() - locations[1];
+        }
+        mLayoutParams.height = floatViewHeight;
+
+        WindowHelper.updateViewLayout(BaseContentFloatView.this, mLayoutParams);
+
+        ViewGroup.LayoutParams layoutParams = bcfRootLayout.getLayoutParams();
+        layoutParams.height = mLayoutParams.height;
+        bcfRootLayout.setLayoutParams(layoutParams);
+    }
+}
\ No newline at end of file
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseContentView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseContentView.java
new file mode 100644
index 0000000000..42b3076965
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseContentView.java
@@ -0,0 +1,86 @@
+package com.blankj.utildebug.base.view;
+
+import android.widget.FrameLayout;
+
+import com.blankj.utildebug.DebugUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.listener.OnBackListener;
+import com.blankj.utildebug.base.view.listener.OnRefreshListener;
+
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/01
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseContentView<T extends BaseContentFloatView<T>> extends FrameLayout
+        implements OnBackListener {
+
+    private T       mFloatView;
+    private boolean isAddStack;
+
+    private OnRefreshListener mRefreshRunnable;
+    private boolean           mRefreshEnabled;
+
+    public BaseContentView() {
+        super(DebugUtils.getApp());
+        setId(R.id.baseContentView);
+        inflate(getContext(), bindLayout(), this);
+    }
+
+    public void attach(T floatView, boolean isAddStack) {
+        this.mFloatView = floatView;
+        this.isAddStack = isAddStack;
+        floatView.replace(this, isAddStack);
+    }
+
+    @LayoutRes
+    public abstract int bindLayout();
+
+    public abstract void onAttach();
+
+    public T getFloatView() {
+        return mFloatView;
+    }
+
+    public boolean isAddStack() {
+        return isAddStack;
+    }
+
+    public void setOnRefreshListener(RecyclerView rv, OnRefreshListener listener) {
+        mRefreshRunnable = listener;
+        mFloatView.setOnRefreshListener(listener);
+        attachRefresh(rv);
+    }
+
+    @Override
+    public void onBack() {
+    }
+
+    OnRefreshListener getOnRefreshListener() {
+        return mRefreshRunnable;
+    }
+
+    boolean isRefreshEnabled() {
+        return mRefreshEnabled;
+    }
+
+    private void attachRefresh(RecyclerView rv) {
+        rv.addOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
+                super.onScrollStateChanged(recyclerView, newState);
+                mRefreshEnabled = newState == RecyclerView.SCROLL_STATE_IDLE && !recyclerView.canScrollVertically(-1);
+                mFloatView.setRefreshEnabled(mRefreshEnabled);
+            }
+        });
+        mRefreshEnabled = !rv.canScrollVertically(-1);
+        mFloatView.setRefreshEnabled(mRefreshEnabled);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseFloatView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseFloatView.java
new file mode 100644
index 0000000000..668b5fc17b
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/BaseFloatView.java
@@ -0,0 +1,119 @@
+package com.blankj.utildebug.base.view;
+
+import android.app.Activity;
+import android.graphics.PixelFormat;
+import android.os.Build;
+import android.view.KeyEvent;
+import android.view.WindowManager;
+import android.widget.RelativeLayout;
+
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.Utils;
+import com.blankj.utildebug.DebugUtils;
+import com.blankj.utildebug.R;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.LayoutRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/10
+ *     desc  :
+ * </pre>
+ */
+public abstract class BaseFloatView extends RelativeLayout
+        implements Utils.OnAppStatusChangedListener {
+
+    private boolean isCreated;
+
+    protected WindowManager.LayoutParams mLayoutParams = new WindowManager.LayoutParams();
+
+    @LayoutRes
+    public abstract int bindLayout();
+
+    public abstract void initContentView();
+
+    public BaseFloatView() {
+        super(DebugUtils.getApp());
+        setId(R.id.baseFloatView);
+        if (bindLayout() != NO_ID) {
+            inflate(getContext(), bindLayout(), this);
+        }
+        onCreateLayoutParams();
+    }
+
+    void createFloatView() {
+        if (isCreated) return;
+        isCreated = true;
+        initContentView();
+    }
+
+    @CallSuper
+    protected void onCreateLayoutParams() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            mLayoutParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
+        } else {
+            mLayoutParams.type = WindowManager.LayoutParams.TYPE_PHONE;
+        }
+        mLayoutParams.format = PixelFormat.TRANSPARENT;
+        mLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
+        try {
+            int currentFlags = (Integer) mLayoutParams.getClass().getField("privateFlags").get(mLayoutParams);
+            mLayoutParams.getClass().getField("privateFlags").set(mLayoutParams, currentFlags | 0x00000040);
+        } catch (Exception ignore) {
+        }
+    }
+
+    public void show() {
+        FloatViewManager.getInstance().show(this);
+    }
+
+    public void dismiss() {
+        FloatViewManager.getInstance().dismiss(this);
+    }
+
+    @Override
+    public WindowManager.LayoutParams getLayoutParams() {
+        return mLayoutParams;
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        AppUtils.registerAppStatusChangedListener(this);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        AppUtils.unregisterAppStatusChangedListener(this);
+        super.onDetachedFromWindow();
+    }
+
+    @Override
+    public void onForeground(Activity activity) {
+        setVisibility(VISIBLE);
+    }
+
+    @Override
+    public void onBackground(Activity activity) {
+        setVisibility(GONE);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // When flag with FLAG_NOT_TOUCH_MODAL, should process the key event.
+    ///////////////////////////////////////////////////////////////////////////
+
+    @Override
+    public boolean dispatchKeyEvent(KeyEvent event) {
+        Activity topActivity = ActivityUtils.getTopActivity();
+        if (topActivity != null) {
+            if (topActivity.getWindow().getDecorView().dispatchKeyEvent(event)) {
+                return true;
+            }
+        }
+        return super.dispatchKeyEvent(event);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/EmptyGoneTextView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/EmptyGoneTextView.java
new file mode 100644
index 0000000000..cedd21b376
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/EmptyGoneTextView.java
@@ -0,0 +1,41 @@
+package com.blankj.utildebug.base.view;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.StringUtils;
+
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/03
+ *     desc  :
+ * </pre>
+ */
+@SuppressLint("AppCompatCustomView")
+public class EmptyGoneTextView extends TextView {
+
+    public EmptyGoneTextView(Context context) {
+        this(context, null);
+    }
+
+    public EmptyGoneTextView(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        setVisibility(GONE);
+    }
+
+    @Override
+    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
+        super.onTextChanged(text, start, lengthBefore, lengthAfter);
+        if (StringUtils.isEmpty(text)) {
+            setVisibility(GONE);
+        } else {
+            setVisibility(VISIBLE);
+        }
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatEditText.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatEditText.java
new file mode 100644
index 0000000000..9bb78cefd5
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatEditText.java
@@ -0,0 +1,73 @@
+package com.blankj.utildebug.base.view;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.EditText;
+
+import com.blankj.utilcode.util.KeyboardUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.helper.WindowHelper;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/10
+ *     desc  :
+ * </pre>
+ */
+@SuppressLint("AppCompatCustomView")
+public class FloatEditText extends EditText {
+
+    public FloatEditText(Context context) {
+        super(context);
+        init();
+    }
+
+    public FloatEditText(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public FloatEditText(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    private void init() {
+        setBackgroundResource(R.drawable.du_sel_et_bg);
+        post(new Runnable() {
+            @Override
+            public void run() {
+                View rootView = getRootView();
+                if (rootView instanceof BaseContentFloatView) {
+                    bindFloatView((BaseContentFloatView) rootView);
+                }
+            }
+        });
+    }
+
+    public void bindFloatView(final BaseContentFloatView floatView) {
+        setOnFocusChangeListener(new OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View v, boolean hasFocus) {
+                WindowManager.LayoutParams params = floatView.getLayoutParams();
+                if ((params.flags & WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE) == WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE) {
+                    params.flags = params.flags & ~WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
+                    params.flags |= WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
+                    WindowHelper.updateViewLayout(floatView, params);
+                    KeyboardUtils.showSoftInput(v);
+                }
+            }
+        });
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        KeyboardUtils.hideSoftInput(this);
+        super.onDetachedFromWindow();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatToast.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatToast.java
new file mode 100644
index 0000000000..b1da68450a
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatToast.java
@@ -0,0 +1,135 @@
+package com.blankj.utildebug.base.view;
+
+import android.annotation.SuppressLint;
+import android.view.Gravity;
+import android.view.WindowManager;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.SizeUtils;
+import com.blankj.utildebug.R;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import androidx.annotation.IntDef;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/10
+ *     desc  :
+ * </pre>
+ */
+public class FloatToast extends BaseFloatView {
+
+    public static final int SUCCESS = 0;
+    public static final int WARNING = 1;
+    public static final int ERROR   = 2;
+
+    @IntDef({SUCCESS, WARNING, ERROR})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Type {
+    }
+
+    private static final FloatToast INSTANCE = new FloatToast();
+
+    private static final Runnable DISMISS_RUNNABLE = new Runnable() {
+        @Override
+        public void run() {
+            INSTANCE.dismiss();
+        }
+    };
+
+    @Type
+    private int    mType;
+    private String mMsg;
+
+    private ImageView toastIconIv;
+    private TextView  toastMsgTv;
+
+    private FloatToast() {
+    }
+
+    @Override
+    public int bindLayout() {
+        return R.layout.du_float_toast;
+    }
+
+    @Override
+    public void initContentView() {
+        toastIconIv = findViewById(R.id.toastIconIv);
+        toastMsgTv = findViewById(R.id.toastMsgTv);
+    }
+
+    @Override
+    protected void onCreateLayoutParams() {
+        super.onCreateLayoutParams();
+
+        mLayoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
+        mLayoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
+        mLayoutParams.windowAnimations = android.R.style.Animation_Toast;
+        mLayoutParams.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
+                | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
+        mLayoutParams.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
+        mLayoutParams.y = SizeUtils.dp2px(64);
+    }
+
+    @Override
+    public void show() {
+        super.show();
+        if (mType < 0 || mType > 2) {
+            toastIconIv.setVisibility(GONE);
+        } else {
+            toastIconIv.setVisibility(VISIBLE);
+            if (mType == SUCCESS) {
+                toastIconIv.setImageResource(R.drawable.du_ic_toast_success);
+            } else if (mType == WARNING) {
+                toastIconIv.setImageResource(R.drawable.du_ic_toast_warn);
+            } else {
+                toastIconIv.setImageResource(R.drawable.du_ic_toast_error);
+            }
+        }
+        toastMsgTv.setText(mMsg);
+    }
+
+    private void setType(int type) {
+        mType = type;
+    }
+
+    private void setMsg(String msg) {
+        mMsg = msg == null ? "" : msg;
+    }
+
+    public static void showShort(String msg) {
+        show(msg, 2000);
+    }
+
+    public static void showShort(@Type int type, String msg) {
+        show(type, msg, 2000);
+    }
+
+    public static void showLong(String msg) {
+        show(msg, 3500);
+    }
+
+    public static void showLong(@Type int type, String msg) {
+        show(type, msg, 3500);
+    }
+
+    @SuppressLint("WrongConstant")
+    public static void show(String msg, long millis) {
+        show(-1, msg, millis);
+    }
+
+    public static void show(@Type int type, String msg, long millis) {
+        INSTANCE.removeCallbacks(DISMISS_RUNNABLE);
+        INSTANCE.dismiss();
+        INSTANCE.setType(type);
+        INSTANCE.setMsg(msg);
+        INSTANCE.show();
+        INSTANCE.postDelayed(DISMISS_RUNNABLE, millis);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatViewManager.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatViewManager.java
new file mode 100644
index 0000000000..302daa7444
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/FloatViewManager.java
@@ -0,0 +1,57 @@
+package com.blankj.utildebug.base.view;
+
+import android.view.WindowManager;
+
+import com.blankj.utilcode.util.ThreadUtils;
+import com.blankj.utildebug.helper.WindowHelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/30
+ *     desc  :
+ * </pre>
+ */
+public class FloatViewManager {
+
+    private final WindowManager       mWM         = WindowHelper.getWindowManager();
+    private final List<BaseFloatView> mFloatViews = new ArrayList<>();
+
+    private FloatViewManager() {
+    }
+
+    public static FloatViewManager getInstance() {
+        return LazyHolder.INSTANCE;
+    }
+
+    private static final class LazyHolder {
+        private static final FloatViewManager INSTANCE = new FloatViewManager();
+    }
+
+    public void show(final BaseFloatView view) {
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (mFloatViews.contains(view)) return;
+                view.createFloatView();
+                mWM.addView(view, view.getLayoutParams());
+                mFloatViews.add(view);
+            }
+        });
+    }
+
+    public void dismiss(final BaseFloatView view) {
+        ThreadUtils.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (!mFloatViews.contains(view)) return;
+                mWM.removeView(view);
+                mFloatViews.remove(view);
+            }
+        });
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/SearchEditText.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/SearchEditText.java
new file mode 100644
index 0000000000..d79a798ca4
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/SearchEditText.java
@@ -0,0 +1,75 @@
+package com.blankj.utildebug.base.view;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import com.blankj.utilcode.util.KeyboardUtils;
+import com.blankj.utilcode.util.StringUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/06
+ *     desc  :
+ * </pre>
+ */
+public class SearchEditText extends FloatEditText {
+
+    private static final long LIMIT = 200;
+
+    private OnTextChangedListener mListener;
+    private String                mStartSearchText = "";// 记录开始输入前的文本内容
+    private Runnable              mAction          = new Runnable() {
+        @Override
+        public void run() {
+            if (mListener != null) {
+                // 判断最终和开始前是否一致
+                if (!StringUtils.equals(mStartSearchText, getText().toString())) {
+                    mStartSearchText = getText().toString();// 更新 mStartSearchText
+                    mListener.onTextChanged(mStartSearchText);
+                }
+            }
+        }
+    };
+
+    public SearchEditText(Context context) {
+        this(context, null);
+    }
+
+    public SearchEditText(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    /**
+     * 在 LIMIT 时间内连续输入不触发文本变化
+     */
+    public void setOnTextChangedListener(OnTextChangedListener listener) {
+        mListener = listener;
+    }
+
+    public void reset() {
+        mStartSearchText = "";
+        setText("");
+        KeyboardUtils.hideSoftInput(this);
+    }
+
+    @Override
+    protected void onTextChanged(final CharSequence text, int start, int lengthBefore, int lengthAfter) {
+        super.onTextChanged(text, start, lengthBefore, lengthAfter);
+        // 移除上一次的回调
+        removeCallbacks(mAction);
+        postDelayed(mAction, LIMIT);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        removeCallbacks(mAction);
+        KeyboardUtils.hideSoftInput(this);
+        super.onDetachedFromWindow();
+    }
+
+    public interface OnTextChangedListener {
+        void onTextChanged(String text);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/SwipeRightMenu.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/SwipeRightMenu.java
new file mode 100644
index 0000000000..55718935bf
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/SwipeRightMenu.java
@@ -0,0 +1,347 @@
+package com.blankj.utildebug.base.view;
+
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.os.SystemClock;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import android.widget.LinearLayout;
+
+import com.blankj.utilcode.util.SizeUtils;
+
+import java.lang.ref.WeakReference;
+import java.util.ArrayList;
+import java.util.List;
+
+import androidx.annotation.Nullable;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/10
+ *     desc  :
+ * </pre>
+ */
+public class SwipeRightMenu extends LinearLayout {
+
+    private static final AccelerateInterpolator OPEN_INTERPOLATOR  = new AccelerateInterpolator(0.5f);
+    private static final DecelerateInterpolator CLOSE_INTERPOLATOR = new DecelerateInterpolator(0.5f);
+
+    private static boolean                       isTouching;
+    private static WeakReference<SwipeRightMenu> swipeMenuOpened;
+
+    private View mContentView;
+
+    private List<MenuBean> mMenus = new ArrayList<>();
+
+    private int mMenusWidth = 0;
+
+    public SwipeRightMenu(Context context) {
+        this(context, null);
+    }
+
+    public SwipeRightMenu(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        setOrientation(HORIZONTAL);
+        post(new Runnable() {
+            @Override
+            public void run() {
+                initView();
+            }
+        });
+    }
+
+    private void initView() {
+        int childCount = getChildCount();
+        if (childCount <= 1) {
+            throw new IllegalArgumentException("no menus");
+        }
+        mContentView = getChildAt(0);
+
+        for (int i = 1; i < childCount; i++) {
+            MenuBean bean = new MenuBean(getChildAt(i));
+            mMenus.add(bean);
+            if (i == 1) {
+                bean.setCloseMargin(0);
+            } else {
+                bean.setCloseMargin(-mMenus.get(i - 2).getWidth());
+            }
+            mMenusWidth += bean.getWidth();
+        }
+        for (int i = 0; i < mMenus.size(); i++) {
+            mMenus.get(i).setOpenMargin(0);
+        }
+    }
+
+    private static final int STATE_DOWN = 0;
+    private static final int STATE_MOVE = 1;
+    private static final int STATE_STOP = 2;
+
+    private static final int SLIDE_INIT       = 0;
+    private static final int SLIDE_HORIZONTAL = 1;
+    private static final int SLIDE_VERTICAL   = 2;
+
+    private static final int MIN_DISTANCE_MOVE  = SizeUtils.dp2px(4);
+    private static final int THRESHOLD_DISTANCE = SizeUtils.dp2px(20);
+    private static final int ANIM_TIMING        = 350;
+
+    private int mState;
+    private int mDownX;
+    private int mDownY;
+    private int mLastX;
+    private int mLastY;
+    private int slideDirection;
+
+    private boolean isTouchPointInView(View view, int x, int y) {
+        if (view == null) {
+            return false;
+        }
+        int[] location = new int[2];
+        view.getLocationOnScreen(location);
+        int left = location[0];
+        int top = location[1];
+        int right = left + view.getMeasuredWidth();
+        int bottom = top + view.getMeasuredHeight();
+        return y >= top && y <= bottom && x >= left && x <= right;
+    }
+
+    public boolean isOpen() {
+        return swipeMenuOpened != null;
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent event) {
+        int x = (int) event.getRawX();
+        int y = (int) event.getRawY();
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+                if (isTouching) {
+                    return false;
+                }
+                isTouching = true;
+                close(this);
+                mDownX = x;
+                mDownY = y;
+                mLastX = x;
+                mLastY = y;
+                mState = STATE_DOWN;
+                slideDirection = SLIDE_INIT;
+                super.dispatchTouchEvent(event);
+                break;
+            case MotionEvent.ACTION_MOVE:
+                if (mState == STATE_DOWN
+                        && Math.abs(x - mDownX) < MIN_DISTANCE_MOVE
+                        && Math.abs(y - mDownY) < MIN_DISTANCE_MOVE) {
+                    break;
+                }
+                if (slideDirection == SLIDE_INIT) {
+                    if (Math.abs(x - mDownX) > Math.abs(y - mDownY)) {
+                        slideDirection = SLIDE_HORIZONTAL;
+                        cancelChildViewTouch();
+                        requestDisallowInterceptTouchEvent(true);// 让父 view 不要拦截
+                    } else {
+                        slideDirection = SLIDE_VERTICAL;
+                    }
+                }
+                if (slideDirection == SLIDE_VERTICAL) {
+                    return super.dispatchTouchEvent(event);
+                }
+
+                scrollTo(Math.max(Math.min(getScrollX() - x + mLastX, mMenusWidth), 0), 0);
+
+                float percent = getScrollX() / (float) mMenusWidth;
+                updateLeftMarginByPercent(percent);
+
+                mLastX = x;
+                mLastY = y;
+                mState = STATE_MOVE;
+                break;
+            case MotionEvent.ACTION_UP:
+            case MotionEvent.ACTION_CANCEL:
+                try {
+                    if (event.getAction() == MotionEvent.ACTION_UP) {
+                        if (mState == STATE_DOWN) {
+                            if (isOpen()) {
+                                if (isTouchPointInView(mContentView, x, y)) {
+                                    close(true);
+                                    final long now = SystemClock.elapsedRealtime();
+                                    final MotionEvent cancelEvent = MotionEvent.obtain(now, now,
+                                            MotionEvent.ACTION_CANCEL, 0.0f, 0.0f, 0);
+                                    super.dispatchTouchEvent(cancelEvent);
+                                    return true;
+                                }
+                            }
+                            super.dispatchTouchEvent(event);
+                            close(true);
+                            return true;
+                        }
+                    } else {
+                        super.dispatchTouchEvent(event);
+                    }
+                    if (swipeMenuOpened != null && swipeMenuOpened.get() == this) {// 如果之前是展开状态
+                        if (getScrollX() < mMenusWidth - THRESHOLD_DISTANCE) {// 超过阈值则关闭
+                            close(true);
+                        } else {// 否则还是打开
+                            open(true);
+                        }
+                    } else {
+                        if (getScrollX() > THRESHOLD_DISTANCE) {// 如果是关闭
+                            open(true);// 超过阈值则打开
+                        } else {
+                            close(true);// 否则还是关闭
+                        }
+                    }
+                } finally {
+                    isTouching = false;
+                    mState = STATE_STOP;
+                }
+                break;
+            default:
+                break;
+        }
+        return true;
+    }
+
+    private void updateLeftMarginByPercent(float percent) {
+        for (MenuBean menu : mMenus) {
+            menu.getParams().leftMargin = (int) (menu.getCloseMargin() + percent * (menu.getOpenMargin() - menu.getCloseMargin()));
+            menu.getView().requestLayout();
+        }
+    }
+
+    private void close(boolean isAnim) {
+        swipeMenuOpened = null;
+        if (isAnim) {
+            ValueAnimator anim = ValueAnimator.ofInt(getScrollX(), 0);
+            anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                @Override
+                public void onAnimationUpdate(ValueAnimator animation) {
+                    scrollTo((int) animation.getAnimatedValue(), 0);
+                }
+            });
+            anim.setInterpolator(CLOSE_INTERPOLATOR);
+            anim.setDuration(ANIM_TIMING).start();
+
+            for (final MenuBean menu : mMenus) {
+                ValueAnimator menuAnim = ValueAnimator.ofInt(menu.getParams().leftMargin, menu.getCloseMargin());
+                menuAnim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                    @Override
+                    public void onAnimationUpdate(ValueAnimator animation) {
+                        menu.getParams().leftMargin = (int) animation.getAnimatedValue();
+                        menu.getView().requestLayout();
+                    }
+                });
+                menuAnim.setInterpolator(CLOSE_INTERPOLATOR);
+                menuAnim.setDuration(ANIM_TIMING).start();
+            }
+        } else {
+            scrollTo(0, 0);
+
+            for (final MenuBean menu : mMenus) {
+                menu.getParams().leftMargin = menu.getCloseMargin();
+                menu.getView().requestLayout();
+            }
+        }
+    }
+
+    private void open(boolean isAnim) {
+        swipeMenuOpened = new WeakReference<>(this);
+        if (isAnim) {
+            ValueAnimator anim = ValueAnimator.ofInt(getScrollX(), mMenusWidth);
+            anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                @Override
+                public void onAnimationUpdate(ValueAnimator animation) {
+                    scrollTo((int) animation.getAnimatedValue(), 0);
+                }
+            });
+            anim.setInterpolator(OPEN_INTERPOLATOR);
+            anim.setDuration(ANIM_TIMING).start();
+
+            for (final MenuBean menu : mMenus) {
+                ValueAnimator menuAnim = ValueAnimator.ofInt(menu.getParams().leftMargin, menu.getOpenMargin());
+                menuAnim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                    @Override
+                    public void onAnimationUpdate(ValueAnimator animation) {
+                        menu.getParams().leftMargin = (int) animation.getAnimatedValue();
+                        menu.getView().requestLayout();
+                    }
+                });
+                menuAnim.setInterpolator(OPEN_INTERPOLATOR);
+                menuAnim.setDuration(ANIM_TIMING).start();
+            }
+        } else {
+            scrollTo(mMenusWidth, 0);
+
+            for (final MenuBean menu : mMenus) {
+                menu.getParams().leftMargin = menu.getOpenMargin();
+                menu.getView().requestLayout();
+            }
+        }
+    }
+
+    public void close(SwipeRightMenu exclude) {
+        if (swipeMenuOpened != null) {
+            final SwipeRightMenu swipeMenu = swipeMenuOpened.get();
+            if (swipeMenu != exclude) {
+                swipeMenu.close(true);
+            }
+        }
+    }
+
+    private void cancelChildViewTouch() {
+        final long now = SystemClock.elapsedRealtime();
+        final MotionEvent cancelEvent = MotionEvent.obtain(now, now,
+                MotionEvent.ACTION_CANCEL, 0.0f, 0.0f, 0);
+        final int childCount = getChildCount();
+        for (int i = 0; i < childCount; i++) {
+            getChildAt(i).dispatchTouchEvent(cancelEvent);
+        }
+        cancelEvent.recycle();
+    }
+
+    private static class MenuBean {
+        private View                      mView;
+        private LinearLayout.LayoutParams mParams;
+        private int                       mWidth;
+        private int                       mCloseMargin;
+        private int                       mOpenMargin;
+
+        public MenuBean(View view) {
+            mView = view;
+            mParams = (LayoutParams) view.getLayoutParams();
+            mWidth = view.getWidth();
+        }
+
+        public View getView() {
+            return mView;
+        }
+
+        public LayoutParams getParams() {
+            return mParams;
+        }
+
+        public int getWidth() {
+            return mWidth;
+        }
+
+        public int getCloseMargin() {
+            return mCloseMargin;
+        }
+
+        public int getOpenMargin() {
+            return mOpenMargin;
+        }
+
+        public void setCloseMargin(int closeMargin) {
+            mCloseMargin = closeMargin;
+        }
+
+        public void setOpenMargin(int openMargin) {
+            mOpenMargin = openMargin;
+        }
+    }
+}
\ No newline at end of file
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/listener/OnBackListener.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/listener/OnBackListener.java
new file mode 100644
index 0000000000..df330ea83f
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/listener/OnBackListener.java
@@ -0,0 +1,13 @@
+package com.blankj.utildebug.base.view.listener;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/20
+ *     desc  :
+ * </pre>
+ */
+public interface OnBackListener {
+    void onBack();
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/listener/OnRefreshListener.java b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/listener/OnRefreshListener.java
new file mode 100644
index 0000000000..0a8a66bac2
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/base/view/listener/OnRefreshListener.java
@@ -0,0 +1,15 @@
+package com.blankj.utildebug.base.view.listener;
+
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/20
+ *     desc  :
+ * </pre>
+ */
+public interface OnRefreshListener {
+    void onRefresh(BaseContentFloatView floatView);
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/config/DebugConfig.java b/lib/utildebug/src/main/java/com/blankj/utildebug/config/DebugConfig.java
new file mode 100644
index 0000000000..6d15b4fc3b
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/config/DebugConfig.java
@@ -0,0 +1,109 @@
+package com.blankj.utildebug.config;
+
+import android.view.View;
+
+import com.blankj.utilcode.util.SPUtils;
+import com.blankj.utilcode.util.ScreenUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class DebugConfig {
+
+    private static final String DEBUG_ICON_X     = "DEBUG_ICON_X";
+    private static final String DEBUG_ICON_Y     = "DEBUG_ICON_Y";
+    private static final String NO_MORE_REMINDER = "NO_MORE_REMINDER";
+
+    public static void saveDebugIconX(float x) {
+        getSp().put(DEBUG_ICON_X, x);
+    }
+
+    public static float getDebugIconX() {
+        return getSp().getFloat(DEBUG_ICON_X);
+    }
+
+    public static void saveDebugIconY(float y) {
+        getSp().put(DEBUG_ICON_Y, y);
+    }
+
+    public static float getDebugIconY() {
+        return getSp().getFloat(DEBUG_ICON_Y, ScreenUtils.getAppScreenHeight() / 3);
+    }
+
+    public static void saveNoMoreReminder() {
+        getSp().put(NO_MORE_REMINDER, true);
+    }
+
+    public static boolean isNoMoreReminder() {
+        return getSp().getBoolean(NO_MORE_REMINDER, false);
+    }
+
+    public static void saveViewY(View view, int y) {
+        if (ScreenUtils.isPortrait()) {
+            getSp().put(view.getClass().getSimpleName() + ".yP", y);
+        } else {
+            getSp().put(view.getClass().getSimpleName() + ".yL", y);
+        }
+    }
+
+    public static int getViewY(View view) {
+        return getViewY(view, 0);
+    }
+
+    public static int getViewY(View view, int defaultVal) {
+        if (ScreenUtils.isPortrait()) {
+            return getSp().getInt(view.getClass().getSimpleName() + ".yP", defaultVal);
+        } else {
+            return getSp().getInt(view.getClass().getSimpleName() + ".yL", defaultVal);
+        }
+    }
+
+    public static void saveViewX(View view, int x) {
+        if (ScreenUtils.isPortrait()) {
+            getSp().put(view.getClass().getSimpleName() + ".xP", x);
+        } else {
+            getSp().put(view.getClass().getSimpleName() + ".xL", x);
+        }
+    }
+
+    public static int getViewX(View view) {
+        if (ScreenUtils.isPortrait()) {
+            return getSp().getInt(view.getClass().getSimpleName() + ".xP");
+        } else {
+            return getSp().getInt(view.getClass().getSimpleName() + ".xL");
+        }
+    }
+
+    public static void saveViewHeight(View view, int height) {
+        if (ScreenUtils.isPortrait()) {
+            getSp().put(view.getClass().getSimpleName() + ".heightP", height);
+        } else {
+            getSp().put(view.getClass().getSimpleName() + ".heightL", height);
+        }
+    }
+
+    public static int getViewHeight(View view, int height) {
+        if (ScreenUtils.isPortrait()) {
+            return getSp().getInt(view.getClass().getSimpleName() + ".heightP", height);
+        } else {
+            return getSp().getInt(view.getClass().getSimpleName() + ".heightL", height);
+        }
+    }
+
+    public static void saveViewAlpha(View view, float alpha) {
+        getSp().put(view.getClass().getSimpleName() + ".alpha", alpha);
+    }
+
+    public static float getViewAlpha(View view) {
+        return getSp().getFloat(view.getClass().getSimpleName() + ".alpha", 1f);
+    }
+
+    private static SPUtils getSp() {
+        return SPUtils.getInstance("DebugUtils");
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/IDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/IDebug.java
new file mode 100644
index 0000000000..0e73558bec
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/IDebug.java
@@ -0,0 +1,45 @@
+package com.blankj.utildebug.debug;
+
+import android.content.Context;
+import android.view.View;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import androidx.annotation.DrawableRes;
+import androidx.annotation.IntDef;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/28
+ *     desc  :
+ * </pre>
+ */
+public interface IDebug {
+
+    void onAppCreate(Context context);
+
+    @Category
+    int getCategory();
+
+    @DrawableRes
+    int getIcon();
+
+    @StringRes
+    int getName();
+
+    void onClick(View view);
+
+    int TOOLS       = 0;
+    int PERFORMANCE = 1;
+    int UI          = 2;
+    int BIZ         = 3;
+
+    @IntDef({TOOLS, PERFORMANCE, UI, BIZ})
+    @Retention(RetentionPolicy.SOURCE)
+    @interface Category {
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/AbsToolDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/AbsToolDebug.java
new file mode 100644
index 0000000000..6c949effa6
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/AbsToolDebug.java
@@ -0,0 +1,38 @@
+package com.blankj.utildebug.debug.tool;
+
+import com.blankj.utildebug.debug.IDebug;
+import com.blankj.utildebug.debug.tool.appInfo.AppInfoDebug;
+import com.blankj.utildebug.debug.tool.clearCache.ClearCacheDebug;
+import com.blankj.utildebug.debug.tool.clearStorage.ClearStorageDebug;
+import com.blankj.utildebug.debug.tool.deviceInfo.DeviceInfoDebug;
+import com.blankj.utildebug.debug.tool.fileExplorer.FileExplorerDebug;
+import com.blankj.utildebug.debug.tool.logcat.LogcatDebug;
+import com.blankj.utildebug.debug.tool.restartApp.RestartAppDebug;
+
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public abstract class AbsToolDebug implements IDebug {
+
+    @Override
+    public int getCategory() {
+        return TOOLS;
+    }
+
+    public static void addToolDebugs(List<IDebug> debugList) {
+        debugList.add(new AppInfoDebug());
+        debugList.add(new DeviceInfoDebug());
+        debugList.add(new FileExplorerDebug());
+        debugList.add(new LogcatDebug());
+        debugList.add(new RestartAppDebug());
+        debugList.add(new ClearStorageDebug());
+        debugList.add(new ClearCacheDebug());
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoDebug.java
new file mode 100644
index 0000000000..0ccc02a262
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoDebug.java
@@ -0,0 +1,43 @@
+package com.blankj.utildebug.debug.tool.appInfo;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+import com.blankj.utildebug.menu.DebugMenu;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class AppInfoDebug extends AbsToolDebug {
+
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        int appIconId = AppUtils.getAppIconId();
+        if (appIconId != 0) return appIconId;
+        return R.drawable.du_ic_debug_app_info_default;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_app_info;
+    }
+
+    @Override
+    public void onClick(View view) {
+        DebugMenu.getInstance().dismiss();
+        new AppInfoFloatView().show();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoFloatView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoFloatView.java
new file mode 100644
index 0000000000..7fb2e60c8a
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoFloatView.java
@@ -0,0 +1,42 @@
+package com.blankj.utildebug.debug.tool.appInfo;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItemAdapter;
+import com.blankj.utildebug.base.rv.RecycleViewDivider;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class AppInfoFloatView extends BaseContentFloatView<AppInfoFloatView> {
+
+    private RecyclerView appInfoRv;
+
+    @Override
+    public int bindTitle() {
+        return R.string.du_app_info;
+    }
+
+    @Override
+    public int bindContentLayout() {
+        return R.layout.du_debug_app_info;
+    }
+
+    @Override
+    public void initContentView() {
+        appInfoRv = findViewById(R.id.appInfoRv);
+        BaseItemAdapter<AppInfoItem> adapter = new BaseItemAdapter<>();
+        adapter.setItems(AppInfoItem.getAppInfoItems());
+        appInfoRv.setAdapter(adapter);
+        appInfoRv.setLayoutManager(new LinearLayoutManager(getContext()));
+        appInfoRv.addItemDecoration(new RecycleViewDivider(getContext(), RecycleViewDivider.VERTICAL, R.drawable.du_shape_divider));
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoItem.java
new file mode 100644
index 0000000000..54895ee71f
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/appInfo/AppInfoItem.java
@@ -0,0 +1,84 @@
+package com.blankj.utildebug.debug.tool.appInfo;
+
+import android.os.Build;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItem;
+import com.blankj.utildebug.base.rv.ItemViewHolder;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class AppInfoItem extends BaseItem<AppInfoItem> {
+
+    private String mTitle;
+    private String mContent;
+    private OnClickListener mListener;
+
+    private TextView titleTv;
+    private TextView contentTv;
+
+    public AppInfoItem(@StringRes int name, String info) {
+        this(name, info, null);
+    }
+
+    public AppInfoItem(@StringRes int name, String info, OnClickListener listener) {
+        super(R.layout.du_item_base_info);
+        mTitle = StringUtils.getString(name);
+        mContent = info;
+        mListener = listener;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        titleTv = holder.findViewById(R.id.baseInfoTitleTv);
+        contentTv = holder.findViewById(R.id.baseInfoContentTv);
+
+        titleTv.setText(mTitle);
+        contentTv.setText(mContent);
+        if (mListener != null) {
+            ClickUtils.applyPressedBgDark(holder.itemView);
+            ClickUtils.applyGlobalDebouncing(holder.itemView, mListener);
+            holder.findViewById(R.id.baseInfoGoIv).setVisibility(View.VISIBLE);
+        } else {
+            holder.itemView.setOnTouchListener(null);
+            holder.itemView.setOnClickListener(null);
+            holder.findViewById(R.id.baseInfoGoIv).setVisibility(View.GONE);
+        }
+    }
+
+    public static List<AppInfoItem> getAppInfoItems() {
+        final List<AppInfoItem> appInfoItems = new ArrayList<>();
+        appInfoItems.add(new AppInfoItem(R.string.du_app_info_pkg_name, AppUtils.getAppPackageName()));
+        appInfoItems.add(new AppInfoItem(R.string.du_app_info_version_name, AppUtils.getAppVersionName()));
+        appInfoItems.add(new AppInfoItem(R.string.du_app_info_version_code, String.valueOf(AppUtils.getAppVersionCode())));
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            appInfoItems.add(new AppInfoItem(R.string.du_app_info_min_sdk_version, String.valueOf(AppUtils.getAppMinSdkVersion())));
+        }
+        appInfoItems.add(new AppInfoItem(R.string.du_app_info_target_sdk_version, String.valueOf(AppUtils.getAppTargetSdkVersion())));
+        appInfoItems.add(new AppInfoItem(R.string.du_app_info_open_app_info_page, "", new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                AppUtils.launchAppDetailsSettings();
+            }
+        }));
+        return appInfoItems;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/clearCache/ClearCacheDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/clearCache/ClearCacheDebug.java
new file mode 100644
index 0000000000..f2f50584c9
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/clearCache/ClearCacheDebug.java
@@ -0,0 +1,97 @@
+package com.blankj.utildebug.debug.tool.clearCache;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utilcode.util.ConvertUtils;
+import com.blankj.utilcode.util.FileUtils;
+import com.blankj.utilcode.util.LogUtils;
+import com.blankj.utilcode.util.PathUtils;
+import com.blankj.utilcode.util.ThreadUtils;
+import com.blankj.utilcode.util.ToastUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+import com.blankj.utildebug.menu.DebugMenu;
+
+import java.io.File;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public class ClearCacheDebug extends AbsToolDebug {
+
+    private ThreadUtils.SimpleTask<Long> clearCacheTask;
+
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        return R.drawable.du_ic_debug_clear_cache;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_clear_cache;
+    }
+
+    @Override
+    public void onClick(View view) {
+        clearCache();
+    }
+
+    private void clearCache() {
+        DebugMenu.getInstance().dismiss();
+        if (clearCacheTask != null && !clearCacheTask.isDone()) {
+            ToastUtils.showShort("Cleaning...");
+            return;
+        }
+        clearCacheTask = createClearCacheTask();
+        ThreadUtils.executeByIo(clearCacheTask);
+    }
+
+    private ThreadUtils.SimpleTask<Long> createClearCacheTask() {
+        return new ThreadUtils.SimpleTask<Long>() {
+            @Override
+            public Long doInBackground() throws Throwable {
+                try {
+                    long len = 0;
+                    File appDataDir = new File(PathUtils.getInternalAppDataPath());
+                    if (appDataDir.exists()) {
+                        String[] names = appDataDir.list();
+                        for (String name : names) {
+                            if (!name.equals("lib")) {
+                                File file = new File(appDataDir, name);
+                                len += FileUtils.getLength(file);
+                                FileUtils.delete(file);
+                                LogUtils.i("「" + file + "」 was deleted.");
+                            }
+                        }
+                    }
+                    String externalAppCachePath = PathUtils.getExternalAppCachePath();
+                    len += FileUtils.getLength(externalAppCachePath);
+                    FileUtils.delete(externalAppCachePath);
+                    LogUtils.i("「" + externalAppCachePath + "」 was deleted.");
+                    return len;
+                } catch (Exception e) {
+                    ToastUtils.showLong(e.toString());
+                    return -1L;
+                }
+            }
+
+            @Override
+            public void onSuccess(Long result) {
+                if (result != -1) {
+                    ToastUtils.showLong("Clear Cache: " + ConvertUtils.byte2FitMemorySize(result));
+                }
+            }
+        };
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/clearStorage/ClearStorageDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/clearStorage/ClearStorageDebug.java
new file mode 100644
index 0000000000..666cfcd0a5
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/clearStorage/ClearStorageDebug.java
@@ -0,0 +1,40 @@
+package com.blankj.utildebug.debug.tool.clearStorage;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utilcode.util.ShellUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public class ClearStorageDebug extends AbsToolDebug {
+
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        return R.drawable.du_ic_debug_clear_storage;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_clear_storage;
+    }
+
+    @Override
+    public void onClick(View view) {
+        ShellUtils.execCmd("pm clear " + AppUtils.getAppPackageName(), false);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoDebug.java
new file mode 100644
index 0000000000..7472dfcd23
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoDebug.java
@@ -0,0 +1,40 @@
+package com.blankj.utildebug.debug.tool.deviceInfo;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+import com.blankj.utildebug.menu.DebugMenu;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class DeviceInfoDebug extends AbsToolDebug {
+
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        return R.drawable.du_ic_debug_device_info;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_device_info;
+    }
+
+    @Override
+    public void onClick(View view) {
+        DebugMenu.getInstance().dismiss();
+        new DeviceInfoFloatView().show();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoFloatView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoFloatView.java
new file mode 100644
index 0000000000..4d25dd9383
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoFloatView.java
@@ -0,0 +1,52 @@
+package com.blankj.utildebug.debug.tool.deviceInfo;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItemAdapter;
+import com.blankj.utildebug.base.rv.RecycleViewDivider;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+import com.blankj.utildebug.base.view.listener.OnRefreshListener;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class DeviceInfoFloatView extends BaseContentFloatView<DeviceInfoFloatView> {
+
+    private RecyclerView deviceInfoRv;
+
+    @Override
+    public int bindTitle() {
+        return R.string.du_device_info;
+    }
+
+    @Override
+    public int bindContentLayout() {
+        return R.layout.du_debug_device_info;
+    }
+
+    @Override
+    public void initContentView() {
+        deviceInfoRv = findViewById(R.id.deviceInfoRv);
+        final BaseItemAdapter<DeviceInfoItem> adapter = new BaseItemAdapter<>();
+        adapter.setItems(DeviceInfoItem.getAppInfoItems());
+        deviceInfoRv.setAdapter(adapter);
+        deviceInfoRv.setLayoutManager(new LinearLayoutManager(getContext()));
+        deviceInfoRv.addItemDecoration(new RecycleViewDivider(getContext(), RecycleViewDivider.VERTICAL, R.drawable.du_shape_divider));
+
+        getContentView().setOnRefreshListener(deviceInfoRv, new OnRefreshListener() {
+            @Override
+            public void onRefresh(final BaseContentFloatView floatView) {
+                adapter.setItems(DeviceInfoItem.getAppInfoItems());
+                adapter.notifyDataSetChanged();
+                floatView.closeRefresh();
+            }
+        });
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoItem.java
new file mode 100644
index 0000000000..9c14c7702b
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/deviceInfo/DeviceInfoItem.java
@@ -0,0 +1,95 @@
+package com.blankj.utildebug.debug.tool.deviceInfo;
+
+import android.content.Intent;
+import android.os.Build;
+import android.provider.Settings;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.ArrayUtils;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.DeviceUtils;
+import com.blankj.utilcode.util.ScreenUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItem;
+import com.blankj.utildebug.base.rv.ItemViewHolder;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/02
+ *     desc  :
+ * </pre>
+ */
+public class DeviceInfoItem extends BaseItem<DeviceInfoItem> {
+
+    private String          mTitle;
+    private String          mContent;
+    private OnClickListener mListener;
+
+    private TextView titleTv;
+    private TextView contentTv;
+
+    public DeviceInfoItem(@StringRes int name, String info) {
+        this(name, info, null);
+    }
+
+    public DeviceInfoItem(@StringRes int name, String info, OnClickListener listener) {
+        super(R.layout.du_item_base_info);
+        mTitle = StringUtils.getString(name);
+        mContent = info;
+        mListener = listener;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        titleTv = holder.findViewById(R.id.baseInfoTitleTv);
+        contentTv = holder.findViewById(R.id.baseInfoContentTv);
+
+        titleTv.setText(mTitle);
+        contentTv.setText(mContent);
+        if (mListener != null) {
+            ClickUtils.applyPressedBgDark(holder.itemView);
+            ClickUtils.applyGlobalDebouncing(holder.itemView, mListener);
+            holder.findViewById(R.id.baseInfoGoIv).setVisibility(View.VISIBLE);
+        } else {
+            holder.itemView.setOnTouchListener(null);
+            holder.itemView.setOnClickListener(null);
+            holder.findViewById(R.id.baseInfoGoIv).setVisibility(View.GONE);
+        }
+    }
+
+    public static List<DeviceInfoItem> getAppInfoItems() {
+        List<DeviceInfoItem> appInfoItems = new ArrayList<>();
+        appInfoItems.add(new DeviceInfoItem(R.string.du_device_info_name, Build.MANUFACTURER + " " + Build.MODEL));
+        appInfoItems.add(new DeviceInfoItem(R.string.du_device_info_android_version, DeviceUtils.getSDKVersionName() + " (" + DeviceUtils.getSDKVersionCode() + ")"));
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            appInfoItems.add(new DeviceInfoItem(R.string.du_device_info_adb_enabled, String.valueOf(DeviceUtils.isAdbEnabled())));
+        }
+        appInfoItems.add(new DeviceInfoItem(R.string.du_device_info_support_abis, ArrayUtils.toString(DeviceUtils.getABIs())));
+        appInfoItems.add(new DeviceInfoItem(R.string.du_device_info_screen_info, getScreenInfo()));
+        appInfoItems.add(new DeviceInfoItem(R.string.du_device_info_open_development_settings_page, "", new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ActivityUtils.startActivity(new Intent(Settings.ACTION_APPLICATION_DEVELOPMENT_SETTINGS));
+            }
+        }));
+        return appInfoItems;
+    }
+
+    private static String getScreenInfo() {
+        return "width=" + ScreenUtils.getScreenWidth() +
+                ", height=" + ScreenUtils.getScreenHeight() +
+                ", density=" + ScreenUtils.getScreenDensity();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileContentView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileContentView.java
new file mode 100644
index 0000000000..a5b4351ac8
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileContentView.java
@@ -0,0 +1,93 @@
+package com.blankj.utildebug.debug.tool.fileExplorer;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItemAdapter;
+import com.blankj.utildebug.base.rv.RecycleViewDivider;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+import com.blankj.utildebug.base.view.BaseContentView;
+import com.blankj.utildebug.base.view.SearchEditText;
+import com.blankj.utildebug.base.view.listener.OnRefreshListener;
+
+import java.util.List;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/06
+ *     desc  :
+ * </pre>
+ */
+public class FileContentView extends BaseContentView<FileExplorerFloatView> {
+
+    private FileItem                  mParent;
+    private BaseItemAdapter<FileItem> mAdapter;
+    private List<FileItem>            mSrcItems;
+
+    private SearchEditText fileExplorerSearchEt;
+    private RecyclerView   fileExplorerRv;
+
+    public static void show(FileExplorerFloatView floatView) {
+        new FileContentView(null).attach(floatView, true);
+    }
+
+    public static void show(FileExplorerFloatView floatView, FileItem fileItem) {
+        new FileContentView(fileItem).attach(floatView, true);
+    }
+
+    public FileContentView(FileItem parent) {
+        mParent = parent;
+        mSrcItems = FileItem.getFileItems(mParent);
+    }
+
+    @Override
+    public int bindLayout() {
+        return R.layout.du_debug_file_explorer;
+    }
+
+    @Override
+    public void onAttach() {
+        fileExplorerSearchEt = findViewById(R.id.fileExplorerSearchEt);
+        fileExplorerRv = findViewById(R.id.fileExplorerRv);
+
+        if (FileItem.isEmptyItems(mSrcItems)) {
+            fileExplorerSearchEt.setVisibility(GONE);
+        }
+
+        mAdapter = new BaseItemAdapter<>();
+        mAdapter.setItems(mSrcItems);
+        fileExplorerRv.setAdapter(mAdapter);
+        fileExplorerRv.setLayoutManager(new LinearLayoutManager(getContext()));
+        fileExplorerRv.addItemDecoration(new RecycleViewDivider(getContext(), RecycleViewDivider.VERTICAL, R.drawable.du_shape_file_divider));
+
+        fileExplorerSearchEt.setOnTextChangedListener(new SearchEditText.OnTextChangedListener() {
+            @Override
+            public void onTextChanged(String text) {
+                mAdapter.setItems(FileItem.filterItems(mSrcItems, text));
+                mAdapter.notifyDataSetChanged();
+            }
+        });
+
+        setOnRefreshListener(fileExplorerRv, new OnRefreshListener() {
+            @Override
+            public void onRefresh(BaseContentFloatView floatView) {
+                mSrcItems = FileItem.getFileItems(mParent);
+                mAdapter.setItems(mSrcItems);
+                mAdapter.notifyDataSetChanged();
+                fileExplorerSearchEt.reset();
+                floatView.closeRefresh();
+            }
+        });
+    }
+
+    @Override
+    public void onBack() {
+        super.onBack();
+        if (mParent != null) {
+            mParent.update();
+        }
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileExplorerDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileExplorerDebug.java
new file mode 100644
index 0000000000..4dab3a5f75
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileExplorerDebug.java
@@ -0,0 +1,40 @@
+package com.blankj.utildebug.debug.tool.fileExplorer;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+import com.blankj.utildebug.menu.DebugMenu;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public class FileExplorerDebug extends AbsToolDebug {
+
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        return R.drawable.du_ic_debug_file_explorer;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_file_explorer;
+    }
+
+    @Override
+    public void onClick(View view) {
+        DebugMenu.getInstance().dismiss();
+        new FileExplorerFloatView().show();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileExplorerFloatView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileExplorerFloatView.java
new file mode 100644
index 0000000000..8829bebe2f
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileExplorerFloatView.java
@@ -0,0 +1,30 @@
+package com.blankj.utildebug.debug.tool.fileExplorer;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public class FileExplorerFloatView extends BaseContentFloatView<FileExplorerFloatView> {
+
+    @Override
+    public int bindTitle() {
+        return R.string.du_file_explorer;
+    }
+
+    @Override
+    public int bindContentLayout() {
+        return NO_ID;
+    }
+
+    @Override
+    public void initContentView() {
+        FileContentView.show(this);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileItem.java
new file mode 100644
index 0000000000..f5fac3ca8c
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/FileItem.java
@@ -0,0 +1,248 @@
+package com.blankj.utildebug.debug.tool.fileExplorer;
+
+import android.content.Intent;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.blankj.utilcode.constant.PermissionConstants;
+import com.blankj.utilcode.util.ActivityUtils;
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.CollectionUtils;
+import com.blankj.utilcode.util.FileUtils;
+import com.blankj.utilcode.util.PathUtils;
+import com.blankj.utilcode.util.PermissionUtils;
+import com.blankj.utilcode.util.SDCardUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utilcode.util.TimeUtils;
+import com.blankj.utilcode.util.UriUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItem;
+import com.blankj.utildebug.base.rv.ItemViewHolder;
+import com.blankj.utildebug.base.view.FloatToast;
+import com.blankj.utildebug.debug.tool.fileExplorer.image.ImageViewer;
+import com.blankj.utildebug.debug.tool.fileExplorer.sp.SpViewerContentView;
+import com.blankj.utildebug.helper.FileHelper;
+import com.blankj.utildebug.helper.ImageLoader;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/05
+ *     desc  :
+ * </pre>
+ */
+public class FileItem extends BaseItem<FileItem> {
+
+    private static final ArrayList<FileItem> EMPTY = CollectionUtils.newArrayList(new FileItem());
+
+    private FileItem mParent;
+    private File     mFile;
+    private String   mName;
+    private boolean  isSdcard;
+
+    private RelativeLayout fileContentRl;
+    private ImageView      fileTypeIv;
+    private TextView       fileNameTv;
+    private TextView       fileInfoTv;
+    private TextView       fileMenuDeleteTv;
+
+    public FileItem(File file, String name) {
+        this(file, name, false);
+    }
+
+    public FileItem(File file, String name, boolean isSdcard) {
+        super(R.layout.du_item_file);
+        mFile = file;
+        mName = name;
+        this.isSdcard = isSdcard;
+    }
+
+    public FileItem(FileItem parent, File file) {
+        super(R.layout.du_item_file);
+        mParent = parent;
+        mFile = file;
+        mName = file.getName();
+    }
+
+    public FileItem() {
+        super(R.layout.du_item_empty);
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        if (isViewType(R.layout.du_item_empty)) return;
+        fileContentRl = holder.findViewById(R.id.fileContentRl);
+        fileTypeIv = holder.findViewById(R.id.fileTypeIv);
+        fileNameTv = holder.findViewById(R.id.fileNameTv);
+        fileInfoTv = holder.findViewById(R.id.fileInfoTv);
+        fileMenuDeleteTv = holder.findViewById(R.id.fileMenuDeleteTv);
+
+        ClickUtils.applyPressedBgDark(fileContentRl);
+        ClickUtils.applyPressedBgDark(fileMenuDeleteTv);
+
+        fileNameTv.setText(mName);
+
+        fileMenuDeleteTv.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                boolean delete = FileUtils.delete(mFile);
+                if (delete) {
+                    getAdapter().removeItem(FileItem.this, true);
+                    if (getAdapter().getItems().isEmpty()) {
+                        getAdapter().addItem(new FileItem());
+                        getAdapter().notifyDataSetChanged();
+                        v.getRootView().findViewById(R.id.fileExplorerSearchEt).setVisibility(View.GONE);
+                    }
+                } else {
+                    FloatToast.showLong(FloatToast.WARNING, "Delete failed!");
+                }
+            }
+        });
+        fileMenuDeleteTv.setVisibility(mParent == null ? View.GONE : View.VISIBLE);
+
+        if (mFile.isDirectory()) {
+            fileTypeIv.setImageResource(R.drawable.du_ic_debug_file_explorer);
+            fileInfoTv.setText(String.format("%s  %s", StringUtils.getString(R.string.du_file_item_num, CollectionUtils.size(mFile.list())), TimeUtils.millis2String(mFile.lastModified(), "yyyy.MM.dd")));
+            fileContentRl.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(final View v) {
+                    if (isSdcard) {
+                        PermissionUtils.permission(PermissionConstants.STORAGE)
+                                .callback(new PermissionUtils.SimpleCallback() {
+                                    @Override
+                                    public void onGranted() {
+                                        FileExplorerFloatView floatView = (FileExplorerFloatView) v.getRootView();
+                                        FileContentView.show(floatView, FileItem.this);
+                                    }
+
+                                    @Override
+                                    public void onDenied() {
+                                        FloatToast.showShort("Permission of storage denied!");
+                                    }
+                                })
+                                .request();
+                    } else {
+                        FileExplorerFloatView floatView = (FileExplorerFloatView) v.getRootView();
+                        FileContentView.show(floatView, FileItem.this);
+                    }
+                }
+            });
+        } else {
+            fileInfoTv.setText(String.format("%s  %s", FileUtils.getSize(mFile), TimeUtils.millis2String(mFile.lastModified(), "yyyy.MM.dd")));
+
+            @FileHelper.FileType int fileType = FileHelper.getFileType(mFile);
+            if (fileType == FileHelper.IMAGE) {
+                ImageLoader.load(mFile, fileTypeIv);
+                fileContentRl.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        FileExplorerFloatView floatView = (FileExplorerFloatView) v.getRootView();
+                        ImageViewer.show(floatView, mFile);
+                    }
+                });
+            } else if (fileType == FileHelper.UTF8) {
+                fileTypeIv.setImageResource(R.drawable.du_ic_item_file_utf8);
+            } else if (fileType == FileHelper.SP) {
+                fileTypeIv.setImageResource(R.drawable.du_ic_item_file_sp);
+                fileContentRl.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        FileExplorerFloatView floatView = (FileExplorerFloatView) v.getRootView();
+                        SpViewerContentView.show(floatView, mFile);
+                    }
+                });
+            } else {
+                fileContentRl.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        Intent intent = new Intent(Intent.ACTION_VIEW);
+                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                        intent.setData(UriUtils.file2Uri(mFile));
+                        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+                        intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
+                        ActivityUtils.startActivity(intent);
+                    }
+                });
+                fileTypeIv.setImageResource(R.drawable.du_ic_item_file_default);
+            }
+        }
+    }
+
+    public File getFile() {
+        return mFile;
+    }
+
+    public static List<FileItem> getFileItems(final FileItem parent) {
+        if (parent == null) return getFileItems();
+        List<File> files = FileUtils.listFilesInDir(parent.getFile(), new Comparator<File>() {
+            @Override
+            public int compare(File o1, File o2) {
+                if (o1.isDirectory() && o2.isFile()) {
+                    return -1;
+                } else if (o1.isFile() && o2.isDirectory()) {
+                    return 1;
+                } else {
+                    return o1.getName().toLowerCase().compareTo(o2.getName().toLowerCase());
+                }
+            }
+        });
+        return (List<FileItem>) CollectionUtils.collect(files, new CollectionUtils.Transformer<File, FileItem>() {
+            @Override
+            public FileItem transform(File input) {
+                return new FileItem(parent, input);
+            }
+        });
+    }
+
+    private static List<FileItem> getFileItems() {
+        List<FileItem> fileItems = new ArrayList<>();
+        String internalAppDataPath = PathUtils.getInternalAppDataPath();
+        if (!StringUtils.isEmpty(internalAppDataPath)) {
+            File internalDataFile = new File(internalAppDataPath);
+            if (internalDataFile.exists()) {
+                fileItems.add(new FileItem(internalDataFile, "internal"));
+            }
+        }
+        String externalAppDataPath = PathUtils.getExternalAppDataPath();
+        if (!StringUtils.isEmpty(externalAppDataPath)) {
+            File externalDataFile = new File(externalAppDataPath);
+            if (externalDataFile.exists()) {
+                fileItems.add(new FileItem(externalDataFile, "external"));
+            }
+        }
+        List<String> mountedSDCardPath = SDCardUtils.getMountedSDCardPath();
+        if (!mountedSDCardPath.isEmpty()) {
+            for (int i = 0; i < mountedSDCardPath.size(); i++) {
+                String path = mountedSDCardPath.get(i);
+                File sdPath = new File(path);
+                if (sdPath.exists()) {
+                    fileItems.add(new FileItem(sdPath, "sdcard" + i + "_" + sdPath.getName(), true));
+                }
+            }
+        }
+        return fileItems;
+    }
+
+    public static List<FileItem> filterItems(List<FileItem> items, final String key) {
+        return (List<FileItem>) CollectionUtils.select(items, new CollectionUtils.Predicate<FileItem>() {
+            @Override
+            public boolean evaluate(FileItem item) {
+                return item.mName.toLowerCase().contains(key.toLowerCase());
+            }
+        });
+    }
+
+    public static boolean isEmptyItems(List<FileItem> items) {
+        return EMPTY == items;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/image/ImageViewer.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/image/ImageViewer.java
new file mode 100644
index 0000000000..cec1034f25
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/image/ImageViewer.java
@@ -0,0 +1,43 @@
+package com.blankj.utildebug.debug.tool.fileExplorer.image;
+
+import com.blankj.utilcode.util.ImageUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.BaseContentView;
+import com.blankj.utildebug.debug.tool.fileExplorer.FileExplorerFloatView;
+import com.github.chrisbanes.photoview.PhotoView;
+
+import java.io.File;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/08
+ *     desc  :
+ * </pre>
+ */
+public class ImageViewer extends BaseContentView<FileExplorerFloatView> {
+
+    private File mFile;
+
+    private PhotoView photoView;
+
+    public static void show(FileExplorerFloatView floatView, File file) {
+        new ImageViewer(file).attach(floatView, true);
+    }
+
+    public ImageViewer(File file) {
+        mFile = file;
+    }
+
+    @Override
+    public int bindLayout() {
+        return R.layout.du_debug_file_explorer_image;
+    }
+
+    @Override
+    public void onAttach() {
+        photoView = findViewById(R.id.imageViewerPv);
+        photoView.setImageBitmap(ImageUtils.getBitmap(mFile));
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpItem.java
new file mode 100644
index 0000000000..845f0cdb32
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpItem.java
@@ -0,0 +1,142 @@
+package com.blankj.utildebug.debug.tool.fileExplorer.sp;
+
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.Switch;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.CollectionUtils;
+import com.blankj.utilcode.util.ColorUtils;
+import com.blankj.utilcode.util.MapUtils;
+import com.blankj.utilcode.util.SPUtils;
+import com.blankj.utilcode.util.SpanUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItem;
+import com.blankj.utildebug.base.rv.ItemViewHolder;
+import com.blankj.utildebug.base.view.FloatToast;
+import com.blankj.utildebug.debug.tool.fileExplorer.FileExplorerFloatView;
+import com.blankj.utildebug.helper.SpHelper;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/09
+ *     desc  :
+ * </pre>
+ */
+public class SpItem extends BaseItem<SpItem> {
+
+    private SPUtils mSPUtils;
+    private String  mKey;
+    private Object  mValue;
+    private Class   mClass;
+
+    private RelativeLayout contentRl;
+    private TextView       titleTv;
+    private TextView       contentTv;
+    private ImageView      goIv;
+    private Switch         aSwitch;
+    private TextView       deleteTv;
+
+    public SpItem() {
+        super(R.layout.du_item_empty);
+    }
+
+    public SpItem(SPUtils spUtils, String key, Object value) {
+        super(R.layout.du_item_sp);
+        mSPUtils = spUtils;
+        mKey = key;
+        mValue = value;
+        mClass = mValue.getClass();
+    }
+
+    @Override
+    public void bind(@NonNull final ItemViewHolder holder, int position) {
+        if (isViewType(R.layout.du_item_empty)) return;
+        contentRl = holder.findViewById(R.id.itemSpContentRl);
+        titleTv = holder.findViewById(R.id.itemSpTitleTv);
+        contentTv = holder.findViewById(R.id.itemSpContentTv);
+        goIv = holder.findViewById(R.id.itemSpGoIv);
+        aSwitch = holder.findViewById(R.id.itemSpSwitch);
+        deleteTv = holder.findViewById(R.id.itemSpDeleteTv);
+
+        SpanUtils.with(titleTv)
+                .append(mKey)
+                .append("(" + SpHelper.getSpClassName(mClass) + ")").setForegroundColor(ColorUtils.getColor(R.color.loveGreen))
+                .create();
+        contentTv.setText(mValue.toString());
+
+        deleteTv.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                FloatToast.showShort("haha");
+            }
+        });
+
+        if (Boolean.class.equals(mClass)) {
+            holder.itemView.setOnTouchListener(null);
+            aSwitch.setVisibility(View.VISIBLE);
+            goIv.setVisibility(View.GONE);
+            aSwitch.setChecked((Boolean) mValue);
+            View.OnClickListener toggle = new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    final boolean state = !(Boolean) mValue;
+                    mValue = state;
+                    mSPUtils.put(mKey, state);
+                    aSwitch.setChecked(state);
+                    contentTv.setText(mValue.toString());
+                }
+            };
+            aSwitch.setOnClickListener(toggle);
+            contentRl.setOnClickListener(toggle);
+        } else if (HashSet.class.equals(mClass)) {
+            holder.itemView.setOnTouchListener(null);
+            aSwitch.setVisibility(View.GONE);
+            goIv.setVisibility(View.GONE);
+            contentRl.setOnClickListener(null);
+        } else {
+            ClickUtils.applyPressedBgDark(holder.itemView);
+            aSwitch.setVisibility(View.GONE);
+            goIv.setVisibility(View.VISIBLE);
+            contentRl.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    FileExplorerFloatView floatView = (FileExplorerFloatView) v.getRootView();
+                    SpModifyContentView.show(floatView, mSPUtils, mKey, mValue);
+                }
+            });
+        }
+    }
+
+    public static List<SpItem> getSpItems(SPUtils spUtils) {
+        Map<String, ?> spMap = spUtils.getAll();
+        if (MapUtils.isEmpty(spMap)) {
+            return CollectionUtils.newArrayList(new SpItem());
+        }
+        List<SpItem> items = new ArrayList<>();
+        for (Map.Entry<String, ?> entry : spMap.entrySet()) {
+            items.add(new SpItem(spUtils, entry.getKey(), entry.getValue()));
+        }
+        return items;
+    }
+
+    public static List<SpItem> filterItems(List<SpItem> items, final String key) {
+        return (List<SpItem>) CollectionUtils.select(items, new CollectionUtils.Predicate<SpItem>() {
+            @Override
+            public boolean evaluate(SpItem item) {
+                return item.mKey.toLowerCase().contains(key.toLowerCase());
+            }
+        });
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpModifyContentView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpModifyContentView.java
new file mode 100644
index 0000000000..4e79380a16
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpModifyContentView.java
@@ -0,0 +1,88 @@
+package com.blankj.utildebug.debug.tool.fileExplorer.sp;
+
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.ColorUtils;
+import com.blankj.utilcode.util.SPUtils;
+import com.blankj.utilcode.util.SpanUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.BaseContentView;
+import com.blankj.utildebug.base.view.FloatToast;
+import com.blankj.utildebug.debug.tool.fileExplorer.FileExplorerFloatView;
+import com.blankj.utildebug.helper.SpHelper;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/09
+ *     desc  :
+ * </pre>
+ */
+public class SpModifyContentView extends BaseContentView<FileExplorerFloatView> {
+
+    private SPUtils mSPUtils;
+    private String  mKey;
+    private Object  mValue;
+    private Class   mClass;
+
+    private TextView spModifyTitleTv;
+    private EditText spModifyEt;
+    private TextView spModifyCancelTv;
+    private TextView spModifyYesTv;
+
+    public static void show(FileExplorerFloatView floatView, SPUtils spUtils, String key, Object value) {
+        new SpModifyContentView(spUtils, key, value).attach(floatView, true);
+    }
+
+    public SpModifyContentView(SPUtils spUtils, String key, Object value) {
+        mSPUtils = spUtils;
+        mKey = key;
+        mValue = value;
+        mClass = value.getClass();
+    }
+
+    @Override
+    public int bindLayout() {
+        return R.layout.du_debug_file_explorer_sp_modify;
+    }
+
+    @Override
+    public void onAttach() {
+        spModifyTitleTv = findViewById(R.id.spModifyTitleTv);
+        spModifyEt = findViewById(R.id.spModifyEt);
+        spModifyCancelTv = findViewById(R.id.spModifyCancelTv);
+        spModifyYesTv = findViewById(R.id.spModifyYesTv);
+
+        SpanUtils.with(spModifyTitleTv)
+                .append(mKey)
+                .append("(" + SpHelper.getSpClassName(mClass) + ")").setForegroundColor(ColorUtils.getColor(R.color.loveGreen))
+                .create();
+        spModifyEt.setText(mValue.toString());
+
+        ClickUtils.applyPressedViewScale(spModifyCancelTv, spModifyYesTv);
+
+        spModifyCancelTv.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                getFloatView().back();
+            }
+        });
+
+        spModifyYesTv.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String val = spModifyEt.getText().toString();
+                boolean isSuccess = SpHelper.putValue(mSPUtils, mKey, val, mClass);
+                if (isSuccess) {
+                    getFloatView().back();
+                } else {
+                    FloatToast.showShort("Type is wrong.");
+                }
+            }
+        });
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpViewerContentView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpViewerContentView.java
new file mode 100644
index 0000000000..e7560f90b0
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/sp/SpViewerContentView.java
@@ -0,0 +1,91 @@
+package com.blankj.utildebug.debug.tool.fileExplorer.sp;
+
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.FileUtils;
+import com.blankj.utilcode.util.SPUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItemAdapter;
+import com.blankj.utildebug.base.rv.RecycleViewDivider;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+import com.blankj.utildebug.base.view.BaseContentView;
+import com.blankj.utildebug.base.view.SearchEditText;
+import com.blankj.utildebug.base.view.listener.OnRefreshListener;
+import com.blankj.utildebug.debug.tool.fileExplorer.FileExplorerFloatView;
+
+import java.io.File;
+import java.util.List;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/09
+ *     desc  :
+ * </pre>
+ */
+public class SpViewerContentView extends BaseContentView<FileExplorerFloatView> {
+
+    private File                    mFile;
+    private BaseItemAdapter<SpItem> mAdapter;
+    private List<SpItem>            mSrcItems;
+    private String                  mSpName;
+    private SPUtils                 mSPUtils;
+
+    private TextView       spViewTitle;
+    private SearchEditText spViewSearchEt;
+    private RecyclerView   spViewRv;
+
+    public static void show(FileExplorerFloatView floatView, File file) {
+        new SpViewerContentView(file).attach(floatView, true);
+    }
+
+    public SpViewerContentView(File file) {
+        mFile = file;
+        mSpName = FileUtils.getFileNameNoExtension(mFile);
+        mSPUtils = SPUtils.getInstance(mSpName);
+    }
+
+    @Override
+    public int bindLayout() {
+        return R.layout.du_debug_file_explorer_sp;
+    }
+
+    @Override
+    public void onAttach() {
+        spViewTitle = findViewById(R.id.spViewTitle);
+        spViewSearchEt = findViewById(R.id.spViewSearchEt);
+        spViewRv = findViewById(R.id.spViewRv);
+
+        spViewTitle.setText(mSpName);
+
+        mAdapter = new BaseItemAdapter<>();
+        mSrcItems = SpItem.getSpItems(mSPUtils);
+        mAdapter.setItems(mSrcItems);
+        spViewRv.setAdapter(mAdapter);
+        spViewRv.setLayoutManager(new LinearLayoutManager(getContext()));
+        spViewRv.addItemDecoration(new RecycleViewDivider(getContext(), RecycleViewDivider.VERTICAL, R.drawable.du_shape_divider));
+
+        spViewSearchEt.setOnTextChangedListener(new SearchEditText.OnTextChangedListener() {
+            @Override
+            public void onTextChanged(String text) {
+                mAdapter.setItems(SpItem.filterItems(mSrcItems, text));
+                mAdapter.notifyDataSetChanged();
+            }
+        });
+
+        setOnRefreshListener(spViewRv, new OnRefreshListener() {
+            @Override
+            public void onRefresh(BaseContentFloatView floatView) {
+                mSrcItems = SpItem.getSpItems(mSPUtils);
+                mAdapter.setItems(mSrcItems);
+                mAdapter.notifyDataSetChanged();
+                spViewSearchEt.reset();
+                floatView.closeRefresh();
+            }
+        });
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/text/TextViewer.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/text/TextViewer.java
new file mode 100644
index 0000000000..3da8293ac8
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/fileExplorer/text/TextViewer.java
@@ -0,0 +1,14 @@
+package com.blankj.utildebug.debug.tool.fileExplorer.text;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/08
+ *     desc  :
+ * </pre>
+ */
+public class TextViewer {
+
+
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/logcat/LogcatDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/logcat/LogcatDebug.java
new file mode 100644
index 0000000000..634f18ab77
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/logcat/LogcatDebug.java
@@ -0,0 +1,38 @@
+package com.blankj.utildebug.debug.tool.logcat;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.FloatToast;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/05
+ *     desc  :
+ * </pre>
+ */
+public class LogcatDebug extends AbsToolDebug {
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        return R.drawable.du_ic_debug_logcat;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_logcat;
+    }
+
+    @Override
+    public void onClick(View view) {
+        FloatToast.showShort(FloatToast.WARNING, "Developing...");
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/restartApp/RestartAppDebug.java b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/restartApp/RestartAppDebug.java
new file mode 100644
index 0000000000..f4d378af63
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/debug/tool/restartApp/RestartAppDebug.java
@@ -0,0 +1,39 @@
+package com.blankj.utildebug.debug.tool.restartApp;
+
+import android.content.Context;
+import android.view.View;
+
+import com.blankj.utilcode.util.AppUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.debug.tool.AbsToolDebug;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/04
+ *     desc  :
+ * </pre>
+ */
+public class RestartAppDebug extends AbsToolDebug {
+
+    @Override
+    public void onAppCreate(Context context) {
+
+    }
+
+    @Override
+    public int getIcon() {
+        return R.drawable.du_ic_debug_restart_app;
+    }
+
+    @Override
+    public int getName() {
+        return R.string.du_restart_app;
+    }
+
+    @Override
+    public void onClick(View view) {
+        AppUtils.relaunchApp(true);
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/helper/FileHelper.java b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/FileHelper.java
new file mode 100644
index 0000000000..a040c0b78d
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/FileHelper.java
@@ -0,0 +1,57 @@
+package com.blankj.utildebug.helper;
+
+import com.blankj.utilcode.util.FileUtils;
+import com.blankj.utilcode.util.ImageUtils;
+import com.blankj.utilcode.util.StringUtils;
+
+import java.io.File;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import androidx.annotation.IntDef;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/08
+ *     desc  :
+ * </pre>
+ */
+public class FileHelper {
+
+    public static final int IMAGE   = 0;
+    public static final int SP      = 1;
+    public static final int UTF8    = 2;
+    public static final int UNKNOWN = -1;
+
+    @IntDef({IMAGE, SP, UTF8, UNKNOWN})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface FileType {
+    }
+
+    @FileType
+    public static int getFileType(String path) {
+        return getFileType(FileUtils.getFileByPath(path));
+    }
+
+    @FileType
+    public static int getFileType(File file) {
+        if (!FileUtils.isFileExists(file)) return UNKNOWN;
+        if (ImageUtils.isImage(file)) {
+            return IMAGE;
+        }
+        if (FileUtils.getFileExtension(file).equals("xml")) {
+            File parentFile = file.getParentFile();
+            if (parentFile != null) {
+                if (StringUtils.equals(parentFile.getName(), "shared_prefs")) {
+                    return SP;
+                }
+            }
+        }
+        if (FileUtils.isUtf8(file)) {
+            return UTF8;
+        }
+        return UNKNOWN;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/helper/ImageLoader.java b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/ImageLoader.java
new file mode 100644
index 0000000000..4a1199d566
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/ImageLoader.java
@@ -0,0 +1,45 @@
+package com.blankj.utildebug.helper;
+
+import android.graphics.Bitmap;
+import android.widget.ImageView;
+
+import com.blankj.utilcode.util.FileUtils;
+import com.blankj.utilcode.util.ImageUtils;
+import com.blankj.utilcode.util.ThreadUtils;
+
+import java.io.File;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/06
+ *     desc  :
+ * </pre>
+ */
+public class ImageLoader {
+
+    public static void load(final String path, final ImageView imageView) {
+        load(FileUtils.getFileByPath(path), imageView);
+    }
+
+    public static void load(final File file, final ImageView imageView) {
+        if (!FileUtils.isFileExists(file)) return;
+        imageView.post(new Runnable() {
+            @Override
+            public void run() {
+                ThreadUtils.executeByCached(new ThreadUtils.SimpleTask<Bitmap>() {
+                    @Override
+                    public Bitmap doInBackground() throws Throwable {
+                        return ImageUtils.getBitmap(file, imageView.getWidth(), imageView.getHeight());
+                    }
+
+                    @Override
+                    public void onSuccess(final Bitmap result) {
+                        imageView.setImageBitmap(result);
+                    }
+                });
+            }
+        });
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/helper/ShadowHelper.java b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/ShadowHelper.java
new file mode 100644
index 0000000000..45de41eed1
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/ShadowHelper.java
@@ -0,0 +1,34 @@
+package com.blankj.utildebug.helper;
+
+import android.view.View;
+
+import com.blankj.utilcode.util.ShadowUtils;
+import com.blankj.utilcode.util.SizeUtils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/16
+ *     desc  :
+ * </pre>
+ */
+public class ShadowHelper {
+
+    public static void applyDebugIcon(View view) {
+        ShadowUtils.apply(view, new ShadowUtils.Config()
+                .setCircle()
+                .setShadowColor(0xc0_ffffff, 0x60_ffffff)
+        );
+    }
+
+    public static void applyFloatView(View view) {
+        ShadowUtils.apply(view, new ShadowUtils.Config().setShadowRadius(SizeUtils.dp2px(8)));
+    }
+
+    public static void applyMenu(View view) {
+        ShadowUtils.apply(view, new ShadowUtils.Config()
+                .setShadowRadius(SizeUtils.dp2px(4))
+        );
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/helper/SpHelper.java b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/SpHelper.java
new file mode 100644
index 0000000000..a7bdc7c9d0
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/SpHelper.java
@@ -0,0 +1,75 @@
+package com.blankj.utildebug.helper;
+
+import com.blankj.utilcode.util.SPUtils;
+
+import java.util.HashSet;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/09
+ *     desc  :
+ * </pre>
+ */
+public class SpHelper {
+
+    public static String getSpClassName(Class cls) {
+        if (cls == null) return "null";
+        if (Boolean.class.equals(cls)) {
+            return "boolean";
+        }
+        if (String.class.equals(cls)) {
+            return "String";
+        }
+        if (Integer.class.equals(cls)) {
+            return "int";
+        }
+        if (Float.class.equals(cls)) {
+            return "float";
+        }
+        if (Long.class.equals(cls)) {
+            return "long";
+        }
+        if (HashSet.class.equals(cls)) {
+            return "set";
+        }
+        return "unknown";
+    }
+
+    public static boolean putValue(SPUtils spUtils, String key, String value, Class cls) {
+        if (cls == null) return false;
+        if (String.class.equals(cls)) {
+            spUtils.put(key, value);
+            return true;
+        }
+        if (Integer.class.equals(cls)) {
+            try {
+                int val = Integer.parseInt(value);
+                spUtils.put(key, val);
+                return true;
+            } catch (NumberFormatException e) {
+                return false;
+            }
+        }
+        if (Float.class.equals(cls)) {
+            try {
+                float val = Float.parseFloat(value);
+                spUtils.put(key, val);
+                return true;
+            } catch (NumberFormatException e) {
+                return false;
+            }
+        }
+        if (Long.class.equals(cls)) {
+            try {
+                long val = Long.parseLong(value);
+                spUtils.put(key, val);
+                return true;
+            } catch (NumberFormatException e) {
+                return false;
+            }
+        }
+        return false;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/helper/WindowHelper.java b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/WindowHelper.java
new file mode 100644
index 0000000000..e64574363c
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/helper/WindowHelper.java
@@ -0,0 +1,40 @@
+package com.blankj.utildebug.helper;
+
+import android.content.Context;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+
+import com.blankj.utilcode.util.ScreenUtils;
+import com.blankj.utilcode.util.Utils;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/29
+ *     desc  :
+ * </pre>
+ */
+public class WindowHelper {
+
+    private static WindowManager sWM;
+
+    private WindowHelper() {
+    }
+
+    public static void updateViewLayout(final View view, ViewGroup.LayoutParams params) {
+        getWindowManager().updateViewLayout(view, params);
+    }
+
+    public static int getAppWindowHeight() {
+        return ScreenUtils.getAppScreenHeight();
+    }
+
+    public static WindowManager getWindowManager() {
+        if (sWM == null) {
+            sWM = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
+        }
+        return sWM;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/icon/DebugIcon.java b/lib/utildebug/src/main/java/com/blankj/utildebug/icon/DebugIcon.java
new file mode 100644
index 0000000000..e5a65d4eac
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/icon/DebugIcon.java
@@ -0,0 +1,173 @@
+package com.blankj.utildebug.icon;
+
+import android.content.res.Configuration;
+import android.os.Build;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.animation.DecelerateInterpolator;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+
+import com.blankj.utilcode.util.BarUtils;
+import com.blankj.utilcode.util.PermissionUtils;
+import com.blankj.utilcode.util.ToastUtils;
+import com.blankj.utilcode.util.TouchUtils;
+import com.blankj.utildebug.DebugUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.config.DebugConfig;
+import com.blankj.utildebug.helper.ShadowHelper;
+import com.blankj.utildebug.menu.DebugMenu;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/26
+ *     desc  :
+ * </pre>
+ */
+public class DebugIcon extends RelativeLayout {
+
+    private static final DebugIcon INSTANCE = new DebugIcon();
+
+    private int mIconId;
+
+    public static DebugIcon getInstance() {
+        return INSTANCE;
+    }
+
+    public static void setVisibility(boolean isShow) {
+        if (INSTANCE == null) return;
+        INSTANCE.setVisibility(isShow ? VISIBLE : GONE);
+    }
+
+    public DebugIcon() {
+        super(DebugUtils.getApp());
+        inflate(getContext(), R.layout.du_debug_icon, this);
+        ShadowHelper.applyDebugIcon(this);
+        TouchUtils.setOnTouchListener(this, new TouchUtils.OnTouchUtilsListener() {
+
+            private int rootViewWidth;
+            private int rootViewHeight;
+            private int viewWidth;
+            private int viewHeight;
+            private int statusBarHeight;
+
+            @Override
+            public boolean onDown(View view, int x, int y, MotionEvent event) {
+                viewWidth = view.getWidth();
+                viewHeight = view.getHeight();
+                View contentView = view.getRootView().findViewById(android.R.id.content);
+                rootViewWidth = contentView.getWidth();
+                rootViewHeight = contentView.getHeight();
+                statusBarHeight = BarUtils.getStatusBarHeight();
+
+                processScale(view, true);
+                return true;
+            }
+
+            @Override
+            public boolean onMove(View view, int direction, int x, int y, int dx, int dy, int totalX, int totalY, MotionEvent event) {
+                view.setX(Math.min(Math.max(0, view.getX() + dx), rootViewWidth - viewWidth));
+                view.setY(Math.min(Math.max(statusBarHeight, view.getY() + dy), rootViewHeight - viewHeight));
+                return true;
+            }
+
+            @Override
+            public boolean onStop(View view, int direction, int x, int y, int totalX, int totalY, int vx, int vy, MotionEvent event) {
+                stick2HorizontalSide(view);
+                processScale(view, false);
+                return true;
+            }
+
+            private void stick2HorizontalSide(View view) {
+                view.animate()
+                        .setInterpolator(new DecelerateInterpolator())
+                        .translationX(view.getX() + viewWidth / 2f > rootViewWidth / 2f ? rootViewWidth - viewWidth : 0)
+                        .setDuration(100)
+                        .withEndAction(new Runnable() {
+                            @Override
+                            public void run() {
+                                savePosition();
+                            }
+                        })
+                        .start();
+            }
+
+            private void processScale(final View view, boolean isDown) {
+                float value = isDown ? 1 - 0.1f : 1;
+                view.animate()
+                        .scaleX(value)
+                        .scaleY(value)
+                        .setDuration(100)
+                        .start();
+            }
+        });
+
+        setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                    PermissionUtils.requestDrawOverlays(new PermissionUtils.SimpleCallback() {
+                        @Override
+                        public void onGranted() {
+                            DebugMenu.getInstance().show();
+                        }
+
+                        @Override
+                        public void onDenied() {
+                            ToastUtils.showLong(R.string.de_permission_tips);
+                        }
+                    });
+                } else {
+                    DebugMenu.getInstance().show();
+                }
+            }
+        });
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        wrapPosition();
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        savePosition();
+    }
+
+    private void savePosition() {
+        DebugConfig.saveViewX(this, (int) getX());
+        DebugConfig.saveViewY(this, (int) getY());
+    }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        wrapPosition();
+    }
+
+    private void wrapPosition() {
+        post(new Runnable() {
+            @Override
+            public void run() {
+                View contentView = getRootView().findViewById(android.R.id.content);
+                if (contentView == null) return;
+                setX(DebugConfig.getViewX(DebugIcon.this));
+                setY(DebugConfig.getViewY(DebugIcon.this, contentView.getHeight() / 3));
+                setX(getX() + getWidth() / 2f > contentView.getWidth() / 2f ? contentView.getWidth() - getWidth() : 0);
+            }
+        });
+    }
+
+    public void setIconId(final int iconId) {
+        ImageView debugPanelIconIv = findViewById(R.id.debugIconIv);
+        debugPanelIconIv.setImageResource(mIconId);
+    }
+
+    public int getIconId() {
+        return mIconId;
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugItem.java
new file mode 100644
index 0000000000..7124583ec3
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugItem.java
@@ -0,0 +1,78 @@
+package com.blankj.utildebug.menu;
+
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.ClickUtils;
+import com.blankj.utilcode.util.CollectionUtils;
+import com.blankj.utilcode.util.ColorUtils;
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.drawable.PolygonDrawable;
+import com.blankj.utildebug.base.rv.BaseItem;
+import com.blankj.utildebug.base.rv.ItemViewHolder;
+import com.blankj.utildebug.debug.IDebug;
+
+import java.util.List;
+import java.util.Random;
+
+import androidx.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/29
+ *     desc  :
+ * </pre>
+ */
+public class DebugItem extends BaseItem<DebugItem> {
+
+    private IDebug mDebug;
+    private int    mColor = getRandomColor();
+
+    private DebugItem(IDebug debug) {
+        super(R.layout.du_item_menu_item);
+        mDebug = debug;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        ImageView menuItemIconIv = holder.findViewById(R.id.menuItemIconIv);
+        TextView menuItemNameTv = holder.findViewById(R.id.menuItemNameTv);
+
+        ClickUtils.applyPressedBgDark(holder.itemView);
+        ClickUtils.applyPressedViewScale(holder.itemView);
+
+        menuItemIconIv.setBackgroundDrawable(new PolygonDrawable(5, mColor));
+        menuItemIconIv.setImageResource(mDebug.getIcon());
+        menuItemNameTv.setText(StringUtils.getString(mDebug.getName()));
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mDebug.onClick(v);
+            }
+        });
+    }
+
+    public static List<DebugItem> getDebugItems(List<IDebug> debugs) {
+        return (List<DebugItem>) CollectionUtils.collect(debugs, new CollectionUtils.Transformer<IDebug, DebugItem>() {
+            @Override
+            public DebugItem transform(IDebug input) {
+                return new DebugItem(input);
+            }
+        });
+    }
+
+    private static final Random RANDOM = new Random();
+
+    private static int getRandomColor() {
+        return ColorUtils.getColor(COLORS[RANDOM.nextInt(6)]);
+    }
+
+    private static final int[] COLORS = new int[]{
+            R.color.bittersweet, R.color.sunflower, R.color.grass,
+            R.color.blueJeans, R.color.lavander, R.color.pinkRose
+    };
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugMenu.java b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugMenu.java
new file mode 100644
index 0000000000..8a0ac4f0f0
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugMenu.java
@@ -0,0 +1,85 @@
+package com.blankj.utildebug.menu;
+
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItemAdapter;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+import com.blankj.utildebug.config.DebugConfig;
+import com.blankj.utildebug.debug.IDebug;
+import com.blankj.utildebug.icon.DebugIcon;
+
+import java.util.List;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/29
+ *     desc  :
+ * </pre>
+ */
+public class DebugMenu extends BaseContentFloatView<DebugMenu> {
+
+    private static final DebugMenu INSTANCE = new DebugMenu();
+
+    private List<IDebug> mDebugs;
+
+    private BaseItemAdapter<DebugMenuItem> mAdapter;
+
+    private RecyclerView debugMenuRv;
+
+    public static DebugMenu getInstance() {
+        return INSTANCE;
+    }
+
+    @Override
+    public int bindTitle() {
+        return R.string.du_menus;
+    }
+
+    @Override
+    public int bindContentLayout() {
+        return R.layout.du_debug_menu;
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        DebugIcon.setVisibility(false);
+        if (!DebugConfig.isNoMoreReminder()) {
+            new ReminderView().show();
+        }
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        int a = 0xe1;
+        DebugIcon.setVisibility(true);
+        super.onDetachedFromWindow();
+    }
+
+    @Override
+    public void initContentView() {
+        setSwipeBackEnabled(false);
+
+        debugMenuRv = findViewById(R.id.debugMenuRv);
+        mAdapter = new BaseItemAdapter<>();
+        mAdapter.setItems(DebugMenuItem.getDebugMenuItems(mDebugs));
+        debugMenuRv.setAdapter(mAdapter);
+        debugMenuRv.setLayoutManager(new LinearLayoutManager(getContext()));
+    }
+
+    public void setDebugs(List<IDebug> debugs) {
+        mDebugs = debugs;
+    }
+
+    public void addDebugs(List<IDebug> debugs) {
+        if (debugs == null || debugs.size() == 0) return;
+        mDebugs.addAll(debugs);
+        if (mAdapter == null) return;
+        mAdapter.notifyDataSetChanged();
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugMenuItem.java b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugMenuItem.java
new file mode 100644
index 0000000000..cc1f00bdf2
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/DebugMenuItem.java
@@ -0,0 +1,87 @@
+package com.blankj.utildebug.menu;
+
+import android.widget.TextView;
+
+import com.blankj.utilcode.util.StringUtils;
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.rv.BaseItem;
+import com.blankj.utildebug.base.rv.BaseItemAdapter;
+import com.blankj.utildebug.base.rv.ItemViewHolder;
+import com.blankj.utildebug.debug.IDebug;
+import com.blankj.utildebug.helper.ShadowHelper;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.GridLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/08/29
+ *     desc  :
+ * </pre>
+ */
+public class DebugMenuItem extends BaseItem<DebugMenuItem> {
+
+    private String       mTitle;
+    private List<IDebug> mDebugs;
+
+    private DebugMenuItem(String title, List<IDebug> debugs) {
+        super(R.layout.du_item_menu);
+        mTitle = title;
+        mDebugs = debugs;
+    }
+
+    @Override
+    public void bind(@NonNull ItemViewHolder holder, int position) {
+        TextView menuTitle = holder.findViewById(R.id.menuCategory);
+        RecyclerView menuRv = holder.findViewById(R.id.menuRv);
+
+        ShadowHelper.applyMenu(holder.itemView);
+
+        menuTitle.setText(mTitle);
+
+        BaseItemAdapter<DebugItem> adapter = new BaseItemAdapter<>();
+        adapter.setItems(DebugItem.getDebugItems(mDebugs));
+        menuRv.setAdapter(adapter);
+        menuRv.setLayoutManager(new GridLayoutManager(menuRv.getContext(), 4));
+    }
+
+    public static List<DebugMenuItem> getDebugMenuItems(List<IDebug> debugs) {
+        Map<Integer, List<IDebug>> debugMap = new LinkedHashMap<>();
+        for (IDebug debug : debugs) {
+            List<IDebug> debugList = debugMap.get(debug.getCategory());
+            if (debugList == null) {
+                debugList = new ArrayList<>();
+                debugMap.put(debug.getCategory(), debugList);
+            }
+            debugList.add(debug);
+        }
+        List<DebugMenuItem> itemList = new ArrayList<>();
+        for (Map.Entry<Integer, List<IDebug>> entry : debugMap.entrySet()) {
+            itemList.add(new DebugMenuItem(getCategoryString(entry.getKey()), entry.getValue()));
+        }
+        return itemList;
+    }
+
+    private static String getCategoryString(int category) {
+        switch (category) {
+            case IDebug.TOOLS:
+                return StringUtils.getString(R.string.du_tools);
+            case IDebug.PERFORMANCE:
+                return StringUtils.getString(R.string.du_performance);
+            case IDebug.UI:
+                return StringUtils.getString(R.string.du_ui);
+            case IDebug.BIZ:
+                return StringUtils.getString(R.string.du_biz);
+            default:
+                return StringUtils.getString(R.string.du_uncategorized);
+        }
+    }
+}
diff --git a/lib/utildebug/src/main/java/com/blankj/utildebug/menu/ReminderView.java b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/ReminderView.java
new file mode 100644
index 0000000000..cde3db3f72
--- /dev/null
+++ b/lib/utildebug/src/main/java/com/blankj/utildebug/menu/ReminderView.java
@@ -0,0 +1,43 @@
+package com.blankj.utildebug.menu;
+
+import android.widget.Switch;
+
+import com.blankj.utildebug.R;
+import com.blankj.utildebug.base.view.BaseContentFloatView;
+import com.blankj.utildebug.config.DebugConfig;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/09/10
+ *     desc  :
+ * </pre>
+ */
+public class ReminderView extends BaseContentFloatView<ReminderView> {
+
+    private Switch reminderNoMoreSwitch;
+
+    @Override
+    public int bindTitle() {
+        return R.string.du_reminder;
+    }
+
+    @Override
+    public int bindContentLayout() {
+        return R.layout.du_reminder_view;
+    }
+
+    @Override
+    public void initContentView() {
+        reminderNoMoreSwitch = findViewById(R.id.reminderNoMoreSwitch);
+    }
+
+    @Override
+    public void dismiss() {
+        super.dismiss();
+        if (reminderNoMoreSwitch.isChecked()) {
+            DebugConfig.saveNoMoreReminder();
+        }
+    }
+}
diff --git a/lib/utildebug/src/main/res/anim/float_in.xml b/lib/utildebug/src/main/res/anim/float_in.xml
new file mode 100755
index 0000000000..c9961aee12
--- /dev/null
+++ b/lib/utildebug/src/main/res/anim/float_in.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shareInterpolator="false">
+    <scale
+        android:duration="220"
+        android:fromXScale="0.9"
+        android:fromYScale="0.9"
+        android:interpolator="@android:interpolator/decelerate_quint"
+        android:pivotX="50%"
+        android:pivotY="100%"
+        android:toXScale="1.0"
+        android:toYScale="1.0" />
+    <alpha
+        android:duration="150"
+        android:fromAlpha="0.0"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:toAlpha="1.0" />
+</set>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/anim/float_out.xml b/lib/utildebug/src/main/res/anim/float_out.xml
new file mode 100755
index 0000000000..717d2c071d
--- /dev/null
+++ b/lib/utildebug/src/main/res/anim/float_out.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shareInterpolator="false">
+    <scale
+        android:duration="220"
+        android:fromXScale="1.0"
+        android:fromYScale="1.0"
+        android:interpolator="@android:interpolator/decelerate_quint"
+        android:pivotX="50%"
+        android:pivotY="100%"
+        android:toXScale="0.9"
+        android:toYScale="0.9" />
+    <alpha
+        android:duration="150"
+        android:fromAlpha="1.0"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:toAlpha="0.0" />
+</set>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_app_info_default.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_app_info_default.png
new file mode 100644
index 0000000000..9abb436a9d
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_app_info_default.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_clear_cache.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_clear_cache.png
new file mode 100644
index 0000000000..b4d106f094
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_clear_cache.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_clear_storage.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_clear_storage.png
new file mode 100644
index 0000000000..055bb00cad
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_clear_storage.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_device_info.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_device_info.png
new file mode 100644
index 0000000000..fa4cbd45d5
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_device_info.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_file_explorer.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_file_explorer.png
new file mode 100644
index 0000000000..2571be1241
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_file_explorer.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_logcat.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_logcat.png
new file mode 100644
index 0000000000..e609a564d1
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_logcat.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_restart_app.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_restart_app.png
new file mode 100644
index 0000000000..9cb94528b0
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_debug_restart_app.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_icon_default.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_icon_default.png
new file mode 100644
index 0000000000..53f214b447
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_icon_default.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_default.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_default.png
new file mode 100644
index 0000000000..aa18f34cf7
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_default.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_sp.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_sp.png
new file mode 100644
index 0000000000..23033d35be
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_sp.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_utf8.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_utf8.png
new file mode 100644
index 0000000000..6213126399
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_file_utf8.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_go.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_go.png
new file mode 100644
index 0000000000..e6ed732041
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_item_go.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_reminder.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_reminder.png
new file mode 100644
index 0000000000..880972e5ff
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_reminder.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_swipe_back.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_swipe_back.png
new file mode 100644
index 0000000000..b0b4bf36b3
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_swipe_back.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_swipe_refresh.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_swipe_refresh.png
new file mode 100644
index 0000000000..0976a3083b
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_swipe_refresh.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_title_bar_adjustable.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_title_bar_adjustable.png
new file mode 100644
index 0000000000..46c2a61d57
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_title_bar_adjustable.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_title_bar_close.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_title_bar_close.png
new file mode 100644
index 0000000000..8c3c953e97
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_title_bar_close.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_error.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_error.png
new file mode 100644
index 0000000000..d74b0b22c0
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_error.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_success.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_success.png
new file mode 100644
index 0000000000..8af134eef5
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_success.png differ
diff --git a/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_warn.png b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_warn.png
new file mode 100644
index 0000000000..1905b562ec
Binary files /dev/null and b/lib/utildebug/src/main/res/drawable-xxhdpi/du_ic_toast_warn.png differ
diff --git a/lib/utildebug/src/main/res/drawable/du_rotate_refresh.xml b/lib/utildebug/src/main/res/drawable/du_rotate_refresh.xml
new file mode 100644
index 0000000000..5b905178c4
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_rotate_refresh.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rotate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:drawable="@drawable/du_ic_swipe_refresh"
+    android:fromDegrees="0"
+    android:pivotX="50%"
+    android:pivotY="50%"
+    android:toDegrees="360"
+    android:visible="true" />
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_sel_et_bg.xml b/lib/utildebug/src/main/res/drawable/du_sel_et_bg.xml
new file mode 100644
index 0000000000..4b515d8659
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_sel_et_bg.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true">
+        <shape android:shape="rectangle">
+            <corners android:radius="8dp" />
+            <stroke android:width="1dp" android:color="@color/darkGray" />
+        </shape>
+    </item>
+
+    <item>
+        <shape android:shape="rectangle">
+            <corners android:radius="8dp" />
+            <stroke android:width="1dp" android:color="@color/mediumGrayDark" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_base_float_bg.xml b/lib/utildebug/src/main/res/drawable/du_shape_base_float_bg.xml
new file mode 100644
index 0000000000..5943aeceeb
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_base_float_bg.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="8dp" />
+    <solid android:color="@color/mediumGray" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_adjust_bg.xml b/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_adjust_bg.xml
new file mode 100644
index 0000000000..024af6887c
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_adjust_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="16dp" />
+    <solid android:color="@color/loveGreen" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_bg.xml b/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_bg.xml
new file mode 100644
index 0000000000..fc9efdc1da
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_bg.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners 
+        android:bottomLeftRadius="8dp"
+        android:bottomRightRadius="8dp"/>
+    <solid android:color="@color/mediumGray" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_close_bg.xml b/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_close_bg.xml
new file mode 100644
index 0000000000..5ca17c706d
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_base_float_title_close_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="16dp" />
+    <solid android:color="@color/grapefruit" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_btn.xml b/lib/utildebug/src/main/res/drawable/du_shape_btn.xml
new file mode 100644
index 0000000000..3a57f3f0e0
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_btn.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="4dp" />
+    <solid android:color="@color/lightGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_divider.xml b/lib/utildebug/src/main/res/drawable/du_shape_divider.xml
new file mode 100755
index 0000000000..f78ca79b95
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_divider.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <size android:height="1px" />
+    <solid android:color="@color/mediumGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_file_divider.xml b/lib/utildebug/src/main/res/drawable/du_shape_file_divider.xml
new file mode 100755
index 0000000000..addd375d5f
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_file_divider.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:left="52dp">
+        <shape android:shape="rectangle">
+            <size android:height="1px" />
+            <solid android:color="@color/mediumGrayDark" />
+        </shape>
+    </item>
+</layer-list>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_input_bg.xml b/lib/utildebug/src/main/res/drawable/du_shape_input_bg.xml
new file mode 100644
index 0000000000..3a57f3f0e0
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_input_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="4dp" />
+    <solid android:color="@color/lightGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_item_menu_bg.xml b/lib/utildebug/src/main/res/drawable/du_shape_item_menu_bg.xml
new file mode 100644
index 0000000000..7cc087d9e8
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_item_menu_bg.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="4dp" />
+    <solid android:color="@color/lightGray" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_positive_btn.xml b/lib/utildebug/src/main/res/drawable/du_shape_positive_btn.xml
new file mode 100644
index 0000000000..1e29fe5d0f
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_positive_btn.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="4dp" />
+    <solid android:color="@color/loveGreen" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_shadow.xml b/lib/utildebug/src/main/res/drawable/du_shape_shadow.xml
new file mode 100644
index 0000000000..3d0415b8e0
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_shadow.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient
+        android:angle="270"
+        android:endColor="#37000000"
+        android:startColor="#03000000" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_shape_toast.xml b/lib/utildebug/src/main/res/drawable/du_shape_toast.xml
new file mode 100644
index 0000000000..8c597a6de2
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_shape_toast.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="16dp" />
+    <solid android:color="@color/lightGrayDark" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_switch_thumb.xml b/lib/utildebug/src/main/res/drawable/du_switch_thumb.xml
new file mode 100644
index 0000000000..4d15fadb05
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_switch_thumb.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+    <solid android:color="@color/lightGrayDark" />
+    <stroke
+        android:width="2dp"
+        android:color="@android:color/transparent" />
+    <size
+        android:width="20dp"
+        android:height="20dp" />
+</shape>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/drawable/du_switch_track.xml b/lib/utildebug/src/main/res/drawable/du_switch_track.xml
new file mode 100644
index 0000000000..3ee1b4dd6e
--- /dev/null
+++ b/lib/utildebug/src/main/res/drawable/du_switch_track.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:state_checked="true">
+        <shape android:shape="rectangle">
+            <solid android:color="@color/loveGreen" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+
+    <item android:state_checked="false">
+        <shape android:shape="rectangle">
+            <solid android:color="@color/mediumGrayDark" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_base_content_float.xml b/lib/utildebug/src/main/res/layout/du_base_content_float.xml
new file mode 100644
index 0000000000..9380648980
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_base_content_float.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?><!--RelativeLayout-->
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
+        android:id="@+id/bcfRootLayout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="@drawable/du_shape_base_float_bg"
+        android:orientation="vertical">
+
+        <com.blankj.swipepanel.SwipePanel
+            android:id="@+id/bcfSwipePanel"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            app:isTopCenter="true"
+            app:isTopEnabled="false"
+            app:leftDrawable="@drawable/du_ic_swipe_back"
+            app:leftEdgeSize="20dp"
+            app:leftSwipeColor="@color/darkGray"
+            app:topDrawable="@drawable/du_rotate_refresh"
+            app:topEdgeSize="500dp"
+            app:topSwipeColor="@color/darkGray">
+
+        </com.blankj.swipepanel.SwipePanel>
+
+        <View
+            android:layout_width="match_parent"
+            android:layout_height="4dp"
+            android:background="@drawable/du_shape_shadow" />
+
+        <RelativeLayout
+            android:id="@+id/bcfTitleRl"
+            android:layout_width="match_parent"
+            android:layout_height="32dp"
+            android:background="@drawable/du_shape_base_float_title_bg"
+            android:paddingLeft="8dp"
+            android:paddingTop="4dp"
+            android:paddingRight="8dp"
+            android:paddingBottom="4dp">
+
+            <ImageView
+                android:id="@+id/bcfCloseIv"
+                android:layout_width="40dp"
+                android:layout_height="24dp"
+                android:layout_centerVertical="true"
+                android:background="@drawable/du_shape_base_float_title_close_bg"
+                android:src="@drawable/du_ic_title_bar_close" />
+
+            <TextView
+                android:id="@+id/bcfTitleTv"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_centerVertical="true"
+                android:layout_marginLeft="8dp"
+                android:layout_marginRight="8dp"
+                android:layout_toLeftOf="@id/bcfAdjustIv"
+                android:layout_toRightOf="@id/bcfCloseIv"
+                android:ellipsize="end"
+                android:gravity="center"
+                android:maxLines="1"
+                android:textColor="@color/darkGrayDark"
+                android:textSize="@dimen/font_big"
+                android:textStyle="bold"
+                tools:text="title" />
+
+            <ImageView
+                android:id="@+id/bcfAdjustIv"
+                android:layout_width="40dp"
+                android:layout_height="24dp"
+                android:layout_alignParentRight="true"
+                android:layout_centerVertical="true"
+                android:background="@drawable/du_shape_base_float_title_adjust_bg"
+                android:src="@drawable/du_ic_title_bar_adjustable" />
+
+        </RelativeLayout>
+
+    </LinearLayout>
+</merge>
diff --git a/lib/utildebug/src/main/res/layout/du_debug_app_info.xml b/lib/utildebug/src/main/res/layout/du_debug_app_info.xml
new file mode 100644
index 0000000000..f6aa91c1d9
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_app_info.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/appInfoRv"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:overScrollMode="never" />
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_debug_device_info.xml b/lib/utildebug/src/main/res/layout/du_debug_device_info.xml
new file mode 100644
index 0000000000..60f6535014
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_device_info.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/deviceInfoRv"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:overScrollMode="never" />
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_debug_file_explorer.xml b/lib/utildebug/src/main/res/layout/du_debug_file_explorer.xml
new file mode 100644
index 0000000000..d3228afb1c
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_file_explorer.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <com.blankj.utildebug.base.view.SearchEditText
+        android:id="@+id/fileExplorerSearchEt"
+        style="@style/InputStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="12dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginRight="12dp"
+        android:hint="@string/du_search_tips"
+        tools:text="hello" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/fileExplorerRv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/fileExplorerSearchEt"
+        android:layout_marginTop="8dp"
+        android:overScrollMode="never" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_debug_file_explorer_image.xml b/lib/utildebug/src/main/res/layout/du_debug_file_explorer_image.xml
new file mode 100644
index 0000000000..49936dad10
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_file_explorer_image.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_margin="8dp">
+
+    <com.github.chrisbanes.photoview.PhotoView
+        android:id="@+id/imageViewerPv"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_debug_file_explorer_sp.xml b/lib/utildebug/src/main/res/layout/du_debug_file_explorer_sp.xml
new file mode 100644
index 0000000000..d5e4dc3a36
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_file_explorer_sp.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="8dp">
+
+    <TextView
+        android:id="@+id/spViewTitle"
+        style="@style/InfoTitleStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="16dp"
+        android:layout_marginRight="16dp"
+        tools:text="title" />
+
+    <com.blankj.utildebug.base.view.SearchEditText
+        android:id="@+id/spViewSearchEt"
+        style="@style/InputStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/spViewTitle"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginRight="8dp"
+        android:hint="@string/du_search_tips"
+        tools:text="hello" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/spViewRv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/spViewSearchEt"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginRight="8dp"
+        android:overScrollMode="never" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_debug_file_explorer_sp_modify.xml b/lib/utildebug/src/main/res/layout/du_debug_file_explorer_sp_modify.xml
new file mode 100644
index 0000000000..bb13fadb98
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_file_explorer_sp_modify.xml
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="8dp">
+
+    <TextView
+        android:id="@+id/spModifyTitleTv"
+        style="@style/InfoTitleStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="16dp"
+        android:layout_marginRight="16dp"
+        tools:text="title" />
+
+    <com.blankj.utildebug.base.view.FloatEditText
+        android:id="@+id/spModifyEt"
+        style="@style/InputStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/spModifyTitleTv"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginRight="8dp"
+        android:hint="@string/du_search_tips"
+        tools:text="hello" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/spModifyEt"
+        android:layout_margin="8dp"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/spModifyCancelTv"
+            style="@style/InfoContentStyle"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginRight="4dp"
+            android:layout_weight="1"
+            android:background="@drawable/du_shape_btn"
+            android:gravity="center"
+            android:padding="4dp"
+            android:text="@string/du_cancel"
+            android:textColor="@color/darkGrayDark"
+            android:textSize="@dimen/font_normal" />
+
+        <TextView
+            android:id="@+id/spModifyYesTv"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="4dp"
+            android:layout_weight="1"
+            android:background="@drawable/du_shape_btn"
+            android:gravity="center"
+            android:padding="4dp"
+            android:text="@string/du_confirm"
+            android:textColor="@color/loveGreenDark"
+            android:textSize="@dimen/font_normal" />
+
+    </LinearLayout>
+
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_debug_icon.xml b/lib/utildebug/src/main/res/layout/du_debug_icon.xml
new file mode 100644
index 0000000000..9d3118ef3a
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_icon.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--parent type is RelativeLayout-->
+
+    <ImageView
+        android:id="@+id/debugIconIv"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:src="@drawable/du_ic_icon_default" />
+
+</merge>
diff --git a/lib/utildebug/src/main/res/layout/du_debug_menu.xml b/lib/utildebug/src/main/res/layout/du_debug_menu.xml
new file mode 100644
index 0000000000..4f883477a4
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_debug_menu.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/debugMenuRv"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:overScrollMode="never" />
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_float_toast.xml b/lib/utildebug/src/main/res/layout/du_float_toast.xml
new file mode 100644
index 0000000000..fd53d7bcac
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_float_toast.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@drawable/du_shape_toast"
+    android:gravity="center"
+    android:paddingLeft="16dp"
+    android:paddingTop="8dp"
+    android:paddingRight="16dp"
+    android:paddingBottom="8dp">
+
+    <ImageView
+        android:id="@+id/toastIconIv"
+        android:layout_width="32dp"
+        android:layout_height="32dp"
+        android:layout_marginRight="8dp"
+        android:padding="4dp"
+        tools:src="@drawable/du_ic_toast_warn" />
+
+    <TextView
+        android:id="@+id/toastMsgTv"
+        style="@style/InfoTitleStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:text="Toast Msg" />
+
+
+</LinearLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_item_base_info.xml b/lib/utildebug/src/main/res/layout/du_item_base_info.xml
new file mode 100644
index 0000000000..6f8058b054
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_item_base_info.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="12dp"
+    android:paddingTop="8dp"
+    android:paddingRight="12dp"
+    android:paddingBottom="8dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_toLeftOf="@id/baseInfoGoIv"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/baseInfoTitleTv"
+            style="@style/InfoTitleStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            tools:text="title" />
+
+        <com.blankj.utildebug.base.view.EmptyGoneTextView
+            android:id="@+id/baseInfoContentTv"
+            style="@style/InfoContentStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="2dp"
+            tools:text="content" />
+
+    </LinearLayout>
+
+    <ImageView
+        android:id="@+id/baseInfoGoIv"
+        android:layout_width="32dp"
+        android:layout_height="32dp"
+        android:layout_alignParentRight="true"
+        android:layout_centerVertical="true"
+        android:padding="8dp"
+        android:src="@drawable/du_ic_item_go"
+        android:visibility="gone" />
+
+    <Switch
+        android:id="@+id/baseInfoSwitch"
+        style="@style/SwitchStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentRight="true"
+        android:layout_centerVertical="true"
+        android:visibility="gone" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_item_empty.xml b/lib/utildebug/src/main/res/layout/du_item_empty.xml
new file mode 100644
index 0000000000..cfe7154b3b
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_item_empty.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:text="Empty"
+        android:textColor="@color/darkGrayDark"
+        android:textSize="@dimen/font_large" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_item_file.xml b/lib/utildebug/src/main/res/layout/du_item_file.xml
new file mode 100644
index 0000000000..faa760002f
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_item_file.xml
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.blankj.utildebug.base.view.SwipeRightMenu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_vertical">
+
+    <RelativeLayout
+        android:id="@+id/fileContentRl"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingLeft="12dp"
+        android:paddingTop="8dp"
+        android:paddingRight="12dp"
+        android:paddingBottom="8dp">
+
+        <ImageView
+            android:id="@+id/fileTypeIv"
+            android:layout_width="32dp"
+            android:layout_height="32dp"
+            android:layout_centerVertical="true"
+            android:layout_marginRight="8dp"
+            tools:src="@drawable/du_ic_debug_file_explorer" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:layout_toRightOf="@id/fileTypeIv"
+            android:orientation="vertical">
+
+            <TextView
+                android:id="@+id/fileNameTv"
+                style="@style/InfoTitleStyle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:ellipsize="end"
+                android:maxLines="1"
+                tools:text="title" />
+
+            <TextView
+                android:id="@+id/fileInfoTv"
+                style="@style/InfoContentStyle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="2dp"
+                tools:text="content" />
+
+        </LinearLayout>
+
+    </RelativeLayout>
+
+    <TextView
+        android:id="@+id/fileMenuDeleteTv"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginRight="-200dp"
+        android:background="@color/grapefruit"
+        android:gravity="center"
+        android:paddingLeft="8dp"
+        android:paddingRight="8dp"
+        android:text="@string/du_menu_delete"
+        android:textColor="@color/white"
+        android:textSize="@dimen/font_normal" />
+
+</com.blankj.utildebug.base.view.SwipeRightMenu>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_item_menu.xml b/lib/utildebug/src/main/res/layout/du_item_menu.xml
new file mode 100644
index 0000000000..ede9fd7e53
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_item_menu.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginLeft="12dp"
+    android:layout_marginTop="8dp"
+    android:layout_marginRight="12dp"
+    android:layout_marginBottom="16dp"
+    android:background="@drawable/du_shape_item_menu_bg"
+    android:elevation="18dp"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/menuCategory"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:singleLine="true"
+        android:textColor="@color/darkGrayDark"
+        android:textSize="@dimen/font_normal"
+        android:textStyle="bold"
+        tools:text="title" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/menuRv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:layout_marginBottom="8dp"
+        android:overScrollMode="never" />
+</LinearLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_item_menu_item.xml b/lib/utildebug/src/main/res/layout/du_item_menu_item.xml
new file mode 100644
index 0000000000..2731f838ba
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_item_menu_item.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_horizontal"
+    android:orientation="vertical"
+    android:paddingTop="4dp"
+    android:paddingBottom="4dp">
+
+    <ImageView
+        android:id="@+id/menuItemIconIv"
+        android:layout_width="44dp"
+        android:layout_height="44dp"
+        android:padding="8dp"
+        tools:src="@drawable/du_ic_icon_default" />
+
+    <TextView
+        android:id="@+id/menuItemNameTv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        android:gravity="center"
+        android:singleLine="true"
+        android:textColor="@color/darkGrayDark"
+        android:textSize="@dimen/font_small"
+        tools:text="name" />
+</LinearLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_item_sp.xml b/lib/utildebug/src/main/res/layout/du_item_sp.xml
new file mode 100644
index 0000000000..edcd902e3a
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_item_sp.xml
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.blankj.utildebug.base.view.SwipeRightMenu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_vertical">
+
+    <RelativeLayout
+        android:id="@+id/itemSpContentRl"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:layout_toLeftOf="@id/itemSpGoIv"
+            android:orientation="vertical">
+
+            <TextView
+                android:id="@+id/itemSpTitleTv"
+                style="@style/InfoTitleStyle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                tools:text="title" />
+
+            <com.blankj.utildebug.base.view.EmptyGoneTextView
+                android:id="@+id/itemSpContentTv"
+                style="@style/InfoContentStyle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="2dp"
+                tools:text="content" />
+
+        </LinearLayout>
+
+        <ImageView
+            android:id="@+id/itemSpGoIv"
+            android:layout_width="32dp"
+            android:layout_height="32dp"
+            android:layout_alignParentRight="true"
+            android:layout_centerVertical="true"
+            android:padding="8dp"
+            android:src="@drawable/du_ic_item_go"
+            android:visibility="gone" />
+
+        <Switch
+            android:id="@+id/itemSpSwitch"
+            style="@style/SwitchStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentRight="true"
+            android:layout_centerVertical="true"
+            android:visibility="gone" />
+
+    </RelativeLayout>
+
+    <TextView
+        android:id="@+id/itemSpDeleteTv"
+        android:layout_width="100dp"
+        android:layout_height="match_parent"
+        android:background="@color/grapefruit"
+        android:gravity="center"
+        android:text="@string/du_menu_delete"
+        android:textColor="@color/white"
+        android:textSize="@dimen/font_normal" />
+
+</com.blankj.utildebug.base.view.SwipeRightMenu>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/layout/du_reminder_view.xml b/lib/utildebug/src/main/res/layout/du_reminder_view.xml
new file mode 100644
index 0000000000..4327ae2b0a
--- /dev/null
+++ b/lib/utildebug/src/main/res/layout/du_reminder_view.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <ImageView
+        android:layout_width="32dp"
+        android:layout_height="32dp"
+        android:src="@drawable/du_ic_reminder" />
+
+    <TextView
+        style="@style/InfoTitleStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:gravity="center"
+        android:text="@string/du_reminder_content" />
+
+    <Switch
+        android:id="@+id/reminderNoMoreSwitch"
+        style="@style/SwitchStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="4dp"
+        android:checked="true"
+        android:switchPadding="8dp"
+        android:text="@string/du_reminder_no_more"
+        android:textColor="@color/darkGray"
+        android:textSize="@dimen/font_small" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/values-zh-rCN/strings.xml b/lib/utildebug/src/main/res/values-zh-rCN/strings.xml
new file mode 100644
index 0000000000..eb1be9ee32
--- /dev/null
+++ b/lib/utildebug/src/main/res/values-zh-rCN/strings.xml
@@ -0,0 +1,57 @@
+<resources>
+
+    <string name="du_menus">菜单</string>
+    <string name="du_tools">常用工具</string>
+    <string name="du_performance">性能监控</string>
+    <string name="du_ui">视觉工具</string>
+    <string name="du_biz">业务工具</string>
+    <string name="du_uncategorized">未归类</string>
+
+    <string name="de_permission_tips">请授权「显示在其他应用上层」的权限。</string>
+    <string name="du_adjust_tips">拖动按钮以调整窗口的高度。</string>
+    <string name="du_search_tips">输入想要过滤的关键字</string>
+    <string name="du_reminder">温馨提示</string>
+    <string name="du_reminder_content">拖动标题栏以移动窗口。\n双击标题栏以切换窗口的透明度。</string>
+    <string name="du_reminder_no_more">下次不再提示</string>
+    <string name="du_cancel">取消</string>
+    <string name="du_confirm">确认</string>
+
+    <string name="du_menu_delete">删除</string>
+    <string name="du_menu_rename">重命名</string>
+
+    <!--App Info-->
+    <string name="du_app_info">应用信息</string>
+    <string name="du_app_info_pkg_name">包名</string>
+    <string name="du_app_info_version_name">版本名</string>
+    <string name="du_app_info_version_code">版本号</string>
+    <string name="du_app_info_min_sdk_version">支持最低系统版本号</string>
+    <string name="du_app_info_target_sdk_version">目标系统版本号</string>
+    <string name="du_app_info_open_app_info_page">跳转应用信息页</string>
+
+    <!--Device Info-->
+    <string name="du_device_info">设备信息</string>
+    <string name="du_device_info_name">名称</string>
+    <string name="du_device_info_android_version">系统版本</string>
+    <string name="du_device_info_adb_enabled">ADB 是否开启</string>
+    <string name="du_device_info_support_abis">支持的 ABIs</string>
+    <string name="du_device_info_screen_info">屏幕信息</string>
+    <string name="du_device_info_open_development_settings_page">跳转开发者选项页</string>
+
+    <!--File Explorer-->
+    <string name="du_file_explorer">沙盒浏览</string>
+    <string name="du_file_item_num">%1$d 项</string>
+
+    <!--Logcat-->
+    <string name="du_logcat">日志抓取</string>
+
+    <!--Restart-->
+    <string name="du_restart_app">重启应用</string>
+
+    <!--Clear Storage-->
+    <string name="du_clear_storage">清除数据</string>
+
+    <!--Clear Cache-->
+    <string name="du_clear_cache">清除缓存</string>
+
+
+</resources>
diff --git a/lib/utildebug/src/main/res/values/colors.xml b/lib/utildebug/src/main/res/values/colors.xml
new file mode 100644
index 0000000000..99586a15ae
--- /dev/null
+++ b/lib/utildebug/src/main/res/values/colors.xml
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimaryOrigin">#3F51B5</color>
+    <color name="colorPrimaryDarkOrigin">#303F9F</color>
+    <color name="colorAccentOrigin">#FF4081</color>
+
+    <color name="colorPrimary">#34A48E</color>
+    <color name="colorPrimaryHalfTrans">#8034A48E</color>
+    <color name="colorPrimaryDark">#245C50</color>
+    <color name="colorAccent">#FF73A3</color>
+    <color name="colorAccentHalfTrans">#80245C50</color>
+
+    <color name="white">#FFFFFF</color>
+    <color name="light_black">#191919</color>
+
+    <color name="rainbow_red">#bf0c43</color>
+    <color name="rainbow_yellow">#f9ba15</color>
+    <color name="rainbow_green">#8eac00</color>
+    <color name="rainbow_blue">#127a97</color>
+    <color name="rainbow_purple">#452b72</color>
+
+    <!--beautiful color-->
+    <color name="grapefruit">#ED5565</color>
+    <color name="grapefruitDark">#DA4453</color>
+
+    <color name="bittersweet">#FC6E51</color>
+    <color name="bittersweetDark">#E9573F</color>
+
+    <color name="sunflower">#FFCE54</color>
+    <color name="sunflowerDark">#F6BB42</color>
+
+    <color name="grass">#A0D468</color>
+    <color name="grassDark">#8CC152</color>
+
+    <color name="mint">#48CFAD</color>
+    <color name="mintDark">#37BC9B</color>
+
+    <color name="loveGreen">#62C554</color>
+    <color name="loveGreenDark">#479841</color>
+
+    <color name="aqua">#4FC1E9</color>
+    <color name="aquaDark">#3BAFDA</color>
+
+    <color name="blueJeans">#5D9CEC</color>
+    <color name="blueJeansDark">#4A89DC</color>
+
+    <color name="lavander">#AC92EC</color>
+    <color name="lavanderDark">#967ADC</color>
+
+    <color name="pinkRose">#EC87C0</color>
+    <color name="pinkRoseDark">#D770AD</color>
+
+    <color name="lightGray">#F5F7FA</color>
+    <color name="lightGrayDark">#E6E9ED</color>
+
+    <color name="mediumGray">#CCD1D9</color>
+    <color name="mediumGrayDark">#AAB2BD</color>
+
+    <color name="darkGray">#656D78</color>
+    <color name="darkGrayDark">#434A54</color>
+
+</resources>
diff --git a/lib/utildebug/src/main/res/values/dimens.xml b/lib/utildebug/src/main/res/values/dimens.xml
new file mode 100644
index 0000000000..769f9d7ead
--- /dev/null
+++ b/lib/utildebug/src/main/res/values/dimens.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="font_huge">22dp</dimen>
+    <dimen name="font_large">20dp</dimen>
+    <dimen name="font_big">18dp</dimen>
+    <dimen name="font_normal">16dp</dimen>
+    <dimen name="font_small">14dp</dimen>
+    <dimen name="font_mini">12dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/values/ids.xml b/lib/utildebug/src/main/res/values/ids.xml
new file mode 100644
index 0000000000..240337973d
--- /dev/null
+++ b/lib/utildebug/src/main/res/values/ids.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <item name="baseFloatView" type="id" />
+    <item name="baseContentView" type="id" />
+</resources>
\ No newline at end of file
diff --git a/lib/utildebug/src/main/res/values/strings.xml b/lib/utildebug/src/main/res/values/strings.xml
new file mode 100644
index 0000000000..4ab8e99035
--- /dev/null
+++ b/lib/utildebug/src/main/res/values/strings.xml
@@ -0,0 +1,57 @@
+<resources>
+
+    <string name="du_menus">Menus</string>
+    <string name="du_tools">Tools</string>
+    <string name="du_performance">Performance</string>
+    <string name="du_ui">UI</string>
+    <string name="du_biz">Business</string>
+    <string name="du_uncategorized">Uncategorized</string>
+
+    <string name="de_permission_tips">DebugUtils need draw over other app permission.</string>
+    <string name="du_adjust_tips">Drag the button to adjust the height of the window.</string>
+    <string name="du_search_tips">Enter the keywords you want to filter.</string>
+    <string name="du_reminder">Reminder</string>
+    <string name="du_reminder_content">Drag the title bar to move the window.\nDouble click the title bar to toggle the transparent of window.</string>
+    <string name="du_reminder_no_more">No more prompts next time.</string>
+    <string name="du_cancel">Cancel</string>
+    <string name="du_confirm">Confirm</string>
+
+    <string name="du_menu_delete">Delete</string>
+    <string name="du_menu_rename">Rename</string>
+
+    <!--App Info-->
+    <string name="du_app_info">App Info</string>
+    <string name="du_app_info_pkg_name">Package Name</string>
+    <string name="du_app_info_version_name">Version Name</string>
+    <string name="du_app_info_version_code">Version Code</string>
+    <string name="du_app_info_min_sdk_version">Min SDK Version</string>
+    <string name="du_app_info_target_sdk_version">Target SDK Version</string>
+    <string name="du_app_info_open_app_info_page">Open App Info Page</string>
+
+    <!--Device Info-->
+    <string name="du_device_info">Device Info</string>
+    <string name="du_device_info_name">Name</string>
+    <string name="du_device_info_android_version">Android Version</string>
+    <string name="du_device_info_adb_enabled">ADB Enabled</string>
+    <string name="du_device_info_support_abis">Support ABIs</string>
+    <string name="du_device_info_screen_info">Screen Info</string>
+    <string name="du_device_info_open_development_settings_page">Open Development Settings Page</string>
+
+    <!--File Explorer-->
+    <string name="du_file_explorer">File Explorer</string>
+    <string name="du_file_item_num">%1$d items</string>
+
+    <!--Logcat-->
+    <string name="du_logcat">Logcat</string>
+
+    <!--Restart App-->
+    <string name="du_restart_app">Restart App</string>
+
+    <!--Clear Storage-->
+    <string name="du_clear_storage">Clear Storage</string>
+
+    <!--Clear Cache-->
+    <string name="du_clear_cache">Clear Cache</string>
+
+
+</resources>
diff --git a/lib/utildebug/src/main/res/values/styles.xml b/lib/utildebug/src/main/res/values/styles.xml
new file mode 100644
index 0000000000..d16a26cead
--- /dev/null
+++ b/lib/utildebug/src/main/res/values/styles.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="FloatAnimation">
+        <item name="android:windowEnterAnimation">@anim/float_in</item>
+        <item name="android:windowExitAnimation">@anim/float_out</item>
+    </style>
+
+    <style name="InfoTitleStyle">
+        <item name="android:textColor">@color/darkGrayDark</item>
+        <item name="android:textSize">@dimen/font_normal</item>
+    </style>
+
+    <style name="InfoContentStyle">
+        <item name="android:textColor">@color/darkGray</item>
+        <item name="android:textSize">@dimen/font_small</item>
+    </style>
+
+    <style name="InputStyle" parent="InfoContentStyle">
+        <item name="android:background">@drawable/du_shape_input_bg</item>
+        <item name="android:elevation">2dp</item>
+        <item name="android:inputType">text</item>
+        <item name="android:maxLines">1</item>
+        <item name="android:paddingLeft">12dp</item>
+        <item name="android:paddingTop">8dp</item>
+        <item name="android:paddingRight">12dp</item>
+        <item name="android:paddingBottom">8dp</item>
+        <item name="android:textColor">@color/darkGrayDark</item>
+        <item name="android:textCursorDrawable">@null</item>
+        <item name="android:textSize">@dimen/font_normal</item>
+    </style>
+
+    <style name="SwitchStyle">
+        <item name="android:thumb">@drawable/du_switch_thumb</item>
+        <item name="android:track">@drawable/du_switch_track</item>
+        <item name="android:background">@android:color/transparent</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/module_config.gradle b/module_config.gradle
new file mode 100644
index 0000000000..6be8429bd7
--- /dev/null
+++ b/module_config.gradle
@@ -0,0 +1,72 @@
+import groovy.json.JsonSlurper
+
+/**
+ * 在 module_config.json 中 根据 appConfig 和 pkgConfig 来 include 本地模块
+ * 可以考虑写成插件来更方便 apply
+ */
+
+def json = new JsonSlurper().parse(file("./module_config.json"))
+
+for (def module in json.moduleConfig) {
+    String moduleName = module.name
+
+    if (moduleName == "feature_mock") {
+        if (json.pkgConfig.isEmpty()) {
+            module.isApply = false
+        }
+    } else if (moduleName.endsWith("_app")) {
+        if (!json.appConfig.contains(moduleName)) {
+            module.isApply = false
+        }
+    } else if (moduleName.endsWith("_pkg")) {
+        if (!json.pkgConfig.isEmpty()) {
+            if (!json.pkgConfig.contains(moduleName)) {
+                module.isApply = false
+            }
+        }
+    }
+
+    if (module.useLocal && module.isApply) {
+        include moduleName
+        project(":$moduleName").projectDir = file(module.localPath)
+    }
+}
+
+def ls = System.getProperty("line.separator")
+
+List<String> modules = []
+for (def module in json.moduleConfig) {
+    String name = module.name
+    boolean isApply = module.isApply
+    boolean useLocal = module.useLocal
+    String localPath = module.localPath
+    String remotePath = module.remotePath
+    if (localPath != null) localPath = "\"$localPath\""
+    if (remotePath != null) remotePath = "\"$remotePath\""
+    modules.add(String.format("%-12s%-27s: new ModuleConfig(isApply: %-5s, useLocal: %-5s, localPath: $localPath%s),",
+            "", name, isApply, useLocal, remotePath == null ? "" : ", remotePath: $remotePath"))
+}
+
+def configFile = file('./buildSrc/src/main/groovy/Config.groovy')
+def lines = configFile.readLines("utf8")
+def configContent = new StringBuilder()
+
+boolean enterNeverFlag = false
+for (def line : lines) {
+    if (enterNeverFlag) {
+        if (line.contains("/*Don't delete this line*/")) {
+            configContent.append(ls).append(line)
+            enterNeverFlag = false
+        }
+        continue
+    }
+    configContent.append(ls).append(line)
+    if (line.contains("/*Don't delete this line*/")) {
+        configContent.append(ls).append(String.format("%-12s/*Generated by \"module_config.json\"*/", ""))
+        enterNeverFlag = true
+        for (String m : modules) {
+            configContent.append(ls).append(m)
+        }
+    }
+}
+configFile.write(configContent.substring(ls.length()).toString())
\ No newline at end of file
diff --git a/module_config.json b/module_config.json
new file mode 100644
index 0000000000..87233122b9
--- /dev/null
+++ b/module_config.json
@@ -0,0 +1,30 @@
+{
+  "desc": "提交 git 时需要检查下配置是否正确！！！",
+  "appConfigDesc": "appConfig 配置的是可以跑 app 的模块",
+  "appConfig": ["feature_launcher_app"],
+  "pkgConfigDesc": "pkgConfig 配置的是要依赖的功能包，为空则依赖全部",
+  "pkgConfig": [],
+  "moduleConfigDesc": "moduleConfig 配置的是使用本地还是仓库，优先级低于 appConfig 和 pkgConfig",
+  "moduleConfig": [
+    {"name": "plugin_api_gradle_plugin",  "isApply": true, "useLocal": true, "localPath": "./plugin/api-gradle-plugin"},
+    {"name": "plugin_bus_gradle_plugin",  "isApply": true, "useLocal": true, "localPath": "./plugin/bus-gradle-plugin"},
+    {"name": "plugin_lib_base_transform", "isApply": true, "useLocal": true, "localPath": "./plugin/lib/base-transform", "remotePath": "com.blankj:base-transform:1.0"},
+    {"name": "plugin_buildSrc_plugin",    "isApply": true, "useLocal": true, "localPath": "./plugin/buildSrc-plugin"},
+    {"name": "feature_mock",              "isApply": true, "useLocal": true, "localPath": "./feature/mock"},
+    {"name": "feature_launcher_app",      "isApply": true, "useLocal": true, "localPath": "./feature/launcher/app"},
+    {"name": "feature_main_app",          "isApply": true, "useLocal": true, "localPath": "./feature/main/app"},
+    {"name": "feature_main_pkg",          "isApply": true, "useLocal": true, "localPath": "./feature/main/pkg"},
+    {"name": "feature_subutil_app",       "isApply": true, "useLocal": true, "localPath": "./feature/subutil/app"},
+    {"name": "feature_subutil_pkg",       "isApply": true, "useLocal": true, "localPath": "./feature/subutil/pkg"},
+    {"name": "feature_subutil_export",    "isApply": true, "useLocal": true, "localPath": "./feature/subutil/export"},
+    {"name": "feature_utilcode_app",      "isApply": true, "useLocal": true, "localPath": "./feature/utilcode/app"},
+    {"name": "feature_utilcode_pkg",      "isApply": true, "useLocal": true, "localPath": "./feature/utilcode/pkg"},
+    {"name": "feature_utilcode_export",   "isApply": true, "useLocal": true, "localPath": "./feature/utilcode/export", "remotePath": "com.blankj:utilcode-export:1.1"},
+    {"name": "lib_base",                  "isApply": true, "useLocal": true, "localPath": "./lib/base"},
+    {"name": "lib_common",                "isApply": true, "useLocal": true, "localPath": "./lib/common"},
+    {"name": "lib_subutil",               "isApply": true, "useLocal": true, "localPath": "./lib/subutil"},
+    {"name": "lib_utilcode",              "isApply": true, "useLocal": true, "localPath": "./lib/utilcode", "remotePath": "com.blankj:utilcodex:$Config.versionName"},
+    {"name": "lib_utildebug",             "isApply": true, "useLocal": true, "localPath": "./lib/utildebug"},
+    {"name": "lib_utildebug_no_op",       "isApply": true, "useLocal": true, "localPath": "./lib/utildebug-no-op"}
+  ]
+}
diff --git a/plugin/api-gradle-plugin/.gitignore b/plugin/api-gradle-plugin/.gitignore
new file mode 100755
index 0000000000..c351bdb35e
--- /dev/null
+++ b/plugin/api-gradle-plugin/.gitignore
@@ -0,0 +1,2 @@
+/build
+ApiUtils2333.class
\ No newline at end of file
diff --git a/plugin/api-gradle-plugin/CHANGELOG.md b/plugin/api-gradle-plugin/CHANGELOG.md
new file mode 100644
index 0000000000..18476ef1e6
--- /dev/null
+++ b/plugin/api-gradle-plugin/CHANGELOG.md
@@ -0,0 +1,19 @@
+# Change Log
+
+## v1.5(2020/11/06)
+对非 mock 的 visitor 的修复
+
+## v1.4(2020/05/19)
+重新发布，因为上个版本从阿里云仓库拉取是有问题的
+
+## v1.3(2020/04/29)
+重构使用 base-transform
+
+## v1.2(2019/11/30)
+去除 gradle 版本依赖的问题
+
+## v1.1(2019/10/30)
+新增 onlyScanLibRegex, jumpScanLibRegex 的 DSL
+
+## v1.0(2019/07/20)
+发布初版本
\ No newline at end of file
diff --git a/plugin/api-gradle-plugin/README.md b/plugin/api-gradle-plugin/README.md
new file mode 100644
index 0000000000..5350bc5426
--- /dev/null
+++ b/plugin/api-gradle-plugin/README.md
@@ -0,0 +1,372 @@
+# 一学就会的模块间通讯（ApiUtils）
+
+## 背景
+
+随着项目业务越来越多，开发出一套好的组件化方案势在必行，如果还在探寻一套好的组件化架构，那么 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 想必会是你的菜。
+
+组件化方案中各业务是相互隔离的，所以两个业务模块要通信的话，就需要通过路由或者接口下沉来完成，业界的方案都无法与 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 完美融合，所以我就只好自己动手来完成一个更方便、精简、完美的 `ApiUtils`。
+
+它功能类似 SPI，但比 SPI 更适合于 Android，而且功能更强大，这里也吐槽下 Android 中使用 ServiceLoader 会引起的 ANR 的问题，虽然 kotlinx 中 R8 加入了 FastServiceLoader，但如果不用 kotlinx 的项目还是无法解决 ANR 的问题；解决方案肯定是有的，这里就不展开讨论这个问题了。
+
+在 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 架构中，我们可以通过 `ApiUtils` 来自由调用各模块的 `apis`，各业务通过对外提供的 `export` 模块来供其他业务方使用，自身只需要实现自身的 `export` 中的 `apis` 即可。其 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 的架构图如下所示：
+
+
+![AucFrame](https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/auc_frame.png)
+
+`ApiUtils` 扮演的角色如下所示：
+
+![ApiUtilsRole](https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/communication.png)
+
+图中还有提到 **[BusUtils](https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/bus-gradle-plugin)**，这是一个比 EventBus 更高效的模块内通讯工具，想了解的可以点进去看看哈。当然，`ApiUtils` 不仅在 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 中可以使用，在正常项目中你也可以使用它来做业务隔离，下面来介绍其具体使用方式。
+
+
+## 使用
+
+### 配置
+
+在项目根目录的 `build.gradle` 中添加 `api` 插件：
+
+```groovy
+buildscript {
+    dependencies {
+        ...
+        classpath 'com.blankj:api-gradle-plugin:latest.release'
+    }
+}
+```
+
+然后在 `application` 模块中使用该插件：
+
+```groovy
+apply plugin: "com.blankj.api"
+```
+
+给你的项目添加 **[AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode)** 依赖：
+
+```groovy
+api "com.blankj:utilcode:latest.release"
+```
+
+如果你单纯只想引入 `ApiUtils` 也是可以的，需要你自己拷贝一份这个类放到你工程里，然后在 app 下的 `build.gradle` 中 配置 api 的 DSL 域如下所示：
+
+```groovy
+api {
+    apiUtilsClass "com.xxx.xxx.ApiUtils"
+}
+
+android {
+    ...
+}
+```
+
+可以猜测到默认的 apiUtilsClass 为 `com.blankj.utilcode.util.ApiUtils` 哈。
+
+当然，如果你项目是开启混淆的话，全量引入 **[AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode)** 也是可以的，混淆会帮你去除未使用到的类和方法。
+
+api 完整的 DSL 如下所示：
+
+```groovy
+api {
+    abortOnError boolean   // api 扫描有问题是否终止编译，默认 true
+    apiUtilsClass String   // ApiUtils 类的路径，默认 'com.blankj.utilcode.util.ApiUtils'
+    onlyScanLibRegex String// 设置 transform 只扫描库的正则，比如 auc 配置的 '^([:]|(com\\.blankj)).+$'，
+                           // [:] 表示扫描本地 module，因为本地 module 在 transform 中的 jar 包名是以 : 开头的，比如 :feature:utilcode:feature_utilcode_pkg，
+                           // com.blankj 表示扫描远端仓库以 com.blankj 开头的，比如 com.blankj:utilcode:xx
+    jumpScanLibRegex String// 和 onlyScanLibRegex 类似，不过是指要跳过哪些扫描的，和 onlyScanLibRegex 不能共存，onlyScanLibRegex 优先级更高
+}
+```
+
+### 例子
+
+插件和依赖都配置完毕，下面就让我们在项目中使用吧，举一个实际的例子，比如 `login` 模块中存在 `LoginActivity`，`main` 模块存在 `MainActivity`，这两个模块是平行的关系，两者互不依赖，现在我们通过 `ApiUtils` 让 `LoginActivity` 来启动 `MainActivity`，在 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 中每个业务模块下都有 `export` 模块，类似于你们自己项目中的底层公共模块，因为是 `login` 来调用 `main` 模块，所以是 `mian` 模块需要提供 `api` 来供 `login` 来调，所以我们在 `main` 的 `export` 中加入一个继承自 `ApiUtils.BaseApi` 的抽象类 `MainApi`，并添加启动 `MainActivity` 的抽象方法，我们把方法搞得更复杂点，带上自定义的参数和返回值，具体如下所示：
+
+```java
+public abstract class MainApi extends ApiUtils.BaseApi {
+    public abstract MainResult startMainActivity(Context context, MainParam param);
+}
+
+public class MainParam {
+
+    private String name;
+
+    public MainParam(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
+
+public class MainResult {
+
+    private String name;
+
+    public MainResult(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
+```
+
+接下来我们在 `main` 模块新建 `MainApiImpl` 去实现这个抽象类，但需要额外做一步，**对该实现类加一个 `@ApiUtils.Api` 注解**，该注解是提供给 `api` 插件注入使用的，后面原理分析会提到，而且需要保证只能有一个空参的构造函数，因为后续调用的时候会用无参构造来生成实例，具体如下所示：
+
+```java
+@ApiUtils.Api
+public class MainApiImpl extends MainApi {
+    @Override
+    public MainResult startMainActivity(Context context, MainParam param) {
+        MainActivity.start(context, param);
+        return new MainResult("result");
+    }
+}
+```
+
+关于各模块的 `impl` 我建议最好放在各模块包名的最外层，这样方便打开这个模块源码就能找到这个模块向外暴露的 `apis`。
+
+注解 `@ApiUtils.Api` 中还提供了一个 `isMock` 的值，该值默认是 `false`，所以如上注解相当于 `@ApiUtils.Api(isMock = false)`，该值代表该接口是否用于 mock，一个 `api` 在项目中只有一个实现，所以在单模块调试的时候，该模块在通过 `ApiUtils` 调用其他模块 `api` 的时候，因为其他模块没有依赖进来，所以此时就需要 mock 其他模块的 `api`，防止因为找不到其他模块的 `api` 而 crash，在 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 中的 `mock` 层中我们就是这么做的，比如 `login` 模块在单独调试的时候，此时 `main` 模块是不存在的，我们就要写一个 mock 的 `api` 如下所示：
+
+```java
+@ApiUtils.Api(isMock = true)
+public class MainApiMockImpl extends MainApi {
+    @Override
+    public MainResult startMainActivity(Context context, MainParam param) {
+        ToastUtils.showLong("Start MainActivity succeed.");
+        return new MainResult("mock result");
+    }
+}
+```
+
+当 `MainApiImpl` 和 `MainApiMockImpl` 同时存在的时候，`api` 插件会让 `isMock = false` 为最终的 `api` 实现类，也就是 `MainApiImpl`，在 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 中，mock 层是在非全量 pkg 的情况下才会参与编译，所以不用担心最终全量的 app 中存有 `mock` 的冗余操作。
+
+下面就让我们在 `login` 中通过 `ApiUtils` 来调用 `mian` 提供的 `api` 吧，如下所示：
+
+```java
+MainResult result = ApiUtils.getApi(MainApi.class)
+        .startMainActivity(LoginActivity.this, new MainParam("MainParam"));
+```
+
+这里说明下，`ApiUtils.getApi(MainApi.class)` 这一步是懒加载的，也就是只会在第一次调用的时候才初始化，所以不用担心初始化的时候把所有业务 `api` 都一股脑实现降低效率的风险。
+
+现在，我们便可以运行一下查看是否可以跳转成功，`api` 插件还会在你的 application 目录下生成一份 `__api__.json` 的 api 列表文件，具体如下所示：
+
+```json
+{
+  "ApiUtilsClass": "com.blankj.utilcode.util.ApiUtils",
+  "implApis": {
+    "com/blankj/main/export/api/MainApi": "{ implApiClass: com/blankj/main/pkg/MainApiImpl, isMock: false }"
+  },
+  "noImplApis": []
+}
+```
+
+如果项目中并没有实现 `MainApi` 的话，为了确保项目不会因为 `ApiUtils` 在运行时崩溃，`api` 插件会使其在编译时就不通过，此时 `__api__.json` 文件如下所示，提示你需要实现 `MainApi`：
+
+```json
+{
+  "ApiUtilsClass": "com.blankj.utilcode.util.ApiUtils",
+  "implApis": {},
+  "noImplApis": [
+    "com/blankj/main/export/api/MainApi"
+  ]
+}
+```
+
+好了，使用已经介绍完毕了，看完是不是觉得还不错，6 着干嘛，赶紧扣愣吧，结合 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 使用简直美哉哈。
+
+
+## 规范
+
+要想工具用得舒服，规范肯定要遵守的，所谓无规矩不成方圆，不然五花八门的问题肯定一堆堆，这里推荐如下规范：
+
+* `impl` 和 `api` 应该都是 `public` 的，而且 `impl` 中应该只存在一个无参的 `public` 构造函数（默认不写即可）。
+* `api` 中接口的修改我们遵循类似于官方 Android SDK 的升级，大部分情况是新接口的出现需要兼容老接口，如果老接口并不影响功能的正常使用，也就无需通知业务方更新为新接口，新的接口一般都是新的业务方来调用；除非老的接口存有问题或漏洞，我们明确需要删除它，那在删除它的同时，我们还需要把业务中调用老接口的地方统一替换为新的接口，类似于我们升级 Android SDK 的时候，某些 `api` 明确被官方删除了，那我们就需要强行替换为新的接口。还是上面的跳转 `main` 的例子，由于新的业务在跳转的时候需新增一个 `UserInfo` 的参数，具体如下所示：
+```java
+// old
+public abstract class MainApi extends ApiUtils.BaseApi {
+    public abstract MainResult startMainActivity(Context context, MainParam param);
+}
+
+// good
+public abstract class MainApi extends ApiUtils.BaseApi {
+    public abstract MainResult startMainActivity(Context context, MainParam param);
+
+    public abstract MainResult startMainActivity(Context context, MainParam param, UserInfo info);
+}
+
+// don't
+public abstract class MainApi extends ApiUtils.BaseApi {
+    public abstract MainResult startMainActivity(Context context, MainParam param, UserInfo info);
+}
+```
+如果删除或修改老的接口的话，会导致其他模块还没来得及更新你的接口，从而调用你老的接口直接编译不过的问题。
+* 把 `impl` 放在业务包的最外层，开门见山，方便寻找。
+* 如果能结合 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 来使用，那就更规范不过了。
+
+
+## 原理
+
+### api 插件原理分析
+
+api 插件的源码在这里：[api 插件源码传送门](https://github.com/Blankj/AndroidUtilCode/tree/master/plugin/api-gradle-plugin)，该插件通过 Gradle 的 transform 来完成对 `ApiUtils.init()` 做注入，下面来一步步分析：
+
+不明白 transform 的可以先去了解下，简单来说 transform 就是专门用来做字节码插入操作的，最常见的就是 AOP（面向切面编程），这部分我就不科普了，有兴趣的可以自己搜索了解。
+
+说到字节码操作，那就又有知识点了，想要上手快速简单的可以使用 `javassist`，不过，我选择了更强大快速的 `ASM`，这里我就不详细介绍了，有兴趣的可以自己去学习，`ASM` 其实也很简单的，在 [ASM Bytecode Outline](https://plugins.jetbrains.com/plugin/5918-asm-bytecode-outline) 这个插件帮助下写得还是很快的。
+
+通过 ASM 扫描出所有继承自 `ApiUtils.BaseApi` 的类，以及所有带有 `@ApiUtils.Api` 注解的类，然后保存起来，相关代码如下所示：
+
+```java
+@Override
+public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
+    className = name;
+    superClassName = superName;
+    if ((mApiUtilsClass + "$BaseApi").equals(superName)) {
+        mApiClasses.add(name);
+    }
+    super.visit(version, access, name, signature, superName, interfaces);
+}
+
+@Override
+public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
+    if (("L" + mApiUtilsClass + "$Api;").equals(desc)) {
+        hasAnnotation = true;
+        return new AnnotationVisitor(Opcodes.ASM5, super.visitAnnotation(desc, visible)) {
+            @Override
+            public void visit(String name, Object value) {// 可获取注解的值
+                isMock = (boolean) value;
+                super.visit(name, value);
+            }
+        };
+    }
+    return super.visitAnnotation(desc, visible);
+}
+
+@Override
+public void visitEnd() {
+    super.visitEnd();
+    if (hasAnnotation) {
+        if (!isMock) {// 如果不是 mock 的话
+            ApiInfo apiInfo = mApiImplMap.get(superClassName);
+            if (apiInfo == null) {
+                mApiImplMap.put(superClassName, new ApiInfo(className, false));
+            } else {// 存在一个 api 多个实现就报错
+                errorStr = "<" + className + "> and <" + apiInfo.implApiClass + "> impl same api of <" + superClassName + ">";
+            }
+        } else {// mock 的话，如果 map 中已存在就不覆盖了
+            if (!mApiImplMap.containsKey(superClassName)) {
+                mApiImplMap.put(superClassName, new ApiInfo(className, true));
+            }
+        }
+    }
+}
+```
+
+然后往 `ApiUtils.init()` 插入扫描出来的内容，比如上面举例的 `MainApi`，那么其最终插入的代码如下所示：
+
+```java
+private void init() {
+    this.registerImpl(MainApiImpl.class);
+}
+```
+
+其 ASM 插入的代码如下所示：
+
+```java
+@Override
+public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+    if (!"init".equals(name)) {
+        return super.visitMethod(access, name, descriptor, signature, exceptions);
+    }
+    // 往 init() 函数中写入
+    if (cv == null) return null;
+    MethodVisitor mv = cv.visitMethod(access, name, descriptor, signature, exceptions);
+    mv = new AdviceAdapter(Opcodes.ASM5, mv, access, name, descriptor) {
+        @Override
+        public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
+            return super.visitAnnotation(desc, visible);
+        }
+        @Override
+        protected void onMethodEnter() {
+            super.onMethodEnter();
+        }
+        @Override
+        protected void onMethodExit(int opcode) {
+            super.onMethodExit(opcode);
+            for (Map.Entry<String, ApiInfo> apiImplEntry : mApiImplMap.entrySet()) {
+                mv.visitVarInsn(Opcodes.ALOAD, 0);
+                mv.visitLdcInsn(Type.getType("L" + apiImplEntry.getValue().implApiClass + ";"));
+                mv.visitMethodInsn(Opcodes.INVOKESPECIAL, mApiUtilsClass, "registerImpl", "(Ljava/lang/Class;)V", false);
+            }
+        }
+    };
+    return mv;
+}
+```
+
+### ApiUtils 原理分析
+
+接下来看下 `ApiUtils.registerImpl` 的实现：
+
+```java
+private void registerImpl(Class implClass) {
+    mInjectApiImplMap.put(implClass.getSuperclass(), implClass);
+}
+```
+
+很简单，就是往 `mInjectApiImplMap` 中插入了 key 为 `MainApiImpl` 的父类：`MainApi` 的 class，value 为 `MainApiImpl` 的 class。
+
+后面就让我们来看具体调用 `getApi` 的操作吧：
+
+```java
+public static <T extends BaseApi> T getApi(@NonNull final Class<T> apiClass) {
+    return getInstance().getApiInner(apiClass);
+}
+
+private <Result> Result getApiInner(Class apiClass) {
+    BaseApi api = mApiMap.get(apiClass);
+    if (api == null) {
+        synchronized (this) {
+            api = mApiMap.get(apiClass);
+            if (api == null) {
+                Class implClass = mInjectApiImplMap.get(apiClass);
+                if (implClass != null) {
+                    try {
+                        api = (BaseApi) implClass.newInstance();
+                        mApiMap.put(apiClass, api);
+                    } catch (Exception ignore) {
+                        Log.e(TAG, "The <" + implClass + "> has no parameterless constructor.");
+                        return null;
+                    }
+                } else {
+                    Log.e(TAG, "The <" + apiClass + "> doesn't implement.");
+                    return null;
+                }
+            }
+        }
+    }
+    //noinspection unchecked
+    return (Result) api;
+}
+
+public abstract static class BaseApi {
+}
+```
+
+这段代码很好理解，而且加了同步锁操作，防止多线程生成多个 `impl`，然后，根据传进来的 `api` 的 class，我们通过注入的 `map` 中找到具体的 `impl` 的 class，如果缓存中有就取缓存中的，没有的话就通过 `newInstance` 来实例化一个 `impl`，并放入缓存中，最终返回其 `impl`。因为是通过 `newInstance` 来实例化 `impl`，这也解释了为什么 `impl` 中需保留无参构造函数，而且只有在使用时才会初始化，而不是一股脑把所有的 `api` 都初始化。
+
+简易实用，不到 100 行代码实现模块间跳转的 `ApiUtils` 已介绍完毕，接下来你就可以小试牛刀了。
+
+
+## [Change Log](https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/api-gradle-plugin/CHANGELOG.md)
\ No newline at end of file
diff --git a/plugin/api-gradle-plugin/build.gradle b/plugin/api-gradle-plugin/build.gradle
new file mode 100755
index 0000000000..8a559c213d
--- /dev/null
+++ b/plugin/api-gradle-plugin/build.gradle
@@ -0,0 +1,40 @@
+apply {
+    plugin "groovy"
+    plugin "java-gradle-plugin"
+}
+
+gradlePlugin {
+    plugins {
+        apiPlugin {
+            id = Config.plugins.plugin_api.id
+            implementationClass = 'com.blankj.api.ApiPlugin'
+        }
+    }
+}
+
+dependencies {
+    compileOnly Config.plugins.plugin_gradle.path
+    implementation Config.libs.commons_io.path
+    implementation Config.modules.plugin_lib_base_transform.remotePath
+    implementation gradleApi()
+    implementation localGroovy()
+
+    testImplementation Config.libs.test_junit.path
+    testImplementation Config.plugins.plugin_gradle.path
+}
+
+sourceSets {
+    main {
+        groovy {
+            srcDirs += 'src/main/java'
+        }
+    }
+}
+
+ext {
+    groupId = Config.plugins.plugin_api.groupId
+    artifactId = Config.plugins.plugin_api.artifactId
+    version = Config.plugins.plugin_api.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+apply from: "${rootDir.path}/config/publish.gradle"
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiClassVisitor.java b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiClassVisitor.java
new file mode 100644
index 0000000000..7f71e7919a
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiClassVisitor.java
@@ -0,0 +1,79 @@
+package com.blankj.api;
+
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.Opcodes;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class ApiClassVisitor extends ClassVisitor {
+
+    private Map<String, ApiInfo> mApiImplMap;
+    private List<String>         mApiClasses;
+    private String               className;
+    private String               superClassName;
+    private boolean              hasAnnotation;
+    private boolean              isMock;
+    private String               mApiUtilsClass;
+
+    public ApiClassVisitor(ClassVisitor classVisitor, Map<String, ApiInfo> apiImplMap, List<String> apiClasses, String apiUtilsClass) {
+        super(Opcodes.ASM5, classVisitor);
+        mApiImplMap = apiImplMap;
+        mApiClasses = apiClasses;
+        mApiUtilsClass = apiUtilsClass.replace(".", "/");
+    }
+
+    @Override
+    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
+        className = name;
+        superClassName = superName;
+        if ((mApiUtilsClass + "$BaseApi").equals(superName)) {
+            mApiClasses.add(name);
+        }
+        super.visit(version, access, name, signature, superName, interfaces);
+    }
+
+    @Override
+    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
+        if (("L" + mApiUtilsClass + "$Api;").equals(desc)) {
+            hasAnnotation = true;
+            return new AnnotationVisitor(Opcodes.ASM5, super.visitAnnotation(desc, visible)) {
+                @Override
+                public void visit(String name, Object value) {// 可获取注解的值
+                    isMock = (boolean) value;
+                    super.visit(name, value);
+                }
+            };
+        }
+        return super.visitAnnotation(desc, visible);
+    }
+
+    @Override
+    public void visitEnd() {
+        super.visitEnd();
+        if (hasAnnotation) {
+            if (!isMock) {// 如果不是 mock 的话
+                ApiInfo apiInfo = mApiImplMap.get(superClassName);
+                if (apiInfo == null || apiInfo.isMock) {// 不存在或者之前存在的是 mock
+                    mApiImplMap.put(superClassName, new ApiInfo(className, false));
+                } else {// 存在一个 api 多个非 mock 实现就报错
+                    throw new IllegalArgumentException("<" + className + "> and <" + apiInfo.implApiClass + "> impl same api of <" + superClassName + ">");
+                }
+            } else {// mock 的话，如果 map 中已存在就不覆盖了
+                if (!mApiImplMap.containsKey(superClassName)) {
+                    mApiImplMap.put(superClassName, new ApiInfo(className, true));
+                }
+            }
+        }
+    }
+}
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiExtension.groovy b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiExtension.groovy
new file mode 100755
index 0000000000..87ec26e571
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiExtension.groovy
@@ -0,0 +1,19 @@
+package com.blankj.api
+
+class ApiExtension {
+
+    boolean abortOnError = true
+    String apiUtilsClass = "com.blankj.utilcode.util.ApiUtils";
+    String onlyScanLibRegex = ""
+    String jumpScanLibRegex = ""
+
+    @Override
+    String toString() {
+        return "ApiExtension { " +
+                "abortOnError: " + abortOnError +
+                ", apiUtilsClass: " + apiUtilsClass +
+                (onlyScanLibRegex == "" ? "" : ", onlyScanLibRegex: " + onlyScanLibRegex) +
+                (jumpScanLibRegex == "" ? "" : ", jumpScanLibRegex: " + jumpScanLibRegex) +
+                " }";
+    }
+}
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiInfo.java b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiInfo.java
new file mode 100644
index 0000000000..d6d9ccce5f
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiInfo.java
@@ -0,0 +1,27 @@
+package com.blankj.api;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/14
+ *     desc  :
+ * </pre>
+ */
+public class ApiInfo {
+
+    public String  implApiClass;
+    public boolean isMock;
+
+    public ApiInfo(String implApiClass, boolean isMock) {
+        this.implApiClass = implApiClass;
+        this.isMock = isMock;
+    }
+
+    @Override
+    public String toString() {
+        return "{ implApiClass: " + implApiClass +
+                ", isMock: " + isMock +
+                " }";
+    }
+}
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiInject.groovy b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiInject.groovy
new file mode 100755
index 0000000000..c5a1e674d9
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiInject.groovy
@@ -0,0 +1,45 @@
+package com.blankj.api
+
+import com.blankj.base_transform.util.ZipUtils
+import org.apache.commons.io.FileUtils
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.ClassVisitor
+import org.objectweb.asm.ClassWriter
+
+class ApiInject {
+
+    static void start(Map<String, String> apiImplMap, File apiUtilsTransformFile, String busUtilsClass) {
+        if (apiUtilsTransformFile.getPath().endsWith(".jar")) {
+            String jarPath = apiUtilsTransformFile.getAbsolutePath()
+            String decompressedJarPath = jarPath.substring(0, jarPath.length() - 4);
+            File decompressedJar = new File(decompressedJarPath)
+            ZipUtils.unzipFile(apiUtilsTransformFile, decompressedJar)
+
+            File apiUtilsFile = new File(
+                    decompressedJarPath + Config.FILE_SEP +
+                            busUtilsClass.replace('.', Config.FILE_SEP) + '.class'
+            )
+
+            inject2ApiUtils(apiUtilsFile, apiImplMap, busUtilsClass)
+
+            FileUtils.forceDelete(apiUtilsTransformFile)
+            ZipUtils.zipFiles(Arrays.asList(decompressedJar.listFiles()), apiUtilsTransformFile)
+            FileUtils.forceDelete(decompressedJar)
+        } else {
+            File apiUtilsFile = new File(
+                    apiUtilsTransformFile.getAbsolutePath() + Config.FILE_SEP +
+                            busUtilsClass.replace('.', Config.FILE_SEP) + '.class'
+            )
+
+            inject2ApiUtils(apiUtilsFile, apiImplMap, busUtilsClass)
+        }
+    }
+
+    private static void inject2ApiUtils(File apiUtilsFile, Map<String, String> apiImplMap, String apiUtilsClass) {
+        ClassReader cr = new ClassReader(apiUtilsFile.bytes);
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new ApiUtilsClassVisitor(cw, apiImplMap, apiUtilsClass);
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+        FileUtils.writeByteArrayToFile(apiUtilsFile, cw.toByteArray())
+    }
+}
\ No newline at end of file
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiPlugin.groovy b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiPlugin.groovy
new file mode 100755
index 0000000000..9a5212c250
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiPlugin.groovy
@@ -0,0 +1,115 @@
+package com.blankj.api
+
+import com.android.build.api.transform.JarInput
+import com.blankj.base_transform.BaseTransformPlugin
+import com.blankj.base_transform.util.JsonUtils
+import org.apache.commons.io.FileUtils
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.ClassVisitor
+import org.objectweb.asm.ClassWriter
+
+import java.util.regex.Pattern
+
+class ApiPlugin extends BaseTransformPlugin<ApiExtension> {
+
+    String apiUtilsClass
+    File jsonFile
+    File apiUtilsTransformFile
+    Map<String, ApiInfo> apiImplMap = [:]
+    List<String> apiClasses = []
+
+    @Override
+    String getPluginName() {
+        return Config.EXT_NAME
+    }
+
+    @Override
+    void onScanStarted() {
+        apiUtilsClass = ext.apiUtilsClass
+        if (apiUtilsClass.trim().equals("")) {
+            throw new Exception("ApiExtension's apiUtilsClass is empty.")
+        }
+
+        jsonFile = new File(mProject.projectDir.getAbsolutePath(), "__api__.json")
+        FileUtils.write(jsonFile, "{}")
+    }
+
+    @Override
+    boolean isIgnoreScan(JarInput input) {
+        def jarName = input.name
+        if (jarName.contains("utilcode")) {
+            return false
+        }
+
+        if (ext.onlyScanLibRegex != null && ext.onlyScanLibRegex.trim().length() > 0) {
+            return !Pattern.matches(ext.onlyScanLibRegex, jarName)
+        }
+
+        if (ext.jumpScanLibRegex != null && ext.jumpScanLibRegex.trim().length() > 0) {
+            if (Pattern.matches(ext.jumpScanLibRegex, jarName)) {
+                return true
+            }
+        }
+
+        for (exclude in Config.EXCLUDE_LIBS_START_WITH) {
+            if (jarName.startsWith(exclude)) {
+                return true
+            }
+        }
+        return false
+    }
+
+    @Override
+    void scanClassFile(File classFile, String className, File originScannedJarOrDir) {
+        if (apiUtilsClass == className) {
+            apiUtilsTransformFile = originScannedJarOrDir
+            log("<ApiUtils transform file>: $originScannedJarOrDir")
+        }
+
+        ClassReader cr = new ClassReader(classFile.bytes);
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new ApiClassVisitor(cw, apiImplMap, apiClasses, apiUtilsClass);
+        try {
+            cr.accept(cv, ClassReader.SKIP_FRAMES);
+        } catch (Exception ignore) {
+            ignore.printStackTrace()
+        }
+    }
+
+    @Override
+    void onScanFinished() {
+        if (apiUtilsTransformFile != null) {
+            if (apiClasses.isEmpty()) {
+                log("no api.")
+            } else {
+                Map implApis = [:]
+                List<String> noImplApis = []
+                apiImplMap.each { key, value ->
+                    implApis.put(key, value.toString())
+                }
+                apiClasses.each {
+                    if (!apiImplMap.containsKey(it)) {
+                        noImplApis.add(it)
+                    }
+                }
+                Map apiDetails = [:]
+                apiDetails.put("ApiUtilsClass", apiUtilsClass)
+                apiDetails.put("implApis", implApis)
+                apiDetails.put("noImplApis", noImplApis)
+                String apiJson = JsonUtils.getFormatJson(apiDetails)
+                log(jsonFile.toString() + ": " + apiJson)
+                FileUtils.write(jsonFile, apiJson)
+
+                if (noImplApis.size() > 0) {
+                    if (ext.abortOnError) {
+                        throw new Exception("u should impl these apis: " + noImplApis +
+                                "\n u can check it in file: " + jsonFile.toString())
+                    }
+                }
+                ApiInject.start(apiImplMap, apiUtilsTransformFile, apiUtilsClass)
+            }
+        } else {
+            throw new Exception("No ApiUtils of ${apiUtilsClass} in $mProject.")
+        }
+    }
+}
\ No newline at end of file
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiUtilsClassVisitor.java b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiUtilsClassVisitor.java
new file mode 100644
index 0000000000..e9d3c938d0
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/ApiUtilsClassVisitor.java
@@ -0,0 +1,64 @@
+package com.blankj.api;
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+import org.objectweb.asm.commons.AdviceAdapter;
+
+import java.util.Map;
+
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class ApiUtilsClassVisitor extends ClassVisitor {
+
+    private Map<String, ApiInfo> mApiImplMap;
+    private String               mApiUtilsClass;
+
+    public ApiUtilsClassVisitor(ClassVisitor classVisitor, Map<String, ApiInfo> apiImplMap, String apiUtilsClass) {
+        super(Opcodes.ASM5, classVisitor);
+        mApiImplMap = apiImplMap;
+        mApiUtilsClass = apiUtilsClass.replace(".", "/");
+    }
+
+    @Override
+    public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+        if (!"init".equals(name)) {
+            return super.visitMethod(access, name, descriptor, signature, exceptions);
+        }
+        // 往 init() 函数中写入
+        if (cv == null) return null;
+        MethodVisitor mv = cv.visitMethod(access, name, descriptor, signature, exceptions);
+        mv = new AdviceAdapter(Opcodes.ASM5, mv, access, name, descriptor) {
+
+            @Override
+            public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
+                return super.visitAnnotation(desc, visible);
+            }
+
+            @Override
+            protected void onMethodEnter() {
+                super.onMethodEnter();
+            }
+
+            @Override
+            protected void onMethodExit(int opcode) {
+                super.onMethodExit(opcode);
+                for (Map.Entry<String, ApiInfo> apiImplEntry : mApiImplMap.entrySet()) {
+                    mv.visitVarInsn(Opcodes.ALOAD, 0);
+                    mv.visitLdcInsn(Type.getType("L" + apiImplEntry.getValue().implApiClass + ";"));
+                    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, mApiUtilsClass, "registerImpl", "(Ljava/lang/Class;)V", false);
+                }
+            }
+        };
+        return mv;
+    }
+}
diff --git a/plugin/api-gradle-plugin/src/main/java/com/blankj/api/Config.groovy b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/Config.groovy
new file mode 100755
index 0000000000..6414767cf7
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/main/java/com/blankj/api/Config.groovy
@@ -0,0 +1,21 @@
+package com.blankj.api
+
+import com.blankj.base_transform.BaseTransformConfig
+
+class Config {
+
+    public static final String EXT_NAME = 'api'
+
+    public static final List<String> EXCLUDE_LIBS_START_WITH = [
+            'com.android.support',
+            'androidx',
+            'com.google',
+            'android.arch',
+            'org.jetbrains',
+            'com.squareup',
+            'org.greenrobot',
+            'com.github.bumptech.glide'
+    ]
+
+    public static final String FILE_SEP = BaseTransformConfig.FILE_SEP
+}
diff --git a/plugin/api-gradle-plugin/src/test/java/com/blankj/api/ApiTest.java b/plugin/api-gradle-plugin/src/test/java/com/blankj/api/ApiTest.java
new file mode 100644
index 0000000000..94fdce9fe0
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/test/java/com/blankj/api/ApiTest.java
@@ -0,0 +1,77 @@
+package com.blankj.api;
+
+import org.apache.commons.io.FileUtils;
+import org.junit.Test;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.ClassWriter;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class ApiTest {
+
+    @Test
+    public void testInject() throws IOException {
+        inject2ApiUtils(getApiImplMap());
+    }
+
+    private static Map<String, ApiInfo> getApiImplMap() throws IOException {
+        Map<String, ApiInfo> apiImplMap = new HashMap<>();
+        List<String> apiClasses = new ArrayList<>();
+
+        ClassReader cr = new ClassReader(TestApiImpl.class.getName());
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new ApiClassVisitor(cw, apiImplMap, apiClasses, ApiUtils.class.getCanonicalName());
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+
+        System.out.println("apiImplMap = " + apiImplMap);
+
+        apiClasses = new ArrayList<>();
+        cr = new ClassReader(TestApi.class.getName());
+        cw = new ClassWriter(cr, 0);
+        cv = new ApiClassVisitor(cw, apiImplMap, apiClasses, ApiUtils.class.getCanonicalName());
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+
+        System.out.println("apiClasses = " + apiClasses);
+        return apiImplMap;
+    }
+
+    private static void inject2ApiUtils(Map<String, ApiInfo> apiImpls) throws IOException {
+        ClassReader cr = new ClassReader(ApiUtils.class.getName());
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new ApiUtilsClassVisitor(cw, apiImpls, ApiUtils.class.getCanonicalName());
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+
+        FileUtils.writeByteArrayToFile(new File("ApiUtils2333.class"), cw.toByteArray());
+    }
+
+    @ApiUtils.Api(isMock = true)
+    public static class TestApiImpl extends TestApi {
+
+        @Override
+        public String test(String param) {
+            System.out.println("param = " + param);
+            return "haha";
+        }
+
+    }
+
+    public static abstract class TestApi extends ApiUtils.BaseApi {
+
+        public abstract String test(String name);
+
+    }
+}
\ No newline at end of file
diff --git a/plugin/api-gradle-plugin/src/test/java/com/blankj/api/ApiUtils.java b/plugin/api-gradle-plugin/src/test/java/com/blankj/api/ApiUtils.java
new file mode 100644
index 0000000000..a8cf9237de
--- /dev/null
+++ b/plugin/api-gradle-plugin/src/test/java/com/blankj/api/ApiUtils.java
@@ -0,0 +1,104 @@
+package com.blankj.api;
+
+import com.android.annotations.NonNull;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class ApiUtils {
+
+    private static final String TAG = "ApiUtils";
+
+    private Map<Class, BaseApi> mApiMap           = new ConcurrentHashMap<>();
+    private Map<Class, Class>   mInjectApiImplMap = new HashMap<>();
+
+    private ApiUtils() {
+        init();
+    }
+
+    /**
+     * It'll be injected the implClasses who have {@link ApiUtils.Api} annotation
+     * by function of {@link ApiUtils#registerImpl} when execute transform task.
+     */
+    private void init() {/*inject*/}
+
+    private void registerImpl(Class implClass) {
+        mInjectApiImplMap.put(implClass.getSuperclass(), implClass);
+    }
+
+    /**
+     * Get api.
+     *
+     * @param apiClass The class of api.
+     * @param <T>      The type.
+     * @return the api
+     */
+    public static <T extends BaseApi> T getApi(@NonNull final Class<T> apiClass) {
+        return getInstance().getApiInner(apiClass);
+    }
+
+    public static String toString_() {
+        return getInstance().toString();
+    }
+
+    @Override
+    public String toString() {
+        return "ApiUtils: " + mInjectApiImplMap;
+    }
+
+    private static ApiUtils getInstance() {
+        return LazyHolder.INSTANCE;
+    }
+
+    private <Result> Result getApiInner(Class apiClass) {
+        BaseApi api = mApiMap.get(apiClass);
+        if (api == null) {
+            synchronized (this) {
+                api = mApiMap.get(apiClass);
+                if (api == null) {
+                    Class implClass = mInjectApiImplMap.get(apiClass);
+                    if (implClass != null) {
+                        try {
+                            api = (BaseApi) implClass.newInstance();
+                            mApiMap.put(apiClass, api);
+                        } catch (Exception ignore) {
+                            System.out.println("The <" + implClass + "> has no parameterless constructor.");
+                            return null;
+                        }
+                    } else {
+                        System.out.println("The <" + apiClass + "> doesn't implement.");
+                        return null;
+                    }
+                }
+            }
+        }
+        //noinspection unchecked
+        return (Result) api;
+    }
+
+    private static class LazyHolder {
+        private static final ApiUtils INSTANCE = new ApiUtils();
+    }
+
+    @Target({ElementType.TYPE})
+    @Retention(RetentionPolicy.CLASS)
+    public @interface Api {
+        boolean isMock() default false;
+    }
+
+    public abstract static class BaseApi {
+    }
+}
diff --git a/plugin/buildSrc-plugin/.gitignore b/plugin/buildSrc-plugin/.gitignore
new file mode 100755
index 0000000000..42afabfd2a
--- /dev/null
+++ b/plugin/buildSrc-plugin/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/plugin/buildSrc-plugin/build.gradle b/plugin/buildSrc-plugin/build.gradle
new file mode 100755
index 0000000000..567fbcef2d
--- /dev/null
+++ b/plugin/buildSrc-plugin/build.gradle
@@ -0,0 +1,37 @@
+apply {
+    plugin "groovy"
+    plugin "java-gradle-plugin"
+}
+
+gradlePlugin {
+    plugins {
+        apiPlugin {
+            id = 'com.blankj.buildSrc'
+            implementationClass = 'com.blankj.buildSrc.BuildSrcPlugin'
+        }
+    }
+}
+
+dependencies {
+    compileOnly Config.plugins.plugin_gradle.path
+    implementation Config.libs.commons_io.path
+    implementation gradleApi()
+    implementation localGroovy()
+}
+
+sourceSets {
+    main {
+        groovy {
+            srcDirs += 'src/main/java'
+        }
+    }
+}
+
+ext {
+    groupId = Config.plugins.plugin_buildSrc.groupId
+    artifactId = Config.plugins.plugin_buildSrc.artifactId
+    version = Config.plugins.plugin_buildSrc.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+apply from: "${rootDir.path}/config/publish.gradle"
+//./gradlew clean plugin:plugin_buildSrc-plugin:publish2Local     // 上传到本地 mavenLocal
diff --git a/plugin/buildSrc-plugin/src/main/java/com/blankj/buildSrc/BuildSrcPlugin.groovy b/plugin/buildSrc-plugin/src/main/java/com/blankj/buildSrc/BuildSrcPlugin.groovy
new file mode 100644
index 0000000000..2915b3ffe1
--- /dev/null
+++ b/plugin/buildSrc-plugin/src/main/java/com/blankj/buildSrc/BuildSrcPlugin.groovy
@@ -0,0 +1,13 @@
+package com.blankj.buildSrc;
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+class BuildSrcPlugin implements Plugin<Project> {
+
+    @Override
+    void apply(Project project) {
+        println 'apply BuildSrcPlugin'
+        ModuleCfg.main()
+    }
+}
\ No newline at end of file
diff --git a/plugin/buildSrc-plugin/src/main/java/com/blankj/buildSrc/ModuleCfg.groovy b/plugin/buildSrc-plugin/src/main/java/com/blankj/buildSrc/ModuleCfg.groovy
new file mode 100644
index 0000000000..d52675d158
--- /dev/null
+++ b/plugin/buildSrc-plugin/src/main/java/com/blankj/buildSrc/ModuleCfg.groovy
@@ -0,0 +1,80 @@
+package com.blankj.buildSrc
+
+import groovy.json.JsonSlurper
+
+
+/**
+ * 在 config.json 中 根据 appConfig 和 pkgConfig 来 include 本地模块
+ * 可以考虑写成插件来更方便 apply
+ */
+
+println 'exe ModuleCfg.groovy'
+
+def config = new JsonSlurper().parse(file("./config.json"))
+
+for (def pro in config.proConfig) {
+    String localPath = pro.localPath
+
+    if (localPath == ":feature:mock") {
+        if (config.pkgConfig.isEmpty()) {
+            pro.isApply = false
+        }
+    } else if (localPath.endsWith(":app")) {
+        def appName = localPath.substring(":feature:".length(), localPath.length() - 4)
+        if (!config.appConfig.contains(appName)) {
+            pro.isApply = false
+        }
+    } else if (localPath.endsWith(":pkg")) {
+        if (!config.pkgConfig.isEmpty()) {
+            def pkgName = localPath.substring(":feature:".length(), localPath.length() - 4)
+            if (!config.pkgConfig.contains(pkgName)) {
+                pro.isApply = false
+            }
+        }
+    }
+
+    if (pro.useLocal && pro.isApply) {
+        def projectPath = ":" + localPath.substring(1).replace(":", "_")
+        include projectPath
+        project(projectPath).projectDir = file(localPath.substring(1).replace(":", "/"))
+    }
+}
+
+def ls = System.getProperty("line.separator")
+
+List<String> proDeps = []
+for (def pro in config.proConfig) {
+    boolean useLocal = pro.useLocal
+    String localPath = pro.localPath
+    String remotePath = pro.remotePath
+    String name = localPath.replace(":", "_").replace("-", "_").substring(1)
+    if (localPath != null) localPath = "\"$localPath\""
+    if (remotePath != null) remotePath = "\"$remotePath\""
+    boolean isApply = pro.isApply
+    proDeps.add(String.format("%-12s%-27s: new DepConfig(%-5s, %-5s, $localPath%s),",
+            "", name, isApply, useLocal, remotePath == null ? "" : ", $remotePath"))
+}
+
+def configFile = file('./buildSrc/src/main/groovy/ModuleConfig.groovy')
+def lines = configFile.readLines("utf8")
+def configContent = new StringBuilder()
+
+boolean enterNeverFlag = false
+for (def line : lines) {
+    if (enterNeverFlag) {
+        if (line.contains("/*Never")) {
+            configContent.append(ls).append(line)
+            enterNeverFlag = false
+        }
+        continue
+    }
+    configContent.append(ls).append(line)
+    if (line.contains("/*Never")) {
+        configContent.append(ls).append(String.format("%-12s/*Generated by \"config.json\"*/", ""))
+        enterNeverFlag = true
+        for (String dep : proDeps) {
+            configContent.append(ls).append(dep)
+        }
+    }
+}
+configFile.write(configContent.substring(ls.length()).toString())
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/.gitignore b/plugin/bus-gradle-plugin/.gitignore
new file mode 100755
index 0000000000..88d5a8b163
--- /dev/null
+++ b/plugin/bus-gradle-plugin/.gitignore
@@ -0,0 +1,2 @@
+/build
+BusUtils2333.class
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/CHANGELOG.md b/plugin/bus-gradle-plugin/CHANGELOG.md
new file mode 100644
index 0000000000..e267fafec4
--- /dev/null
+++ b/plugin/bus-gradle-plugin/CHANGELOG.md
@@ -0,0 +1,49 @@
+# Change Log
+
+## v2.6(2020/05/19)
+重新发布，因为上个版本从阿里云仓库拉取是有问题的
+
+## v2.5(2020/04/29)
+重构使用 base-transform
+
+## v2.4
+去除 gradle 版本依赖的问题
+
+## v2.3
+新增 onlyScanLibRegex, jumpScanLibRegex 的 DSL
+
+## v2.2
+修复含有 for 循环的字段导致 out of index 的 bug
+
+## v2.1
+支持 Tag 一对多，同 Tag 可设置事件优先级
+
+## v2.0
+更改为 EventBus 模式
+
+## v1.8
+兼容最新工程组件化
+
+## v1.7
+兼容 utilcodex
+
+## v1.6
+修复 inject 时候 zip 操作不对导致混淆出错的问题
+
+## v1.5
+升级 javassist 来修复 Kotlin 匿名类 NotFoundException
+
+## v1.4
+优化 inject 兼容 Kotlin 的 bus
+
+## v1.3
+去除 static bus，只注入 utilcode
+
+## v1.2
+修复 bug
+
+## v1.1
+升级 javassist 版本，兼容 Java8
+
+## v1.0
+发布初版本
diff --git a/plugin/bus-gradle-plugin/README.md b/plugin/bus-gradle-plugin/README.md
new file mode 100644
index 0000000000..a2d0362f39
--- /dev/null
+++ b/plugin/bus-gradle-plugin/README.md
@@ -0,0 +1,768 @@
+# 比 EventBus 更高效的事件总线（BusUtils）
+
+## 背景
+
+设计这个 `BusUtils` 其实是在做 [ApiUtils](https://github.com/Blankj/AndroidUtilCode/tree/master/plugin/api-gradle-plugin) 时顺手做的，因为两者实现方式基本一致，设计前我也没想着要和 greenrobot 的 `EventBus` 一较高低，但设计完总需要一个对比，所以就拿业界最优秀的事件总线 `EventBus` 比较一下吧，然后就发现我这区区 300 行不到的 `BusUtils` 性能比 `EventBus` 要高出好多，当然，这一切的前提都是在 `BusUtils` 是切实可用并且有效的，它也是一款线程安全的事件总线，这些我都在单测中有做过实际测试的，不吹不擂，后面我们拿数据说话，有小伙伴不相信的话也可以通过下载我的源码来比较即可，单测地址：[BusUtilsVsEventBusTest](https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/BusUtilsVsEventBusTest.java)，Android 测试地址：[BusCompareActivity](https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/bus/BusCompareActivity.kt)，`BusUtils` 在 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 中的作用就是模块内传值，其扮演的角色如下所示：
+
+![BusUtilsRole](https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/communication.png)
+
+下面介绍其使用：
+
+
+## 使用
+
+### 配置
+
+在项目根目录的 `build.gradle` 中添加 `bus` 插件：
+
+```groovy
+buildscript {
+    dependencies {
+        ...
+        classpath 'com.blankj:bus-gradle-plugin:latest.release'
+    }
+}
+```
+
+然后在 application 模块中使用该插件：
+
+```groovy
+apply plugin: "com.blankj.bus"
+```
+
+给你的项目添加 [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode) 依赖：
+
+```groovy
+api "com.blankj:utilcode:latest.release
+```
+
+如果你单纯只想引入 `BusUtils` 也是可以的，需要你自己拷贝一份这个类放到你工程里，记得还要拷贝 `ThreadUtils` 哦，然后在 app 下的 `build.gradle` 中 配置 bus 的 DSL 域如下所示：
+
+```groovy
+bus {
+    busUtilsClass "com.xxx.xxx.BusUtils"
+}
+
+android {
+    ...
+}
+```
+
+可以猜测到默认的 busUtilsClass 为 `com.blankj.utilcode.util.BusUtils` 哈。
+
+如果开启混淆的话还需要配置你的 `BusUtils` 中注解方法的防混淆，如果直接用 **[AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode)** 的话是不需要你配置的，我已经帮你做完了，配置你自己的 `BusUtils` 防混淆应该如下所示：
+
+```java
+-keepattributes *Annotation*
+-keepclassmembers class * {
+    @com.xxx.xxx.BusUtils$Bus <methods>;
+}
+```
+
+当然，如果你项目是开启混淆的话，全量引入 **[AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode)** 也是可以的，混淆会帮你去除未使用到的类和方法。
+
+bus 完整的 DSL 如下所示：
+
+```groovy
+bus {
+    abortOnError boolean   // bus 扫描有问题是否终止编译，默认 true
+    busUtilsClass String   // BusUtils 类的路径，默认 'com.blankj.utilcode.util.BusUtils'
+    onlyScanLibRegex String// 设置 transform 只扫描库的正则，比如 auc 配置的 '^([:]|(com\\.blankj)).+$'，
+                           // [:] 表示扫描本地 module，因为本地 module 在 transform 中的 jar 包名是以 : 开头的，比如 :feature:utilcode:feature_utilcode_pkg，
+                           // com.blankj 表示扫描远端仓库以 com.blankj 开头的，比如 com.blankj:utilcode:xx
+    jumpScanLibRegex String// 和 onlyScanLibRegex 类似，不过是指要跳过哪些扫描的，和 onlyScanLibRegex 不能共存，onlyScanLibRegex 优先级更高
+}
+```
+
+好了，插件和依赖都配置完毕，下面介绍基本使用。
+
+### 基本使用
+
+```java
+public static final String TAG_NO_PARAM  = "TagNoParam";
+public static final String TAG_ONE_PARAM = "TagOneParam";
+
+@BusUtils.Bus(tag = TAG_NO_PARAM)
+public void noParamFun() {/* Do something */}
+
+@BusUtils.Bus(tag = TAG_ONE_PARAM)
+public void oneParamFun(String param) {/* Do something */}
+
+@Override
+public void onStart() {
+    super.onStart();
+    BusUtils.register(this);
+}
+
+@Override
+public void onStop() {
+    super.onStop();
+    BusUtils.unregister(this);
+}
+
+BusUtils.post(TAG_NO_PARAM);// noParamFun() will receive
+BusUtils.post(TAG_ONE_PARAM, "param");// oneParamFun() will receive
+```
+
+使用过 `EventBus` 的肯定一下子就能看懂。
+
+### 高级使用
+
+#### 粘性事件
+
+支持粘性事件，也就是先发送，然后在订阅的时候接收到之前发送的粘性事件，把其消费掉，使用方式和 `EventBus` 一致，就是在 `@BusUtils.Bus` 注解中设置 `sticky = true`，具体例子如下所示：
+```java
+public static final String TAG_NO_PARAM_STICKY  = "TagNoParamSticky";
+
+@BusUtils.Bus(tag = TAG_NO_PARAM_STICKY, sticky = true)
+public void noParamStickyFun() {/* Do something */}
+
+BusUtils.postSticky(TAG_NO_PARAM_STICKY);
+
+BusUtils.register(xxx);// will invoke noParamStickyFun
+
+BusUtils.removeSticky(TAG_NO_PARAM_STICKY);// When u needn't use the sticky, remove it
+
+BusUtils.unregister(xxx);
+```
+
+#### 线程切换
+
+线程切换使用的是 ThreadUtils 中的线程池，它具有安全的 Cached 线程池，以及 MAIN, IO, CPU, CACHED, SINGLE 线程池，默认不设置的话就是在提交的线程 POSTING，使用的话就是在 `@BusUtils.Bus` 注解中设置 `threadMode = BusUtils.ThreadMode.xx` 即可。
+
+
+## 规范
+
+要想工具用得舒服，规范肯定要遵守的，所谓无规矩不成方圆，不然五花八门的问题肯定一堆堆，这里推荐如下规范：
+
+* 持有事件的类和函数确保确保都是 `public` 的。
+* 由于 `BusUtils` 是用于模块内调用，所以可以写一个 `BusConfig` 的类来保存一个模块内所有 bus 的 `Tag`，方便查找到使用方及调用方。
+* `Tag` 中最好还能带有业务模块后缀名防止重复，是 sticky 类型的话也带上 sticky，指定具体线程的话也带上线程名，例如：`update_avatar_sticky_main_info` 这个 `Tag`，让人直接望文生义。
+* 如果能结合 **[AucFrame](https://github.com/Blankj/AucFrameTemplate)** 来使用，那就更规范不过了。
+* 对 `BusUtils` 中事件传输的的 `bean` 都需要 `keep` 下来，否则开启混淆后会找不到该实体对象而报错。
+
+
+使用已经介绍完毕，下面我们来和 `EventBus` 对比下性能。
+
+
+## 性能测试
+
+首先，把两者的事件定义好，因为比较的是事件达到的快慢，所以内部都是空实现即可，具体代码如下所示：
+
+```java
+@Subscribe
+public void eventBusFun(String param) {
+}
+
+@BusUtils.Bus(tag = "busUtilsFun")
+public void busUtilsFun(String param) {
+}
+```
+
+`BusUtils` 在编译时会根据 `@BusUtils.Bus` 注解生成一份记录 tag 和 方法签名的映射表，因为是在编译时完成的，这里我们通过反射来完成。
+
+```java
+@Before
+public void setUp() throws Exception {
+    // 这一步是在 AOP 的时候注入的，这里通过反射来注入 busUtilsFun 事件，效果是一样的。
+    ReflectUtils getInstance = ReflectUtils.reflect(BusUtils.class).method("getInstance");
+    getInstance.method("registerBus", "busUtilsFun", BusUtilsVsEventBusTest.class.getName(), "busUtilsFun", String.class.getName(), "param", false, "POSTING");
+}
+```
+
+通过比较如下几点的测试来完成对比：
+
+* 注册 10000 个订阅者，共执行 10 次取平均值
+* 向 1 个订阅者发送 * 1000000 次，共执行 10 次取平均值
+* 向 100 个订阅者发送 * 100000 次，共执行 10 次取平均值
+* 注销 10000 个订阅者，共执行 10 次取平均值
+
+测试机器如下所示：
+
+```
+macOS: 2.2GHz Intel Core i7 16GB
+一加6: Android 9 8GB
+```
+
+在 Android 上，我们加入 `EventBus` 的注解处理器来提升 `EventBus` 效率，让其在最优情况下和 `BusUtils` 比较。
+
+接下来，我们把测试的模板代码写好，方便后续可以直接把两者比较的代码往回调中塞入即可，具体代码如下所示：
+
+```java
+/**
+ * @param name       传入的测试函数名
+ * @param sampleSize 样本的数量
+ * @param times      每次执行的次数
+ * @param callback   比较的回调函数
+ */
+private void compareWithEventBus(String name, int sampleSize, int times, CompareCallback callback) {
+    long[][] dur = new long[2][sampleSize];
+    for (int i = 0; i < sampleSize; i++) {
+        long cur = System.currentTimeMillis();
+        for (int j = 0; j < times; j++) {
+            callback.runEventBus();
+        }
+        dur[0][i] = System.currentTimeMillis() - cur;
+        cur = System.currentTimeMillis();
+        for (int j = 0; j < times; j++) {
+            callback.runBusUtils();
+        }
+        dur[1][i] = System.currentTimeMillis() - cur;
+        callback.restState();
+    }
+    long eventBusAverageTime = 0;
+    long busUtilsAverageTime = 0;
+    for (int i = 0; i < sampleSize; i++) {
+        eventBusAverageTime += dur[0][i];
+        busUtilsAverageTime += dur[1][i];
+    }
+    System.out.println(
+            name +
+            "\nEventBusCostTime: " + eventBusAverageTime / sampleSize +
+            "\nBusUtilsCostTime: " + busUtilsAverageTime / sampleSize
+    );
+}
+
+public interface CompareCallback {
+    void runEventBus();
+    void runBusUtils();
+    void restState();
+}
+```
+
+下面就让我们来一一对比测试。
+
+### 注册 10000 个订阅者，共执行 10 次取平均值
+
+```java
+/**
+ * 注册 10000 个订阅者，共执行 10 次取平均值
+ */
+@Test
+public void compareRegister10000Times() {
+    final List<BusUtilsVsEventBusTest> eventBusTests = new ArrayList<>();
+    final List<BusUtilsVsEventBusTest> busUtilsTests = new ArrayList<>();
+    compareWithEventBus("Register 10000 times.", 10, 10000, new CompareCallback() {
+        @Override
+        public void runEventBus() {
+            BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+            EventBus.getDefault().register(test);
+            eventBusTests.add(test);
+        }
+        @Override
+        public void runBusUtils() {
+            BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+            BusUtils.register(test);
+            busUtilsTests.add(test);
+        }
+        @Override
+        public void restState() {
+            for (BusUtilsVsEventBusTest test : eventBusTests) {
+                EventBus.getDefault().unregister(test);
+            }
+            eventBusTests.clear();
+            for (BusUtilsVsEventBusTest test : busUtilsTests) {
+                BusUtils.unregister(test);
+            }
+            busUtilsTests.clear();
+        }
+    });
+}
+// MacOS Output:
+// Register 10000 times.
+// EventBusCostTime: 427
+// BusUtilsCostTime: 41
+
+// 一加6 Output:
+// Register 10000 times.
+// EventBusCostTime: 1268
+// BusUtilsCostTime: 399
+```
+
+### 向 1 个订阅者发送 * 1000000 次，共执行 10 次取平均值
+
+``` java
+/**
+ * 向 1 个订阅者发送 * 1000000 次，共执行 10 次取平均值
+ */
+@Test
+public void comparePostTo1Subscriber1000000Times() {
+    comparePostTemplate("Post to 1 subscriber 1000000 times.", 1, 1000000);
+}
+// MacOS Output:
+// Post to 1 subscriber 1000000 times.
+// EventBusCostTime: 145
+// BusUtilsCostTime: 33
+
+// 一加6 Output:
+// Post to 1 subscriber 1000000 times.
+// EventBusCostTime: 1247
+// BusUtilsCostTime: 696
+
+private void comparePostTemplate(String name, int subscribeNum, int postTimes) {
+    final List<BusUtilsVsEventBusTest> tests = new ArrayList<>();
+    for (int i = 0; i < subscribeNum; i++) {
+        BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+        EventBus.getDefault().register(test);
+        BusUtils.register(test);
+        tests.add(test);
+    }
+    compareWithEventBus(name, 10, postTimes, new CompareCallback() {
+        @Override
+        public void runEventBus() {
+            EventBus.getDefault().post("EventBus");
+        }
+        @Override
+        public void runBusUtils() {
+            BusUtils.post("busUtilsFun", "BusUtils");
+        }
+        @Override
+        public void restState() {
+        }
+    });
+    for (BusUtilsVsEventBusTest test : tests) {
+        EventBus.getDefault().unregister(test);
+        BusUtils.unregister(test);
+    }
+}
+```
+
+### 向 100 个订阅者发送 * 100000 次，共执行 10 次取平均值
+
+```java
+/**
+ * 向 100 个订阅者发送 * 100000 次，共执行 10 次取平均值
+ */
+@Test
+public void comparePostTo100Subscribers10000Times() {
+    comparePostTemplate("Post to 100 subscribers 100000 times.", 100, 100000);
+}
+// MacOS Output:
+// Post to 100 subscribers 100000 times.
+// EventBusCostTime: 139
+// BusUtilsCostTime: 79
+
+// 一加6 Output:
+// Post to 100 subscribers 100000 times.
+// EventBusCostTime: 3092
+// BusUtilsCostTime: 2900
+```
+
+### 注销 10000 个订阅者，共执行 10 次取平均值
+```java
+/**
+ * 注销 10000 个订阅者，共执行 10 次取平均值
+ */
+@Test
+public void compareUnregister10000Times() {
+    final List<BusUtilsVsEventBusTest> tests = new ArrayList<>();
+    for (int i = 0; i < 10000; i++) {
+        BusUtilsVsEventBusTest test = new BusUtilsVsEventBusTest();
+        EventBus.getDefault().register(test);
+        BusUtils.register(test);
+        tests.add(test);
+    }
+    compareWithEventBus("Unregister 10000 times.", 10, 1, new CompareCallback() {
+        @Override
+        public void runEventBus() {
+            for (BusUtilsVsEventBusTest test : tests) {
+                EventBus.getDefault().unregister(test);
+            }
+        }
+        @Override
+        public void runBusUtils() {
+            for (BusUtilsVsEventBusTest test : tests) {
+                BusUtils.unregister(test);
+            }
+        }
+        @Override
+        public void restState() {
+            for (BusUtilsVsEventBusTest test : tests) {
+                EventBus.getDefault().register(test);
+                BusUtils.register(test);
+            }
+        }
+    });
+    for (BusUtilsVsEventBusTest test : tests) {
+        EventBus.getDefault().unregister(test);
+        BusUtils.unregister(test);
+    }
+}
+// MacOS Output:
+// Unregister 10000 times.
+// EventBusCostTime: 231
+// BusUtilsCostTime: 23
+
+// 一加6 Output:
+// Unregister 10000 times.
+// EventBusCostTime: 800
+// BusUtilsCostTime: 199
+```
+
+## 结论
+
+为了方便观察，我们生成一份图表来比较两者之间的性能：
+
+![BusUtilsVsEventBusChart](https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/busutil_vs_eventbus.png)
+
+图表中分别对四个函数在 MacOS 和 OnePlus6 中的表现进行统计，每个函数中从左向右分别是 「MacOS 的 BusUtils」、「MacOS 的 EventBus」、「OnePlus6 的 BusUtils」、「OnePlus6 的 EventBus」，可以发现，BusUtils 在注册和注销上基本比 `EventBus` 要快上好几倍，BusUtils 在向少量订阅者发送多次事件比 `EventBus` 也快上好多，在向多个订阅者发送多次事件也比 `EventBus` 快上些许。
+
+基于以上说的这么多，如果你项目中事件总线用得比较频繁，那么可以试着用我的 `BusUtils` 来替代 `EventBus` 来提升性能，或者在新的项目中，你也可以直接使用性能更好的 `BusUtils`。
+
+下面来总结下 `BusUtils` 的优点：
+
+* `BusUtils` 是通过事件 `Tag` 来确定唯一事件的，所以接收函数支持无参或者一个参数，而 `EventBus` 只能通过 MessageEvent 来确定具体的接收者，只能接收一个参数，即便仅仅是通知，也需要定义一个 MessageEvent，所以，`BusUtils` 传参更灵活。
+* `BusUtils` 在应用到项目中后，编译后便会在 application 中生成 `__bus__.json` 事件列表，如上生成的事件列表如下所示：
+
+```json
+{
+  "BusUtilsClass": "com.blankj.utilcode.util.BusUtils",
+  "rightBus": {
+    "noParamFun": "{ desc: com.blankj.utilcode.pkg.feature.bus.BusActivity#noParamFun(), threadMode: POSTING }",
+    "oneParamFun": "{ desc: com.blankj.utilcode.pkg.feature.bus.BusActivity#oneParamFun(java.lang.String param), threadMode: POSTING }"
+  },
+  "wrongBus": {}
+}
+```
+
+修改 `oneParamFun` 为两个参数的话，为了确保项目不会因为 `BusUtils` 在运行时崩溃，`bus` 插件会使其在编译时就不过，此时 `__bus__.json` 文件如下所示，提示你参数个数不对：
+
+```json
+{
+  "BusUtilsClass": "com.blankj.utilcode.util.BusUtils",
+  "rightBus": {
+    "noParamFun": "{ desc: com.blankj.utilcode.pkg.feature.bus.BusActivity#noParamFun(), threadMode: POSTING }",
+  },
+  "wrongBus": {
+    "oneParamFun": "{ desc: com.blankj.utilcode.pkg.feature.bus.BusActivity#oneParamFun(java.lang.String param, java.lang.String param1), threadMode: POSTING, paramSize: 2 }"
+  }
+```
+
+~~同理，如果两个 bus 的 `Tag` 相同了，也会编译不过，提示你项目中存在 `Tag` 相同的 bus。~~（2.1 版本已支持 Tag 一对多及事件优先级）
+
+所以，`BusUtils` 比 `EventBus` 更友好。
+
+* `BusUtils` 比 `EventBus` 代码少得太多，`BusUtils` 的源码只有区区 300 行，而 `EventBus` 3000 行肯定是不止的哈。
+* `BusUtils` 比 `EventBus` 性能更好。
+
+
+## 原理
+
+### bus 插件原理分析
+
+bus 插件的源码在这里：[bus 插件源码传送门](https://github.com/Blankj/AndroidUtilCode/tree/master/plugin/bus-gradle-plugin)，该插件通过 Gradle 的 transform 来完成对 `BusUtils.init()` 做注入，下面来一步步分析：
+
+不明白 transform 的可以先去了解下，简单来说 transform 就是专门用来做字节码插入操作的，最常见的就是 AOP（面向切面编程），这部分我就不科普了，有兴趣的可以自己搜索了解。
+
+说到字节码操作，那就又有知识点了，想要上手快速简单的可以使用 `javassist`，不过，我选择了更强大快速的 `ASM`，这里我就不详细介绍了，有兴趣的可以自己去学习，`ASM` 其实也很简单的，在 [ASM Bytecode Outline](https://plugins.jetbrains.com/plugin/5918-asm-bytecode-outline) 这个插件帮助下写得还是很快的。
+
+通过 ASM 扫描出所有带有 `@BusUtils.Bus` 注解的函数，读取并保存注解的值和函数的参数信息，相关代码如下所示：
+
+```java
+@Override
+public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
+    className = name.replace("/", ".");
+    super.visit(version, access, name, signature, superName, interfaces);
+}
+
+@Override
+public MethodVisitor visitMethod(int access, String funName, String desc, String signature, String[] exceptions) {
+    if (cv == null) return null;
+    MethodVisitor mv = cv.visitMethod(access, funName, desc, signature, exceptions);
+    busInfo = null;
+    mv = new AdviceAdapter(Opcodes.ASM5, mv, access, funName, desc) {
+        @Override
+        public AnnotationVisitor visitAnnotation(String desc1, boolean visible) {
+            final AnnotationVisitor av = super.visitAnnotation(desc1, visible);
+            if (("L" + mBusUtilsClass + "$Bus;").equals(desc1)) {
+                busInfo = new BusInfo(className, funName);
+                funParamDesc = desc.substring(1, desc.indexOf(")"));
+                return new AnnotationVisitor(Opcodes.ASM5, av) {
+                    @Override
+                    public void visit(String name, Object value) {// 可获取注解的值
+                        super.visit(name, value);
+                        if ("tag".equals(name)) {
+                            tag = (String) value;
+                        } else if ("sticky".equals(name) && (Boolean) value) {
+                            busInfo.sticky = true;
+                        }
+                    }
+                    @Override
+                    public void visitEnum(String name, String desc, String value) {
+                        super.visitEnum(name, desc, value);
+                        if ("threadMode".equals(name)) {
+                            busInfo.threadMode = value;
+                        }
+                    }
+                };
+            }
+            return av;
+        }
+        @Override
+        public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index) {
+            super.visitLocalVariable(name, desc, signature, start, end, index);// 获取方法参数信息
+            if (busInfo != null && !funParamDesc.equals("")) {
+                if ("this".equals(name)) {
+                    return;
+                }
+                funParamDesc = funParamDesc.substring(desc.length());// 每次去除参数直到为 ""，那么之后的就不是参数了
+                busInfo.paramsInfo.add(new BusInfo.ParamsInfo(Type.getType(desc).getClassName(), name));
+                if (busInfo.isParamSizeNoMoreThanOne && busInfo.paramsInfo.size() > 1) {
+                    busInfo.isParamSizeNoMoreThanOne = false;
+                }
+            }
+        }
+        @Override
+        public void visitEnd() {
+            super.visitEnd();
+            if (busInfo != null) {
+                List<BusInfo> infoList = mBusMap.get(tag);
+                if (infoList == null) {
+                    infoList = new ArrayList<>();
+                    mBusMap.put(tag, infoList);
+                } else if (infoList.size() == 0) {
+                    mBusMap.put(tag, infoList);
+                } else if (infoList.size() == 1) {
+                    BusInfo info0 = infoList.get(0);
+                    info0.isTagRepeat = true;
+                    busInfo.isTagRepeat = true;
+                } else {
+                    busInfo.isTagRepeat = true;
+                }
+                infoList.add(busInfo);
+            }
+        }
+    };
+    return mv;
+}
+```
+
+然后往 `BusUtils.init()` 插入扫描出来的内容，比如上面提到的 `oneParamFun` 这个函数，那么其最终插入的代码如下所示：
+
+```java
+
+private void init() {
+    this.registerBus("TagOneParam", "com.blankj.bus.BusTest", "oneParamFun", "java.lang.String", "param", false, "POSTING");
+}
+```
+
+其 ASM 插入的代码如下所示：
+
+```java
+@Override
+public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+    if (!"init".equals(name)) {
+        return super.visitMethod(access, name, descriptor, signature, exceptions);
+    }
+    // 往 init() 函数中写入
+    if (cv == null) return null;
+    MethodVisitor mv = cv.visitMethod(access, name, descriptor, signature, exceptions);
+    mv = new AdviceAdapter(Opcodes.ASM5, mv, access, name, descriptor) {
+        @Override
+        public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
+            return super.visitAnnotation(desc, visible);
+        }
+        @Override
+        protected void onMethodEnter() {
+            super.onMethodEnter();
+        }
+        @Override
+        protected void onMethodExit(int opcode) {
+            super.onMethodExit(opcode);
+            for (Map.Entry<String, List<BusInfo>> busEntry : mBusMap.entrySet()) {
+                List<BusInfo> infoList = busEntry.getValue();
+                if (infoList.size() != 1) continue;
+                BusInfo busInfo = infoList.get(0);
+                if (!busInfo.isParamSizeNoMoreThanOne) continue;
+                mv.visitVarInsn(ALOAD, 0);
+                mv.visitLdcInsn(busEntry.getKey());
+                mv.visitLdcInsn(busInfo.className);
+                mv.visitLdcInsn(busInfo.funName);
+                if (busInfo.paramsInfo.size() == 1) {
+                    mv.visitLdcInsn(busInfo.paramsInfo.get(0).className);
+                    mv.visitLdcInsn(busInfo.paramsInfo.get(0).name);
+                } else {
+                    mv.visitLdcInsn("");
+                    mv.visitLdcInsn("");
+                }
+                mv.visitInsn(busInfo.sticky ? ICONST_1 : ICONST_0);
+                mv.visitLdcInsn(busInfo.threadMode);
+                mv.visitMethodInsn(INVOKESPECIAL, mBusUtilsClass, "registerBus", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZLjava/lang/String;)V", false);
+            }
+        }
+    };
+    return mv;
+}
+```
+
+### BusUtils 原理分析
+
+接下来看下 `BusUtils.registerBus` 的实现：
+
+```java
+private void registerBus(String tag,
+                         String className, String funName, String paramType, String paramName,
+                         boolean sticky, String threadMode) {
+    mTag_BusInfoMap.put(tag, new BusInfo(className, funName, paramType, paramName, sticky, threadMode));
+}
+```
+
+很简单，就是往 `mTag_BusInfoMap` 中插入了 key 为 `tag`，value 为 `BusInfo` 的一个实例，这样便把一个事件保留了下来。
+
+接下来就是使用了，一开始我们都是先 register，源码如下所示：
+
+```java
+public static void register(final Object bus) {
+    getInstance().registerInner(bus);
+}
+
+private void registerInner(final Object bus) {
+    if (bus == null) return;
+    String className = bus.getClass().getName();
+    synchronized (mClassName_BusesMap) {
+        Set<Object> buses = mClassName_BusesMap.get(className);
+        if (buses == null) {
+            buses = new CopyOnWriteArraySet<>();
+            mClassName_BusesMap.put(className, buses);
+        }
+        buses.add(bus);
+    }
+    processSticky(bus);
+}
+```
+
+我们获取 bus 的类名，然后对 `mClassName_BusesMap` 加锁来把它插入到 `mClassName_BusesMap` 的 value 的集合中，可以看到我们用了线程安全的 `CopyOnWriteArraySet` 集合，然后还需要处理下之前是否订阅过粘性事件 `processSticky`，到这里 register 便结束了。
+
+然后就是 `post` 来发送事件了，源码如下：
+
+```java
+public static void post(final String tag) {
+    post(tag, NULL);
+}
+
+public static void post(final String tag, final Object arg) {
+    getInstance().postInner(tag, arg);
+}
+
+private void postInner(final String tag, final Object arg) {
+    postInner(tag, arg, false);
+}
+
+private void postInner(final String tag, final Object arg, final boolean sticky) {
+    BusInfo busInfo = mTag_BusInfoMap.get(tag);
+    if (busInfo == null) {
+        Log.e(TAG, "The bus of tag <" + tag + "> is not exists.");
+        return;
+    }
+    if (busInfo.method == null) {
+        Method method = getMethodByBusInfo(busInfo);
+        if (method == null) {
+            return;
+        }
+        busInfo.method = method;
+    }
+    invokeMethod(tag, arg, busInfo, sticky);
+}
+
+private Method getMethodByBusInfo(BusInfo busInfo) {
+    try {
+        if ("".equals(busInfo.paramType)) {
+            return Class.forName(busInfo.className).getDeclaredMethod(busInfo.funName);
+        } else {
+            return Class.forName(busInfo.className).getDeclaredMethod(busInfo.funName, Class.forName(busInfo.paramType));
+        }
+    } catch (ClassNotFoundException e) {
+        e.printStackTrace();
+    } catch (NoSuchMethodException e) {
+        e.printStackTrace();
+    }
+    return null;
+}
+
+private void invokeMethod(final String tag, final Object arg, final BusInfo busInfo, final boolean sticky) {
+    Runnable runnable = new Runnable() {
+        @Override
+        public void run() {
+            realInvokeMethod(tag, arg, busInfo, sticky);
+        }
+    };
+    switch (busInfo.threadMode) {
+        case "MAIN":
+            Utils.runOnUiThread(runnable);
+            return;
+        case "IO":
+            ThreadUtils.getIoPool().execute(runnable);
+            return;
+        case "CPU":
+            ThreadUtils.getCpuPool().execute(runnable);
+            return;
+        case "CACHED":
+            ThreadUtils.getCachedPool().execute(runnable);
+            return;
+        case "SINGLE":
+            ThreadUtils.getSinglePool().execute(runnable);
+            return;
+        default:
+            runnable.run();
+    }
+}
+
+private void realInvokeMethod(final String tag, Object arg, BusInfo busInfo, boolean sticky) {
+    Set<Object> buses = mClassName_BusesMap.get(busInfo.className);
+    if (buses == null || buses.size() == 0) {
+        if (!sticky) {
+            Log.e(TAG, "The bus of tag <" + tag + "> was not registered before.");
+            return;
+        } else {
+            return;
+        }
+    }
+    try {
+        if (arg == NULL) {
+            for (Object bus : buses) {
+                busInfo.method.invoke(bus);
+            }
+        } else {
+            for (Object bus : buses) {
+                busInfo.method.invoke(bus, arg);
+            }
+        }
+    } catch (IllegalAccessException e) {
+        e.printStackTrace();
+    } catch (InvocationTargetException e) {
+        e.printStackTrace();
+    }
+}
+```
+
+可以看到代码还是比较多的，不过别急，我们一步步来还是很简单的，首先在我们之前注入的 `mTag_BusInfoMap` 中查找是否有该 `tag` 的 `BusInfo`，没有的话就输出错误日志直接返回。
+
+然后我们根据获取到的 `BusInfo` 来找到 `method` 实例，`BusInfo` 第一次会把 `method` 保存在实例中，之后调用的话直接从实例中取出 `method` 即可。
+
+接着我们从 `BusInfo` 中取出线程信息，最后在线程中执行 `method` 的反射，大体就是这样，具体细节的话还是需要自己分析源码。
+
+最后就是 `unregister` 了：
+
+```java
+public static void unregister(final Object bus) {
+    getInstance().unregisterInner(bus);
+}
+
+private void unregisterInner(final Object bus) {
+    if (bus == null) return;
+    String className = bus.getClass().getName();
+    synchronized (mClassName_BusesMap) {
+        Set<Object> buses = mClassName_BusesMap.get(className);
+        if (buses == null || !buses.contains(bus)) {
+            Log.e(TAG, "The bus of <" + bus + "> was not registered before.");
+            return;
+        }
+        buses.remove(bus);
+    }
+}
+```
+
+`unregister` 和 `register` 相反，就是从 `mClassName_BusesMap` 的 value 集合中移除，同样需要对 `mClassName_BusesMap` 加锁哦。
+
+
+## [Change Log](https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/bus-gradle-plugin/CHANGELOG.md)
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/build.gradle b/plugin/bus-gradle-plugin/build.gradle
new file mode 100755
index 0000000000..68e43c6867
--- /dev/null
+++ b/plugin/bus-gradle-plugin/build.gradle
@@ -0,0 +1,42 @@
+apply {
+    plugin "groovy"
+    plugin "java-gradle-plugin"
+}
+
+gradlePlugin {
+    plugins {
+        busPlugin {
+            id = Config.plugins.plugin_bus.id
+            implementationClass = 'com.blankj.bus.BusPlugin'
+        }
+    }
+}
+
+dependencies {
+    compileOnly Config.plugins.plugin_gradle.path
+    implementation Config.modules.plugin_lib_base_transform.remotePath
+    implementation Config.libs.commons_io.path
+    implementation gradleApi()
+    implementation localGroovy()
+
+    testImplementation Config.libs.test_junit.path
+    testImplementation Config.plugins.plugin_gradle.path
+}
+
+sourceSets {
+    main {
+        groovy {
+            srcDirs += 'src/main/java'
+        }
+    }
+}
+
+ext {
+    groupId = Config.plugins.plugin_bus.groupId
+    artifactId = Config.plugins.plugin_bus.artifactId
+    version = Config.plugins.plugin_bus.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+apply from: "${rootDir.path}/config/publish.gradle"
+//./gradlew clean :plugin_bus-gradle-plugin:mavenLocal    // 上传到本地 mavenLocal
+//./gradlew clean :plugin_bus-gradle-plugin:bintrayUpload // 上传到 jcenter
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusClassVisitor.java b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusClassVisitor.java
new file mode 100644
index 0000000000..581c984af4
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusClassVisitor.java
@@ -0,0 +1,119 @@
+package com.blankj.bus;
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.Label;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+import org.objectweb.asm.commons.AdviceAdapter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class BusClassVisitor extends ClassVisitor {
+
+    private Map<String, List<BusInfo>> mBusMap;
+
+    private String  className;
+    private BusInfo busInfo;
+    private String  tag;
+    private String  funParamDesc;
+    private String  mBusUtilsClass;
+    private boolean isStartVisitParams;
+
+    public BusClassVisitor(ClassVisitor classVisitor, Map<String, List<BusInfo>> busMap, String busUtilsClass) {
+        super(Opcodes.ASM5, classVisitor);
+        mBusMap = busMap;
+        mBusUtilsClass = busUtilsClass.replace(".", "/");
+    }
+
+    @Override
+    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
+        className = name.replace("/", ".");
+        super.visit(version, access, name, signature, superName, interfaces);
+    }
+
+    @Override
+    public MethodVisitor visitMethod(int access, String funName, String desc, String signature, String[] exceptions) {
+        if (cv == null) return null;
+        MethodVisitor mv = cv.visitMethod(access, funName, desc, signature, exceptions);
+        busInfo = null;
+        isStartVisitParams = false;
+        mv = new AdviceAdapter(Opcodes.ASM5, mv, access, funName, desc) {
+            @Override
+            public AnnotationVisitor visitAnnotation(String desc1, boolean visible) {
+                final AnnotationVisitor av = super.visitAnnotation(desc1, visible);
+                if (("L" + mBusUtilsClass + "$Bus;").equals(desc1)) {
+                    busInfo = new BusInfo(className, funName);
+                    funParamDesc = desc.substring(1, desc.indexOf(")"));
+                    return new AnnotationVisitor(Opcodes.ASM5, av) {
+                        @Override
+                        public void visit(String name, Object value) {// 可获取注解的值
+                            super.visit(name, value);
+                            if ("tag".equals(name)) {
+                                tag = (String) value;
+                            } else if ("sticky".equals(name) && (Boolean) value) {
+                                busInfo.sticky = true;
+                            } else if ("priority".equals(name)) {
+                                busInfo.priority = (int) value;
+                            }
+                        }
+
+                        @Override
+                        public void visitEnum(String name, String desc, String value) {
+                            super.visitEnum(name, desc, value);
+                            if ("threadMode".equals(name)) {
+                                busInfo.threadMode = value;
+                            }
+                        }
+                    };
+                }
+                return av;
+            }
+
+            @Override
+            public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index) {
+                super.visitLocalVariable(name, desc, signature, start, end, index);// 获取方法参数信息
+                if (busInfo != null && !funParamDesc.equals("")) {
+                    if (!isStartVisitParams && index != 0) {
+                        return;
+                    }
+                    isStartVisitParams = true;
+                    if ("this".equals(name)) {
+                        return;
+                    }
+                    funParamDesc = funParamDesc.substring(desc.length());// 每次去除参数直到为 ""，那么之后的就不是参数了
+                    busInfo.paramsInfo.add(new BusInfo.ParamsInfo(Type.getType(desc).getClassName(), name));
+                    if (busInfo.isParamSizeNoMoreThanOne && busInfo.paramsInfo.size() > 1) {
+                        busInfo.isParamSizeNoMoreThanOne = false;
+                    }
+                }
+            }
+
+            @Override
+            public void visitEnd() {
+                super.visitEnd();
+                if (busInfo != null) {
+                    List<BusInfo> infoList = mBusMap.get(tag);
+                    if (infoList == null) {
+                        infoList = new ArrayList<>();
+                        mBusMap.put(tag, infoList);
+                    }
+                    infoList.add(busInfo);
+                }
+            }
+        };
+
+        return mv;
+    }
+}
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusExtension.groovy b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusExtension.groovy
new file mode 100755
index 0000000000..14d296b2d7
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusExtension.groovy
@@ -0,0 +1,19 @@
+package com.blankj.bus;
+
+class BusExtension {
+
+    boolean abortOnError = true;
+    String busUtilsClass = "com.blankj.utilcode.util.BusUtils";
+    String onlyScanLibRegex = ""
+    String jumpScanLibRegex = ""
+
+    @Override
+    String toString() {
+        return "BusExtension { " +
+                "abortOnError: " + abortOnError +
+                ", busUtilsClass: " + busUtilsClass +
+                (onlyScanLibRegex == "" ? "" : ", onlyScanLibRegex: " + onlyScanLibRegex) +
+                (jumpScanLibRegex == "" ? "" : ", jumpScanLibRegex: " + jumpScanLibRegex) +
+                " }";
+    }
+}
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusInfo.java b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusInfo.java
new file mode 100644
index 0000000000..060c5b866e
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusInfo.java
@@ -0,0 +1,60 @@
+package com.blankj.bus;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/10
+ *     desc  :
+ * </pre>
+ */
+public class BusInfo {
+
+    public String           className;                // 函数所在类名
+    public String           funName;                  // 方法名
+    public List<ParamsInfo> paramsInfo;               // 参数列表信息
+    public boolean          sticky;                   // 是否粘性
+    public String           threadMode;               // 线程模式
+    public int              priority;                 // 优先级
+    public boolean          isParamSizeNoMoreThanOne; // 参数是否不多于 1 个
+
+    public BusInfo(String className, String funName) {
+        this.className = className;
+        this.funName = funName;
+        paramsInfo = new ArrayList<>();
+        sticky = false;
+        threadMode = "POSTING";
+        priority = 0;
+        isParamSizeNoMoreThanOne = true;
+    }
+
+    @Override
+    public String toString() {
+        String paramsInfoString = paramsInfo.toString();
+        return "{ desc: " + className + "#" + funName +
+                "(" + paramsInfoString.substring(1, paramsInfoString.length() - 1) + ")" +
+                (!sticky ? "" : ", sticky: true") +
+                (threadMode.equals("POSTING") ? "" : ", threadMode: " + threadMode) +
+                (priority == 0 ? "" : ", priority: " + priority) +
+                (isParamSizeNoMoreThanOne ? "" : ", paramSize: " + paramsInfo.size()) +
+                " }";
+    }
+
+    public static class ParamsInfo {
+        public String className;
+        public String name;
+
+        public ParamsInfo(String className, String name) {
+            this.className = className;
+            this.name = name;
+        }
+
+        @Override
+        public String toString() {
+            return ("".equals(className) ? "" : (className + " " + name));
+        }
+    }
+}
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusInject.groovy b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusInject.groovy
new file mode 100755
index 0000000000..10eb979335
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusInject.groovy
@@ -0,0 +1,45 @@
+package com.blankj.bus
+
+import com.blankj.base_transform.util.ZipUtils
+import org.apache.commons.io.FileUtils
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.ClassVisitor
+import org.objectweb.asm.ClassWriter
+
+class BusInject {
+
+    static void start(Map<String, BusInfo> busMap, File busUtilsTransformFile, String busUtilsClass) {
+        if (busUtilsTransformFile.getPath().endsWith(".jar")) {
+            String jarPath = busUtilsTransformFile.getAbsolutePath()
+            String decompressedJarPath = jarPath.substring(0, jarPath.length() - 4);
+            File decompressedJar = new File(decompressedJarPath)
+            ZipUtils.unzipFile(busUtilsTransformFile, decompressedJar)
+
+            File busUtilsFile = new File(
+                    decompressedJarPath + Config.FILE_SEP +
+                            busUtilsClass.replace('.', Config.FILE_SEP) + '.class'
+            )
+
+            inject2BusUtils(busUtilsFile, busMap, busUtilsClass)
+
+            FileUtils.forceDelete(busUtilsTransformFile)
+            ZipUtils.zipFiles(Arrays.asList(decompressedJar.listFiles()), busUtilsTransformFile)
+            FileUtils.forceDelete(decompressedJar)
+        } else {
+            File busUtilsFile = new File(
+                    busUtilsTransformFile.getAbsolutePath() + Config.FILE_SEP +
+                            busUtilsClass.replace('.', Config.FILE_SEP) + '.class'
+            )
+
+            inject2BusUtils(busUtilsFile, busMap, busUtilsClass)
+        }
+    }
+
+    private static void inject2BusUtils(File busUtilsFile, Map<String, BusInfo> busMap, String busUtilsClass) {
+        ClassReader cr = new ClassReader(busUtilsFile.bytes);
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new BusUtilsClassVisitor(cw, busMap, busUtilsClass);
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+        FileUtils.writeByteArrayToFile(busUtilsFile, cw.toByteArray())
+    }
+}
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusPlugin.groovy b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusPlugin.groovy
new file mode 100755
index 0000000000..4a4286fe3e
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusPlugin.groovy
@@ -0,0 +1,133 @@
+package com.blankj.bus
+
+import com.android.build.api.transform.JarInput
+import com.blankj.base_transform.BaseTransformPlugin
+import com.blankj.base_transform.util.JsonUtils
+import org.apache.commons.io.FileUtils
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.ClassVisitor
+import org.objectweb.asm.ClassWriter
+
+import java.util.regex.Pattern
+
+class BusPlugin extends BaseTransformPlugin<BusExtension> {
+
+    String busUtilsClass
+    File jsonFile
+    Map<String, List<BusInfo>> busMap = [:]
+    File busUtilsTransformFile
+
+    @Override
+    String getPluginName() {
+        return Config.EXT_NAME
+    }
+
+    @Override
+    void onScanStarted() {
+        busUtilsClass = ext.busUtilsClass
+        if (busUtilsClass.trim().equals("")) {
+            throw new Exception("BusExtension's busUtilsClass is empty.")
+        }
+
+        jsonFile = new File(mProject.projectDir.getAbsolutePath(), "__bus__.json")
+        FileUtils.write(jsonFile, "{}")
+    }
+
+    @Override
+    boolean isIgnoreScan(JarInput input) {
+        def jarName = input.name
+        if (jarName.contains("utilcode")) {
+            return false
+        }
+
+        if (ext.onlyScanLibRegex != null && ext.onlyScanLibRegex.trim().length() > 0) {
+            return !Pattern.matches(ext.onlyScanLibRegex, jarName)
+        }
+
+        if (ext.jumpScanLibRegex != null && ext.jumpScanLibRegex.trim().length() > 0) {
+            if (Pattern.matches(ext.jumpScanLibRegex, jarName)) {
+                return true
+            }
+        }
+
+        for (exclude in Config.EXCLUDE_LIBS_START_WITH) {
+            if (jarName.startsWith(exclude)) {
+                return true
+            }
+        }
+        return false
+    }
+
+    @Override
+    void scanClassFile(File classFile, String className, File originScannedJarOrDir) {
+        if (busUtilsClass == className) {
+            busUtilsTransformFile = originScannedJarOrDir
+            log("<BusUtils transform file>: $originScannedJarOrDir")
+        }
+
+        ClassReader cr = new ClassReader(classFile.bytes);
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new BusClassVisitor(cw, busMap, busUtilsClass);
+        try {
+            cr.accept(cv, ClassReader.SKIP_FRAMES);
+        } catch (Exception ignore) {
+            ignore.printStackTrace()
+        }
+    }
+
+    @Override
+    void onScanFinished() {
+        if (busUtilsTransformFile != null) {
+            if (busMap.isEmpty()) {
+                log("no bus.")
+            } else {
+                busMap.each { String tag, List<BusInfo> infoList ->
+                    infoList.sort(new Comparator<BusInfo>() {
+                        @Override
+                        int compare(BusInfo t0, BusInfo t1) {
+                            return t1.priority - t0.priority
+                        }
+                    })
+                }
+
+                Map<String, List<String>> rightBus = [:]
+                Map<String, List<String>> wrongBus = [:]
+                busMap.each { String tag, List<BusInfo> infoList ->
+                    List<String> rightInfoString = []
+                    List<String> wrongInfoString = []
+                    infoList.each { BusInfo info ->
+                        if (info.isParamSizeNoMoreThanOne) {
+                            rightInfoString.add(info.toString())
+                        } else {
+                            wrongInfoString.add(info.toString())
+                        }
+                    }
+                    if (!rightInfoString.isEmpty()) {
+                        rightBus.put(tag, rightInfoString)
+                    }
+                    if (!wrongInfoString.isEmpty()) {
+                        wrongBus.put(tag, wrongInfoString)
+                    }
+                }
+                Map busDetails = [:]
+                busDetails.put("BusUtilsClass", ext.busUtilsClass)
+                busDetails.put("rightBus", rightBus)
+                busDetails.put("wrongBus", wrongBus)
+                String busJson = JsonUtils.getFormatJson(busDetails)
+                log(jsonFile.toString() + ": " + busJson)
+                FileUtils.write(jsonFile, busJson)
+
+                if (wrongBus.size() > 0) {
+                    if (ext.abortOnError) {
+                        throw new Exception("These buses is not right: " + wrongBus +
+                                "\n u can check it in file: " + jsonFile.toString())
+                    }
+                }
+
+                BusInject.start(busMap, busUtilsTransformFile, ext.busUtilsClass)
+            }
+        } else {
+            throw new Exception("No BusUtils of ${ext.busUtilsClass} in $mProject.")
+        }
+    }
+}
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusUtilsClassVisitor.java b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusUtilsClassVisitor.java
new file mode 100644
index 0000000000..97523cd645
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/BusUtilsClassVisitor.java
@@ -0,0 +1,79 @@
+package com.blankj.bus;
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.commons.AdviceAdapter;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class BusUtilsClassVisitor extends ClassVisitor {
+
+    private Map<String, List<BusInfo>> mBusMap;
+    private String                     mBusUtilsClass;
+
+    public BusUtilsClassVisitor(ClassVisitor classVisitor, Map<String, List<BusInfo>> busMap, String busUtilsClass) {
+        super(Opcodes.ASM5, classVisitor);
+        mBusMap = busMap;
+        mBusUtilsClass = busUtilsClass.replace(".", "/");
+    }
+
+    @Override
+    public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+        if (!"init".equals(name)) {
+            return super.visitMethod(access, name, descriptor, signature, exceptions);
+        }
+        // 往 init() 函数中写入
+        if (cv == null) return null;
+        MethodVisitor mv = cv.visitMethod(access, name, descriptor, signature, exceptions);
+        mv = new AdviceAdapter(Opcodes.ASM5, mv, access, name, descriptor) {
+
+            @Override
+            public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
+                return super.visitAnnotation(desc, visible);
+            }
+
+            @Override
+            protected void onMethodEnter() {
+                super.onMethodEnter();
+            }
+
+            @Override
+            protected void onMethodExit(int opcode) {
+                super.onMethodExit(opcode);
+                for (Map.Entry<String, List<BusInfo>> busEntry : mBusMap.entrySet()) {
+                    List<BusInfo> infoList = busEntry.getValue();
+                    for (BusInfo busInfo : infoList) {
+                        if (!busInfo.isParamSizeNoMoreThanOne) continue;
+                        mv.visitVarInsn(ALOAD, 0);
+                        mv.visitLdcInsn(busEntry.getKey());
+                        mv.visitLdcInsn(busInfo.className);
+                        mv.visitLdcInsn(busInfo.funName);
+                        if (busInfo.paramsInfo.size() == 1) {
+                            mv.visitLdcInsn(busInfo.paramsInfo.get(0).className);
+                            mv.visitLdcInsn(busInfo.paramsInfo.get(0).name);
+                        } else {
+                            mv.visitLdcInsn("");
+                            mv.visitLdcInsn("");
+                        }
+                        mv.visitInsn(busInfo.sticky ? ICONST_1 : ICONST_0);
+                        mv.visitLdcInsn(busInfo.threadMode);
+                        mv.visitIntInsn(SIPUSH, busInfo.priority);
+                        mv.visitMethodInsn(INVOKESPECIAL, mBusUtilsClass, "registerBus", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZLjava/lang/String;I)V", false);
+                    }
+                }
+            }
+        };
+        return mv;
+    }
+}
diff --git a/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/Config.groovy b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/Config.groovy
new file mode 100755
index 0000000000..a17b1c9c55
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/main/java/com/blankj/bus/Config.groovy
@@ -0,0 +1,21 @@
+package com.blankj.bus
+
+import com.blankj.base_transform.BaseTransformConfig
+
+class Config {
+
+    public static final String EXT_NAME = 'bus'
+
+    public static final List<String> EXCLUDE_LIBS_START_WITH = [
+            'com.android.support',
+            'androidx',
+            'com.google',
+            'android.arch',
+            'org.jetbrains',
+            'com.squareup',
+            'org.greenrobot',
+            'com.github.bumptech.glide'
+    ]
+
+    public static final String FILE_SEP = BaseTransformConfig.FILE_SEP
+}
diff --git a/plugin/bus-gradle-plugin/src/test/java/com/blankj/bus/BusTest.java b/plugin/bus-gradle-plugin/src/test/java/com/blankj/bus/BusTest.java
new file mode 100644
index 0000000000..b3af21cddb
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/test/java/com/blankj/bus/BusTest.java
@@ -0,0 +1,126 @@
+package com.blankj.bus;
+
+
+import org.apache.commons.io.FileUtils;
+import org.junit.Test;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.ClassWriter;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2019/07/09
+ *     desc  :
+ * </pre>
+ */
+public class BusTest {
+
+    private static final String TAG_NO_PARAM         = "TagNoParam";
+    private static final String TAG_ONE_PARAM        = "TagOneParam";
+    private static final String TAG_NO_PARAM_STICKY  = "TagNoParamSticky";
+    private static final String TAG_ONE_PARAM_STICKY = "TagOneParamSticky";
+
+    private String[] arr = new String[]{"0", "1"};
+    private String[] arr2 = new String[]{"0", "1"};
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM)
+    public void noParamFun() {
+        System.out.println("noParam");
+    }
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM, priority = 1)
+    public void sameTagP1Fun() {
+        System.out.println("noParam");
+    }
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM)
+    public void sameTagParam2Fun(int arg0, Object arg1) {
+        System.out.println("params2");
+    }
+
+    @BusUtils.Bus(tag = "params2")
+    public void param2Fun(int arg0, Object arg1) {
+        System.out.println("params2");
+    }
+
+    @BusUtils.Bus(tag = TAG_ONE_PARAM)
+    public void oneParamFun(String param) {
+        System.out.println(param);
+    }
+
+    @BusUtils.Bus(tag = TAG_NO_PARAM_STICKY, sticky = true)
+    public void noParamStickyFun() {
+        System.out.println("noParamSticky");
+    }
+
+    @BusUtils.Bus(tag = TAG_ONE_PARAM_STICKY, sticky = true)
+    public void oneParamStickyFun(Callback callback) {
+        for (String str : arr) {
+            System.out.println(str);
+        }
+        for (String str1 : arr2) {
+            System.out.println(str1);
+        }
+        if (callback != null) {
+            System.out.println(callback.call());
+        }
+    }
+
+    @BusUtils.Bus(tag = "manyparam", threadMode = BusUtils.ThreadMode.SINGLE)
+    public void haha(int a, int b) {
+        final Thread thread = Thread.currentThread();
+        System.out.println(new Callback() {
+            @Override
+            public String call() {
+                return thread.toString();
+            }
+        });
+    }
+
+    @Test
+    public void testInject() throws IOException {
+        inject2BusUtils(getBuses());
+    }
+
+    private static Map<String, List<BusInfo>> getBuses() throws IOException {
+        Map<String, List<BusInfo>> busMap = new HashMap<>();
+
+        ClassReader cr = new ClassReader(BusTest.class.getName());
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new BusClassVisitor(cw, busMap, BusUtils.class.getName());
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+
+        for (List<BusInfo> value : busMap.values()) {
+            value.sort(new Comparator<BusInfo>() {
+                @Override
+                public int compare(BusInfo t0, BusInfo t1) {
+                    return t1.priority - t0.priority;
+                }
+            });
+        }
+        System.out.println("busMap = " + busMap);
+        return busMap;
+    }
+
+    private static void inject2BusUtils(Map<String, List<BusInfo>> busMap) throws IOException {
+        ClassReader cr = new ClassReader(BusUtils.class.getName());
+        ClassWriter cw = new ClassWriter(cr, 0);
+        ClassVisitor cv = new BusUtilsClassVisitor(cw, busMap, BusUtils.class.getName());
+        cr.accept(cv, ClassReader.SKIP_FRAMES);
+
+        FileUtils.writeByteArrayToFile(new File("BusUtils2333.class"), cw.toByteArray());
+    }
+
+    public interface Callback {
+        String call();
+    }
+}
\ No newline at end of file
diff --git a/plugin/bus-gradle-plugin/src/test/java/com/blankj/bus/BusUtils.java b/plugin/bus-gradle-plugin/src/test/java/com/blankj/bus/BusUtils.java
new file mode 100644
index 0000000000..4f7dfd37ff
--- /dev/null
+++ b/plugin/bus-gradle-plugin/src/test/java/com/blankj/bus/BusUtils.java
@@ -0,0 +1,387 @@
+package com.blankj.bus;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.CopyOnWriteArraySet;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/10/02
+ *     desc  : utils about bus
+ * </pre>
+ */
+public final class BusUtils {
+
+    private static final Object NULL = "nULl";
+    private static final String TAG  = "BusUtils";
+
+    private final Map<String, List<BusInfo>> mTag_BusInfoListMap = new HashMap<>();
+
+    private final Map<String, Set<Object>>         mClassName_BusesMap          = new ConcurrentHashMap<>();
+    private final Map<String, List<String>>        mClassName_TagsMap           = new HashMap<>();
+    private final Map<String, Map<String, Object>> mClassName_Tag_Arg4StickyMap = new ConcurrentHashMap<>();
+
+    private BusUtils() {
+        init();
+    }
+
+    /**
+     * It'll be injected the bus who have {@link Bus} annotation
+     * by function of {@link BusUtils#registerBus} when execute transform task.
+     */
+    private void init() {/*inject*/}
+
+    private void registerBus(String tag,
+                             String className, String funName, String paramType, String paramName,
+                             boolean sticky, String threadMode) {
+        registerBus(tag, className, funName, paramType, paramName, sticky, threadMode, 0);
+    }
+
+    private void registerBus(String tag,
+                             String className, String funName, String paramType, String paramName,
+                             boolean sticky, String threadMode, int priority) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            busInfoList = new ArrayList<>();
+            mTag_BusInfoListMap.put(tag, busInfoList);
+        }
+        busInfoList.add(new BusInfo(className, funName, paramType, paramName, sticky, threadMode, priority));
+    }
+
+    public static void register(final Object bus) {
+        getInstance().registerInner(bus);
+    }
+
+    public static void unregister(final Object bus) {
+        getInstance().unregisterInner(bus);
+    }
+
+    public static void post(final String tag) {
+        post(tag, NULL);
+    }
+
+    public static void post(final String tag, final Object arg) {
+        getInstance().postInner(tag, arg);
+    }
+
+    public static void postSticky(final String tag) {
+        postSticky(tag, NULL);
+    }
+
+    public static void postSticky(final String tag, final Object arg) {
+        getInstance().postStickyInner(tag, arg);
+    }
+
+    public static void removeSticky(final String tag) {
+        getInstance().removeStickyInner(tag);
+    }
+
+    public static String toString_() {
+        return getInstance().toString();
+    }
+
+    @Override
+    public String toString() {
+        return "BusUtils: " + mTag_BusInfoListMap;
+    }
+
+    private static BusUtils getInstance() {
+        return LazyHolder.INSTANCE;
+    }
+
+    private void registerInner(final Object bus) {
+        if (bus == null) return;
+        Class aClass = bus.getClass();
+        String className = aClass.getName();
+        synchronized (mClassName_BusesMap) {
+            Set<Object> buses = mClassName_BusesMap.get(className);
+            if (buses == null) {
+                buses = new CopyOnWriteArraySet<>();
+                mClassName_BusesMap.put(className, buses);
+            }
+            buses.add(bus);
+        }
+        List<String> tags = mClassName_TagsMap.get(className);
+        if (tags == null) {
+            synchronized (mClassName_TagsMap) {
+                tags = mClassName_TagsMap.get(className);
+                if (tags == null) {
+                    tags = new ArrayList<>();
+                    for (Map.Entry<String, List<BusInfo>> entry : mTag_BusInfoListMap.entrySet()) {
+                        for (BusInfo busInfo : entry.getValue()) {
+                            try {
+                                if (Class.forName(busInfo.className).isAssignableFrom(aClass)) {
+                                    tags.add(entry.getKey());
+                                    busInfo.classNames.add(className);
+                                }
+                            } catch (ClassNotFoundException e) {
+                                e.printStackTrace();
+                            }
+                        }
+                    }
+                    mClassName_TagsMap.put(className, tags);
+                }
+            }
+        }
+        processSticky(bus);
+    }
+
+    private void processSticky(final Object bus) {
+        Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(bus.getClass().getName());
+        if (tagArgMap == null) return;
+        synchronized (mClassName_Tag_Arg4StickyMap) {
+            for (Map.Entry<String, Object> tagArgEntry : tagArgMap.entrySet()) {
+                postInner(tagArgEntry.getKey(), tagArgEntry.getValue());
+            }
+        }
+    }
+
+    private void unregisterInner(final Object bus) {
+        if (bus == null) return;
+        String className = bus.getClass().getName();
+        synchronized (mClassName_BusesMap) {
+            Set<Object> buses = mClassName_BusesMap.get(className);
+            if (buses == null || !buses.contains(bus)) {
+                System.out.println("The bus of <" + bus + "> was not registered before.");
+                return;
+            }
+            buses.remove(bus);
+        }
+    }
+
+    private void postInner(final String tag, final Object arg) {
+        postInner(tag, arg, false);
+    }
+
+    private void postInner(final String tag, final Object arg, final boolean sticky) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            System.out.println("The bus of tag <" + tag + "> is not exists.");
+            return;
+        }
+        for (BusInfo busInfo : busInfoList) {
+            if (busInfo.method == null) {
+                Method method = getMethodByBusInfo(busInfo);
+                if (method == null) {
+                    return;
+                }
+                busInfo.method = method;
+            }
+            invokeMethod(tag, arg, busInfo, sticky);
+        }
+    }
+
+    private Method getMethodByBusInfo(BusInfo busInfo) {
+        try {
+            if ("".equals(busInfo.paramType)) {
+                return Class.forName(busInfo.className).getDeclaredMethod(busInfo.funName);
+            } else {
+                return Class.forName(busInfo.className).getDeclaredMethod(busInfo.funName, getClassName(busInfo.paramType));
+            }
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    private Class getClassName(String paramType) throws ClassNotFoundException {
+        switch (paramType) {
+            case "boolean":
+                return boolean.class;
+            case "int":
+                return int.class;
+            case "long":
+                return long.class;
+            case "short":
+                return short.class;
+            case "byte":
+                return byte.class;
+            case "double":
+                return double.class;
+            case "float":
+                return float.class;
+            case "char":
+                return char.class;
+            default:
+                return Class.forName(paramType);
+        }
+    }
+
+    private void invokeMethod(final String tag, final Object arg, final BusInfo busInfo, final boolean sticky) {
+        Runnable runnable = new Runnable() {
+            @Override
+            public void run() {
+                realInvokeMethod(tag, arg, busInfo, sticky);
+            }
+        };
+        switch (busInfo.threadMode) {
+//            case "MAIN":
+//                Utils.runOnUiThread(runnable);
+//                return;
+//            case "IO":
+//                ThreadUtils.getIoPool().execute(runnable);
+//                return;
+//            case "CPU":
+//                ThreadUtils.getCpuPool().execute(runnable);
+//                return;
+//            case "CACHED":
+//                ThreadUtils.getCachedPool().execute(runnable);
+//                return;
+//            case "SINGLE":
+//                ThreadUtils.getSinglePool().execute(runnable);
+//                return;
+            default:
+                runnable.run();
+        }
+    }
+
+    private void realInvokeMethod(final String tag, Object arg, BusInfo busInfo, boolean sticky) {
+        Set<Object> buses = new HashSet<>();
+        for (String className : busInfo.classNames) {
+            Set<Object> subBuses = mClassName_BusesMap.get(className);
+            if (subBuses != null && !subBuses.isEmpty()) {
+                buses.addAll(subBuses);
+            }
+        }
+        if (buses.size() == 0) {
+            if (!sticky) {
+                System.out.println("The bus of tag <" + tag + "> was not registered before.");
+                return;
+            } else {
+                return;
+            }
+        }
+        try {
+            if (arg == NULL) {
+                for (Object bus : buses) {
+                    busInfo.method.invoke(bus);
+                }
+            } else {
+                for (Object bus : buses) {
+                    busInfo.method.invoke(bus, arg);
+                }
+            }
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void postStickyInner(final String tag, final Object arg) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            System.out.println("The bus of tag <" + tag + "> is not exists.");
+            return;
+        }
+        for (BusInfo busInfo : busInfoList) {
+            if (!busInfo.sticky) { // not sticky bus will post directly.
+                postInner(tag, arg);
+                return;
+            }
+            synchronized (mClassName_Tag_Arg4StickyMap) {
+                Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(busInfo.className);
+                if (tagArgMap == null) {
+                    tagArgMap = new HashMap<>();
+                    mClassName_Tag_Arg4StickyMap.put(busInfo.className, tagArgMap);
+                }
+                tagArgMap.put(tag, arg);
+            }
+            postInner(tag, arg, true);
+        }
+    }
+
+    private void removeStickyInner(final String tag) {
+        List<BusInfo> busInfoList = mTag_BusInfoListMap.get(tag);
+        if (busInfoList == null) {
+            System.out.println("The bus of tag <" + tag + "> is not exists.");
+            return;
+        }
+        for (BusInfo busInfo : busInfoList) {
+            if (!busInfo.sticky) {
+                System.out.println("The bus of tag <" + tag + "> is not sticky.");
+                return;
+            }
+            synchronized (mClassName_Tag_Arg4StickyMap) {
+                Map<String, Object> tagArgMap = mClassName_Tag_Arg4StickyMap.get(busInfo.className);
+                if (tagArgMap == null || !tagArgMap.containsKey(tag)) {
+                    System.out.println("The sticky bus of tag <" + tag + "> didn't post.");
+                    return;
+                }
+                tagArgMap.remove(tag);
+            }
+        }
+    }
+
+    private static final class BusInfo {
+
+        String       className;
+        String       funName;
+        String       paramType;
+        String       paramName;
+        boolean      sticky;
+        String       threadMode;
+        int          priority;
+        Method       method;
+        List<String> classNames;
+
+        BusInfo(String className, String funName, String paramType, String paramName,
+                boolean sticky, String threadMode, int priority) {
+            this.className = className;
+            this.funName = funName;
+            this.paramType = paramType;
+            this.paramName = paramName;
+            this.sticky = sticky;
+            this.threadMode = threadMode;
+            this.priority = priority;
+            this.classNames = new CopyOnWriteArrayList<>();
+        }
+
+        @Override
+        public String toString() {
+            return "BusInfo { desc: " + className + "#" + funName +
+                    ("".equals(paramType) ? "()" : ("(" + paramType + " " + paramName + ")")) +
+                    ", sticky: " + sticky +
+                    ", threadMode: " + threadMode +
+                    ", method: " + method +
+                    ", priority: " + priority +
+                    " }";
+        }
+    }
+
+    public enum ThreadMode {
+        MAIN, IO, CPU, CACHED, SINGLE, POSTING
+    }
+
+    @Target({ElementType.METHOD})
+    @Retention(RetentionPolicy.CLASS)
+    public @interface Bus {
+        String tag();
+
+        boolean sticky() default false;
+
+        ThreadMode threadMode() default ThreadMode.POSTING;
+
+        int priority() default 0;
+    }
+
+    private static class LazyHolder {
+        private static final BusUtils INSTANCE = new BusUtils();
+    }
+}
\ No newline at end of file
diff --git a/plugin/lib/base-transform/.gitignore b/plugin/lib/base-transform/.gitignore
new file mode 100755
index 0000000000..c351bdb35e
--- /dev/null
+++ b/plugin/lib/base-transform/.gitignore
@@ -0,0 +1,2 @@
+/build
+ApiUtils2333.class
\ No newline at end of file
diff --git a/plugin/lib/base-transform/CHANGELOG.md b/plugin/lib/base-transform/CHANGELOG.md
new file mode 100644
index 0000000000..ce60000fe7
--- /dev/null
+++ b/plugin/lib/base-transform/CHANGELOG.md
@@ -0,0 +1,4 @@
+# Change Log
+
+## v1.0(2020/04/28)
+发布初版本
\ No newline at end of file
diff --git a/plugin/lib/base-transform/README.md b/plugin/lib/base-transform/README.md
new file mode 100644
index 0000000000..a77feddcd8
--- /dev/null
+++ b/plugin/lib/base-transform/README.md
@@ -0,0 +1,50 @@
+# 基础 transform 库
+
+## 背景
+
+api 和 bus 插件存在大量重复代码，所以抽出这么一个基础 transform 库。
+
+
+## 使用
+
+```groovy
+implementation com.blankj:base-transform:1.0
+```
+
+写插件直接继承 BaseTransformPlugin 即可，比如 ApiPlugin：
+```groovy
+class ApiPlugin extends BaseTransformPlugin<ApiExtension> {
+
+    @Override
+    String getPluginName() {
+        // 获取插件名
+    }
+
+    @Override
+    void onScanStarted() {
+        // 扫描开始的处理
+    }
+
+    @Override
+    boolean isIgnoreScan(JarInput input) {
+        // 对 jar 包进行过滤扫描，
+        // 工程中的 module 就是以 : 开头的 jar 包
+        // 远端仓库也是 jar 包
+    }
+
+    @Override
+    void scanClassFile(File classFile, String className, File originScannedJarOrDir) {
+        // 扫描到类文件的处理
+    }
+
+    @Override
+    void onScanFinished() {
+        // 扫描结束的处理
+    }
+}
+```
+
+更具体可以参考 ApiPlugin 及 BusPlugin 的源码。
+
+
+## [Change Log](https://github.com/Blankj/AndroidUtilCode/blob/master/plugin/lib/base-transform/CHANGELOG.md)
\ No newline at end of file
diff --git a/plugin/lib/base-transform/build.gradle b/plugin/lib/base-transform/build.gradle
new file mode 100755
index 0000000000..8eac0ab6d3
--- /dev/null
+++ b/plugin/lib/base-transform/build.gradle
@@ -0,0 +1,29 @@
+apply {
+    plugin "groovy"
+    plugin "java-gradle-plugin"
+}
+
+dependencies {
+    compileOnly Config.plugins.plugin_gradle.path
+    implementation Config.libs.commons_io.path
+    implementation gradleApi()
+    implementation localGroovy()
+}
+
+sourceSets {
+    main {
+        groovy {
+            srcDirs += 'src/main/java'
+        }
+    }
+}
+
+ext {
+    groupId = Config.modules.plugin_lib_base_transform.groupId
+    artifactId = Config.modules.plugin_lib_base_transform.artifactId
+    version = Config.modules.plugin_lib_base_transform.version
+    website = "https://github.com/Blankj/AndroidUtilCode"
+}
+apply from: "${rootDir.path}/config/publish.gradle"
+//./gradlew clean :plugin_lib_base-transform:mavenLocal     // 上传到本地 mavenLocal
+//./gradlew clean :plugin_lib_base-transform:bintrayUpload  // 上传到 gradle 插件库中
diff --git a/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformCallback.groovy b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformCallback.groovy
new file mode 100644
index 0000000000..b1711c22d3
--- /dev/null
+++ b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformCallback.groovy
@@ -0,0 +1,15 @@
+package com.blankj.base_transform
+
+import com.android.build.api.transform.JarInput
+
+interface BaseTransformCallback<T> {
+    String getPluginName();
+
+    void onScanStarted();
+
+    boolean isIgnoreScan(JarInput input);
+
+    void scanClassFile(File classFile, String className, File originScannedJarOrDir);
+
+    void onScanFinished();
+}
\ No newline at end of file
diff --git a/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformConfig.groovy b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformConfig.groovy
new file mode 100755
index 0000000000..bed4381be2
--- /dev/null
+++ b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformConfig.groovy
@@ -0,0 +1,5 @@
+package com.blankj.base_transform
+
+class BaseTransformConfig {
+    public static final String FILE_SEP = System.getProperty("file.separator")
+}
\ No newline at end of file
diff --git a/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformPlugin.groovy b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformPlugin.groovy
new file mode 100755
index 0000000000..ba7869c066
--- /dev/null
+++ b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/BaseTransformPlugin.groovy
@@ -0,0 +1,162 @@
+package com.blankj.base_transform
+
+import com.android.build.api.transform.*
+import com.android.build.gradle.AppExtension
+import com.android.build.gradle.AppPlugin
+import com.android.build.gradle.internal.pipeline.TransformManager
+import com.blankj.base_transform.util.LogUtils
+import com.blankj.base_transform.util.ZipUtils
+import groovy.io.FileType
+import org.apache.commons.io.FileUtils
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+import java.lang.reflect.ParameterizedType
+
+abstract class BaseTransformPlugin<T> implements Plugin<Project>, BaseTransformCallback<T> {
+
+    Project mProject
+
+    T getExt() {
+        return mProject.getExtensions().getByName(getPluginName())
+    }
+
+    @Override
+    void apply(Project project) {
+        if (project.plugins.hasPlugin(AppPlugin)) {
+            mProject = project
+            LogUtils.init(project)
+            log('project(' + project.toString() + ') apply ' + getPluginName() + ' gradle plugin!')
+            project.extensions.create(getPluginName(), getGenericClass())
+            def android = project.extensions.getByType(AppExtension)
+            android.registerTransform(new BaseTransform())
+        }
+    }
+
+    Class<T> getGenericClass() {
+        return ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0]
+    }
+
+    class BaseTransform extends Transform {
+
+        @Override
+        String getName() {
+            return "${getPluginName()}Transform"
+        }
+
+        @Override
+        Set<QualifiedContent.ContentType> getInputTypes() {
+            return TransformManager.CONTENT_CLASS
+        }
+
+        @Override
+        Set<? super QualifiedContent.Scope> getScopes() {
+            return TransformManager.SCOPE_FULL_PROJECT
+        }
+
+        @Override
+        boolean isIncremental() {
+            return false
+        }
+
+        @Override
+        void transform(TransformInvocation transformInvocation)
+                throws TransformException, InterruptedException, IOException {
+            super.transform(transformInvocation)
+            log(getName() + " started")
+            long stTime = System.currentTimeMillis()
+
+            def inputs = transformInvocation.getInputs()
+            def referencedInputs = transformInvocation.getReferencedInputs()
+            def outputProvider = transformInvocation.getOutputProvider()
+            def isIncremental = transformInvocation.isIncremental()
+            outputProvider.deleteAll()
+
+            log("${getPluginName()}Extension: $ext")
+            onScanStarted()
+
+            inputs.each { TransformInput input ->
+                input.directoryInputs.each { DirectoryInput dirInput ->// 遍历文件夹
+                    File dir = dirInput.file
+                    File dest = outputProvider.getContentLocation(
+                            dirInput.name,
+                            dirInput.contentTypes,
+                            dirInput.scopes,
+                            Format.DIRECTORY
+                    )
+                    FileUtils.copyDirectory(dir, dest)
+
+                    log("scan dir: ${dirInput.file} -> $dest")
+                    scanDir(dest)
+                }
+                input.jarInputs.each { JarInput jarInput ->// 遍历 jar 文件
+                    File jar = jarInput.file
+
+                    def jarName = jarInput.name
+                    def dest = outputProvider.getContentLocation(
+                            jarName,
+                            jarInput.contentTypes,
+                            jarInput.scopes,
+                            Format.JAR
+                    )
+                    FileUtils.copyFile(jar, dest)
+
+                    if (isIgnoreScan(jarInput)) {
+                        log("jump jar: $jarName -> $dest")
+                        return
+                    }
+
+                    log("scan jar: $jarName -> $dest")
+                    scanJar(dest)
+                }
+            }
+
+            onScanFinished()
+            log(getName() + " finished: " + (System.currentTimeMillis() - stTime) + "ms")
+        }
+
+
+        void scanJar(File jar) {
+            File tmp = new File(jar.getParent(), "temp_" + jar.getName())
+            List<File> unzipFile = ZipUtils.unzipFile(jar, tmp)
+            if (unzipFile != null && unzipFile.size() > 0) {
+                scanDir(tmp, jar)
+                FileUtils.forceDelete(tmp)
+            }
+        }
+
+        void scanDir(File root) {
+            scanDir(root, root)
+        }
+
+        void scanDir(File dir, File originScannedJarOrDir) {
+            if (!dir.isDirectory()) return
+            String rootPath = dir.getAbsolutePath()
+            if (!rootPath.endsWith(BaseTransformConfig.FILE_SEP)) {
+                rootPath += BaseTransformConfig.FILE_SEP
+            }
+
+            dir.eachFileRecurse(FileType.FILES) { File file ->
+                def fileName = file.name
+                if (!fileName.endsWith('.class')
+                        || fileName.startsWith('R$')
+                        || fileName == 'R.class'
+                        || fileName == 'BuildConfig.class') {
+                    return
+                }
+
+                def filePath = file.absolutePath
+                def packagePath = filePath.replace(rootPath, '')
+                def className = packagePath.replace(BaseTransformConfig.FILE_SEP, ".")
+                // delete .class
+                className = className.substring(0, className.length() - 6)
+
+                scanClassFile(file, className, originScannedJarOrDir)
+            }
+        }
+    }
+
+    void log(Object obj) {
+        LogUtils.l(getPluginName(), obj)
+    }
+}
\ No newline at end of file
diff --git a/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/JsonUtils.groovy b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/JsonUtils.groovy
new file mode 100755
index 0000000000..c69277b90b
--- /dev/null
+++ b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/JsonUtils.groovy
@@ -0,0 +1,21 @@
+package com.blankj.base_transform.util
+
+import com.google.gson.Gson
+import com.google.gson.GsonBuilder
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/10/08
+ *     desc  :
+ * </pre>
+ */
+final class JsonUtils {
+
+    static final Gson GSON = new GsonBuilder().setPrettyPrinting().create()
+
+    static String getFormatJson(Object object) {
+        return GSON.toJson(object)
+    }
+}
diff --git a/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/LogUtils.groovy b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/LogUtils.groovy
new file mode 100755
index 0000000000..200bfea932
--- /dev/null
+++ b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/LogUtils.groovy
@@ -0,0 +1,60 @@
+package com.blankj.base_transform.util
+
+import org.gradle.api.Project
+import org.gradle.api.logging.Logger
+
+final class LogUtils {
+
+    private static Logger sLogger
+
+    static void init(Project project) {
+        sLogger = project.getLogger()
+    }
+
+    static void l(Object content) {
+        l("", content)
+    }
+
+    static void d(Object content) {
+        d("", content)
+    }
+
+    static void i(Object content) {
+        i("", content)
+    }
+
+    static void w(Object content) {
+        w("", content)
+    }
+
+    static void e(Object content) {
+        e("", content)
+    }
+
+    static void l(String tag, Object content) {
+        sLogger.lifecycle(getTag(tag) + content)
+    }
+
+    static void d(String tag, Object content) {
+        sLogger.debug(getTag(tag) + content)
+    }
+
+    static void i(String tag, Object content) {
+        sLogger.info(getTag(tag) + content)
+    }
+
+    static void w(String tag, Object content) {
+        sLogger.warn(getTag(tag) + content)
+    }
+
+    static void e(String tag, Object content) {
+        sLogger.error(getTag(tag) + content)
+    }
+
+    private static String getTag(String tag) {
+        if (tag == null || tag.isEmpty()) {
+            return "LogUtils >>> "
+        }
+        return tag + " >>> "
+    }
+}
\ No newline at end of file
diff --git a/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/ZipUtils.java b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/ZipUtils.java
new file mode 100755
index 0000000000..74aba1a98a
--- /dev/null
+++ b/plugin/lib/base-transform/src/main/java/com/blankj/base_transform/util/ZipUtils.java
@@ -0,0 +1,453 @@
+package com.blankj.base_transform.util;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipOutputStream;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/08/27
+ *     desc  : utils about zip or jar
+ * </pre>
+ */
+public final class ZipUtils {
+
+    private static final int BUFFER_LEN = 8192;
+
+    private ZipUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFiles    The source of files.
+     * @param zipFilePath The path of ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<String> srcFiles,
+                                   final String zipFilePath)
+            throws IOException {
+        return zipFiles(srcFiles, zipFilePath, null);
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFilePaths The paths of source files.
+     * @param zipFilePath  The path of ZIP file.
+     * @param comment      The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<String> srcFilePaths,
+                                   final String zipFilePath,
+                                   final String comment)
+            throws IOException {
+        if (srcFilePaths == null || zipFilePath == null) return false;
+        ZipOutputStream zos = null;
+        try {
+            zos = new ZipOutputStream(new FileOutputStream(zipFilePath));
+            for (String srcFile : srcFilePaths) {
+                if (!zipFile(getFileByPath(srcFile), "", zos, comment)) return false;
+            }
+            return true;
+        } finally {
+            if (zos != null) {
+                zos.finish();
+                zos.close();
+            }
+        }
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFiles The source of files.
+     * @param zipFile  The ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<File> srcFiles, final File zipFile)
+            throws IOException {
+        return zipFiles(srcFiles, zipFile, null);
+    }
+
+    /**
+     * Zip the files.
+     *
+     * @param srcFiles The source of files.
+     * @param zipFile  The ZIP file.
+     * @param comment  The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFiles(final Collection<File> srcFiles,
+                                   final File zipFile,
+                                   final String comment)
+            throws IOException {
+        if (srcFiles == null || zipFile == null) return false;
+        ZipOutputStream zos = null;
+        try {
+            zos = new ZipOutputStream(new FileOutputStream(zipFile));
+            for (File srcFile : srcFiles) {
+                if (!zipFile(srcFile, "", zos, comment)) return false;
+            }
+            return true;
+        } finally {
+            if (zos != null) {
+                zos.finish();
+                zos.close();
+            }
+        }
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFilePath The path of source file.
+     * @param zipFilePath The path of ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final String srcFilePath,
+                                  final String zipFilePath)
+            throws IOException {
+        return zipFile(getFileByPath(srcFilePath), getFileByPath(zipFilePath), null);
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFilePath The path of source file.
+     * @param zipFilePath The path of ZIP file.
+     * @param comment     The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final String srcFilePath,
+                                  final String zipFilePath,
+                                  final String comment)
+            throws IOException {
+        return zipFile(getFileByPath(srcFilePath), getFileByPath(zipFilePath), comment);
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFile The source of file.
+     * @param zipFile The ZIP file.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final File srcFile,
+                                  final File zipFile)
+            throws IOException {
+        return zipFile(srcFile, zipFile, null);
+    }
+
+    /**
+     * Zip the file.
+     *
+     * @param srcFile The source of file.
+     * @param zipFile The ZIP file.
+     * @param comment The comment.
+     * @return {@code true}: success<br>{@code false}: fail
+     * @throws IOException if an I/O error has occurred
+     */
+    public static boolean zipFile(final File srcFile,
+                                  final File zipFile,
+                                  final String comment)
+            throws IOException {
+        if (srcFile == null || zipFile == null) return false;
+        ZipOutputStream zos = null;
+        try {
+            zos = new ZipOutputStream(new FileOutputStream(zipFile));
+            return zipFile(srcFile, "", zos, comment);
+        } finally {
+            if (zos != null) {
+                zos.close();
+            }
+        }
+    }
+
+    private static boolean zipFile(final File srcFile,
+                                   String rootPath,
+                                   final ZipOutputStream zos,
+                                   final String comment)
+            throws IOException {
+        rootPath = rootPath + (isSpace(rootPath) ? "" : File.separator) + srcFile.getName();
+        if (srcFile.isDirectory()) {
+            File[] fileList = srcFile.listFiles();
+            if (fileList == null || fileList.length <= 0) {
+                ZipEntry entry = new ZipEntry(rootPath + '/');
+                entry.setComment(comment);
+                zos.putNextEntry(entry);
+                zos.closeEntry();
+            } else {
+                for (File file : fileList) {
+                    if (!zipFile(file, rootPath, zos, comment)) return false;
+                }
+            }
+        } else {
+            InputStream is = null;
+            try {
+                is = new BufferedInputStream(new FileInputStream(srcFile));
+                ZipEntry entry = new ZipEntry(rootPath);
+                entry.setComment(comment);
+                zos.putNextEntry(entry);
+                byte buffer[] = new byte[BUFFER_LEN];
+                int len;
+                while ((len = is.read(buffer, 0, BUFFER_LEN)) != -1) {
+                    zos.write(buffer, 0, len);
+                }
+                zos.closeEntry();
+            } finally {
+                if (is != null) {
+                    is.close();
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Unzip the file.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @param destDirPath The path of destination directory.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFile(final String zipFilePath,
+                                       final String destDirPath)
+            throws IOException {
+        return unzipFileByKeyword(zipFilePath, destDirPath, null);
+    }
+
+    /**
+     * Unzip the file.
+     *
+     * @param zipFile The ZIP file.
+     * @param destDir The destination directory.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFile(final File zipFile,
+                                       final File destDir)
+            throws IOException {
+        return unzipFileByKeyword(zipFile, destDir, null);
+    }
+
+    /**
+     * Unzip the file by keyword.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @param destDirPath The path of destination directory.
+     * @param keyword     The keyboard.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFileByKeyword(final String zipFilePath,
+                                                final String destDirPath,
+                                                final String keyword)
+            throws IOException {
+        return unzipFileByKeyword(getFileByPath(zipFilePath), getFileByPath(destDirPath), keyword);
+    }
+
+    /**
+     * Unzip the file by keyword.
+     *
+     * @param zipFile The ZIP file.
+     * @param destDir The destination directory.
+     * @param keyword The keyboard.
+     * @return the unzipped files
+     * @throws IOException if unzip unsuccessfully
+     */
+    public static List<File> unzipFileByKeyword(final File zipFile,
+                                                final File destDir,
+                                                final String keyword)
+            throws IOException {
+        if (zipFile == null || destDir == null) return null;
+        List<File> files = new ArrayList<>();
+        ZipFile zip = new ZipFile(zipFile);
+        Enumeration<?> entries = zip.entries();
+        try {
+            if (isSpace(keyword)) {
+                while (entries.hasMoreElements()) {
+                    ZipEntry entry = ((ZipEntry) entries.nextElement());
+                    String entryName = entry.getName();
+                    if (entryName.contains("../")) {
+                        System.err.println("entryName: " + entryName + " is dangerous!");
+                        continue;
+                    }
+                    if (!unzipChildFile(destDir, files, zip, entry, entryName)) return files;
+                }
+            } else {
+                while (entries.hasMoreElements()) {
+                    ZipEntry entry = ((ZipEntry) entries.nextElement());
+                    String entryName = entry.getName();
+                    if (entryName.contains("../")) {
+                        System.out.println("entryName: " + entryName + " is dangerous!");
+                        continue;
+                    }
+                    if (entryName.contains(keyword)) {
+                        if (!unzipChildFile(destDir, files, zip, entry, entryName)) return files;
+                    }
+                }
+            }
+        } finally {
+            zip.close();
+        }
+        return files;
+    }
+
+    private static boolean unzipChildFile(final File destDir,
+                                          final List<File> files,
+                                          final ZipFile zip,
+                                          final ZipEntry entry,
+                                          final String name) throws IOException {
+        File file = new File(destDir, name);
+        files.add(file);
+        if (entry.isDirectory()) {
+            return createOrExistsDir(file);
+        } else {
+            if (!createOrExistsFile(file)) return false;
+            InputStream in = null;
+            OutputStream out = null;
+            try {
+                in = new BufferedInputStream(zip.getInputStream(entry));
+                out = new BufferedOutputStream(new FileOutputStream(file));
+                byte buffer[] = new byte[BUFFER_LEN];
+                int len;
+                while ((len = in.read(buffer)) != -1) {
+                    out.write(buffer, 0, len);
+                }
+            } finally {
+                if (in != null) {
+                    in.close();
+                }
+                if (out != null) {
+                    out.close();
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Return the files' path in ZIP file.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @return the files' path in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getFilesPath(final String zipFilePath)
+            throws IOException {
+        return getFilesPath(getFileByPath(zipFilePath));
+    }
+
+    /**
+     * Return the files' path in ZIP file.
+     *
+     * @param zipFile The ZIP file.
+     * @return the files' path in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getFilesPath(final File zipFile)
+            throws IOException {
+        if (zipFile == null) return null;
+        List<String> paths = new ArrayList<>();
+        ZipFile zip = new ZipFile(zipFile);
+        Enumeration<?> entries = zip.entries();
+        while (entries.hasMoreElements()) {
+            String entryName = ((ZipEntry) entries.nextElement()).getName();
+            if (entryName.contains("../")) {
+                System.out.println("entryName: " + entryName + " is dangerous!");
+                paths.add(entryName);
+            } else {
+                paths.add(entryName);
+            }
+        }
+        zip.close();
+        return paths;
+    }
+
+    /**
+     * Return the files' comment in ZIP file.
+     *
+     * @param zipFilePath The path of ZIP file.
+     * @return the files' comment in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getComments(final String zipFilePath)
+            throws IOException {
+        return getComments(getFileByPath(zipFilePath));
+    }
+
+    /**
+     * Return the files' comment in ZIP file.
+     *
+     * @param zipFile The ZIP file.
+     * @return the files' comment in ZIP file
+     * @throws IOException if an I/O error has occurred
+     */
+    public static List<String> getComments(final File zipFile)
+            throws IOException {
+        if (zipFile == null) return null;
+        List<String> comments = new ArrayList<>();
+        ZipFile zip = new ZipFile(zipFile);
+        Enumeration<?> entries = zip.entries();
+        while (entries.hasMoreElements()) {
+            ZipEntry entry = ((ZipEntry) entries.nextElement());
+            comments.add(entry.getComment());
+        }
+        zip.close();
+        return comments;
+    }
+
+    private static boolean createOrExistsDir(final File file) {
+        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
+    }
+
+    private static boolean createOrExistsFile(final File file) {
+        if (file == null) return false;
+        if (file.exists()) return file.isFile();
+        if (!createOrExistsDir(file.getParentFile())) return false;
+        try {
+            return file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    private static File getFileByPath(final String filePath) {
+        return isSpace(filePath) ? null : new File(filePath);
+    }
+
+    private static boolean isSpace(final String s) {
+        if (s == null) return true;
+        for (int i = 0, len = s.length(); i < len; ++i) {
+            if (!Character.isWhitespace(s.charAt(i))) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
diff --git a/script/gitHelp.sh b/script/gitHelp.sh
new file mode 100755
index 0000000000..af98ce2ac6
--- /dev/null
+++ b/script/gitHelp.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+while true; do
+  echo "                 ############## input command code #################"
+  echo "                 #          [1] Git Push                           #"
+  echo "                 #          [2] Git Push And Merge to Master       #"
+  echo "                 #          [other] exit                           #"
+  echo "                 ###################################################"
+
+  read which
+
+  case $which in
+  1)
+    curBranch=$(git symbolic-ref --short -q HEAD)
+    gitPush $curBranch
+    ;;
+  2)
+    curBranch=$(git symbolic-ref --short -q HEAD)
+    gitPush $curBranch
+    echo "git checkout master"
+    echo $(git checkout master)
+    echo "git merge $branchName"
+    echo $(git merge $branchName)
+    echo "git push origin master"
+    echo $(git push origin master)
+    echo "git checkout $branchName"
+    echo $(git checkout $branchName)
+    ;;
+  *)
+    echo "88"
+    break
+    ;;
+  esac
+done
+
+function gitPush() {
+  curBranch=$1
+  echo "curBranch = $curBranch"
+  echo "git add -A"
+  echo $(git add -A)
+  date=$(date "+%m/%d")
+  echo "git commit -m \"see $date log\""
+  echo $(git commit -m "see $date log")
+  echo "git push origin $curBranch"
+  echo $(git push origin $curBranch)
+}
diff --git a/script/runDevDebug.sh b/script/runDevDebug.sh
new file mode 100755
index 0000000000..e42394e0c8
--- /dev/null
+++ b/script/runDevDebug.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+# build dev debug apk
+./gradlew --daemon installDevDebug
+
+# start main activity
+adb shell am start -n "com.blankj.androidutilcode.dev/com.blankj.main.pkg.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
\ No newline at end of file
diff --git a/script/runProductionRelease.sh b/script/runProductionRelease.sh
new file mode 100755
index 0000000000..a3d44d5ede
--- /dev/null
+++ b/script/runProductionRelease.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+# build dev debug apk
+./gradlew --daemon installProductionRelease
+
+# start main activity
+adb shell am start -n "com.blankj.androidutilcode/com.blankj.main.pkg.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index 15c12ce9bb..3fb2a0a2be 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,43 +1,39 @@
-includeModule ':app',
-        ':buildSrc',
-        ':bus-gradle-plugin',
-        ':lib',
-        ':launcher',
-        ':subutil',
-        ':utilcode'
-//,'libbase'
+//includeBuild 'configPlugin'
 
-def includeModule(String... names) {
-    names.each {
-        def fileName
-        if (it.startsWith(":")) {
-            fileName = it.substring(1, it.length())
-        } else {
-            fileName = it;
-        }
-        File f = file(fileName)
-        if (!f.exists() || !f.isDirectory()) return
-        if (isModule(f)) {
-            include it
-        } else {
-            f.eachDir { dir ->
-                if (!isModule(dir)) return
-                include "${fileName}-${dir.name}"
-                project(":${fileName}-${dir.name}").projectDir = dir
-            }
-        }
-    }
-}
+//buildscript {
+////    ConfigUtils.init(gradle)
+//    repositories {
+//        mavenLocal()
+//        mavenCentral()
+//    }
+//
+//    dependencies {
+//        classpath 'com.blankj:buildSrc-plugin:1.0'
+//    }
+//}
 
-static boolean isModule(File dir) {
-    File[] files = dir.listFiles(new FilenameFilter() {
-        @Override
-        boolean accept(File file, String name) {
-            return name == 'build.gradle' || name == 'src'
-        }
-    })
-    return files.size() == 2
-}
+//apply plugin: "com.blankj.buildSrc"
 
 
+//dependencyResolutionManagement {
+//    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+//    repositories {
+//        google()
+//        mavenCentral()
+//        jcenter() // Warning: this repository is going to shut down soon
+//        maven {url 'https://jetpack.io'} // Warning: this repository is going to shut down soon
+//    }
+//
+////    configurations.all {
+////        resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
+////
+////        resolutionStrategy.eachDependency {
+////            if (it.requested.group == 'com.android.support' && !it.requested.name.contains(
+////                    'multidex')) {
+////                it.useVersion Config.supportVersion
+////            }
+////        }
+////    }
+//}
 
+apply from: 'module_config.gradle'
diff --git a/sign/keystore.properties b/sign/keystore.properties
index 751bed18ad..859834467a 100644
--- a/sign/keystore.properties
+++ b/sign/keystore.properties
@@ -1,4 +1,4 @@
-keystore=sign/keystore.jks
+keystore=keystore.jks
 storePassword=utilcode
 keyAlias=utilcode
 keyPassword=utilcode
\ No newline at end of file
diff --git a/subutil/README-CN.md b/subutil/README-CN.md
deleted file mode 100644
index 71ce249de6..0000000000
--- a/subutil/README-CN.md
+++ /dev/null
@@ -1,110 +0,0 @@
-## How to use
-
-从下面选择拷贝你需要用到的类到你项目中即可。
-
-
-## APIs
-
-* ### 亮度相关 -> [BrightnessUtils.java][brightness.java] -> [Demo][brightness.demo]
-```
-isAutoBrightnessEnabled : 判断是否开启自动调节亮度
-setAutoBrightnessEnabled: 设置是否开启自动调节亮度
-getBrightness           : 获取屏幕亮度
-setBrightness           : 设置屏幕亮度
-setWindowBrightness     : 设置窗口亮度
-getWindowBrightness     : 获取窗口亮度
-```
-
-* ### 剪贴板相关 -> [ClipboardUtils.java][clipboard.java] -> [Test][clipboard.test]
-```
-copyText  : 复制文本到剪贴板
-getText   : 获取剪贴板的文本
-copyUri   : 复制 uri 到剪贴板
-getUri    : 获取剪贴板的 uri
-copyIntent: 复制意图到剪贴板
-getIntent : 获取剪贴板的意图
-```
-
-* ### 克隆相关 -> [CloneUtils.java][clone.java] -> [Test][clone.test]
-```
-deepClone: 深度克隆
-```
-
-* ### 坐标转换相关 -> [CoordinateUtils.java][coordinate.java] -> [Test][coordinate.test]
-```
-bd09ToGcj02 : BD09 坐标转 GCJ02 坐标
-gcj02ToBd09 : GCJ02 坐标转 BD09 坐标
-gcj02ToWGS84: GCJ02 坐标转 WGS84 坐标
-wgs84ToGcj02: WGS84 坐标转 GCJ02 坐标
-bd09ToWGS84 : BD09 坐标转 WGS84 坐标
-wgs84ToBd09 : WGS84 坐标转 BD09 坐标
-```
-
-* ### 闪光灯相关 -> [FlashlightUtils.java][flashlight.java] -> [Demo][flashlight.demo]
-```
-getInstance              : 获取闪光灯实例
-Instance.register        : 注册
-Instance.unregister      : 注销
-Instance.setFlashlightOn : 打开闪光灯
-Instance.setFlashlightOff: 关闭闪光灯
-Instance.isFlashlightOn  : 判断闪光灯是否打开
-isFlashlightEnable       : 判断设备是否支持闪光灯
-```
-
-* ### Gson 相关 -> [GsonUtils.java][gson.java] -> [Test][gson.test]
-```
-getGson : 获取 Gson 对象
-toJson  : 对象转 Json 串
-fromJson: Json 串转对象
-```
-
-* ### 定位相关 -> [LocationUtils.java][location.java] -> [Demo][location.demo]
-```
-isGpsEnabled     : 判断 Gps 是否可用
-isLocationEnabled: 判断定位是否可用
-openGpsSettings  : 打开 Gps 设置界面
-register         : 注册
-unregister       : 注销
-getAddress       : 根据经纬度获取地理位置
-getCountryName   : 根据经纬度获取所在国家
-getLocality      : 根据经纬度获取所在地
-getStreet        : 根据经纬度获取所在街道
-isBetterLocation : 是否更好的位置
-isSameProvider   : 是否相同的提供者
-```
-
-* ### 拼音相关 -> [PinyinUtils.java][pinyin.java] -> [Demo][pinyin.demo]
-```
-ccs2Pinyin           : 汉字转拼音
-ccs2Pinyin           : 汉字转拼音
-getPinyinFirstLetter : 获取第一个汉字首字母
-getPinyinFirstLetters: 获取所有汉字的首字母
-getSurnamePinyin     : 根据名字获取姓氏的拼音
-getSurnameFirstLetter: 根据名字获取姓氏的首字母
-```
-
-
-
-[brightness.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/BrightnessUtils.java
-[brightness.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/brightness/BrightnessActivity.java
-
-[clipboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/ClipboardUtils.java
-[clipboard.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/ClipboardUtilsTest.java
-
-[clone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/CloneUtils.java
-[clone.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/CloneUtilsTest.java
-
-[coordinate.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
-[coordinate.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
-
-[flashlight.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/FlashlightUtils.java
-[flashlight.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/flashlight/FlashlightActivity.java
-
-[gson.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/GsonUtils.java
-[gson.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/GsonUtilsTest.java
-
-[location.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
-[location.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationActivity.java
-
-[pinyin.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
-[pinyin.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/pinyin/PinyinActivity.java
diff --git a/subutil/README.md b/subutil/README.md
deleted file mode 100644
index 448a830b8c..0000000000
--- a/subutil/README.md
+++ /dev/null
@@ -1,110 +0,0 @@
-## How to use
-
-You should copy the following classes which you want to use in your project.
-
-
-## APIs
-
-* ### About Brightness -> [BrightnessUtils.java][brightness.java] -> [Demo][brightness.demo]
-```
-isAutoBrightnessEnabled
-setAutoBrightnessEnabled
-getBrightness
-setBrightness
-setWindowBrightness
-getWindowBrightness
-```
-
-* ### About Clipboard -> [ClipboardUtils.java][clipboard.java] -> [Test][clipboard.test]
-```
-copyText
-getText
-copyUri
-getUri
-copyIntent
-getIntent
-```
-
-* ### About Clone -> [CloneUtils.java][clone.java] -> [Test][clone.test]
-```
-deepClone
-```
-
-* ### About Coordinate -> [CoordinateUtils.java][coordinate.java] -> [Test][coordinate.test]
-```
-bd09ToGcj02
-gcj02ToBd09
-gcj02ToWGS84
-wgs84ToGcj02
-bd09ToWGS84
-wgs84ToBd09
-```
-
-* ### About Flashlight -> [FlashlightUtils.java][flashlight.java] -> [Demo][flashlight.demo]
-```
-getInstance
-Instance.register
-Instance.unregister
-Instance.setFlashlightOn
-Instance.setFlashlightOff
-Instance.isFlashlightOn
-isFlashlightEnable
-```
-
-* ### About Gson -> [GsonUtils.java][gson.java] -> [Test][gson.test]
-```
-getGson
-toJson
-fromJson
-```
-
-* ### About Location -> [LocationUtils.java][location.java] -> [Demo][location.demo]
-```
-isGpsEnabled
-isLocationEnabled
-openGpsSettings
-register
-unregister
-getAddress
-getCountryName
-getLocality
-getStreet
-isBetterLocation
-isSameProvider
-```
-
-* ### About Pinyin -> [PinyinUtils.java][pinyin.java] -> [Demo][pinyin.demo]
-```
-ccs2Pinyin
-ccs2Pinyin
-getPinyinFirstLetter
-getPinyinFirstLetters
-getSurnamePinyin
-getSurnameFirstLetter
-```
-
-
-
-[brightness.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/BrightnessUtils.java
-[brightness.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/brightness/BrightnessActivity.java
-
-[clipboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/ClipboardUtils.java
-[clipboard.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/ClipboardUtilsTest.java
-
-[clone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/CloneUtils.java
-[clone.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/CloneUtilsTest.java
-
-[coordinate.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/CoordinateUtils.java
-[coordinate.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/CoordinateUtilsTest.java
-
-[flashlight.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/FlashlightUtils.java
-[flashlight.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/flashlight/FlashlightActivity.java
-
-[gson.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/GsonUtils.java
-[gson.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/test/java/com/blankj/subutil/util/GsonUtilsTest.java
-
-[location.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/LocationUtils.java
-[location.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/location/LocationActivity.java
-
-[pinyin.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java
-[pinyin.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/sub/pinyin/PinyinActivity.java
diff --git a/subutil/lib/build.gradle b/subutil/lib/build.gradle
deleted file mode 100644
index 1bb16170b2..0000000000
--- a/subutil/lib/build.gradle
+++ /dev/null
@@ -1,25 +0,0 @@
-plugins {
-    id "com.android.library"
-    id "readme-sub"
-}
-
-// in config.gradle
-configAndroidDomain project
-
-readme {
-    readmeFile file('README.md')
-    readmeCnFile file('README-CN.md')
-}
-
-dependencies {
-    compileOnly dep.support.appcompat_v7
-    compileOnly dep.support.design
-    api dep.gson
-    api(dep.glide) {
-        exclude group: "com.android.support"
-    }
-    api dep.retrofit
-
-    testImplementation dep.junit
-    testImplementation dep.robolectric
-}
\ No newline at end of file
diff --git a/subutil/lib/src/main/AndroidManifest.xml b/subutil/lib/src/main/AndroidManifest.xml
deleted file mode 100644
index a698fc9a44..0000000000
--- a/subutil/lib/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.subutil">
-
-    <application>
-        <provider
-            android:name=".util.Utils$ContentProvider4SubUtil"
-            android:authorities="${applicationId}.subutil.content.provider"
-            android:exported="false"
-            android:multiprocess="true" />
-    </application>
-</manifest>
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/BrightnessUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/BrightnessUtils.java
deleted file mode 100644
index 919f52af74..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/BrightnessUtils.java
+++ /dev/null
@@ -1,134 +0,0 @@
-package com.blankj.subutil.util;
-
-import android.content.ContentResolver;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Build;
-import android.provider.Settings;
-import android.support.annotation.IntRange;
-import android.support.annotation.NonNull;
-import android.view.Window;
-import android.view.WindowManager;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/02/08
- *     desc  : 亮度相关工具类
- * </pre>
- */
-public final class BrightnessUtils {
-
-    private BrightnessUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * 判断是否开启自动调节亮度
-     *
-     * @return {@code true}: 是<br>{@code false}: 否
-     */
-    public static boolean isAutoBrightnessEnabled() {
-        try {
-            int mode = Settings.System.getInt(
-                    Utils.getApp().getContentResolver(),
-                    Settings.System.SCREEN_BRIGHTNESS_MODE
-            );
-            return mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
-        } catch (Settings.SettingNotFoundException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * 设置是否开启自动调节亮度
-     * <p>需添加权限 {@code <uses-permission android:name="android.permission.WRITE_SETTINGS" />}</p>
-     * 并得到授权
-     *
-     * @param enabled {@code true}: 打开<br>{@code false}: 关闭
-     * @return {@code true}: 成功<br>{@code false}: 失败
-     */
-    public static boolean setAutoBrightnessEnabled(final boolean enabled) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
-                && !Settings.System.canWrite(Utils.getApp())) {
-            Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS);
-            intent.setData(Uri.parse("package:" + Utils.getApp().getPackageName()));
-            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            Utils.getApp().startActivity(intent);
-            return false;
-        }
-        return Settings.System.putInt(
-                Utils.getApp().getContentResolver(),
-                Settings.System.SCREEN_BRIGHTNESS_MODE,
-                enabled ? Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC
-                        : Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL
-        );
-    }
-
-    /**
-     * 获取屏幕亮度
-     *
-     * @return 屏幕亮度 0-255
-     */
-    public static int getBrightness() {
-        try {
-            return Settings.System.getInt(
-                    Utils.getApp().getContentResolver(),
-                    Settings.System.SCREEN_BRIGHTNESS
-            );
-        } catch (Settings.SettingNotFoundException e) {
-            e.printStackTrace();
-            return 0;
-        }
-    }
-
-    /**
-     * 设置屏幕亮度
-     * <p>需添加权限 {@code <uses-permission android:name="android.permission.WRITE_SETTINGS" />}</p>
-     * 并得到授权
-     *
-     * @param brightness 亮度值
-     */
-    public static boolean setBrightness(@IntRange(from = 0, to = 255) final int brightness) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
-                && !Settings.System.canWrite(Utils.getApp())) {
-            Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS);
-            intent.setData(Uri.parse("package:" + Utils.getApp().getPackageName()));
-            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            Utils.getApp().startActivity(intent);
-            return false;
-        }
-        ContentResolver resolver = Utils.getApp().getContentResolver();
-        boolean b = Settings.System.putInt(resolver, Settings.System.SCREEN_BRIGHTNESS, brightness);
-        resolver.notifyChange(Settings.System.getUriFor("screen_brightness"), null);
-        return b;
-    }
-
-    /**
-     * 设置窗口亮度
-     *
-     * @param window     窗口
-     * @param brightness 亮度值
-     */
-    public static void setWindowBrightness(@NonNull final Window window,
-                                           @IntRange(from = 0, to = 255) final int brightness) {
-        WindowManager.LayoutParams lp = window.getAttributes();
-        lp.screenBrightness = brightness / 255f;
-        window.setAttributes(lp);
-    }
-
-    /**
-     * 获取窗口亮度
-     *
-     * @param window 窗口
-     * @return 屏幕亮度 0-255
-     */
-    public static int getWindowBrightness(final Window window) {
-        WindowManager.LayoutParams lp = window.getAttributes();
-        float brightness = lp.screenBrightness;
-        if (brightness < 0) return getBrightness();
-        return (int) (brightness * 255);
-    }
-}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/ClipboardUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/ClipboardUtils.java
deleted file mode 100644
index 6f94e8c466..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/ClipboardUtils.java
+++ /dev/null
@@ -1,100 +0,0 @@
-package com.blankj.subutil.util;
-
-import android.content.ClipData;
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/25
- *     desc  : 剪贴板相关工具类
- * </pre>
- */
-public final class ClipboardUtils {
-
-    private ClipboardUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * 复制文本到剪贴板
-     *
-     * @param text 文本
-     */
-    public static void copyText(final CharSequence text) {
-        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
-        //noinspection ConstantConditions
-        cm.setPrimaryClip(ClipData.newPlainText("text", text));
-    }
-
-    /**
-     * 获取剪贴板的文本
-     *
-     * @return 剪贴板的文本
-     */
-    public static CharSequence getText() {
-        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
-        //noinspection ConstantConditions
-        ClipData clip = cm.getPrimaryClip();
-        if (clip != null && clip.getItemCount() > 0) {
-            return clip.getItemAt(0).coerceToText(Utils.getApp());
-        }
-        return null;
-    }
-
-    /**
-     * 复制uri到剪贴板
-     *
-     * @param uri uri
-     */
-    public static void copyUri(final Uri uri) {
-        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
-        //noinspection ConstantConditions
-        cm.setPrimaryClip(ClipData.newUri(Utils.getApp().getContentResolver(), "uri", uri));
-    }
-
-    /**
-     * 获取剪贴板的uri
-     *
-     * @return 剪贴板的uri
-     */
-    public static Uri getUri() {
-        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
-        //noinspection ConstantConditions
-        ClipData clip = cm.getPrimaryClip();
-        if (clip != null && clip.getItemCount() > 0) {
-            return clip.getItemAt(0).getUri();
-        }
-        return null;
-    }
-
-    /**
-     * 复制意图到剪贴板
-     *
-     * @param intent 意图
-     */
-    public static void copyIntent(final Intent intent) {
-        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
-        //noinspection ConstantConditions
-        cm.setPrimaryClip(ClipData.newIntent("intent", intent));
-    }
-
-    /**
-     * 获取剪贴板的意图
-     *
-     * @return 剪贴板的意图
-     */
-    public static Intent getIntent() {
-        ClipboardManager cm = (ClipboardManager) Utils.getApp().getSystemService(Context.CLIPBOARD_SERVICE);
-        //noinspection ConstantConditions
-        ClipData clip = cm.getPrimaryClip();
-        if (clip != null && clip.getItemCount() > 0) {
-            return clip.getItemAt(0).getIntent();
-        }
-        return null;
-    }
-}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/CloneUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/CloneUtils.java
deleted file mode 100644
index 4ee0b37dc4..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/CloneUtils.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.blankj.subutil.util;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.io.Serializable;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/01/30
- *     desc  : utils about clone
- * </pre>
- */
-public final class CloneUtils {
-
-    /**
-     * Deep clone.
-     *
-     * @param data The data.
-     * @param <T>  The value type.
-     * @return The object of cloned
-     */
-    public static <T> T deepClone(final Serializable data) {
-        if (data == null) return null;
-        //noinspection unchecked
-        return (T) bytes2Object(serializable2Bytes((Serializable) data));
-    }
-
-    private static byte[] serializable2Bytes(final Serializable serializable) {
-        if (serializable == null) return null;
-        ByteArrayOutputStream baos;
-        ObjectOutputStream oos = null;
-        try {
-            oos = new ObjectOutputStream(baos = new ByteArrayOutputStream());
-            oos.writeObject(serializable);
-            return baos.toByteArray();
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (oos != null) {
-                    oos.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static Object bytes2Object(final byte[] bytes) {
-        if (bytes == null) return null;
-        ObjectInputStream ois = null;
-        try {
-            ois = new ObjectInputStream(new ByteArrayInputStream(bytes));
-            return ois.readObject();
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (ois != null) {
-                    ois.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/FlashlightUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/FlashlightUtils.java
deleted file mode 100644
index 40dab91c70..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/FlashlightUtils.java
+++ /dev/null
@@ -1,132 +0,0 @@
-package com.blankj.subutil.util;
-
-import android.content.pm.PackageManager;
-import android.graphics.SurfaceTexture;
-import android.hardware.Camera;
-import android.util.Log;
-
-import java.io.IOException;
-
-import static android.hardware.Camera.Parameters.FLASH_MODE_OFF;
-import static android.hardware.Camera.Parameters.FLASH_MODE_TORCH;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/04/27
- *     desc  : utils about flashlight
- * </pre>
- */
-public final class FlashlightUtils {
-
-    private static final String TAG = "FlashlightUtils";
-
-    private Camera mCamera;
-
-    private FlashlightUtils() {
-    }
-
-    /**
-     * Return the single {@link FlashlightUtils} instance.
-     *
-     * @return the single {@link FlashlightUtils} instance
-     */
-    public static FlashlightUtils getInstance() {
-        return LazyHolder.INSTANCE;
-    }
-
-    /**
-     * Register the utils of flashlight.
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public boolean register() {
-        try {
-            mCamera = Camera.open(0);
-        } catch (Throwable t) {
-            Log.e(TAG, "register: ", t);
-            return false;
-        }
-        if (mCamera == null) {
-            Log.e(TAG, "register: open camera failed!");
-            return false;
-        }
-        try {
-            mCamera.setPreviewTexture(new SurfaceTexture(0));
-            mCamera.startPreview();
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Unregister the utils of flashlight.
-     */
-    public void unregister() {
-        if (mCamera == null) return;
-        mCamera.stopPreview();
-        mCamera.release();
-    }
-
-    /**
-     * Turn on the flashlight.
-     */
-    public void setFlashlightOn() {
-        if (mCamera == null) {
-            Log.e(TAG, "setFlashlightOn: the utils of flashlight register failed!");
-            return;
-        }
-        Camera.Parameters parameters = mCamera.getParameters();
-        if (!FLASH_MODE_TORCH.equals(parameters.getFlashMode())) {
-            parameters.setFlashMode(FLASH_MODE_TORCH);
-            mCamera.setParameters(parameters);
-        }
-    }
-
-    /**
-     * Turn off the flashlight.
-     */
-    public void setFlashlightOff() {
-        if (mCamera == null) {
-            Log.e(TAG, "setFlashlightOn: the utils of flashlight register failed!");
-            return;
-        }
-        Camera.Parameters parameters = mCamera.getParameters();
-        if (FLASH_MODE_TORCH.equals(parameters.getFlashMode())) {
-            parameters.setFlashMode(FLASH_MODE_OFF);
-            mCamera.setParameters(parameters);
-        }
-    }
-
-    /**
-     * Return whether the flashlight is working.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public boolean isFlashlightOn() {
-        if (mCamera == null) {
-            Log.e(TAG, "setFlashlightOn: the utils of flashlight register failed!");
-            return false;
-        }
-        Camera.Parameters parameters = mCamera.getParameters();
-        return FLASH_MODE_TORCH.equals(parameters.getFlashMode());
-    }
-
-    /**
-     * Return whether the device supports flashlight.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isFlashlightEnable() {
-        return Utils.getApp()
-                .getPackageManager()
-                .hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
-    }
-
-    private static final class LazyHolder {
-        private static final FlashlightUtils INSTANCE = new FlashlightUtils();
-    }
-}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/GsonUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/GsonUtils.java
deleted file mode 100644
index 3a01fc9d12..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/GsonUtils.java
+++ /dev/null
@@ -1,124 +0,0 @@
-package com.blankj.subutil.util;
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-
-import java.io.Reader;
-import java.lang.reflect.Type;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/04/05
- *     desc  : utils about gson
- * </pre>
- */
-public final class GsonUtils {
-
-    private static final Gson GSON = createGson(true);
-
-    private static final Gson GSON_NO_NULLS = createGson(false);
-
-    private GsonUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Gets pre-configured {@link Gson} instance.
-     *
-     * @return {@link Gson} instance.
-     */
-    public static Gson getGson() {
-        return getGson(true);
-    }
-
-    /**
-     * Gets pre-configured {@link Gson} instance.
-     *
-     * @param serializeNulls determines if nulls will be serialized.
-     * @return {@link Gson} instance.
-     */
-    public static Gson getGson(final boolean serializeNulls) {
-        return serializeNulls ? GSON_NO_NULLS : GSON;
-    }
-
-    /**
-     * Serializes an object into json.
-     *
-     * @param object the object to serialize.
-     * @return object serialized into json.
-     */
-    public static String toJson(final Object object) {
-        return toJson(object, true);
-    }
-
-    /**
-     * Serializes an object into json.
-     *
-     * @param object       the object to serialize.
-     * @param includeNulls determines if nulls will be included.
-     * @return object serialized into json.
-     */
-    public static String toJson(final Object object, final boolean includeNulls) {
-        return includeNulls ? GSON.toJson(object) : GSON_NO_NULLS.toJson(object);
-    }
-
-
-    /**
-     * Converts {@link String} to given type.
-     *
-     * @param json the json to convert.
-     * @param type type type json will be converted to.
-     * @return instance of type
-     */
-    public static <T> T fromJson(final String json, final Class<T> type) {
-        return GSON.fromJson(json, type);
-    }
-
-    /**
-     * Converts {@link String} to given type.
-     *
-     * @param json the json to convert.
-     * @param type type type json will be converted to.
-     * @return instance of type
-     */
-    public static <T> T fromJson(final String json, final Type type) {
-        return GSON.fromJson(json, type);
-    }
-
-    /**
-     * Converts {@link Reader} to given type.
-     *
-     * @param reader the reader to convert.
-     * @param type   type type json will be converted to.
-     * @return instance of type
-     */
-    public static <T> T fromJson(final Reader reader, final Class<T> type) {
-        return GSON.fromJson(reader, type);
-    }
-
-    /**
-     * Converts {@link Reader} to given type.
-     *
-     * @param reader the reader to convert.
-     * @param type   type type json will be converted to.
-     * @return instance of type
-     */
-    public static <T> T fromJson(final Reader reader, final Type type) {
-        return GSON.fromJson(reader, type);
-    }
-
-    /**
-     * Create a pre-configured {@link Gson} instance.
-     *
-     * @param serializeNulls determines if nulls will be serialized.
-     * @return {@link Gson} instance.
-     */
-    private static Gson createGson(final boolean serializeNulls) {
-        final GsonBuilder builder = new GsonBuilder();
-        if (serializeNulls) builder.serializeNulls();
-        return builder.create();
-    }
-}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/RomUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/RomUtils.java
deleted file mode 100644
index 97d5d8f17f..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/RomUtils.java
+++ /dev/null
@@ -1,202 +0,0 @@
-package com.blankj.subutil.util;
-
-import android.annotation.SuppressLint;
-import android.os.Build;
-import android.os.Environment;
-import android.text.TextUtils;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.lang.reflect.Method;
-import java.util.Properties;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/07/04
- *     desc  : utils about rom
- * </pre>
- */
-public final class RomUtils {
-
-    public static final String SYS_EMUI     = "emui";
-    public static final String SYS_MIUI     = "miui";
-    public static final String SYS_FLYME    = "flyme";
-    public static final String SYS_COLOROS  = "colorOs";
-    public static final String SYS_FUNTOUCH = "Funtouch";
-    public static final String SYS_SAMSUNG  = "samsung";
-
-    ///////////////////////////////////////////////////////////////////////////
-    // MIUI
-    ///////////////////////////////////////////////////////////////////////////
-    private static final String KEY_MIUI_VERSION_CODE        = "ro.miui.ui.version.code";
-    private static final String KEY_MIUI_VERSION_NAME        = "ro.miui.ui.version.name";
-    private static final String KEY_MIUI_INTERNAL_STORAGE    = "ro.miui.internal.storage";
-    private static final String KEY_MIUI_VERSION_INCREMENTAL = "ro.build.version.incremental";
-
-    ///////////////////////////////////////////////////////////////////////////
-    // EMUI
-    ///////////////////////////////////////////////////////////////////////////
-    private static final String KEY_EMUI_API_LEVEL             = "ro.build.hw_emui_api_level";
-    private static final String KEY_EMUI_VERSION               = "ro.build.version.emui";
-    private static final String KEY_EMUI_CONFIG_HW_SYS_VERSION = "ro.confg.hw_systemversion";
-
-    ///////////////////////////////////////////////////////////////////////////
-    // OPPO
-    ///////////////////////////////////////////////////////////////////////////
-    private static final String KEY_OPPO_NAME    = "ro.rom.different.version";
-    private static final String KEY_OPPO_VERSION = "ro.build.version.opporom";
-
-    ///////////////////////////////////////////////////////////////////////////
-    // VIVO
-    ///////////////////////////////////////////////////////////////////////////
-    private static final String KEY_VIVO_NAME    = "ro.vivo.os.name";
-    private static final String KEY_VIVO_VERSION = "ro.vivo.os.version";
-
-    private static RomBean bean = null;
-
-    /**
-     * Return the name of rom.
-     *
-     * @return the name of rom
-     */
-    public static RomBean getRom() {
-        if (bean != null) return bean;
-        bean = new RomBean();
-        // 小米
-        if (!TextUtils.isEmpty(getSystemProperty(KEY_MIUI_VERSION_CODE))
-                || !TextUtils.isEmpty(getSystemProperty(KEY_MIUI_VERSION_NAME))
-                || !TextUtils.isEmpty(getSystemProperty(KEY_MIUI_INTERNAL_STORAGE))) {
-            bean.setRomName(SYS_MIUI);
-            bean.setRomVersion(getSystemProperty(KEY_MIUI_VERSION_INCREMENTAL));
-        }
-        // 华为
-        else if (!TextUtils.isEmpty(getSystemProperty(KEY_EMUI_API_LEVEL))
-                || !TextUtils.isEmpty(getSystemProperty(KEY_EMUI_VERSION))
-                || !TextUtils.isEmpty(getSystemProperty(KEY_EMUI_CONFIG_HW_SYS_VERSION))) {
-            bean.setRomName(SYS_EMUI);
-            String version = getSystemProperty(KEY_EMUI_VERSION);// EmotionUI_2.0
-            String[] temp = version.split("_");
-            if (temp.length > 1) {
-                bean.setRomVersion(temp[1]);
-            } else {
-                bean.setRomVersion(version);
-            }
-        }
-        // 魅族
-        else if (Build.DISPLAY.toLowerCase().contains("flyme")) {
-            bean.setRomName(SYS_FLYME);
-            bean.setRomVersion(Build.DISPLAY);
-            return bean;
-        }
-        // OPPO
-        else if (!TextUtils.isEmpty(getSystemProperty(KEY_OPPO_NAME)) &&
-                getSystemProperty(KEY_OPPO_NAME).toLowerCase().contains("coloros")) {
-            bean.setRomName(SYS_COLOROS);
-            bean.setRomVersion(getSystemProperty(KEY_OPPO_VERSION));
-        }
-        // VIVO
-        else if (!TextUtils.isEmpty(getSystemProperty(KEY_VIVO_NAME))) {
-            bean.setRomName(SYS_FUNTOUCH);
-            bean.setRomVersion(getSystemProperty(KEY_VIVO_VERSION));
-        }
-        // 其他手机
-        else {
-            String brand = Build.BRAND;
-            bean.setRomName(Build.BRAND);
-            if (SYS_SAMSUNG.equalsIgnoreCase(brand)) {
-                bean.setRomVersion(getSystemProperty("ro.build.changelist"));
-            }
-        }
-        return bean;
-    }
-
-    private static String getSystemProperty(final String name) {
-        String prop = getSystemPropertyByShell(name);
-        if (!TextUtils.isEmpty(prop)) return prop;
-        prop = getSystemPropertyByStream(name);
-        if (!TextUtils.isEmpty(prop)) return prop;
-        if (Build.VERSION.SDK_INT < 28) {
-            return getSystemPropertyByReflect(name);
-        }
-        return prop;
-    }
-
-    private static String getSystemPropertyByShell(final String propName) {
-        String line;
-        BufferedReader input = null;
-        try {
-            Process p = Runtime.getRuntime().exec("getprop " + propName);
-            input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
-            return input.readLine();
-        } catch (IOException e) {
-            return "";
-        } finally {
-            if (input != null) {
-                try {
-                    input.close();
-                } catch (IOException ignore) {
-
-                }
-            }
-        }
-    }
-
-    private static String getSystemPropertyByStream(final String key) {
-        try {
-            Properties prop = new Properties();
-            FileInputStream is = new FileInputStream(
-                    new File(Environment.getRootDirectory(), "build.prop")
-            );
-            prop.load(is);
-            return prop.getProperty(key, "");
-        } catch (Exception e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    private static String getSystemPropertyByReflect(String key) {
-        try {
-            @SuppressLint("PrivateApi")
-            Class<?> clz = Class.forName("android.os.SystemProperties");
-            Method get = clz.getMethod("get", String.class, String.class);
-            return (String) get.invoke(clz, key, "");
-        } catch (Exception e) {
-            return "";
-        }
-    }
-
-    public static class RomBean {
-        private String romName;
-        private String romVersion;
-
-        public String getRomName() {
-            if (romName == null) return "";
-            return romName;
-        }
-
-        private void setRomName(String romName) {
-            this.romName = romName;
-        }
-
-        public String getRomVersion() {
-            if (romVersion == null) return "";
-            return romVersion;
-        }
-
-        private void setRomVersion(String romVersion) {
-            this.romVersion = romVersion;
-        }
-
-        @Override
-        public String toString() {
-            return "romName: " + romName +
-                    "\nromVersion: " + romVersion;
-        }
-    }
-}
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/Utils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/Utils.java
deleted file mode 100644
index 9cbf4e06fd..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/Utils.java
+++ /dev/null
@@ -1,143 +0,0 @@
-package com.blankj.subutil.util;
-
-import android.annotation.SuppressLint;
-import android.app.Application;
-import android.content.ContentProvider;
-import android.content.ContentValues;
-import android.content.Context;
-import android.database.Cursor;
-import android.net.Uri;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-
-import java.lang.reflect.InvocationTargetException;
-
-/**
- * <pre>
- *     author:
- *                                      ___           ___           ___         ___
- *         _____                       /  /\         /__/\         /__/|       /  /\
- *        /  /::\                     /  /::\        \  \:\       |  |:|      /  /:/
- *       /  /:/\:\    ___     ___    /  /:/\:\        \  \:\      |  |:|     /__/::\
- *      /  /:/~/::\  /__/\   /  /\  /  /:/~/::\   _____\__\:\   __|  |:|     \__\/\:\
- *     /__/:/ /:/\:| \  \:\ /  /:/ /__/:/ /:/\:\ /__/::::::::\ /__/\_|:|____    \  \:\
- *     \  \:\/:/~/:/  \  \:\  /:/  \  \:\/:/__\/ \  \:\~~\~~\/ \  \:\/:::::/     \__\:\
- *      \  \::/ /:/    \  \:\/:/    \  \::/       \  \:\  ~~~   \  \::/~~~~      /  /:/
- *       \  \:\/:/      \  \::/      \  \:\        \  \:\        \  \:\         /__/:/
- *        \  \::/        \__\/        \  \:\        \  \:\        \  \:\        \__\/
- *         \__\/                       \__\/         \__\/         \__\/
- *     blog  : http://blankj.com
- *     time  : 16/12/08
- *     desc  : utils about initialization
- * </pre>
- */
-public final class Utils {
-
-    @SuppressLint("StaticFieldLeak")
-    private static Application sApplication;
-
-    private Utils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Init utils.
-     * <p>Init it in the class of Application.</p>
-     *
-     * @param context context
-     */
-    public static void init(final Context context) {
-        if (context == null) {
-            init(getApplicationByReflect());
-            return;
-        }
-        init((Application) context.getApplicationContext());
-    }
-
-    /**
-     * Init utils.
-     * <p>Init it in the class of Application.</p>
-     *
-     * @param app application
-     */
-    public static void init(final Application app) {
-        if (sApplication == null) {
-            if (app == null) {
-                Utils.sApplication = getApplicationByReflect();
-            } else {
-                Utils.sApplication = app;
-            }
-        }
-    }
-
-    /**
-     * Return the context of Application object.
-     *
-     * @return the context of Application object
-     */
-    public static Application getApp() {
-        if (sApplication != null) return sApplication;
-        return getApplicationByReflect();
-    }
-
-    private static Application getApplicationByReflect() {
-        try {
-            @SuppressLint("PrivateApi")
-            Class<?> activityThread = Class.forName("android.app.ActivityThread");
-            Object at = activityThread.getMethod("currentActivityThread").invoke(null);
-            Object app = activityThread.getMethod("getApplication").invoke(at);
-            if (app == null) {
-                throw new NullPointerException("u should init first");
-            }
-            init((Application) app);
-            return sApplication;
-        } catch (NoSuchMethodException e) {
-            e.printStackTrace();
-        } catch (IllegalAccessException e) {
-            e.printStackTrace();
-        } catch (InvocationTargetException e) {
-            e.printStackTrace();
-        } catch (ClassNotFoundException e) {
-            e.printStackTrace();
-        }
-        throw new NullPointerException("u should init first");
-    }
-
-
-    public static final class ContentProvider4SubUtil extends ContentProvider {
-
-        @Override
-        public boolean onCreate() {
-            Utils.init(getContext());
-            return true;
-        }
-
-        @Nullable
-        @Override
-        public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) {
-            return null;
-        }
-
-        @Nullable
-        @Override
-        public String getType(@NonNull Uri uri) {
-            return null;
-        }
-
-        @Nullable
-        @Override
-        public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) {
-            return null;
-        }
-
-        @Override
-        public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) {
-            return 0;
-        }
-
-        @Override
-        public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs) {
-            return 0;
-        }
-    }
-}
\ No newline at end of file
diff --git a/subutil/lib/src/main/java/com/blankj/subutil/util/VibrationUtils.java b/subutil/lib/src/main/java/com/blankj/subutil/util/VibrationUtils.java
deleted file mode 100644
index 0985367cf9..0000000000
--- a/subutil/lib/src/main/java/com/blankj/subutil/util/VibrationUtils.java
+++ /dev/null
@@ -1,49 +0,0 @@
-package com.blankj.subutil.util;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : 震动相关工具类
- * </pre>
- */
-public final class VibrationUtils {
-
-//    private VibrationUtils() {
-//        throw new UnsupportedOperationException("u can't instantiate me...");
-//    }
-//
-//    /**
-//     * 震动
-//     * <p>需添加权限 {@code <uses-permission android:name="android.permission.VIBRATE" />}</p>
-//     *
-//     * @param context      上下文
-//     * @param milliseconds 振动时长
-//     */
-//    public static void vibrate(final Context context, final long milliseconds) {
-//        Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
-//        vibrator.vibrate(milliseconds);
-//    }
-//
-//    /**
-//     * 指定手机以pattern模式振动
-//     *
-//     * @param context
-//     * @param pattern new long[]{400,800,1200,1600}，就是指定在400ms、800ms、1200ms、1600ms这些时间点交替启动、关闭手机振动器
-//     * @param repeat  指定pattern数组的索引，指定pattern数组中从repeat索引开始的振动进行循环。-1表示只振动一次，非-1表示从 pattern的指定下标开始重复振动。
-//     */
-//    public static void vibrate(final Context context, final long[] pattern, final int repeat) {
-//        Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
-//        vibrator.vibrate(pattern, repeat);
-//    }
-//
-//    /**
-//     * 取消振动
-//     *
-//     * @param context 上下文
-//     */
-//    public static void cancel(final Context context) {
-//        ((Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE)).cancel();
-//    }
-}
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/ClipboardUtilsTest.java b/subutil/lib/src/test/java/com/blankj/subutil/util/ClipboardUtilsTest.java
deleted file mode 100644
index e1d550fb5c..0000000000
--- a/subutil/lib/src/test/java/com/blankj/subutil/util/ClipboardUtilsTest.java
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.blankj.subutil.util;
-
-import android.content.Intent;
-import android.net.Uri;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.annotation.Config;
-
-import static org.junit.Assert.assertEquals;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/26
- *     desc  : ClipboardUtils 单元测试
- * </pre>
- */
-@RunWith(RobolectricTestRunner.class)
-@Config(manifest = Config.NONE)
-public class ClipboardUtilsTest {
-
-    static {
-        TestUtils.init();
-    }
-
-    @Test
-    public void testText() throws Exception {
-        ClipboardUtils.copyText("test");
-        assertEquals("test", ClipboardUtils.getText());
-    }
-
-    @Test
-    public void testUri() throws Exception {
-        ClipboardUtils.copyUri(Uri.parse("http://www.blankj.com"));
-        System.out.println((ClipboardUtils.getUri()));
-    }
-
-    @Test
-    public void testIntent() throws Exception {
-        Intent intent = new Intent();
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        intent.setAction(Intent.ACTION_DIAL);
-        ClipboardUtils.copyIntent(intent);
-        System.out.println(ClipboardUtils.getText());
-    }
-}
\ No newline at end of file
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/CloneUtilsTest.java b/subutil/lib/src/test/java/com/blankj/subutil/util/CloneUtilsTest.java
deleted file mode 100644
index 5667248e07..0000000000
--- a/subutil/lib/src/test/java/com/blankj/subutil/util/CloneUtilsTest.java
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.blankj.subutil.util;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-import java.io.Serializable;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/04/08
- *     desc  : test CloneUtils
- * </pre>
- */
-public class CloneUtilsTest {
-
-    @Test
-    public void deepClone() throws Exception {
-        Person person = new Person("Blankj");
-        Person clonePerson = CloneUtils.deepClone(person);
-        System.out.println(person);
-        System.out.println(clonePerson);
-        Assert.assertNotEquals(person, clonePerson);
-    }
-
-    static class Person implements Serializable {
-
-        String name;
-        int    gender;
-        String address;
-
-        public Person(String name) {
-            this.name = name;
-            this.gender = gender;
-            this.address = address;
-        }
-
-        @Override
-        public String toString() {
-            return "{\"name\":" + name + ",\"gender\":" + gender + ",\"address\":" + address + "}";
-        }
-    }
-}
\ No newline at end of file
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/GsonUtilsTest.java b/subutil/lib/src/test/java/com/blankj/subutil/util/GsonUtilsTest.java
deleted file mode 100644
index c941a13042..0000000000
--- a/subutil/lib/src/test/java/com/blankj/subutil/util/GsonUtilsTest.java
+++ /dev/null
@@ -1,73 +0,0 @@
-package com.blankj.subutil.util;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/26
- *     desc  : test GsonUtils
- * </pre>
- */
-public class GsonUtilsTest {
-
-    @Test
-    public void getGson() {
-        Assert.assertNotNull(GsonUtils.getGson());
-        Assert.assertNotNull(GsonUtils.getGson(false));
-    }
-
-    @Test
-    public void toJson() {
-        Person person = new Person("Blankj");
-        Assert.assertEquals(
-                "{\"name\":\"Blankj\",\"gender\":0,\"address\":null}",
-                GsonUtils.toJson(person)
-        );
-        Assert.assertEquals(
-                "{\"name\":\"Blankj\",\"gender\":0}",
-                GsonUtils.toJson(person, false)
-        );
-    }
-
-    @Test
-    public void fromJson() {
-        Person person = new Person("Blankj");
-        Assert.assertEquals(
-                person,
-                GsonUtils.fromJson("{\"name\":\"Blankj\",\"gender\":0,\"address\":null}", Person.class)
-        );
-        Assert.assertEquals(
-                person,
-                GsonUtils.fromJson("{\"name\":\"Blankj\",\"gender\":0}", Person.class)
-        );
-    }
-
-    static class Person {
-
-        String name;
-        int    gender;
-        String address;
-
-        public Person(String name) {
-            this.name = name;
-            this.gender = gender;
-            this.address = address;
-        }
-
-        @Override
-        public boolean equals(Object obj) {
-            if (obj == this) return true;
-            if (obj == null || !(obj instanceof Person)) return false;
-            Person p = (Person) obj;
-            return equals(name, p.name) && p.gender == gender && equals(address, p.address);
-        }
-
-        private boolean equals(final Object o1, final Object o2) {
-            return o1 == o2 || (o1 != null && o1.equals(o2));
-        }
-    }
-}
\ No newline at end of file
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/TestConfig.java b/subutil/lib/src/test/java/com/blankj/subutil/util/TestConfig.java
deleted file mode 100644
index 2412a761b9..0000000000
--- a/subutil/lib/src/test/java/com/blankj/subutil/util/TestConfig.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.blankj.subutil.util;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/09/10
- *     desc  : config of test
- * </pre>
- */
-public class TestConfig {
-
-    static final String FILE_SEP = System.getProperty("file.separator");
-
-    static final String LINE_SEP = System.getProperty("line.separator");
-
-    static final String TEST_PATH;
-
-    static {
-        String projectPath = System.getProperty("user.dir");
-        if (!projectPath.contains("subutil")) {
-            projectPath += FILE_SEP + "subutil";
-        }
-        TEST_PATH = projectPath + FILE_SEP + "src" + FILE_SEP + "test" + FILE_SEP + "res";
-    }
-}
diff --git a/subutil/lib/src/test/java/com/blankj/subutil/util/TestUtils.java b/subutil/lib/src/test/java/com/blankj/subutil/util/TestUtils.java
deleted file mode 100644
index 6f308ce9b3..0000000000
--- a/subutil/lib/src/test/java/com/blankj/subutil/util/TestUtils.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.blankj.subutil.util;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
-import org.robolectric.annotation.Config;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/21
- *     desc  : utils about test
- * </pre>
- */
-@RunWith(RobolectricTestRunner.class)
-@Config(manifest = Config.NONE)
-public class TestUtils {
-
-    public static void init() {
-        Utils.init(RuntimeEnvironment.application);
-    }
-
-    @Test
-    public void test() throws Exception {
-        System.out.println(-1 << 2);
-    }
-}
\ No newline at end of file
diff --git a/subutil/pkg/build.gradle b/subutil/pkg/build.gradle
deleted file mode 100644
index 5d7fe91a1f..0000000000
--- a/subutil/pkg/build.gradle
+++ /dev/null
@@ -1,34 +0,0 @@
-apply plugin: 'com.android.library'
-
-android {
-    compileSdkVersion 28
-
-
-
-    defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 28
-        versionCode 1
-        versionName "1.0"
-
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
-
-}
-
-dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-}
diff --git a/subutil/pkg/src/main/AndroidManifest.xml b/subutil/pkg/src/main/AndroidManifest.xml
deleted file mode 100644
index 52c51f2ee4..0000000000
--- a/subutil/pkg/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.pkgutilcode" />
diff --git a/subutil/pkg/src/main/res/values/strings.xml b/subutil/pkg/src/main/res/values/strings.xml
deleted file mode 100644
index e533fc7489..0000000000
--- a/subutil/pkg/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <string name="app_name">pkgutilcode</string>
-</resources>
diff --git a/utilcode/README-CN.md b/utilcode/README-CN.md
deleted file mode 100644
index eca1c95f27..0000000000
--- a/utilcode/README-CN.md
+++ /dev/null
@@ -1,936 +0,0 @@
-## Download
-
-Gradle:
-```groovy
-implementation 'com.blankj:utilcode:1.21.2'
-```
-
-
-## APIs
-
-* ### Activity 相关 -> [ActivityUtils.java][activity.java] -> [Demo][activity.demo]
-```
-isActivityExists               : 判断 Activity 是否存在
-startActivity                  : 启动 Activity
-startActivityForResult         : 启动 Activity 为返回结果
-startActivities                : 启动多个 Activity
-startHomeActivity              : 回到桌面
-getActivityList                : 获取 Activity 栈链表
-getLauncherActivity            : 获取启动项 Activity
-getTopActivity                 : 获取栈顶 Activity
-isActivityExistsInStack        : 判断 Activity 是否存在栈中
-finishActivity                 : 结束 Activity
-finishToActivity               : 结束到指定 Activity
-finishOtherActivities          : 结束所有其他类型的 Activity
-finishAllActivities            : 结束所有 Activity
-finishAllActivitiesExceptNewest: 结束除最新之外的所有 Activity
-```
-
-* ### AdaptScreen 相关 -> [AdaptScreenUtils.java][adaptScreen.java] -> [Demo][adaptScreen.demo]
-```
-adaptWidth : 适配宽度
-adaptHeight: 适配高度
-closeAdapt : 关闭适配（pt 等同于 dp）
-pt2Px      : pt 转 px
-px2Pt      : px 转 pt
-```
-
-* ### App 相关 -> [AppUtils.java][app.java] -> [Demo][app.demo]
-```
-registerAppStatusChangedListener  : 注册 App 前后台切换监听器
-unregisterAppStatusChangedListener: 注销 App 前后台切换监听器
-installApp                        : 安装 App（支持 8.0）
-installAppSilent                  : 静默安装 App
-uninstallApp                      : 卸载 App
-uninstallAppSilent                : 静默卸载 App
-isAppInstalled                    : 判断 App 是否安装
-isAppRoot                         : 判断 App 是否有 root 权限
-isAppDebug                        : 判断 App 是否是 Debug 版本
-isAppSystem                       : 判断 App 是否是系统应用
-isAppForeground                   : 判断 App 是否处于前台
-launchApp                         : 打开 App
-relaunchApp                       : 重启 App
-launchAppDetailsSettings          : 打开 App 具体设置
-exitApp                           : 关闭应用
-getAppIcon                        : 获取 App 图标
-getAppPackageName                 : 获取 App 包名
-getAppName                        : 获取 App 名称
-getAppPath                        : 获取 App 路径
-getAppVersionName                 : 获取 App 版本号
-getAppVersionCode                 : 获取 App 版本码
-getAppSignature                   : 获取 App 签名
-getAppSignatureSHA1               : 获取应用签名的的 SHA1 值
-getAppSignatureSHA256             : 获取应用签名的的 SHA256 值
-getAppSignatureMD5                : 获取应用签名的的 MD5 值
-getAppInfo                        : 获取 App 信息
-getAppsInfo                       : 获取所有已安装 App 信息
-```
-
-* ### 栏相关 -> [BarUtils.java][bar.java] -> [Demo][bar.demo]
-```
-getStatusBarHeight                   : 获取状态栏高度（px）
-setStatusBarVisibility               : 设置状态栏是否可见
-isStatusBarVisible                   : 判断状态栏是否可见
-setStatusBarLightMode                : 设置状态栏是否为浅色模式
-addMarginTopEqualStatusBarHeight     : 为 view 增加 MarginTop 为状态栏高度
-subtractMarginTopEqualStatusBarHeight: 为 view 减少 MarginTop 为状态栏高度
-setStatusBarColor                    : 设置状态栏颜色
-setStatusBarAlpha                    : 设置状态栏透明度
-setStatusBarColor4Drawer             : 为 DrawerLayout 设置状态栏颜色
-setStatusBarAlpha4Drawer             : 为 DrawerLayout 设置状态栏透明度
-getActionBarHeight                   : 获取 ActionBar 高度
-setNotificationBarVisibility         : 设置通知栏是否可见
-getNavBarHeight                      : 获取导航栏高度
-setNavBarVisibility                  : 设置导航栏是否可见
-isNavBarVisible                      : 判断导航栏是否可见
-setNavBarColor                       : 设置导航栏颜色
-getNavBarColor                       : 获取导航栏颜色
-isSupportNavBar                      : 判断是否支持导航栏
-```
-
-* ### 磁盘缓存相关 -> [CacheDiskUtils.java][cacheDisk.java] -> [Test][cacheDisk.test]
-```
-getInstance             : 获取缓存实例
-Instance.put            : 缓存中写入数据
-Instance.getBytes       : 缓存中读取字节数组
-Instance.getString      : 缓存中读取 String
-Instance.getJSONObject  : 缓存中读取 JSONObject
-Instance.getJSONArray   : 缓存中读取 JSONArray
-Instance.getBitmap      : 缓存中读取 Bitmap
-Instance.getDrawable    : 缓存中读取 Drawable
-Instance.getParcelable  : 缓存中读取 Parcelable
-Instance.getSerializable: 缓存中读取 Serializable
-Instance.getCacheSize   : 获取缓存大小
-Instance.getCacheCount  : 获取缓存个数
-Instance.remove         : 根据键值移除缓存
-Instance.clear          : 清除所有缓存
-```
-
-* ### 二级缓存相关 -> [CacheDoubleUtils.java][cacheDouble.java] -> [Test][cacheDouble.test]
-```
-getInstance                 : 获取缓存实例
-Instance.put                : 缓存中写入数据
-Instance.getBytes           : 缓存中读取字节数组
-Instance.getString          : 缓存中读取 String
-Instance.getJSONObject      : 缓存中读取 JSONObject
-Instance.getJSONArray       : 缓存中读取 JSONArray
-Instance.getBitmap          : 缓存中读取 Bitmap
-Instance.getDrawable        : 缓存中读取 Drawable
-Instance.getParcelable      : 缓存中读取 Parcelable
-Instance.getSerializable    : 缓存中读取 Serializable
-Instance.getCacheDiskSize   : 获取磁盘缓存大小
-Instance.getCacheDiskCount  : 获取磁盘缓存个数
-Instance.getCacheMemoryCount: 获取内存缓存个数
-Instance.remove             : 根据键值移除缓存
-Instance.clear              : 清除所有缓存
-```
-
-* ### 内存缓存相关 -> [CacheMemoryUtils.java][cacheMemory.java] -> [Test][cacheMemory.test]
-```
-getInstance           : 获取缓存实例
-Instance.put          : 缓存中写入数据
-Instance.get          : 缓存中读取字节数组
-Instance.getCacheCount: 获取缓存个数
-Instance.remove       : 根据键值移除缓存
-Instance.clear        : 清除所有缓存
-```
-
-* ### 清除相关 -> [CleanUtils.java][clean.java] -> [Demo][clean.demo]
-```
-cleanInternalCache   : 清除内部缓存
-cleanInternalFiles   : 清除内部文件
-cleanInternalDbs     : 清除内部数据库
-cleanInternalDbByName: 根据名称清除数据库
-cleanInternalSp      : 清除内部 SP
-cleanExternalCache   : 清除外部缓存
-cleanCustomDir       : 清除自定义目录下的文件
-```
-
-* ### 关闭相关 -> [CloseUtils.java][close.java]
-```
-closeIO       : 关闭 IO
-closeIOQuietly: 安静关闭 IO
-```
-
-* ### 转换相关 -> [ConvertUtils.java][convert.java] -> [Test][convert.test]
-```
-bytes2Bits, bits2Bytes                  : bytes 与 bits 互转
-bytes2Chars, chars2Bytes                : bytes 与 chars 互转
-bytes2HexString, hexString2Bytes        : bytes 与 hexString 互转
-memorySize2Byte, byte2MemorySize        : 以 unit 为单位的内存大小与字节数互转
-byte2FitMemorySize                      : 字节数转合适内存大小
-timeSpan2Millis, millis2TimeSpan        : 以 unit 为单位的时间长度与毫秒时间戳互转
-millis2FitTimeSpan                      : 毫秒时间戳转合适时间长度
-input2OutputStream, output2InputStream  : inputStream 与 outputStream 互转
-inputStream2Bytes, bytes2InputStream    : inputStream 与 bytes 互转
-outputStream2Bytes, bytes2OutputStream  : outputStream 与 bytes 互转
-inputStream2String, string2InputStream  : inputStream 与 string 按编码互转
-outputStream2String, string2OutputStream: outputStream 与 string 按编码互转
-bitmap2Bytes, bytes2Bitmap              : bitmap 与 bytes 互转
-drawable2Bitmap, bitmap2Drawable        : drawable 与 bitmap 互转
-drawable2Bytes, bytes2Drawable          : drawable 与 bytes 互转
-view2Bitmap                             : view 转 Bitmap
-dp2px, px2dp                            : dp 与 px 互转
-sp2px, px2sp                            : sp 与 px 互转
-```
-
-* ### 崩溃相关 -> [CrashUtils.java][crash.java]
-```
-init: 初始化
-```
-
-* ### 设备相关 -> [DeviceUtils.java][device.java] -> [Demo][device.demo]
-```
-isDeviceRooted   : 判断设备是否 rooted
-isAdbEnabled     : 判断设备 ADB 是否可用
-getSDKVersionName: 获取设备系统版本号
-getSDKVersionCode: 获取设备系统版本码
-getAndroidID     : 获取设备 AndroidID
-getMacAddress    : 获取设备 MAC 地址
-getManufacturer  : 获取设备厂商
-getModel         : 获取设备型号
-getABIs          : 获取设备 ABIs
-shutdown         : 关机
-reboot           : 重启
-reboot2Recovery  : 重启到 recovery
-reboot2Bootloader: 重启到 bootloader
-```
-
-* ### 编码解码相关 -> [EncodeUtils.java][encode.java] -> [Test][encode.test]
-```
-urlEncode          : URL 编码
-urlDecode          : URL 解码
-base64Encode       : Base64 编码
-base64Encode2String: Base64 编码
-base64Decode       : Base64 解码
-htmlEncode         : Html 编码
-htmlDecode         : Html 解码
-```
-
-* ### 加密解密相关 -> [EncryptUtils.java][encrypt.java] -> [Test][encrypt.test]
-```
-encryptMD2, encryptMD2ToString                        : MD2 加密
-encryptMD5, encryptMD5ToString                        : MD5 加密
-encryptMD5File, encryptMD5File2String                 : MD5 加密文件
-encryptSHA1, encryptSHA1ToString                      : SHA1 加密
-encryptSHA224, encryptSHA224ToString                  : SHA224 加密
-encryptSHA256, encryptSHA256ToString                  : SHA256 加密
-encryptSHA384, encryptSHA384ToString                  : SHA384 加密
-encryptSHA512, encryptSHA512ToString                  : SHA512 加密
-encryptHmacMD5, encryptHmacMD5ToString                : HmacMD5 加密
-encryptHmacSHA1, encryptHmacSHA1ToString              : HmacSHA1 加密
-encryptHmacSHA224, encryptHmacSHA224ToString          : HmacSHA224 加密
-encryptHmacSHA256, encryptHmacSHA256ToString          : HmacSHA256 加密
-encryptHmacSHA384, encryptHmacSHA384ToString          : HmacSHA384 加密
-encryptHmacSHA512, encryptHmacSHA512ToString          : HmacSHA512 加密
-encryptDES, encryptDES2HexString, encryptDES2Base64   : DES 加密
-decryptDES, decryptHexStringDES, decryptBase64DES     : DES 解密
-encrypt3DES, encrypt3DES2HexString, encrypt3DES2Base64: 3DES 加密
-decrypt3DES, decryptHexString3DES, decryptBase64_3DES : 3DES 解密
-encryptAES, encryptAES2HexString, encryptAES2Base64   : AES 加密
-decryptAES, decryptHexStringAES, decryptBase64AES     : AES 解密
-encryptRSA, encryptRSA2HexString, encryptRSA2Base64   : RSA 加密
-decryptRSA, decryptHexStringRSA, decryptBase64RSA     : RSA 解密
-```
-
-* ### 文件相关 -> [fileIOUtils.java][fileIo.java] -> [Test][fileIo.test]
-```
-writeFileFromIS            : 将输入流写入文件
-writeFileFromBytesByStream : 将字节数组写入文件
-writeFileFromBytesByChannel: 将字节数组写入文件
-writeFileFromBytesByMap    : 将字节数组写入文件
-writeFileFromString        : 将字符串写入文件
-readFile2List              : 读取文件到字符串链表中
-readFile2String            : 读取文件到字符串中
-readFile2BytesByStream     : 读取文件到字节数组中
-readFile2BytesByChannel    : 读取文件到字节数组中
-readFile2BytesByMap        : 读取文件到字节数组中
-setBufferSize              : 设置缓冲区尺寸
-```
-
-* ### 文件相关 -> [FileUtils.java][file.java] -> [Test][file.test]
-```
-getFileByPath             : 根据文件路径获取文件
-isFileExists              : 判断文件是否存在
-rename                    : 重命名文件
-isDir                     : 判断是否是目录
-isFile                    : 判断是否是文件
-createOrExistsDir         : 判断目录是否存在，不存在则判断是否创建成功
-createOrExistsFile        : 判断文件是否存在，不存在则判断是否创建成功
-createFileByDeleteOldFile : 判断文件是否存在，存在则在创建之前删除
-copyDir                   : 复制目录
-copyFile                  : 复制文件
-moveDir                   : 移动目录
-moveFile                  : 移动文件
-delete                    : 删除文件或目录
-deleteDir                 : 删除目录
-deleteFile                : 删除文件
-deleteAllInDir            : 删除目录下所有东西
-deleteFilesInDir          : 删除目录下所有文件
-deleteFilesInDirWithFilter: 删除目录下所有过滤的文件
-listFilesInDir            : 获取目录下所有文件
-listFilesInDirWithFilter  : 获取目录下所有过滤的文件
-getFileLastModified       : 获取文件最后修改的毫秒时间戳
-getFileCharsetSimple      : 简单获取文件编码格式
-getFileLines              : 获取文件行数
-getDirSize                : 获取目录大小
-getFileSize               : 获取文件大小
-getDirLength              : 获取目录长度
-getFileLength             : 获取文件长度
-getFileMD5                : 获取文件的 MD5 校验码
-getFileMD5ToString        : 获取文件的 MD5 校验码
-getDirName                : 根据全路径获取最长目录
-getFileName               : 根据全路径获取文件名
-getFileNameNoExtension    : 根据全路径获取文件名不带拓展名
-getFileExtension          : 根据全路径获取文件拓展名
-```
-
-* ### Fragment 相关 -> [FragmentUtils.java][fragment.java] -> [Demo][fragment.demo]
-```
-add                   : 新增 fragment
-show                  : 显示 fragment
-hide                  : 隐藏 fragment
-showHide              : 先显示后隐藏 fragment
-replace               : 替换 fragment
-pop                   : 出栈 fragment
-popTo                 : 出栈到指定 fragment
-popAll                : 出栈所有 fragment
-remove                : 移除 fragment
-removeTo              : 移除到指定 fragment
-removeAll             : 移除所有 fragment
-getTop                : 获取顶部 fragment
-getTopInStack         : 获取栈中顶部 fragment
-getTopShow            : 获取顶部可见 fragment
-getTopShowInStack     : 获取栈中顶部可见 fragment
-getFragments          : 获取同级别的 fragment
-getFragmentsInStack   : 获取同级别栈中的 fragment
-getAllFragments       : 获取所有 fragment
-getAllFragmentsInStack: 获取栈中所有 fragment
-findFragment          : 查找 fragment
-dispatchBackPress     : 处理 fragment 回退键
-setBackgroundColor    : 设置背景色
-setBackgroundResource : 设置背景资源
-setBackground         : 设置背景
-```
-
-* ### 图片相关 -> [ImageUtils.java][image.java] -> [Demo][image.demo]
-```
-bitmap2Bytes, bytes2Bitmap      : bitmap 与 bytes 互转
-drawable2Bitmap, bitmap2Drawable: drawable 与 bitmap 互转
-drawable2Bytes, bytes2Drawable  : drawable 与 bytes 互转
-view2Bitmap                     : view 转 bitmap
-getBitmap                       : 获取 bitmap
-scale                           : 缩放图片
-clip                            : 裁剪图片
-skew                            : 倾斜图片
-rotate                          : 旋转图片
-getRotateDegree                 : 获取图片旋转角度
-toRound                         : 转为圆形图片
-toRoundCorner                   : 转为圆角图片
-addCornerBorder                 : 添加圆角边框
-addCircleBorder                 : 添加圆形边框
-addReflection                   : 添加倒影
-addTextWatermark                : 添加文字水印
-addImageWatermark               : 添加图片水印
-toAlpha                         : 转为 alpha 位图
-toGray                          : 转为灰度图片
-fastBlur                        : 快速模糊
-renderScriptBlur                : renderScript 模糊图片
-stackBlur                       : stack 模糊图片
-save                            : 保存图片
-isImage                         : 根据文件名判断文件是否为图片
-getImageType                    : 获取图片类型
-compressByScale                 : 按缩放压缩
-compressByQuality               : 按质量压缩
-compressBySampleSize            : 按采样大小压缩
-```
-
-* ### 意图相关 -> [IntentUtils.java][intent.java]
-```
-isIntentAvailable                : 判断意图是否可用
-getInstallAppIntent              : 获取安装 App（支持 6.0）的意图
-getUninstallAppIntent            : 获取卸载 App 的意图
-getLaunchAppIntent               : 获取打开 App 的意图
-getLaunchAppDetailsSettingsIntent: 获取 App 具体设置的意图
-getShareTextIntent               : 获取分享文本的意图
-getShareImageIntent              : 获取分享图片的意图
-getComponentIntent               : 获取其他应用组件的意图
-getShutdownIntent                : 获取关机的意图
-getCaptureIntent                 : 获取拍照的意图
-```
-
-* ### 键盘相关 -> [KeyboardUtils.java][keyboard.java] -> [Demo][keyboard.demo]
-```
-showSoftInput                     : 显示软键盘
-showSoftInputUsingToggle          : 显示软键盘用 toggle
-hideSoftInput                     : 隐藏软键盘
-hideSoftInputUsingToggle          : 隐藏软键盘用 toggle
-toggleSoftInput                   : 切换键盘显示与否状态
-isSoftInputVisible                : 判断软键盘是否可见
-registerSoftInputChangedListener  : 注册软键盘改变监听器
-unregisterSoftInputChangedListener: 注销软键盘改变监听器
-fixAndroidBug5497                 : 修复安卓 5497 BUG
-fixSoftInputLeaks                 : 修复软键盘内存泄漏
-clickBlankArea2HideSoftInput      : 点击屏幕空白区域隐藏软键盘
-```
-
-* ### 日志相关 -> [LogUtils.java][log.java] -> [Demo][log.demo]
-```
-getConfig                : 获取 log 配置
-Config.setLogSwitch      : 设置 log 总开关
-Config.setConsoleSwitch  : 设置 log 控制台开关
-Config.setGlobalTag      : 设置 log 全局 tag
-Config.setLogHeadSwitch  : 设置 log 头部信息开关
-Config.setLog2FileSwitch : 设置 log 文件开关
-Config.setDir            : 设置 log 文件存储目录
-Config.setFilePrefix     : 设置 log 文件前缀
-Config.setBorderSwitch   : 设置 log 边框开关
-Config.setSingleTagSwitch: 设置 log 单一 tag 开关（为美化 AS 3.1 的 Logcat）
-Config.setConsoleFilter  : 设置 log 控制台过滤器
-Config.setFileFilter     : 设置 log 文件过滤器
-Config.setStackDeep      : 设置 log 栈深度
-Config.setStackOffset    : 设置 log 栈偏移
-Config.setSaveDays       : 设置 log 可保留天数
-Config.addFormatter      : 新增 log 格式化器
-log                      : 自定义 tag 的 type 日志
-v                        : tag 为类名的 Verbose 日志
-vTag                     : 自定义 tag 的 Verbose 日志
-d                        : tag 为类名的 Debug 日志
-dTag                     : 自定义 tag 的 Debug 日志
-i                        : tag 为类名的 Info 日志
-iTag                     : 自定义 tag 的 Info 日志
-w                        : tag 为类名的 Warn 日志
-wTag                     : 自定义 tag 的 Warn 日志
-e                        : tag 为类名的 Error 日志
-eTag                     : 自定义 tag 的 Error 日志
-a                        : tag 为类名的 Assert 日志
-aTag                     : 自定义 tag 的 Assert 日志
-file                     : log 到文件
-json                     : log 字符串之 json
-xml                      : log 字符串之 xml
-```
-
-* ### MetaData 相关 -> [MetaDataUtils.java][metaData.java] -> [Demo][metaData.demo]
-```
-getMetaDataInApp     : 获取 application 的 meta-data 值
-getMetaDataInActivity: 获取 activity 的 meta-data 值
-getMetaDataInService : 获取 service 的 meta-data 值
-getMetaDataInReceiver: 获取 receiver 的 meta-data 值
-```
-
-* ### 网络相关 -> [NetworkUtils.java][network.java] -> [Demo][network.demo]
-```
-openWirelessSettings  : 打开网络设置界面
-isConnected           : 判断网络是否连接
-isAvailableByPing     : 判断网络是否可用
-getMobileDataEnabled  : 判断移动数据是否打开
-setMobileDataEnabled  : 打开或关闭移动数据
-isMobileData          : 判断网络是否是移动数据
-is4G                  : 判断网络是否是 4G
-getWifiEnabled        : 判断 wifi 是否打开
-setWifiEnabled        : 打开或关闭 wifi
-isWifiConnected       : 判断 wifi 是否连接状态
-isWifiAvailable       : 判断 wifi 数据是否可用
-getNetworkOperatorName: 获取移动网络运营商名称
-getNetworkType        : 获取当前网络类型
-getIPAddress          : 获取 IP 地址
-getDomainAddress      : 获取域名 IP 地址
-getIpAddressByWifi    : 根据 WiFi 获取网络 IP 地址
-getGatewayByWifi      : 根据 WiFi 获取网关 IP 地址
-getNetMaskByWifi      : 根据 WiFi 获取子网掩码 IP 地址
-getServerAddressByWifi: 根据 WiFi 获取服务端 IP 地址
-```
-
-* ### 对象相关 -> [ObjectUtils.java][object.java] -> [Test][object.test]
-```
-isEmpty       : 判断对象是否为空
-isNotEmpty    : 判断对象是否非空
-equals        : 判断对象是否相等
-requireNonNull: 检查对象非空
-getOrDefault  : 获取非空或默认对象
-hashCode      : 获取对象哈希值
-```
-
-* ### 路径相关 -> [PathUtils.java][path.java] -> [Demo][path.demo]
-```
-getRootPath                    : 获取根路径
-getDataPath                    : 获取数据路径
-getDownloadCachePath           : 获取下载缓存路径
-getInternalAppDataPath         : 获取内存应用数据路径
-getInternalAppCodeCacheDir     : 获取内存应用代码缓存路径
-getInternalAppCachePath        : 获取内存应用缓存路径
-getInternalAppDbsPath          : 获取内存应用数据库路径
-getInternalAppDbPath           : 获取内存应用数据库路径
-getInternalAppFilesPath        : 获取内存应用文件路径
-getInternalAppSpPath           : 获取内存应用 SP 路径
-getInternalAppNoBackupFilesPath: 获取内存应用未备份文件路径
-getExternalStoragePath         : 获取外存路径
-getExternalMusicPath           : 获取外存音乐路径
-getExternalPodcastsPath        : 获取外存播客路径
-getExternalRingtonesPath       : 获取外存铃声路径
-getExternalAlarmsPath          : 获取外存闹铃路径
-getExternalNotificationsPath   : 获取外存通知路径
-getExternalPicturesPath        : 获取外存图片路径
-getExternalMoviesPath          : 获取外存影片路径
-getExternalDownloadsPath       : 获取外存下载路径
-getExternalDcimPath            : 获取外存数码相机图片路径
-getExternalDocumentsPath       : 获取外存文档路径
-getExternalAppDataPath         : 获取外存应用数据路径
-getExternalAppCachePath        : 获取外存应用缓存路径
-getExternalAppFilesPath        : 获取外存应用文件路径
-getExternalAppMusicPath        : 获取外存应用音乐路径
-getExternalAppPodcastsPath     : 获取外存应用播客路径
-getExternalAppRingtonesPath    : 获取外存应用铃声路径
-getExternalAppAlarmsPath       : 获取外存应用闹铃路径
-getExternalAppNotificationsPath: 获取外存应用通知路径
-getExternalAppPicturesPath     : 获取外存应用图片路径
-getExternalAppMoviesPath       : 获取外存应用影片路径
-getExternalAppDownloadPath     : 获取外存应用下载路径
-getExternalAppDcimPath         : 获取外存应用数码相机图片路径
-getExternalAppDocumentsPath    : 获取外存应用文档路径
-getExternalAppObbPath          : 获取外存应用 OBB 路径
-```
-
-* ### 权限相关 -> [PermissionUtils.java][permission.java] -> [Demo][permission.demo]
-```
-getPermissions          : 获取应用权限
-isGranted               : 判断权限是否被授予
-launchAppDetailsSettings: 打开应用具体设置
-permission              : 设置请求权限
-rationale               : 设置拒绝权限后再次请求的回调接口
-callback                : 设置回调
-theme                   : 设置主题
-request                 : 开始请求
-```
-
-* ### 手机相关 -> [PhoneUtils.java][phone.java] -> [Demo][phone.demo]
-```
-isPhone            : 判断设备是否是手机
-getDeviceId        : 获取设备码
-getSerial          : 获取序列号
-getIMEI            : 获取 IMEI 码
-getMEID            : 获取 MEID 码
-getIMSI            : 获取 IMSI 码
-getPhoneType       : 获取移动终端类型
-isSimCardReady     : 判断 sim 卡是否准备好
-getSimOperatorName : 获取 Sim 卡运营商名称
-getSimOperatorByMnc: 获取 Sim 卡运营商名称
-getPhoneStatus     : 获取手机状态信息
-dial               : 跳至拨号界面
-call               : 拨打 phoneNumber
-sendSms            : 跳至发送短信界面
-sendSmsSilent      : 发送短信
-```
-
-* ### 进程相关 -> [ProcessUtils.java][process.java] -> [Demo][process.demo]
-```
-getForegroundProcessName  : 获取前台线程包名
-killAllBackgroundProcesses: 杀死所有的后台服务进程
-killBackgroundProcesses   : 杀死后台服务进程
-isMainProcess             : 判断是否运行在主进程
-getCurrentProcessName     : 获取当前进程名称
-```
-
-* ### 反射相关 -> [ReflectUtils.java][reflect.java] -> [Test][reflect.test]
-```
-reflect    : 设置要反射的类
-newInstance: 实例化反射对象
-field      : 设置反射的字段
-method     : 设置反射的方法
-get        : 获取反射想要获取的
-```
-
-* ### 正则相关 -> [RegexUtils.java][regex.java] -> [Test][regex.test]
-```
-isMobileSimple : 简单验证手机号
-isMobileExact  : 精确验证手机号
-isTel          : 验证电话号码
-isIDCard15     : 验证身份证号码 15 位
-isIDCard18     : 简单验证身份证号码 18 位
-isIDCard18Exact: 精确验证身份证号码 18 位
-isEmail        : 验证邮箱
-isURL          : 验证 URL
-isZh           : 验证汉字
-isUsername     : 验证用户名
-isDate         : 验证 yyyy-MM-dd 格式的日期校验，已考虑平闰年
-isIP           : 验证 IP 地址
-isMatch        : 判断是否匹配正则
-getMatches     : 获取正则匹配的部分
-getSplits      : 获取正则匹配分组
-getReplaceFirst: 替换正则匹配的第一部分
-getReplaceAll  : 替换所有正则匹配的部分
-```
-
-* ### 资源相关 -> [ResourceUtils.java][resource.java] -> [Demo][resource.demo]
-```
-copyFileFromAssets: 从 assets 中拷贝文件
-readAssets2String : 从 assets 中读取字符串
-readAssets2List   : 从 assets 中按行读取字符串
-copyFileFromRaw   : 从 raw 中拷贝文件
-readRaw2String    : 从 raw 中读取字符串
-readRaw2List      : 从 raw 中按行读取字符串
-```
-
-* ### 屏幕相关 -> [ScreenUtils.java][screen.java] -> [Demo][screen.demo]
-```
-getScreenWidth     : 获取屏幕的宽度（单位：px）
-getScreenHeight    : 获取屏幕的高度（单位：px）
-getScreenDensity   : 获取屏幕密度
-getScreenDensityDpi: 获取屏幕密度 DPI
-setFullScreen      : 设置屏幕为全屏
-setNonFullScreen   : 设置屏幕为非全屏
-toggleFullScreen   : 切换屏幕为全屏与否状态
-isFullScreen       : 判断屏幕是否为全屏
-setLandscape       : 设置屏幕为横屏
-setPortrait        : 设置屏幕为竖屏
-isLandscape        : 判断是否横屏
-isPortrait         : 判断是否竖屏
-getScreenRotation  : 获取屏幕旋转角度
-screenShot         : 截屏
-isScreenLock       : 判断是否锁屏
-setSleepDuration   : 设置进入休眠时长
-getSleepDuration   : 获取进入休眠时长
-isTablet           : 判断是否是平板
-```
-
-* ### SD 卡相关 -> [SDCardUtils.java][sdcard.java] -> [Demo][sdcard.demo]
-```
-isSDCardEnableByEnvironment: 根据 Environment 判断 SD 卡是否可用
-getSDCardPathByEnvironment : 根据 Environment 获取 SD 卡路径
-isSDCardEnable             : 判断 SD 卡是否可用
-getSDCardPaths             : 获取 SD 卡路径
-```
-
-* ### 服务相关 -> [ServiceUtils.java][service.java]
-```
-getAllRunningServices: 获取所有运行的服务
-startService         : 启动服务
-stopService          : 停止服务
-bindService          : 绑定服务
-unbindService        : 解绑服务
-isServiceRunning     : 判断服务是否运行
-```
-
-* ### Shell 相关 -> [ShellUtils.java][shell.java]
-```
-execCmd: 是否是在 root 下执行命令
-```
-
-* ### 尺寸相关 -> [SizeUtils.java][size.java]
-```
-dp2px, px2dp     : dp 与 px 转换
-sp2px, px2sp     : sp 与 px 转换
-applyDimension   : 各种单位转换
-forceGetViewSize : 在 onCreate 中获取视图的尺寸
-measureView      : 测量视图尺寸
-getMeasuredWidth : 获取测量视图宽度
-getMeasuredHeight: 获取测量视图高度
-```
-
-* ### Snackbar 相关 -> [SnackbarUtils.java][snackbar.java] -> [Demo][snackbar.demo]
-```
-with           : 设置 snackbar 依赖 view
-setMessage     : 设置消息
-setMessageColor: 设置消息颜色
-setBgColor     : 设置背景色
-setBgResource  : 设置背景资源
-setDuration    : 设置显示时长
-setAction      : 设置行为
-setBottomMargin: 设置底边距
-show           : 显示 snackbar
-showSuccess    : 显示预设成功的 snackbar
-showWarning    : 显示预设警告的 snackbar
-showError      : 显示预设错误的 snackbar
-dismiss        : 消失 snackbar
-getView        : 获取 snackbar 视图
-addView        : 添加 snackbar 视图
-```
-
-* ### SpannableString 相关 -> [SpanUtils.java][span.java] -> [Demo][span.demo]
-```
-setFlag           : 设置标识
-setForegroundColor: 设置前景色
-setBackgroundColor: 设置背景色
-setLineHeight     : 设置行高
-setQuoteColor     : 设置引用线的颜色
-setLeadingMargin  : 设置缩进
-setBullet         : 设置列表标记
-setFontSize       : 设置字体尺寸
-setFontProportion : 设置字体比例
-setFontXProportion: 设置字体横向比例
-setStrikethrough  : 设置删除线
-setUnderline      : 设置下划线
-setSuperscript    : 设置上标
-setSubscript      : 设置下标
-setBold           : 设置粗体
-setItalic         : 设置斜体
-setBoldItalic     : 设置粗斜体
-setFontFamily     : 设置字体系列
-setTypeface       : 设置字体
-setAlign          : 设置对齐
-setClickSpan      : 设置点击事件
-setUrl            : 设置超链接
-setBlur           : 设置模糊
-setShader         : 设置着色器
-setShadow         : 设置阴影
-setSpans          : 设置样式
-append            : 追加样式字符串
-appendLine        : 追加一行样式字符串
-appendImage       : 追加图片
-appendSpace       : 追加空白
-create            : 创建样式字符串
-```
-
-* ### SP 相关 -> [SPUtils.java][sp.java] -> [Demo][sp.demo]
-```
-getInstance        : 获取 SP 实例
-Instance.put       : SP 中写入数据
-Instance.getString : SP 中读取 String
-Instance.getInt    : SP 中读取 int
-Instance.getLong   : SP 中读取 long
-Instance.getFloat  : SP 中读取 float
-Instance.getBoolean: SP 中读取 boolean
-Instance.getAll    : SP 中获取所有键值对
-Instance.contains  : SP 中是否存在该 key
-Instance.remove    : SP 中移除该 key
-Instance.clear     : SP 中清除所有数据
-```
-
-* ### 字符串相关 -> [StringUtils.java][string.java] -> [Test][string.test]
-```
-isEmpty         : 判断字符串是否为 null 或长度为 0
-isTrimEmpty     : 判断字符串是否为 null 或全为空格
-isSpace         : 判断字符串是否为 null 或全为空白字符
-equals          : 判断两字符串是否相等
-equalsIgnoreCase: 判断两字符串忽略大小写是否相等
-null2Length0    : null 转为长度为 0 的字符串
-length          : 返回字符串长度
-upperFirstLetter: 首字母大写
-lowerFirstLetter: 首字母小写
-reverse         : 反转字符串
-toDBC           : 转化为半角字符
-toSBC           : 转化为全角字符
-```
-
-* ### 线程相关 -> [ThreadUtils.java][thread.java] -> [Test][thread.test]
-```
-isMainThread            : 判断当前是否主线程
-getFixedPool            : 获取固定线程池
-getSinglePool           : 获取单线程池
-getCachedPool           : 获取缓冲线程池
-getIoPool               : 获取 IO 线程池
-getCpuPool              : 获取 CPU 线程池
-executeByFixed          : 在固定线程池执行任务
-executeByFixedWithDelay : 在固定线程池延时执行任务
-executeByFixedAtFixRate : 在固定线程池按固定频率执行任务
-executeBySingle         : 在单线程池执行任务
-executeBySingleWithDelay: 在单线程池延时执行任务
-executeBySingleAtFixRate: 在单线程池按固定频率执行任务
-executeByCached         : 在缓冲线程池执行任务
-executeByCachedWithDelay: 在缓冲线程池延时执行任务
-executeByCachedAtFixRate: 在缓冲线程池按固定频率执行任务
-executeByIo             : 在 IO 线程池执行任务
-executeByIoWithDelay    : 在 IO 线程池延时执行任务
-executeByIoAtFixRate    : 在 IO 线程池按固定频率执行任务
-executeByCpu            : 在 CPU 线程池执行任务
-executeByCpuWithDelay   : 在 CPU 线程池延时执行任务
-executeByCpuAtFixRate   : 在 CPU 线程池按固定频率执行任务
-executeByCustom         : 在自定义线程池执行任务
-executeByCustomWithDelay: 在自定义线程池延时执行任务
-executeByCustomAtFixRate: 在自定义线程池按固定频率执行任务
-cancel                  : 取消任务的执行
-```
-
-* ### 时间相关 -> [TimeUtils.java][time.java] -> [Test][time.test]
-```
-millis2String           : 将时间戳转为时间字符串
-string2Millis           : 将时间字符串转为时间戳
-string2Date             : 将时间字符串转为 Date 类型
-date2String             : 将 Date 类型转为时间字符串
-date2Millis             : 将 Date 类型转为时间戳
-millis2Date             : 将时间戳转为 Date 类型
-getTimeSpan             : 获取两个时间差（单位：unit）
-getFitTimeSpan          : 获取合适型两个时间差
-getNowMills             : 获取当前毫秒时间戳
-getNowString            : 获取当前时间字符串
-getNowDate              : 获取当前 Date
-getTimeSpanByNow        : 获取与当前时间的差（单位：unit）
-getFitTimeSpanByNow     : 获取合适型与当前时间的差
-getFriendlyTimeSpanByNow: 获取友好型与当前时间的差
-getMillis               : 获取与给定时间等于时间差的时间戳
-getString               : 获取与给定时间等于时间差的时间字符串
-getDate                 : 获取与给定时间等于时间差的 Date
-getMillisByNow          : 获取与当前时间等于时间差的时间戳
-getStringByNow          : 获取与当前时间等于时间差的时间字符串
-getDateByNow            : 获取与当前时间等于时间差的 Date
-isToday                 : 判断是否今天
-isLeapYear              : 判断是否闰年
-getChineseWeek          : 获取中式星期
-getUSWeek               : 获取美式式星期
-getValueByCalendarField : 根据日历字段获取值
-getChineseZodiac        : 获取生肖
-getZodiac               : 获取星座
-```
-
-* ### 吐司相关 -> [ToastUtils.java][toast.java] -> [Demo][toast.demo]
-```
-setGravity     : 设置吐司位置
-setBgColor     : 设置背景颜色
-setBgResource  : 设置背景资源
-setMsgColor    : 设置消息颜色
-setMsgTextSize : 设置消息字体大小
-showShort      : 显示短时吐司
-showLong       : 显示长时吐司
-showCustomShort: 显示短时自定义吐司
-showCustomLong : 显示长时自定义吐司
-cancel         : 取消吐司显示
-```
-
-* ### URI 相关 -> [UriUtils.java][uri.java]
-```
-file2Uri: file 转 uri
-uri2File: uri 转 file
-```
-
-* ### 压缩相关 -> [ZipUtils.java][zip.java] -> [Test][zip.test]
-```
-zipFiles          : 批量压缩文件
-zipFile           : 压缩文件
-unzipFile         : 解压文件
-unzipFileByKeyword: 解压带有关键字的文件
-getFilesPath      : 获取压缩文件中的文件路径链表
-getComments       : 获取压缩文件中的注释链表
-```
-
-
-
-[activity.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
-[activity.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/ActivityActivity.java
-
-[adaptScreen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
-[adaptScreen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/AdaptScreenActivity.java
-
-[app.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java
-[app.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/app/AppActivity.java
-
-[bar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java
-[bar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarActivity.java
-
-[cacheDisk.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
-[cacheDisk.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
-
-[cacheDouble.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
-[cacheDouble.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
-
-[cacheMemory.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
-[cacheMemory.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
-
-[clean.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java
-[clean.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/clean/CleanActivity.java
-
-[close.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
-
-[convert.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
-[convert.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
-
-[crash.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java
-
-[device.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
-[device.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/device/DeviceActivity.java
-
-[empty.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/EmptyUtils.java
-[empty.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/EmptyUtilsTest.java
-
-[encode.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
-[encode.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
-
-[encrypt.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
-[encrypt.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
-
-[fileIo.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/fileIOUtils.java
-[fileIo.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/fileIOUtilsTest.java
-
-[file.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java
-[file.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
-
-[fragment.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
-[fragment.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/FragmentActivity.java
-
-[image.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java
-[image.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageActivity.java
-
-[intent.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java
-
-[keyboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
-[keyboard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/keyboard/KeyboardActivity.java
-
-[log.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java
-[log.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/log/LogActivity.java
-
-[metaData.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
-[metaData.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/metaData/MetaDataActivity.java
-
-[network.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
-[network.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/network/NetworkActivity.java
-
-[object.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
-[object.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
-
-[path.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java
-[path.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/path/PathActivity.java
-
-[permission.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
-[permission.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/permission/PermissionActivity.java
-
-[phone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
-[phone.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/phone/PhoneActivity.java
-
-[process.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
-[process.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/process/ProcessActivity.java
-
-[reflect.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
-[reflect.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
-
-[regex.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
-[regex.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
-
-[resource.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
-[resource.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/resource/ResourceActivity.java
-
-[screen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
-[screen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/screen/ScreenActivity.java
-
-[sdcard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
-[sdcard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/sdcard/SDCardActivity.java
-
-[service.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
-
-[shell.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
-
-[size.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
-
-[snackbar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
-[snackbar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/snackbar/SnackbarActivity.java
-
-[span.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
-[span.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/span/SpanActivity.java
-
-[sp.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
-[sp.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/sp/SPActivity.java
-
-[string.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
-[string.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
-
-[thread.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
-[thread.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
-
-[time.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
-[time.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
-
-[toast.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java
-[toast.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/ToastActivity.java
-
-[uri.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java
-
-[zip.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java
-[zip.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
diff --git a/utilcode/README-STATIC-BUS.md b/utilcode/README-STATIC-BUS.md
deleted file mode 100644
index 0cbd5bb35e..0000000000
--- a/utilcode/README-STATIC-BUS.md
+++ /dev/null
@@ -1,77 +0,0 @@
-![logo][logo]
-
-## 关于
-
-组件化开发会涉及到模块与模块之间相互调用，而各模块之间又是解偶的，所以就产生了很多路由方案，或者是把接口下沉到 `base` 组件中，但在 **[StaticBus][bus]** 看来，它们都略显复杂，**[StaticBus][bus]** 只需调用一个静态函数便可自由穿梭于各个模块，就像一辆巴士，由于是基于静态函数来实现，所以称她为 **[StaticBus][bus]**。
-
-
-## 基本使用
-
-在项目根目录的 `build.gradle` 中添加 `bus` 插件：
-
-```groovy
-buildscript {
-    dependencies {
-        ...
-        classpath 'com.blankj:bus-gradle-plugin:1.3'
-    }
-}
-```
-
-然后在 application 模块中使用该插件：
-
-```groovy
-apply plugin: "com.blankj.bus"
-```
-
-给 base 模块添加 bus 依赖：
-
-```groovy
-api "com.blankj:bus:1.0"
-```
-
-或者 [AndroidUtilCode](https://github.com/Blankj/AndroidUtilCode) 依赖：
-
-```groovy
-api "com.blankj:utilcode:1.21.0+"
-```
-
-
-比如 module0 中存在的 `Module0Activity.java`，我们通常都是在它内部写一个 `start` 函数来启动它，现在我们给它添加 `@BusUtils.Subscribe` 注解，并给注解的 `name` 赋唯一值，要注意，函数务必要 `public static` 哦：
-
-```java
-public class Module0Activity extends Activity {
-
-    @BusUtils.Subscribe(name = "startModule0")
-    public static boolean start(Context context, String name, int age) {
-        Intent starter = new Intent(context, Module0Activity.class);
-        starter.putExtra("name", name);
-        starter.putExtra("age", age);
-        context.startActivity(starter);
-        return true;
-    }
-}
-```
-
-在其他模块通过 `BusUtils.post("startModule0", Context, String, int)` 即可访问到它，一定要注意 `name` 之后的参数顺序和个数一定要和前面声明的函数相一致，其返回值也就是前面函数的返回值：
-
-```java
-boolean result = BusUtils.post("startModule0", context, "blankj", 18);
-```
-
-点击编译之后会在该 application 模块中生成 `__bus__.json` 文件
-
-```txt
-{
-  "startModule0": "boolean com.blankj.module0.Module0Activity.start(android.content.Context,java.lang.String,int)"
-}
-```
-
-
-## 高级使用
-
-
-
-
-[logo]: https://raw.githubusercontent.com/Blankj/AndroidUtilCode/master/art/logo_static_bus.png
-[bus]: https://github.com/Blankj/AndroidUtilCode/utilcode/README-STATIC-BUS.md
\ No newline at end of file
diff --git a/utilcode/README.md b/utilcode/README.md
deleted file mode 100644
index bd3da0a9ef..0000000000
--- a/utilcode/README.md
+++ /dev/null
@@ -1,936 +0,0 @@
-## Download
-
-Gradle:
-```groovy
-implementation 'com.blankj:utilcode:1.21.2'
-```
-
-
-## APIs
-
-* ### About Activity -> [ActivityUtils.java][activity.java] -> [Demo][activity.demo]
-```
-isActivityExists
-startActivity
-startActivityForResult
-startActivities
-startHomeActivity
-getActivityList
-getLauncherActivity
-getTopActivity
-isActivityExistsInStack
-finishActivity
-finishToActivity
-finishOtherActivities
-finishAllActivities
-finishAllActivitiesExceptNewest
-```
-
-* ### About AdaptScreen -> [AdaptScreenUtils.java][adaptScreen.java] -> [Demo][adaptScreen.demo]
-```
-adaptWidth
-adaptHeight
-closeAdapt
-pt2Px
-px2Pt
-```
-
-* ### About App -> [AppUtils.java][app.java] -> [Demo][app.demo]
-```
-registerAppStatusChangedListener
-unregisterAppStatusChangedListener
-installApp
-installAppSilent
-uninstallApp
-uninstallAppSilent
-isAppInstalled
-isAppRoot
-isAppDebug
-isAppSystem
-isAppForeground
-launchApp
-relaunchApp
-launchAppDetailsSettings
-exitApp
-getAppIcon
-getAppPackageName
-getAppName
-getAppPath
-getAppVersionName
-getAppVersionCode
-getAppSignature
-getAppSignatureSHA1
-getAppSignatureSHA256
-getAppSignatureMD5
-getAppInfo
-getAppsInfo
-```
-
-* ### About Bar -> [BarUtils.java][bar.java] -> [Demo][bar.demo]
-```
-getStatusBarHeight
-setStatusBarVisibility
-isStatusBarVisible
-setStatusBarLightMode
-addMarginTopEqualStatusBarHeight
-subtractMarginTopEqualStatusBarHeight
-setStatusBarColor
-setStatusBarAlpha
-setStatusBarColor4Drawer
-setStatusBarAlpha4Drawer
-getActionBarHeight
-setNotificationBarVisibility
-getNavBarHeight
-setNavBarVisibility
-isNavBarVisible
-setNavBarColor
-getNavBarColor
-isSupportNavBar
-```
-
-* ### About CacheDisk -> [CacheDiskUtils.java][cacheDisk.java] -> [Test][cacheDisk.test]
-```
-getInstance
-Instance.put
-Instance.getBytes
-Instance.getString
-Instance.getJSONObject
-Instance.getJSONArray
-Instance.getBitmap
-Instance.getDrawable
-Instance.getParcelable
-Instance.getSerializable
-Instance.getCacheSize
-Instance.getCacheCount
-Instance.remove
-Instance.clear
-```
-
-* ### About CacheDouble -> [CacheDoubleUtils.java][cacheDouble.java] -> [Test][cacheDouble.test]
-```
-getInstance
-Instance.put
-Instance.getBytes
-Instance.getString
-Instance.getJSONObject
-Instance.getJSONArray
-Instance.getBitmap
-Instance.getDrawable
-Instance.getParcelable
-Instance.getSerializable
-Instance.getCacheDiskSize
-Instance.getCacheDiskCount
-Instance.getCacheMemoryCount
-Instance.remove
-Instance.clear
-```
-
-* ### About CacheMemory -> [CacheMemoryUtils.java][cacheMemory.java] -> [Test][cacheMemory.test]
-```
-getInstance
-Instance.put
-Instance.get
-Instance.getCacheCount
-Instance.remove
-Instance.clear
-```
-
-* ### About Clean -> [CleanUtils.java][clean.java] -> [Demo][clean.demo]
-```
-cleanInternalCache
-cleanInternalFiles
-cleanInternalDbs
-cleanInternalDbByName
-cleanInternalSp
-cleanExternalCache
-cleanCustomDir
-```
-
-* ### About Close -> [CloseUtils.java][close.java]
-```
-closeIO
-closeIOQuietly
-```
-
-* ### About Convert -> [ConvertUtils.java][convert.java] -> [Test][convert.test]
-```
-bytes2Bits, bits2Bytes
-bytes2Chars, chars2Bytes
-bytes2HexString, hexString2Bytes
-memorySize2Byte, byte2MemorySize
-byte2FitMemorySize
-timeSpan2Millis, millis2TimeSpan
-millis2FitTimeSpan
-input2OutputStream, output2InputStream
-inputStream2Bytes, bytes2InputStream
-outputStream2Bytes, bytes2OutputStream
-inputStream2String, string2InputStream
-outputStream2String, string2OutputStream
-bitmap2Bytes, bytes2Bitmap
-drawable2Bitmap, bitmap2Drawable
-drawable2Bytes, bytes2Drawable
-view2Bitmap
-dp2px, px2dp
-sp2px, px2sp
-```
-
-* ### About Crash -> [CrashUtils.java][crash.java]
-```
-init
-```
-
-* ### About Device -> [DeviceUtils.java][device.java] -> [Demo][device.demo]
-```
-isDeviceRooted
-isAdbEnabled
-getSDKVersionName
-getSDKVersionCode
-getAndroidID
-getMacAddress
-getManufacturer
-getModel
-getABIs
-shutdown
-reboot
-reboot2Recovery
-reboot2Bootloader
-```
-
-* ### About Encode -> [EncodeUtils.java][encode.java] -> [Test][encode.test]
-```
-urlEncode
-urlDecode
-base64Encode
-base64Encode2String
-base64Decode
-htmlEncode
-htmlDecode
-```
-
-* ### About Encrypt -> [EncryptUtils.java][encrypt.java] -> [Test][encrypt.test]
-```
-encryptMD2, encryptMD2ToString
-encryptMD5, encryptMD5ToString
-encryptMD5File, encryptMD5File2String
-encryptSHA1, encryptSHA1ToString
-encryptSHA224, encryptSHA224ToString
-encryptSHA256, encryptSHA256ToString
-encryptSHA384, encryptSHA384ToString
-encryptSHA512, encryptSHA512ToString
-encryptHmacMD5, encryptHmacMD5ToString
-encryptHmacSHA1, encryptHmacSHA1ToString
-encryptHmacSHA224, encryptHmacSHA224ToString
-encryptHmacSHA256, encryptHmacSHA256ToString
-encryptHmacSHA384, encryptHmacSHA384ToString
-encryptHmacSHA512, encryptHmacSHA512ToString
-encryptDES, encryptDES2HexString, encryptDES2Base64
-decryptDES, decryptHexStringDES, decryptBase64DES
-encrypt3DES, encrypt3DES2HexString, encrypt3DES2Base64
-decrypt3DES, decryptHexString3DES, decryptBase64_3DES
-encryptAES, encryptAES2HexString, encryptAES2Base64
-decryptAES, decryptHexStringAES, decryptBase64AES
-encryptRSA, encryptRSA2HexString, encryptRSA2Base64
-decryptRSA, decryptHexStringRSA, decryptBase64RSA
-```
-
-* ### About fileIO -> [fileIOUtils.java][fileIo.java] -> [Test][fileIo.test]
-```
-writeFileFromIS
-writeFileFromBytesByStream
-writeFileFromBytesByChannel
-writeFileFromBytesByMap
-writeFileFromString
-readFile2List
-readFile2String
-readFile2BytesByStream
-readFile2BytesByChannel
-readFile2BytesByMap
-setBufferSize
-```
-
-* ### About File -> [FileUtils.java][file.java] -> [Test][file.test]
-```
-getFileByPath
-isFileExists
-rename
-isDir
-isFile
-createOrExistsDir
-createOrExistsFile
-createFileByDeleteOldFile
-copyDir
-copyFile
-moveDir
-moveFile
-delete
-deleteDir
-deleteFile
-deleteAllInDir
-deleteFilesInDir
-deleteFilesInDirWithFilter
-listFilesInDir
-listFilesInDirWithFilter
-getFileLastModified
-getFileCharsetSimple
-getFileLines
-getDirSize
-getFileSize
-getDirLength
-getFileLength
-getFileMD5
-getFileMD5ToString
-getDirName
-getFileName
-getFileNameNoExtension
-getFileExtension
-```
-
-* ### About Fragment -> [FragmentUtils.java][fragment.java] -> [Demo][fragment.demo]
-```
-add
-show
-hide
-showHide
-replace
-pop
-popTo
-popAll
-remove
-removeTo
-removeAll
-getTop
-getTopInStack
-getTopShow
-getTopShowInStack
-getFragments
-getFragmentsInStack
-getAllFragments
-getAllFragmentsInStack
-findFragment
-dispatchBackPress
-setBackgroundColor
-setBackgroundResource
-setBackground
-```
-
-* ### About Image -> [ImageUtils.java][image.java] -> [Demo][image.demo]
-```
-bitmap2Bytes, bytes2Bitmap
-drawable2Bitmap, bitmap2Drawable
-drawable2Bytes, bytes2Drawable
-view2Bitmap
-getBitmap
-scale
-clip
-skew
-rotate
-getRotateDegree
-toRound
-toRoundCorner
-addCornerBorder
-addCircleBorder
-addReflection
-addTextWatermark
-addImageWatermark
-toAlpha
-toGray
-fastBlur
-renderScriptBlur
-stackBlur
-save
-isImage
-getImageType
-compressByScale
-compressByQuality
-compressBySampleSize
-```
-
-* ### About Intent -> [IntentUtils.java][intent.java]
-```
-isIntentAvailable
-getInstallAppIntent
-getUninstallAppIntent
-getLaunchAppIntent
-getLaunchAppDetailsSettingsIntent
-getShareTextIntent
-getShareImageIntent
-getComponentIntent
-getShutdownIntent
-getCaptureIntent
-```
-
-* ### About Keyboard -> [KeyboardUtils.java][keyboard.java] -> [Demo][keyboard.demo]
-```
-showSoftInput
-showSoftInputUsingToggle
-hideSoftInput
-hideSoftInputUsingToggle
-toggleSoftInput
-isSoftInputVisible
-registerSoftInputChangedListener
-unregisterSoftInputChangedListener
-fixAndroidBug5497
-fixSoftInputLeaks
-clickBlankArea2HideSoftInput
-```
-
-* ### About Log -> [LogUtils.java][log.java] -> [Demo][log.demo]
-```
-getConfig
-Config.setLogSwitch
-Config.setConsoleSwitch
-Config.setGlobalTag
-Config.setLogHeadSwitch
-Config.setLog2FileSwitch
-Config.setDir
-Config.setFilePrefix
-Config.setBorderSwitch
-Config.setSingleTagSwitch
-Config.setConsoleFilter
-Config.setFileFilter
-Config.setStackDeep
-Config.setStackOffset
-Config.setSaveDays
-Config.addFormatter
-log
-v
-vTag
-d
-dTag
-i
-iTag
-w
-wTag
-e
-eTag
-a
-aTag
-file
-json
-xml
-```
-
-* ### About MetaData -> [MetaDataUtils.java][metaData.java] -> [Demo][metaData.demo]
-```
-getMetaDataInApp
-getMetaDataInActivity
-getMetaDataInService
-getMetaDataInReceiver
-```
-
-* ### About Network -> [NetworkUtils.java][network.java] -> [Demo][network.demo]
-```
-openWirelessSettings
-isConnected
-isAvailableByPing
-getMobileDataEnabled
-setMobileDataEnabled
-isMobileData
-is4G
-getWifiEnabled
-setWifiEnabled
-isWifiConnected
-isWifiAvailable
-getNetworkOperatorName
-getNetworkType
-getIPAddress
-getDomainAddress
-getIpAddressByWifi
-getGatewayByWifi
-getNetMaskByWifi
-getServerAddressByWifi
-```
-
-* ### About Object -> [ObjectUtils.java][object.java] -> [Test][object.test]
-```
-isEmpty
-isNotEmpty
-equals
-requireNonNull
-getOrDefault
-hashCode
-```
-
-* ### About Path -> [PathUtils.java][path.java] -> [Demo][path.demo]
-```
-getRootPath
-getDataPath
-getDownloadCachePath
-getInternalAppDataPath
-getInternalAppCodeCacheDir
-getInternalAppCachePath
-getInternalAppDbsPath
-getInternalAppDbPath
-getInternalAppFilesPath
-getInternalAppSpPath
-getInternalAppNoBackupFilesPath
-getExternalStoragePath
-getExternalMusicPath
-getExternalPodcastsPath
-getExternalRingtonesPath
-getExternalAlarmsPath
-getExternalNotificationsPath
-getExternalPicturesPath
-getExternalMoviesPath
-getExternalDownloadsPath
-getExternalDcimPath
-getExternalDocumentsPath
-getExternalAppDataPath
-getExternalAppCachePath
-getExternalAppFilesPath
-getExternalAppMusicPath
-getExternalAppPodcastsPath
-getExternalAppRingtonesPath
-getExternalAppAlarmsPath
-getExternalAppNotificationsPath
-getExternalAppPicturesPath
-getExternalAppMoviesPath
-getExternalAppDownloadPath
-getExternalAppDcimPath
-getExternalAppDocumentsPath
-getExternalAppObbPath
-```
-
-* ### About Permission -> [PermissionUtils.java][permission.java] -> [Demo][permission.demo]
-```
-getPermissions
-isGranted
-launchAppDetailsSettings
-permission
-rationale
-callback
-theme
-request
-```
-
-* ### About Phone -> [PhoneUtils.java][phone.java] -> [Demo][phone.demo]
-```
-isPhone
-getDeviceId
-getSerial
-getIMEI
-getMEID
-getIMSI
-getPhoneType
-isSimCardReady
-getSimOperatorName
-getSimOperatorByMnc
-getPhoneStatus
-dial
-call
-sendSms
-sendSmsSilent
-```
-
-* ### About Process -> [ProcessUtils.java][process.java] -> [Demo][process.demo]
-```
-getForegroundProcessName
-killAllBackgroundProcesses
-killBackgroundProcesses
-isMainProcess
-getCurrentProcessName
-```
-
-* ### About Reflect -> [ReflectUtils.java][reflect.java] -> [Test][reflect.test]
-```
-reflect
-newInstance
-field
-method
-get
-```
-
-* ### About Regex -> [RegexUtils.java][regex.java] -> [Test][regex.test]
-```
-isMobileSimple
-isMobileExact
-isTel
-isIDCard15
-isIDCard18
-isIDCard18Exact
-isEmail
-isURL
-isZh
-isUsername
-isDate
-isIP
-isMatch
-getMatches
-getSplits
-getReplaceFirst
-getReplaceAll
-```
-
-* ### About Resource -> [ResourceUtils.java][resource.java] -> [Demo][resource.demo]
-```
-copyFileFromAssets
-readAssets2String
-readAssets2List
-copyFileFromRaw
-readRaw2String
-readRaw2List
-```
-
-* ### About Screen -> [ScreenUtils.java][screen.java] -> [Demo][screen.demo]
-```
-getScreenWidth
-getScreenHeight
-getScreenDensity
-getScreenDensityDpi
-setFullScreen
-setNonFullScreen
-toggleFullScreen
-isFullScreen
-setLandscape
-setPortrait
-isLandscape
-isPortrait
-getScreenRotation
-screenShot
-isScreenLock
-setSleepDuration
-getSleepDuration
-isTablet
-```
-
-* ### About SDCard -> [SDCardUtils.java][sdcard.java] -> [Demo][sdcard.demo]
-```
-isSDCardEnableByEnvironment
-getSDCardPathByEnvironment
-isSDCardEnable
-getSDCardPaths
-```
-
-* ### About Service -> [ServiceUtils.java][service.java]
-```
-getAllRunningServices
-startService
-stopService
-bindService
-unbindService
-isServiceRunning
-```
-
-* ### About Shell -> [ShellUtils.java][shell.java]
-```
-execCmd
-```
-
-* ### About Size -> [SizeUtils.java][size.java]
-```
-dp2px, px2dp
-sp2px, px2sp
-applyDimension
-forceGetViewSize
-measureView
-getMeasuredWidth
-getMeasuredHeight
-```
-
-* ### About Snackbar -> [SnackbarUtils.java][snackbar.java] -> [Demo][snackbar.demo]
-```
-with
-setMessage
-setMessageColor
-setBgColor
-setBgResource
-setDuration
-setAction
-setBottomMargin
-show
-showSuccess
-showWarning
-showError
-dismiss
-getView
-addView
-```
-
-* ### About Span -> [SpanUtils.java][span.java] -> [Demo][span.demo]
-```
-setFlag
-setForegroundColor
-setBackgroundColor
-setLineHeight
-setQuoteColor
-setLeadingMargin
-setBullet
-setFontSize
-setFontProportion
-setFontXProportion
-setStrikethrough
-setUnderline
-setSuperscript
-setSubscript
-setBold
-setItalic
-setBoldItalic
-setFontFamily
-setTypeface
-setAlign
-setClickSpan
-setUrl
-setBlur
-setShader
-setShadow
-setSpans
-append
-appendLine
-appendImage
-appendSpace
-create
-```
-
-* ### About SP -> [SPUtils.java][sp.java] -> [Demo][sp.demo]
-```
-getInstance
-Instance.put
-Instance.getString
-Instance.getInt
-Instance.getLong
-Instance.getFloat
-Instance.getBoolean
-Instance.getAll
-Instance.contains
-Instance.remove
-Instance.clear
-```
-
-* ### About String -> [StringUtils.java][string.java] -> [Test][string.test]
-```
-isEmpty
-isTrimEmpty
-isSpace
-equals
-equalsIgnoreCase
-null2Length0
-length
-upperFirstLetter
-lowerFirstLetter
-reverse
-toDBC
-toSBC
-```
-
-* ### About Thread -> [ThreadUtils.java][thread.java] -> [Test][thread.test]
-```
-isMainThread
-getFixedPool
-getSinglePool
-getCachedPool
-getIoPool
-getCpuPool
-executeByFixed
-executeByFixedWithDelay
-executeByFixedAtFixRate
-executeBySingle
-executeBySingleWithDelay
-executeBySingleAtFixRate
-executeByCached
-executeByCachedWithDelay
-executeByCachedAtFixRate
-executeByIo
-executeByIoWithDelay
-executeByIoAtFixRate
-executeByCpu
-executeByCpuWithDelay
-executeByCpuAtFixRate
-executeByCustom
-executeByCustomWithDelay
-executeByCustomAtFixRate
-cancel
-```
-
-* ### About Time -> [TimeUtils.java][time.java] -> [Test][time.test]
-```
-millis2String
-string2Millis
-string2Date
-date2String
-date2Millis
-millis2Date
-getTimeSpan
-getFitTimeSpan
-getNowMills
-getNowString
-getNowDate
-getTimeSpanByNow
-getFitTimeSpanByNow
-getFriendlyTimeSpanByNow
-getMillis
-getString
-getDate
-getMillisByNow
-getStringByNow
-getDateByNow
-isToday
-isLeapYear
-getChineseWeek
-getUSWeek
-getValueByCalendarField
-getChineseZodiac
-getZodiac
-```
-
-* ### About Toast -> [ToastUtils.java][toast.java] -> [Demo][toast.demo]
-```
-setGravity
-setBgColor
-setBgResource
-setMsgColor
-setMsgTextSize
-showShort
-showLong
-showCustomShort
-showCustomLong
-cancel
-```
-
-* ### About Uri -> [UriUtils.java][uri.java]
-```
-file2Uri
-uri2File
-```
-
-* ### About Zip -> [ZipUtils.java][zip.java] -> [Test][zip.test]
-```
-zipFiles
-zipFile
-unzipFile
-unzipFileByKeyword
-getFilesPath
-getComments
-```
-
-
-
-[activity.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
-[activity.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/activity/ActivityActivity.java
-
-[adaptScreen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
-[adaptScreen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/adaptScreen/AdaptScreenActivity.java
-
-[app.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/AppUtils.java
-[app.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/app/AppActivity.java
-
-[bar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/BarUtils.java
-[bar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/bar/BarActivity.java
-
-[cacheDisk.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
-[cacheDisk.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/CacheDiskUtilsTest.java
-
-[cacheDouble.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CacheDoubleUtils.java
-[cacheDouble.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/CacheDoubleUtilsTest.java
-
-[cacheMemory.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CacheMemoryUtils.java
-[cacheMemory.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/CacheMemoryUtilsTest.java
-
-[clean.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CleanUtils.java
-[clean.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/clean/CleanActivity.java
-
-[close.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CloseUtils.java
-
-[convert.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
-[convert.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ConvertUtilsTest.java
-
-[crash.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/CrashUtils.java
-
-[device.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
-[device.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/device/DeviceActivity.java
-
-[empty.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/EmptyUtils.java
-[empty.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/EmptyUtilsTest.java
-
-[encode.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/EncodeUtils.java
-[encode.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
-
-[encrypt.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/EncryptUtils.java
-[encrypt.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
-
-[fileIo.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/fileIOUtils.java
-[fileIo.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/fileIOUtilsTest.java
-
-[file.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java
-[file.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
-
-[fragment.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/FragmentUtils.java
-[fragment.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/fragment/FragmentActivity.java
-
-[image.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ImageUtils.java
-[image.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/image/ImageActivity.java
-
-[intent.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/IntentUtils.java
-
-[keyboard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
-[keyboard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/keyboard/KeyboardActivity.java
-
-[log.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/LogUtils.java
-[log.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/log/LogActivity.java
-
-[metaData.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/MetaDataUtils.java
-[metaData.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/metaData/MetaDataActivity.java
-
-[network.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
-[network.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/network/NetworkActivity.java
-
-[object.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
-[object.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
-
-[path.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/PathUtils.java
-[path.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/path/PathActivity.java
-
-[permission.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
-[permission.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/permission/PermissionActivity.java
-
-[phone.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
-[phone.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/phone/PhoneActivity.java
-
-[process.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
-[process.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/process/ProcessActivity.java
-
-[reflect.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ReflectUtils.java
-[reflect.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/reflect/ReflectUtilsTest.java
-
-[regex.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/RegexUtils.java
-[regex.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/RegexUtilsTest.java
-
-[resource.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
-[resource.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/resource/ResourceActivity.java
-
-[screen.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
-[screen.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/screen/ScreenActivity.java
-
-[sdcard.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
-[sdcard.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/sdcard/SDCardActivity.java
-
-[service.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
-
-[shell.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ShellUtils.java
-
-[size.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SizeUtils.java
-
-[snackbar.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
-[snackbar.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/snackbar/SnackbarActivity.java
-
-[span.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SpanUtils.java
-[span.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/span/SpanActivity.java
-
-[sp.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/SPUtils.java
-[sp.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/sp/SPActivity.java
-
-[string.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/StringUtils.java
-[string.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/StringUtilsTest.java
-
-[thread.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
-[thread.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ThreadUtilsTest.java
-
-[time.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java
-[time.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/TimeUtilsTest.java
-
-[toast.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ToastUtils.java
-[toast.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/app/src/main/java/com/blankj/androidutilcode/feature/core/toast/ToastActivity.java
-
-[uri.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/UriUtils.java
-
-[zip.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/util/ZipUtils.java
-[zip.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/test/java/com/blankj/utilcode/util/ZipUtilsTest.java
diff --git a/utilcode/lib/.gitignore b/utilcode/lib/.gitignore
deleted file mode 100644
index d231a08c14..0000000000
--- a/utilcode/lib/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-/build
-local.properties
\ No newline at end of file
diff --git a/utilcode/lib/build.gradle b/utilcode/lib/build.gradle
deleted file mode 100644
index efbfb2710a..0000000000
--- a/utilcode/lib/build.gradle
+++ /dev/null
@@ -1,26 +0,0 @@
-plugins {
-    id "com.android.library"
-    id "tech.harmonysoft.oss.traute" version "1.1.8"
-    id "com.github.dcendents.android-maven"
-    id "com.jfrog.bintray"
-    id "readme-core"
-    id "kotlin-android"
-}
-// in config.gradle
-configAndroidDomain project
-
-readme {
-    readmeFile file('README.md')
-    readmeCnFile file('README-CN.md')
-}
-
-apply from: "../../gradle/bintrayUploadAndroid.gradle"
-
-dependencies {
-    compileOnly dep.support.appcompat_v7
-    compileOnly dep.support.design
-
-    testImplementation dep.junit
-    testImplementation dep.robolectric
-    testImplementation dep.support.appcompat_v7
-}
\ No newline at end of file
diff --git a/utilcode/lib/proguard-rules.pro b/utilcode/lib/proguard-rules.pro
deleted file mode 100644
index e3d8e84d12..0000000000
--- a/utilcode/lib/proguard-rules.pro
+++ /dev/null
@@ -1,21 +0,0 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in G:\Android_IDE\ADT\sdk/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-#-keep class com.blankj.utilcode.** { *; }
-#-keepclassmembers class com.blankj.utilcode.** { *; }
--dontwarn com.blankj.utilcode.**
\ No newline at end of file
diff --git a/utilcode/lib/project.properties b/utilcode/lib/project.properties
deleted file mode 100644
index 22ae3b8603..0000000000
--- a/utilcode/lib/project.properties
+++ /dev/null
@@ -1,9 +0,0 @@
-#project
-project.name=UtilCode
-project.groupId=com.blankj
-project.artifactId=utilcode
-project.packaging=aar
-project.siteUrl=https://github.com/Blankj/AndroidUtilCode
-project.gitUrl=https://github.com/Blankj/AndroidUtilCode.git
-#javadoc
-javadoc.name=UtilCode
\ No newline at end of file
diff --git a/utilcode/lib/src/main/AndroidManifest.xml b/utilcode/lib/src/main/AndroidManifest.xml
deleted file mode 100644
index f2d3c8eb80..0000000000
--- a/utilcode/lib/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.utilcode">
-
-    <application>
-        <activity
-            android:name=".util.PermissionUtils$PermissionActivity"
-            android:configChanges="orientation|keyboardHidden|screenSize"
-            android:multiprocess="true"
-            android:theme="@style/ActivityTranslucent"
-            android:windowSoftInputMode="stateHidden|stateAlwaysHidden" />
-
-        <provider
-            android:name=".util.Utils$FileProvider4UtilCode"
-            android:authorities="${applicationId}.utilcode.provider"
-            android:exported="false"
-            android:grantUriPermissions="true"
-            android:multiprocess="true">
-            <meta-data
-                android:name="android.support.FILE_PROVIDER_PATHS"
-                android:resource="@xml/util_code_provider_paths" />
-        </provider>
-    </application>
-</manifest>
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/PermissionConstants.java b/utilcode/lib/src/main/java/com/blankj/utilcode/constant/PermissionConstants.java
deleted file mode 100644
index 9c3746aa61..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/constant/PermissionConstants.java
+++ /dev/null
@@ -1,101 +0,0 @@
-package com.blankj.utilcode.constant;
-
-import android.Manifest;
-import android.Manifest.permission;
-import android.annotation.SuppressLint;
-import android.os.Build;
-import android.support.annotation.StringDef;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.Arrays;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/12/29
- *     desc  : constants of permission
- * </pre>
- */
-@SuppressLint("InlinedApi")
-public final class PermissionConstants {
-
-    public static final String CALENDAR   = Manifest.permission_group.CALENDAR;
-    public static final String CAMERA     = Manifest.permission_group.CAMERA;
-    public static final String CONTACTS   = Manifest.permission_group.CONTACTS;
-    public static final String LOCATION   = Manifest.permission_group.LOCATION;
-    public static final String MICROPHONE = Manifest.permission_group.MICROPHONE;
-    public static final String PHONE      = Manifest.permission_group.PHONE;
-    public static final String SENSORS    = Manifest.permission_group.SENSORS;
-    public static final String SMS        = Manifest.permission_group.SMS;
-    public static final String STORAGE    = Manifest.permission_group.STORAGE;
-
-    private static final String[] GROUP_CALENDAR      = {
-            permission.READ_CALENDAR, permission.WRITE_CALENDAR
-    };
-    private static final String[] GROUP_CAMERA        = {
-            permission.CAMERA
-    };
-    private static final String[] GROUP_CONTACTS      = {
-            permission.READ_CONTACTS, permission.WRITE_CONTACTS, permission.GET_ACCOUNTS
-    };
-    private static final String[] GROUP_LOCATION      = {
-            permission.ACCESS_FINE_LOCATION, permission.ACCESS_COARSE_LOCATION
-    };
-    private static final String[] GROUP_MICROPHONE    = {
-            permission.RECORD_AUDIO
-    };
-    private static final String[] GROUP_PHONE         = {
-            permission.READ_PHONE_STATE, permission.READ_PHONE_NUMBERS, permission.CALL_PHONE,
-            permission.READ_CALL_LOG, permission.WRITE_CALL_LOG, permission.ADD_VOICEMAIL,
-            permission.USE_SIP, permission.PROCESS_OUTGOING_CALLS, permission.ANSWER_PHONE_CALLS
-    };
-    private static final String[] GROUP_PHONE_BELOW_O = Arrays.copyOf(
-            GROUP_PHONE, GROUP_PHONE.length - 1
-    );
-    private static final String[] GROUP_SENSORS       = {
-            permission.BODY_SENSORS
-    };
-    private static final String[] GROUP_SMS           = {
-            permission.SEND_SMS, permission.RECEIVE_SMS, permission.READ_SMS,
-            permission.RECEIVE_WAP_PUSH, permission.RECEIVE_MMS,
-    };
-    private static final String[] GROUP_STORAGE       = {
-            permission.READ_EXTERNAL_STORAGE, permission.WRITE_EXTERNAL_STORAGE
-    };
-
-    @StringDef({CALENDAR, CAMERA, CONTACTS, LOCATION, MICROPHONE, PHONE, SENSORS, SMS, STORAGE,})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface Permission {
-    }
-
-    public static String[] getPermissions(@Permission final String permission) {
-        switch (permission) {
-            case CALENDAR:
-                return GROUP_CALENDAR;
-            case CAMERA:
-                return GROUP_CAMERA;
-            case CONTACTS:
-                return GROUP_CONTACTS;
-            case LOCATION:
-                return GROUP_LOCATION;
-            case MICROPHONE:
-                return GROUP_MICROPHONE;
-            case PHONE:
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    return GROUP_PHONE_BELOW_O;
-                } else {
-                    return GROUP_PHONE;
-                }
-            case SENSORS:
-                return GROUP_SENSORS;
-            case SMS:
-                return GROUP_SMS;
-            case STORAGE:
-                return GROUP_STORAGE;
-        }
-        return new String[]{permission};
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ActivityUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
deleted file mode 100644
index 504fcc158b..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ActivityUtils.java
+++ /dev/null
@@ -1,1602 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.app.Activity;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.AnimRes;
-import android.support.annotation.NonNull;
-import android.support.v4.app.ActivityOptionsCompat;
-import android.support.v4.util.Pair;
-import android.util.Log;
-import android.view.View;
-
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/23
- *     desc  : utils about activity
- * </pre>
- */
-public final class ActivityUtils {
-
-    private ActivityUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return whether the activity exists.
-     *
-     * @param pkg The name of the package.
-     * @param cls The name of the class.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isActivityExists(@NonNull final String pkg,
-                                           @NonNull final String cls) {
-        Intent intent = new Intent();
-        intent.setClassName(pkg, cls);
-        return !(Utils.getApp().getPackageManager().resolveActivity(intent, 0) == null ||
-                intent.resolveActivity(Utils.getApp().getPackageManager()) == null ||
-                Utils.getApp().getPackageManager().queryIntentActivities(intent, 0).size() == 0);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param clz The activity class.
-     */
-    public static void startActivity(@NonNull final Class<? extends Activity> clz) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, null, context.getPackageName(), clz.getName(), null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param clz     The activity class.
-     * @param options Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Class<? extends Activity> clz,
-                                     final Bundle options) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, null, context.getPackageName(), clz.getName(), options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param clz       The activity class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Class<? extends Activity> clz,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, null, context.getPackageName(), clz.getName(),
-                getOptionsBundle(context, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
-            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param clz      The activity class.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz) {
-        startActivity(activity, null, activity.getPackageName(), clz.getName(), null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param clz      The activity class.
-     * @param options  Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     final Bundle options) {
-        startActivity(activity, null, activity.getPackageName(), clz.getName(), options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity       The activity.
-     * @param clz            The activity class.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     final View... sharedElements) {
-        startActivity(activity, null, activity.getPackageName(), clz.getName(),
-                getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity  The activity.
-     * @param clz       The activity class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        startActivity(activity, null, activity.getPackageName(), clz.getName(),
-                getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras The Bundle of extras to add to this intent.
-     * @param clz    The activity class.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Class<? extends Activity> clz) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, extras, context.getPackageName(), clz.getName(), null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras  The Bundle of extras to add to this intent.
-     * @param clz     The activity class.
-     * @param options Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     @NonNull final Bundle options) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, extras, context.getPackageName(), clz.getName(), options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras    The Bundle of extras to add to this intent.
-     * @param clz       The activity class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, extras, context.getPackageName(), clz.getName(),
-                getOptionsBundle(context, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
-            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras   The Bundle of extras to add to this intent.
-     * @param activity The activity.
-     * @param clz      The activity class.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz) {
-        startActivity(activity, extras, activity.getPackageName(), clz.getName(), null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras   The Bundle of extras to add to this intent.
-     * @param activity The activity.
-     * @param clz      The activity class.
-     * @param options  Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     @NonNull final Bundle options) {
-        startActivity(activity, extras, activity.getPackageName(), clz.getName(), options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras         The Bundle of extras to add to this intent.
-     * @param activity       The activity.
-     * @param clz            The activity class.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     final View... sharedElements) {
-        startActivity(activity, extras, activity.getPackageName(), clz.getName(),
-                getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras    The Bundle of extras to add to this intent.
-     * @param activity  The activity.
-     * @param clz       The activity class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final Class<? extends Activity> clz,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        startActivity(activity, extras, activity.getPackageName(), clz.getName(),
-                getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param pkg The name of the package.
-     * @param cls The name of the class.
-     */
-    public static void startActivity(@NonNull final String pkg,
-                                     @NonNull final String cls) {
-        startActivity(Utils.getTopActivityOrApp(), null, pkg, cls, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param pkg     The name of the package.
-     * @param cls     The name of the class.
-     * @param options Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     final Bundle options) {
-        startActivity(Utils.getTopActivityOrApp(), null, pkg, cls, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param pkg       The name of the package.
-     * @param cls       The name of the class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, null, pkg, cls, getOptionsBundle(context, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
-            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param pkg      The name of the package.
-     * @param cls      The name of the class.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls) {
-        startActivity(activity, null, pkg, cls, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param pkg      The name of the package.
-     * @param cls      The name of the class.
-     * @param options  Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     final Bundle options) {
-        startActivity(activity, null, pkg, cls, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity       The activity.
-     * @param pkg            The name of the package.
-     * @param cls            The name of the class.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     final View... sharedElements) {
-        startActivity(activity, null, pkg, cls, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity  The activity.
-     * @param pkg       The name of the package.
-     * @param cls       The name of the class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        startActivity(activity, null, pkg, cls, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras The Bundle of extras to add to this intent.
-     * @param pkg    The name of the package.
-     * @param cls    The name of the class.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls) {
-        startActivity(Utils.getTopActivityOrApp(), extras, pkg, cls, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras  The Bundle of extras to add to this intent.
-     * @param pkg     The name of the package.
-     * @param cls     The name of the class.
-     * @param options Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     final Bundle options) {
-        startActivity(Utils.getTopActivityOrApp(), extras, pkg, cls, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras    The Bundle of extras to add to this intent.
-     * @param pkg       The name of the package.
-     * @param cls       The name of the class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivity(context, extras, pkg, cls, getOptionsBundle(context, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
-            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param extras   The Bundle of extras to add to this intent.
-     * @param pkg      The name of the package.
-     * @param cls      The name of the class.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls) {
-        startActivity(activity, extras, pkg, cls, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras   The Bundle of extras to add to this intent.
-     * @param activity The activity.
-     * @param pkg      The name of the package.
-     * @param cls      The name of the class.
-     * @param options  Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     final Bundle options) {
-        startActivity(activity, extras, pkg, cls, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras         The Bundle of extras to add to this intent.
-     * @param activity       The activity.
-     * @param pkg            The name of the package.
-     * @param cls            The name of the class.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     final View... sharedElements) {
-        startActivity(activity, extras, pkg, cls, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras    The Bundle of extras to add to this intent.
-     * @param pkg       The name of the package.
-     * @param cls       The name of the class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Bundle extras,
-                                     @NonNull final Activity activity,
-                                     @NonNull final String pkg,
-                                     @NonNull final String cls,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        startActivity(activity, extras, pkg, cls, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param intent The description of the activity to start.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean startActivity(@NonNull final Intent intent) {
-        return startActivity(intent, Utils.getTopActivityOrApp(), null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param intent  The description of the activity to start.
-     * @param options Additional options for how the Activity should be started.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean startActivity(@NonNull final Intent intent,
-                                        @NonNull final Bundle options) {
-        return startActivity(intent, Utils.getTopActivityOrApp(), options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param intent    The description of the activity to start.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean startActivity(@NonNull final Intent intent,
-                                        @AnimRes final int enterAnim,
-                                        @AnimRes final int exitAnim) {
-        Context context = Utils.getTopActivityOrApp();
-        boolean isSuccess = startActivity(intent, context, getOptionsBundle(context, enterAnim, exitAnim));
-        if (isSuccess) {
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
-                ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
-            }
-        }
-        return isSuccess;
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param intent   The description of the activity to start.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Intent intent) {
-        startActivity(intent, activity, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity The activity.
-     * @param intent   The description of the activity to start.
-     * @param options  Additional options for how the Activity should be started.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Intent intent,
-                                     final Bundle options) {
-        startActivity(intent, activity, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity       The activity.
-     * @param intent         The description of the activity to start.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Intent intent,
-                                     final View... sharedElements) {
-        startActivity(intent, activity, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity  The activity.
-     * @param intent    The description of the activity to start.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivity(@NonNull final Activity activity,
-                                     @NonNull final Intent intent,
-                                     @AnimRes final int enterAnim,
-                                     @AnimRes final int exitAnim) {
-        startActivity(intent, activity, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity    The activity.
-     * @param clz         The activity class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode) {
-        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
-                requestCode, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity    The activity.
-     * @param clz         The activity class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param options     Additional options for how the Activity should be started.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode,
-                                              final Bundle options) {
-        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
-                requestCode, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity       The activity.
-     * @param clz            The activity class.
-     * @param requestCode    if &gt;= 0, this code will be returned in
-     *                       onActivityResult() when the activity exits.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode,
-                                              final View... sharedElements) {
-        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
-                requestCode, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param activity    The activity.
-     * @param clz         The activity class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param enterAnim   A resource ID of the animation resource to use for the
-     *                    incoming activity.
-     * @param exitAnim    A resource ID of the animation resource to use for the
-     *                    outgoing activity.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode,
-                                              @AnimRes final int enterAnim,
-                                              @AnimRes final int exitAnim) {
-        startActivityForResult(activity, null, activity.getPackageName(), clz.getName(),
-                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras      The Bundle of extras to add to this intent.
-     * @param activity    The activity.
-     * @param clz         The activity class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode) {
-        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
-                requestCode, null);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras      The Bundle of extras to add to this intent.
-     * @param activity    The activity.
-     * @param clz         The activity class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param options     Additional options for how the Activity should be started.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode,
-                                              @NonNull final Bundle options) {
-        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
-                requestCode, options);
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras         The Bundle of extras to add to this intent.
-     * @param activity       The activity.
-     * @param clz            The activity class.
-     * @param requestCode    if &gt;= 0, this code will be returned in
-     *                       onActivityResult() when the activity exits.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode,
-                                              final View... sharedElements) {
-        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
-                requestCode, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity.
-     *
-     * @param extras      The Bundle of extras to add to this intent.
-     * @param activity    The activity.
-     * @param clz         The activity class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param enterAnim   A resource ID of the animation resource to use for the
-     *                    incoming activity.
-     * @param exitAnim    A resource ID of the animation resource to use for the
-     *                    outgoing activity.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final Class<? extends Activity> clz,
-                                              final int requestCode,
-                                              @AnimRes final int enterAnim,
-                                              @AnimRes final int exitAnim) {
-        startActivityForResult(activity, extras, activity.getPackageName(), clz.getName(),
-                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param activity    The activity.
-     * @param extras      The Bundle of extras to add to this intent.
-     * @param pkg         The name of the package.
-     * @param cls         The name of the class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final String pkg,
-                                              @NonNull final String cls,
-                                              final int requestCode) {
-        startActivityForResult(activity, extras, pkg, cls, requestCode, null);
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param extras      The Bundle of extras to add to this intent.
-     * @param activity    The activity.
-     * @param pkg         The name of the package.
-     * @param cls         The name of the class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param options     Additional options for how the Activity should be started.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final String pkg,
-                                              @NonNull final String cls,
-                                              final int requestCode,
-                                              final Bundle options) {
-        startActivityForResult(activity, extras, pkg, cls, requestCode, options);
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param extras         The Bundle of extras to add to this intent.
-     * @param activity       The activity.
-     * @param pkg            The name of the package.
-     * @param cls            The name of the class.
-     * @param requestCode    if &gt;= 0, this code will be returned in
-     *                       onActivityResult() when the activity exits.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final String pkg,
-                                              @NonNull final String cls,
-                                              final int requestCode,
-                                              final View... sharedElements) {
-        startActivityForResult(activity, extras, pkg, cls,
-                requestCode, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param extras      The Bundle of extras to add to this intent.
-     * @param pkg         The name of the package.
-     * @param cls         The name of the class.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param enterAnim   A resource ID of the animation resource to use for the
-     *                    incoming activity.
-     * @param exitAnim    A resource ID of the animation resource to use for the
-     *                    outgoing activity.
-     */
-    public static void startActivityForResult(@NonNull final Bundle extras,
-                                              @NonNull final Activity activity,
-                                              @NonNull final String pkg,
-                                              @NonNull final String cls,
-                                              final int requestCode,
-                                              @AnimRes final int enterAnim,
-                                              @AnimRes final int exitAnim) {
-        startActivityForResult(activity, extras, pkg, cls,
-                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param activity    The activity.
-     * @param intent      The description of the activity to start.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Intent intent,
-                                              final int requestCode) {
-        startActivityForResult(intent, activity, requestCode, null);
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param activity    The activity.
-     * @param intent      The description of the activity to start.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param options     Additional options for how the Activity should be started.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Intent intent,
-                                              final int requestCode,
-                                              final Bundle options) {
-        startActivityForResult(intent, activity, requestCode, options);
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param activity       The activity.
-     * @param intent         The description of the activity to start.
-     * @param requestCode    if &gt;= 0, this code will be returned in
-     *                       onActivityResult() when the activity exits.
-     * @param sharedElements The names of the shared elements to transfer to the called
-     *                       Activity and their associated Views.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Intent intent,
-                                              final int requestCode,
-                                              final View... sharedElements) {
-        startActivityForResult(intent, activity,
-                requestCode, getOptionsBundle(activity, sharedElements));
-    }
-
-    /**
-     * Start the activity for result.
-     *
-     * @param activity    The activity.
-     * @param intent      The description of the activity to start.
-     * @param requestCode if &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     * @param enterAnim   A resource ID of the animation resource to use for the
-     *                    incoming activity.
-     * @param exitAnim    A resource ID of the animation resource to use for the
-     *                    outgoing activity.
-     */
-    public static void startActivityForResult(@NonNull final Activity activity,
-                                              @NonNull final Intent intent,
-                                              final int requestCode,
-                                              @AnimRes final int enterAnim,
-                                              @AnimRes final int exitAnim) {
-        startActivityForResult(intent, activity,
-                requestCode, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start activities.
-     *
-     * @param intents The descriptions of the activities to start.
-     */
-    public static void startActivities(@NonNull final Intent[] intents) {
-        startActivities(intents, Utils.getTopActivityOrApp(), null);
-    }
-
-    /**
-     * Start activities.
-     *
-     * @param intents The descriptions of the activities to start.
-     * @param options Additional options for how the Activity should be started.
-     */
-    public static void startActivities(@NonNull final Intent[] intents,
-                                       final Bundle options) {
-        startActivities(intents, Utils.getTopActivityOrApp(), options);
-    }
-
-    /**
-     * Start activities.
-     *
-     * @param intents   The descriptions of the activities to start.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivities(@NonNull final Intent[] intents,
-                                       @AnimRes final int enterAnim,
-                                       @AnimRes final int exitAnim) {
-        Context context = Utils.getTopActivityOrApp();
-        startActivities(intents, context, getOptionsBundle(context, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN && context instanceof Activity) {
-            ((Activity) context).overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start activities.
-     *
-     * @param activity The activity.
-     * @param intents  The descriptions of the activities to start.
-     */
-    public static void startActivities(@NonNull final Activity activity,
-                                       @NonNull final Intent[] intents) {
-        startActivities(intents, activity, null);
-    }
-
-    /**
-     * Start activities.
-     *
-     * @param activity The activity.
-     * @param intents  The descriptions of the activities to start.
-     * @param options  Additional options for how the Activity should be started.
-     */
-    public static void startActivities(@NonNull final Activity activity,
-                                       @NonNull final Intent[] intents,
-                                       final Bundle options) {
-        startActivities(intents, activity, options);
-    }
-
-    /**
-     * Start activities.
-     *
-     * @param activity  The activity.
-     * @param intents   The descriptions of the activities to start.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void startActivities(@NonNull final Activity activity,
-                                       @NonNull final Intent[] intents,
-                                       @AnimRes final int enterAnim,
-                                       @AnimRes final int exitAnim) {
-        startActivities(intents, activity, getOptionsBundle(activity, enterAnim, exitAnim));
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Start home activity.
-     */
-    public static void startHomeActivity() {
-        Intent homeIntent = new Intent(Intent.ACTION_MAIN);
-        homeIntent.addCategory(Intent.CATEGORY_HOME);
-        startActivity(homeIntent);
-    }
-
-    /**
-     * Return the list of activity.
-     *
-     * @return the list of activity
-     */
-    public static List<Activity> getActivityList() {
-        return Utils.getActivityList();
-    }
-
-    /**
-     * Return the name of launcher activity.
-     *
-     * @return the name of launcher activity
-     */
-    public static String getLauncherActivity() {
-        return getLauncherActivity(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the name of launcher activity.
-     *
-     * @param pkg The name of the package.
-     * @return the name of launcher activity
-     */
-    public static String getLauncherActivity(@NonNull final String pkg) {
-        Intent intent = new Intent(Intent.ACTION_MAIN, null);
-        intent.addCategory(Intent.CATEGORY_LAUNCHER);
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        PackageManager pm = Utils.getApp().getPackageManager();
-        List<ResolveInfo> info = pm.queryIntentActivities(intent, 0);
-        for (ResolveInfo aInfo : info) {
-            if (aInfo.activityInfo.packageName.equals(pkg)) {
-                return aInfo.activityInfo.name;
-            }
-        }
-        return "no " + pkg;
-    }
-
-    /**
-     * Return the top activity in activity's stack.
-     *
-     * @return the top activity in activity's stack
-     */
-    public static Activity getTopActivity() {
-        return Utils.getActivityLifecycle().getTopActivity();
-    }
-
-    /**
-     * Return whether the activity exists in activity's stack.
-     *
-     * @param activity The activity.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isActivityExistsInStack(@NonNull final Activity activity) {
-        List<Activity> activities = Utils.getActivityList();
-        for (Activity aActivity : activities) {
-            if (aActivity.equals(activity)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Return whether the activity exists in activity's stack.
-     *
-     * @param clz The activity class.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isActivityExistsInStack(@NonNull final Class<? extends Activity> clz) {
-        List<Activity> activities = Utils.getActivityList();
-        for (Activity aActivity : activities) {
-            if (aActivity.getClass().equals(clz)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Finish the activity.
-     *
-     * @param activity The activity.
-     */
-    public static void finishActivity(@NonNull final Activity activity) {
-        finishActivity(activity, false);
-    }
-
-    /**
-     * Finish the activity.
-     *
-     * @param activity   The activity.
-     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
-     */
-    public static void finishActivity(@NonNull final Activity activity, final boolean isLoadAnim) {
-        activity.finish();
-        if (!isLoadAnim) {
-            activity.overridePendingTransition(0, 0);
-        }
-    }
-
-    /**
-     * Finish the activity.
-     *
-     * @param activity  The activity.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void finishActivity(@NonNull final Activity activity,
-                                      @AnimRes final int enterAnim,
-                                      @AnimRes final int exitAnim) {
-        activity.finish();
-        activity.overridePendingTransition(enterAnim, exitAnim);
-    }
-
-    /**
-     * Finish the activity.
-     *
-     * @param clz The activity class.
-     */
-    public static void finishActivity(@NonNull final Class<? extends Activity> clz) {
-        finishActivity(clz, false);
-    }
-
-    /**
-     * Finish the activity.
-     *
-     * @param clz        The activity class.
-     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
-     */
-    public static void finishActivity(@NonNull final Class<? extends Activity> clz,
-                                      final boolean isLoadAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (Activity activity : activities) {
-            if (activity.getClass().equals(clz)) {
-                activity.finish();
-                if (!isLoadAnim) {
-                    activity.overridePendingTransition(0, 0);
-                }
-            }
-        }
-    }
-
-    /**
-     * Finish the activity.
-     *
-     * @param clz       The activity class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void finishActivity(@NonNull final Class<? extends Activity> clz,
-                                      @AnimRes final int enterAnim,
-                                      @AnimRes final int exitAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (Activity activity : activities) {
-            if (activity.getClass().equals(clz)) {
-                activity.finish();
-                activity.overridePendingTransition(enterAnim, exitAnim);
-            }
-        }
-    }
-
-    /**
-     * Finish to the activity.
-     *
-     * @param activity      The activity.
-     * @param isIncludeSelf True to include the activity, false otherwise.
-     */
-    public static boolean finishToActivity(@NonNull final Activity activity,
-                                           final boolean isIncludeSelf) {
-        return finishToActivity(activity, isIncludeSelf, false);
-    }
-
-    /**
-     * Finish to the activity.
-     *
-     * @param activity      The activity.
-     * @param isIncludeSelf True to include the activity, false otherwise.
-     * @param isLoadAnim    True to use animation for the outgoing activity, false otherwise.
-     */
-    public static boolean finishToActivity(@NonNull final Activity activity,
-                                           final boolean isIncludeSelf,
-                                           final boolean isLoadAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 1; i >= 0; --i) {
-            Activity aActivity = activities.get(i);
-            if (aActivity.equals(activity)) {
-                if (isIncludeSelf) {
-                    finishActivity(aActivity, isLoadAnim);
-                }
-                return true;
-            }
-            finishActivity(aActivity, isLoadAnim);
-        }
-        return false;
-    }
-
-    /**
-     * Finish to the activity.
-     *
-     * @param activity      The activity.
-     * @param isIncludeSelf True to include the activity, false otherwise.
-     * @param enterAnim     A resource ID of the animation resource to use for the
-     *                      incoming activity.
-     * @param exitAnim      A resource ID of the animation resource to use for the
-     *                      outgoing activity.
-     */
-    public static boolean finishToActivity(@NonNull final Activity activity,
-                                           final boolean isIncludeSelf,
-                                           @AnimRes final int enterAnim,
-                                           @AnimRes final int exitAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 1; i >= 0; --i) {
-            Activity aActivity = activities.get(i);
-            if (aActivity.equals(activity)) {
-                if (isIncludeSelf) {
-                    finishActivity(aActivity, enterAnim, exitAnim);
-                }
-                return true;
-            }
-            finishActivity(aActivity, enterAnim, exitAnim);
-        }
-        return false;
-    }
-
-    /**
-     * Finish to the activity.
-     *
-     * @param clz           The activity class.
-     * @param isIncludeSelf True to include the activity, false otherwise.
-     */
-    public static boolean finishToActivity(@NonNull final Class<? extends Activity> clz,
-                                           final boolean isIncludeSelf) {
-        return finishToActivity(clz, isIncludeSelf, false);
-    }
-
-    /**
-     * Finish to the activity.
-     *
-     * @param clz           The activity class.
-     * @param isIncludeSelf True to include the activity, false otherwise.
-     * @param isLoadAnim    True to use animation for the outgoing activity, false otherwise.
-     */
-    public static boolean finishToActivity(@NonNull final Class<? extends Activity> clz,
-                                           final boolean isIncludeSelf,
-                                           final boolean isLoadAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 1; i >= 0; --i) {
-            Activity aActivity = activities.get(i);
-            if (aActivity.getClass().equals(clz)) {
-                if (isIncludeSelf) {
-                    finishActivity(aActivity, isLoadAnim);
-                }
-                return true;
-            }
-            finishActivity(aActivity, isLoadAnim);
-        }
-        return false;
-    }
-
-    /**
-     * Finish to the activity.
-     *
-     * @param clz           The activity class.
-     * @param isIncludeSelf True to include the activity, false otherwise.
-     * @param enterAnim     A resource ID of the animation resource to use for the
-     *                      incoming activity.
-     * @param exitAnim      A resource ID of the animation resource to use for the
-     *                      outgoing activity.
-     */
-    public static boolean finishToActivity(@NonNull final Class<? extends Activity> clz,
-                                           final boolean isIncludeSelf,
-                                           @AnimRes final int enterAnim,
-                                           @AnimRes final int exitAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 1; i >= 0; --i) {
-            Activity aActivity = activities.get(i);
-            if (aActivity.getClass().equals(clz)) {
-                if (isIncludeSelf) {
-                    finishActivity(aActivity, enterAnim, exitAnim);
-                }
-                return true;
-            }
-            finishActivity(aActivity, enterAnim, exitAnim);
-        }
-        return false;
-    }
-
-    /**
-     * Finish the activities whose type not equals the activity class.
-     *
-     * @param clz The activity class.
-     */
-    public static void finishOtherActivities(@NonNull final Class<? extends Activity> clz) {
-        finishOtherActivities(clz, false);
-    }
-
-
-    /**
-     * Finish the activities whose type not equals the activity class.
-     *
-     * @param clz        The activity class.
-     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
-     */
-    public static void finishOtherActivities(@NonNull final Class<? extends Activity> clz,
-                                             final boolean isLoadAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 1; i >= 0; i--) {
-            Activity activity = activities.get(i);
-            if (!activity.getClass().equals(clz)) {
-                finishActivity(activity, isLoadAnim);
-            }
-        }
-    }
-
-    /**
-     * Finish the activities whose type not equals the activity class.
-     *
-     * @param clz       The activity class.
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void finishOtherActivities(@NonNull final Class<? extends Activity> clz,
-                                             @AnimRes final int enterAnim,
-                                             @AnimRes final int exitAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 1; i >= 0; i--) {
-            Activity activity = activities.get(i);
-            if (!activity.getClass().equals(clz)) {
-                finishActivity(activity, enterAnim, exitAnim);
-            }
-        }
-    }
-
-    /**
-     * Finish all of activities.
-     */
-    public static void finishAllActivities() {
-        finishAllActivities(false);
-    }
-
-    /**
-     * Finish all of activities.
-     *
-     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
-     */
-    public static void finishAllActivities(final boolean isLoadAnim) {
-        List<Activity> activityList = Utils.getActivityList();
-        for (int i = activityList.size() - 1; i >= 0; --i) {// remove from top
-            Activity activity = activityList.get(i);
-            // sActivityList remove the index activity at onActivityDestroyed
-            activity.finish();
-            if (!isLoadAnim) {
-                activity.overridePendingTransition(0, 0);
-            }
-        }
-    }
-
-    /**
-     * Finish all of activities.
-     *
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void finishAllActivities(@AnimRes final int enterAnim,
-                                           @AnimRes final int exitAnim) {
-        List<Activity> activityList = Utils.getActivityList();
-        for (int i = activityList.size() - 1; i >= 0; --i) {// remove from top
-            Activity activity = activityList.get(i);
-            // sActivityList remove the index activity at onActivityDestroyed
-            activity.finish();
-            activity.overridePendingTransition(enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Finish all of activities except the newest activity.
-     */
-    public static void finishAllActivitiesExceptNewest() {
-        finishAllActivitiesExceptNewest(false);
-    }
-
-    /**
-     * Finish all of activities except the newest activity.
-     *
-     * @param isLoadAnim True to use animation for the outgoing activity, false otherwise.
-     */
-    public static void finishAllActivitiesExceptNewest(final boolean isLoadAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 2; i >= 0; i--) {
-            finishActivity(activities.get(i), isLoadAnim);
-        }
-    }
-
-    /**
-     * Finish all of activities except the newest activity.
-     *
-     * @param enterAnim A resource ID of the animation resource to use for the
-     *                  incoming activity.
-     * @param exitAnim  A resource ID of the animation resource to use for the
-     *                  outgoing activity.
-     */
-    public static void finishAllActivitiesExceptNewest(@AnimRes final int enterAnim,
-                                                       @AnimRes final int exitAnim) {
-        List<Activity> activities = Utils.getActivityList();
-        for (int i = activities.size() - 2; i >= 0; i--) {
-            finishActivity(activities.get(i), enterAnim, exitAnim);
-        }
-    }
-
-    /**
-     * Return the icon of activity.
-     *
-     * @param activity The activity.
-     * @return the icon of activity
-     */
-    public static Drawable getActivityIcon(@NonNull final Activity activity) {
-        return getActivityIcon(activity.getComponentName());
-    }
-
-    /**
-     * Return the icon of activity.
-     *
-     * @param clz The activity class.
-     * @return the icon of activity
-     */
-    public static Drawable getActivityIcon(@NonNull final Class<? extends Activity> clz) {
-        return getActivityIcon(new ComponentName(Utils.getApp(), clz));
-    }
-
-    /**
-     * Return the icon of activity.
-     *
-     * @param activityName The name of activity.
-     * @return the icon of activity
-     */
-    public static Drawable getActivityIcon(@NonNull final ComponentName activityName) {
-        PackageManager pm = Utils.getApp().getPackageManager();
-        try {
-            return pm.getActivityIcon(activityName);
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Return the logo of activity.
-     *
-     * @param activity The activity.
-     * @return the logo of activity
-     */
-    public static Drawable getActivityLogo(@NonNull final Activity activity) {
-        return getActivityLogo(activity.getComponentName());
-    }
-
-    /**
-     * Return the logo of activity.
-     *
-     * @param clz The activity class.
-     * @return the logo of activity
-     */
-    public static Drawable getActivityLogo(@NonNull final Class<? extends Activity> clz) {
-        return getActivityLogo(new ComponentName(Utils.getApp(), clz));
-    }
-
-    /**
-     * Return the logo of activity.
-     *
-     * @param activityName The name of activity.
-     * @return the logo of activity
-     */
-    public static Drawable getActivityLogo(@NonNull final ComponentName activityName) {
-        PackageManager pm = Utils.getApp().getPackageManager();
-        try {
-            return pm.getActivityLogo(activityName);
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    private static void startActivity(final Context context,
-                                      final Bundle extras,
-                                      final String pkg,
-                                      final String cls,
-                                      final Bundle options) {
-        Intent intent = new Intent(Intent.ACTION_VIEW);
-        if (extras != null) intent.putExtras(extras);
-        intent.setComponent(new ComponentName(pkg, cls));
-        startActivity(intent, context, options);
-    }
-
-    private static boolean startActivity(final Intent intent,
-                                         final Context context,
-                                         final Bundle options) {
-        if (!isIntentAvailable(intent)) {
-            Log.e("ActivityUtils", "intent is unavailable");
-            return false;
-        }
-        if (!(context instanceof Activity)) {
-            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        }
-        if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            context.startActivity(intent, options);
-        } else {
-            context.startActivity(intent);
-        }
-        return true;
-    }
-
-    private static boolean isIntentAvailable(final Intent intent) {
-        return Utils.getApp()
-                .getPackageManager()
-                .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
-                .size() > 0;
-    }
-
-    private static boolean startActivityForResult(final Activity activity,
-                                                  final Bundle extras,
-                                                  final String pkg,
-                                                  final String cls,
-                                                  final int requestCode,
-                                                  final Bundle options) {
-        Intent intent = new Intent(Intent.ACTION_VIEW);
-        if (extras != null) intent.putExtras(extras);
-        intent.setComponent(new ComponentName(pkg, cls));
-        return startActivityForResult(intent, activity, requestCode, options);
-    }
-
-    private static boolean startActivityForResult(final Intent intent,
-                                                  final Activity activity,
-                                                  final int requestCode,
-                                                  final Bundle options) {
-        if (!isIntentAvailable(intent)) {
-            Log.e("ActivityUtils", "intent is unavailable");
-            return false;
-        }
-        if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            activity.startActivityForResult(intent, requestCode, options);
-        } else {
-            activity.startActivityForResult(intent, requestCode);
-        }
-        return true;
-    }
-
-    private static void startActivities(final Intent[] intents,
-                                        final Context context,
-                                        final Bundle options) {
-        if (!(context instanceof Activity)) {
-            for (Intent intent : intents) {
-                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            }
-        }
-        if (options != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            context.startActivities(intents, options);
-        } else {
-            context.startActivities(intents);
-        }
-    }
-
-    private static Bundle getOptionsBundle(final Context context,
-                                           final int enterAnim,
-                                           final int exitAnim) {
-        return ActivityOptionsCompat.makeCustomAnimation(context, enterAnim, exitAnim).toBundle();
-    }
-
-    private static Bundle getOptionsBundle(final Activity activity,
-                                           final View[] sharedElements) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) return null;
-        if (sharedElements == null) return null;
-        int len = sharedElements.length;
-        if (len <= 0) return null;
-        @SuppressWarnings("unchecked")
-        Pair<View, String>[] pairs = new Pair[len];
-        for (int i = 0; i < len; i++) {
-            pairs[i] = Pair.create(sharedElements[i], sharedElements[i].getTransitionName());
-        }
-        return ActivityOptionsCompat.makeSceneTransitionAnimation(activity, pairs).toBundle();
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
deleted file mode 100644
index 809f8d19c8..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/AdaptScreenUtils.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.content.res.Resources;
-import android.util.DisplayMetrics;
-
-
-public final class AdaptScreenUtils {
-
-    private static DisplayMetrics appDm;
-
-    /**
-     * Adapt for the horizontal screen, and call it in [android.app.Activity.getResources].
-     */
-    public static Resources adaptWidth(Resources resources, int designWidth) {
-        DisplayMetrics dm = resources.getDisplayMetrics();
-        float newXdpi = dm.xdpi = (dm.widthPixels * 72f) / designWidth;
-        setAppDmXdpi(newXdpi);
-        return resources;
-    }
-
-    /**
-     * Adapt for the vertical screen, and call it in [android.app.Activity.getResources].
-     */
-    public static Resources adaptHeight(Resources resources, int designHeight) {
-        DisplayMetrics dm = resources.getDisplayMetrics();
-        float newXdpi = dm.xdpi = (dm.heightPixels * 72f) / designHeight;
-        setAppDmXdpi(newXdpi);
-        return resources;
-    }
-
-    /**
-     * @param resources The resources.
-     * @return the resource
-     */
-    public static Resources closeAdapt(Resources resources) {
-        DisplayMetrics dm = resources.getDisplayMetrics();
-        float newXdpi = dm.xdpi = dm.density * 72;
-        setAppDmXdpi(newXdpi);
-        return resources;
-    }
-
-    /**
-     * Value of pt to value of px.
-     *
-     * @param ptValue The value of pt.
-     * @return value of px
-     */
-    public static int pt2Px(float ptValue) {
-        DisplayMetrics metrics = Utils.getApp().getResources().getDisplayMetrics();
-        return (int) (ptValue * metrics.xdpi / 72f + 0.5);
-    }
-
-    /**
-     * Value of px to value of pt.
-     *
-     * @param pxValue The value of px.
-     * @return value of pt
-     */
-    public static int px2Pt(float pxValue) {
-        DisplayMetrics metrics = Utils.getApp().getResources().getDisplayMetrics();
-        return (int) (pxValue * 72 / metrics.xdpi + 0.5);
-    }
-
-    private static void setAppDmXdpi(final float xdpi) {
-        if (appDm == null) {
-            appDm = Utils.getApp().getResources().getDisplayMetrics();
-        }
-        appDm.xdpi = xdpi;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/AppUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/AppUtils.java
deleted file mode 100644
index a08c764e02..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/AppUtils.java
+++ /dev/null
@@ -1,1045 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.ActivityManager;
-import android.app.AppOpsManager;
-import android.app.usage.UsageStats;
-import android.app.usage.UsageStatsManager;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
-import android.content.pm.Signature;
-import android.graphics.drawable.Drawable;
-import android.net.Uri;
-import android.os.Build;
-import android.provider.Settings;
-import android.support.annotation.NonNull;
-import android.support.v4.content.FileProvider;
-import android.util.Log;
-
-import java.io.File;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/02
- *     desc  : utils about app
- * </pre>
- */
-public final class AppUtils {
-
-    private AppUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Register the status of application changed listener.
-     *
-     * @param obj      The object.
-     * @param listener The status of application changed listener
-     */
-    public static void registerAppStatusChangedListener(@NonNull final Object obj,
-                                                        @NonNull final Utils.OnAppStatusChangedListener listener) {
-        Utils.getActivityLifecycle().addListener(obj, listener);
-    }
-
-    /**
-     * Unregister the status of application changed listener.
-     *
-     * @param obj The object.
-     */
-    public static void unregisterAppStatusChangedListener(@NonNull final Object obj) {
-        Utils.getActivityLifecycle().removeListener(obj);
-    }
-
-    /**
-     * Install the app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param filePath The path of file.
-     */
-    public static void installApp(final String filePath) {
-        installApp(getFileByPath(filePath));
-    }
-
-    /**
-     * Install the app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param file The file.
-     */
-    public static void installApp(final File file) {
-        if (!isFileExists(file)) return;
-        Utils.getApp().startActivity(getInstallAppIntent(file, true));
-    }
-
-    /**
-     * Install the app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param activity    The activity.
-     * @param filePath    The path of file.
-     * @param requestCode If &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void installApp(final Activity activity,
-                                  final String filePath,
-                                  final int requestCode) {
-        installApp(activity, getFileByPath(filePath), requestCode);
-    }
-
-    /**
-     * Install the app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param activity    The activity.
-     * @param file        The file.
-     * @param requestCode If &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void installApp(final Activity activity,
-                                  final File file,
-                                  final int requestCode) {
-        if (!isFileExists(file)) return;
-        activity.startActivityForResult(getInstallAppIntent(file), requestCode);
-    }
-
-    /**
-     * Install the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean installAppSilent(final String filePath) {
-        return installAppSilent(getFileByPath(filePath), null);
-    }
-
-    /**
-     * Install the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
-     *
-     * @param file The file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean installAppSilent(final File file) {
-        return installAppSilent(file, null);
-    }
-
-
-    /**
-     * Install the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
-     *
-     * @param filePath The path of file.
-     * @param params   The params of installation(e.g.,<code>-r</code>, <code>-s</code>).
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean installAppSilent(final String filePath, final String params) {
-        return installAppSilent(getFileByPath(filePath), params);
-    }
-
-    /**
-     * Install the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
-     *
-     * @param file   The file.
-     * @param params The params of installation(e.g.,<code>-r</code>, <code>-s</code>).
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean installAppSilent(final File file, final String params) {
-        return installAppSilent(file, params, isDeviceRooted());
-    }
-
-    /**
-     * Install the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.INSTALL_PACKAGES" />}</p>
-     *
-     * @param file     The file.
-     * @param params   The params of installation(e.g.,<code>-r</code>, <code>-s</code>).
-     * @param isRooted True to use root, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean installAppSilent(final File file,
-                                           final String params,
-                                           final boolean isRooted) {
-        if (!isFileExists(file)) return false;
-        String filePath = '"' + file.getAbsolutePath() + '"';
-        String command = "LD_LIBRARY_PATH=/vendor/lib*:/system/lib* pm install " +
-                (params == null ? "" : params + " ")
-                + filePath;
-        ShellUtils.CommandResult commandResult = ShellUtils.execCmd(command, isRooted);
-        if (commandResult.successMsg != null
-                && commandResult.successMsg.toLowerCase().contains("success")) {
-            return true;
-        } else {
-            Log.e("AppUtils", "installAppSilent successMsg: " + commandResult.successMsg +
-                    ", errorMsg: " + commandResult.errorMsg);
-            return false;
-        }
-    }
-
-    /**
-     * Uninstall the app.
-     *
-     * @param packageName The name of the package.
-     */
-    public static void uninstallApp(final String packageName) {
-        if (isSpace(packageName)) return;
-        Utils.getApp().startActivity(getUninstallAppIntent(packageName, true));
-    }
-
-    /**
-     * Uninstall the app.
-     *
-     * @param activity    The activity.
-     * @param packageName The name of the package.
-     * @param requestCode If &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void uninstallApp(final Activity activity,
-                                    final String packageName,
-                                    final int requestCode) {
-        if (isSpace(packageName)) return;
-        activity.startActivityForResult(getUninstallAppIntent(packageName), requestCode);
-    }
-
-    /**
-     * Uninstall the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.DELETE_PACKAGES" />}</p>
-     *
-     * @param packageName The name of the package.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean uninstallAppSilent(final String packageName) {
-        return uninstallAppSilent(packageName, false);
-    }
-
-    /**
-     * Uninstall the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.DELETE_PACKAGES" />}</p>
-     *
-     * @param packageName The name of the package.
-     * @param isKeepData  Is keep the data.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean uninstallAppSilent(final String packageName, final boolean isKeepData) {
-        return uninstallAppSilent(packageName, isKeepData, isDeviceRooted());
-    }
-
-    /**
-     * Uninstall the app silently.
-     * <p>Without root permission must hold
-     * {@code <uses-permission android:name="android.permission.DELETE_PACKAGES" />}</p>
-     *
-     * @param packageName The name of the package.
-     * @param isKeepData  Is keep the data.
-     * @param isRooted    True to use root, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean uninstallAppSilent(final String packageName,
-                                             final boolean isKeepData,
-                                             final boolean isRooted) {
-        if (isSpace(packageName)) return false;
-        String command = "LD_LIBRARY_PATH=/vendor/lib*:/system/lib* pm uninstall "
-                + (isKeepData ? "-k " : "")
-                + packageName;
-        ShellUtils.CommandResult commandResult = ShellUtils.execCmd(command, isRooted);
-        if (commandResult.successMsg != null
-                && commandResult.successMsg.toLowerCase().contains("success")) {
-            return true;
-        } else {
-            Log.e("AppUtils", "uninstallAppSilent successMsg: " + commandResult.successMsg +
-                    ", errorMsg: " + commandResult.errorMsg);
-            return false;
-        }
-    }
-
-    /**
-     * Return whether the app is installed.
-     *
-     * @param packageName The name of the package.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppInstalled(@NonNull final String packageName) {
-        return !isSpace(packageName)
-                && Utils.getApp().getPackageManager().getLaunchIntentForPackage(packageName) != null;
-    }
-
-    /**
-     * Return whether the app is installed.
-     *
-     * @param action   The Intent action, such as ACTION_VIEW.
-     * @param category The desired category.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppInstalled(@NonNull final String action,
-                                         @NonNull final String category) {
-        Intent intent = new Intent(action);
-        intent.addCategory(category);
-        PackageManager pm = Utils.getApp().getPackageManager();
-        ResolveInfo info = pm.resolveActivity(intent, 0);
-        return info != null;
-    }
-
-    /**
-     * Return whether the application with root permission.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppRoot() {
-        ShellUtils.CommandResult result = ShellUtils.execCmd("echo root", true);
-        if (result.result == 0) return true;
-        if (result.errorMsg != null) {
-            Log.d("AppUtils", "isAppRoot() called" + result.errorMsg);
-        }
-        return false;
-    }
-
-    /**
-     * Return whether it is a debug application.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppDebug() {
-        return isAppDebug(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return whether it is a debug application.
-     *
-     * @param packageName The name of the package.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppDebug(final String packageName) {
-        if (isSpace(packageName)) return false;
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
-            return ai != null && (ai.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Return whether it is a system application.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppSystem() {
-        return isAppSystem(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return whether it is a system application.
-     *
-     * @param packageName The name of the package.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppSystem(final String packageName) {
-        if (isSpace(packageName)) return false;
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
-            return ai != null && (ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Return whether application is foreground.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppForeground() {
-        return Utils.isAppForeground();
-    }
-
-    /**
-     * Return whether application is foreground.
-     * <p>Target APIs greater than 21 must hold
-     * {@code <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />}</p>
-     *
-     * @param packageName The name of the package.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isAppForeground(@NonNull final String packageName) {
-        return !isSpace(packageName) && packageName.equals(getForegroundProcessName());
-    }
-
-    /**
-     * Launch the application.
-     *
-     * @param packageName The name of the package.
-     */
-    public static void launchApp(final String packageName) {
-        if (isSpace(packageName)) return;
-        Utils.getApp().startActivity(getLaunchAppIntent(packageName, true));
-    }
-
-    /**
-     * Launch the application.
-     *
-     * @param activity    The activity.
-     * @param packageName The name of the package.
-     * @param requestCode If &gt;= 0, this code will be returned in
-     *                    onActivityResult() when the activity exits.
-     */
-    public static void launchApp(final Activity activity,
-                                 final String packageName,
-                                 final int requestCode) {
-        if (isSpace(packageName)) return;
-        activity.startActivityForResult(getLaunchAppIntent(packageName), requestCode);
-    }
-
-    /**
-     * Relaunch the application.
-     */
-    public static void relaunchApp() {
-        relaunchApp(false);
-    }
-
-    /**
-     * Relaunch the application.
-     *
-     * @param isKillProcess True to kill the process, false otherwise.
-     */
-    public static void relaunchApp(final boolean isKillProcess) {
-        PackageManager packageManager = Utils.getApp().getPackageManager();
-        Intent intent = packageManager.getLaunchIntentForPackage(Utils.getApp().getPackageName());
-        if (intent == null) return;
-        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
-        Utils.getApp().startActivity(intent);
-        if (!isKillProcess) return;
-        android.os.Process.killProcess(android.os.Process.myPid());
-        System.exit(0);
-    }
-
-    /**
-     * Launch the application's details settings.
-     */
-    public static void launchAppDetailsSettings() {
-        launchAppDetailsSettings(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Launch the application's details settings.
-     *
-     * @param packageName The name of the package.
-     */
-    public static void launchAppDetailsSettings(final String packageName) {
-        if (isSpace(packageName)) return;
-        Intent intent = new Intent("android.settings.APPLICATION_DETAILS_SETTINGS");
-        intent.setData(Uri.parse("package:" + packageName));
-        Utils.getApp().startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-    }
-
-    /**
-     * Exit the application.
-     */
-    public static void exitApp() {
-        List<Activity> activityList = Utils.getActivityList();
-        for (int i = activityList.size() - 1; i >= 0; --i) {// remove from top
-            Activity activity = activityList.get(i);
-            // sActivityList remove the index activity at onActivityDestroyed
-            activity.finish();
-        }
-        System.exit(0);
-    }
-
-    /**
-     * Return the application's icon.
-     *
-     * @return the application's icon
-     */
-    public static Drawable getAppIcon() {
-        return getAppIcon(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's icon.
-     *
-     * @param packageName The name of the package.
-     * @return the application's icon
-     */
-    public static Drawable getAppIcon(final String packageName) {
-        if (isSpace(packageName)) return null;
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            PackageInfo pi = pm.getPackageInfo(packageName, 0);
-            return pi == null ? null : pi.applicationInfo.loadIcon(pm);
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Return the application's package name.
-     *
-     * @return the application's package name
-     */
-    public static String getAppPackageName() {
-        return Utils.getApp().getPackageName();
-    }
-
-    /**
-     * Return the application's name.
-     *
-     * @return the application's name
-     */
-    public static String getAppName() {
-        return getAppName(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's name.
-     *
-     * @param packageName The name of the package.
-     * @return the application's name
-     */
-    public static String getAppName(final String packageName) {
-        if (isSpace(packageName)) return "";
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            PackageInfo pi = pm.getPackageInfo(packageName, 0);
-            return pi == null ? null : pi.applicationInfo.loadLabel(pm).toString();
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * Return the application's path.
-     *
-     * @return the application's path
-     */
-    public static String getAppPath() {
-        return getAppPath(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's path.
-     *
-     * @param packageName The name of the package.
-     * @return the application's path
-     */
-    public static String getAppPath(final String packageName) {
-        if (isSpace(packageName)) return "";
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            PackageInfo pi = pm.getPackageInfo(packageName, 0);
-            return pi == null ? null : pi.applicationInfo.sourceDir;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * Return the application's version name.
-     *
-     * @return the application's version name
-     */
-    public static String getAppVersionName() {
-        return getAppVersionName(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's version name.
-     *
-     * @param packageName The name of the package.
-     * @return the application's version name
-     */
-    public static String getAppVersionName(final String packageName) {
-        if (isSpace(packageName)) return "";
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            PackageInfo pi = pm.getPackageInfo(packageName, 0);
-            return pi == null ? null : pi.versionName;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * Return the application's version code.
-     *
-     * @return the application's version code
-     */
-    public static int getAppVersionCode() {
-        return getAppVersionCode(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's version code.
-     *
-     * @param packageName The name of the package.
-     * @return the application's version code
-     */
-    public static int getAppVersionCode(final String packageName) {
-        if (isSpace(packageName)) return -1;
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            PackageInfo pi = pm.getPackageInfo(packageName, 0);
-            return pi == null ? -1 : pi.versionCode;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return -1;
-        }
-    }
-
-    /**
-     * Return the application's signature.
-     *
-     * @return the application's signature
-     */
-    public static Signature[] getAppSignature() {
-        return getAppSignature(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's signature.
-     *
-     * @param packageName The name of the package.
-     * @return the application's signature
-     */
-    public static Signature[] getAppSignature(final String packageName) {
-        if (isSpace(packageName)) return null;
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            @SuppressLint("PackageManagerGetSignatures")
-            PackageInfo pi = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
-            return pi == null ? null : pi.signatures;
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Return the application's signature for SHA1 value.
-     *
-     * @return the application's signature for SHA1 value
-     */
-    public static String getAppSignatureSHA1() {
-        return getAppSignatureSHA1(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's signature for SHA1 value.
-     *
-     * @param packageName The name of the package.
-     * @return the application's signature for SHA1 value
-     */
-    public static String getAppSignatureSHA1(final String packageName) {
-        return getAppSignatureHash(packageName, "SHA1");
-    }
-
-    /**
-     * Return the application's signature for SHA256 value.
-     *
-     * @return the application's signature for SHA256 value
-     */
-    public static String getAppSignatureSHA256() {
-        return getAppSignatureSHA256(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's signature for SHA256 value.
-     *
-     * @param packageName The name of the package.
-     * @return the application's signature for SHA256 value
-     */
-    public static String getAppSignatureSHA256(final String packageName) {
-        return getAppSignatureHash(packageName, "SHA256");
-    }
-
-    /**
-     * Return the application's signature for MD5 value.
-     *
-     * @return the application's signature for MD5 value
-     */
-    public static String getAppSignatureMD5() {
-        return getAppSignatureMD5(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's signature for MD5 value.
-     *
-     * @param packageName The name of the package.
-     * @return the application's signature for MD5 value
-     */
-    public static String getAppSignatureMD5(final String packageName) {
-        return getAppSignatureHash(packageName, "MD5");
-    }
-
-    private static String getAppSignatureHash(final String packageName, final String algorithm) {
-        if (isSpace(packageName)) return "";
-        Signature[] signature = getAppSignature(packageName);
-        if (signature == null || signature.length <= 0) return "";
-        return bytes2HexString(hashTemplate(signature[0].toByteArray(), algorithm))
-                .replaceAll("(?<=[0-9A-F]{2})[0-9A-F]{2}", ":$0");
-    }
-
-    /**
-     * Return the application's information.
-     * <ul>
-     * <li>name of package</li>
-     * <li>icon</li>
-     * <li>name</li>
-     * <li>path of package</li>
-     * <li>version name</li>
-     * <li>version code</li>
-     * <li>is system</li>
-     * </ul>
-     *
-     * @return the application's information
-     */
-    public static AppInfo getAppInfo() {
-        return getAppInfo(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the application's information.
-     * <ul>
-     * <li>name of package</li>
-     * <li>icon</li>
-     * <li>name</li>
-     * <li>path of package</li>
-     * <li>version name</li>
-     * <li>version code</li>
-     * <li>is system</li>
-     * </ul>
-     *
-     * @param packageName The name of the package.
-     * @return 当前应用的 AppInfo
-     */
-    public static AppInfo getAppInfo(final String packageName) {
-        try {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            PackageInfo pi = pm.getPackageInfo(packageName, 0);
-            return getBean(pm, pi);
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Return the applications' information.
-     *
-     * @return the applications' information
-     */
-    public static List<AppInfo> getAppsInfo() {
-        List<AppInfo> list = new ArrayList<>();
-        PackageManager pm = Utils.getApp().getPackageManager();
-        List<PackageInfo> installedPackages = pm.getInstalledPackages(0);
-        for (PackageInfo pi : installedPackages) {
-            AppInfo ai = getBean(pm, pi);
-            if (ai == null) continue;
-            list.add(ai);
-        }
-        return list;
-    }
-
-    private static AppInfo getBean(final PackageManager pm, final PackageInfo pi) {
-        if (pm == null || pi == null) return null;
-        ApplicationInfo ai = pi.applicationInfo;
-        String packageName = pi.packageName;
-        String name = ai.loadLabel(pm).toString();
-        Drawable icon = ai.loadIcon(pm);
-        String packagePath = ai.sourceDir;
-        String versionName = pi.versionName;
-        int versionCode = pi.versionCode;
-        boolean isSystem = (ApplicationInfo.FLAG_SYSTEM & ai.flags) != 0;
-        return new AppInfo(packageName, name, icon, packagePath, versionName, versionCode, isSystem);
-    }
-
-    /**
-     * The application's information.
-     */
-    public static class AppInfo {
-
-        private String   packageName;
-        private String   name;
-        private Drawable icon;
-        private String   packagePath;
-        private String   versionName;
-        private int      versionCode;
-        private boolean  isSystem;
-
-        public Drawable getIcon() {
-            return icon;
-        }
-
-        public void setIcon(final Drawable icon) {
-            this.icon = icon;
-        }
-
-        public boolean isSystem() {
-            return isSystem;
-        }
-
-        public void setSystem(final boolean isSystem) {
-            this.isSystem = isSystem;
-        }
-
-        public String getPackageName() {
-            return packageName;
-        }
-
-        public void setPackageName(final String packageName) {
-            this.packageName = packageName;
-        }
-
-        public String getName() {
-            return name;
-        }
-
-        public void setName(final String name) {
-            this.name = name;
-        }
-
-        public String getPackagePath() {
-            return packagePath;
-        }
-
-        public void setPackagePath(final String packagePath) {
-            this.packagePath = packagePath;
-        }
-
-        public int getVersionCode() {
-            return versionCode;
-        }
-
-        public void setVersionCode(final int versionCode) {
-            this.versionCode = versionCode;
-        }
-
-        public String getVersionName() {
-            return versionName;
-        }
-
-        public void setVersionName(final String versionName) {
-            this.versionName = versionName;
-        }
-
-        public AppInfo(String packageName, String name, Drawable icon, String packagePath,
-                       String versionName, int versionCode, boolean isSystem) {
-            this.setName(name);
-            this.setIcon(icon);
-            this.setPackageName(packageName);
-            this.setPackagePath(packagePath);
-            this.setVersionName(versionName);
-            this.setVersionCode(versionCode);
-            this.setSystem(isSystem);
-        }
-
-        @Override
-        public String toString() {
-            return "pkg name: " + getPackageName() +
-                    "\napp icon: " + getIcon() +
-                    "\napp name: " + getName() +
-                    "\napp path: " + getPackagePath() +
-                    "\napp v name: " + getVersionName() +
-                    "\napp v code: " + getVersionCode() +
-                    "\nis system: " + isSystem();
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static boolean isFileExists(final File file) {
-        return file != null && file.exists();
-    }
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static boolean isDeviceRooted() {
-        String su = "su";
-        String[] locations = {"/system/bin/", "/system/xbin/", "/sbin/", "/system/sd/xbin/",
-                "/system/bin/failsafe/", "/data/local/xbin/", "/data/local/bin/", "/data/local/"};
-        for (String location : locations) {
-            if (new File(location + su).exists()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private static final char HEX_DIGITS[] =
-            {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-
-    private static byte[] hashTemplate(final byte[] data, final String algorithm) {
-        if (data == null || data.length <= 0) return null;
-        try {
-            MessageDigest md = MessageDigest.getInstance(algorithm);
-            md.update(data);
-            return md.digest();
-        } catch (NoSuchAlgorithmException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    private static String bytes2HexString(final byte[] bytes) {
-        if (bytes == null) return "";
-        int len = bytes.length;
-        if (len <= 0) return "";
-        char[] ret = new char[len << 1];
-        for (int i = 0, j = 0; i < len; i++) {
-            ret[j++] = HEX_DIGITS[bytes[i] >> 4 & 0x0f];
-            ret[j++] = HEX_DIGITS[bytes[i] & 0x0f];
-        }
-        return new String(ret);
-    }
-
-    private static Intent getInstallAppIntent(final File file) {
-        return getInstallAppIntent(file, false);
-    }
-
-    private static Intent getInstallAppIntent(final File file, final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_VIEW);
-        Uri data;
-        String type = "application/vnd.android.package-archive";
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
-            data = Uri.fromFile(file);
-        } else {
-            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-            String authority = Utils.getApp().getPackageName() + ".utilcode.provider";
-            data = FileProvider.getUriForFile(Utils.getApp(), authority, file);
-        }
-        intent.setDataAndType(data, type);
-        return isNewTask ? intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) : intent;
-    }
-
-    private static Intent getUninstallAppIntent(final String packageName) {
-        return getUninstallAppIntent(packageName, false);
-    }
-
-    private static Intent getUninstallAppIntent(final String packageName, final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_DELETE);
-        intent.setData(Uri.parse("package:" + packageName));
-        return isNewTask ? intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) : intent;
-    }
-
-    private static Intent getLaunchAppIntent(final String packageName) {
-        return getLaunchAppIntent(packageName, false);
-    }
-
-    private static Intent getLaunchAppIntent(final String packageName, final boolean isNewTask) {
-        Intent intent = Utils.getApp().getPackageManager().getLaunchIntentForPackage(packageName);
-        if (intent == null) return null;
-        return isNewTask ? intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) : intent;
-    }
-
-    private static String getForegroundProcessName() {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> pInfo = am.getRunningAppProcesses();
-        if (pInfo != null && pInfo.size() > 0) {
-            for (ActivityManager.RunningAppProcessInfo aInfo : pInfo) {
-                if (aInfo.importance
-                        == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
-                    return aInfo.processName;
-                }
-            }
-        }
-        if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP) {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
-            List<ResolveInfo> list =
-                    pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
-            Log.i("ProcessUtils", list.toString());
-            if (list.size() <= 0) {
-                Log.i("ProcessUtils",
-                        "getForegroundProcessName: noun of access to usage information.");
-                return "";
-            }
-            try {// Access to usage information.
-                ApplicationInfo info =
-                        pm.getApplicationInfo(Utils.getApp().getPackageName(), 0);
-                AppOpsManager aom =
-                        (AppOpsManager) Utils.getApp().getSystemService(Context.APP_OPS_SERVICE);
-                //noinspection ConstantConditions
-                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
-                        info.uid,
-                        info.packageName) != AppOpsManager.MODE_ALLOWED) {
-                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-                    Utils.getApp().startActivity(intent);
-                }
-                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
-                        info.uid,
-                        info.packageName) != AppOpsManager.MODE_ALLOWED) {
-                    Log.i("ProcessUtils",
-                            "getForegroundProcessName: refuse to device usage stats.");
-                    return "";
-                }
-                UsageStatsManager usageStatsManager = (UsageStatsManager) Utils.getApp()
-                        .getSystemService(Context.USAGE_STATS_SERVICE);
-                List<UsageStats> usageStatsList = null;
-                if (usageStatsManager != null) {
-                    long endTime = System.currentTimeMillis();
-                    long beginTime = endTime - 86400000 * 7;
-                    usageStatsList = usageStatsManager
-                            .queryUsageStats(UsageStatsManager.INTERVAL_BEST,
-                                    beginTime, endTime);
-                }
-                if (usageStatsList == null || usageStatsList.isEmpty()) return null;
-                UsageStats recentStats = null;
-                for (UsageStats usageStats : usageStatsList) {
-                    if (recentStats == null
-                            || usageStats.getLastTimeUsed() > recentStats.getLastTimeUsed()) {
-                        recentStats = usageStats;
-                    }
-                }
-                return recentStats == null ? null : recentStats.getPackageName();
-            } catch (PackageManager.NameNotFoundException e) {
-                e.printStackTrace();
-            }
-        }
-        return "";
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/BarUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/BarUtils.java
deleted file mode 100644
index 1fb47be579..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/BarUtils.java
+++ /dev/null
@@ -1,742 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.content.Context;
-import android.content.res.Resources;
-import android.graphics.Color;
-import android.graphics.Point;
-import android.os.Build;
-import android.support.annotation.ColorInt;
-import android.support.annotation.IntRange;
-import android.support.annotation.NonNull;
-import android.support.annotation.RequiresApi;
-import android.support.annotation.RequiresPermission;
-import android.support.v4.widget.DrawerLayout;
-import android.util.TypedValue;
-import android.view.Display;
-import android.view.KeyCharacterMap;
-import android.view.KeyEvent;
-import android.view.View;
-import android.view.ViewConfiguration;
-import android.view.ViewGroup;
-import android.view.ViewGroup.MarginLayoutParams;
-import android.view.Window;
-import android.view.WindowManager;
-import android.widget.LinearLayout;
-
-import java.lang.reflect.Method;
-
-import static android.Manifest.permission.EXPAND_STATUS_BAR;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/23
- *     desc  : utils about bar
- * </pre>
- */
-public final class BarUtils {
-
-    ///////////////////////////////////////////////////////////////////////////
-    // status bar
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static final int    DEFAULT_ALPHA = 112;
-    private static final String TAG_COLOR     = "TAG_COLOR";
-    private static final String TAG_ALPHA     = "TAG_ALPHA";
-    private static final String TAG_OFFSET    = "TAG_OFFSET";
-    private static final int    KEY_OFFSET    = -123;
-
-    private BarUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return the status bar's height.
-     *
-     * @return the status bar's height
-     */
-    public static int getStatusBarHeight() {
-        Resources resources = Resources.getSystem();
-        int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
-        return resources.getDimensionPixelSize(resourceId);
-    }
-
-    /**
-     * Set the status bar's visibility.
-     *
-     * @param activity  The activity.
-     * @param isVisible True to set status bar visible, false otherwise.
-     */
-    public static void setStatusBarVisibility(@NonNull final Activity activity,
-                                              final boolean isVisible) {
-        setStatusBarVisibility(activity.getWindow(), isVisible);
-    }
-
-    /**
-     * Set the status bar's visibility.
-     *
-     * @param window    The window.
-     * @param isVisible True to set status bar visible, false otherwise.
-     */
-    public static void setStatusBarVisibility(@NonNull final Window window,
-                                              final boolean isVisible) {
-        if (isVisible) {
-            window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-            showColorView(window);
-            showAlphaView(window);
-            addMarginTopEqualStatusBarHeight(window);
-        } else {
-            window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-            hideColorView(window);
-            hideAlphaView(window);
-            subtractMarginTopEqualStatusBarHeight(window);
-        }
-    }
-
-    /**
-     * Return whether the status bar is visible.
-     *
-     * @param activity The activity.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isStatusBarVisible(@NonNull final Activity activity) {
-        int flags = activity.getWindow().getAttributes().flags;
-        return (flags & WindowManager.LayoutParams.FLAG_FULLSCREEN) == 0;
-    }
-
-    /**
-     * Set the status bar's light mode.
-     *
-     * @param activity    The activity.
-     * @param isLightMode True to set status bar light mode, false otherwise.
-     */
-    public static void setStatusBarLightMode(@NonNull final Activity activity,
-                                             final boolean isLightMode) {
-        setStatusBarLightMode(activity.getWindow(), isLightMode);
-    }
-
-    /**
-     * Set the status bar's light mode.
-     *
-     * @param window      The window.
-     * @param isLightMode True to set status bar light mode, false otherwise.
-     */
-    public static void setStatusBarLightMode(@NonNull final Window window,
-                                             final boolean isLightMode) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            View decorView = window.getDecorView();
-            if (decorView != null) {
-                int vis = decorView.getSystemUiVisibility();
-                if (isLightMode) {
-                    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
-                    vis |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
-                } else {
-                    vis &= ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
-                }
-                decorView.setSystemUiVisibility(vis);
-            }
-        }
-    }
-
-    /**
-     * Add the top margin size equals status bar's height for view.
-     *
-     * @param view The view.
-     */
-    public static void addMarginTopEqualStatusBarHeight(@NonNull View view) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        view.setTag(TAG_OFFSET);
-        Object haveSetOffset = view.getTag(KEY_OFFSET);
-        if (haveSetOffset != null && (Boolean) haveSetOffset) return;
-        MarginLayoutParams layoutParams = (MarginLayoutParams) view.getLayoutParams();
-        layoutParams.setMargins(layoutParams.leftMargin,
-                layoutParams.topMargin + getStatusBarHeight(),
-                layoutParams.rightMargin,
-                layoutParams.bottomMargin);
-        view.setTag(KEY_OFFSET, true);
-    }
-
-    /**
-     * Subtract the top margin size equals status bar's height for view.
-     *
-     * @param view The view.
-     */
-    public static void subtractMarginTopEqualStatusBarHeight(@NonNull View view) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        Object haveSetOffset = view.getTag(KEY_OFFSET);
-        if (haveSetOffset == null || !(Boolean) haveSetOffset) return;
-        MarginLayoutParams layoutParams = (MarginLayoutParams) view.getLayoutParams();
-        layoutParams.setMargins(layoutParams.leftMargin,
-                layoutParams.topMargin - getStatusBarHeight(),
-                layoutParams.rightMargin,
-                layoutParams.bottomMargin);
-        view.setTag(KEY_OFFSET, false);
-    }
-
-    private static void addMarginTopEqualStatusBarHeight(final Window window) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        View withTag = window.getDecorView().findViewWithTag(TAG_OFFSET);
-        if (withTag == null) return;
-        addMarginTopEqualStatusBarHeight(withTag);
-    }
-
-    private static void subtractMarginTopEqualStatusBarHeight(final Window window) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        View withTag = window.getDecorView().findViewWithTag(TAG_OFFSET);
-        if (withTag == null) return;
-        subtractMarginTopEqualStatusBarHeight(withTag);
-    }
-
-    /**
-     * Set the status bar's color.
-     *
-     * @param activity The activity.
-     * @param color    The status bar's color.
-     */
-    public static void setStatusBarColor(@NonNull final Activity activity,
-                                         @ColorInt final int color) {
-        setStatusBarColor(activity, color, DEFAULT_ALPHA, false);
-    }
-
-    /**
-     * Set the status bar's color.
-     *
-     * @param activity The activity.
-     * @param color    The status bar's color.
-     * @param alpha    The status bar's alpha which isn't the same as alpha in the color.
-     */
-    public static void setStatusBarColor(@NonNull final Activity activity,
-                                         @ColorInt final int color,
-                                         @IntRange(from = 0, to = 255) final int alpha) {
-        setStatusBarColor(activity, color, alpha, false);
-    }
-
-    /**
-     * Set the status bar's color.
-     *
-     * @param activity The activity.
-     * @param color    The status bar's color.
-     * @param alpha    The status bar's alpha which isn't the same as alpha in the color.
-     * @param isDecor  True to add fake status bar in DecorView,
-     *                 false to add fake status bar in ContentView.
-     */
-    public static void setStatusBarColor(@NonNull final Activity activity,
-                                         @ColorInt final int color,
-                                         @IntRange(from = 0, to = 255) final int alpha,
-                                         final boolean isDecor) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        hideAlphaView(activity);
-        transparentStatusBar(activity);
-        addStatusBarColor(activity, color, alpha, isDecor);
-    }
-
-    /**
-     * Set the status bar's color.
-     *
-     * @param fakeStatusBar The fake status bar view.
-     * @param color         The status bar's color.
-     */
-    public static void setStatusBarColor(@NonNull final View fakeStatusBar,
-                                         @ColorInt final int color) {
-        setStatusBarColor(fakeStatusBar, color, DEFAULT_ALPHA);
-    }
-
-    /**
-     * Set the status bar's color.
-     *
-     * @param fakeStatusBar The fake status bar view.
-     * @param color         The status bar's color.
-     * @param alpha         The status bar's alpha which isn't the same as alpha in the color.
-     */
-    public static void setStatusBarColor(@NonNull final View fakeStatusBar,
-                                         @ColorInt final int color,
-                                         @IntRange(from = 0, to = 255) final int alpha) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        fakeStatusBar.setVisibility(View.VISIBLE);
-        transparentStatusBar((Activity) fakeStatusBar.getContext());
-        ViewGroup.LayoutParams layoutParams = fakeStatusBar.getLayoutParams();
-        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
-        layoutParams.height = getStatusBarHeight();
-        fakeStatusBar.setBackgroundColor(getStatusBarColor(color, alpha));
-    }
-
-    /**
-     * Set the status bar's alpha.
-     *
-     * @param activity The activity.
-     */
-    public static void setStatusBarAlpha(@NonNull final Activity activity) {
-        setStatusBarAlpha(activity, DEFAULT_ALPHA, false);
-    }
-
-    /**
-     * Set the status bar's alpha.
-     *
-     * @param activity The activity.
-     * @param alpha    The status bar's alpha.
-     */
-    public static void setStatusBarAlpha(@NonNull final Activity activity,
-                                         @IntRange(from = 0, to = 255) final int alpha) {
-        setStatusBarAlpha(activity, alpha, false);
-    }
-
-    /**
-     * Set the status bar's alpha.
-     *
-     * @param activity The activity.
-     * @param alpha    The status bar's alpha.
-     * @param isDecor  True to add fake status bar in DecorView,
-     *                 false to add fake status bar in ContentView.
-     */
-    public static void setStatusBarAlpha(@NonNull final Activity activity,
-                                         @IntRange(from = 0, to = 255) final int alpha,
-                                         final boolean isDecor) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        hideColorView(activity);
-        transparentStatusBar(activity);
-        addStatusBarAlpha(activity, alpha, isDecor);
-    }
-
-    /**
-     * Set the status bar's alpha.
-     *
-     * @param fakeStatusBar The fake status bar view.
-     */
-    public static void setStatusBarAlpha(@NonNull final View fakeStatusBar) {
-        setStatusBarAlpha(fakeStatusBar, DEFAULT_ALPHA);
-    }
-
-    /**
-     * Set the status bar's alpha.
-     *
-     * @param fakeStatusBar The fake status bar view.
-     * @param alpha         The status bar's alpha.
-     */
-    public static void setStatusBarAlpha(@NonNull final View fakeStatusBar,
-                                         @IntRange(from = 0, to = 255) final int alpha) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        fakeStatusBar.setVisibility(View.VISIBLE);
-        transparentStatusBar((Activity) fakeStatusBar.getContext());
-        ViewGroup.LayoutParams layoutParams = fakeStatusBar.getLayoutParams();
-        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
-        layoutParams.height = getStatusBarHeight();
-        fakeStatusBar.setBackgroundColor(Color.argb(alpha, 0, 0, 0));
-    }
-
-    /**
-     * Set the custom status bar.
-     *
-     * @param fakeStatusBar The fake status bar view.
-     */
-    public static void setStatusBarCustom(@NonNull final View fakeStatusBar) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        fakeStatusBar.setVisibility(View.VISIBLE);
-        transparentStatusBar((Activity) fakeStatusBar.getContext());
-        ViewGroup.LayoutParams layoutParams = fakeStatusBar.getLayoutParams();
-        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
-        layoutParams.height = getStatusBarHeight();
-    }
-
-    /**
-     * Set the status bar's color for DrawerLayout.
-     * <p>DrawLayout must add {@code android:fitsSystemWindows="true"}</p>
-     *
-     * @param activity      The activity.
-     * @param drawer        The DrawLayout.
-     * @param fakeStatusBar The fake status bar view.
-     * @param color         The status bar's color.
-     * @param isTop         True to set DrawerLayout at the top layer, false otherwise.
-     */
-    public static void setStatusBarColor4Drawer(@NonNull final Activity activity,
-                                                @NonNull final DrawerLayout drawer,
-                                                @NonNull final View fakeStatusBar,
-                                                @ColorInt final int color,
-                                                final boolean isTop) {
-        setStatusBarColor4Drawer(activity, drawer, fakeStatusBar, color, DEFAULT_ALPHA, isTop);
-    }
-
-    /**
-     * Set the status bar's color for DrawerLayout.
-     * <p>DrawLayout must add {@code android:fitsSystemWindows="true"}</p>
-     *
-     * @param activity      The activity.
-     * @param drawer        The DrawLayout.
-     * @param fakeStatusBar The fake status bar view.
-     * @param color         The status bar's color.
-     * @param alpha         The status bar's alpha which isn't the same as alpha in the color.
-     * @param isTop         True to set DrawerLayout at the top layer, false otherwise.
-     */
-    public static void setStatusBarColor4Drawer(@NonNull final Activity activity,
-                                                @NonNull final DrawerLayout drawer,
-                                                @NonNull final View fakeStatusBar,
-                                                @ColorInt final int color,
-                                                @IntRange(from = 0, to = 255) final int alpha,
-                                                final boolean isTop) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        drawer.setFitsSystemWindows(false);
-        transparentStatusBar(activity);
-        setStatusBarColor(fakeStatusBar, color, isTop ? alpha : 0);
-        for (int i = 0, len = drawer.getChildCount(); i < len; i++) {
-            drawer.getChildAt(i).setFitsSystemWindows(false);
-        }
-        if (isTop) {
-            hideAlphaView(activity);
-        } else {
-            addStatusBarAlpha(activity, alpha, false);
-        }
-    }
-
-    /**
-     * Set the status bar's alpha for DrawerLayout.
-     * <p>DrawLayout must add {@code android:fitsSystemWindows="true"}</p>
-     *
-     * @param activity      The activity.
-     * @param drawer        drawerLayout
-     * @param fakeStatusBar The fake status bar view.
-     * @param isTop         True to set DrawerLayout at the top layer, false otherwise.
-     */
-    public static void setStatusBarAlpha4Drawer(@NonNull final Activity activity,
-                                                @NonNull final DrawerLayout drawer,
-                                                @NonNull final View fakeStatusBar,
-                                                final boolean isTop) {
-        setStatusBarAlpha4Drawer(activity, drawer, fakeStatusBar, DEFAULT_ALPHA, isTop);
-    }
-
-    /**
-     * Set the status bar's alpha for DrawerLayout.
-     * <p>DrawLayout must add {@code android:fitsSystemWindows="true"}</p>
-     *
-     * @param activity      The activity.
-     * @param drawer        drawerLayout
-     * @param fakeStatusBar The fake status bar view.
-     * @param alpha         The status bar's alpha.
-     * @param isTop         True to set DrawerLayout at the top layer, false otherwise.
-     */
-    public static void setStatusBarAlpha4Drawer(@NonNull final Activity activity,
-                                                @NonNull final DrawerLayout drawer,
-                                                @NonNull final View fakeStatusBar,
-                                                @IntRange(from = 0, to = 255) final int alpha,
-                                                final boolean isTop) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        drawer.setFitsSystemWindows(false);
-        transparentStatusBar(activity);
-        setStatusBarAlpha(fakeStatusBar, isTop ? alpha : 0);
-        for (int i = 0, len = drawer.getChildCount(); i < len; i++) {
-            drawer.getChildAt(i).setFitsSystemWindows(false);
-        }
-        if (isTop) {
-            hideAlphaView(activity);
-        } else {
-            addStatusBarAlpha(activity, alpha, false);
-        }
-    }
-
-    private static void addStatusBarColor(final Activity activity,
-                                          final int color,
-                                          final int alpha,
-                                          boolean isDecor) {
-        ViewGroup parent = isDecor ?
-                (ViewGroup) activity.getWindow().getDecorView() :
-                (ViewGroup) activity.findViewById(android.R.id.content);
-        View fakeStatusBarView = parent.findViewWithTag(TAG_COLOR);
-        if (fakeStatusBarView != null) {
-            if (fakeStatusBarView.getVisibility() == View.GONE) {
-                fakeStatusBarView.setVisibility(View.VISIBLE);
-            }
-            fakeStatusBarView.setBackgroundColor(getStatusBarColor(color, alpha));
-        } else {
-            parent.addView(createColorStatusBarView(activity, color, alpha));
-        }
-    }
-
-    private static void addStatusBarAlpha(final Activity activity,
-                                          final int alpha,
-                                          boolean isDecor) {
-        ViewGroup parent = isDecor ?
-                (ViewGroup) activity.getWindow().getDecorView() :
-                (ViewGroup) activity.findViewById(android.R.id.content);
-        View fakeStatusBarView = parent.findViewWithTag(TAG_ALPHA);
-        if (fakeStatusBarView != null) {
-            if (fakeStatusBarView.getVisibility() == View.GONE) {
-                fakeStatusBarView.setVisibility(View.VISIBLE);
-            }
-            fakeStatusBarView.setBackgroundColor(Color.argb(alpha, 0, 0, 0));
-        } else {
-            parent.addView(createAlphaStatusBarView(activity, alpha));
-        }
-    }
-
-    private static void hideColorView(final Activity activity) {
-        hideColorView(activity.getWindow());
-    }
-
-    private static void hideAlphaView(final Activity activity) {
-        hideAlphaView(activity.getWindow());
-    }
-
-    private static void hideColorView(final Window window) {
-        ViewGroup decorView = (ViewGroup) window.getDecorView();
-        View fakeStatusBarView = decorView.findViewWithTag(TAG_COLOR);
-        if (fakeStatusBarView == null) return;
-        fakeStatusBarView.setVisibility(View.GONE);
-    }
-
-    private static void hideAlphaView(final Window window) {
-        ViewGroup decorView = (ViewGroup) window.getDecorView();
-        View fakeStatusBarView = decorView.findViewWithTag(TAG_ALPHA);
-        if (fakeStatusBarView == null) return;
-        fakeStatusBarView.setVisibility(View.GONE);
-    }
-
-    private static void showColorView(final Window window) {
-        ViewGroup decorView = (ViewGroup) window.getDecorView();
-        View fakeStatusBarView = decorView.findViewWithTag(TAG_COLOR);
-        if (fakeStatusBarView == null) return;
-        fakeStatusBarView.setVisibility(View.VISIBLE);
-    }
-
-    private static void showAlphaView(final Window window) {
-        ViewGroup decorView = (ViewGroup) window.getDecorView();
-        View fakeStatusBarView = decorView.findViewWithTag(TAG_ALPHA);
-        if (fakeStatusBarView == null) return;
-        fakeStatusBarView.setVisibility(View.VISIBLE);
-    }
-
-    private static int getStatusBarColor(final int color, final int alpha) {
-        if (alpha == 0) return color;
-        float a = 1 - alpha / 255f;
-        int red = (color >> 16) & 0xff;
-        int green = (color >> 8) & 0xff;
-        int blue = color & 0xff;
-        red = (int) (red * a + 0.5);
-        green = (int) (green * a + 0.5);
-        blue = (int) (blue * a + 0.5);
-        return Color.argb(255, red, green, blue);
-    }
-
-    private static View createColorStatusBarView(final Context context,
-                                                 final int color,
-                                                 final int alpha) {
-        View statusBarView = new View(context);
-        statusBarView.setLayoutParams(new LinearLayout.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight()));
-        statusBarView.setBackgroundColor(getStatusBarColor(color, alpha));
-        statusBarView.setTag(TAG_COLOR);
-        return statusBarView;
-    }
-
-    private static View createAlphaStatusBarView(final Context context, final int alpha) {
-        View statusBarView = new View(context);
-        statusBarView.setLayoutParams(new LinearLayout.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight()));
-        statusBarView.setBackgroundColor(Color.argb(alpha, 0, 0, 0));
-        statusBarView.setTag(TAG_ALPHA);
-        return statusBarView;
-    }
-
-    private static void transparentStatusBar(final Activity activity) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
-        Window window = activity.getWindow();
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
-            int option = View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
-            window.getDecorView().setSystemUiVisibility(option);
-            window.setStatusBarColor(Color.TRANSPARENT);
-        } else {
-            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // action bar
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Return the action bar's height.
-     *
-     * @return the action bar's height
-     */
-    public static int getActionBarHeight() {
-        TypedValue tv = new TypedValue();
-        if (Utils.getApp().getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
-            return TypedValue.complexToDimensionPixelSize(
-                    tv.data, Utils.getApp().getResources().getDisplayMetrics()
-            );
-        }
-        return 0;
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // notification bar
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Set the notification bar's visibility.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />}</p>
-     *
-     * @param isVisible True to set notification bar visible, false otherwise.
-     */
-    @RequiresPermission(EXPAND_STATUS_BAR)
-    public static void setNotificationBarVisibility(final boolean isVisible) {
-        String methodName;
-        if (isVisible) {
-            methodName = (Build.VERSION.SDK_INT <= 16) ? "expand" : "expandNotificationsPanel";
-        } else {
-            methodName = (Build.VERSION.SDK_INT <= 16) ? "collapse" : "collapsePanels";
-        }
-        invokePanels(methodName);
-    }
-
-    private static void invokePanels(final String methodName) {
-        try {
-            @SuppressLint("WrongConstant")
-            Object service = Utils.getApp().getSystemService("statusbar");
-            @SuppressLint("PrivateApi")
-            Class<?> statusBarManager = Class.forName("android.app.StatusBarManager");
-            Method expand = statusBarManager.getMethod(methodName);
-            expand.invoke(service);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // navigation bar
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Return the navigation bar's height.
-     *
-     * @return the navigation bar's height
-     */
-    public static int getNavBarHeight() {
-        Resources res = Resources.getSystem();
-        int resourceId = res.getIdentifier("navigation_bar_height", "dimen", "android");
-        if (resourceId != 0) {
-            return res.getDimensionPixelSize(resourceId);
-        } else {
-            return 0;
-        }
-    }
-
-    /**
-     * Set the navigation bar's visibility.
-     *
-     * @param activity  The activity.
-     * @param isVisible True to set navigation bar visible, false otherwise.
-     */
-    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
-    public static void setNavBarVisibility(@NonNull final Activity activity, boolean isVisible) {
-        setNavBarVisibility(activity.getWindow(), isVisible);
-    }
-
-    /**
-     * Set the navigation bar's visibility.
-     *
-     * @param window    The window.
-     * @param isVisible True to set navigation bar visible, false otherwise.
-     */
-    @RequiresApi(Build.VERSION_CODES.KITKAT)
-    public static void setNavBarVisibility(@NonNull final Window window, boolean isVisible) {
-        final int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
-                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
-                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
-        final View decorView = window.getDecorView();
-        if (isVisible) {
-            decorView.setSystemUiVisibility(decorView.getSystemUiVisibility() & ~uiOptions);
-        } else {
-            decorView.setSystemUiVisibility(decorView.getSystemUiVisibility() | uiOptions);
-        }
-    }
-
-    /**
-     * Return whether the navigation bar visible.
-     *
-     * @param activity The activity.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isNavBarVisible(@NonNull final Activity activity) {
-        return isNavBarVisible(activity.getWindow());
-    }
-
-    /**
-     * Return whether the navigation bar visible.
-     *
-     * @param window The window.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isNavBarVisible(@NonNull final Window window) {
-        View decorView = window.getDecorView();
-        int visibility = decorView.getSystemUiVisibility();
-        return (visibility & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;
-    }
-
-    /**
-     * Set the navigation bar's color.
-     *
-     * @param activity The activity.
-     * @param color    The navigation bar's color.
-     */
-    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-    public static void setNavBarColor(@NonNull final Activity activity, @ColorInt final int color) {
-        setNavBarColor(activity.getWindow(), color);
-    }
-
-    /**
-     * Set the navigation bar's color.
-     *
-     * @param window The window.
-     * @param color  The navigation bar's color.
-     */
-    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-    public static void setNavBarColor(@NonNull final Window window, @ColorInt final int color) {
-        window.setNavigationBarColor(color);
-    }
-
-    /**
-     * Return the color of navigation bar.
-     *
-     * @param activity The activity.
-     * @return the color of navigation bar
-     */
-    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-    public static int getNavBarColor(@NonNull final Activity activity) {
-        return getNavBarColor(activity.getWindow());
-    }
-
-    /**
-     * Return the color of navigation bar.
-     *
-     * @param window The window.
-     * @return the color of navigation bar
-     */
-    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-    public static int getNavBarColor(@NonNull final Window window) {
-        return window.getNavigationBarColor();
-    }
-
-    /**
-     * Return whether the navigation bar visible.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isSupportNavBar() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
-            //noinspection ConstantConditions
-            Display display = wm.getDefaultDisplay();
-            Point size = new Point();
-            Point realSize = new Point();
-            display.getSize(size);
-            display.getRealSize(realSize);
-            return realSize.y != size.y || realSize.x != size.x;
-        }
-        boolean menu = ViewConfiguration.get(Utils.getApp()).hasPermanentMenuKey();
-        boolean back = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);
-        return !menu && !back;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/BusUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/BusUtils.java
deleted file mode 100644
index 501f4820e4..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/BusUtils.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.blankj.utilcode.util;
-
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/10/02
- *     desc  : utils about bus, and the site of
- *     https://github.com/Blankj/AndroidUtilCode/utilcode/README-STATIC-BUS.md
- *     will help u.
- * </pre>
- */
-public final class BusUtils {
-
-    public static <T> T post(String name, Object... objects) {
-        if (name == null || name.length() == 0) return null;
-        return null;
-    }
-
-    @Target({ElementType.METHOD})
-    @Retention(RetentionPolicy.CLASS)
-    public @interface Subscribe {
-        String name() default "";
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
deleted file mode 100644
index 8a3df1b398..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CacheDiskUtils.java
+++ /dev/null
@@ -1,1069 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Canvas;
-import android.graphics.PixelFormat;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Parcel;
-import android.os.Parcelable;
-import android.support.annotation.NonNull;
-import android.util.Log;
-
-import com.blankj.utilcode.constant.CacheConstants;
-
-import org.json.JSONArray;
-import org.json.JSONObject;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.FilenameFilter;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.io.RandomAccessFile;
-import java.io.Serializable;
-import java.nio.ByteBuffer;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicLong;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/24
- *     desc  : utils about disk cache
- * </pre>
- */
-public final class CacheDiskUtils implements CacheConstants {
-
-    private static final long   DEFAULT_MAX_SIZE  = Long.MAX_VALUE;
-    private static final int    DEFAULT_MAX_COUNT = Integer.MAX_VALUE;
-    private static final String CACHE_PREFIX      = "cdu";
-
-    private static final Map<String, CacheDiskUtils> CACHE_MAP = new ConcurrentHashMap<>();
-
-    private final String           mCacheKey;
-    private final File             mCacheDir;
-    private final long             mMaxSize;
-    private final int              mMaxCount;
-    private       DiskCacheManager mDiskCacheManager;
-
-    /**
-     * Return the single {@link CacheDiskUtils} instance.
-     * <p>cache directory: /data/data/package/cache/cacheUtils</p>
-     * <p>cache size: unlimited</p>
-     * <p>cache count: unlimited</p>
-     *
-     * @return the single {@link CacheDiskUtils} instance
-     */
-    public static CacheDiskUtils getInstance() {
-        return getInstance("", DEFAULT_MAX_SIZE, DEFAULT_MAX_COUNT);
-    }
-
-    /**
-     * Return the single {@link CacheDiskUtils} instance.
-     * <p>cache directory: /data/data/package/cache/cacheUtils</p>
-     * <p>cache size: unlimited</p>
-     * <p>cache count: unlimited</p>
-     *
-     * @param cacheName The name of cache.
-     * @return the single {@link CacheDiskUtils} instance
-     */
-    public static CacheDiskUtils getInstance(final String cacheName) {
-        return getInstance(cacheName, DEFAULT_MAX_SIZE, DEFAULT_MAX_COUNT);
-    }
-
-    /**
-     * Return the single {@link CacheDiskUtils} instance.
-     * <p>cache directory: /data/data/package/cache/cacheUtils</p>
-     *
-     * @param maxSize  The max size of cache, in bytes.
-     * @param maxCount The max count of cache.
-     * @return the single {@link CacheDiskUtils} instance
-     */
-    public static CacheDiskUtils getInstance(final long maxSize, final int maxCount) {
-        return getInstance("", maxSize, maxCount);
-    }
-
-    /**
-     * Return the single {@link CacheDiskUtils} instance.
-     * <p>cache directory: /data/data/package/cache/cacheName</p>
-     *
-     * @param cacheName The name of cache.
-     * @param maxSize   The max size of cache, in bytes.
-     * @param maxCount  The max count of cache.
-     * @return the single {@link CacheDiskUtils} instance
-     */
-    public static CacheDiskUtils getInstance(String cacheName, final long maxSize, final int maxCount) {
-        if (isSpace(cacheName)) cacheName = "cacheUtils";
-        File file = new File(Utils.getApp().getCacheDir(), cacheName);
-        return getInstance(file, maxSize, maxCount);
-    }
-
-    /**
-     * Return the single {@link CacheDiskUtils} instance.
-     * <p>cache size: unlimited</p>
-     * <p>cache count: unlimited</p>
-     *
-     * @param cacheDir The directory of cache.
-     * @return the single {@link CacheDiskUtils} instance
-     */
-    public static CacheDiskUtils getInstance(@NonNull final File cacheDir) {
-        return getInstance(cacheDir, DEFAULT_MAX_SIZE, DEFAULT_MAX_COUNT);
-    }
-
-    /**
-     * Return the single {@link CacheDiskUtils} instance.
-     *
-     * @param cacheDir The directory of cache.
-     * @param maxSize  The max size of cache, in bytes.
-     * @param maxCount The max count of cache.
-     * @return the single {@link CacheDiskUtils} instance
-     */
-    public static CacheDiskUtils getInstance(@NonNull final File cacheDir,
-                                             final long maxSize,
-                                             final int maxCount) {
-        final String cacheKey = cacheDir.getAbsoluteFile() + "_" + maxSize + "_" + maxCount;
-        CacheDiskUtils cache = CACHE_MAP.get(cacheKey);
-        if (cache == null) {
-            cache = new CacheDiskUtils(cacheKey, cacheDir, maxSize, maxCount);
-            CACHE_MAP.put(cacheKey, cache);
-        }
-        return cache;
-    }
-
-    private CacheDiskUtils(final String cacheKey,
-                           final File cacheDir,
-                           final long maxSize,
-                           final int maxCount) {
-        mCacheKey = cacheKey;
-        mCacheDir = cacheDir;
-        mMaxSize = maxSize;
-        mMaxCount = maxCount;
-    }
-
-    private DiskCacheManager getDiskCacheManager() {
-        if (mCacheDir.exists()) {
-            if (mDiskCacheManager == null) {
-                mDiskCacheManager = new DiskCacheManager(mCacheDir, mMaxSize, mMaxCount);
-            }
-        } else {
-            if (mCacheDir.mkdirs()) {
-                mDiskCacheManager = new DiskCacheManager(mCacheDir, mMaxSize, mMaxCount);
-            } else {
-                Log.e("CacheDiskUtils", "can't make dirs in " + mCacheDir.getAbsolutePath());
-            }
-        }
-        return mDiskCacheManager;
-    }
-
-    @Override
-    public String toString() {
-        return mCacheKey + "@" + Integer.toHexString(hashCode());
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about bytes
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put bytes in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final byte[] value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put bytes in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, byte[] value, final int saveTime) {
-        if (value == null) return;
-        DiskCacheManager diskCacheManager = getDiskCacheManager();
-        if (diskCacheManager == null) return;
-        if (saveTime >= 0) value = DiskCacheHelper.newByteArrayWithTime(saveTime, value);
-        File file = diskCacheManager.getFileBeforePut(key);
-        writeFileFromBytes(file, value);
-        diskCacheManager.updateModify(file);
-        diskCacheManager.put(file);
-    }
-
-    /**
-     * Return the bytes in cache.
-     *
-     * @param key The key of cache.
-     * @return the bytes if cache exists or null otherwise
-     */
-    public byte[] getBytes(@NonNull final String key) {
-        return getBytes(key, null);
-    }
-
-    /**
-     * Return the bytes in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the bytes if cache exists or defaultValue otherwise
-     */
-    public byte[] getBytes(@NonNull final String key, final byte[] defaultValue) {
-        DiskCacheManager diskCacheManager = getDiskCacheManager();
-        if (diskCacheManager == null) return defaultValue;
-        final File file = diskCacheManager.getFileIfExists(key);
-        if (file == null) return defaultValue;
-        byte[] data = readFile2Bytes(file);
-        if (DiskCacheHelper.isDue(data)) {
-            diskCacheManager.removeByKey(key);
-            return defaultValue;
-        }
-        diskCacheManager.updateModify(file);
-        return DiskCacheHelper.getDataWithoutDueTime(data);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about String
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put string value in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final String value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put string value in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, final String value, final int saveTime) {
-        put(key, string2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the string value in cache.
-     *
-     * @param key The key of cache.
-     * @return the string value if cache exists or null otherwise
-     */
-    public String getString(@NonNull final String key) {
-        return getString(key, null);
-    }
-
-    /**
-     * Return the string value in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the string value if cache exists or defaultValue otherwise
-     */
-    public String getString(@NonNull final String key, final String defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2String(bytes);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about JSONObject
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put JSONObject in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final JSONObject value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put JSONObject in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key,
-                    final JSONObject value,
-                    final int saveTime) {
-        put(key, jsonObject2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the JSONObject in cache.
-     *
-     * @param key The key of cache.
-     * @return the JSONObject if cache exists or null otherwise
-     */
-    public JSONObject getJSONObject(@NonNull final String key) {
-        return getJSONObject(key, null);
-    }
-
-    /**
-     * Return the JSONObject in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the JSONObject if cache exists or defaultValue otherwise
-     */
-    public JSONObject getJSONObject(@NonNull final String key, final JSONObject defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2JSONObject(bytes);
-    }
-
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about JSONArray
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put JSONArray in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final JSONArray value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put JSONArray in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, final JSONArray value, final int saveTime) {
-        put(key, jsonArray2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the JSONArray in cache.
-     *
-     * @param key The key of cache.
-     * @return the JSONArray if cache exists or null otherwise
-     */
-    public JSONArray getJSONArray(@NonNull final String key) {
-        return getJSONArray(key, null);
-    }
-
-    /**
-     * Return the JSONArray in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the JSONArray if cache exists or defaultValue otherwise
-     */
-    public JSONArray getJSONArray(@NonNull final String key, final JSONArray defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2JSONArray(bytes);
-    }
-
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about Bitmap
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put bitmap in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final Bitmap value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put bitmap in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, final Bitmap value, final int saveTime) {
-        put(key, bitmap2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the bitmap in cache.
-     *
-     * @param key The key of cache.
-     * @return the bitmap if cache exists or null otherwise
-     */
-    public Bitmap getBitmap(@NonNull final String key) {
-        return getBitmap(key, null);
-    }
-
-    /**
-     * Return the bitmap in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the bitmap if cache exists or defaultValue otherwise
-     */
-    public Bitmap getBitmap(@NonNull final String key, final Bitmap defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2Bitmap(bytes);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about Drawable
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put drawable in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final Drawable value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put drawable in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, final Drawable value, final int saveTime) {
-        put(key, drawable2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the drawable in cache.
-     *
-     * @param key The key of cache.
-     * @return the drawable if cache exists or null otherwise
-     */
-    public Drawable getDrawable(@NonNull final String key) {
-        return getDrawable(key, null);
-    }
-
-    /**
-     * Return the drawable in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the drawable if cache exists or defaultValue otherwise
-     */
-    public Drawable getDrawable(@NonNull final String key, final Drawable defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2Drawable(bytes);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about Parcelable
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put parcelable in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final Parcelable value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put parcelable in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, final Parcelable value, final int saveTime) {
-        put(key, parcelable2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the parcelable in cache.
-     *
-     * @param key     The key of cache.
-     * @param creator The creator.
-     * @param <T>     The value type.
-     * @return the parcelable if cache exists or null otherwise
-     */
-    public <T> T getParcelable(@NonNull final String key,
-                               @NonNull final Parcelable.Creator<T> creator) {
-        return getParcelable(key, creator, null);
-    }
-
-    /**
-     * Return the parcelable in cache.
-     *
-     * @param key          The key of cache.
-     * @param creator      The creator.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @param <T>          The value type.
-     * @return the parcelable if cache exists or defaultValue otherwise
-     */
-    public <T> T getParcelable(@NonNull final String key,
-                               @NonNull final Parcelable.Creator<T> creator,
-                               final T defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2Parcelable(bytes, creator);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about Serializable
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Put serializable in cache.
-     *
-     * @param key   The key of cache.
-     * @param value The value of cache.
-     */
-    public void put(@NonNull final String key, final Serializable value) {
-        put(key, value, -1);
-    }
-
-    /**
-     * Put serializable in cache.
-     *
-     * @param key      The key of cache.
-     * @param value    The value of cache.
-     * @param saveTime The save time of cache, in seconds.
-     */
-    public void put(@NonNull final String key, final Serializable value, final int saveTime) {
-        put(key, serializable2Bytes(value), saveTime);
-    }
-
-    /**
-     * Return the serializable in cache.
-     *
-     * @param key The key of cache.
-     * @return the bitmap if cache exists or null otherwise
-     */
-    public Object getSerializable(@NonNull final String key) {
-        return getSerializable(key, null);
-    }
-
-    /**
-     * Return the serializable in cache.
-     *
-     * @param key          The key of cache.
-     * @param defaultValue The default value if the cache doesn't exist.
-     * @return the bitmap if cache exists or defaultValue otherwise
-     */
-    public Object getSerializable(@NonNull final String key, final Object defaultValue) {
-        byte[] bytes = getBytes(key);
-        if (bytes == null) return defaultValue;
-        return bytes2Object(getBytes(key));
-    }
-
-    /**
-     * Return the size of cache, in bytes.
-     *
-     * @return the size of cache, in bytes
-     */
-    public long getCacheSize() {
-        DiskCacheManager diskCacheManager = getDiskCacheManager();
-        if (diskCacheManager == null) return 0;
-        return diskCacheManager.getCacheSize();
-    }
-
-    /**
-     * Return the count of cache.
-     *
-     * @return the count of cache
-     */
-    public int getCacheCount() {
-        DiskCacheManager diskCacheManager = getDiskCacheManager();
-        if (diskCacheManager == null) return 0;
-        return diskCacheManager.getCacheCount();
-    }
-
-    /**
-     * Remove the cache by key.
-     *
-     * @param key The key of cache.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public boolean remove(@NonNull final String key) {
-        DiskCacheManager diskCacheManager = getDiskCacheManager();
-        if (diskCacheManager == null) return true;
-        return diskCacheManager.removeByKey(key);
-    }
-
-    /**
-     * Clear all of the cache.
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public boolean clear() {
-        DiskCacheManager diskCacheManager = getDiskCacheManager();
-        if (diskCacheManager == null) return true;
-        return diskCacheManager.clear();
-    }
-
-    private static final class DiskCacheManager {
-        private final AtomicLong      cacheSize;
-        private final AtomicInteger   cacheCount;
-        private final long            sizeLimit;
-        private final int             countLimit;
-        private final Map<File, Long> lastUsageDates
-                = Collections.synchronizedMap(new HashMap<File, Long>());
-        private final File            cacheDir;
-        private final Thread          mThread;
-
-        private DiskCacheManager(final File cacheDir, final long sizeLimit, final int countLimit) {
-            this.cacheDir = cacheDir;
-            this.sizeLimit = sizeLimit;
-            this.countLimit = countLimit;
-            cacheSize = new AtomicLong();
-            cacheCount = new AtomicInteger();
-            mThread = new Thread(new Runnable() {
-                @Override
-                public void run() {
-                    int size = 0;
-                    int count = 0;
-                    final File[] cachedFiles = cacheDir.listFiles(new FilenameFilter() {
-                        @Override
-                        public boolean accept(File dir, String name) {
-                            return name.startsWith(CACHE_PREFIX);
-                        }
-                    });
-                    if (cachedFiles != null) {
-                        for (File cachedFile : cachedFiles) {
-                            size += cachedFile.length();
-                            count += 1;
-                            lastUsageDates.put(cachedFile, cachedFile.lastModified());
-                        }
-                        cacheSize.getAndAdd(size);
-                        cacheCount.getAndAdd(count);
-                    }
-                }
-            });
-            mThread.start();
-        }
-
-        private long getCacheSize() {
-            try {
-                mThread.join();
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-            return cacheSize.get();
-        }
-
-        private int getCacheCount() {
-            try {
-                mThread.join();
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-            return cacheCount.get();
-        }
-
-        private File getFileBeforePut(final String key) {
-            File file = new File(cacheDir, CACHE_PREFIX + String.valueOf(key.hashCode()));
-            if (file.exists()) {
-                cacheCount.addAndGet(-1);
-                cacheSize.addAndGet(-file.length());
-            }
-            return file;
-        }
-
-        private File getFileIfExists(final String key) {
-            File file = new File(cacheDir, CACHE_PREFIX + String.valueOf(key.hashCode()));
-            if (!file.exists()) return null;
-            return file;
-        }
-
-        private void put(final File file) {
-            cacheCount.addAndGet(1);
-            cacheSize.addAndGet(file.length());
-            while (cacheCount.get() > countLimit || cacheSize.get() > sizeLimit) {
-                cacheSize.addAndGet(-removeOldest());
-                cacheCount.addAndGet(-1);
-            }
-        }
-
-        private void updateModify(final File file) {
-            Long millis = System.currentTimeMillis();
-            file.setLastModified(millis);
-            lastUsageDates.put(file, millis);
-        }
-
-        private boolean removeByKey(final String key) {
-            File file = getFileIfExists(key);
-            if (file == null) return true;
-            if (!file.delete()) return false;
-            cacheSize.addAndGet(-file.length());
-            cacheCount.addAndGet(-1);
-            lastUsageDates.remove(file);
-            return true;
-        }
-
-        private boolean clear() {
-            File[] files = cacheDir.listFiles(new FilenameFilter() {
-                @Override
-                public boolean accept(File dir, String name) {
-                    return name.startsWith(CACHE_PREFIX);
-                }
-            });
-            if (files == null || files.length <= 0) return true;
-            boolean flag = true;
-            for (File file : files) {
-                if (!file.delete()) {
-                    flag = false;
-                    continue;
-                }
-                cacheSize.addAndGet(-file.length());
-                cacheCount.addAndGet(-1);
-                lastUsageDates.remove(file);
-            }
-            if (flag) {
-                lastUsageDates.clear();
-                cacheSize.set(0);
-                cacheCount.set(0);
-            }
-            return flag;
-        }
-
-        /**
-         * Remove the oldest files.
-         *
-         * @return the size of oldest files, in bytes
-         */
-        private long removeOldest() {
-            if (lastUsageDates.isEmpty()) return 0;
-            Long oldestUsage = Long.MAX_VALUE;
-            File oldestFile = null;
-            Set<Map.Entry<File, Long>> entries = lastUsageDates.entrySet();
-            synchronized (lastUsageDates) {
-                for (Map.Entry<File, Long> entry : entries) {
-                    Long lastValueUsage = entry.getValue();
-                    if (lastValueUsage < oldestUsage) {
-                        oldestUsage = lastValueUsage;
-                        oldestFile = entry.getKey();
-                    }
-                }
-            }
-            if (oldestFile == null) return 0;
-            long fileSize = oldestFile.length();
-            if (oldestFile.delete()) {
-                lastUsageDates.remove(oldestFile);
-                return fileSize;
-            }
-            return 0;
-        }
-    }
-
-    private static final class DiskCacheHelper {
-
-        static final int TIME_INFO_LEN = 14;
-
-        private static byte[] newByteArrayWithTime(final int second, final byte[] data) {
-            byte[] time = createDueTime(second).getBytes();
-            byte[] content = new byte[time.length + data.length];
-            System.arraycopy(time, 0, content, 0, time.length);
-            System.arraycopy(data, 0, content, time.length, data.length);
-            return content;
-        }
-
-        /**
-         * Return the string of due time.
-         *
-         * @param seconds The seconds.
-         * @return the string of due time
-         */
-        private static String createDueTime(final int seconds) {
-            return String.format(
-                    Locale.getDefault(), "_$%010d$_",
-                    System.currentTimeMillis() / 1000 + seconds
-            );
-        }
-
-        private static boolean isDue(final byte[] data) {
-            long millis = getDueTime(data);
-            return millis != -1 && System.currentTimeMillis() > millis;
-        }
-
-        private static long getDueTime(final byte[] data) {
-            if (hasTimeInfo(data)) {
-                String millis = new String(copyOfRange(data, 2, 12));
-                try {
-                    return Long.parseLong(millis) * 1000;
-                } catch (NumberFormatException e) {
-                    return -1;
-                }
-            }
-            return -1;
-        }
-
-        private static byte[] getDataWithoutDueTime(final byte[] data) {
-            if (hasTimeInfo(data)) {
-                return copyOfRange(data, TIME_INFO_LEN, data.length);
-            }
-            return data;
-        }
-
-        private static byte[] copyOfRange(final byte[] original, final int from, final int to) {
-            int newLength = to - from;
-            if (newLength < 0) throw new IllegalArgumentException(from + " > " + to);
-            byte[] copy = new byte[newLength];
-            System.arraycopy(original, from, copy, 0, Math.min(original.length - from, newLength));
-            return copy;
-        }
-
-        private static boolean hasTimeInfo(final byte[] data) {
-            return data != null
-                    && data.length >= TIME_INFO_LEN
-                    && data[0] == '_'
-                    && data[1] == '$'
-                    && data[12] == '$'
-                    && data[13] == '_';
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static byte[] string2Bytes(final String string) {
-        if (string == null) return null;
-        return string.getBytes();
-    }
-
-    private static String bytes2String(final byte[] bytes) {
-        if (bytes == null) return null;
-        return new String(bytes);
-    }
-
-    private static byte[] jsonObject2Bytes(final JSONObject jsonObject) {
-        if (jsonObject == null) return null;
-        return jsonObject.toString().getBytes();
-    }
-
-    private static JSONObject bytes2JSONObject(final byte[] bytes) {
-        if (bytes == null) return null;
-        try {
-            return new JSONObject(new String(bytes));
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    private static byte[] jsonArray2Bytes(final JSONArray jsonArray) {
-        if (jsonArray == null) return null;
-        return jsonArray.toString().getBytes();
-    }
-
-    private static JSONArray bytes2JSONArray(final byte[] bytes) {
-        if (bytes == null) return null;
-        try {
-            return new JSONArray(new String(bytes));
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    private static byte[] parcelable2Bytes(final Parcelable parcelable) {
-        if (parcelable == null) return null;
-        Parcel parcel = Parcel.obtain();
-        parcelable.writeToParcel(parcel, 0);
-        byte[] bytes = parcel.marshall();
-        parcel.recycle();
-        return bytes;
-    }
-
-    private static <T> T bytes2Parcelable(final byte[] bytes,
-                                          final Parcelable.Creator<T> creator) {
-        if (bytes == null) return null;
-        Parcel parcel = Parcel.obtain();
-        parcel.unmarshall(bytes, 0, bytes.length);
-        parcel.setDataPosition(0);
-        T result = creator.createFromParcel(parcel);
-        parcel.recycle();
-        return result;
-    }
-
-    private static byte[] serializable2Bytes(final Serializable serializable) {
-        if (serializable == null) return null;
-        ByteArrayOutputStream baos;
-        ObjectOutputStream oos = null;
-        try {
-            oos = new ObjectOutputStream(baos = new ByteArrayOutputStream());
-            oos.writeObject(serializable);
-            return baos.toByteArray();
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (oos != null) {
-                    oos.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static Object bytes2Object(final byte[] bytes) {
-        if (bytes == null) return null;
-        ObjectInputStream ois = null;
-        try {
-            ois = new ObjectInputStream(new ByteArrayInputStream(bytes));
-            return ois.readObject();
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (ois != null) {
-                    ois.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static byte[] bitmap2Bytes(final Bitmap bitmap) {
-        if (bitmap == null) return null;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
-        return baos.toByteArray();
-    }
-
-    private static Bitmap bytes2Bitmap(final byte[] bytes) {
-        return (bytes == null || bytes.length <= 0)
-                ? null
-                : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
-    }
-
-    private static byte[] drawable2Bytes(final Drawable drawable) {
-        return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable));
-    }
-
-    private static Drawable bytes2Drawable(final byte[] bytes) {
-        return bytes == null ? null : bitmap2Drawable(bytes2Bitmap(bytes));
-    }
-
-    private static Bitmap drawable2Bitmap(final Drawable drawable) {
-        if (drawable instanceof BitmapDrawable) {
-            BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
-            if (bitmapDrawable.getBitmap() != null) {
-                return bitmapDrawable.getBitmap();
-            }
-        }
-        Bitmap bitmap;
-        if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
-            bitmap = Bitmap.createBitmap(
-                    1,
-                    1,
-                    drawable.getOpacity() != PixelFormat.OPAQUE
-                            ? Bitmap.Config.ARGB_8888
-                            : Bitmap.Config.RGB_565
-            );
-        } else {
-            bitmap = Bitmap.createBitmap(
-                    drawable.getIntrinsicWidth(),
-                    drawable.getIntrinsicHeight(),
-                    drawable.getOpacity() != PixelFormat.OPAQUE
-                            ? Bitmap.Config.ARGB_8888
-                            : Bitmap.Config.RGB_565
-            );
-        }
-        Canvas canvas = new Canvas(bitmap);
-        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
-        drawable.draw(canvas);
-        return bitmap;
-    }
-
-    private static Drawable bitmap2Drawable(final Bitmap bitmap) {
-        return bitmap == null
-                ? null
-                : new BitmapDrawable(Utils.getApp().getResources(), bitmap);
-    }
-
-
-    private static void writeFileFromBytes(final File file, final byte[] bytes) {
-        FileChannel fc = null;
-        try {
-            fc = new FileOutputStream(file, false).getChannel();
-            fc.write(ByteBuffer.wrap(bytes));
-            fc.force(true);
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (fc != null) {
-                    fc.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static byte[] readFile2Bytes(final File file) {
-        FileChannel fc = null;
-        try {
-            fc = new RandomAccessFile(file, "r").getChannel();
-            int size = (int) fc.size();
-            MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, size).load();
-            byte[] data = new byte[size];
-            mbb.get(data, 0, size);
-            return data;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (fc != null) {
-                    fc.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CleanUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/CleanUtils.java
deleted file mode 100644
index 2af0f22310..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CleanUtils.java
+++ /dev/null
@@ -1,162 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.os.Environment;
-
-import java.io.File;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : utils about clean
- * </pre>
- */
-public final class CleanUtils {
-
-    private CleanUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Clean the internal cache.
-     * <p>directory: /data/data/package/cache</p>
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanInternalCache() {
-        return deleteFilesInDir(Utils.getApp().getCacheDir());
-    }
-
-    /**
-     * Clean the internal files.
-     * <p>directory: /data/data/package/files</p>
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanInternalFiles() {
-        return deleteFilesInDir(Utils.getApp().getFilesDir());
-    }
-
-    /**
-     * Clean the internal databases.
-     * <p>directory: /data/data/package/databases</p>
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanInternalDbs() {
-        return deleteFilesInDir(new File(Utils.getApp().getFilesDir().getParent(), "databases"));
-    }
-
-    /**
-     * Clean the internal database by name.
-     * <p>directory: /data/data/package/databases/dbName</p>
-     *
-     * @param dbName The name of database.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanInternalDbByName(final String dbName) {
-        return Utils.getApp().deleteDatabase(dbName);
-    }
-
-    /**
-     * Clean the internal shared preferences.
-     * <p>directory: /data/data/package/shared_prefs</p>
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanInternalSp() {
-        return deleteFilesInDir(new File(Utils.getApp().getFilesDir().getParent(), "shared_prefs"));
-    }
-
-    /**
-     * Clean the external cache.
-     * <p>directory: /storage/emulated/0/android/data/package/cache</p>
-     *
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanExternalCache() {
-        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
-                && deleteFilesInDir(Utils.getApp().getExternalCacheDir());
-    }
-
-    /**
-     * Clean the custom directory.
-     *
-     * @param dirPath The path of directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanCustomDir(final String dirPath) {
-        return deleteFilesInDir(dirPath);
-    }
-
-    /**
-     * Clean the custom directory.
-     *
-     * @param dir The directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean cleanCustomDir(final File dir) {
-        return deleteFilesInDir(dir);
-    }
-
-    public static boolean deleteFilesInDir(final String dirPath) {
-        return deleteFilesInDir(getFileByPath(dirPath));
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static boolean deleteFilesInDir(final File dir) {
-        if (dir == null) return false;
-        // dir doesn't exist then return true
-        if (!dir.exists()) return true;
-        // dir isn't a directory then return false
-        if (!dir.isDirectory()) return false;
-        File[] files = dir.listFiles();
-        if (files != null && files.length != 0) {
-            for (File file : files) {
-                if (file.isFile()) {
-                    if (!file.delete()) return false;
-                } else if (file.isDirectory()) {
-                    if (!deleteDir(file)) return false;
-                }
-            }
-        }
-        return true;
-    }
-
-    private static boolean deleteDir(final File dir) {
-        if (dir == null) return false;
-        // dir doesn't exist then return true
-        if (!dir.exists()) return true;
-        // dir isn't a directory then return false
-        if (!dir.isDirectory()) return false;
-        File[] files = dir.listFiles();
-        if (files != null && files.length != 0) {
-            for (File file : files) {
-                if (file.isFile()) {
-                    if (!file.delete()) return false;
-                } else if (file.isDirectory()) {
-                    if (!deleteDir(file)) return false;
-                }
-            }
-        }
-        return dir.delete();
-    }
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ConvertUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
deleted file mode 100644
index 257f6d22a8..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ConvertUtils.java
+++ /dev/null
@@ -1,631 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.PixelFormat;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.view.View;
-
-import com.blankj.utilcode.constant.MemoryConstants;
-import com.blankj.utilcode.constant.TimeConstants;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/13
- *     desc  : utils about convert
- * </pre>
- */
-public final class ConvertUtils {
-
-    private ConvertUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    private static final char hexDigits[] =
-            {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-
-    /**
-     * Bytes to bits.
-     *
-     * @param bytes The bytes.
-     * @return bits
-     */
-    public static String bytes2Bits(final byte[] bytes) {
-        if (bytes == null || bytes.length == 0) return "";
-        StringBuilder sb = new StringBuilder();
-        for (byte aByte : bytes) {
-            for (int j = 7; j >= 0; --j) {
-                sb.append(((aByte >> j) & 0x01) == 0 ? '0' : '1');
-            }
-        }
-        return sb.toString();
-    }
-
-    /**
-     * Bits to bytes.
-     *
-     * @param bits The bits.
-     * @return bytes
-     */
-    public static byte[] bits2Bytes(String bits) {
-        int lenMod = bits.length() % 8;
-        int byteLen = bits.length() / 8;
-        // add "0" until length to 8 times
-        if (lenMod != 0) {
-            for (int i = lenMod; i < 8; i++) {
-                bits = "0" + bits;
-            }
-            byteLen++;
-        }
-        byte[] bytes = new byte[byteLen];
-        for (int i = 0; i < byteLen; ++i) {
-            for (int j = 0; j < 8; ++j) {
-                bytes[i] <<= 1;
-                bytes[i] |= bits.charAt(i * 8 + j) - '0';
-            }
-        }
-        return bytes;
-    }
-
-    /**
-     * Bytes to chars.
-     *
-     * @param bytes The bytes.
-     * @return chars
-     */
-    public static char[] bytes2Chars(final byte[] bytes) {
-        if (bytes == null) return null;
-        int len = bytes.length;
-        if (len <= 0) return null;
-        char[] chars = new char[len];
-        for (int i = 0; i < len; i++) {
-            chars[i] = (char) (bytes[i] & 0xff);
-        }
-        return chars;
-    }
-
-    /**
-     * Chars to bytes.
-     *
-     * @param chars The chars.
-     * @return bytes
-     */
-    public static byte[] chars2Bytes(final char[] chars) {
-        if (chars == null || chars.length <= 0) return null;
-        int len = chars.length;
-        byte[] bytes = new byte[len];
-        for (int i = 0; i < len; i++) {
-            bytes[i] = (byte) (chars[i]);
-        }
-        return bytes;
-    }
-
-    /**
-     * Bytes to hex string.
-     * <p>e.g. bytes2HexString(new byte[] { 0, (byte) 0xa8 }) returns "00A8"</p>
-     *
-     * @param bytes The bytes.
-     * @return hex string
-     */
-    public static String bytes2HexString(final byte[] bytes) {
-        if (bytes == null) return "";
-        int len = bytes.length;
-        if (len <= 0) return "";
-        char[] ret = new char[len << 1];
-        for (int i = 0, j = 0; i < len; i++) {
-            ret[j++] = hexDigits[bytes[i] >> 4 & 0x0f];
-            ret[j++] = hexDigits[bytes[i] & 0x0f];
-        }
-        return new String(ret);
-    }
-
-    /**
-     * Hex string to bytes.
-     * <p>e.g. hexString2Bytes("00A8") returns { 0, (byte) 0xA8 }</p>
-     *
-     * @param hexString The hex string.
-     * @return the bytes
-     */
-    public static byte[] hexString2Bytes(String hexString) {
-        if (isSpace(hexString)) return null;
-        int len = hexString.length();
-        if (len % 2 != 0) {
-            hexString = "0" + hexString;
-            len = len + 1;
-        }
-        char[] hexBytes = hexString.toUpperCase().toCharArray();
-        byte[] ret = new byte[len >> 1];
-        for (int i = 0; i < len; i += 2) {
-            ret[i >> 1] = (byte) (hex2Int(hexBytes[i]) << 4 | hex2Int(hexBytes[i + 1]));
-        }
-        return ret;
-    }
-
-    private static int hex2Int(final char hexChar) {
-        if (hexChar >= '0' && hexChar <= '9') {
-            return hexChar - '0';
-        } else if (hexChar >= 'A' && hexChar <= 'F') {
-            return hexChar - 'A' + 10;
-        } else {
-            throw new IllegalArgumentException();
-        }
-    }
-
-    /**
-     * Size of memory in unit to size of byte.
-     *
-     * @param memorySize Size of memory.
-     * @param unit       The unit of memory size.
-     *                   <ul>
-     *                   <li>{@link MemoryConstants#BYTE}</li>
-     *                   <li>{@link MemoryConstants#KB}</li>
-     *                   <li>{@link MemoryConstants#MB}</li>
-     *                   <li>{@link MemoryConstants#GB}</li>
-     *                   </ul>
-     * @return size of byte
-     */
-    public static long memorySize2Byte(final long memorySize,
-                                       @MemoryConstants.Unit final int unit) {
-        if (memorySize < 0) return -1;
-        return memorySize * unit;
-    }
-
-    /**
-     * Size of byte to size of memory in unit.
-     *
-     * @param byteSize Size of byte.
-     * @param unit     The unit of memory size.
-     *                 <ul>
-     *                 <li>{@link MemoryConstants#BYTE}</li>
-     *                 <li>{@link MemoryConstants#KB}</li>
-     *                 <li>{@link MemoryConstants#MB}</li>
-     *                 <li>{@link MemoryConstants#GB}</li>
-     *                 </ul>
-     * @return size of memory in unit
-     */
-    public static double byte2MemorySize(final long byteSize,
-                                         @MemoryConstants.Unit final int unit) {
-        if (byteSize < 0) return -1;
-        return (double) byteSize / unit;
-    }
-
-    /**
-     * Size of byte to fit size of memory.
-     * <p>to three decimal places</p>
-     *
-     * @param byteSize Size of byte.
-     * @return fit size of memory
-     */
-    @SuppressLint("DefaultLocale")
-    public static String byte2FitMemorySize(final long byteSize) {
-        if (byteSize < 0) {
-            return "shouldn't be less than zero!";
-        } else if (byteSize < MemoryConstants.KB) {
-            return String.format("%.3fB", (double) byteSize);
-        } else if (byteSize < MemoryConstants.MB) {
-            return String.format("%.3fKB", (double) byteSize / MemoryConstants.KB);
-        } else if (byteSize < MemoryConstants.GB) {
-            return String.format("%.3fMB", (double) byteSize / MemoryConstants.MB);
-        } else {
-            return String.format("%.3fGB", (double) byteSize / MemoryConstants.GB);
-        }
-    }
-
-    /**
-     * Time span in unit to milliseconds.
-     *
-     * @param timeSpan The time span.
-     * @param unit     The unit of time span.
-     *                 <ul>
-     *                 <li>{@link TimeConstants#MSEC}</li>
-     *                 <li>{@link TimeConstants#SEC }</li>
-     *                 <li>{@link TimeConstants#MIN }</li>
-     *                 <li>{@link TimeConstants#HOUR}</li>
-     *                 <li>{@link TimeConstants#DAY }</li>
-     *                 </ul>
-     * @return milliseconds
-     */
-    public static long timeSpan2Millis(final long timeSpan, @TimeConstants.Unit final int unit) {
-        return timeSpan * unit;
-    }
-
-    /**
-     * Milliseconds to time span in unit.
-     *
-     * @param millis The milliseconds.
-     * @param unit   The unit of time span.
-     *               <ul>
-     *               <li>{@link TimeConstants#MSEC}</li>
-     *               <li>{@link TimeConstants#SEC }</li>
-     *               <li>{@link TimeConstants#MIN }</li>
-     *               <li>{@link TimeConstants#HOUR}</li>
-     *               <li>{@link TimeConstants#DAY }</li>
-     *               </ul>
-     * @return time span in unit
-     */
-    public static long millis2TimeSpan(final long millis, @TimeConstants.Unit final int unit) {
-        return millis / unit;
-    }
-
-    /**
-     * Milliseconds to fit time span.
-     *
-     * @param millis    The milliseconds.
-     *                  <p>millis &lt;= 0, return null</p>
-     * @param precision The precision of time span.
-     *                  <ul>
-     *                  <li>precision = 0, return null</li>
-     *                  <li>precision = 1, return 天</li>
-     *                  <li>precision = 2, return 天, 小时</li>
-     *                  <li>precision = 3, return 天, 小时, 分钟</li>
-     *                  <li>precision = 4, return 天, 小时, 分钟, 秒</li>
-     *                  <li>precision &gt;= 5，return 天, 小时, 分钟, 秒, 毫秒</li>
-     *                  </ul>
-     * @return fit time span
-     */
-    @SuppressLint("DefaultLocale")
-    public static String millis2FitTimeSpan(long millis, int precision) {
-        if (millis <= 0 || precision <= 0) return null;
-        StringBuilder sb = new StringBuilder();
-        String[] units = {"天", "小时", "分钟", "秒", "毫秒"};
-        int[] unitLen = {86400000, 3600000, 60000, 1000, 1};
-        precision = Math.min(precision, 5);
-        for (int i = 0; i < precision; i++) {
-            if (millis >= unitLen[i]) {
-                long mode = millis / unitLen[i];
-                millis -= mode * unitLen[i];
-                sb.append(mode).append(units[i]);
-            }
-        }
-        return sb.toString();
-    }
-
-    /**
-     * Input stream to output stream.
-     *
-     * @param is The input stream.
-     * @return output stream
-     */
-    public static ByteArrayOutputStream input2OutputStream(final InputStream is) {
-        if (is == null) return null;
-        try {
-            ByteArrayOutputStream os = new ByteArrayOutputStream();
-            byte[] b = new byte[MemoryConstants.KB];
-            int len;
-            while ((len = is.read(b, 0, MemoryConstants.KB)) != -1) {
-                os.write(b, 0, len);
-            }
-            return os;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Output stream to input stream.
-     *
-     * @param out The output stream.
-     * @return input stream
-     */
-    public ByteArrayInputStream output2InputStream(final OutputStream out) {
-        if (out == null) return null;
-        return new ByteArrayInputStream(((ByteArrayOutputStream) out).toByteArray());
-    }
-
-    /**
-     * Input stream to bytes.
-     *
-     * @param is The input stream.
-     * @return bytes
-     */
-    public static byte[] inputStream2Bytes(final InputStream is) {
-        if (is == null) return null;
-        return input2OutputStream(is).toByteArray();
-    }
-
-    /**
-     * Bytes to input stream.
-     *
-     * @param bytes The bytes.
-     * @return input stream
-     */
-    public static InputStream bytes2InputStream(final byte[] bytes) {
-        if (bytes == null || bytes.length <= 0) return null;
-        return new ByteArrayInputStream(bytes);
-    }
-
-    /**
-     * Output stream to bytes.
-     *
-     * @param out The output stream.
-     * @return bytes
-     */
-    public static byte[] outputStream2Bytes(final OutputStream out) {
-        if (out == null) return null;
-        return ((ByteArrayOutputStream) out).toByteArray();
-    }
-
-    /**
-     * Bytes to output stream.
-     *
-     * @param bytes The bytes.
-     * @return output stream
-     */
-    public static OutputStream bytes2OutputStream(final byte[] bytes) {
-        if (bytes == null || bytes.length <= 0) return null;
-        ByteArrayOutputStream os = null;
-        try {
-            os = new ByteArrayOutputStream();
-            os.write(bytes);
-            return os;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Input stream to string.
-     *
-     * @param is          The input stream.
-     * @param charsetName The name of charset.
-     * @return string
-     */
-    public static String inputStream2String(final InputStream is, final String charsetName) {
-        if (is == null || isSpace(charsetName)) return "";
-        try {
-            return new String(inputStream2Bytes(is), charsetName);
-        } catch (UnsupportedEncodingException e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * String to input stream.
-     *
-     * @param string      The string.
-     * @param charsetName The name of charset.
-     * @return input stream
-     */
-    public static InputStream string2InputStream(final String string, final String charsetName) {
-        if (string == null || isSpace(charsetName)) return null;
-        try {
-            return new ByteArrayInputStream(string.getBytes(charsetName));
-        } catch (UnsupportedEncodingException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Output stream to string.
-     *
-     * @param out         The output stream.
-     * @param charsetName The name of charset.
-     * @return string
-     */
-    public static String outputStream2String(final OutputStream out, final String charsetName) {
-        if (out == null || isSpace(charsetName)) return "";
-        try {
-            return new String(outputStream2Bytes(out), charsetName);
-        } catch (UnsupportedEncodingException e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * String to output stream.
-     *
-     * @param string      The string.
-     * @param charsetName The name of charset.
-     * @return output stream
-     */
-    public static OutputStream string2OutputStream(final String string, final String charsetName) {
-        if (string == null || isSpace(charsetName)) return null;
-        try {
-            return bytes2OutputStream(string.getBytes(charsetName));
-        } catch (UnsupportedEncodingException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Bitmap to bytes.
-     *
-     * @param bitmap The bitmap.
-     * @param format The format of bitmap.
-     * @return bytes
-     */
-    public static byte[] bitmap2Bytes(final Bitmap bitmap, final Bitmap.CompressFormat format) {
-        if (bitmap == null) return null;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        bitmap.compress(format, 100, baos);
-        return baos.toByteArray();
-    }
-
-    /**
-     * Bytes to bitmap.
-     *
-     * @param bytes The bytes.
-     * @return bitmap
-     */
-    public static Bitmap bytes2Bitmap(final byte[] bytes) {
-        return (bytes == null || bytes.length == 0)
-                ? null
-                : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
-    }
-
-    /**
-     * Drawable to bitmap.
-     *
-     * @param drawable The drawable.
-     * @return bitmap
-     */
-    public static Bitmap drawable2Bitmap(final Drawable drawable) {
-        if (drawable instanceof BitmapDrawable) {
-            BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
-            if (bitmapDrawable.getBitmap() != null) {
-                return bitmapDrawable.getBitmap();
-            }
-        }
-        Bitmap bitmap;
-        if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
-            bitmap = Bitmap.createBitmap(1, 1,
-                    drawable.getOpacity() != PixelFormat.OPAQUE
-                            ? Bitmap.Config.ARGB_8888
-                            : Bitmap.Config.RGB_565);
-        } else {
-            bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
-                    drawable.getIntrinsicHeight(),
-                    drawable.getOpacity() != PixelFormat.OPAQUE
-                            ? Bitmap.Config.ARGB_8888
-                            : Bitmap.Config.RGB_565);
-        }
-        Canvas canvas = new Canvas(bitmap);
-        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
-        drawable.draw(canvas);
-        return bitmap;
-    }
-
-    /**
-     * Bitmap to drawable.
-     *
-     * @param bitmap The bitmap.
-     * @return drawable
-     */
-    public static Drawable bitmap2Drawable(final Bitmap bitmap) {
-        return bitmap == null ? null : new BitmapDrawable(Utils.getApp().getResources(), bitmap);
-    }
-
-    /**
-     * Drawable to bytes.
-     *
-     * @param drawable The drawable.
-     * @param format   The format of bitmap.
-     * @return bytes
-     */
-    public static byte[] drawable2Bytes(final Drawable drawable,
-                                        final Bitmap.CompressFormat format) {
-        return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable), format);
-    }
-
-    /**
-     * Bytes to drawable.
-     *
-     * @param bytes The bytes.
-     * @return drawable
-     */
-    public static Drawable bytes2Drawable(final byte[] bytes) {
-        return bytes == null ? null : bitmap2Drawable(bytes2Bitmap(bytes));
-    }
-
-    /**
-     * View to bitmap.
-     *
-     * @param view The view.
-     * @return bitmap
-     */
-    public static Bitmap view2Bitmap(final View view) {
-        if (view == null) return null;
-        Bitmap ret =
-                Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
-        Canvas canvas = new Canvas(ret);
-        Drawable bgDrawable = view.getBackground();
-        if (bgDrawable != null) {
-            bgDrawable.draw(canvas);
-        } else {
-            canvas.drawColor(Color.WHITE);
-        }
-        view.draw(canvas);
-        return ret;
-    }
-
-    /**
-     * Value of dp to value of px.
-     *
-     * @param dpValue The value of dp.
-     * @return value of px
-     */
-    public static int dp2px(final float dpValue) {
-        final float scale = Utils.getApp().getResources().getDisplayMetrics().density;
-        return (int) (dpValue * scale + 0.5f);
-    }
-
-    /**
-     * Value of px to value of dp.
-     *
-     * @param pxValue The value of px.
-     * @return value of dp
-     */
-    public static int px2dp(final float pxValue) {
-        final float scale = Utils.getApp().getResources().getDisplayMetrics().density;
-        return (int) (pxValue / scale + 0.5f);
-    }
-
-    /**
-     * Value of sp to value of px.
-     *
-     * @param spValue The value of sp.
-     * @return value of px
-     */
-    public static int sp2px(final float spValue) {
-        final float fontScale = Utils.getApp().getResources().getDisplayMetrics().scaledDensity;
-        return (int) (spValue * fontScale + 0.5f);
-    }
-
-    /**
-     * Value of px to value of sp.
-     *
-     * @param pxValue The value of px.
-     * @return value of sp
-     */
-    public static int px2sp(final float pxValue) {
-        final float fontScale = Utils.getApp().getResources().getDisplayMetrics().scaledDensity;
-        return (int) (pxValue / fontScale + 0.5f);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CrashUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/CrashUtils.java
deleted file mode 100644
index 30fd102a49..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/CrashUtils.java
+++ /dev/null
@@ -1,279 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.os.Build;
-import android.os.Environment;
-import android.support.annotation.NonNull;
-import android.support.annotation.RequiresPermission;
-import android.util.Log;
-
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringWriter;
-import java.lang.Thread.UncaughtExceptionHandler;
-import java.text.Format;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
-
-import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/27
- *     desc  : utils about crash
- * </pre>
- */
-public final class CrashUtils {
-
-    private static String defaultDir;
-    private static String dir;
-    private static String versionName;
-    private static int    versionCode;
-
-    private static final String FILE_SEP = System.getProperty("file.separator");
-    @SuppressLint("SimpleDateFormat")
-    private static final Format FORMAT   = new SimpleDateFormat("MM-dd HH-mm-ss");
-
-    private static final UncaughtExceptionHandler DEFAULT_UNCAUGHT_EXCEPTION_HANDLER;
-    private static final UncaughtExceptionHandler UNCAUGHT_EXCEPTION_HANDLER;
-
-    private static OnCrashListener sOnCrashListener;
-
-    static {
-        try {
-            PackageInfo pi = Utils.getApp()
-                    .getPackageManager()
-                    .getPackageInfo(Utils.getApp().getPackageName(), 0);
-            if (pi != null) {
-                versionName = pi.versionName;
-                versionCode = pi.versionCode;
-            }
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-        }
-        DEFAULT_UNCAUGHT_EXCEPTION_HANDLER = Thread.getDefaultUncaughtExceptionHandler();
-
-        UNCAUGHT_EXCEPTION_HANDLER = new UncaughtExceptionHandler() {
-            @Override
-            public void uncaughtException(final Thread t, final Throwable e) {
-                if (e == null) {
-                    if (DEFAULT_UNCAUGHT_EXCEPTION_HANDLER != null) {
-                        DEFAULT_UNCAUGHT_EXCEPTION_HANDLER.uncaughtException(t, null);
-                    } else {
-                        android.os.Process.killProcess(android.os.Process.myPid());
-                        System.exit(1);
-                    }
-                    return;
-                }
-
-                final String time = FORMAT.format(new Date(System.currentTimeMillis()));
-                final StringBuilder sb = new StringBuilder();
-                final String head = "************* Log Head ****************" +
-                        "\nTime Of Crash      : " + time +
-                        "\nDevice Manufacturer: " + Build.MANUFACTURER +
-                        "\nDevice Model       : " + Build.MODEL +
-                        "\nAndroid Version    : " + Build.VERSION.RELEASE +
-                        "\nAndroid SDK        : " + Build.VERSION.SDK_INT +
-                        "\nApp VersionName    : " + versionName +
-                        "\nApp VersionCode    : " + versionCode +
-                        "\n************* Log Head ****************\n\n";
-                sb.append(head);
-                StringWriter sw = new StringWriter();
-                PrintWriter pw = new PrintWriter(sw);
-                e.printStackTrace(pw);
-                Throwable cause = e.getCause();
-                while (cause != null) {
-                    cause.printStackTrace(pw);
-                    cause = cause.getCause();
-                }
-                pw.flush();
-                sb.append(sw.toString());
-                final String crashInfo = sb.toString();
-                final String fullPath = (dir == null ? defaultDir : dir) + time + ".txt";
-                if (createOrExistsFile(fullPath)) {
-                    input2File(crashInfo, fullPath);
-                } else {
-                    Log.e("CrashUtils", "create " + fullPath + " failed!");
-                }
-
-                if (sOnCrashListener != null) {
-                    sOnCrashListener.onCrash(crashInfo, e);
-                }
-
-                if (DEFAULT_UNCAUGHT_EXCEPTION_HANDLER != null) {
-                    DEFAULT_UNCAUGHT_EXCEPTION_HANDLER.uncaughtException(t, e);
-                }
-            }
-        };
-    }
-
-    private CrashUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Initialization.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />}</p>
-     */
-    @RequiresPermission(WRITE_EXTERNAL_STORAGE)
-    public static void init() {
-        init("");
-    }
-
-    /**
-     * Initialization
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />}</p>
-     *
-     * @param crashDir The directory of saving crash information.
-     */
-    @RequiresPermission(WRITE_EXTERNAL_STORAGE)
-    public static void init(@NonNull final File crashDir) {
-        init(crashDir.getAbsolutePath(), null);
-    }
-
-    /**
-     * Initialization
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />}</p>
-     *
-     * @param crashDirPath The directory's path of saving crash information.
-     */
-    @RequiresPermission(WRITE_EXTERNAL_STORAGE)
-    public static void init(final String crashDirPath) {
-        init(crashDirPath, null);
-    }
-
-    /**
-     * Initialization
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />}</p>
-     *
-     * @param onCrashListener The crash listener.
-     */
-    @RequiresPermission(WRITE_EXTERNAL_STORAGE)
-    public static void init(final OnCrashListener onCrashListener) {
-        init("", onCrashListener);
-    }
-
-    /**
-     * Initialization
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />}</p>
-     *
-     * @param crashDir        The directory of saving crash information.
-     * @param onCrashListener The crash listener.
-     */
-    @RequiresPermission(WRITE_EXTERNAL_STORAGE)
-    public static void init(@NonNull final File crashDir, final OnCrashListener onCrashListener) {
-        init(crashDir.getAbsolutePath(), onCrashListener);
-    }
-
-    /**
-     * Initialization
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />}</p>
-     *
-     * @param crashDirPath    The directory's path of saving crash information.
-     * @param onCrashListener The crash listener.
-     */
-    @RequiresPermission(WRITE_EXTERNAL_STORAGE)
-    public static void init(final String crashDirPath, final OnCrashListener onCrashListener) {
-        if (isSpace(crashDirPath)) {
-            dir = null;
-        } else {
-            dir = crashDirPath.endsWith(FILE_SEP) ? crashDirPath : crashDirPath + FILE_SEP;
-        }
-        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
-                && Utils.getApp().getExternalCacheDir() != null)
-            defaultDir = Utils.getApp().getExternalCacheDir() + FILE_SEP + "crash" + FILE_SEP;
-        else {
-            defaultDir = Utils.getApp().getCacheDir() + FILE_SEP + "crash" + FILE_SEP;
-        }
-        sOnCrashListener = onCrashListener;
-        Thread.setDefaultUncaughtExceptionHandler(UNCAUGHT_EXCEPTION_HANDLER);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // interface
-    ///////////////////////////////////////////////////////////////////////////
-
-    public interface OnCrashListener {
-        void onCrash(String crashInfo, Throwable e);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static void input2File(final String input, final String filePath) {
-        Future<Boolean> submit = Executors.newSingleThreadExecutor().submit(new Callable<Boolean>() {
-            @Override
-            public Boolean call() {
-                BufferedWriter bw = null;
-                try {
-                    bw = new BufferedWriter(new FileWriter(filePath, true));
-                    bw.write(input);
-                    return true;
-                } catch (IOException e) {
-                    e.printStackTrace();
-                    return false;
-                } finally {
-                    try {
-                        if (bw != null) {
-                            bw.close();
-                        }
-                    } catch (IOException e) {
-                        e.printStackTrace();
-                    }
-                }
-            }
-        });
-        try {
-            if (submit.get()) return;
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        } catch (ExecutionException e) {
-            e.printStackTrace();
-        }
-        Log.e("CrashUtils", "write crash info to " + filePath + " failed!");
-    }
-
-    private static boolean createOrExistsFile(final String filePath) {
-        File file = new File(filePath);
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/DeviceUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
deleted file mode 100644
index 0ff75fa6d0..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/DeviceUtils.java
+++ /dev/null
@@ -1,351 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.Intent;
-import android.net.wifi.WifiInfo;
-import android.net.wifi.WifiManager;
-import android.os.Build;
-import android.os.PowerManager;
-import android.provider.Settings;
-import android.support.annotation.RequiresApi;
-import android.support.annotation.RequiresPermission;
-import android.text.TextUtils;
-
-import java.io.File;
-import java.net.InetAddress;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-import java.util.Enumeration;
-
-import static android.Manifest.permission.ACCESS_WIFI_STATE;
-import static android.Manifest.permission.INTERNET;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/8/1
- *     desc  : utils about device
- * </pre>
- */
-public final class DeviceUtils {
-
-    private DeviceUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return whether device is rooted.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isDeviceRooted() {
-        String su = "su";
-        String[] locations = {"/system/bin/", "/system/xbin/", "/sbin/", "/system/sd/xbin/",
-                "/system/bin/failsafe/", "/data/local/xbin/", "/data/local/bin/", "/data/local/"};
-        for (String location : locations) {
-            if (new File(location + su).exists()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Return whether ADB is enabled.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
-    public static boolean isAdbEnabled() {
-        return Settings.Secure.getInt(
-                Utils.getApp().getContentResolver(),
-                Settings.Global.ADB_ENABLED, 0
-        ) > 0;
-    }
-
-    /**
-     * Return the version name of device's system.
-     *
-     * @return the version name of device's system
-     */
-    public static String getSDKVersionName() {
-        return android.os.Build.VERSION.RELEASE;
-    }
-
-    /**
-     * Return version code of device's system.
-     *
-     * @return version code of device's system
-     */
-    public static int getSDKVersionCode() {
-        return android.os.Build.VERSION.SDK_INT;
-    }
-
-    /**
-     * Return the android id of device.
-     *
-     * @return the android id of device
-     */
-    @SuppressLint("HardwareIds")
-    public static String getAndroidID() {
-        String id = Settings.Secure.getString(
-                Utils.getApp().getContentResolver(),
-                Settings.Secure.ANDROID_ID
-        );
-        return id == null ? "" : id;
-    }
-
-    /**
-     * Return the MAC address.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
-     * {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     *
-     * @return the MAC address
-     */
-    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET})
-    public static String getMacAddress() {
-        return getMacAddress((String[]) null);
-    }
-
-    /**
-     * Return the MAC address.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
-     * {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     *
-     * @return the MAC address
-     */
-    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET})
-    public static String getMacAddress(final String... excepts) {
-        String macAddress = getMacAddressByWifiInfo();
-        if (isAddressNotInExcepts(macAddress, excepts)) {
-            return macAddress;
-        }
-        macAddress = getMacAddressByNetworkInterface();
-        if (isAddressNotInExcepts(macAddress, excepts)) {
-            return macAddress;
-        }
-        macAddress = getMacAddressByInetAddress();
-        if (isAddressNotInExcepts(macAddress, excepts)) {
-            return macAddress;
-        }
-        macAddress = getMacAddressByFile();
-        if (isAddressNotInExcepts(macAddress, excepts)) {
-            return macAddress;
-        }
-        return "";
-    }
-
-    private static boolean isAddressNotInExcepts(final String address, final String... excepts) {
-        if (excepts == null || excepts.length == 0) {
-            return !"02:00:00:00:00:00".equals(address);
-        }
-        for (String filter : excepts) {
-            if (address.equals(filter)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    @SuppressLint({"HardwareIds", "MissingPermission", "WifiManagerLeak"})
-    private static String getMacAddressByWifiInfo() {
-        try {
-            WifiManager wifi = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
-            if (wifi != null) {
-                WifiInfo info = wifi.getConnectionInfo();
-                if (info != null) return info.getMacAddress();
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return "02:00:00:00:00:00";
-    }
-
-    private static String getMacAddressByNetworkInterface() {
-        try {
-            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
-            while (nis.hasMoreElements()) {
-                NetworkInterface ni = nis.nextElement();
-                if (ni == null || !ni.getName().equalsIgnoreCase("wlan0")) continue;
-                byte[] macBytes = ni.getHardwareAddress();
-                if (macBytes != null && macBytes.length > 0) {
-                    StringBuilder sb = new StringBuilder();
-                    for (byte b : macBytes) {
-                        sb.append(String.format("%02x:", b));
-                    }
-                    return sb.substring(0, sb.length() - 1);
-                }
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return "02:00:00:00:00:00";
-    }
-
-    private static String getMacAddressByInetAddress() {
-        try {
-            InetAddress inetAddress = getInetAddress();
-            if (inetAddress != null) {
-                NetworkInterface ni = NetworkInterface.getByInetAddress(inetAddress);
-                if (ni != null) {
-                    byte[] macBytes = ni.getHardwareAddress();
-                    if (macBytes != null && macBytes.length > 0) {
-                        StringBuilder sb = new StringBuilder();
-                        for (byte b : macBytes) {
-                            sb.append(String.format("%02x:", b));
-                        }
-                        return sb.substring(0, sb.length() - 1);
-                    }
-                }
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return "02:00:00:00:00:00";
-    }
-
-    private static InetAddress getInetAddress() {
-        try {
-            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
-            while (nis.hasMoreElements()) {
-                NetworkInterface ni = nis.nextElement();
-                // To prevent phone of xiaomi return "10.0.2.15"
-                if (!ni.isUp()) continue;
-                Enumeration<InetAddress> addresses = ni.getInetAddresses();
-                while (addresses.hasMoreElements()) {
-                    InetAddress inetAddress = addresses.nextElement();
-                    if (!inetAddress.isLoopbackAddress()) {
-                        String hostAddress = inetAddress.getHostAddress();
-                        if (hostAddress.indexOf(':') < 0) return inetAddress;
-                    }
-                }
-            }
-        } catch (SocketException e) {
-            e.printStackTrace();
-        }
-        return null;
-    }
-
-    private static String getMacAddressByFile() {
-        ShellUtils.CommandResult result = ShellUtils.execCmd("getprop wifi.interface", false);
-        if (result.result == 0) {
-            String name = result.successMsg;
-            if (name != null) {
-                result = ShellUtils.execCmd("cat /sys/class/net/" + name + "/address", false);
-                if (result.result == 0) {
-                    String address = result.successMsg;
-                    if (address != null && address.length() > 0) {
-                        return address;
-                    }
-                }
-            }
-        }
-        return "02:00:00:00:00:00";
-    }
-
-    /**
-     * Return the manufacturer of the product/hardware.
-     * <p>e.g. Xiaomi</p>
-     *
-     * @return the manufacturer of the product/hardware
-     */
-    public static String getManufacturer() {
-        return Build.MANUFACTURER;
-    }
-
-    /**
-     * Return the model of device.
-     * <p>e.g. MI2SC</p>
-     *
-     * @return the model of device
-     */
-    public static String getModel() {
-        String model = Build.MODEL;
-        if (model != null) {
-            model = model.trim().replaceAll("\\s*", "");
-        } else {
-            model = "";
-        }
-        return model;
-    }
-
-    /**
-     * Return an ordered list of ABIs supported by this device. The most preferred ABI is the first
-     * element in the list.
-     *
-     * @return an ordered list of ABIs supported by this device
-     */
-    public static String[] getABIs() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            return Build.SUPPORTED_ABIS;
-        } else {
-            if (!TextUtils.isEmpty(Build.CPU_ABI2)) {
-                return new String[]{Build.CPU_ABI, Build.CPU_ABI2};
-            }
-            return new String[]{Build.CPU_ABI};
-        }
-    }
-
-    /**
-     * Shutdown the device
-     * <p>Requires root permission
-     * or hold {@code android:sharedUserId="android.uid.system"},
-     * {@code <uses-permission android:name="android.permission.SHUTDOWN/>}
-     * in manifest.</p>
-     */
-    public static void shutdown() {
-        ShellUtils.execCmd("reboot -p", true);
-        Intent intent = new Intent("android.intent.action.ACTION_REQUEST_SHUTDOWN");
-        intent.putExtra("android.intent.extra.KEY_CONFIRM", false);
-        Utils.getApp().startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-    }
-
-    /**
-     * Reboot the device.
-     * <p>Requires root permission
-     * or hold {@code android:sharedUserId="android.uid.system"} in manifest.</p>
-     */
-    public static void reboot() {
-        ShellUtils.execCmd("reboot", true);
-        Intent intent = new Intent(Intent.ACTION_REBOOT);
-        intent.putExtra("nowait", 1);
-        intent.putExtra("interval", 1);
-        intent.putExtra("window", 0);
-        Utils.getApp().sendBroadcast(intent);
-    }
-
-    /**
-     * Reboot the device.
-     * <p>Requires root permission
-     * or hold {@code android:sharedUserId="android.uid.system"},
-     * {@code <uses-permission android:name="android.permission.REBOOT" />}</p>
-     *
-     * @param reason code to pass to the kernel (e.g., "recovery") to
-     *               request special boot modes, or null.
-     */
-    public static void reboot(final String reason) {
-        PowerManager pm = (PowerManager) Utils.getApp().getSystemService(Context.POWER_SERVICE);
-        //noinspection ConstantConditions
-        pm.reboot(reason);
-    }
-
-    /**
-     * Reboot the device to recovery.
-     * <p>Requires root permission.</p>
-     */
-    public static void reboot2Recovery() {
-        ShellUtils.execCmd("reboot recovery", true);
-    }
-
-    /**
-     * Reboot the device to bootloader.
-     * <p>Requires root permission.</p>
-     */
-    public static void reboot2Bootloader() {
-        ShellUtils.execCmd("reboot bootloader", true);
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/FileIOUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
deleted file mode 100644
index 2ce99f3c17..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/FileIOUtils.java
+++ /dev/null
@@ -1,782 +0,0 @@
-package com.blankj.utilcode.util;
-
-import java.io.BufferedOutputStream;
-import java.io.BufferedReader;
-import java.io.BufferedWriter;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.io.RandomAccessFile;
-import java.io.UnsupportedEncodingException;
-import java.nio.ByteBuffer;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/06/22
- *     desc  : utils about file io
- * </pre>
- */
-public final class FileIOUtils {
-
-    private static int sBufferSize = 8192;
-
-    private FileIOUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Write file from input stream.
-     *
-     * @param filePath The path of file.
-     * @param is       The input stream.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromIS(final String filePath, final InputStream is) {
-        return writeFileFromIS(getFileByPath(filePath), is, false);
-    }
-
-    /**
-     * Write file from input stream.
-     *
-     * @param filePath The path of file.
-     * @param is       The input stream.
-     * @param append   True to append, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromIS(final String filePath,
-                                          final InputStream is,
-                                          final boolean append) {
-        return writeFileFromIS(getFileByPath(filePath), is, append);
-    }
-
-    /**
-     * Write file from input stream.
-     *
-     * @param file The file.
-     * @param is   The input stream.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromIS(final File file, final InputStream is) {
-        return writeFileFromIS(file, is, false);
-    }
-
-    /**
-     * Write file from input stream.
-     *
-     * @param file   The file.
-     * @param is     The input stream.
-     * @param append True to append, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromIS(final File file,
-                                          final InputStream is,
-                                          final boolean append) {
-        if (!createOrExistsFile(file) || is == null) return false;
-        OutputStream os = null;
-        try {
-            os = new BufferedOutputStream(new FileOutputStream(file, append));
-            byte data[] = new byte[sBufferSize];
-            int len;
-            while ((len = is.read(data, 0, sBufferSize)) != -1) {
-                os.write(data, 0, len);
-            }
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Write file from bytes by stream.
-     *
-     * @param filePath The path of file.
-     * @param bytes    The bytes.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByStream(final String filePath, final byte[] bytes) {
-        return writeFileFromBytesByStream(getFileByPath(filePath), bytes, false);
-    }
-
-    /**
-     * Write file from bytes by stream.
-     *
-     * @param filePath The path of file.
-     * @param bytes    The bytes.
-     * @param append   True to append, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByStream(final String filePath,
-                                                     final byte[] bytes,
-                                                     final boolean append) {
-        return writeFileFromBytesByStream(getFileByPath(filePath), bytes, append);
-    }
-
-    /**
-     * Write file from bytes by stream.
-     *
-     * @param file  The file.
-     * @param bytes The bytes.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByStream(final File file, final byte[] bytes) {
-        return writeFileFromBytesByStream(file, bytes, false);
-    }
-
-    /**
-     * Write file from bytes by stream.
-     *
-     * @param file   The file.
-     * @param bytes  The bytes.
-     * @param append True to append, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByStream(final File file,
-                                                     final byte[] bytes,
-                                                     final boolean append) {
-        if (bytes == null || !createOrExistsFile(file)) return false;
-        BufferedOutputStream bos = null;
-        try {
-            bos = new BufferedOutputStream(new FileOutputStream(file, append));
-            bos.write(bytes);
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                if (bos != null) {
-                    bos.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Write file from bytes by channel.
-     *
-     * @param filePath The path of file.
-     * @param bytes    The bytes.
-     * @param isForce  是否写入文件
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByChannel(final String filePath,
-                                                      final byte[] bytes,
-                                                      final boolean isForce) {
-        return writeFileFromBytesByChannel(getFileByPath(filePath), bytes, false, isForce);
-    }
-
-    /**
-     * Write file from bytes by channel.
-     *
-     * @param filePath The path of file.
-     * @param bytes    The bytes.
-     * @param append   True to append, false otherwise.
-     * @param isForce  True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByChannel(final String filePath,
-                                                      final byte[] bytes,
-                                                      final boolean append,
-                                                      final boolean isForce) {
-        return writeFileFromBytesByChannel(getFileByPath(filePath), bytes, append, isForce);
-    }
-
-    /**
-     * Write file from bytes by channel.
-     *
-     * @param file    The file.
-     * @param bytes   The bytes.
-     * @param isForce True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByChannel(final File file,
-                                                      final byte[] bytes,
-                                                      final boolean isForce) {
-        return writeFileFromBytesByChannel(file, bytes, false, isForce);
-    }
-
-    /**
-     * Write file from bytes by channel.
-     *
-     * @param file    The file.
-     * @param bytes   The bytes.
-     * @param append  True to append, false otherwise.
-     * @param isForce True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByChannel(final File file,
-                                                      final byte[] bytes,
-                                                      final boolean append,
-                                                      final boolean isForce) {
-        if (bytes == null) return false;
-        FileChannel fc = null;
-        try {
-            fc = new FileOutputStream(file, append).getChannel();
-            fc.position(fc.size());
-            fc.write(ByteBuffer.wrap(bytes));
-            if (isForce) fc.force(true);
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                if (fc != null) {
-                    fc.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Write file from bytes by map.
-     *
-     * @param filePath The path of file.
-     * @param bytes    The bytes.
-     * @param isForce  True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByMap(final String filePath,
-                                                  final byte[] bytes,
-                                                  final boolean isForce) {
-        return writeFileFromBytesByMap(filePath, bytes, false, isForce);
-    }
-
-    /**
-     * Write file from bytes by map.
-     *
-     * @param filePath The path of file.
-     * @param bytes    The bytes.
-     * @param append   True to append, false otherwise.
-     * @param isForce  True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByMap(final String filePath,
-                                                  final byte[] bytes,
-                                                  final boolean append,
-                                                  final boolean isForce) {
-        return writeFileFromBytesByMap(getFileByPath(filePath), bytes, append, isForce);
-    }
-
-    /**
-     * Write file from bytes by map.
-     *
-     * @param file    The file.
-     * @param bytes   The bytes.
-     * @param isForce True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByMap(final File file,
-                                                  final byte[] bytes,
-                                                  final boolean isForce) {
-        return writeFileFromBytesByMap(file, bytes, false, isForce);
-    }
-
-    /**
-     * Write file from bytes by map.
-     *
-     * @param file    The file.
-     * @param bytes   The bytes.
-     * @param append  True to append, false otherwise.
-     * @param isForce True to force write file, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromBytesByMap(final File file,
-                                                  final byte[] bytes,
-                                                  final boolean append,
-                                                  final boolean isForce) {
-        if (bytes == null || !createOrExistsFile(file)) return false;
-        FileChannel fc = null;
-        try {
-            fc = new FileOutputStream(file, append).getChannel();
-            MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_WRITE, fc.size(), bytes.length);
-            mbb.put(bytes);
-            if (isForce) mbb.force();
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                if (fc != null) {
-                    fc.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Write file from string.
-     *
-     * @param filePath The path of file.
-     * @param content  The string of content.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromString(final String filePath, final String content) {
-        return writeFileFromString(getFileByPath(filePath), content, false);
-    }
-
-    /**
-     * Write file from string.
-     *
-     * @param filePath The path of file.
-     * @param content  The string of content.
-     * @param append   True to append, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromString(final String filePath,
-                                              final String content,
-                                              final boolean append) {
-        return writeFileFromString(getFileByPath(filePath), content, append);
-    }
-
-    /**
-     * Write file from string.
-     *
-     * @param file    The file.
-     * @param content The string of content.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromString(final File file, final String content) {
-        return writeFileFromString(file, content, false);
-    }
-
-    /**
-     * Write file from string.
-     *
-     * @param file    The file.
-     * @param content The string of content.
-     * @param append  True to append, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean writeFileFromString(final File file,
-                                              final String content,
-                                              final boolean append) {
-        if (file == null || content == null) return false;
-        if (!createOrExistsFile(file)) return false;
-        BufferedWriter bw = null;
-        try {
-            bw = new BufferedWriter(new FileWriter(file, append));
-            bw.write(content);
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                if (bw != null) {
-                    bw.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // the divide line of write and read
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Return the lines in file.
-     *
-     * @param filePath The path of file.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final String filePath) {
-        return readFile2List(getFileByPath(filePath), null);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param filePath    The path of file.
-     * @param charsetName The name of charset.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final String filePath, final String charsetName) {
-        return readFile2List(getFileByPath(filePath), charsetName);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param file The file.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final File file) {
-        return readFile2List(file, 0, 0x7FFFFFFF, null);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param file        The file.
-     * @param charsetName The name of charset.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final File file, final String charsetName) {
-        return readFile2List(file, 0, 0x7FFFFFFF, charsetName);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param filePath The path of file.
-     * @param st       The line's index of start.
-     * @param end      The line's index of end.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final String filePath, final int st, final int end) {
-        return readFile2List(getFileByPath(filePath), st, end, null);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param filePath    The path of file.
-     * @param st          The line's index of start.
-     * @param end         The line's index of end.
-     * @param charsetName The name of charset.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final String filePath,
-                                             final int st,
-                                             final int end,
-                                             final String charsetName) {
-        return readFile2List(getFileByPath(filePath), st, end, charsetName);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param file The file.
-     * @param st   The line's index of start.
-     * @param end  The line's index of end.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final File file, final int st, final int end) {
-        return readFile2List(file, st, end, null);
-    }
-
-    /**
-     * Return the lines in file.
-     *
-     * @param file        The file.
-     * @param st          The line's index of start.
-     * @param end         The line's index of end.
-     * @param charsetName The name of charset.
-     * @return the lines in file
-     */
-    public static List<String> readFile2List(final File file,
-                                             final int st,
-                                             final int end,
-                                             final String charsetName) {
-        if (!isFileExists(file)) return null;
-        if (st > end) return null;
-        BufferedReader reader = null;
-        try {
-            String line;
-            int curLine = 1;
-            List<String> list = new ArrayList<>();
-            if (isSpace(charsetName)) {
-                reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
-            } else {
-                reader = new BufferedReader(
-                        new InputStreamReader(new FileInputStream(file), charsetName)
-                );
-            }
-            while ((line = reader.readLine()) != null) {
-                if (curLine > end) break;
-                if (st <= curLine && curLine <= end) list.add(line);
-                ++curLine;
-            }
-            return list;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (reader != null) {
-                    reader.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Return the string in file.
-     *
-     * @param filePath The path of file.
-     * @return the string in file
-     */
-    public static String readFile2String(final String filePath) {
-        return readFile2String(getFileByPath(filePath), null);
-    }
-
-    /**
-     * Return the string in file.
-     *
-     * @param filePath    The path of file.
-     * @param charsetName The name of charset.
-     * @return the string in file
-     */
-    public static String readFile2String(final String filePath, final String charsetName) {
-        return readFile2String(getFileByPath(filePath), charsetName);
-    }
-
-    /**
-     * Return the string in file.
-     *
-     * @param file The file.
-     * @return the string in file
-     */
-    public static String readFile2String(final File file) {
-        return readFile2String(file, null);
-    }
-
-    /**
-     * Return the string in file.
-     *
-     * @param file        The file.
-     * @param charsetName The name of charset.
-     * @return the string in file
-     */
-    public static String readFile2String(final File file, final String charsetName) {
-        byte[] bytes = readFile2BytesByStream(file);
-        if (bytes == null) return null;
-        if (isSpace(charsetName)) {
-            return new String(bytes);
-        } else {
-            try {
-                return new String(bytes, charsetName);
-            } catch (UnsupportedEncodingException e) {
-                e.printStackTrace();
-                return "";
-            }
-        }
-    }
-
-    /**
-     * Return the bytes in file by stream.
-     *
-     * @param filePath The path of file.
-     * @return the bytes in file
-     */
-    public static byte[] readFile2BytesByStream(final String filePath) {
-        return readFile2BytesByStream(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the bytes in file by stream.
-     *
-     * @param file The file.
-     * @return the bytes in file
-     */
-    public static byte[] readFile2BytesByStream(final File file) {
-        if (!isFileExists(file)) return null;
-        try {
-            return is2Bytes(new FileInputStream(file));
-        } catch (FileNotFoundException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    /**
-     * Return the bytes in file by channel.
-     *
-     * @param filePath The path of file.
-     * @return the bytes in file
-     */
-    public static byte[] readFile2BytesByChannel(final String filePath) {
-        return readFile2BytesByChannel(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the bytes in file by channel.
-     *
-     * @param file The file.
-     * @return the bytes in file
-     */
-    public static byte[] readFile2BytesByChannel(final File file) {
-        if (!isFileExists(file)) return null;
-        FileChannel fc = null;
-        try {
-            fc = new RandomAccessFile(file, "r").getChannel();
-            ByteBuffer byteBuffer = ByteBuffer.allocate((int) fc.size());
-            while (true) {
-                if (!((fc.read(byteBuffer)) > 0)) break;
-            }
-            return byteBuffer.array();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (fc != null) {
-                    fc.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Return the bytes in file by map.
-     *
-     * @param filePath The path of file.
-     * @return the bytes in file
-     */
-    public static byte[] readFile2BytesByMap(final String filePath) {
-        return readFile2BytesByMap(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the bytes in file by map.
-     *
-     * @param file The file.
-     * @return the bytes in file
-     */
-    public static byte[] readFile2BytesByMap(final File file) {
-        if (!isFileExists(file)) return null;
-        FileChannel fc = null;
-        try {
-            fc = new RandomAccessFile(file, "r").getChannel();
-            int size = (int) fc.size();
-            MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, size).load();
-            byte[] result = new byte[size];
-            mbb.get(result, 0, size);
-            return result;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (fc != null) {
-                    fc.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Set the buffer's size.
-     * <p>Default size equals 8192 bytes.</p>
-     *
-     * @param bufferSize The buffer's size.
-     */
-    public static void setBufferSize(final int bufferSize) {
-        sBufferSize = bufferSize;
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean createOrExistsFile(final String filePath) {
-        return createOrExistsFile(getFileByPath(filePath));
-    }
-
-    private static boolean createOrExistsFile(final File file) {
-        if (file == null) return false;
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean isFileExists(final File file) {
-        return file != null && file.exists();
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static byte[] is2Bytes(final InputStream is) {
-        if (is == null) return null;
-        ByteArrayOutputStream os = null;
-        try {
-            os = new ByteArrayOutputStream();
-            byte[] b = new byte[sBufferSize];
-            int len;
-            while ((len = is.read(b, 0, sBufferSize)) != -1) {
-                os.write(b, 0, len);
-            }
-            return os.toByteArray();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/FileUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/FileUtils.java
deleted file mode 100644
index bd50872216..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/FileUtils.java
+++ /dev/null
@@ -1,1266 +0,0 @@
-package com.blankj.utilcode.util;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileFilter;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.security.DigestInputStream;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/05/03
- *     desc  : utils about file
- * </pre>
- */
-public final class FileUtils {
-
-    private static final String LINE_SEP = System.getProperty("line.separator");
-
-    private FileUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return the file by path.
-     *
-     * @param filePath The path of file.
-     * @return the file
-     */
-    public static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    /**
-     * Return whether the file exists.
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isFileExists(final String filePath) {
-        return isFileExists(getFileByPath(filePath));
-    }
-
-    /**
-     * Return whether the file exists.
-     *
-     * @param file The file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isFileExists(final File file) {
-        return file != null && file.exists();
-    }
-
-    /**
-     * Rename the file.
-     *
-     * @param filePath The path of file.
-     * @param newName  The new name of file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean rename(final String filePath, final String newName) {
-        return rename(getFileByPath(filePath), newName);
-    }
-
-    /**
-     * Rename the file.
-     *
-     * @param file    The file.
-     * @param newName The new name of file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean rename(final File file, final String newName) {
-        // file is null then return false
-        if (file == null) return false;
-        // file doesn't exist then return false
-        if (!file.exists()) return false;
-        // the new name is space then return false
-        if (isSpace(newName)) return false;
-        // the new name equals old name then return true
-        if (newName.equals(file.getName())) return true;
-        File newFile = new File(file.getParent() + File.separator + newName);
-        // the new name of file exists then return false
-        return !newFile.exists()
-                && file.renameTo(newFile);
-    }
-
-    /**
-     * Return whether it is a directory.
-     *
-     * @param dirPath The path of directory.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isDir(final String dirPath) {
-        return isDir(getFileByPath(dirPath));
-    }
-
-    /**
-     * Return whether it is a directory.
-     *
-     * @param file The file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isDir(final File file) {
-        return file != null && file.exists() && file.isDirectory();
-    }
-
-    /**
-     * Return whether it is a file.
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isFile(final String filePath) {
-        return isFile(getFileByPath(filePath));
-    }
-
-    /**
-     * Return whether it is a file.
-     *
-     * @param file The file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isFile(final File file) {
-        return file != null && file.exists() && file.isFile();
-    }
-
-    /**
-     * Create a directory if it doesn't exist, otherwise do nothing.
-     *
-     * @param dirPath The path of directory.
-     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
-     */
-    public static boolean createOrExistsDir(final String dirPath) {
-        return createOrExistsDir(getFileByPath(dirPath));
-    }
-
-    /**
-     * Create a directory if it doesn't exist, otherwise do nothing.
-     *
-     * @param file The file.
-     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
-     */
-    public static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    /**
-     * Create a file if it doesn't exist, otherwise do nothing.
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
-     */
-    public static boolean createOrExistsFile(final String filePath) {
-        return createOrExistsFile(getFileByPath(filePath));
-    }
-
-    /**
-     * Create a file if it doesn't exist, otherwise do nothing.
-     *
-     * @param file The file.
-     * @return {@code true}: exists or creates successfully<br>{@code false}: otherwise
-     */
-    public static boolean createOrExistsFile(final File file) {
-        if (file == null) return false;
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Create a file if it doesn't exist, otherwise delete old file before creating.
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean createFileByDeleteOldFile(final String filePath) {
-        return createFileByDeleteOldFile(getFileByPath(filePath));
-    }
-
-    /**
-     * Create a file if it doesn't exist, otherwise delete old file before creating.
-     *
-     * @param file The file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean createFileByDeleteOldFile(final File file) {
-        if (file == null) return false;
-        // file exists and unsuccessfully delete then return false
-        if (file.exists() && !file.delete()) return false;
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Copy the directory.
-     *
-     * @param srcDirPath  The path of source directory.
-     * @param destDirPath The path of destination directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyDir(final String srcDirPath,
-                                  final String destDirPath) {
-        return copyDir(getFileByPath(srcDirPath), getFileByPath(destDirPath));
-    }
-
-    /**
-     * Copy the directory.
-     *
-     * @param srcDirPath  The path of source directory.
-     * @param destDirPath The path of destination directory.
-     * @param listener    The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyDir(final String srcDirPath,
-                                  final String destDirPath,
-                                  final OnReplaceListener listener) {
-        return copyDir(getFileByPath(srcDirPath), getFileByPath(destDirPath), listener);
-    }
-
-    /**
-     * Copy the directory.
-     *
-     * @param srcDir  The source directory.
-     * @param destDir The destination directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyDir(final File srcDir,
-                                  final File destDir) {
-        return copyOrMoveDir(srcDir, destDir, false);
-    }
-
-    /**
-     * Copy the directory.
-     *
-     * @param srcDir   The source directory.
-     * @param destDir  The destination directory.
-     * @param listener The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyDir(final File srcDir,
-                                  final File destDir,
-                                  final OnReplaceListener listener) {
-        return copyOrMoveDir(srcDir, destDir, listener, false);
-    }
-
-    /**
-     * Copy the file.
-     *
-     * @param srcFilePath  The path of source file.
-     * @param destFilePath The path of destination file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyFile(final String srcFilePath,
-                                   final String destFilePath) {
-        return copyFile(getFileByPath(srcFilePath), getFileByPath(destFilePath));
-    }
-
-    /**
-     * Copy the file.
-     *
-     * @param srcFilePath  The path of source file.
-     * @param destFilePath The path of destination file.
-     * @param listener     The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyFile(final String srcFilePath,
-                                   final String destFilePath,
-                                   final OnReplaceListener listener) {
-        return copyFile(getFileByPath(srcFilePath), getFileByPath(destFilePath), listener);
-    }
-
-    /**
-     * Copy the file.
-     *
-     * @param srcFile  The source file.
-     * @param destFile The destination file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyFile(final File srcFile,
-                                   final File destFile) {
-        return copyOrMoveFile(srcFile, destFile, false);
-    }
-
-    /**
-     * Copy the file.
-     *
-     * @param srcFile  The source file.
-     * @param destFile The destination file.
-     * @param listener The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyFile(final File srcFile,
-                                   final File destFile,
-                                   final OnReplaceListener listener) {
-        return copyOrMoveFile(srcFile, destFile, listener, false);
-    }
-
-    /**
-     * Move the directory.
-     *
-     * @param srcDirPath  The path of source directory.
-     * @param destDirPath The path of destination directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveDir(final String srcDirPath,
-                                  final String destDirPath) {
-        return moveDir(getFileByPath(srcDirPath), getFileByPath(destDirPath));
-    }
-
-    /**
-     * Move the directory.
-     *
-     * @param srcDirPath  The path of source directory.
-     * @param destDirPath The path of destination directory.
-     * @param listener    The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveDir(final String srcDirPath,
-                                  final String destDirPath,
-                                  final OnReplaceListener listener) {
-        return moveDir(getFileByPath(srcDirPath), getFileByPath(destDirPath), listener);
-    }
-
-    /**
-     * Move the directory.
-     *
-     * @param srcDir  The source directory.
-     * @param destDir The destination directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveDir(final File srcDir,
-                                  final File destDir) {
-        return copyOrMoveDir(srcDir, destDir, true);
-    }
-
-    /**
-     * Move the directory.
-     *
-     * @param srcDir   The source directory.
-     * @param destDir  The destination directory.
-     * @param listener The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveDir(final File srcDir,
-                                  final File destDir,
-                                  final OnReplaceListener listener) {
-        return copyOrMoveDir(srcDir, destDir, listener, true);
-    }
-
-    /**
-     * Move the file.
-     *
-     * @param srcFilePath  The path of source file.
-     * @param destFilePath The path of destination file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveFile(final String srcFilePath,
-                                   final String destFilePath) {
-        return moveFile(getFileByPath(srcFilePath), getFileByPath(destFilePath));
-    }
-
-    /**
-     * Move the file.
-     *
-     * @param srcFilePath  The path of source file.
-     * @param destFilePath The path of destination file.
-     * @param listener     The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveFile(final String srcFilePath,
-                                   final String destFilePath,
-                                   final OnReplaceListener listener) {
-        return moveFile(getFileByPath(srcFilePath), getFileByPath(destFilePath), listener);
-    }
-
-    /**
-     * Move the file.
-     *
-     * @param srcFile  The source file.
-     * @param destFile The destination file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveFile(final File srcFile,
-                                   final File destFile) {
-        return copyOrMoveFile(srcFile, destFile, true);
-    }
-
-    /**
-     * Move the file.
-     *
-     * @param srcFile  The source file.
-     * @param destFile The destination file.
-     * @param listener The replace listener.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean moveFile(final File srcFile,
-                                   final File destFile,
-                                   final OnReplaceListener listener) {
-        return copyOrMoveFile(srcFile, destFile, listener, true);
-    }
-
-    private static boolean copyOrMoveDir(final File srcDir,
-                                         final File destDir,
-                                         final boolean isMove) {
-        return copyOrMoveDir(srcDir, destDir, new OnReplaceListener() {
-            @Override
-            public boolean onReplace() {
-                return true;
-            }
-        }, isMove);
-    }
-
-    private static boolean copyOrMoveDir(final File srcDir,
-                                         final File destDir,
-                                         final OnReplaceListener listener,
-                                         final boolean isMove) {
-        if (srcDir == null || destDir == null) return false;
-        // destDir's path locate in srcDir's path then return false
-        String srcPath = srcDir.getPath() + File.separator;
-        String destPath = destDir.getPath() + File.separator;
-        if (destPath.contains(srcPath)) return false;
-        if (!srcDir.exists() || !srcDir.isDirectory()) return false;
-        if (destDir.exists()) {
-            if (listener == null || listener.onReplace()) {// require delete the old directory
-                if (!deleteAllInDir(destDir)) {// unsuccessfully delete then return false
-                    return false;
-                }
-            } else {
-                return true;
-            }
-        }
-        if (!createOrExistsDir(destDir)) return false;
-        File[] files = srcDir.listFiles();
-        for (File file : files) {
-            File oneDestFile = new File(destPath + file.getName());
-            if (file.isFile()) {
-                if (!copyOrMoveFile(file, oneDestFile, listener, isMove)) return false;
-            } else if (file.isDirectory()) {
-                if (!copyOrMoveDir(file, oneDestFile, listener, isMove)) return false;
-            }
-        }
-        return !isMove || deleteDir(srcDir);
-    }
-
-    private static boolean copyOrMoveFile(final File srcFile,
-                                          final File destFile,
-                                          final boolean isMove) {
-        return copyOrMoveFile(srcFile, destFile, new OnReplaceListener() {
-            @Override
-            public boolean onReplace() {
-                return true;
-            }
-        }, isMove);
-    }
-
-    private static boolean copyOrMoveFile(final File srcFile,
-                                          final File destFile,
-                                          final OnReplaceListener listener,
-                                          final boolean isMove) {
-        if (srcFile == null || destFile == null) return false;
-        // srcFile equals destFile then return false
-        if (srcFile.equals(destFile)) return false;
-        // srcFile doesn't exist or isn't a file then return false
-        if (!srcFile.exists() || !srcFile.isFile()) return false;
-        if (destFile.exists()) {
-            if (listener == null || listener.onReplace()) {// require delete the old file
-                if (!destFile.delete()) {// unsuccessfully delete then return false
-                    return false;
-                }
-            } else {
-                return true;
-            }
-        }
-        if (!createOrExistsDir(destFile.getParentFile())) return false;
-        try {
-            return writeFileFromIS(destFile, new FileInputStream(srcFile))
-                    && !(isMove && !deleteFile(srcFile));
-        } catch (FileNotFoundException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Delete the directory.
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean delete(final String filePath) {
-        return delete(getFileByPath(filePath));
-    }
-
-    /**
-     * Delete the directory.
-     *
-     * @param file The file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean delete(final File file) {
-        if (file == null) return false;
-        if (file.isDirectory()) {
-            return deleteDir(file);
-        }
-        return deleteFile(file);
-    }
-
-    /**
-     * Delete the directory.
-     *
-     * @param dirPath The path of directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteDir(final String dirPath) {
-        return deleteDir(getFileByPath(dirPath));
-    }
-
-    /**
-     * Delete the directory.
-     *
-     * @param dir The directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteDir(final File dir) {
-        if (dir == null) return false;
-        // dir doesn't exist then return true
-        if (!dir.exists()) return true;
-        // dir isn't a directory then return false
-        if (!dir.isDirectory()) return false;
-        File[] files = dir.listFiles();
-        if (files != null && files.length != 0) {
-            for (File file : files) {
-                if (file.isFile()) {
-                    if (!file.delete()) return false;
-                } else if (file.isDirectory()) {
-                    if (!deleteDir(file)) return false;
-                }
-            }
-        }
-        return dir.delete();
-    }
-
-    /**
-     * Delete the file.
-     *
-     * @param srcFilePath The path of source file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteFile(final String srcFilePath) {
-        return deleteFile(getFileByPath(srcFilePath));
-    }
-
-    /**
-     * Delete the file.
-     *
-     * @param file The file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteFile(final File file) {
-        return file != null && (!file.exists() || file.isFile() && file.delete());
-    }
-
-    /**
-     * Delete the all in directory.
-     *
-     * @param dirPath The path of directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteAllInDir(final String dirPath) {
-        return deleteAllInDir(getFileByPath(dirPath));
-    }
-
-    /**
-     * Delete the all in directory.
-     *
-     * @param dir The directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteAllInDir(final File dir) {
-        return deleteFilesInDirWithFilter(dir, new FileFilter() {
-            @Override
-            public boolean accept(File pathname) {
-                return true;
-            }
-        });
-    }
-
-    /**
-     * Delete all files in directory.
-     *
-     * @param dirPath The path of directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteFilesInDir(final String dirPath) {
-        return deleteFilesInDir(getFileByPath(dirPath));
-    }
-
-    /**
-     * Delete all files in directory.
-     *
-     * @param dir The directory.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteFilesInDir(final File dir) {
-        return deleteFilesInDirWithFilter(dir, new FileFilter() {
-            @Override
-            public boolean accept(File pathname) {
-                return pathname.isFile();
-            }
-        });
-    }
-
-    /**
-     * Delete all files that satisfy the filter in directory.
-     *
-     * @param dirPath The path of directory.
-     * @param filter  The filter.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteFilesInDirWithFilter(final String dirPath,
-                                                     final FileFilter filter) {
-        return deleteFilesInDirWithFilter(getFileByPath(dirPath), filter);
-    }
-
-    /**
-     * Delete all files that satisfy the filter in directory.
-     *
-     * @param dir    The directory.
-     * @param filter The filter.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean deleteFilesInDirWithFilter(final File dir, final FileFilter filter) {
-        if (dir == null) return false;
-        // dir doesn't exist then return true
-        if (!dir.exists()) return true;
-        // dir isn't a directory then return false
-        if (!dir.isDirectory()) return false;
-        File[] files = dir.listFiles();
-        if (files != null && files.length != 0) {
-            for (File file : files) {
-                if (filter.accept(file)) {
-                    if (file.isFile()) {
-                        if (!file.delete()) return false;
-                    } else if (file.isDirectory()) {
-                        if (!deleteDir(file)) return false;
-                    }
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Return the files in directory.
-     * <p>Doesn't traverse subdirectories</p>
-     *
-     * @param dirPath The path of directory.
-     * @return the files in directory
-     */
-    public static List<File> listFilesInDir(final String dirPath) {
-        return listFilesInDir(dirPath, false);
-    }
-
-    /**
-     * Return the files in directory.
-     * <p>Doesn't traverse subdirectories</p>
-     *
-     * @param dir The directory.
-     * @return the files in directory
-     */
-    public static List<File> listFilesInDir(final File dir) {
-        return listFilesInDir(dir, false);
-    }
-
-    /**
-     * Return the files in directory.
-     *
-     * @param dirPath     The path of directory.
-     * @param isRecursive True to traverse subdirectories, false otherwise.
-     * @return the files in directory
-     */
-    public static List<File> listFilesInDir(final String dirPath, final boolean isRecursive) {
-        return listFilesInDir(getFileByPath(dirPath), isRecursive);
-    }
-
-    /**
-     * Return the files in directory.
-     *
-     * @param dir         The directory.
-     * @param isRecursive True to traverse subdirectories, false otherwise.
-     * @return the files in directory
-     */
-    public static List<File> listFilesInDir(final File dir, final boolean isRecursive) {
-        return listFilesInDirWithFilter(dir, new FileFilter() {
-            @Override
-            public boolean accept(File pathname) {
-                return true;
-            }
-        }, isRecursive);
-    }
-
-    /**
-     * Return the files that satisfy the filter in directory.
-     * <p>Doesn't traverse subdirectories</p>
-     *
-     * @param dirPath The path of directory.
-     * @param filter  The filter.
-     * @return the files that satisfy the filter in directory
-     */
-    public static List<File> listFilesInDirWithFilter(final String dirPath,
-                                                      final FileFilter filter) {
-        return listFilesInDirWithFilter(getFileByPath(dirPath), filter, false);
-    }
-
-    /**
-     * Return the files that satisfy the filter in directory.
-     * <p>Doesn't traverse subdirectories</p>
-     *
-     * @param dir    The directory.
-     * @param filter The filter.
-     * @return the files that satisfy the filter in directory
-     */
-    public static List<File> listFilesInDirWithFilter(final File dir,
-                                                      final FileFilter filter) {
-        return listFilesInDirWithFilter(dir, filter, false);
-    }
-
-    /**
-     * Return the files that satisfy the filter in directory.
-     *
-     * @param dirPath     The path of directory.
-     * @param filter      The filter.
-     * @param isRecursive True to traverse subdirectories, false otherwise.
-     * @return the files that satisfy the filter in directory
-     */
-    public static List<File> listFilesInDirWithFilter(final String dirPath,
-                                                      final FileFilter filter,
-                                                      final boolean isRecursive) {
-        return listFilesInDirWithFilter(getFileByPath(dirPath), filter, isRecursive);
-    }
-
-    /**
-     * Return the files that satisfy the filter in directory.
-     *
-     * @param dir         The directory.
-     * @param filter      The filter.
-     * @param isRecursive True to traverse subdirectories, false otherwise.
-     * @return the files that satisfy the filter in directory
-     */
-    public static List<File> listFilesInDirWithFilter(final File dir,
-                                                      final FileFilter filter,
-                                                      final boolean isRecursive) {
-        if (!isDir(dir)) return null;
-        List<File> list = new ArrayList<>();
-        File[] files = dir.listFiles();
-        if (files != null && files.length != 0) {
-            for (File file : files) {
-                if (filter.accept(file)) {
-                    list.add(file);
-                }
-                if (isRecursive && file.isDirectory()) {
-                    //noinspection ConstantConditions
-                    list.addAll(listFilesInDirWithFilter(file, filter, true));
-                }
-            }
-        }
-        return list;
-    }
-
-    /**
-     * Return the time that the file was last modified.
-     *
-     * @param filePath The path of file.
-     * @return the time that the file was last modified
-     */
-
-    public static long getFileLastModified(final String filePath) {
-        return getFileLastModified(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the time that the file was last modified.
-     *
-     * @param file The file.
-     * @return the time that the file was last modified
-     */
-    public static long getFileLastModified(final File file) {
-        if (file == null) return -1;
-        return file.lastModified();
-    }
-
-    /**
-     * Return the charset of file simply.
-     *
-     * @param filePath The path of file.
-     * @return the charset of file simply
-     */
-    public static String getFileCharsetSimple(final String filePath) {
-        return getFileCharsetSimple(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the charset of file simply.
-     *
-     * @param file The file.
-     * @return the charset of file simply
-     */
-    public static String getFileCharsetSimple(final File file) {
-        int p = 0;
-        InputStream is = null;
-        try {
-            is = new BufferedInputStream(new FileInputStream(file));
-            p = (is.read() << 8) + is.read();
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (is != null) {
-                    is.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        switch (p) {
-            case 0xefbb:
-                return "UTF-8";
-            case 0xfffe:
-                return "Unicode";
-            case 0xfeff:
-                return "UTF-16BE";
-            default:
-                return "GBK";
-        }
-    }
-
-    /**
-     * Return the number of lines of file.
-     *
-     * @param filePath The path of file.
-     * @return the number of lines of file
-     */
-    public static int getFileLines(final String filePath) {
-        return getFileLines(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the number of lines of file.
-     *
-     * @param file The file.
-     * @return the number of lines of file
-     */
-    public static int getFileLines(final File file) {
-        int count = 1;
-        InputStream is = null;
-        try {
-            is = new BufferedInputStream(new FileInputStream(file));
-            byte[] buffer = new byte[1024];
-            int readChars;
-            if (LINE_SEP.endsWith("\n")) {
-                while ((readChars = is.read(buffer, 0, 1024)) != -1) {
-                    for (int i = 0; i < readChars; ++i) {
-                        if (buffer[i] == '\n') ++count;
-                    }
-                }
-            } else {
-                while ((readChars = is.read(buffer, 0, 1024)) != -1) {
-                    for (int i = 0; i < readChars; ++i) {
-                        if (buffer[i] == '\r') ++count;
-                    }
-                }
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (is != null) {
-                    is.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        return count;
-    }
-
-    /**
-     * Return the size of directory.
-     *
-     * @param dirPath The path of directory.
-     * @return the size of directory
-     */
-    public static String getDirSize(final String dirPath) {
-        return getDirSize(getFileByPath(dirPath));
-    }
-
-    /**
-     * Return the size of directory.
-     *
-     * @param dir The directory.
-     * @return the size of directory
-     */
-    public static String getDirSize(final File dir) {
-        long len = getDirLength(dir);
-        return len == -1 ? "" : byte2FitMemorySize(len);
-    }
-
-    /**
-     * Return the length of file.
-     *
-     * @param filePath The path of file.
-     * @return the length of file
-     */
-    public static String getFileSize(final String filePath) {
-        long len = getFileLength(filePath);
-        return len == -1 ? "" : byte2FitMemorySize(len);
-    }
-
-    /**
-     * Return the length of file.
-     *
-     * @param file The file.
-     * @return the length of file
-     */
-    public static String getFileSize(final File file) {
-        long len = getFileLength(file);
-        return len == -1 ? "" : byte2FitMemorySize(len);
-    }
-
-    /**
-     * Return the length of directory.
-     *
-     * @param dirPath The path of directory.
-     * @return the length of directory
-     */
-    public static long getDirLength(final String dirPath) {
-        return getDirLength(getFileByPath(dirPath));
-    }
-
-    /**
-     * Return the length of directory.
-     *
-     * @param dir The directory.
-     * @return the length of directory
-     */
-    public static long getDirLength(final File dir) {
-        if (!isDir(dir)) return -1;
-        long len = 0;
-        File[] files = dir.listFiles();
-        if (files != null && files.length != 0) {
-            for (File file : files) {
-                if (file.isDirectory()) {
-                    len += getDirLength(file);
-                } else {
-                    len += file.length();
-                }
-            }
-        }
-        return len;
-    }
-
-    /**
-     * Return the length of file.
-     *
-     * @param filePath The path of file.
-     * @return the length of file
-     */
-    public static long getFileLength(final String filePath) {
-        boolean isURL = filePath.matches("[a-zA-z]+://[^\\s]*");
-        if (isURL) {
-            try {
-                HttpURLConnection conn = (HttpURLConnection) new URL(filePath).openConnection();
-                conn.setRequestProperty("Accept-Encoding", "identity");
-                conn.connect();
-                if (conn.getResponseCode() == 200) {
-                    return conn.getContentLength();
-                }
-                return -1;
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        return getFileLength(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the length of file.
-     *
-     * @param file The file.
-     * @return the length of file
-     */
-    public static long getFileLength(final File file) {
-        if (!isFile(file)) return -1;
-        return file.length();
-    }
-
-    /**
-     * Return the MD5 of file.
-     *
-     * @param filePath The path of file.
-     * @return the md5 of file
-     */
-    public static String getFileMD5ToString(final String filePath) {
-        File file = isSpace(filePath) ? null : new File(filePath);
-        return getFileMD5ToString(file);
-    }
-
-    /**
-     * Return the MD5 of file.
-     *
-     * @param file The file.
-     * @return the md5 of file
-     */
-    public static String getFileMD5ToString(final File file) {
-        return bytes2HexString(getFileMD5(file));
-    }
-
-    /**
-     * Return the MD5 of file.
-     *
-     * @param filePath The path of file.
-     * @return the md5 of file
-     */
-    public static byte[] getFileMD5(final String filePath) {
-        return getFileMD5(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the MD5 of file.
-     *
-     * @param file The file.
-     * @return the md5 of file
-     */
-    public static byte[] getFileMD5(final File file) {
-        if (file == null) return null;
-        DigestInputStream dis = null;
-        try {
-            FileInputStream fis = new FileInputStream(file);
-            MessageDigest md = MessageDigest.getInstance("MD5");
-            dis = new DigestInputStream(fis, md);
-            byte[] buffer = new byte[1024 * 256];
-            while (true) {
-                if (!(dis.read(buffer) > 0)) break;
-            }
-            md = dis.getMessageDigest();
-            return md.digest();
-        } catch (NoSuchAlgorithmException | IOException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (dis != null) {
-                    dis.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        return null;
-    }
-
-    /**
-     * Return the file's path of directory.
-     *
-     * @param file The file.
-     * @return the file's path of directory
-     */
-    public static String getDirName(final File file) {
-        if (file == null) return "";
-        return getDirName(file.getAbsolutePath());
-    }
-
-    /**
-     * Return the file's path of directory.
-     *
-     * @param filePath The path of file.
-     * @return the file's path of directory
-     */
-    public static String getDirName(final String filePath) {
-        if (isSpace(filePath)) return "";
-        int lastSep = filePath.lastIndexOf(File.separator);
-        return lastSep == -1 ? "" : filePath.substring(0, lastSep + 1);
-    }
-
-    /**
-     * Return the name of file.
-     *
-     * @param file The file.
-     * @return the name of file
-     */
-    public static String getFileName(final File file) {
-        if (file == null) return "";
-        return getFileName(file.getAbsolutePath());
-    }
-
-    /**
-     * Return the name of file.
-     *
-     * @param filePath The path of file.
-     * @return the name of file
-     */
-    public static String getFileName(final String filePath) {
-        if (isSpace(filePath)) return "";
-        int lastSep = filePath.lastIndexOf(File.separator);
-        return lastSep == -1 ? filePath : filePath.substring(lastSep + 1);
-    }
-
-    /**
-     * Return the name of file without extension.
-     *
-     * @param file The file.
-     * @return the name of file without extension
-     */
-    public static String getFileNameNoExtension(final File file) {
-        if (file == null) return "";
-        return getFileNameNoExtension(file.getPath());
-    }
-
-    /**
-     * Return the name of file without extension.
-     *
-     * @param filePath The path of file.
-     * @return the name of file without extension
-     */
-    public static String getFileNameNoExtension(final String filePath) {
-        if (isSpace(filePath)) return "";
-        int lastPoi = filePath.lastIndexOf('.');
-        int lastSep = filePath.lastIndexOf(File.separator);
-        if (lastSep == -1) {
-            return (lastPoi == -1 ? filePath : filePath.substring(0, lastPoi));
-        }
-        if (lastPoi == -1 || lastSep > lastPoi) {
-            return filePath.substring(lastSep + 1);
-        }
-        return filePath.substring(lastSep + 1, lastPoi);
-    }
-
-    /**
-     * Return the extension of file.
-     *
-     * @param file The file.
-     * @return the extension of file
-     */
-    public static String getFileExtension(final File file) {
-        if (file == null) return "";
-        return getFileExtension(file.getPath());
-    }
-
-    /**
-     * Return the extension of file.
-     *
-     * @param filePath The path of file.
-     * @return the extension of file
-     */
-    public static String getFileExtension(final String filePath) {
-        if (isSpace(filePath)) return "";
-        int lastPoi = filePath.lastIndexOf('.');
-        int lastSep = filePath.lastIndexOf(File.separator);
-        if (lastPoi == -1 || lastSep >= lastPoi) return "";
-        return filePath.substring(lastPoi + 1);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // interface
-    ///////////////////////////////////////////////////////////////////////////
-
-    public interface OnReplaceListener {
-        boolean onReplace();
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static final char HEX_DIGITS[] =
-            {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-
-    private static String bytes2HexString(final byte[] bytes) {
-        if (bytes == null) return "";
-        int len = bytes.length;
-        if (len <= 0) return "";
-        char[] ret = new char[len << 1];
-        for (int i = 0, j = 0; i < len; i++) {
-            ret[j++] = HEX_DIGITS[bytes[i] >> 4 & 0x0f];
-            ret[j++] = HEX_DIGITS[bytes[i] & 0x0f];
-        }
-        return new String(ret);
-    }
-
-    private static String byte2FitMemorySize(final long byteNum) {
-        if (byteNum < 0) {
-            return "shouldn't be less than zero!";
-        } else if (byteNum < 1024) {
-            return String.format(Locale.getDefault(), "%.3fB", (double) byteNum);
-        } else if (byteNum < 1048576) {
-            return String.format(Locale.getDefault(), "%.3fKB", (double) byteNum / 1024);
-        } else if (byteNum < 1073741824) {
-            return String.format(Locale.getDefault(), "%.3fMB", (double) byteNum / 1048576);
-        } else {
-            return String.format(Locale.getDefault(), "%.3fGB", (double) byteNum / 1073741824);
-        }
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static boolean writeFileFromIS(final File file,
-                                           final InputStream is) {
-        OutputStream os = null;
-        try {
-            os = new BufferedOutputStream(new FileOutputStream(file));
-            byte data[] = new byte[8192];
-            int len;
-            while ((len = is.read(data, 0, 8192)) != -1) {
-                os.write(data, 0, len);
-            }
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ImageUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ImageUtils.java
deleted file mode 100644
index d75c67c192..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ImageUtils.java
+++ /dev/null
@@ -1,1928 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Bitmap.CompressFormat;
-import android.graphics.BitmapFactory;
-import android.graphics.BitmapShader;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.ColorMatrix;
-import android.graphics.ColorMatrixColorFilter;
-import android.graphics.LinearGradient;
-import android.graphics.Matrix;
-import android.graphics.Paint;
-import android.graphics.PixelFormat;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffColorFilter;
-import android.graphics.PorterDuffXfermode;
-import android.graphics.Rect;
-import android.graphics.RectF;
-import android.graphics.Shader;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.media.ExifInterface;
-import android.os.Build;
-import android.renderscript.Allocation;
-import android.renderscript.Element;
-import android.renderscript.RenderScript;
-import android.renderscript.ScriptIntrinsicBlur;
-import android.support.annotation.ColorInt;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.FloatRange;
-import android.support.annotation.IntRange;
-import android.support.annotation.NonNull;
-import android.support.annotation.RequiresApi;
-import android.support.v4.content.ContextCompat;
-import android.view.View;
-
-import java.io.BufferedOutputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileDescriptor;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/12
- *     desc  : utils about image
- * </pre>
- */
-public final class ImageUtils {
-
-    private ImageUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Bitmap to bytes.
-     *
-     * @param bitmap The bitmap.
-     * @param format The format of bitmap.
-     * @return bytes
-     */
-    public static byte[] bitmap2Bytes(final Bitmap bitmap, final CompressFormat format) {
-        if (bitmap == null) return null;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        bitmap.compress(format, 100, baos);
-        return baos.toByteArray();
-    }
-
-    /**
-     * Bytes to bitmap.
-     *
-     * @param bytes The bytes.
-     * @return bitmap
-     */
-    public static Bitmap bytes2Bitmap(final byte[] bytes) {
-        return (bytes == null || bytes.length == 0)
-                ? null
-                : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
-    }
-
-    /**
-     * Drawable to bitmap.
-     *
-     * @param drawable The drawable.
-     * @return bitmap
-     */
-    public static Bitmap drawable2Bitmap(final Drawable drawable) {
-        if (drawable instanceof BitmapDrawable) {
-            BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
-            if (bitmapDrawable.getBitmap() != null) {
-                return bitmapDrawable.getBitmap();
-            }
-        }
-        Bitmap bitmap;
-        if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
-            bitmap = Bitmap.createBitmap(1, 1,
-                    drawable.getOpacity() != PixelFormat.OPAQUE
-                            ? Bitmap.Config.ARGB_8888
-                            : Bitmap.Config.RGB_565);
-        } else {
-            bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
-                    drawable.getIntrinsicHeight(),
-                    drawable.getOpacity() != PixelFormat.OPAQUE
-                            ? Bitmap.Config.ARGB_8888
-                            : Bitmap.Config.RGB_565);
-        }
-        Canvas canvas = new Canvas(bitmap);
-        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
-        drawable.draw(canvas);
-        return bitmap;
-    }
-
-    /**
-     * Bitmap to drawable.
-     *
-     * @param bitmap The bitmap.
-     * @return drawable
-     */
-    public static Drawable bitmap2Drawable(final Bitmap bitmap) {
-        return bitmap == null ? null : new BitmapDrawable(Utils.getApp().getResources(), bitmap);
-    }
-
-    /**
-     * Drawable to bytes.
-     *
-     * @param drawable The drawable.
-     * @param format   The format of bitmap.
-     * @return bytes
-     */
-    public static byte[] drawable2Bytes(final Drawable drawable, final CompressFormat format) {
-        return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable), format);
-    }
-
-    /**
-     * Bytes to drawable.
-     *
-     * @param bytes The bytes.
-     * @return drawable
-     */
-    public static Drawable bytes2Drawable(final byte[] bytes) {
-        return bitmap2Drawable(bytes2Bitmap(bytes));
-    }
-
-    /**
-     * View to bitmap.
-     *
-     * @param view The view.
-     * @return bitmap
-     */
-    public static Bitmap view2Bitmap(final View view) {
-        if (view == null) return null;
-        Bitmap ret = Bitmap.createBitmap(view.getWidth(),
-                view.getHeight(),
-                Bitmap.Config.ARGB_8888);
-        Canvas canvas = new Canvas(ret);
-        Drawable bgDrawable = view.getBackground();
-        if (bgDrawable != null) {
-            bgDrawable.draw(canvas);
-        } else {
-            canvas.drawColor(Color.WHITE);
-        }
-        view.draw(canvas);
-        return ret;
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param file The file.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final File file) {
-        if (file == null) return null;
-        return BitmapFactory.decodeFile(file.getAbsolutePath());
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param file      The file.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final File file, final int maxWidth, final int maxHeight) {
-        if (file == null) return null;
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        options.inJustDecodeBounds = true;
-        BitmapFactory.decodeFile(file.getAbsolutePath(), options);
-        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
-        options.inJustDecodeBounds = false;
-        return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param filePath The path of file.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final String filePath) {
-        if (isSpace(filePath)) return null;
-        return BitmapFactory.decodeFile(filePath);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param filePath  The path of file.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final String filePath, final int maxWidth, final int maxHeight) {
-        if (isSpace(filePath)) return null;
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        options.inJustDecodeBounds = true;
-        BitmapFactory.decodeFile(filePath, options);
-        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
-        options.inJustDecodeBounds = false;
-        return BitmapFactory.decodeFile(filePath, options);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param is The input stream.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final InputStream is) {
-        if (is == null) return null;
-        return BitmapFactory.decodeStream(is);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param is        The input stream.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final InputStream is, final int maxWidth, final int maxHeight) {
-        if (is == null) return null;
-        byte[] bytes = input2Byte(is);
-        return getBitmap(bytes, 0, maxWidth, maxHeight);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param data   The data.
-     * @param offset The offset.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final byte[] data, final int offset) {
-        if (data.length == 0) return null;
-        return BitmapFactory.decodeByteArray(data, offset, data.length);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param data      The data.
-     * @param offset    The offset.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final byte[] data,
-                                   final int offset,
-                                   final int maxWidth,
-                                   final int maxHeight) {
-        if (data.length == 0) return null;
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        options.inJustDecodeBounds = true;
-        BitmapFactory.decodeByteArray(data, offset, data.length, options);
-        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
-        options.inJustDecodeBounds = false;
-        return BitmapFactory.decodeByteArray(data, offset, data.length, options);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param resId The resource id.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(@DrawableRes final int resId) {
-        Drawable drawable = ContextCompat.getDrawable(Utils.getApp(), resId);
-        Canvas canvas = new Canvas();
-        Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
-                drawable.getIntrinsicHeight(),
-                Bitmap.Config.ARGB_8888);
-        canvas.setBitmap(bitmap);
-        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
-        drawable.draw(canvas);
-        return bitmap;
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param resId     The resource id.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(@DrawableRes final int resId,
-                                   final int maxWidth,
-                                   final int maxHeight) {
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        final Resources resources = Utils.getApp().getResources();
-        options.inJustDecodeBounds = true;
-        BitmapFactory.decodeResource(resources, resId, options);
-        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
-        options.inJustDecodeBounds = false;
-        return BitmapFactory.decodeResource(resources, resId, options);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param fd The file descriptor.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final FileDescriptor fd) {
-        if (fd == null) return null;
-        return BitmapFactory.decodeFileDescriptor(fd);
-    }
-
-    /**
-     * Return bitmap.
-     *
-     * @param fd        The file descriptor
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return bitmap
-     */
-    public static Bitmap getBitmap(final FileDescriptor fd,
-                                   final int maxWidth,
-                                   final int maxHeight) {
-        if (fd == null) return null;
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        options.inJustDecodeBounds = true;
-        BitmapFactory.decodeFileDescriptor(fd, null, options);
-        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
-        options.inJustDecodeBounds = false;
-        return BitmapFactory.decodeFileDescriptor(fd, null, options);
-    }
-
-    /**
-     * Return the bitmap with the specified color.
-     *
-     * @param src   The source of bitmap.
-     * @param color The color.
-     * @return the bitmap with the specified color
-     */
-    public static Bitmap drawColor(@NonNull final Bitmap src, @ColorInt final int color) {
-        return drawColor(src, color, false);
-    }
-
-    /**
-     * Return the bitmap with the specified color.
-     *
-     * @param src     The source of bitmap.
-     * @param color   The color.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the bitmap with the specified color
-     */
-    public static Bitmap drawColor(@NonNull final Bitmap src,
-                                   @ColorInt final int color,
-                                   final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
-        Canvas canvas = new Canvas(ret);
-        canvas.drawColor(color, PorterDuff.Mode.DARKEN);
-        return ret;
-    }
-
-    /**
-     * Return the scaled bitmap.
-     *
-     * @param src       The source of bitmap.
-     * @param newWidth  The new width.
-     * @param newHeight The new height.
-     * @return the scaled bitmap
-     */
-    public static Bitmap scale(final Bitmap src, final int newWidth, final int newHeight) {
-        return scale(src, newWidth, newHeight, false);
-    }
-
-    /**
-     * Return the scaled bitmap.
-     *
-     * @param src       The source of bitmap.
-     * @param newWidth  The new width.
-     * @param newHeight The new height.
-     * @param recycle   True to recycle the source of bitmap, false otherwise.
-     * @return the scaled bitmap
-     */
-    public static Bitmap scale(final Bitmap src,
-                               final int newWidth,
-                               final int newHeight,
-                               final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = Bitmap.createScaledBitmap(src, newWidth, newHeight, true);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the scaled bitmap
-     *
-     * @param src         The source of bitmap.
-     * @param scaleWidth  The scale of width.
-     * @param scaleHeight The scale of height.
-     * @return the scaled bitmap
-     */
-    public static Bitmap scale(final Bitmap src, final float scaleWidth, final float scaleHeight) {
-        return scale(src, scaleWidth, scaleHeight, false);
-    }
-
-    /**
-     * Return the scaled bitmap
-     *
-     * @param src         The source of bitmap.
-     * @param scaleWidth  The scale of width.
-     * @param scaleHeight The scale of height.
-     * @param recycle     True to recycle the source of bitmap, false otherwise.
-     * @return the scaled bitmap
-     */
-    public static Bitmap scale(final Bitmap src,
-                               final float scaleWidth,
-                               final float scaleHeight,
-                               final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Matrix matrix = new Matrix();
-        matrix.setScale(scaleWidth, scaleHeight);
-        Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the clipped bitmap.
-     *
-     * @param src    The source of bitmap.
-     * @param x      The x coordinate of the first pixel.
-     * @param y      The y coordinate of the first pixel.
-     * @param width  The width.
-     * @param height The height.
-     * @return the clipped bitmap
-     */
-    public static Bitmap clip(final Bitmap src,
-                              final int x,
-                              final int y,
-                              final int width,
-                              final int height) {
-        return clip(src, x, y, width, height, false);
-    }
-
-    /**
-     * Return the clipped bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param x       The x coordinate of the first pixel.
-     * @param y       The y coordinate of the first pixel.
-     * @param width   The width.
-     * @param height  The height.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the clipped bitmap
-     */
-    public static Bitmap clip(final Bitmap src,
-                              final int x,
-                              final int y,
-                              final int width,
-                              final int height,
-                              final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = Bitmap.createBitmap(src, x, y, width, height);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the skewed bitmap.
-     *
-     * @param src The source of bitmap.
-     * @param kx  The skew factor of x.
-     * @param ky  The skew factor of y.
-     * @return the skewed bitmap
-     */
-    public static Bitmap skew(final Bitmap src, final float kx, final float ky) {
-        return skew(src, kx, ky, 0, 0, false);
-    }
-
-    /**
-     * Return the skewed bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param kx      The skew factor of x.
-     * @param ky      The skew factor of y.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the skewed bitmap
-     */
-    public static Bitmap skew(final Bitmap src,
-                              final float kx,
-                              final float ky,
-                              final boolean recycle) {
-        return skew(src, kx, ky, 0, 0, recycle);
-    }
-
-    /**
-     * Return the skewed bitmap.
-     *
-     * @param src The source of bitmap.
-     * @param kx  The skew factor of x.
-     * @param ky  The skew factor of y.
-     * @param px  The x coordinate of the pivot point.
-     * @param py  The y coordinate of the pivot point.
-     * @return the skewed bitmap
-     */
-    public static Bitmap skew(final Bitmap src,
-                              final float kx,
-                              final float ky,
-                              final float px,
-                              final float py) {
-        return skew(src, kx, ky, px, py, false);
-    }
-
-    /**
-     * Return the skewed bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param kx      The skew factor of x.
-     * @param ky      The skew factor of y.
-     * @param px      The x coordinate of the pivot point.
-     * @param py      The y coordinate of the pivot point.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the skewed bitmap
-     */
-    public static Bitmap skew(final Bitmap src,
-                              final float kx,
-                              final float ky,
-                              final float px,
-                              final float py,
-                              final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Matrix matrix = new Matrix();
-        matrix.setSkew(kx, ky, px, py);
-        Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the rotated bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param degrees The number of degrees.
-     * @param px      The x coordinate of the pivot point.
-     * @param py      The y coordinate of the pivot point.
-     * @return the rotated bitmap
-     */
-    public static Bitmap rotate(final Bitmap src,
-                                final int degrees,
-                                final float px,
-                                final float py) {
-        return rotate(src, degrees, px, py, false);
-    }
-
-    /**
-     * Return the rotated bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param degrees The number of degrees.
-     * @param px      The x coordinate of the pivot point.
-     * @param py      The y coordinate of the pivot point.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the rotated bitmap
-     */
-    public static Bitmap rotate(final Bitmap src,
-                                final int degrees,
-                                final float px,
-                                final float py,
-                                final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        if (degrees == 0) return src;
-        Matrix matrix = new Matrix();
-        matrix.setRotate(degrees, px, py);
-        Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the rotated degree.
-     *
-     * @param filePath The path of file.
-     * @return the rotated degree
-     */
-    public static int getRotateDegree(final String filePath) {
-        try {
-            ExifInterface exifInterface = new ExifInterface(filePath);
-            int orientation = exifInterface.getAttributeInt(
-                    ExifInterface.TAG_ORIENTATION,
-                    ExifInterface.ORIENTATION_NORMAL
-            );
-            switch (orientation) {
-                case ExifInterface.ORIENTATION_ROTATE_90:
-                    return 90;
-                case ExifInterface.ORIENTATION_ROTATE_180:
-                    return 180;
-                case ExifInterface.ORIENTATION_ROTATE_270:
-                    return 270;
-                default:
-                    return 0;
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-            return -1;
-        }
-    }
-
-    /**
-     * Return the round bitmap.
-     *
-     * @param src The source of bitmap.
-     * @return the round bitmap
-     */
-    public static Bitmap toRound(final Bitmap src) {
-        return toRound(src, 0, 0, false);
-    }
-
-    /**
-     * Return the round bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the round bitmap
-     */
-    public static Bitmap toRound(final Bitmap src, final boolean recycle) {
-        return toRound(src, 0, 0, recycle);
-    }
-
-    /**
-     * Return the round bitmap.
-     *
-     * @param src         The source of bitmap.
-     * @param borderSize  The size of border.
-     * @param borderColor The color of border.
-     * @return the round bitmap
-     */
-    public static Bitmap toRound(final Bitmap src,
-                                 @IntRange(from = 0) int borderSize,
-                                 @ColorInt int borderColor) {
-        return toRound(src, borderSize, borderColor, false);
-    }
-
-    /**
-     * Return the round bitmap.
-     *
-     * @param src         The source of bitmap.
-     * @param recycle     True to recycle the source of bitmap, false otherwise.
-     * @param borderSize  The size of border.
-     * @param borderColor The color of border.
-     * @return the round bitmap
-     */
-    public static Bitmap toRound(final Bitmap src,
-                                 @IntRange(from = 0) int borderSize,
-                                 @ColorInt int borderColor,
-                                 final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        int width = src.getWidth();
-        int height = src.getHeight();
-        int size = Math.min(width, height);
-        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
-        float center = size / 2f;
-        RectF rectF = new RectF(0, 0, width, height);
-        rectF.inset((width - size) / 2f, (height - size) / 2f);
-        Matrix matrix = new Matrix();
-        matrix.setTranslate(rectF.left, rectF.top);
-        matrix.preScale((float) size / width, (float) size / height);
-        BitmapShader shader = new BitmapShader(src, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
-        shader.setLocalMatrix(matrix);
-        paint.setShader(shader);
-        Canvas canvas = new Canvas(ret);
-        canvas.drawRoundRect(rectF, center, center, paint);
-        if (borderSize > 0) {
-            paint.setShader(null);
-            paint.setColor(borderColor);
-            paint.setStyle(Paint.Style.STROKE);
-            paint.setStrokeWidth(borderSize);
-            float radius = center - borderSize / 2f;
-            canvas.drawCircle(width / 2f, height / 2f, radius, paint);
-        }
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the round corner bitmap.
-     *
-     * @param src    The source of bitmap.
-     * @param radius The radius of corner.
-     * @return the round corner bitmap
-     */
-    public static Bitmap toRoundCorner(final Bitmap src, final float radius) {
-        return toRoundCorner(src, radius, 0, 0, false);
-    }
-
-    /**
-     * Return the round corner bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param radius  The radius of corner.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the round corner bitmap
-     */
-    public static Bitmap toRoundCorner(final Bitmap src,
-                                       final float radius,
-                                       final boolean recycle) {
-        return toRoundCorner(src, radius, 0, 0, recycle);
-    }
-
-    /**
-     * Return the round corner bitmap.
-     *
-     * @param src         The source of bitmap.
-     * @param radius      The radius of corner.
-     * @param borderSize  The size of border.
-     * @param borderColor The color of border.
-     * @return the round corner bitmap
-     */
-    public static Bitmap toRoundCorner(final Bitmap src,
-                                       final float radius,
-                                       @IntRange(from = 0) int borderSize,
-                                       @ColorInt int borderColor) {
-        return toRoundCorner(src, radius, borderSize, borderColor, false);
-    }
-
-    /**
-     * Return the round corner bitmap.
-     *
-     * @param src         The source of bitmap.
-     * @param radius      The radius of corner.
-     * @param borderSize  The size of border.
-     * @param borderColor The color of border.
-     * @param recycle     True to recycle the source of bitmap, false otherwise.
-     * @return the round corner bitmap
-     */
-    public static Bitmap toRoundCorner(final Bitmap src,
-                                       final float radius,
-                                       @IntRange(from = 0) int borderSize,
-                                       @ColorInt int borderColor,
-                                       final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        int width = src.getWidth();
-        int height = src.getHeight();
-        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
-        BitmapShader shader = new BitmapShader(src, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
-        paint.setShader(shader);
-        Canvas canvas = new Canvas(ret);
-        RectF rectF = new RectF(0, 0, width, height);
-        float halfBorderSize = borderSize / 2f;
-        rectF.inset(halfBorderSize, halfBorderSize);
-        canvas.drawRoundRect(rectF, radius, radius, paint);
-        if (borderSize > 0) {
-            paint.setShader(null);
-            paint.setColor(borderColor);
-            paint.setStyle(Paint.Style.STROKE);
-            paint.setStrokeWidth(borderSize);
-            paint.setStrokeCap(Paint.Cap.ROUND);
-            canvas.drawRoundRect(rectF, radius, radius, paint);
-        }
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the round corner bitmap with border.
-     *
-     * @param src          The source of bitmap.
-     * @param borderSize   The size of border.
-     * @param color        The color of border.
-     * @param cornerRadius The radius of corner.
-     * @return the round corner bitmap with border
-     */
-    public static Bitmap addCornerBorder(final Bitmap src,
-                                         @IntRange(from = 1) final int borderSize,
-                                         @ColorInt final int color,
-                                         @FloatRange(from = 0) final float cornerRadius) {
-        return addBorder(src, borderSize, color, false, cornerRadius, false);
-    }
-
-    /**
-     * Return the round corner bitmap with border.
-     *
-     * @param src          The source of bitmap.
-     * @param borderSize   The size of border.
-     * @param color        The color of border.
-     * @param cornerRadius The radius of corner.
-     * @param recycle      True to recycle the source of bitmap, false otherwise.
-     * @return the round corner bitmap with border
-     */
-    public static Bitmap addCornerBorder(final Bitmap src,
-                                         @IntRange(from = 1) final int borderSize,
-                                         @ColorInt final int color,
-                                         @FloatRange(from = 0) final float cornerRadius,
-                                         final boolean recycle) {
-        return addBorder(src, borderSize, color, false, cornerRadius, recycle);
-    }
-
-    /**
-     * Return the round bitmap with border.
-     *
-     * @param src        The source of bitmap.
-     * @param borderSize The size of border.
-     * @param color      The color of border.
-     * @return the round bitmap with border
-     */
-    public static Bitmap addCircleBorder(final Bitmap src,
-                                         @IntRange(from = 1) final int borderSize,
-                                         @ColorInt final int color) {
-        return addBorder(src, borderSize, color, true, 0, false);
-    }
-
-    /**
-     * Return the round bitmap with border.
-     *
-     * @param src        The source of bitmap.
-     * @param borderSize The size of border.
-     * @param color      The color of border.
-     * @param recycle    True to recycle the source of bitmap, false otherwise.
-     * @return the round bitmap with border
-     */
-    public static Bitmap addCircleBorder(final Bitmap src,
-                                         @IntRange(from = 1) final int borderSize,
-                                         @ColorInt final int color,
-                                         final boolean recycle) {
-        return addBorder(src, borderSize, color, true, 0, recycle);
-    }
-
-    /**
-     * Return the bitmap with border.
-     *
-     * @param src          The source of bitmap.
-     * @param borderSize   The size of border.
-     * @param color        The color of border.
-     * @param isCircle     True to draw circle, false to draw corner.
-     * @param cornerRadius The radius of corner.
-     * @param recycle      True to recycle the source of bitmap, false otherwise.
-     * @return the bitmap with border
-     */
-    private static Bitmap addBorder(final Bitmap src,
-                                    @IntRange(from = 1) final int borderSize,
-                                    @ColorInt final int color,
-                                    final boolean isCircle,
-                                    final float cornerRadius,
-                                    final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
-        int width = ret.getWidth();
-        int height = ret.getHeight();
-        Canvas canvas = new Canvas(ret);
-        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        paint.setColor(color);
-        paint.setStyle(Paint.Style.STROKE);
-        paint.setStrokeWidth(borderSize);
-        if (isCircle) {
-            float radius = Math.min(width, height) / 2f - borderSize / 2f;
-            canvas.drawCircle(width / 2f, height / 2f, radius, paint);
-        } else {
-            int halfBorderSize = borderSize >> 1;
-            RectF rectF = new RectF(halfBorderSize, halfBorderSize,
-                    width - halfBorderSize, height - halfBorderSize);
-            canvas.drawRoundRect(rectF, cornerRadius, cornerRadius, paint);
-        }
-        return ret;
-    }
-
-    /**
-     * Return the bitmap with reflection.
-     *
-     * @param src              The source of bitmap.
-     * @param reflectionHeight The height of reflection.
-     * @return the bitmap with reflection
-     */
-    public static Bitmap addReflection(final Bitmap src, final int reflectionHeight) {
-        return addReflection(src, reflectionHeight, false);
-    }
-
-    /**
-     * Return the bitmap with reflection.
-     *
-     * @param src              The source of bitmap.
-     * @param reflectionHeight The height of reflection.
-     * @param recycle          True to recycle the source of bitmap, false otherwise.
-     * @return the bitmap with reflection
-     */
-    public static Bitmap addReflection(final Bitmap src,
-                                       final int reflectionHeight,
-                                       final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        final int REFLECTION_GAP = 0;
-        int srcWidth = src.getWidth();
-        int srcHeight = src.getHeight();
-        Matrix matrix = new Matrix();
-        matrix.preScale(1, -1);
-        Bitmap reflectionBitmap = Bitmap.createBitmap(src, 0, srcHeight - reflectionHeight,
-                srcWidth, reflectionHeight, matrix, false);
-        Bitmap ret = Bitmap.createBitmap(srcWidth, srcHeight + reflectionHeight, src.getConfig());
-        Canvas canvas = new Canvas(ret);
-        canvas.drawBitmap(src, 0, 0, null);
-        canvas.drawBitmap(reflectionBitmap, 0, srcHeight + REFLECTION_GAP, null);
-        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        LinearGradient shader = new LinearGradient(
-                0, srcHeight,
-                0, ret.getHeight() + REFLECTION_GAP,
-                0x70FFFFFF,
-                0x00FFFFFF,
-                Shader.TileMode.MIRROR);
-        paint.setShader(shader);
-        paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.DST_IN));
-        canvas.drawRect(0, srcHeight + REFLECTION_GAP, srcWidth, ret.getHeight(), paint);
-        if (!reflectionBitmap.isRecycled()) reflectionBitmap.recycle();
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the bitmap with text watermarking.
-     *
-     * @param src      The source of bitmap.
-     * @param content  The content of text.
-     * @param textSize The size of text.
-     * @param color    The color of text.
-     * @param x        The x coordinate of the first pixel.
-     * @param y        The y coordinate of the first pixel.
-     * @return the bitmap with text watermarking
-     */
-    public static Bitmap addTextWatermark(final Bitmap src,
-                                          final String content,
-                                          final int textSize,
-                                          @ColorInt final int color,
-                                          final float x,
-                                          final float y) {
-        return addTextWatermark(src, content, textSize, color, x, y, false);
-    }
-
-    /**
-     * Return the bitmap with text watermarking.
-     *
-     * @param src      The source of bitmap.
-     * @param content  The content of text.
-     * @param textSize The size of text.
-     * @param color    The color of text.
-     * @param x        The x coordinate of the first pixel.
-     * @param y        The y coordinate of the first pixel.
-     * @param recycle  True to recycle the source of bitmap, false otherwise.
-     * @return the bitmap with text watermarking
-     */
-    public static Bitmap addTextWatermark(final Bitmap src,
-                                          final String content,
-                                          final float textSize,
-                                          @ColorInt final int color,
-                                          final float x,
-                                          final float y,
-                                          final boolean recycle) {
-        if (isEmptyBitmap(src) || content == null) return null;
-        Bitmap ret = src.copy(src.getConfig(), true);
-        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        Canvas canvas = new Canvas(ret);
-        paint.setColor(color);
-        paint.setTextSize(textSize);
-        Rect bounds = new Rect();
-        paint.getTextBounds(content, 0, content.length(), bounds);
-        canvas.drawText(content, x, y + textSize, paint);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the bitmap with image watermarking.
-     *
-     * @param src       The source of bitmap.
-     * @param watermark The image watermarking.
-     * @param x         The x coordinate of the first pixel.
-     * @param y         The y coordinate of the first pixel.
-     * @param alpha     The alpha of watermark.
-     * @return the bitmap with image watermarking
-     */
-    public static Bitmap addImageWatermark(final Bitmap src,
-                                           final Bitmap watermark,
-                                           final int x, final int y,
-                                           final int alpha) {
-        return addImageWatermark(src, watermark, x, y, alpha, false);
-    }
-
-    /**
-     * Return the bitmap with image watermarking.
-     *
-     * @param src       The source of bitmap.
-     * @param watermark The image watermarking.
-     * @param x         The x coordinate of the first pixel.
-     * @param y         The y coordinate of the first pixel.
-     * @param alpha     The alpha of watermark.
-     * @param recycle   True to recycle the source of bitmap, false otherwise.
-     * @return the bitmap with image watermarking
-     */
-    public static Bitmap addImageWatermark(final Bitmap src,
-                                           final Bitmap watermark,
-                                           final int x,
-                                           final int y,
-                                           final int alpha,
-                                           final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = src.copy(src.getConfig(), true);
-        if (!isEmptyBitmap(watermark)) {
-            Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
-            Canvas canvas = new Canvas(ret);
-            paint.setAlpha(alpha);
-            canvas.drawBitmap(watermark, x, y, paint);
-        }
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the alpha bitmap.
-     *
-     * @param src The source of bitmap.
-     * @return the alpha bitmap
-     */
-    public static Bitmap toAlpha(final Bitmap src) {
-        return toAlpha(src, false);
-    }
-
-    /**
-     * Return the alpha bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the alpha bitmap
-     */
-    public static Bitmap toAlpha(final Bitmap src, final Boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = src.extractAlpha();
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the gray bitmap.
-     *
-     * @param src The source of bitmap.
-     * @return the gray bitmap
-     */
-    public static Bitmap toGray(final Bitmap src) {
-        return toGray(src, false);
-    }
-
-    /**
-     * Return the gray bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the gray bitmap
-     */
-    public static Bitmap toGray(final Bitmap src, final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        Bitmap ret = Bitmap.createBitmap(src.getWidth(), src.getHeight(), src.getConfig());
-        Canvas canvas = new Canvas(ret);
-        Paint paint = new Paint();
-        ColorMatrix colorMatrix = new ColorMatrix();
-        colorMatrix.setSaturation(0);
-        ColorMatrixColorFilter colorMatrixColorFilter = new ColorMatrixColorFilter(colorMatrix);
-        paint.setColorFilter(colorMatrixColorFilter);
-        canvas.drawBitmap(src, 0, 0, paint);
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the blur bitmap fast.
-     * <p>zoom out, blur, zoom in</p>
-     *
-     * @param src    The source of bitmap.
-     * @param scale  The scale(0...1).
-     * @param radius The radius(0...25).
-     * @return the blur bitmap
-     */
-    public static Bitmap fastBlur(final Bitmap src,
-                                  @FloatRange(
-                                          from = 0, to = 1, fromInclusive = false
-                                  ) final float scale,
-                                  @FloatRange(
-                                          from = 0, to = 25, fromInclusive = false
-                                  ) final float radius) {
-        return fastBlur(src, scale, radius, false);
-    }
-
-    /**
-     * Return the blur bitmap fast.
-     * <p>zoom out, blur, zoom in</p>
-     *
-     * @param src     The source of bitmap.
-     * @param scale   The scale(0...1).
-     * @param radius  The radius(0...25).
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the blur bitmap
-     */
-    public static Bitmap fastBlur(final Bitmap src,
-                                  @FloatRange(
-                                          from = 0, to = 1, fromInclusive = false
-                                  ) final float scale,
-                                  @FloatRange(
-                                          from = 0, to = 25, fromInclusive = false
-                                  ) final float radius,
-                                  final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        int width = src.getWidth();
-        int height = src.getHeight();
-        Matrix matrix = new Matrix();
-        matrix.setScale(scale, scale);
-        Bitmap scaleBitmap =
-                Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
-        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.ANTI_ALIAS_FLAG);
-        Canvas canvas = new Canvas();
-        PorterDuffColorFilter filter = new PorterDuffColorFilter(
-                Color.TRANSPARENT, PorterDuff.Mode.SRC_ATOP);
-        paint.setColorFilter(filter);
-        canvas.scale(scale, scale);
-        canvas.drawBitmap(scaleBitmap, 0, 0, paint);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            scaleBitmap = renderScriptBlur(scaleBitmap, radius, recycle);
-        } else {
-            scaleBitmap = stackBlur(scaleBitmap, (int) radius, recycle);
-        }
-        if (scale == 1) {
-            if (recycle && !src.isRecycled()) src.recycle();
-            return scaleBitmap;
-        }
-        Bitmap ret = Bitmap.createScaledBitmap(scaleBitmap, width, height, true);
-        if (!scaleBitmap.isRecycled()) scaleBitmap.recycle();
-        if (recycle && !src.isRecycled()) src.recycle();
-        return ret;
-    }
-
-    /**
-     * Return the blur bitmap using render script.
-     *
-     * @param src    The source of bitmap.
-     * @param radius The radius(0...25).
-     * @return the blur bitmap
-     */
-    @RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-    public static Bitmap renderScriptBlur(final Bitmap src,
-                                          @FloatRange(
-                                                  from = 0, to = 25, fromInclusive = false
-                                          ) final float radius) {
-        return renderScriptBlur(src, radius, false);
-    }
-
-    /**
-     * Return the blur bitmap using render script.
-     *
-     * @param src     The source of bitmap.
-     * @param radius  The radius(0...25).
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the blur bitmap
-     */
-    @RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-    public static Bitmap renderScriptBlur(final Bitmap src,
-                                          @FloatRange(
-                                                  from = 0, to = 25, fromInclusive = false
-                                          ) final float radius,
-                                          final boolean recycle) {
-        RenderScript rs = null;
-        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
-        try {
-            rs = RenderScript.create(Utils.getApp());
-            rs.setMessageHandler(new RenderScript.RSMessageHandler());
-            Allocation input = Allocation.createFromBitmap(rs,
-                    ret,
-                    Allocation.MipmapControl.MIPMAP_NONE,
-                    Allocation.USAGE_SCRIPT);
-            Allocation output = Allocation.createTyped(rs, input.getType());
-            ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
-            blurScript.setInput(input);
-            blurScript.setRadius(radius);
-            blurScript.forEach(output);
-            output.copyTo(ret);
-        } finally {
-            if (rs != null) {
-                rs.destroy();
-            }
-        }
-        return ret;
-    }
-
-    /**
-     * Return the blur bitmap using stack.
-     *
-     * @param src    The source of bitmap.
-     * @param radius The radius(0...25).
-     * @return the blur bitmap
-     */
-    public static Bitmap stackBlur(final Bitmap src, final int radius) {
-        return stackBlur(src, radius, false);
-    }
-
-    /**
-     * Return the blur bitmap using stack.
-     *
-     * @param src     The source of bitmap.
-     * @param radius  The radius(0...25).
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the blur bitmap
-     */
-    public static Bitmap stackBlur(final Bitmap src, int radius, final boolean recycle) {
-        Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
-        if (radius < 1) {
-            radius = 1;
-        }
-        int w = ret.getWidth();
-        int h = ret.getHeight();
-
-        int[] pix = new int[w * h];
-        ret.getPixels(pix, 0, w, 0, 0, w, h);
-
-        int wm = w - 1;
-        int hm = h - 1;
-        int wh = w * h;
-        int div = radius + radius + 1;
-
-        int r[] = new int[wh];
-        int g[] = new int[wh];
-        int b[] = new int[wh];
-        int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
-        int vmin[] = new int[Math.max(w, h)];
-
-        int divsum = (div + 1) >> 1;
-        divsum *= divsum;
-        int dv[] = new int[256 * divsum];
-        for (i = 0; i < 256 * divsum; i++) {
-            dv[i] = (i / divsum);
-        }
-
-        yw = yi = 0;
-
-        int[][] stack = new int[div][3];
-        int stackpointer;
-        int stackstart;
-        int[] sir;
-        int rbs;
-        int r1 = radius + 1;
-        int routsum, goutsum, boutsum;
-        int rinsum, ginsum, binsum;
-
-        for (y = 0; y < h; y++) {
-            rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
-            for (i = -radius; i <= radius; i++) {
-                p = pix[yi + Math.min(wm, Math.max(i, 0))];
-                sir = stack[i + radius];
-                sir[0] = (p & 0xff0000) >> 16;
-                sir[1] = (p & 0x00ff00) >> 8;
-                sir[2] = (p & 0x0000ff);
-                rbs = r1 - Math.abs(i);
-                rsum += sir[0] * rbs;
-                gsum += sir[1] * rbs;
-                bsum += sir[2] * rbs;
-                if (i > 0) {
-                    rinsum += sir[0];
-                    ginsum += sir[1];
-                    binsum += sir[2];
-                } else {
-                    routsum += sir[0];
-                    goutsum += sir[1];
-                    boutsum += sir[2];
-                }
-            }
-            stackpointer = radius;
-
-            for (x = 0; x < w; x++) {
-
-                r[yi] = dv[rsum];
-                g[yi] = dv[gsum];
-                b[yi] = dv[bsum];
-
-                rsum -= routsum;
-                gsum -= goutsum;
-                bsum -= boutsum;
-
-                stackstart = stackpointer - radius + div;
-                sir = stack[stackstart % div];
-
-                routsum -= sir[0];
-                goutsum -= sir[1];
-                boutsum -= sir[2];
-
-                if (y == 0) {
-                    vmin[x] = Math.min(x + radius + 1, wm);
-                }
-                p = pix[yw + vmin[x]];
-
-                sir[0] = (p & 0xff0000) >> 16;
-                sir[1] = (p & 0x00ff00) >> 8;
-                sir[2] = (p & 0x0000ff);
-
-                rinsum += sir[0];
-                ginsum += sir[1];
-                binsum += sir[2];
-
-                rsum += rinsum;
-                gsum += ginsum;
-                bsum += binsum;
-
-                stackpointer = (stackpointer + 1) % div;
-                sir = stack[(stackpointer) % div];
-
-                routsum += sir[0];
-                goutsum += sir[1];
-                boutsum += sir[2];
-
-                rinsum -= sir[0];
-                ginsum -= sir[1];
-                binsum -= sir[2];
-
-                yi++;
-            }
-            yw += w;
-        }
-        for (x = 0; x < w; x++) {
-            rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
-            yp = -radius * w;
-            for (i = -radius; i <= radius; i++) {
-                yi = Math.max(0, yp) + x;
-
-                sir = stack[i + radius];
-
-                sir[0] = r[yi];
-                sir[1] = g[yi];
-                sir[2] = b[yi];
-
-                rbs = r1 - Math.abs(i);
-
-                rsum += r[yi] * rbs;
-                gsum += g[yi] * rbs;
-                bsum += b[yi] * rbs;
-
-                if (i > 0) {
-                    rinsum += sir[0];
-                    ginsum += sir[1];
-                    binsum += sir[2];
-                } else {
-                    routsum += sir[0];
-                    goutsum += sir[1];
-                    boutsum += sir[2];
-                }
-
-                if (i < hm) {
-                    yp += w;
-                }
-            }
-            yi = x;
-            stackpointer = radius;
-            for (y = 0; y < h; y++) {
-                // Preserve alpha channel: ( 0xff000000 & pix[yi] )
-                pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];
-
-                rsum -= routsum;
-                gsum -= goutsum;
-                bsum -= boutsum;
-
-                stackstart = stackpointer - radius + div;
-                sir = stack[stackstart % div];
-
-                routsum -= sir[0];
-                goutsum -= sir[1];
-                boutsum -= sir[2];
-
-                if (x == 0) {
-                    vmin[y] = Math.min(y + r1, hm) * w;
-                }
-                p = x + vmin[y];
-
-                sir[0] = r[p];
-                sir[1] = g[p];
-                sir[2] = b[p];
-
-                rinsum += sir[0];
-                ginsum += sir[1];
-                binsum += sir[2];
-
-                rsum += rinsum;
-                gsum += ginsum;
-                bsum += binsum;
-
-                stackpointer = (stackpointer + 1) % div;
-                sir = stack[stackpointer];
-
-                routsum += sir[0];
-                goutsum += sir[1];
-                boutsum += sir[2];
-
-                rinsum -= sir[0];
-                ginsum -= sir[1];
-                binsum -= sir[2];
-
-                yi += w;
-            }
-        }
-        ret.setPixels(pix, 0, w, 0, 0, w, h);
-        return ret;
-    }
-
-    /**
-     * Save the bitmap.
-     *
-     * @param src      The source of bitmap.
-     * @param filePath The path of file.
-     * @param format   The format of the image.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean save(final Bitmap src,
-                               final String filePath,
-                               final CompressFormat format) {
-        return save(src, getFileByPath(filePath), format, false);
-    }
-
-    /**
-     * Save the bitmap.
-     *
-     * @param src    The source of bitmap.
-     * @param file   The file.
-     * @param format The format of the image.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean save(final Bitmap src, final File file, final CompressFormat format) {
-        return save(src, file, format, false);
-    }
-
-    /**
-     * Save the bitmap.
-     *
-     * @param src      The source of bitmap.
-     * @param filePath The path of file.
-     * @param format   The format of the image.
-     * @param recycle  True to recycle the source of bitmap, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean save(final Bitmap src,
-                               final String filePath,
-                               final CompressFormat format,
-                               final boolean recycle) {
-        return save(src, getFileByPath(filePath), format, recycle);
-    }
-
-    /**
-     * Save the bitmap.
-     *
-     * @param src     The source of bitmap.
-     * @param file    The file.
-     * @param format  The format of the image.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean save(final Bitmap src,
-                               final File file,
-                               final CompressFormat format,
-                               final boolean recycle) {
-        if (isEmptyBitmap(src) || !createFileByDeleteOldFile(file)) return false;
-        OutputStream os = null;
-        boolean ret = false;
-        try {
-            os = new BufferedOutputStream(new FileOutputStream(file));
-            ret = src.compress(format, 100, os);
-            if (recycle && !src.isRecycled()) src.recycle();
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        return ret;
-    }
-
-    /**
-     * Return whether it is a image according to the file name.
-     *
-     * @param file The file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isImage(final File file) {
-        return file != null && isImage(file.getPath());
-    }
-
-    /**
-     * Return whether it is a image according to the file name.
-     *
-     * @param filePath The path of file.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isImage(final String filePath) {
-        String path = filePath.toUpperCase();
-        return path.endsWith(".PNG") || path.endsWith(".JPG")
-                || path.endsWith(".JPEG") || path.endsWith(".BMP")
-                || path.endsWith(".GIF") || path.endsWith(".WEBP");
-    }
-
-    /**
-     * Return the type of image.
-     *
-     * @param filePath The path of file.
-     * @return the type of image
-     */
-    public static String getImageType(final String filePath) {
-        return getImageType(getFileByPath(filePath));
-    }
-
-    /**
-     * Return the type of image.
-     *
-     * @param file The file.
-     * @return the type of image
-     */
-    public static String getImageType(final File file) {
-        if (file == null) return "";
-        InputStream is = null;
-        try {
-            is = new FileInputStream(file);
-            String type = getImageType(is);
-            if (type != null) {
-                return type;
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (is != null) {
-                    is.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        return getFileExtension(file.getAbsolutePath()).toUpperCase();
-    }
-
-    private static String getFileExtension(final String filePath) {
-        if (isSpace(filePath)) return filePath;
-        int lastPoi = filePath.lastIndexOf('.');
-        int lastSep = filePath.lastIndexOf(File.separator);
-        if (lastPoi == -1 || lastSep >= lastPoi) return "";
-        return filePath.substring(lastPoi + 1);
-    }
-
-    private static String getImageType(final InputStream is) {
-        if (is == null) return null;
-        try {
-            byte[] bytes = new byte[8];
-            return is.read(bytes, 0, 8) != -1 ? getImageType(bytes) : null;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-    private static String getImageType(final byte[] bytes) {
-        if (isJPEG(bytes)) return "JPEG";
-        if (isGIF(bytes)) return "GIF";
-        if (isPNG(bytes)) return "PNG";
-        if (isBMP(bytes)) return "BMP";
-        return null;
-    }
-
-    private static boolean isJPEG(final byte[] b) {
-        return b.length >= 2
-                && (b[0] == (byte) 0xFF) && (b[1] == (byte) 0xD8);
-    }
-
-    private static boolean isGIF(final byte[] b) {
-        return b.length >= 6
-                && b[0] == 'G' && b[1] == 'I'
-                && b[2] == 'F' && b[3] == '8'
-                && (b[4] == '7' || b[4] == '9') && b[5] == 'a';
-    }
-
-    private static boolean isPNG(final byte[] b) {
-        return b.length >= 8
-                && (b[0] == (byte) 137 && b[1] == (byte) 80
-                && b[2] == (byte) 78 && b[3] == (byte) 71
-                && b[4] == (byte) 13 && b[5] == (byte) 10
-                && b[6] == (byte) 26 && b[7] == (byte) 10);
-    }
-
-    private static boolean isBMP(final byte[] b) {
-        return b.length >= 2
-                && (b[0] == 0x42) && (b[1] == 0x4d);
-    }
-
-    private static boolean isEmptyBitmap(final Bitmap src) {
-        return src == null || src.getWidth() == 0 || src.getHeight() == 0;
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // about compress
-    ///////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Return the compressed bitmap using scale.
-     *
-     * @param src       The source of bitmap.
-     * @param newWidth  The new width.
-     * @param newHeight The new height.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByScale(final Bitmap src,
-                                         final int newWidth,
-                                         final int newHeight) {
-        return scale(src, newWidth, newHeight, false);
-    }
-
-    /**
-     * Return the compressed bitmap using scale.
-     *
-     * @param src       The source of bitmap.
-     * @param newWidth  The new width.
-     * @param newHeight The new height.
-     * @param recycle   True to recycle the source of bitmap, false otherwise.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByScale(final Bitmap src,
-                                         final int newWidth,
-                                         final int newHeight,
-                                         final boolean recycle) {
-        return scale(src, newWidth, newHeight, recycle);
-    }
-
-    /**
-     * Return the compressed bitmap using scale.
-     *
-     * @param src         The source of bitmap.
-     * @param scaleWidth  The scale of width.
-     * @param scaleHeight The scale of height.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByScale(final Bitmap src,
-                                         final float scaleWidth,
-                                         final float scaleHeight) {
-        return scale(src, scaleWidth, scaleHeight, false);
-    }
-
-    /**
-     * Return the compressed bitmap using scale.
-     *
-     * @param src         The source of bitmap.
-     * @param scaleWidth  The scale of width.
-     * @param scaleHeight The scale of height.
-     * @param recycle     True to recycle the source of bitmap, false otherwise.
-     * @return he compressed bitmap
-     */
-    public static Bitmap compressByScale(final Bitmap src,
-                                         final float scaleWidth,
-                                         final float scaleHeight,
-                                         final boolean recycle) {
-        return scale(src, scaleWidth, scaleHeight, recycle);
-    }
-
-    /**
-     * Return the compressed bitmap using quality.
-     *
-     * @param src     The source of bitmap.
-     * @param quality The quality.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByQuality(final Bitmap src,
-                                           @IntRange(from = 0, to = 100) final int quality) {
-        return compressByQuality(src, quality, false);
-    }
-
-    /**
-     * Return the compressed bitmap using quality.
-     *
-     * @param src     The source of bitmap.
-     * @param quality The quality.
-     * @param recycle True to recycle the source of bitmap, false otherwise.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByQuality(final Bitmap src,
-                                           @IntRange(from = 0, to = 100) final int quality,
-                                           final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        src.compress(Bitmap.CompressFormat.JPEG, quality, baos);
-        byte[] bytes = baos.toByteArray();
-        if (recycle && !src.isRecycled()) src.recycle();
-        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
-    }
-
-    /**
-     * Return the compressed bitmap using quality.
-     *
-     * @param src         The source of bitmap.
-     * @param maxByteSize The maximum size of byte.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByQuality(final Bitmap src, final long maxByteSize) {
-        return compressByQuality(src, maxByteSize, false);
-    }
-
-    /**
-     * Return the compressed bitmap using quality.
-     *
-     * @param src         The source of bitmap.
-     * @param maxByteSize The maximum size of byte.
-     * @param recycle     True to recycle the source of bitmap, false otherwise.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressByQuality(final Bitmap src,
-                                           final long maxByteSize,
-                                           final boolean recycle) {
-        if (isEmptyBitmap(src) || maxByteSize <= 0) return null;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        src.compress(CompressFormat.JPEG, 100, baos);
-        byte[] bytes;
-        if (baos.size() <= maxByteSize) {
-            bytes = baos.toByteArray();
-        } else {
-            baos.reset();
-            src.compress(CompressFormat.JPEG, 0, baos);
-            if (baos.size() >= maxByteSize) {
-                bytes = baos.toByteArray();
-            } else {
-                // find the best quality using binary search
-                int st = 0;
-                int end = 100;
-                int mid = 0;
-                while (st < end) {
-                    mid = (st + end) / 2;
-                    baos.reset();
-                    src.compress(CompressFormat.JPEG, mid, baos);
-                    int len = baos.size();
-                    if (len == maxByteSize) {
-                        break;
-                    } else if (len > maxByteSize) {
-                        end = mid - 1;
-                    } else {
-                        st = mid + 1;
-                    }
-                }
-                if (end == mid - 1) {
-                    baos.reset();
-                    src.compress(CompressFormat.JPEG, st, baos);
-                }
-                bytes = baos.toByteArray();
-            }
-        }
-        if (recycle && !src.isRecycled()) src.recycle();
-        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
-    }
-
-    /**
-     * Return the compressed bitmap using sample size.
-     *
-     * @param src        The source of bitmap.
-     * @param sampleSize The sample size.
-     * @return the compressed bitmap
-     */
-
-    public static Bitmap compressBySampleSize(final Bitmap src, final int sampleSize) {
-        return compressBySampleSize(src, sampleSize, false);
-    }
-
-    /**
-     * Return the compressed bitmap using sample size.
-     *
-     * @param src        The source of bitmap.
-     * @param sampleSize The sample size.
-     * @param recycle    True to recycle the source of bitmap, false otherwise.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressBySampleSize(final Bitmap src,
-                                              final int sampleSize,
-                                              final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        options.inSampleSize = sampleSize;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
-        byte[] bytes = baos.toByteArray();
-        if (recycle && !src.isRecycled()) src.recycle();
-        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
-    }
-
-    /**
-     * Return the compressed bitmap using sample size.
-     *
-     * @param src       The source of bitmap.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressBySampleSize(final Bitmap src,
-                                              final int maxWidth,
-                                              final int maxHeight) {
-        return compressBySampleSize(src, maxWidth, maxHeight, false);
-    }
-
-    /**
-     * Return the compressed bitmap using sample size.
-     *
-     * @param src       The source of bitmap.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @param recycle   True to recycle the source of bitmap, false otherwise.
-     * @return the compressed bitmap
-     */
-    public static Bitmap compressBySampleSize(final Bitmap src,
-                                              final int maxWidth,
-                                              final int maxHeight,
-                                              final boolean recycle) {
-        if (isEmptyBitmap(src)) return null;
-        BitmapFactory.Options options = new BitmapFactory.Options();
-        options.inJustDecodeBounds = true;
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
-        byte[] bytes = baos.toByteArray();
-        BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
-        options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
-        options.inJustDecodeBounds = false;
-        if (recycle && !src.isRecycled()) src.recycle();
-        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
-    }
-
-    /**
-     * Return the sample size.
-     *
-     * @param options   The options.
-     * @param maxWidth  The maximum width.
-     * @param maxHeight The maximum height.
-     * @return the sample size
-     */
-    private static int calculateInSampleSize(final BitmapFactory.Options options,
-                                             final int maxWidth,
-                                             final int maxHeight) {
-        int height = options.outHeight;
-        int width = options.outWidth;
-        int inSampleSize = 1;
-        while ((width >>= 1) >= maxWidth && (height >>= 1) >= maxHeight) {
-            inSampleSize <<= 1;
-        }
-        return inSampleSize;
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean createFileByDeleteOldFile(final File file) {
-        if (file == null) return false;
-        if (file.exists() && !file.delete()) return false;
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static byte[] input2Byte(final InputStream is) {
-        if (is == null) return null;
-        try {
-            ByteArrayOutputStream os = new ByteArrayOutputStream();
-            byte[] b = new byte[1024];
-            int len;
-            while ((len = is.read(b, 0, 1024)) != -1) {
-                os.write(b, 0, len);
-            }
-            return os.toByteArray();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/IntentUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/IntentUtils.java
deleted file mode 100644
index 93e6d087ea..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/IntentUtils.java
+++ /dev/null
@@ -1,666 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.content.ComponentName;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.provider.MediaStore;
-import android.support.annotation.RequiresPermission;
-import android.support.v4.content.FileProvider;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.LinkedList;
-import java.util.List;
-
-import static android.Manifest.permission.CALL_PHONE;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/23
- *     desc  : utils about intent
- * </pre>
- */
-public final class IntentUtils {
-
-    private IntentUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return whether the intent is available.
-     *
-     * @param intent The intent.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isIntentAvailable(final Intent intent) {
-        return Utils.getApp()
-                .getPackageManager()
-                .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
-                .size() > 0;
-    }
-
-    /**
-     * Return the intent of install app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param filePath The path of file.
-     * @return the intent of install app
-     */
-    public static Intent getInstallAppIntent(final String filePath) {
-        return getInstallAppIntent(getFileByPath(filePath), false);
-    }
-
-    /**
-     * Return the intent of install app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param file The file.
-     * @return the intent of install app
-     */
-    public static Intent getInstallAppIntent(final File file) {
-        return getInstallAppIntent(file, false);
-    }
-
-    /**
-     * Return the intent of install app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param filePath  The path of file.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of install app
-     */
-    public static Intent getInstallAppIntent(final String filePath, final boolean isNewTask) {
-        return getInstallAppIntent(getFileByPath(filePath), isNewTask);
-    }
-
-    /**
-     * Return the intent of install app.
-     * <p>Target APIs greater than 25 must hold
-     * {@code <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />}</p>
-     *
-     * @param file      The file.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of install app
-     */
-    public static Intent getInstallAppIntent(final File file, final boolean isNewTask) {
-        if (file == null) return null;
-        Intent intent = new Intent(Intent.ACTION_VIEW);
-        Uri data;
-        String type = "application/vnd.android.package-archive";
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
-            data = Uri.fromFile(file);
-        } else {
-            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-            String authority = Utils.getApp().getPackageName() + ".utilcode.provider";
-            data = FileProvider.getUriForFile(Utils.getApp(), authority, file);
-        }
-        intent.setDataAndType(data, type);
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of uninstall app.
-     *
-     * @param packageName The name of the package.
-     * @return the intent of uninstall app
-     */
-    public static Intent getUninstallAppIntent(final String packageName) {
-        return getUninstallAppIntent(packageName, false);
-    }
-
-    /**
-     * Return the intent of uninstall app.
-     *
-     * @param packageName The name of the package.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of uninstall app
-     */
-    public static Intent getUninstallAppIntent(final String packageName, final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_DELETE);
-        intent.setData(Uri.parse("package:" + packageName));
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of launch app.
-     *
-     * @param packageName The name of the package.
-     * @return the intent of launch app
-     */
-    public static Intent getLaunchAppIntent(final String packageName) {
-        return getLaunchAppIntent(packageName, false);
-    }
-
-    /**
-     * Return the intent of launch app.
-     *
-     * @param packageName The name of the package.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of launch app
-     */
-    public static Intent getLaunchAppIntent(final String packageName, final boolean isNewTask) {
-        Intent intent = Utils.getApp().getPackageManager().getLaunchIntentForPackage(packageName);
-        if (intent == null) return null;
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of launch app details settings.
-     *
-     * @param packageName The name of the package.
-     * @return the intent of launch app details settings
-     */
-    public static Intent getLaunchAppDetailsSettingsIntent(final String packageName) {
-        return getLaunchAppDetailsSettingsIntent(packageName, false);
-    }
-
-    /**
-     * Return the intent of launch app details settings.
-     *
-     * @param packageName The name of the package.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of launch app details settings
-     */
-    public static Intent getLaunchAppDetailsSettingsIntent(final String packageName,
-                                                           final boolean isNewTask) {
-        Intent intent = new Intent("android.settings.APPLICATION_DETAILS_SETTINGS");
-        intent.setData(Uri.parse("package:" + packageName));
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of share text.
-     *
-     * @param content The content.
-     * @return the intent of share text
-     */
-    public static Intent getShareTextIntent(final String content) {
-        return getShareTextIntent(content, false);
-    }
-
-    /**
-     * Return the intent of share text.
-     *
-     * @param content   The content.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of share text
-     */
-
-    public static Intent getShareTextIntent(final String content, final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_SEND);
-        intent.setType("text/plain");
-        intent.putExtra(Intent.EXTRA_TEXT, content);
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of share image.
-     *
-     * @param content   The content.
-     * @param imagePath The path of image.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content, final String imagePath) {
-        return getShareImageIntent(content, imagePath, false);
-    }
-
-    /**
-     * Return the intent of share image.
-     *
-     * @param content   The content.
-     * @param imagePath The path of image.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content,
-                                             final String imagePath,
-                                             final boolean isNewTask) {
-        if (imagePath == null || imagePath.length() == 0) return null;
-        return getShareImageIntent(content, new File(imagePath), isNewTask);
-    }
-
-    /**
-     * Return the intent of share image.
-     *
-     * @param content The content.
-     * @param image   The file of image.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content, final File image) {
-        return getShareImageIntent(content, image, false);
-    }
-
-    /**
-     * Return the intent of share image.
-     *
-     * @param content   The content.
-     * @param image     The file of image.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content,
-                                             final File image,
-                                             final boolean isNewTask) {
-        if (image == null || !image.isFile()) return null;
-        return getShareImageIntent(content, file2Uri(image), isNewTask);
-    }
-
-    /**
-     * Return the intent of share image.
-     *
-     * @param content The content.
-     * @param uri     The uri of image.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content, final Uri uri) {
-        return getShareImageIntent(content, uri, false);
-    }
-
-    /**
-     * Return the intent of share image.
-     *
-     * @param content   The content.
-     * @param uri       The uri of image.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content,
-                                             final Uri uri,
-                                             final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_SEND);
-        intent.putExtra(Intent.EXTRA_TEXT, content);
-        intent.putExtra(Intent.EXTRA_STREAM, uri);
-        intent.setType("image/*");
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of share images.
-     *
-     * @param content    The content.
-     * @param imagePaths The paths of images.
-     * @return the intent of share images
-     */
-    public static Intent getShareImageIntent(final String content, final LinkedList<String> imagePaths) {
-        return getShareImageIntent(content, imagePaths, false);
-    }
-
-    /**
-     * Return the intent of share images.
-     *
-     * @param content    The content.
-     * @param imagePaths The paths of images.
-     * @param isNewTask  True to add flag of new task, false otherwise.
-     * @return the intent of share images
-     */
-    public static Intent getShareImageIntent(final String content,
-                                             final LinkedList<String> imagePaths,
-                                             final boolean isNewTask) {
-        if (imagePaths == null || imagePaths.isEmpty()) return null;
-        List<File> files = new ArrayList<>();
-        for (String imagePath : imagePaths) {
-            files.add(new File(imagePath));
-        }
-        return getShareImageIntent(content, files, isNewTask);
-    }
-
-    /**
-     * Return the intent of share images.
-     *
-     * @param content The content.
-     * @param images  The files of images.
-     * @return the intent of share images
-     */
-    public static Intent getShareImageIntent(final String content, final List<File> images) {
-        return getShareImageIntent(content, images, false);
-    }
-
-    /**
-     * Return the intent of share images.
-     *
-     * @param content   The content.
-     * @param images    The files of images.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of share images
-     */
-    public static Intent getShareImageIntent(final String content,
-                                             final List<File> images,
-                                             final boolean isNewTask) {
-        if (images == null || images.isEmpty()) return null;
-        ArrayList<Uri> uris = new ArrayList<>();
-        for (File image : images) {
-            if (!image.isFile()) continue;
-            uris.add(file2Uri(image));
-        }
-        return getShareImageIntent(content, uris, isNewTask);
-    }
-
-    /**
-     * Return the intent of share images.
-     *
-     * @param content The content.
-     * @param uris    The uris of images.
-     * @return the intent of share images
-     */
-    public static Intent getShareImageIntent(final String content, final ArrayList<Uri> uris) {
-        return getShareImageIntent(content, uris, false);
-    }
-
-    /**
-     * Return the intent of share images.
-     *
-     * @param content   The content.
-     * @param uris      The uris of image.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of share image
-     */
-    public static Intent getShareImageIntent(final String content,
-                                             final ArrayList<Uri> uris,
-                                             final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_SEND_MULTIPLE);
-        intent.putExtra(Intent.EXTRA_TEXT, content);
-        intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
-        intent.setType("image/*");
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of component.
-     *
-     * @param packageName The name of the package.
-     * @param className   The name of class.
-     * @return the intent of component
-     */
-    public static Intent getComponentIntent(final String packageName, final String className) {
-        return getComponentIntent(packageName, className, null, false);
-    }
-
-    /**
-     * Return the intent of component.
-     *
-     * @param packageName The name of the package.
-     * @param className   The name of class.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of component
-     */
-    public static Intent getComponentIntent(final String packageName,
-                                            final String className,
-                                            final boolean isNewTask) {
-        return getComponentIntent(packageName, className, null, isNewTask);
-    }
-
-    /**
-     * Return the intent of component.
-     *
-     * @param packageName The name of the package.
-     * @param className   The name of class.
-     * @param bundle      The Bundle of extras to add to this intent.
-     * @return the intent of component
-     */
-    public static Intent getComponentIntent(final String packageName,
-                                            final String className,
-                                            final Bundle bundle) {
-        return getComponentIntent(packageName, className, bundle, false);
-    }
-
-    /**
-     * Return the intent of component.
-     *
-     * @param packageName The name of the package.
-     * @param className   The name of class.
-     * @param bundle      The Bundle of extras to add to this intent.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of component
-     */
-    public static Intent getComponentIntent(final String packageName,
-                                            final String className,
-                                            final Bundle bundle,
-                                            final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_VIEW);
-        if (bundle != null) intent.putExtras(bundle);
-        ComponentName cn = new ComponentName(packageName, className);
-        intent.setComponent(cn);
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of shutdown.
-     * <p>Requires root permission
-     * or hold {@code android:sharedUserId="android.uid.system"},
-     * {@code <uses-permission android:name="android.permission.SHUTDOWN/>}
-     * in manifest.</p>
-     *
-     * @return the intent of shutdown
-     */
-    public static Intent getShutdownIntent() {
-        return getShutdownIntent(false);
-    }
-
-    /**
-     * Return the intent of shutdown.
-     * <p>Requires root permission
-     * or hold {@code android:sharedUserId="android.uid.system"},
-     * {@code <uses-permission android:name="android.permission.SHUTDOWN/>}
-     * in manifest.</p>
-     *
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of shutdown
-     */
-    public static Intent getShutdownIntent(final boolean isNewTask) {
-        Intent intent = new Intent("android.intent.action.ACTION_REQUEST_SHUTDOWN");
-        intent.putExtra("android.intent.extra.KEY_CONFIRM", false);
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of dial.
-     *
-     * @param phoneNumber The phone number.
-     * @return the intent of dial
-     */
-    public static Intent getDialIntent(final String phoneNumber) {
-        return getDialIntent(phoneNumber, false);
-    }
-
-    /**
-     * Return the intent of dial.
-     *
-     * @param phoneNumber The phone number.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of dial
-     */
-    public static Intent getDialIntent(final String phoneNumber, final boolean isNewTask) {
-        Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phoneNumber));
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of call.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.CALL_PHONE" />}</p>
-     *
-     * @param phoneNumber The phone number.
-     * @return the intent of call
-     */
-    @RequiresPermission(CALL_PHONE)
-    public static Intent getCallIntent(final String phoneNumber) {
-        return getCallIntent(phoneNumber, false);
-    }
-
-    /**
-     * Return the intent of call.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.CALL_PHONE" />}</p>
-     *
-     * @param phoneNumber The phone number.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of call
-     */
-    @RequiresPermission(CALL_PHONE)
-    public static Intent getCallIntent(final String phoneNumber, final boolean isNewTask) {
-        Intent intent = new Intent("android.intent.action.CALL", Uri.parse("tel:" + phoneNumber));
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of send SMS.
-     *
-     * @param phoneNumber The phone number.
-     * @param content     The content of SMS.
-     * @return the intent of send SMS
-     */
-    public static Intent getSendSmsIntent(final String phoneNumber, final String content) {
-        return getSendSmsIntent(phoneNumber, content, false);
-    }
-
-    /**
-     * Return the intent of send SMS.
-     *
-     * @param phoneNumber The phone number.
-     * @param content     The content of SMS.
-     * @param isNewTask   True to add flag of new task, false otherwise.
-     * @return the intent of send SMS
-     */
-    public static Intent getSendSmsIntent(final String phoneNumber,
-                                          final String content,
-                                          final boolean isNewTask) {
-        Uri uri = Uri.parse("smsto:" + phoneNumber);
-        Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
-        intent.putExtra("sms_body", content);
-        return getIntent(intent, isNewTask);
-    }
-
-    /**
-     * Return the intent of capture.
-     *
-     * @param outUri The uri of output.
-     * @return the intent of capture
-     */
-    public static Intent getCaptureIntent(final Uri outUri) {
-        return getCaptureIntent(outUri, false);
-    }
-
-    /**
-     * Return the intent of capture.
-     *
-     * @param outUri    The uri of output.
-     * @param isNewTask True to add flag of new task, false otherwise.
-     * @return the intent of capture
-     */
-    public static Intent getCaptureIntent(final Uri outUri, final boolean isNewTask) {
-        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
-        intent.putExtra(MediaStore.EXTRA_OUTPUT, outUri);
-        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-        return getIntent(intent, isNewTask);
-    }
-
-    private static Intent getIntent(final Intent intent, final boolean isNewTask) {
-        return isNewTask ? intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) : intent;
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static Uri file2Uri(final File file) {
-        if (file == null) return null;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-            String authority = Utils.getApp().getPackageName() + ".utilcode.provider";
-            return FileProvider.getUriForFile(Utils.getApp(), authority, file);
-        } else {
-            return Uri.fromFile(file);
-        }
-    }
-
-//    /**
-//     * 获取选择照片的 Intent
-//     *
-//     * @return
-//     */
-//    public static Intent getPickIntentWithGallery() {
-//        Intent intent = new Intent(Intent.ACTION_PICK);
-//        return intent.setType("image*//*");
-//    }
-//
-//    /**
-//     * 获取从文件中选择照片的 Intent
-//     *
-//     * @return
-//     */
-//    public static Intent getPickIntentWithDocuments() {
-//        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
-//        return intent.setType("image*//*");
-//    }
-//
-//
-//    public static Intent buildImageGetIntent(final Uri saveTo, final int outputX, final int outputY, final boolean returnData) {
-//        return buildImageGetIntent(saveTo, 1, 1, outputX, outputY, returnData);
-//    }
-//
-//    public static Intent buildImageGetIntent(Uri saveTo, int aspectX, int aspectY,
-//                                             int outputX, int outputY, boolean returnData) {
-//        Intent intent = new Intent();
-//        if (Build.VERSION.SDK_INT < 19) {
-//            intent.setAction(Intent.ACTION_GET_CONTENT);
-//        } else {
-//            intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
-//            intent.addCategory(Intent.CATEGORY_OPENABLE);
-//        }
-//        intent.setType("image*//*");
-//        intent.putExtra("output", saveTo);
-//        intent.putExtra("aspectX", aspectX);
-//        intent.putExtra("aspectY", aspectY);
-//        intent.putExtra("outputX", outputX);
-//        intent.putExtra("outputY", outputY);
-//        intent.putExtra("scale", true);
-//        intent.putExtra("return-data", returnData);
-//        intent.putExtra("outputFormat", Bitmap.CompressFormat.PNG.toString());
-//        return intent;
-//    }
-//
-//    public static Intent buildImageCropIntent(final Uri uriFrom, final Uri uriTo, final int outputX, final int outputY, final boolean returnData) {
-//        return buildImageCropIntent(uriFrom, uriTo, 1, 1, outputX, outputY, returnData);
-//    }
-//
-//    public static Intent buildImageCropIntent(Uri uriFrom, Uri uriTo, int aspectX, int aspectY,
-//                                              int outputX, int outputY, boolean returnData) {
-//        Intent intent = new Intent("com.android.camera.action.CROP");
-//        intent.setDataAndType(uriFrom, "image*//*");
-//        intent.putExtra("crop", "true");
-//        intent.putExtra("output", uriTo);
-//        intent.putExtra("aspectX", aspectX);
-//        intent.putExtra("aspectY", aspectY);
-//        intent.putExtra("outputX", outputX);
-//        intent.putExtra("outputY", outputY);
-//        intent.putExtra("scale", true);
-//        intent.putExtra("return-data", returnData);
-//        intent.putExtra("outputFormat", Bitmap.CompressFormat.PNG.toString());
-//        return intent;
-//    }
-//
-//    public static Intent buildImageCaptureIntent(final Uri uri) {
-//        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
-//        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
-//        return intent;
-//    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
deleted file mode 100644
index d84bf1422f..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java
+++ /dev/null
@@ -1,339 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.TargetApi;
-import android.app.Activity;
-import android.content.Context;
-import android.content.res.Resources;
-import android.graphics.Rect;
-import android.os.Build;
-import android.util.Log;
-import android.view.View;
-import android.view.ViewTreeObserver.OnGlobalLayoutListener;
-import android.view.WindowManager;
-import android.view.inputmethod.InputMethodManager;
-import android.widget.FrameLayout;
-
-import java.lang.reflect.Field;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/02
- *     desc  : utils about keyboard
- * </pre>
- */
-public final class KeyboardUtils {
-
-    private static int                        sDecorViewInvisibleHeightPre;
-    private static OnGlobalLayoutListener     onGlobalLayoutListener;
-    private static OnSoftInputChangedListener onSoftInputChangedListener;
-    private static int                        sContentViewInvisibleHeightPre5497;
-
-    private KeyboardUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Show the soft input.
-     *
-     * @param activity The activity.
-     */
-    public static void showSoftInput(final Activity activity) {
-        InputMethodManager imm =
-                (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
-        if (imm == null) return;
-        View view = activity.getCurrentFocus();
-        if (view == null) {
-            view = new View(activity);
-            view.setFocusable(true);
-            view.setFocusableInTouchMode(true);
-            view.requestFocus();
-        }
-        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
-    }
-
-    /**
-     * Show the soft input.
-     *
-     * @param view The view.
-     */
-    public static void showSoftInput(final View view) {
-        InputMethodManager imm =
-                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
-        view.setFocusable(true);
-        view.setFocusableInTouchMode(true);
-        view.requestFocus();
-        //noinspection ConstantConditions
-        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
-    }
-
-    /**
-     * Show the soft input using toggle.
-     *
-     * @param activity The activity.
-     */
-    public static void showSoftInputUsingToggle(final Activity activity) {
-        if (isSoftInputVisible(activity)) return;
-        toggleSoftInput();
-    }
-
-    /**
-     * Hide the soft input.
-     *
-     * @param activity The activity.
-     */
-    public static void hideSoftInput(final Activity activity) {
-        InputMethodManager imm =
-                (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
-        if (imm == null) return;
-        View view = activity.getCurrentFocus();
-        if (view == null) view = new View(activity);
-        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
-    }
-
-    /**
-     * Hide the soft input.
-     *
-     * @param view The view.
-     */
-    public static void hideSoftInput(final View view) {
-        InputMethodManager imm =
-                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
-        //noinspection ConstantConditions
-        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
-    }
-
-    /**
-     * Hide the soft input.
-     *
-     * @param activity The activity.
-     */
-    public static void hideSoftInputUsingToggle(final Activity activity) {
-        if (!isSoftInputVisible(activity)) return;
-        toggleSoftInput();
-    }
-
-    /**
-     * Toggle the soft input display or not.
-     */
-    public static void toggleSoftInput() {
-        InputMethodManager imm =
-                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
-        //noinspection ConstantConditions
-        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
-    }
-
-    /**
-     * Return whether soft input is visible.
-     *
-     * @param activity The activity.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isSoftInputVisible(final Activity activity) {
-        return getDecorViewInvisibleHeight(activity) > 0;
-    }
-
-    private static int sDecorViewDelta = 0;
-
-    private static int getDecorViewInvisibleHeight(final Activity activity) {
-        final View decorView = activity.getWindow().getDecorView();
-        if (decorView == null) return sDecorViewInvisibleHeightPre;
-        final Rect outRect = new Rect();
-        decorView.getWindowVisibleDisplayFrame(outRect);
-        Log.d("KeyboardUtils", "getDecorViewInvisibleHeight: "
-                + (decorView.getBottom() - outRect.bottom));
-        int delta = Math.abs(decorView.getBottom() - outRect.bottom);
-        if (delta <= getNavBarHeight()) {
-            sDecorViewDelta = delta;
-            return 0;
-        }
-        return delta - sDecorViewDelta;
-    }
-
-    /**
-     * Register soft input changed listener.
-     *
-     * @param activity The activity.
-     * @param listener The soft input changed listener.
-     */
-    public static void registerSoftInputChangedListener(final Activity activity,
-                                                        final OnSoftInputChangedListener listener) {
-        final int flags = activity.getWindow().getAttributes().flags;
-        if ((flags & WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS) != 0) {
-            activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
-        }
-        final FrameLayout contentView = activity.findViewById(android.R.id.content);
-        sDecorViewInvisibleHeightPre = getDecorViewInvisibleHeight(activity);
-        onSoftInputChangedListener = listener;
-        onGlobalLayoutListener = new OnGlobalLayoutListener() {
-            @Override
-            public void onGlobalLayout() {
-                if (onSoftInputChangedListener != null) {
-                    int height = getDecorViewInvisibleHeight(activity);
-                    if (sDecorViewInvisibleHeightPre != height) {
-                        onSoftInputChangedListener.onSoftInputChanged(height);
-                        sDecorViewInvisibleHeightPre = height;
-                    }
-                }
-            }
-        };
-        contentView.getViewTreeObserver()
-                .addOnGlobalLayoutListener(onGlobalLayoutListener);
-    }
-
-    /**
-     * Unregister soft input changed listener.
-     *
-     * @param activity The activity.
-     */
-    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
-    public static void unregisterSoftInputChangedListener(final Activity activity) {
-        final View contentView = activity.findViewById(android.R.id.content);
-        contentView.getViewTreeObserver().removeOnGlobalLayoutListener(onGlobalLayoutListener);
-        onSoftInputChangedListener = null;
-        onGlobalLayoutListener = null;
-    }
-
-    /**
-     * Fix the bug of 5497 in Android.
-     * <p>Don't set adjustResize</p>
-     *
-     * @param activity The activity.
-     */
-    public static void fixAndroidBug5497(final Activity activity) {
-//        Window window = activity.getWindow();
-//        int softInputMode = window.getAttributes().softInputMode;
-//        window.setSoftInputMode(softInputMode & ~WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
-        final FrameLayout contentView = activity.findViewById(android.R.id.content);
-        final View contentViewChild = contentView.getChildAt(0);
-        final int paddingBottom = contentViewChild.getPaddingBottom();
-        sContentViewInvisibleHeightPre5497 = getContentViewInvisibleHeight(activity);
-        contentView.getViewTreeObserver()
-                .addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
-                    @Override
-                    public void onGlobalLayout() {
-                        int height = getContentViewInvisibleHeight(activity);
-                        if (sContentViewInvisibleHeightPre5497 != height) {
-                            contentViewChild.setPadding(
-                                    contentViewChild.getPaddingLeft(),
-                                    contentViewChild.getPaddingTop(),
-                                    contentViewChild.getPaddingRight(),
-                                    paddingBottom + getDecorViewInvisibleHeight(activity)
-                            );
-                            sContentViewInvisibleHeightPre5497 = height;
-                        }
-                    }
-                });
-    }
-
-    private static int getContentViewInvisibleHeight(final Activity activity) {
-        final View contentView = activity.findViewById(android.R.id.content);
-        if (contentView == null) return sContentViewInvisibleHeightPre5497;
-        final Rect outRect = new Rect();
-        contentView.getWindowVisibleDisplayFrame(outRect);
-        Log.d("KeyboardUtils", "getContentViewInvisibleHeight: "
-                + (contentView.getBottom() - outRect.bottom));
-        int delta = Math.abs(contentView.getBottom() - outRect.bottom);
-        if (delta <= getStatusBarHeight() + getNavBarHeight()) {
-            return 0;
-        }
-        return delta;
-    }
-
-    /**
-     * Fix the leaks of soft input.
-     * <p>Call the function in {@link Activity#onDestroy()}.</p>
-     *
-     * @param context The context.
-     */
-    public static void fixSoftInputLeaks(final Context context) {
-        if (context == null) return;
-        InputMethodManager imm =
-                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
-        String[] strArr = new String[]{"mCurRootView", "mServedView", "mNextServedView", "mLastSrvView"};
-        for (int i = 0; i < 4; i++) {
-            try {
-                //noinspection ConstantConditions
-                Field declaredField = imm.getClass().getDeclaredField(strArr[i]);
-                if (declaredField == null) continue;
-                if (!declaredField.isAccessible()) {
-                    declaredField.setAccessible(true);
-                }
-                Object obj = declaredField.get(imm);
-                if (obj == null || !(obj instanceof View)) continue;
-                View view = (View) obj;
-                if (view.getContext() == context) {
-                    declaredField.set(imm, null);
-                } else {
-                    return;
-                }
-            } catch (Throwable th) {
-                th.printStackTrace();
-            }
-        }
-    }
-
-    /**
-     * Click blankj area to hide soft input.
-     * <p>Copy the following code in ur activity.</p>
-     */
-    public static void clickBlankArea2HideSoftInput() {
-        Log.i("KeyboardUtils", "Please refer to the following code.");
-        /*
-        @Override
-        public boolean dispatchTouchEvent(MotionEvent ev) {
-            if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-                View v = getCurrentFocus();
-                if (isShouldHideKeyboard(v, ev)) {
-                    InputMethodManager imm =
-                            (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-                    imm.hideSoftInputFromWindow(v.getWindowToken(),
-                            InputMethodManager.HIDE_NOT_ALWAYS
-                    );
-                }
-            }
-            return super.dispatchTouchEvent(ev);
-        }
-
-        // Return whether touch the view.
-        private boolean isShouldHideKeyboard(View v, MotionEvent event) {
-            if (v != null && (v instanceof EditText)) {
-                int[] l = {0, 0};
-                v.getLocationInWindow(l);
-                int left = l[0],
-                        top = l[1],
-                        bottom = top + v.getHeight(),
-                        right = left + v.getWidth();
-                return !(event.getX() > left && event.getX() < right
-                        && event.getY() > top && event.getY() < bottom);
-            }
-            return false;
-        }
-        */
-    }
-
-    private static int getStatusBarHeight() {
-        Resources resources = Resources.getSystem();
-        int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
-        return resources.getDimensionPixelSize(resourceId);
-    }
-
-    private static int getNavBarHeight() {
-        Resources res = Resources.getSystem();
-        int resourceId = res.getIdentifier("navigation_bar_height", "dimen", "android");
-        if (resourceId != 0) {
-            return res.getDimensionPixelSize(resourceId);
-        } else {
-            return 0;
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // interface
-    ///////////////////////////////////////////////////////////////////////////
-
-    public interface OnSoftInputChangedListener {
-        void onSoftInputChanged(int height);
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/LogUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/LogUtils.java
deleted file mode 100644
index ecc20a11a2..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/LogUtils.java
+++ /dev/null
@@ -1,1083 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.content.ClipData;
-import android.content.ComponentName;
-import android.content.Intent;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.graphics.Rect;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Environment;
-import android.support.annotation.IntDef;
-import android.support.annotation.IntRange;
-import android.support.annotation.RequiresApi;
-import android.support.v4.util.SimpleArrayMap;
-import android.util.Log;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.FilenameFilter;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringReader;
-import java.io.StringWriter;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.reflect.ParameterizedType;
-import java.lang.reflect.Type;
-import java.net.UnknownHostException;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.Formatter;
-import java.util.Iterator;
-import java.util.Locale;
-import java.util.Set;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-import javax.xml.transform.OutputKeys;
-import javax.xml.transform.Source;
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.stream.StreamResult;
-import javax.xml.transform.stream.StreamSource;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/21
- *     desc  : utils about log
- * </pre>
- */
-public final class LogUtils {
-
-    public static final int V = Log.VERBOSE;
-    public static final int D = Log.DEBUG;
-    public static final int I = Log.INFO;
-    public static final int W = Log.WARN;
-    public static final int E = Log.ERROR;
-    public static final int A = Log.ASSERT;
-
-    @IntDef({V, D, I, W, E, A})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface TYPE {
-    }
-
-    private static final char[] T = new char[]{'V', 'D', 'I', 'W', 'E', 'A'};
-
-    private static final int FILE = 0x10;
-    private static final int JSON = 0x20;
-    private static final int XML  = 0x30;
-
-    private static final String FILE_SEP       = System.getProperty("file.separator");
-    private static final String LINE_SEP       = System.getProperty("line.separator");
-    private static final String TOP_CORNER     = "┌";
-    private static final String MIDDLE_CORNER  = "├";
-    private static final String LEFT_BORDER    = "│ ";
-    private static final String BOTTOM_CORNER  = "└";
-    private static final String SIDE_DIVIDER   =
-            "────────────────────────────────────────────────────────";
-    private static final String MIDDLE_DIVIDER =
-            "┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄";
-    private static final String TOP_BORDER     = TOP_CORNER + SIDE_DIVIDER + SIDE_DIVIDER;
-    private static final String MIDDLE_BORDER  = MIDDLE_CORNER + MIDDLE_DIVIDER + MIDDLE_DIVIDER;
-    private static final String BOTTOM_BORDER  = BOTTOM_CORNER + SIDE_DIVIDER + SIDE_DIVIDER;
-    private static final int    MAX_LEN        = 3000;
-    private static final String NOTHING        = "log nothing";
-    private static final String NULL           = "null";
-    private static final String ARGS           = "args";
-    private static final String PLACEHOLDER    = " ";
-    private static final Config CONFIG         = new Config();
-
-    private static final ThreadLocal<SimpleDateFormat> SDF_THREAD_LOCAL = new ThreadLocal<>();
-
-    private static final ExecutorService EXECUTOR = Executors.newSingleThreadExecutor();
-
-    private static final SimpleArrayMap<Class, IFormatter> I_FORMATTER_MAP = new SimpleArrayMap<>();
-
-
-    private LogUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    public static Config getConfig() {
-        return CONFIG;
-    }
-
-    public static void v(final Object... contents) {
-        log(V, CONFIG.mGlobalTag, contents);
-    }
-
-    public static void vTag(final String tag, final Object... contents) {
-        log(V, tag, contents);
-    }
-
-    public static void d(final Object... contents) {
-        log(D, CONFIG.mGlobalTag, contents);
-    }
-
-    public static void dTag(final String tag, final Object... contents) {
-        log(D, tag, contents);
-    }
-
-    public static void i(final Object... contents) {
-        log(I, CONFIG.mGlobalTag, contents);
-    }
-
-    public static void iTag(final String tag, final Object... contents) {
-        log(I, tag, contents);
-    }
-
-    public static void w(final Object... contents) {
-        log(W, CONFIG.mGlobalTag, contents);
-    }
-
-    public static void wTag(final String tag, final Object... contents) {
-        log(W, tag, contents);
-    }
-
-    public static void e(final Object... contents) {
-        log(E, CONFIG.mGlobalTag, contents);
-    }
-
-    public static void eTag(final String tag, final Object... contents) {
-        log(E, tag, contents);
-    }
-
-    public static void a(final Object... contents) {
-        log(A, CONFIG.mGlobalTag, contents);
-    }
-
-    public static void aTag(final String tag, final Object... contents) {
-        log(A, tag, contents);
-    }
-
-    public static void file(final Object content) {
-        log(FILE | D, CONFIG.mGlobalTag, content);
-    }
-
-    public static void file(@TYPE final int type, final Object content) {
-        log(FILE | type, CONFIG.mGlobalTag, content);
-    }
-
-    public static void file(final String tag, final Object content) {
-        log(FILE | D, tag, content);
-    }
-
-    public static void file(@TYPE final int type, final String tag, final Object content) {
-        log(FILE | type, tag, content);
-    }
-
-    public static void json(final String content) {
-        log(JSON | D, CONFIG.mGlobalTag, content);
-    }
-
-    public static void json(@TYPE final int type, final String content) {
-        log(JSON | type, CONFIG.mGlobalTag, content);
-    }
-
-    public static void json(final String tag, final String content) {
-        log(JSON | D, tag, content);
-    }
-
-    public static void json(@TYPE final int type, final String tag, final String content) {
-        log(JSON | type, tag, content);
-    }
-
-    public static void xml(final String content) {
-        log(XML | D, CONFIG.mGlobalTag, content);
-    }
-
-    public static void xml(@TYPE final int type, final String content) {
-        log(XML | type, CONFIG.mGlobalTag, content);
-    }
-
-    public static void xml(final String tag, final String content) {
-        log(XML | D, tag, content);
-    }
-
-    public static void xml(@TYPE final int type, final String tag, final String content) {
-        log(XML | type, tag, content);
-    }
-
-    public static void log(final int type, final String tag, final Object... contents) {
-        if (!CONFIG.mLogSwitch || (!CONFIG.mLog2ConsoleSwitch && !CONFIG.mLog2FileSwitch)) return;
-        int type_low = type & 0x0f, type_high = type & 0xf0;
-        if (type_low < CONFIG.mConsoleFilter && type_low < CONFIG.mFileFilter) return;
-        final TagHead tagHead = processTagAndHead(tag);
-        String body = processBody(type_high, contents);
-        if (CONFIG.mLog2ConsoleSwitch && type_low >= CONFIG.mConsoleFilter && type_high != FILE) {
-            print2Console(type_low, tagHead.tag, tagHead.consoleHead, body);
-        }
-        if ((CONFIG.mLog2FileSwitch || type_high == FILE) && type_low >= CONFIG.mFileFilter) {
-            print2File(type_low, tagHead.tag, tagHead.fileHead + body);
-        }
-    }
-
-    private static TagHead processTagAndHead(String tag) {
-        if (!CONFIG.mTagIsSpace && !CONFIG.mLogHeadSwitch) {
-            tag = CONFIG.mGlobalTag;
-        } else {
-            final StackTraceElement[] stackTrace = new Throwable().getStackTrace();
-            final int stackIndex = 3 + CONFIG.mStackOffset;
-            if (stackIndex >= stackTrace.length) {
-                StackTraceElement targetElement = stackTrace[3];
-                final String fileName = getFileName(targetElement);
-                if (CONFIG.mTagIsSpace && isSpace(tag)) {
-                    int index = fileName.indexOf('.');// Use proguard may not find '.'.
-                    tag = index == -1 ? fileName : fileName.substring(0, index);
-                }
-                return new TagHead(tag, null, ": ");
-            }
-            StackTraceElement targetElement = stackTrace[stackIndex];
-            final String fileName = getFileName(targetElement);
-            if (CONFIG.mTagIsSpace && isSpace(tag)) {
-                int index = fileName.indexOf('.');// Use proguard may not find '.'.
-                tag = index == -1 ? fileName : fileName.substring(0, index);
-            }
-            if (CONFIG.mLogHeadSwitch) {
-                String tName = Thread.currentThread().getName();
-                final String head = new Formatter()
-                        .format("%s, %s.%s(%s:%d)",
-                                tName,
-                                targetElement.getClassName(),
-                                targetElement.getMethodName(),
-                                fileName,
-                                targetElement.getLineNumber())
-                        .toString();
-                final String fileHead = " [" + head + "]: ";
-                if (CONFIG.mStackDeep <= 1) {
-                    return new TagHead(tag, new String[]{head}, fileHead);
-                } else {
-                    final String[] consoleHead =
-                            new String[Math.min(
-                                    CONFIG.mStackDeep,
-                                    stackTrace.length - stackIndex
-                            )];
-                    consoleHead[0] = head;
-                    int spaceLen = tName.length() + 2;
-                    String space = new Formatter().format("%" + spaceLen + "s", "").toString();
-                    for (int i = 1, len = consoleHead.length; i < len; ++i) {
-                        targetElement = stackTrace[i + stackIndex];
-                        consoleHead[i] = new Formatter()
-                                .format("%s%s.%s(%s:%d)",
-                                        space,
-                                        targetElement.getClassName(),
-                                        targetElement.getMethodName(),
-                                        getFileName(targetElement),
-                                        targetElement.getLineNumber())
-                                .toString();
-                    }
-                    return new TagHead(tag, consoleHead, fileHead);
-                }
-            }
-        }
-        return new TagHead(tag, null, ": ");
-    }
-
-    private static String getFileName(final StackTraceElement targetElement) {
-        String fileName = targetElement.getFileName();
-        if (fileName != null) return fileName;
-        // If name of file is null, should add
-        // "-keepattributes SourceFile,LineNumberTable" in proguard file.
-        String className = targetElement.getClassName();
-        String[] classNameInfo = className.split("\\.");
-        if (classNameInfo.length > 0) {
-            className = classNameInfo[classNameInfo.length - 1];
-        }
-        int index = className.indexOf('$');
-        if (index != -1) {
-            className = className.substring(0, index);
-        }
-        return className + ".java";
-    }
-
-    private static String processBody(final int type, final Object... contents) {
-        String body = NULL;
-        if (contents != null) {
-            if (contents.length == 1) {
-                body = formatObject(type, contents[0]);
-            } else {
-                StringBuilder sb = new StringBuilder();
-                for (int i = 0, len = contents.length; i < len; ++i) {
-                    Object content = contents[i];
-                    sb.append(ARGS)
-                            .append("[")
-                            .append(i)
-                            .append("]")
-                            .append(" = ")
-                            .append(formatObject(content))
-                            .append(LINE_SEP);
-                }
-                body = sb.toString();
-            }
-        }
-        return body.length() == 0 ? NOTHING : body;
-    }
-
-    private static String formatObject(int type, Object object) {
-        if (object == null) return NULL;
-        if (type == JSON) return LogFormatter.formatJson(object.toString());
-        if (type == XML) return LogFormatter.formatXml(object.toString());
-        return formatObject(object);
-    }
-
-    private static String formatObject(Object object) {
-        if (object == null) return NULL;
-        if (!I_FORMATTER_MAP.isEmpty()) {
-            IFormatter iFormatter = I_FORMATTER_MAP.get(getClassFromObject(object));
-            if (iFormatter != null) {
-                //noinspection unchecked
-                return iFormatter.format(object);
-            }
-        }
-        if (object.getClass().isArray()) return LogFormatter.array2String(object);
-        if (object instanceof Throwable) return LogFormatter.throwable2String((Throwable) object);
-        if (object instanceof Bundle) return LogFormatter.bundle2String((Bundle) object);
-        if (object instanceof Intent) return LogFormatter.intent2String((Intent) object);
-        return object.toString();
-    }
-
-    private static void print2Console(final int type,
-                                      final String tag,
-                                      final String[] head,
-                                      final String msg) {
-        if (CONFIG.mSingleTagSwitch) {
-            printSingleTagMsg(type, tag, processSingleTagMsg(type, tag, head, msg));
-        } else {
-            printBorder(type, tag, true);
-            printHead(type, tag, head);
-            printMsg(type, tag, msg);
-            printBorder(type, tag, false);
-        }
-    }
-
-    private static void printBorder(final int type, final String tag, boolean isTop) {
-        if (CONFIG.mLogBorderSwitch) {
-            Log.println(type, tag, isTop ? TOP_BORDER : BOTTOM_BORDER);
-        }
-    }
-
-    private static void printHead(final int type, final String tag, final String[] head) {
-        if (head != null) {
-            for (String aHead : head) {
-                Log.println(type, tag, CONFIG.mLogBorderSwitch ? LEFT_BORDER + aHead : aHead);
-            }
-            if (CONFIG.mLogBorderSwitch) Log.println(type, tag, MIDDLE_BORDER);
-        }
-    }
-
-    private static void printMsg(final int type, final String tag, final String msg) {
-        int len = msg.length();
-        int countOfSub = len / MAX_LEN;
-        if (countOfSub > 0) {
-            int index = 0;
-            for (int i = 0; i < countOfSub; i++) {
-                printSubMsg(type, tag, msg.substring(index, index + MAX_LEN));
-                index += MAX_LEN;
-            }
-            if (index != len) {
-                printSubMsg(type, tag, msg.substring(index, len));
-            }
-        } else {
-            printSubMsg(type, tag, msg);
-        }
-    }
-
-    private static void printSubMsg(final int type, final String tag, final String msg) {
-        if (!CONFIG.mLogBorderSwitch) {
-            Log.println(type, tag, msg);
-            return;
-        }
-        StringBuilder sb = new StringBuilder();
-        String[] lines = msg.split(LINE_SEP);
-        for (String line : lines) {
-            Log.println(type, tag, LEFT_BORDER + line);
-        }
-    }
-
-    private static String processSingleTagMsg(final int type,
-                                              final String tag,
-                                              final String[] head,
-                                              final String msg) {
-        StringBuilder sb = new StringBuilder();
-        sb.append(PLACEHOLDER).append(LINE_SEP);
-        if (CONFIG.mLogBorderSwitch) {
-            sb.append(TOP_BORDER).append(LINE_SEP);
-            if (head != null) {
-                for (String aHead : head) {
-                    sb.append(LEFT_BORDER).append(aHead).append(LINE_SEP);
-                }
-                sb.append(MIDDLE_BORDER).append(LINE_SEP);
-            }
-            for (String line : msg.split(LINE_SEP)) {
-                sb.append(LEFT_BORDER).append(line).append(LINE_SEP);
-            }
-            sb.append(BOTTOM_BORDER);
-        } else {
-            if (head != null) {
-                for (String aHead : head) {
-                    sb.append(aHead).append(LINE_SEP);
-                }
-            }
-            sb.append(msg);
-        }
-        return sb.toString();
-    }
-
-    private static void printSingleTagMsg(final int type, final String tag, final String msg) {
-        int len = msg.length();
-        int countOfSub = len / MAX_LEN;
-        if (countOfSub > 0) {
-            if (CONFIG.mLogBorderSwitch) {
-                Log.println(type, tag, msg.substring(0, MAX_LEN) + LINE_SEP + BOTTOM_BORDER);
-                int index = MAX_LEN;
-                for (int i = 1; i < countOfSub; i++) {
-                    Log.println(type, tag, PLACEHOLDER + LINE_SEP + TOP_BORDER + LINE_SEP
-                            + LEFT_BORDER + msg.substring(index, index + MAX_LEN)
-                            + LINE_SEP + BOTTOM_BORDER);
-                    index += MAX_LEN;
-                }
-                if (index != len) {
-                    Log.println(type, tag, PLACEHOLDER + LINE_SEP + TOP_BORDER + LINE_SEP
-                            + LEFT_BORDER + msg.substring(index, len));
-                }
-            } else {
-                Log.println(type, tag, msg.substring(0, MAX_LEN));
-                int index = MAX_LEN;
-                for (int i = 1; i < countOfSub; i++) {
-                    Log.println(type, tag,
-                            PLACEHOLDER + LINE_SEP + msg.substring(index, index + MAX_LEN));
-                    index += MAX_LEN;
-                }
-                if (index != len) {
-                    Log.println(type, tag, PLACEHOLDER + LINE_SEP + msg.substring(index, len));
-                }
-            }
-        } else {
-            Log.println(type, tag, msg);
-        }
-    }
-
-    private static void print2File(final int type, final String tag, final String msg) {
-        Date now = new Date(System.currentTimeMillis());
-        String format = getSdf().format(now);
-        String date = format.substring(0, 10);
-        String time = format.substring(11);
-        final String fullPath =
-                (CONFIG.mDir == null ? CONFIG.mDefaultDir : CONFIG.mDir)
-                        + CONFIG.mFilePrefix + "-" + date + ".txt";
-        if (!createOrExistsFile(fullPath)) {
-            Log.e("LogUtils", "create " + fullPath + " failed!");
-            return;
-        }
-        StringBuilder sb = new StringBuilder();
-        sb.append(time)
-                .append(T[type - V])
-                .append("/")
-                .append(tag)
-                .append(msg)
-                .append(LINE_SEP);
-        final String content = sb.toString();
-        input2File(content, fullPath);
-    }
-
-    private static SimpleDateFormat getSdf() {
-        SimpleDateFormat simpleDateFormat = SDF_THREAD_LOCAL.get();
-        if (simpleDateFormat == null) {
-            simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-            SDF_THREAD_LOCAL.set(simpleDateFormat);
-        }
-        return simpleDateFormat;
-    }
-
-    private static boolean createOrExistsFile(final String filePath) {
-        File file = new File(filePath);
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            deleteDueLogs(filePath);
-            boolean isCreate = file.createNewFile();
-            if (isCreate) {
-                printDeviceInfo(filePath);
-            }
-            return isCreate;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static void deleteDueLogs(String filePath) {
-        File file = new File(filePath);
-        File parentFile = file.getParentFile();
-        File[] files = parentFile.listFiles(new FilenameFilter() {
-            @Override
-            public boolean accept(File dir, String name) {
-                return name.matches("^" + CONFIG.mFilePrefix + "-[0-9]{4}-[0-9]{2}-[0-9]{2}.txt$");
-            }
-        });
-        if (files.length <= 0) return;
-        final int length = filePath.length();
-        final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
-        try {
-            String curDay = filePath.substring(length - 14, length - 4);
-            long dueMillis = sdf.parse(curDay).getTime() - CONFIG.mSaveDays * 86400000L;
-            for (final File aFile : files) {
-                String name = aFile.getName();
-                int l = name.length();
-                String logDay = name.substring(l - 14, l - 4);
-                if (sdf.parse(logDay).getTime() <= dueMillis) {
-                    EXECUTOR.execute(new Runnable() {
-                        @Override
-                        public void run() {
-                            boolean delete = aFile.delete();
-                            if (!delete) {
-                                Log.e("LogUtils", "delete " + aFile + " failed!");
-                            }
-                        }
-                    });
-                }
-            }
-        } catch (ParseException e) {
-            e.printStackTrace();
-        }
-    }
-
-    private static void printDeviceInfo(final String filePath) {
-        String versionName = "";
-        int versionCode = 0;
-        try {
-            PackageInfo pi = Utils.getApp()
-                    .getPackageManager()
-                    .getPackageInfo(Utils.getApp().getPackageName(), 0);
-            if (pi != null) {
-                versionName = pi.versionName;
-                versionCode = pi.versionCode;
-            }
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-        }
-        String time = filePath.substring(filePath.length() - 14, filePath.length() - 4);
-        final String head = "************* Log Head ****************" +
-                "\nDate of Log        : " + time +
-                "\nDevice Manufacturer: " + Build.MANUFACTURER +
-                "\nDevice Model       : " + Build.MODEL +
-                "\nAndroid Version    : " + Build.VERSION.RELEASE +
-                "\nAndroid SDK        : " + Build.VERSION.SDK_INT +
-                "\nApp VersionName    : " + versionName +
-                "\nApp VersionCode    : " + versionCode +
-                "\n************* Log Head ****************\n\n";
-        input2File(head, filePath);
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static void input2File(final String input, final String filePath) {
-        EXECUTOR.execute(new Runnable() {
-            @Override
-            public void run() {
-                BufferedWriter bw = null;
-                try {
-                    bw = new BufferedWriter(new FileWriter(filePath, true));
-                    bw.write(input);
-                } catch (IOException e) {
-                    e.printStackTrace();
-                    Log.e("LogUtils", "log to " + filePath + " failed!");
-                } finally {
-                    try {
-                        if (bw != null) {
-                            bw.close();
-                        }
-                    } catch (IOException e) {
-                        e.printStackTrace();
-                    }
-                }
-            }
-        });
-    }
-
-    public static class Config {
-        private String  mDefaultDir;// The default storage directory of log.
-        private String  mDir;       // The storage directory of log.
-        private String  mFilePrefix        = "util";// The file prefix of log.
-        private boolean mLogSwitch         = true;  // The switch of log.
-        private boolean mLog2ConsoleSwitch = true;  // The logcat's switch of log.
-        private String  mGlobalTag         = null;  // The global tag of log.
-        private boolean mTagIsSpace        = true;  // The global tag is space.
-        private boolean mLogHeadSwitch     = true;  // The head's switch of log.
-        private boolean mLog2FileSwitch    = false; // The file's switch of log.
-        private boolean mLogBorderSwitch   = true;  // The border's switch of log.
-        private boolean mSingleTagSwitch   = true;  // The single tag of log.
-        private int     mConsoleFilter     = V;     // The console's filter of log.
-        private int     mFileFilter        = V;     // The file's filter of log.
-        private int     mStackDeep         = 1;     // The stack's deep of log.
-        private int     mStackOffset       = 0;     // The stack's offset of log.
-        private int     mSaveDays          = -1;    // The save days of log.
-
-        private Config() {
-            if (mDefaultDir != null) return;
-            if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
-                    && Utils.getApp().getExternalCacheDir() != null)
-                mDefaultDir = Utils.getApp().getExternalCacheDir() + FILE_SEP + "log" + FILE_SEP;
-            else {
-                mDefaultDir = Utils.getApp().getCacheDir() + FILE_SEP + "log" + FILE_SEP;
-            }
-        }
-
-        public Config setLogSwitch(final boolean logSwitch) {
-            mLogSwitch = logSwitch;
-            return this;
-        }
-
-        public Config setConsoleSwitch(final boolean consoleSwitch) {
-            mLog2ConsoleSwitch = consoleSwitch;
-            return this;
-        }
-
-        public Config setGlobalTag(final String tag) {
-            if (isSpace(tag)) {
-                mGlobalTag = "";
-                mTagIsSpace = true;
-            } else {
-                mGlobalTag = tag;
-                mTagIsSpace = false;
-            }
-            return this;
-        }
-
-        public Config setLogHeadSwitch(final boolean logHeadSwitch) {
-            mLogHeadSwitch = logHeadSwitch;
-            return this;
-        }
-
-        public Config setLog2FileSwitch(final boolean log2FileSwitch) {
-            mLog2FileSwitch = log2FileSwitch;
-            return this;
-        }
-
-        public Config setDir(final String dir) {
-            if (isSpace(dir)) {
-                mDir = null;
-            } else {
-                mDir = dir.endsWith(FILE_SEP) ? dir : dir + FILE_SEP;
-            }
-            return this;
-        }
-
-        public Config setDir(final File dir) {
-            mDir = dir == null ? null : dir.getAbsolutePath() + FILE_SEP;
-            return this;
-        }
-
-        public Config setFilePrefix(final String filePrefix) {
-            if (isSpace(filePrefix)) {
-                mFilePrefix = "util";
-            } else {
-                mFilePrefix = filePrefix;
-            }
-            return this;
-        }
-
-        public Config setBorderSwitch(final boolean borderSwitch) {
-            mLogBorderSwitch = borderSwitch;
-            return this;
-        }
-
-        public Config setSingleTagSwitch(final boolean singleTagSwitch) {
-            mSingleTagSwitch = singleTagSwitch;
-            return this;
-        }
-
-        public Config setConsoleFilter(@TYPE final int consoleFilter) {
-            mConsoleFilter = consoleFilter;
-            return this;
-        }
-
-        public Config setFileFilter(@TYPE final int fileFilter) {
-            mFileFilter = fileFilter;
-            return this;
-        }
-
-        public Config setStackDeep(@IntRange(from = 1) final int stackDeep) {
-            mStackDeep = stackDeep;
-            return this;
-        }
-
-        public Config setStackOffset(@IntRange(from = 0) final int stackOffset) {
-            mStackOffset = stackOffset;
-            return this;
-        }
-
-        public Config setSaveDays(@IntRange(from = 1) final int saveDays) {
-            mSaveDays = saveDays;
-            return this;
-        }
-
-        public final <T> Config addFormatter(final IFormatter<T> iFormatter) {
-            if (iFormatter != null) {
-                I_FORMATTER_MAP.put(getTypeClassFromParadigm(iFormatter), iFormatter);
-            }
-            return this;
-        }
-
-        @Override
-        public String toString() {
-            return "switch: " + mLogSwitch
-                    + LINE_SEP + "console: " + mLog2ConsoleSwitch
-                    + LINE_SEP + "tag: " + (mTagIsSpace ? "null" : mGlobalTag)
-                    + LINE_SEP + "head: " + mLogHeadSwitch
-                    + LINE_SEP + "file: " + mLog2FileSwitch
-                    + LINE_SEP + "dir: " + (mDir == null ? mDefaultDir : mDir)
-                    + LINE_SEP + "filePrefix: " + mFilePrefix
-                    + LINE_SEP + "border: " + mLogBorderSwitch
-                    + LINE_SEP + "singleTag: " + mSingleTagSwitch
-                    + LINE_SEP + "consoleFilter: " + T[mConsoleFilter - V]
-                    + LINE_SEP + "fileFilter: " + T[mFileFilter - V]
-                    + LINE_SEP + "stackDeep: " + mStackDeep
-                    + LINE_SEP + "stackOffset: " + mStackOffset
-                    + LINE_SEP + "saveDays: " + mSaveDays
-                    + LINE_SEP + "formatter: " + I_FORMATTER_MAP;
-        }
-    }
-
-    public abstract static class IFormatter<T> {
-        public abstract String format(T t);
-    }
-
-    private static class TagHead {
-        String   tag;
-        String[] consoleHead;
-        String   fileHead;
-
-        TagHead(String tag, String[] consoleHead, String fileHead) {
-            this.tag = tag;
-            this.consoleHead = consoleHead;
-            this.fileHead = fileHead;
-        }
-    }
-
-    private static class LogFormatter {
-        static String formatJson(String json) {
-            try {
-                if (json.startsWith("{")) {
-                    json = new JSONObject(json).toString(4);
-                } else if (json.startsWith("[")) {
-                    json = new JSONArray(json).toString(4);
-                }
-            } catch (JSONException e) {
-                e.printStackTrace();
-            }
-            return json;
-        }
-
-        static String formatXml(String xml) {
-            try {
-                Source xmlInput = new StreamSource(new StringReader(xml));
-                StreamResult xmlOutput = new StreamResult(new StringWriter());
-                Transformer transformer = TransformerFactory.newInstance().newTransformer();
-                transformer.setOutputProperty(OutputKeys.INDENT, "yes");
-                transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
-                transformer.transform(xmlInput, xmlOutput);
-                xml = xmlOutput.getWriter().toString().replaceFirst(">", ">" + LINE_SEP);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            return xml;
-        }
-
-        static String array2String(Object object) {
-            if (object instanceof Object[]) {
-                return Arrays.deepToString((Object[]) object);
-            } else if (object instanceof boolean[]) {
-                return Arrays.toString((boolean[]) object);
-            } else if (object instanceof byte[]) {
-                return Arrays.toString((byte[]) object);
-            } else if (object instanceof char[]) {
-                return Arrays.toString((char[]) object);
-            } else if (object instanceof double[]) {
-                return Arrays.toString((double[]) object);
-            } else if (object instanceof float[]) {
-                return Arrays.toString((float[]) object);
-            } else if (object instanceof int[]) {
-                return Arrays.toString((int[]) object);
-            } else if (object instanceof long[]) {
-                return Arrays.toString((long[]) object);
-            } else if (object instanceof short[]) {
-                return Arrays.toString((short[]) object);
-            }
-            throw new IllegalArgumentException("Array has incompatible type: " + object.getClass());
-        }
-
-        static String throwable2String(final Throwable e) {
-            Throwable t = e;
-            while (t != null) {
-                if (t instanceof UnknownHostException) {
-                    return "";
-                }
-                t = t.getCause();
-            }
-            StringWriter sw = new StringWriter();
-            PrintWriter pw = new PrintWriter(sw);
-            e.printStackTrace(pw);
-            Throwable cause = e.getCause();
-            while (cause != null) {
-                cause.printStackTrace(pw);
-                cause = cause.getCause();
-            }
-            pw.flush();
-            return sw.toString();
-        }
-
-        static String bundle2String(Bundle bundle) {
-            Iterator<String> iterator = bundle.keySet().iterator();
-            if (!iterator.hasNext()) {
-                return "Bundle {}";
-            }
-            StringBuilder sb = new StringBuilder(128);
-            sb.append("Bundle { ");
-            for (; ; ) {
-                String key = iterator.next();
-                Object value = bundle.get(key);
-                sb.append(key).append('=');
-                if (value != null && value instanceof Bundle) {
-                    sb.append(value == bundle ? "(this Bundle)" : bundle2String((Bundle) value));
-                } else {
-                    sb.append(formatObject(value));
-                }
-                if (!iterator.hasNext()) return sb.append(" }").toString();
-                sb.append(',').append(' ');
-            }
-        }
-
-        static String intent2String(Intent intent) {
-            StringBuilder sb = new StringBuilder(128);
-            sb.append("Intent { ");
-            boolean first = true;
-            String mAction = intent.getAction();
-            if (mAction != null) {
-                sb.append("act=").append(mAction);
-                first = false;
-            }
-            Set<String> mCategories = intent.getCategories();
-            if (mCategories != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("cat=[");
-                boolean firstCategory = true;
-                for (String c : mCategories) {
-                    if (!firstCategory) {
-                        sb.append(',');
-                    }
-                    sb.append(c);
-                    firstCategory = false;
-                }
-                sb.append("]");
-            }
-            Uri mData = intent.getData();
-            if (mData != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("dat=").append(mData);
-            }
-            String mType = intent.getType();
-            if (mType != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("typ=").append(mType);
-            }
-            int mFlags = intent.getFlags();
-            if (mFlags != 0) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("flg=0x").append(Integer.toHexString(mFlags));
-            }
-            String mPackage = intent.getPackage();
-            if (mPackage != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("pkg=").append(mPackage);
-            }
-            ComponentName mComponent = intent.getComponent();
-            if (mComponent != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("cmp=").append(mComponent.flattenToShortString());
-            }
-            Rect mSourceBounds = intent.getSourceBounds();
-            if (mSourceBounds != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("bnds=").append(mSourceBounds.toShortString());
-            }
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-                ClipData mClipData = intent.getClipData();
-                if (mClipData != null) {
-                    if (!first) {
-                        sb.append(' ');
-                    }
-                    first = false;
-                    clipData2String(mClipData, sb);
-                }
-            }
-            Bundle mExtras = intent.getExtras();
-            if (mExtras != null) {
-                if (!first) {
-                    sb.append(' ');
-                }
-                first = false;
-                sb.append("extras={");
-                sb.append(bundle2String(mExtras));
-                sb.append('}');
-            }
-            if (Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
-                Intent mSelector = intent.getSelector();
-                if (mSelector != null) {
-                    if (!first) {
-                        sb.append(' ');
-                    }
-                    first = false;
-                    sb.append("sel={");
-                    sb.append(mSelector == intent ? "(this Intent)" : intent2String(mSelector));
-                    sb.append("}");
-                }
-            }
-            sb.append(" }");
-            return sb.toString();
-        }
-
-        @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
-        private static void clipData2String(ClipData clipData, StringBuilder sb) {
-            ClipData.Item item = clipData.getItemAt(0);
-            if (item == null) {
-                sb.append("ClipData.Item {}");
-                return;
-            }
-            sb.append("ClipData.Item { ");
-            String mHtmlText = item.getHtmlText();
-            if (mHtmlText != null) {
-                sb.append("H:");
-                sb.append(mHtmlText);
-                sb.append("}");
-                return;
-            }
-            CharSequence mText = item.getText();
-            if (mText != null) {
-                sb.append("T:");
-                sb.append(mText);
-                sb.append("}");
-                return;
-            }
-            Uri uri = item.getUri();
-            if (uri != null) {
-                sb.append("U:").append(uri);
-                sb.append("}");
-                return;
-            }
-            Intent intent = item.getIntent();
-            if (intent != null) {
-                sb.append("I:");
-                sb.append(intent2String(intent));
-                sb.append("}");
-                return;
-            }
-            sb.append("NULL");
-            sb.append("}");
-        }
-    }
-
-    static <T> Class getTypeClassFromParadigm(final IFormatter<T> formatter) {
-        Type[] genericInterfaces = formatter.getClass().getGenericInterfaces();
-        Type type;
-        if (genericInterfaces.length == 1) {
-            type = genericInterfaces[0];
-        } else {
-            type = formatter.getClass().getGenericSuperclass();
-        }
-        type = ((ParameterizedType) type).getActualTypeArguments()[0];
-        while (type instanceof ParameterizedType) {
-            type = ((ParameterizedType) type).getRawType();
-        }
-        String className = type.toString();
-        if (className.startsWith("class ")) {
-            className = className.substring(6);
-        } else if (className.startsWith("interface ")) {
-            className = className.substring(10);
-        }
-        try {
-            return Class.forName(className);
-        } catch (ClassNotFoundException e) {
-            e.printStackTrace();
-        }
-        return null;
-    }
-
-    private static Class getClassFromObject(final Object obj) {
-        Class objClass = obj.getClass();
-        if (objClass.isAnonymousClass() || objClass.isSynthetic()) {
-            Type[] genericInterfaces = objClass.getGenericInterfaces();
-            String className;
-            if (genericInterfaces.length == 1) {// interface
-                Type type = genericInterfaces[0];
-                while (type instanceof ParameterizedType) {
-                    type = ((ParameterizedType) type).getRawType();
-                }
-                className = type.toString();
-            } else {// abstract class or lambda
-                Type type = objClass.getGenericSuperclass();
-                while (type instanceof ParameterizedType) {
-                    type = ((ParameterizedType) type).getRawType();
-                }
-                className = type.toString();
-            }
-
-            if (className.startsWith("class ")) {
-                className = className.substring(6);
-            } else if (className.startsWith("interface ")) {
-                className = className.substring(10);
-            }
-            try {
-                return Class.forName(className);
-            } catch (ClassNotFoundException e) {
-                e.printStackTrace();
-            }
-        }
-        return objClass;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/NetworkUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
deleted file mode 100644
index 579a084695..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/NetworkUtils.java
+++ /dev/null
@@ -1,495 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.Intent;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.net.wifi.WifiManager;
-import android.os.Build;
-import android.support.annotation.RequiresPermission;
-import android.telephony.TelephonyManager;
-import android.text.format.Formatter;
-import android.util.Log;
-
-import java.lang.reflect.Method;
-import java.net.InetAddress;
-import java.net.InterfaceAddress;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-import java.net.UnknownHostException;
-import java.util.Enumeration;
-import java.util.LinkedList;
-import java.util.List;
-
-import static android.Manifest.permission.ACCESS_NETWORK_STATE;
-import static android.Manifest.permission.ACCESS_WIFI_STATE;
-import static android.Manifest.permission.CHANGE_WIFI_STATE;
-import static android.Manifest.permission.INTERNET;
-import static android.Manifest.permission.MODIFY_PHONE_STATE;
-import static android.content.Context.WIFI_SERVICE;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/02
- *     desc  : utils about network
- * </pre>
- */
-public final class NetworkUtils {
-
-    private NetworkUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    public enum NetworkType {
-        NETWORK_ETHERNET,
-        NETWORK_WIFI,
-        NETWORK_4G,
-        NETWORK_3G,
-        NETWORK_2G,
-        NETWORK_UNKNOWN,
-        NETWORK_NO
-    }
-
-    /**
-     * Open the settings of wireless.
-     */
-    public static void openWirelessSettings() {
-        Utils.getApp().startActivity(
-                new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS)
-                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-        );
-    }
-
-    /**
-     * Return whether network is connected.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
-     *
-     * @return {@code true}: connected<br>{@code false}: disconnected
-     */
-    @RequiresPermission(ACCESS_NETWORK_STATE)
-    public static boolean isConnected() {
-        NetworkInfo info = getActiveNetworkInfo();
-        return info != null && info.isConnected();
-    }
-
-    /**
-     * Return whether network is available using ping.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     * <p>The default ping ip: 223.5.5.5</p>
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    @RequiresPermission(INTERNET)
-    public static boolean isAvailableByPing() {
-        return isAvailableByPing(null);
-    }
-
-    /**
-     * Return whether network is available using ping.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     *
-     * @param ip The ip address.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    @RequiresPermission(INTERNET)
-    public static boolean isAvailableByPing(String ip) {
-        if (ip == null || ip.length() <= 0) {
-            ip = "223.5.5.5";// default ping ip
-        }
-        ShellUtils.CommandResult result = ShellUtils.execCmd(String.format("ping -c 1 %s", ip), false);
-        boolean ret = result.result == 0;
-        if (result.errorMsg != null) {
-            Log.d("NetworkUtils", "isAvailableByPing() called" + result.errorMsg);
-        }
-        if (result.successMsg != null) {
-            Log.d("NetworkUtils", "isAvailableByPing() called" + result.successMsg);
-        }
-        return ret;
-    }
-
-
-    @RequiresPermission(INTERNET)
-    public static void isAvailableByDns(String ip) {
-
-    }
-
-    public interface Callback {
-        void call(boolean isSuccess);
-    }
-
-    /**
-     * Return whether mobile data is enabled.
-     *
-     * @return {@code true}: enabled<br>{@code false}: disabled
-     */
-    public static boolean getMobileDataEnabled() {
-        try {
-            TelephonyManager tm =
-                    (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-            if (tm == null) return false;
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-                return tm.isDataEnabled();
-            }
-            @SuppressLint("PrivateApi")
-            Method getMobileDataEnabledMethod = tm.getClass().getDeclaredMethod("getDataEnabled");
-            if (null != getMobileDataEnabledMethod) {
-                return (boolean) getMobileDataEnabledMethod.invoke(tm);
-            }
-
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return false;
-    }
-
-    /**
-     * Set mobile data enabled.
-     * <p>Must hold {@code android:sharedUserId="android.uid.system"},
-     * {@code <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />}</p>
-     *
-     * @param enabled True to enabled, false otherwise.
-     */
-    @RequiresPermission(MODIFY_PHONE_STATE)
-    public static void setMobileDataEnabled(final boolean enabled) {
-        try {
-            TelephonyManager tm =
-                    (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-            if (tm == null) return;
-            Method setMobileDataEnabledMethod =
-                    tm.getClass().getDeclaredMethod("setDataEnabled", boolean.class);
-            if (null != setMobileDataEnabledMethod) {
-                setMobileDataEnabledMethod.invoke(tm, enabled);
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Return whether using mobile data.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    @RequiresPermission(ACCESS_NETWORK_STATE)
-    public static boolean isMobileData() {
-        NetworkInfo info = getActiveNetworkInfo();
-        return null != info
-                && info.isAvailable()
-                && info.getType() == ConnectivityManager.TYPE_MOBILE;
-    }
-
-    /**
-     * Return whether using 4G.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    @RequiresPermission(ACCESS_NETWORK_STATE)
-    public static boolean is4G() {
-        NetworkInfo info = getActiveNetworkInfo();
-        return info != null
-                && info.isAvailable()
-                && info.getSubtype() == TelephonyManager.NETWORK_TYPE_LTE;
-    }
-
-    /**
-     * Return whether wifi is enabled.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />}</p>
-     *
-     * @return {@code true}: enabled<br>{@code false}: disabled
-     */
-    @RequiresPermission(ACCESS_WIFI_STATE)
-    public static boolean getWifiEnabled() {
-        @SuppressLint("WifiManagerLeak")
-        WifiManager manager = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
-        if (manager == null) return false;
-        return manager.isWifiEnabled();
-    }
-
-    /**
-     * Set wifi enabled.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />}</p>
-     *
-     * @param enabled True to enabled, false otherwise.
-     */
-    @RequiresPermission(CHANGE_WIFI_STATE)
-    public static void setWifiEnabled(final boolean enabled) {
-        @SuppressLint("WifiManagerLeak")
-        WifiManager manager = (WifiManager) Utils.getApp().getSystemService(WIFI_SERVICE);
-        if (manager == null) return;
-        if (enabled == manager.isWifiEnabled()) return;
-        manager.setWifiEnabled(enabled);
-    }
-
-    /**
-     * Return whether wifi is connected.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
-     *
-     * @return {@code true}: connected<br>{@code false}: disconnected
-     */
-    @RequiresPermission(ACCESS_NETWORK_STATE)
-    public static boolean isWifiConnected() {
-        ConnectivityManager cm =
-                (ConnectivityManager) Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
-        if (cm == null) return false;
-        NetworkInfo ni = cm.getActiveNetworkInfo();
-        return ni != null && ni.getType() == ConnectivityManager.TYPE_WIFI;
-    }
-
-    /**
-     * Return whether wifi is available.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />},
-     * {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     *
-     * @return {@code true}: available<br>{@code false}: unavailable
-     */
-    @RequiresPermission(allOf = {ACCESS_WIFI_STATE, INTERNET})
-    public static boolean isWifiAvailable() {
-        return getWifiEnabled() && isAvailableByPing();
-    }
-
-    /**
-     * Return the name of network operate.
-     *
-     * @return the name of network operate
-     */
-    public static String getNetworkOperatorName() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        if (tm == null) return "";
-        return tm.getNetworkOperatorName();
-    }
-
-    /**
-     * Return type of network.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />}</p>
-     *
-     * @return type of network
-     * <ul>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_ETHERNET} </li>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_WIFI    } </li>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_4G      } </li>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_3G      } </li>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_2G      } </li>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_UNKNOWN } </li>
-     * <li>{@link NetworkUtils.NetworkType#NETWORK_NO      } </li>
-     * </ul>
-     */
-    @RequiresPermission(ACCESS_NETWORK_STATE)
-    public static NetworkType getNetworkType() {
-        NetworkType netType = NetworkType.NETWORK_NO;
-        NetworkInfo info = getActiveNetworkInfo();
-        if (info != null && info.isAvailable()) {
-            if (info.getType() == ConnectivityManager.TYPE_ETHERNET) {
-                netType = NetworkType.NETWORK_ETHERNET;
-            } else if (info.getType() == ConnectivityManager.TYPE_WIFI) {
-                netType = NetworkType.NETWORK_WIFI;
-            } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
-                switch (info.getSubtype()) {
-
-                    case TelephonyManager.NETWORK_TYPE_GSM:
-                    case TelephonyManager.NETWORK_TYPE_GPRS:
-                    case TelephonyManager.NETWORK_TYPE_CDMA:
-                    case TelephonyManager.NETWORK_TYPE_EDGE:
-                    case TelephonyManager.NETWORK_TYPE_1xRTT:
-                    case TelephonyManager.NETWORK_TYPE_IDEN:
-                        netType = NetworkType.NETWORK_2G;
-                        break;
-
-                    case TelephonyManager.NETWORK_TYPE_TD_SCDMA:
-                    case TelephonyManager.NETWORK_TYPE_EVDO_A:
-                    case TelephonyManager.NETWORK_TYPE_UMTS:
-                    case TelephonyManager.NETWORK_TYPE_EVDO_0:
-                    case TelephonyManager.NETWORK_TYPE_HSDPA:
-                    case TelephonyManager.NETWORK_TYPE_HSUPA:
-                    case TelephonyManager.NETWORK_TYPE_HSPA:
-                    case TelephonyManager.NETWORK_TYPE_EVDO_B:
-                    case TelephonyManager.NETWORK_TYPE_EHRPD:
-                    case TelephonyManager.NETWORK_TYPE_HSPAP:
-                        netType = NetworkType.NETWORK_3G;
-                        break;
-
-                    case TelephonyManager.NETWORK_TYPE_IWLAN:
-                    case TelephonyManager.NETWORK_TYPE_LTE:
-                        netType = NetworkType.NETWORK_4G;
-                        break;
-                    default:
-
-                        String subtypeName = info.getSubtypeName();
-                        if (subtypeName.equalsIgnoreCase("TD-SCDMA")
-                                || subtypeName.equalsIgnoreCase("WCDMA")
-                                || subtypeName.equalsIgnoreCase("CDMA2000")) {
-                            netType = NetworkType.NETWORK_3G;
-                        } else {
-                            netType = NetworkType.NETWORK_UNKNOWN;
-                        }
-                        break;
-                }
-            } else {
-                netType = NetworkType.NETWORK_UNKNOWN;
-            }
-        }
-        return netType;
-    }
-
-    @RequiresPermission(ACCESS_NETWORK_STATE)
-    private static NetworkInfo getActiveNetworkInfo() {
-        ConnectivityManager cm =
-                (ConnectivityManager) Utils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
-        if (cm == null) return null;
-        return cm.getActiveNetworkInfo();
-    }
-
-    /**
-     * Return the ip address.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     *
-     * @param useIPv4 True to use ipv4, false otherwise.
-     * @return the ip address
-     */
-    @RequiresPermission(INTERNET)
-    public static String getIPAddress(final boolean useIPv4) {
-        try {
-            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
-            LinkedList<InetAddress> adds = new LinkedList<>();
-            while (nis.hasMoreElements()) {
-                NetworkInterface ni = nis.nextElement();
-                // To prevent phone of xiaomi return "10.0.2.15"
-                if (!ni.isUp() || ni.isLoopback()) continue;
-                Enumeration<InetAddress> addresses = ni.getInetAddresses();
-                while (addresses.hasMoreElements()) {
-                    adds.addFirst(addresses.nextElement());
-                }
-            }
-            for (InetAddress add : adds) {
-                if (!add.isLoopbackAddress()) {
-                    String hostAddress = add.getHostAddress();
-                    boolean isIPv4 = hostAddress.indexOf(':') < 0;
-                    if (useIPv4) {
-                        if (isIPv4) return hostAddress;
-                    } else {
-                        if (!isIPv4) {
-                            int index = hostAddress.indexOf('%');
-                            return index < 0
-                                    ? hostAddress.toUpperCase()
-                                    : hostAddress.substring(0, index).toUpperCase();
-                        }
-                    }
-                }
-            }
-        } catch (SocketException e) {
-            e.printStackTrace();
-        }
-        return "";
-    }
-
-    /**
-     * Return the ip address of broadcast.
-     *
-     * @return the ip address of broadcast
-     */
-    public static String getBroadcastIpAddress() {
-        try {
-            Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
-            LinkedList<InetAddress> adds = new LinkedList<>();
-            while (nis.hasMoreElements()) {
-                NetworkInterface ni = nis.nextElement();
-                if (!ni.isUp() || ni.isLoopback()) continue;
-                List<InterfaceAddress> ias = ni.getInterfaceAddresses();
-                for (int i = 0; i < ias.size(); i++) {
-                    InterfaceAddress ia = ias.get(i);
-                    InetAddress broadcast = ia.getBroadcast();
-                    if (broadcast != null) {
-                        return broadcast.getHostAddress();
-                    }
-                }
-            }
-        } catch (SocketException e) {
-            e.printStackTrace();
-        }
-        return "";
-    }
-
-    /**
-     * Return the domain address.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.INTERNET" />}</p>
-     *
-     * @param domain The name of domain.
-     * @return the domain address
-     */
-    @RequiresPermission(INTERNET)
-    public static String getDomainAddress(final String domain) {
-        InetAddress inetAddress;
-        try {
-            inetAddress = InetAddress.getByName(domain);
-            return inetAddress.getHostAddress();
-        } catch (UnknownHostException e) {
-            e.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * Return the ip address by wifi.
-     *
-     * @return the ip address by wifi
-     */
-    @RequiresPermission(ACCESS_WIFI_STATE)
-    public static String getIpAddressByWifi() {
-        @SuppressLint("WifiManagerLeak")
-        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
-        if (wm == null) return "";
-        return Formatter.formatIpAddress(wm.getDhcpInfo().ipAddress);
-    }
-
-    /**
-     * Return the gate way by wifi.
-     *
-     * @return the gate way by wifi
-     */
-    @RequiresPermission(ACCESS_WIFI_STATE)
-    public static String getGatewayByWifi() {
-        @SuppressLint("WifiManagerLeak")
-        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
-        if (wm == null) return "";
-        return Formatter.formatIpAddress(wm.getDhcpInfo().gateway);
-    }
-
-    /**
-     * Return the net mask by wifi.
-     *
-     * @return the net mask by wifi
-     */
-    @RequiresPermission(ACCESS_WIFI_STATE)
-    public static String getNetMaskByWifi() {
-        @SuppressLint("WifiManagerLeak")
-        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
-        if (wm == null) return "";
-        return Formatter.formatIpAddress(wm.getDhcpInfo().netmask);
-    }
-
-    /**
-     * Return the server address by wifi.
-     *
-     * @return the server address by wifi
-     */
-    @RequiresPermission(ACCESS_WIFI_STATE)
-    public static String getServerAddressByWifi() {
-        @SuppressLint("WifiManagerLeak")
-        WifiManager wm = (WifiManager) Utils.getApp().getSystemService(Context.WIFI_SERVICE);
-        if (wm == null) return "";
-        return Formatter.formatIpAddress(wm.getDhcpInfo().serverAddress);
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/PathUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/PathUtils.java
deleted file mode 100644
index 986e6a7ede..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/PathUtils.java
+++ /dev/null
@@ -1,402 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.os.Build;
-import android.os.Environment;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/04/15
- *     desc  : utils about path
- * </pre>
- */
-public class PathUtils {
-
-    private PathUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return the path of /system.
-     *
-     * @return the path of /system
-     */
-    public static String getRootPath() {
-        return Environment.getRootDirectory().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data.
-     *
-     * @return the path of /data
-     */
-    public static String getDataPath() {
-        return Environment.getDataDirectory().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /cache.
-     *
-     * @return the path of /cache
-     */
-    public static String getDownloadCachePath() {
-        return Environment.getDownloadCacheDirectory().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data/data/package.
-     *
-     * @return the path of /data/data/package
-     */
-    public static String getInternalAppDataPath() {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
-            return Utils.getApp().getApplicationInfo().dataDir;
-        }
-        return Utils.getApp().getDataDir().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data/data/package/code_cache.
-     *
-     * @return the path of /data/data/package/code_cache
-     */
-    public static String getInternalAppCodeCacheDir() {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
-            return Utils.getApp().getApplicationInfo().dataDir + "/code_cache";
-        }
-        return Utils.getApp().getCodeCacheDir().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data/data/package/cache.
-     *
-     * @return the path of /data/data/package/cache
-     */
-    public static String getInternalAppCachePath() {
-        return Utils.getApp().getCacheDir().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data/data/package/databases.
-     *
-     * @return the path of /data/data/package/databases
-     */
-    public static String getInternalAppDbsPath() {
-        return Utils.getApp().getApplicationInfo().dataDir + "/databases";
-    }
-
-    /**
-     * Return the path of /data/data/package/databases/name.
-     *
-     * @param name The name of database.
-     * @return the path of /data/data/package/databases/name
-     */
-    public static String getInternalAppDbPath(String name) {
-        return Utils.getApp().getDatabasePath(name).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data/data/package/files.
-     *
-     * @return the path of /data/data/package/files
-     */
-    public static String getInternalAppFilesPath() {
-        return Utils.getApp().getFilesDir().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /data/data/package/shared_prefs.
-     *
-     * @return the path of /data/data/package/shared_prefs
-     */
-    public static String getInternalAppSpPath() {
-        return Utils.getApp().getApplicationInfo().dataDir + "shared_prefs";
-    }
-
-    /**
-     * Return the path of /data/data/package/no_backup.
-     *
-     * @return the path of /data/data/package/no_backup
-     */
-    public static String getInternalAppNoBackupFilesPath() {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
-            return Utils.getApp().getApplicationInfo().dataDir + "no_backup";
-        }
-        return Utils.getApp().getNoBackupFilesDir().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0.
-     *
-     * @return the path of /storage/emulated/0
-     */
-    public static String getExternalStoragePath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStorageDirectory().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Music.
-     *
-     * @return the path of /storage/emulated/0/Music
-     */
-    public static String getExternalMusicPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Podcasts.
-     *
-     * @return the path of /storage/emulated/0/Podcasts
-     */
-    public static String getExternalPodcastsPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PODCASTS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Ringtones.
-     *
-     * @return the path of /storage/emulated/0/Ringtones
-     */
-    public static String getExternalRingtonesPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_RINGTONES).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Alarms.
-     *
-     * @return the path of /storage/emulated/0/Alarms
-     */
-    public static String getExternalAlarmsPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_ALARMS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Notifications.
-     *
-     * @return the path of /storage/emulated/0/Notifications
-     */
-    public static String getExternalNotificationsPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_NOTIFICATIONS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Pictures.
-     *
-     * @return the path of /storage/emulated/0/Pictures
-     */
-    public static String getExternalPicturesPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Movies.
-     *
-     * @return the path of /storage/emulated/0/Movies
-     */
-    public static String getExternalMoviesPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Download.
-     *
-     * @return the path of /storage/emulated/0/Download
-     */
-    public static String getExternalDownloadsPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/DCIM.
-     *
-     * @return the path of /storage/emulated/0/DCIM
-     */
-    public static String getExternalDcimPath() {
-        if (isExternalStorageDisable()) return "";
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Documents.
-     *
-     * @return the path of /storage/emulated/0/Documents
-     */
-    public static String getExternalDocumentsPath() {
-        if (isExternalStorageDisable()) return "";
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
-            return Environment.getExternalStorageDirectory().getAbsolutePath() + "/Documents";
-        }
-        return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package
-     */
-    public static String getExternalAppDataPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalCacheDir().getParentFile().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/cache.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/cache
-     */
-    public static String getExternalAppCachePath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalCacheDir().getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files
-     */
-    public static String getExternalAppFilesPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(null).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Music.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Music
-     */
-    public static String getExternalAppMusicPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_MUSIC).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Podcasts.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Podcasts
-     */
-    public static String getExternalAppPodcastsPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_PODCASTS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Ringtones.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Ringtones
-     */
-    public static String getExternalAppRingtonesPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_RINGTONES).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Alarms.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Alarms
-     */
-    public static String getExternalAppAlarmsPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_ALARMS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Notifications.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Notifications
-     */
-    public static String getExternalAppNotificationsPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_NOTIFICATIONS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Pictures.
-     *
-     * @return path of /storage/emulated/0/Android/data/package/files/Pictures
-     */
-    public static String getExternalAppPicturesPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_PICTURES).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Movies.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Movies
-     */
-    public static String getExternalAppMoviesPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_MOVIES).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Download.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Download
-     */
-    public static String getExternalAppDownloadPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/DCIM.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/DCIM
-     */
-    public static String getExternalAppDcimPath() {
-        if (isExternalStorageDisable()) return "";
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DCIM).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/data/package/files/Documents.
-     *
-     * @return the path of /storage/emulated/0/Android/data/package/files/Documents
-     */
-    public static String getExternalAppDocumentsPath() {
-        if (isExternalStorageDisable()) return "";
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
-            //noinspection ConstantConditions
-            return Utils.getApp().getExternalFilesDir(null).getAbsolutePath() + "/Documents";
-        }
-        //noinspection ConstantConditions
-        return Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS).getAbsolutePath();
-    }
-
-    /**
-     * Return the path of /storage/emulated/0/Android/obb/package.
-     *
-     * @return the path of /storage/emulated/0/Android/obb/package
-     */
-    public static String getExternalAppObbPath() {
-        if (isExternalStorageDisable()) return "";
-        return Utils.getApp().getObbDir().getAbsolutePath();
-    }
-
-    private static boolean isExternalStorageDisable() {
-        return !Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/PermissionUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
deleted file mode 100755
index 8c9123eec3..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/PermissionUtils.java
+++ /dev/null
@@ -1,363 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.annotation.RequiresApi;
-import android.support.v4.content.ContextCompat;
-import android.util.Log;
-import android.view.MotionEvent;
-import android.view.WindowManager;
-
-import com.blankj.utilcode.constant.PermissionConstants;
-import com.blankj.utilcode.util.PermissionUtils.OnRationaleListener.ShouldRequest;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Set;
-
-import static com.blankj.utilcode.constant.PermissionConstants.Permission;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/12/29
- *     desc  : utils about permission
- * </pre>
- */
-public final class PermissionUtils {
-
-    private static final List<String> PERMISSIONS = getPermissions();
-
-    private static PermissionUtils sInstance;
-
-    private OnRationaleListener mOnRationaleListener;
-    private SimpleCallback      mSimpleCallback;
-    private FullCallback        mFullCallback;
-    private ThemeCallback       mThemeCallback;
-    private Set<String>         mPermissions;
-    private List<String>        mPermissionsRequest;
-    private List<String>        mPermissionsGranted;
-    private List<String>        mPermissionsDenied;
-    private List<String>        mPermissionsDeniedForever;
-
-    /**
-     * Return the permissions used in application.
-     *
-     * @return the permissions used in application
-     */
-    public static List<String> getPermissions() {
-        return getPermissions(Utils.getApp().getPackageName());
-    }
-
-    /**
-     * Return the permissions used in application.
-     *
-     * @param packageName The name of the package.
-     * @return the permissions used in application
-     */
-    public static List<String> getPermissions(final String packageName) {
-        PackageManager pm = Utils.getApp().getPackageManager();
-        try {
-            return Arrays.asList(
-                    pm.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS)
-                            .requestedPermissions
-            );
-        } catch (PackageManager.NameNotFoundException e) {
-            e.printStackTrace();
-            return Collections.emptyList();
-        }
-    }
-
-    /**
-     * Return whether <em>you</em> have granted the permissions.
-     *
-     * @param permissions The permissions.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isGranted(final String... permissions) {
-        for (String permission : permissions) {
-            if (!isGranted(permission)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static boolean isGranted(final String permission) {
-        return Build.VERSION.SDK_INT < Build.VERSION_CODES.M
-                || PackageManager.PERMISSION_GRANTED
-                == ContextCompat.checkSelfPermission(Utils.getApp(), permission);
-    }
-
-    /**
-     * Launch the application's details settings.
-     */
-    public static void launchAppDetailsSettings() {
-        Intent intent = new Intent("android.settings.APPLICATION_DETAILS_SETTINGS");
-        intent.setData(Uri.parse("package:" + Utils.getApp().getPackageName()));
-        Utils.getApp().startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-    }
-
-    /**
-     * Set the permissions.
-     *
-     * @param permissions The permissions.
-     * @return the single {@link PermissionUtils} instance
-     */
-    public static PermissionUtils permission(@Permission final String... permissions) {
-        return new PermissionUtils(permissions);
-    }
-
-    private PermissionUtils(final String... permissions) {
-        mPermissions = new LinkedHashSet<>();
-        for (String permission : permissions) {
-            for (String aPermission : PermissionConstants.getPermissions(permission)) {
-                if (PERMISSIONS.contains(aPermission)) {
-                    mPermissions.add(aPermission);
-                }
-            }
-        }
-        sInstance = this;
-    }
-
-    /**
-     * Set rationale listener.
-     *
-     * @param listener The rationale listener.
-     * @return the single {@link PermissionUtils} instance
-     */
-    public PermissionUtils rationale(final OnRationaleListener listener) {
-        mOnRationaleListener = listener;
-        return this;
-    }
-
-    /**
-     * Set the simple call back.
-     *
-     * @param callback the simple call back
-     * @return the single {@link PermissionUtils} instance
-     */
-    public PermissionUtils callback(final SimpleCallback callback) {
-        mSimpleCallback = callback;
-        return this;
-    }
-
-    /**
-     * Set the full call back.
-     *
-     * @param callback the full call back
-     * @return the single {@link PermissionUtils} instance
-     */
-    public PermissionUtils callback(final FullCallback callback) {
-        mFullCallback = callback;
-        return this;
-    }
-
-    /**
-     * Set the theme callback.
-     *
-     * @param callback The theme callback.
-     * @return the single {@link PermissionUtils} instance
-     */
-    public PermissionUtils theme(final ThemeCallback callback) {
-        mThemeCallback = callback;
-        return this;
-    }
-
-    /**
-     * Start request.
-     */
-    public void request() {
-        mPermissionsGranted = new ArrayList<>();
-        mPermissionsRequest = new ArrayList<>();
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
-            mPermissionsGranted.addAll(mPermissions);
-            requestCallback();
-        } else {
-            for (String permission : mPermissions) {
-                if (isGranted(permission)) {
-                    mPermissionsGranted.add(permission);
-                } else {
-                    mPermissionsRequest.add(permission);
-                }
-            }
-            if (mPermissionsRequest.isEmpty()) {
-                requestCallback();
-            } else {
-                startPermissionActivity();
-            }
-        }
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    private void startPermissionActivity() {
-        mPermissionsDenied = new ArrayList<>();
-        mPermissionsDeniedForever = new ArrayList<>();
-        PermissionActivity.start(Utils.getApp());
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    private boolean rationale(final Activity activity) {
-        boolean isRationale = false;
-        if (mOnRationaleListener != null) {
-            for (String permission : mPermissionsRequest) {
-                if (activity.shouldShowRequestPermissionRationale(permission)) {
-                    getPermissionsStatus(activity);
-                    mOnRationaleListener.rationale(new ShouldRequest() {
-                        @Override
-                        public void again(boolean again) {
-                            if (again) {
-                                startPermissionActivity();
-                            } else {
-                                requestCallback();
-                            }
-                        }
-                    });
-                    isRationale = true;
-                    break;
-                }
-            }
-            mOnRationaleListener = null;
-        }
-        return isRationale;
-    }
-
-    private void getPermissionsStatus(final Activity activity) {
-        for (String permission : mPermissionsRequest) {
-            if (isGranted(permission)) {
-                mPermissionsGranted.add(permission);
-            } else {
-                mPermissionsDenied.add(permission);
-                if (!activity.shouldShowRequestPermissionRationale(permission)) {
-                    mPermissionsDeniedForever.add(permission);
-                }
-            }
-        }
-    }
-
-    private void requestCallback() {
-        if (mSimpleCallback != null) {
-            if (mPermissionsRequest.size() == 0
-                    || mPermissions.size() == mPermissionsGranted.size()) {
-                mSimpleCallback.onGranted();
-            } else {
-                if (!mPermissionsDenied.isEmpty()) {
-                    mSimpleCallback.onDenied();
-                }
-            }
-            mSimpleCallback = null;
-        }
-        if (mFullCallback != null) {
-            if (mPermissionsRequest.size() == 0
-                    || mPermissions.size() == mPermissionsGranted.size()) {
-                mFullCallback.onGranted(mPermissionsGranted);
-            } else {
-                if (!mPermissionsDenied.isEmpty()) {
-                    mFullCallback.onDenied(mPermissionsDeniedForever, mPermissionsDenied);
-                }
-            }
-            mFullCallback = null;
-        }
-        mOnRationaleListener = null;
-        mThemeCallback = null;
-    }
-
-    private void onRequestPermissionsResult(final Activity activity) {
-        getPermissionsStatus(activity);
-        requestCallback();
-    }
-
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    public static class PermissionActivity extends Activity {
-
-        public static void start(final Context context) {
-            Intent starter = new Intent(context, PermissionActivity.class);
-            starter.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            context.startActivity(starter);
-        }
-
-        @Override
-        protected void onCreate(@Nullable Bundle savedInstanceState) {
-            getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
-                    | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH);
-            if (sInstance == null) {
-                super.onCreate(savedInstanceState);
-                Log.e("PermissionUtils", "request permissions failed");
-                finish();
-                return;
-            }
-            if (sInstance.mThemeCallback != null) {
-                sInstance.mThemeCallback.onActivityCreate(this);
-            }
-            super.onCreate(savedInstanceState);
-
-            if (sInstance.rationale(this)) {
-                finish();
-                return;
-            }
-            if (sInstance.mPermissionsRequest != null) {
-                int size = sInstance.mPermissionsRequest.size();
-                if (size <= 0) {
-                    finish();
-                    return;
-                }
-                requestPermissions(sInstance.mPermissionsRequest.toArray(new String[size]), 1);
-            }
-        }
-
-        @Override
-        public void onRequestPermissionsResult(int requestCode,
-                                               @NonNull String[] permissions,
-                                               @NonNull int[] grantResults) {
-            sInstance.onRequestPermissionsResult(this);
-            finish();
-        }
-
-        @Override
-        public boolean dispatchTouchEvent(MotionEvent ev) {
-            finish();
-            return true;
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // interface
-    ///////////////////////////////////////////////////////////////////////////
-
-    public interface OnRationaleListener {
-
-        void rationale(ShouldRequest shouldRequest);
-
-        interface ShouldRequest {
-            void again(boolean again);
-        }
-    }
-
-    public interface SimpleCallback {
-        void onGranted();
-
-        void onDenied();
-    }
-
-    public interface FullCallback {
-        void onGranted(List<String> permissionsGranted);
-
-        void onDenied(List<String> permissionsDeniedForever, List<String> permissionsDenied);
-    }
-
-    public interface ThemeCallback {
-        void onActivityCreate(Activity activity);
-    }
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/PhoneUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
deleted file mode 100644
index e886ad067c..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/PhoneUtils.java
+++ /dev/null
@@ -1,334 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.app.PendingIntent;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.net.Uri;
-import android.os.Build;
-import android.support.annotation.RequiresPermission;
-import android.telephony.SmsManager;
-import android.telephony.TelephonyManager;
-import android.text.TextUtils;
-
-import java.util.List;
-
-import static android.Manifest.permission.CALL_PHONE;
-import static android.Manifest.permission.READ_PHONE_STATE;
-import static android.Manifest.permission.SEND_SMS;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/02
- *     desc  : utils about phone
- * </pre>
- */
-public final class PhoneUtils {
-
-    private PhoneUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return whether the device is phone.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isPhone() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        //noinspection ConstantConditions
-        return tm.getPhoneType() != TelephonyManager.PHONE_TYPE_NONE;
-    }
-
-    /**
-     * Return the unique device id.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
-     *
-     * @return the unique device id
-     */
-    @SuppressLint("HardwareIds")
-    @RequiresPermission(READ_PHONE_STATE)
-    public static String getDeviceId() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            //noinspection ConstantConditions
-            String imei = tm.getImei();
-            if (!TextUtils.isEmpty(imei)) return imei;
-            String meid = tm.getMeid();
-            return TextUtils.isEmpty(meid) ? "" : meid;
-
-        }
-        //noinspection ConstantConditions
-        return tm.getDeviceId();
-    }
-
-    /**
-     * Return the serial of device.
-     *
-     * @return the serial of device
-     */
-    @SuppressLint("HardwareIds")
-    @RequiresPermission(READ_PHONE_STATE)
-    public static String getSerial() {
-        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? Build.getSerial() : Build.SERIAL;
-    }
-
-    /**
-     * Return the IMEI.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
-     *
-     * @return the IMEI
-     */
-    @SuppressLint("HardwareIds")
-    @RequiresPermission(READ_PHONE_STATE)
-    public static String getIMEI() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            //noinspection ConstantConditions
-            return tm.getImei();
-        }
-        //noinspection ConstantConditions
-        return tm.getDeviceId();
-    }
-
-    /**
-     * Return the MEID.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
-     *
-     * @return the MEID
-     */
-    @SuppressLint("HardwareIds")
-    @RequiresPermission(READ_PHONE_STATE)
-    public static String getMEID() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            //noinspection ConstantConditions
-            return tm.getMeid();
-        }
-        //noinspection ConstantConditions
-        return tm.getDeviceId();
-    }
-
-    /**
-     * Return the IMSI.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
-     *
-     * @return the IMSI
-     */
-    @SuppressLint("HardwareIds")
-    @RequiresPermission(READ_PHONE_STATE)
-    public static String getIMSI() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        //noinspection ConstantConditions
-        return tm.getSubscriberId();
-    }
-
-    /**
-     * Returns the current phone type.
-     *
-     * @return the current phone type
-     * <ul>
-     * <li>{@link TelephonyManager#PHONE_TYPE_NONE}</li>
-     * <li>{@link TelephonyManager#PHONE_TYPE_GSM }</li>
-     * <li>{@link TelephonyManager#PHONE_TYPE_CDMA}</li>
-     * <li>{@link TelephonyManager#PHONE_TYPE_SIP }</li>
-     * </ul>
-     */
-    public static int getPhoneType() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        //noinspection ConstantConditions
-        return tm.getPhoneType();
-    }
-
-    /**
-     * Return whether sim card state is ready.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isSimCardReady() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        //noinspection ConstantConditions
-        return tm.getSimState() == TelephonyManager.SIM_STATE_READY;
-    }
-
-    /**
-     * Return the sim operator name.
-     *
-     * @return the sim operator name
-     */
-    public static String getSimOperatorName() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        //noinspection ConstantConditions
-        return tm.getSimOperatorName();
-    }
-
-    /**
-     * Return the sim operator using mnc.
-     *
-     * @return the sim operator
-     */
-    public static String getSimOperatorByMnc() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        //noinspection ConstantConditions
-        String operator = tm.getSimOperator();
-        if (operator == null) return "";
-        switch (operator) {
-            case "46000":
-            case "46002":
-            case "46007":
-            case "46020":
-                return "中国移动";
-            case "46001":
-            case "46006":
-            case "46009":
-                return "中国联通";
-            case "46003":
-            case "46005":
-            case "46011":
-                return "中国电信";
-            default:
-                return operator;
-        }
-    }
-
-    /**
-     * Return the phone status.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.READ_PHONE_STATE" />}</p>
-     *
-     * @return DeviceId = 99000311726612<br>
-     * DeviceSoftwareVersion = 00<br>
-     * Line1Number =<br>
-     * NetworkCountryIso = cn<br>
-     * NetworkOperator = 46003<br>
-     * NetworkOperatorName = 中国电信<br>
-     * NetworkType = 6<br>
-     * PhoneType = 2<br>
-     * SimCountryIso = cn<br>
-     * SimOperator = 46003<br>
-     * SimOperatorName = 中国电信<br>
-     * SimSerialNumber = 89860315045710604022<br>
-     * SimState = 5<br>
-     * SubscriberId(IMSI) = 460030419724900<br>
-     * VoiceMailNumber = *86<br>
-     */
-    @SuppressLint("HardwareIds")
-    @RequiresPermission(READ_PHONE_STATE)
-    public static String getPhoneStatus() {
-        TelephonyManager tm =
-                (TelephonyManager) Utils.getApp().getSystemService(Context.TELEPHONY_SERVICE);
-        String str = "";
-        //noinspection ConstantConditions
-        str += "DeviceId(IMEI) = " + tm.getDeviceId() + "\n";
-        str += "DeviceSoftwareVersion = " + tm.getDeviceSoftwareVersion() + "\n";
-        str += "Line1Number = " + tm.getLine1Number() + "\n";
-        str += "NetworkCountryIso = " + tm.getNetworkCountryIso() + "\n";
-        str += "NetworkOperator = " + tm.getNetworkOperator() + "\n";
-        str += "NetworkOperatorName = " + tm.getNetworkOperatorName() + "\n";
-        str += "NetworkType = " + tm.getNetworkType() + "\n";
-        str += "PhoneType = " + tm.getPhoneType() + "\n";
-        str += "SimCountryIso = " + tm.getSimCountryIso() + "\n";
-        str += "SimOperator = " + tm.getSimOperator() + "\n";
-        str += "SimOperatorName = " + tm.getSimOperatorName() + "\n";
-        str += "SimSerialNumber = " + tm.getSimSerialNumber() + "\n";
-        str += "SimState = " + tm.getSimState() + "\n";
-        str += "SubscriberId(IMSI) = " + tm.getSubscriberId() + "\n";
-        str += "VoiceMailNumber = " + tm.getVoiceMailNumber() + "\n";
-        return str;
-    }
-
-    /**
-     * Skip to dial.
-     *
-     * @param phoneNumber The phone number.
-     * @return {@code true}: operate successfully<br>{@code false}: otherwise
-     */
-    public static boolean dial(final String phoneNumber) {
-        Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phoneNumber));
-        if (isIntentAvailable(intent)) {
-            Utils.getApp().startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * Make a phone call.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.CALL_PHONE" />}</p>
-     *
-     * @param phoneNumber The phone number.
-     * @return {@code true}: operate successfully<br>{@code false}: otherwise
-     */
-    @RequiresPermission(CALL_PHONE)
-    public static boolean call(final String phoneNumber) {
-        Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phoneNumber));
-        if (isIntentAvailable(intent)) {
-            Utils.getApp().startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * Send sms.
-     *
-     * @param phoneNumber The phone number.
-     * @param content     The content.
-     * @return {@code true}: operate successfully<br>{@code false}: otherwise
-     */
-    public static boolean sendSms(final String phoneNumber, final String content) {
-        Uri uri = Uri.parse("smsto:" + phoneNumber);
-        Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
-        if (isIntentAvailable(intent)) {
-            intent.putExtra("sms_body", content);
-            Utils.getApp().startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * Send sms silently.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.SEND_SMS" />}</p>
-     *
-     * @param phoneNumber The phone number.
-     * @param content     The content.
-     */
-    @RequiresPermission(SEND_SMS)
-    public static void sendSmsSilent(final String phoneNumber, final String content) {
-        if (TextUtils.isEmpty(content)) return;
-        PendingIntent sentIntent = PendingIntent.getBroadcast(Utils.getApp(), 0, new Intent("send"), 0);
-        SmsManager smsManager = SmsManager.getDefault();
-        if (content.length() >= 70) {
-            List<String> ms = smsManager.divideMessage(content);
-            for (String str : ms) {
-                smsManager.sendTextMessage(phoneNumber, null, str, sentIntent, null);
-            }
-        } else {
-            smsManager.sendTextMessage(phoneNumber, null, content, sentIntent, null);
-        }
-    }
-
-    private static boolean isIntentAvailable(final Intent intent) {
-        return Utils.getApp()
-                .getPackageManager()
-                .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
-                .size() > 0;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ProcessUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
deleted file mode 100644
index c8000bc998..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ProcessUtils.java
+++ /dev/null
@@ -1,226 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.app.ActivityManager;
-import android.app.AppOpsManager;
-import android.app.usage.UsageStats;
-import android.app.usage.UsageStatsManager;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
-import android.os.Process;
-import android.provider.Settings;
-import android.support.annotation.NonNull;
-import android.support.annotation.RequiresPermission;
-import android.util.Log;
-
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import static android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/18
- *     desc  : utils about process
- * </pre>
- */
-public final class ProcessUtils {
-
-    private ProcessUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return the foreground process name.
-     * <p>Target APIs greater than 21 must hold
-     * {@code <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />}</p>
-     *
-     * @return the foreground process name
-     */
-    public static String getForegroundProcessName() {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> pInfo = am.getRunningAppProcesses();
-        if (pInfo != null && pInfo.size() > 0) {
-            for (ActivityManager.RunningAppProcessInfo aInfo : pInfo) {
-                if (aInfo.importance
-                        == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
-                    return aInfo.processName;
-                }
-            }
-        }
-        if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP) {
-            PackageManager pm = Utils.getApp().getPackageManager();
-            Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
-            List<ResolveInfo> list =
-                    pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
-            Log.i("ProcessUtils", list.toString());
-            if (list.size() <= 0) {
-                Log.i("ProcessUtils",
-                        "getForegroundProcessName: noun of access to usage information.");
-                return "";
-            }
-            try {// Access to usage information.
-                ApplicationInfo info =
-                        pm.getApplicationInfo(Utils.getApp().getPackageName(), 0);
-                AppOpsManager aom =
-                        (AppOpsManager) Utils.getApp().getSystemService(Context.APP_OPS_SERVICE);
-                //noinspection ConstantConditions
-                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
-                        info.uid,
-                        info.packageName) != AppOpsManager.MODE_ALLOWED) {
-                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-                    Utils.getApp().startActivity(intent);
-                }
-                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
-                        info.uid,
-                        info.packageName) != AppOpsManager.MODE_ALLOWED) {
-                    Log.i("ProcessUtils",
-                            "getForegroundProcessName: refuse to device usage stats.");
-                    return "";
-                }
-                UsageStatsManager usageStatsManager = (UsageStatsManager) Utils.getApp()
-                        .getSystemService(Context.USAGE_STATS_SERVICE);
-                List<UsageStats> usageStatsList = null;
-                if (usageStatsManager != null) {
-                    long endTime = System.currentTimeMillis();
-                    long beginTime = endTime - 86400000 * 7;
-                    usageStatsList = usageStatsManager
-                            .queryUsageStats(UsageStatsManager.INTERVAL_BEST,
-                                    beginTime, endTime);
-                }
-                if (usageStatsList == null || usageStatsList.isEmpty()) return null;
-                UsageStats recentStats = null;
-                for (UsageStats usageStats : usageStatsList) {
-                    if (recentStats == null
-                            || usageStats.getLastTimeUsed() > recentStats.getLastTimeUsed()) {
-                        recentStats = usageStats;
-                    }
-                }
-                return recentStats == null ? null : recentStats.getPackageName();
-            } catch (PackageManager.NameNotFoundException e) {
-                e.printStackTrace();
-            }
-        }
-        return "";
-    }
-
-    /**
-     * Return all background processes.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />}</p>
-     *
-     * @return all background processes
-     */
-    @RequiresPermission(KILL_BACKGROUND_PROCESSES)
-    public static Set<String> getAllBackgroundProcesses() {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
-        Set<String> set = new HashSet<>();
-        if (info != null) {
-            for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-                Collections.addAll(set, aInfo.pkgList);
-            }
-        }
-        return set;
-    }
-
-    /**
-     * Kill all background processes.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />}</p>
-     *
-     * @return background processes were killed
-     */
-    @RequiresPermission(KILL_BACKGROUND_PROCESSES)
-    public static Set<String> killAllBackgroundProcesses() {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
-        Set<String> set = new HashSet<>();
-        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-            for (String pkg : aInfo.pkgList) {
-                am.killBackgroundProcesses(pkg);
-                set.add(pkg);
-            }
-        }
-        info = am.getRunningAppProcesses();
-        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-            for (String pkg : aInfo.pkgList) {
-                set.remove(pkg);
-            }
-        }
-        return set;
-    }
-
-    /**
-     * Kill background processes.
-     * <p>Must hold
-     * {@code <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />}</p>
-     *
-     * @param packageName The name of the package.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    @RequiresPermission(KILL_BACKGROUND_PROCESSES)
-    public static boolean killBackgroundProcesses(@NonNull final String packageName) {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
-        if (info == null || info.size() == 0) return true;
-        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-            if (Arrays.asList(aInfo.pkgList).contains(packageName)) {
-                am.killBackgroundProcesses(packageName);
-            }
-        }
-        info = am.getRunningAppProcesses();
-        if (info == null || info.size() == 0) return true;
-        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-            if (Arrays.asList(aInfo.pkgList).contains(packageName)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Return whether app running in the main process.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isMainProcess() {
-        return Utils.getApp().getPackageName().equals(getCurrentProcessName());
-    }
-
-    /**
-     * Return the name of current process.
-     *
-     * @return the name of current process
-     */
-    public static String getCurrentProcessName() {
-        ActivityManager am = (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
-        if (info == null || info.size() == 0) return null;
-        int pid = Process.myPid();
-        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-            if (aInfo.pid == pid) {
-                if (aInfo.processName != null) {
-                    return aInfo.processName;
-                }
-            }
-        }
-        return "";
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ResourceUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
deleted file mode 100644
index 92424163bb..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ResourceUtils.java
+++ /dev/null
@@ -1,330 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.support.annotation.RawRes;
-
-import java.io.BufferedOutputStream;
-import java.io.BufferedReader;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/05/07
- *     desc  : utils about resource
- * </pre>
- */
-public final class ResourceUtils {
-
-    private static final int BUFFER_SIZE = 8192;
-
-    private ResourceUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Copy the file from assets.
-     *
-     * @param assetsFilePath The path of file in assets.
-     * @param destFilePath   The path of destination file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyFileFromAssets(final String assetsFilePath, final String destFilePath) {
-        boolean res = true;
-        try {
-            String[] assets = Utils.getApp().getAssets().list(assetsFilePath);
-            if (assets.length > 0) {
-                for (String asset : assets) {
-                    res &= copyFileFromAssets(assetsFilePath + "/" + asset, destFilePath + "/" + asset);
-                }
-            } else {
-                res = writeFileFromIS(
-                        destFilePath,
-                        Utils.getApp().getAssets().open(assetsFilePath),
-                        false
-                );
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-            res = false;
-        }
-        return res;
-    }
-
-    /**
-     * Return the content of assets.
-     *
-     * @param assetsFilePath The path of file in assets.
-     * @return the content of assets
-     */
-    public static String readAssets2String(final String assetsFilePath) {
-        return readAssets2String(assetsFilePath, null);
-    }
-
-    /**
-     * Return the content of assets.
-     *
-     * @param assetsFilePath The path of file in assets.
-     * @param charsetName    The name of charset.
-     * @return the content of assets
-     */
-    public static String readAssets2String(final String assetsFilePath, final String charsetName) {
-        InputStream is;
-        try {
-            is = Utils.getApp().getAssets().open(assetsFilePath);
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        }
-        byte[] bytes = is2Bytes(is);
-        if (bytes == null) return null;
-        if (isSpace(charsetName)) {
-            return new String(bytes);
-        } else {
-            try {
-                return new String(bytes, charsetName);
-            } catch (UnsupportedEncodingException e) {
-                e.printStackTrace();
-                return "";
-            }
-        }
-    }
-
-    /**
-     * Return the content of file in assets.
-     *
-     * @param assetsPath The path of file in assets.
-     * @return the content of file in assets
-     */
-    public static List<String> readAssets2List(final String assetsPath) {
-        return readAssets2List(assetsPath, null);
-    }
-
-    /**
-     * Return the content of file in assets.
-     *
-     * @param assetsPath  The path of file in assets.
-     * @param charsetName The name of charset.
-     * @return the content of file in assets
-     */
-    public static List<String> readAssets2List(final String assetsPath,
-                                               final String charsetName) {
-        try {
-            return is2List(Utils.getApp().getResources().getAssets().open(assetsPath), charsetName);
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-
-
-    /**
-     * Copy the file from raw.
-     *
-     * @param resId        The resource id.
-     * @param destFilePath The path of destination file.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean copyFileFromRaw(@RawRes final int resId, final String destFilePath) {
-        return writeFileFromIS(
-                destFilePath,
-                Utils.getApp().getResources().openRawResource(resId),
-                false
-        );
-    }
-
-    /**
-     * Return the content of resource in raw.
-     *
-     * @param resId The resource id.
-     * @return the content of resource in raw
-     */
-    public static String readRaw2String(@RawRes final int resId) {
-        return readRaw2String(resId, null);
-    }
-
-    /**
-     * Return the content of resource in raw.
-     *
-     * @param resId       The resource id.
-     * @param charsetName The name of charset.
-     * @return the content of resource in raw
-     */
-    public static String readRaw2String(@RawRes final int resId, final String charsetName) {
-        InputStream is = Utils.getApp().getResources().openRawResource(resId);
-        byte[] bytes = is2Bytes(is);
-        if (bytes == null) return null;
-        if (isSpace(charsetName)) {
-            return new String(bytes);
-        } else {
-            try {
-                return new String(bytes, charsetName);
-            } catch (UnsupportedEncodingException e) {
-                e.printStackTrace();
-                return "";
-            }
-        }
-    }
-
-    /**
-     * Return the content of resource in raw.
-     *
-     * @param resId The resource id.
-     * @return the content of file in assets
-     */
-    public static List<String> readRaw2List(@RawRes final int resId) {
-        return readRaw2List(resId, null);
-    }
-
-    /**
-     * Return the content of resource in raw.
-     *
-     * @param resId       The resource id.
-     * @param charsetName The name of charset.
-     * @return the content of file in assets
-     */
-    public static List<String> readRaw2List(@RawRes final int resId,
-                                            final String charsetName) {
-        return is2List(Utils.getApp().getResources().openRawResource(resId), charsetName);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // other utils methods
-    ///////////////////////////////////////////////////////////////////////////
-
-    private static boolean writeFileFromIS(final String filePath,
-                                           final InputStream is,
-                                           final boolean append) {
-        return writeFileFromIS(getFileByPath(filePath), is, append);
-    }
-
-    private static boolean writeFileFromIS(final File file,
-                                           final InputStream is,
-                                           final boolean append) {
-        if (!createOrExistsFile(file) || is == null) return false;
-        OutputStream os = null;
-        try {
-            os = new BufferedOutputStream(new FileOutputStream(file, append));
-            byte data[] = new byte[BUFFER_SIZE];
-            int len;
-            while ((len = is.read(data, 0, BUFFER_SIZE)) != -1) {
-                os.write(data, 0, len);
-            }
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean createOrExistsFile(final File file) {
-        if (file == null) return false;
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static byte[] is2Bytes(final InputStream is) {
-        if (is == null) return null;
-        ByteArrayOutputStream os = null;
-        try {
-            os = new ByteArrayOutputStream();
-            byte[] b = new byte[BUFFER_SIZE];
-            int len;
-            while ((len = is.read(b, 0, BUFFER_SIZE)) != -1) {
-                os.write(b, 0, len);
-            }
-            return os.toByteArray();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                is.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private static List<String> is2List(final InputStream is,
-                                        final String charsetName) {
-        BufferedReader reader = null;
-        try {
-            List<String> list = new ArrayList<>();
-            if (isSpace(charsetName)) {
-                reader = new BufferedReader(new InputStreamReader(is));
-            } else {
-                reader = new BufferedReader(new InputStreamReader(is, charsetName));
-            }
-            String line;
-            while ((line = reader.readLine()) != null) {
-                list.add(line);
-            }
-            return list;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return null;
-        } finally {
-            try {
-                if (reader != null) {
-                    reader.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SDCardUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
deleted file mode 100644
index 04183db568..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SDCardUtils.java
+++ /dev/null
@@ -1,121 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.content.Context;
-import android.os.Environment;
-import android.os.storage.StorageManager;
-
-import java.lang.reflect.Array;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/11
- *     desc  : utils about sdcard
- * </pre>
- */
-public final class SDCardUtils {
-
-    private SDCardUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return whether sdcard is enabled by environment.
-     *
-     * @return {@code true}: enabled<br>{@code false}: disabled
-     */
-    public static boolean isSDCardEnableByEnvironment() {
-        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
-    }
-
-    /**
-     * Return the path of sdcard by environment.
-     *
-     * @return the path of sdcard by environment
-     */
-    public static String getSDCardPathByEnvironment() {
-        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
-            return Environment.getExternalStorageDirectory().getAbsolutePath();
-        }
-        return "";
-    }
-
-    /**
-     * Return whether sdcard is enabled.
-     *
-     * @return {@code true}: enabled<br>{@code false}: disabled
-     */
-    public static boolean isSDCardEnable() {
-        return !getSDCardPaths().isEmpty();
-    }
-
-    /**
-     * Return the paths of sdcard.
-     *
-     * @param removable True to return the paths of removable sdcard, false otherwise.
-     * @return the paths of sdcard
-     */
-    public static List<String> getSDCardPaths(final boolean removable) {
-        List<String> paths = new ArrayList<>();
-        StorageManager sm =
-                (StorageManager) Utils.getApp().getSystemService(Context.STORAGE_SERVICE);
-        try {
-            Class<?> storageVolumeClazz = Class.forName("android.os.storage.StorageVolume");
-            //noinspection JavaReflectionMemberAccess
-            Method getVolumeList = StorageManager.class.getMethod("getVolumeList");
-            //noinspection JavaReflectionMemberAccess
-            Method getPath = storageVolumeClazz.getMethod("getPath");
-            Method isRemovable = storageVolumeClazz.getMethod("isRemovable");
-            Object result = getVolumeList.invoke(sm);
-            final int length = Array.getLength(result);
-            for (int i = 0; i < length; i++) {
-                Object storageVolumeElement = Array.get(result, i);
-                String path = (String) getPath.invoke(storageVolumeElement);
-                boolean res = (Boolean) isRemovable.invoke(storageVolumeElement);
-                if (removable == res) {
-                    paths.add(path);
-                }
-            }
-        } catch (ClassNotFoundException e) {
-            e.printStackTrace();
-        } catch (InvocationTargetException e) {
-            e.printStackTrace();
-        } catch (NoSuchMethodException e) {
-            e.printStackTrace();
-        } catch (IllegalAccessException e) {
-            e.printStackTrace();
-        }
-        return paths;
-    }
-
-    /**
-     * Return the paths of sdcard.
-     *
-     * @return the paths of sdcard
-     */
-    public static List<String> getSDCardPaths() {
-        StorageManager storageManager = (StorageManager) Utils.getApp()
-                .getSystemService(Context.STORAGE_SERVICE);
-        List<String> paths = new ArrayList<>();
-        try {
-            //noinspection JavaReflectionMemberAccess
-            Method getVolumePathsMethod = StorageManager.class.getMethod("getVolumePaths");
-            getVolumePathsMethod.setAccessible(true);
-            Object invoke = getVolumePathsMethod.invoke(storageManager);
-            paths = Arrays.asList((String[]) invoke);
-        } catch (NoSuchMethodException e) {
-            e.printStackTrace();
-        } catch (IllegalAccessException e) {
-            e.printStackTrace();
-        } catch (InvocationTargetException e) {
-            e.printStackTrace();
-        }
-        return paths;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ScreenUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
deleted file mode 100644
index 7451763516..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ScreenUtils.java
+++ /dev/null
@@ -1,294 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.app.Activity;
-import android.app.KeyguardManager;
-import android.content.Context;
-import android.content.pm.ActivityInfo;
-import android.content.res.Configuration;
-import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Point;
-import android.os.Build;
-import android.provider.Settings;
-import android.support.annotation.NonNull;
-import android.support.annotation.RequiresPermission;
-import android.util.DisplayMetrics;
-import android.view.Surface;
-import android.view.View;
-import android.view.Window;
-import android.view.WindowManager;
-
-import static android.Manifest.permission.WRITE_SETTINGS;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/02
- *     desc  : utils about screen
- * </pre>
- */
-public final class ScreenUtils {
-
-    private ScreenUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return the width of screen, in pixel.
-     *
-     * @return the width of screen, in pixel
-     */
-    public static int getScreenWidth() {
-        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
-        Point point = new Point();
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            //noinspection ConstantConditions
-            wm.getDefaultDisplay().getRealSize(point);
-        } else {
-            //noinspection ConstantConditions
-            wm.getDefaultDisplay().getSize(point);
-        }
-        return point.x;
-    }
-
-    /**
-     * Return the height of screen, in pixel.
-     *
-     * @return the height of screen, in pixel
-     */
-    public static int getScreenHeight() {
-        WindowManager wm = (WindowManager) Utils.getApp().getSystemService(Context.WINDOW_SERVICE);
-        Point point = new Point();
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            //noinspection ConstantConditions
-            wm.getDefaultDisplay().getRealSize(point);
-        } else {
-            //noinspection ConstantConditions
-            wm.getDefaultDisplay().getSize(point);
-        }
-        return point.y;
-    }
-
-    /**
-     * Return the density of screen.
-     *
-     * @return the density of screen
-     */
-    public static float getScreenDensity() {
-        return Resources.getSystem().getDisplayMetrics().density;
-    }
-
-    /**
-     * Return the screen density expressed as dots-per-inch.
-     *
-     * @return the screen density expressed as dots-per-inch
-     */
-    public static int getScreenDensityDpi() {
-        return Resources.getSystem().getDisplayMetrics().densityDpi;
-    }
-
-    /**
-     * Set full screen.
-     *
-     * @param activity The activity.
-     */
-    public static void setFullScreen(@NonNull final Activity activity) {
-        activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-    }
-
-    /**
-     * Set non full screen.
-     *
-     * @param activity The activity.
-     */
-    public static void setNonFullScreen(@NonNull final Activity activity) {
-        activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-    }
-
-    /**
-     * Toggle full screen.
-     *
-     * @param activity The activity.
-     */
-    public static void toggleFullScreen(@NonNull final Activity activity) {
-        int fullScreenFlag = WindowManager.LayoutParams.FLAG_FULLSCREEN;
-        Window window = activity.getWindow();
-        if ((window.getAttributes().flags & fullScreenFlag) == fullScreenFlag) {
-            window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN
-                    | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
-        } else {
-            window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN
-                    | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
-        }
-    }
-
-    /**
-     * Return whether screen is full.
-     *
-     * @param activity The activity.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isFullScreen(@NonNull final Activity activity) {
-        int fullScreenFlag = WindowManager.LayoutParams.FLAG_FULLSCREEN;
-        return (activity.getWindow().getAttributes().flags & fullScreenFlag) == fullScreenFlag;
-    }
-
-    /**
-     * Set the screen to landscape.
-     *
-     * @param activity The activity.
-     */
-    public static void setLandscape(@NonNull final Activity activity) {
-        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
-    }
-
-    /**
-     * Set the screen to portrait.
-     *
-     * @param activity The activity.
-     */
-    public static void setPortrait(@NonNull final Activity activity) {
-        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
-    }
-
-    /**
-     * Return whether screen is landscape.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isLandscape() {
-        return Utils.getApp().getResources().getConfiguration().orientation
-                == Configuration.ORIENTATION_LANDSCAPE;
-    }
-
-    /**
-     * Return whether screen is portrait.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isPortrait() {
-        return Utils.getApp().getResources().getConfiguration().orientation
-                == Configuration.ORIENTATION_PORTRAIT;
-    }
-
-    /**
-     * Return the rotation of screen.
-     *
-     * @param activity The activity.
-     * @return the rotation of screen
-     */
-    public static int getScreenRotation(@NonNull final Activity activity) {
-        switch (activity.getWindowManager().getDefaultDisplay().getRotation()) {
-            case Surface.ROTATION_0:
-                return 0;
-            case Surface.ROTATION_90:
-                return 90;
-            case Surface.ROTATION_180:
-                return 180;
-            case Surface.ROTATION_270:
-                return 270;
-            default:
-                return 0;
-        }
-    }
-
-    /**
-     * Return the bitmap of screen.
-     *
-     * @param activity The activity.
-     * @return the bitmap of screen
-     */
-    public static Bitmap screenShot(@NonNull final Activity activity) {
-        return screenShot(activity, false);
-    }
-
-    /**
-     * Return the bitmap of screen.
-     *
-     * @param activity          The activity.
-     * @param isDeleteStatusBar True to delete status bar, false otherwise.
-     * @return the bitmap of screen
-     */
-    public static Bitmap screenShot(@NonNull final Activity activity, boolean isDeleteStatusBar) {
-        View decorView = activity.getWindow().getDecorView();
-        decorView.setDrawingCacheEnabled(true);
-        decorView.setWillNotCacheDrawing(false);
-        Bitmap bmp = decorView.getDrawingCache();
-        if (bmp == null) return null;
-        DisplayMetrics dm = new DisplayMetrics();
-        activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
-        Bitmap ret;
-        if (isDeleteStatusBar) {
-            Resources resources = activity.getResources();
-            int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
-            int statusBarHeight = resources.getDimensionPixelSize(resourceId);
-            ret = Bitmap.createBitmap(
-                    bmp,
-                    0,
-                    statusBarHeight,
-                    dm.widthPixels,
-                    dm.heightPixels - statusBarHeight
-            );
-        } else {
-            ret = Bitmap.createBitmap(bmp, 0, 0, dm.widthPixels, dm.heightPixels);
-        }
-        decorView.destroyDrawingCache();
-        return ret;
-    }
-
-    /**
-     * Return whether screen is locked.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isScreenLock() {
-        KeyguardManager km =
-                (KeyguardManager) Utils.getApp().getSystemService(Context.KEYGUARD_SERVICE);
-        //noinspection ConstantConditions
-        return km.inKeyguardRestrictedInputMode();
-    }
-
-    /**
-     * Set the duration of sleep.
-     * <p>Must hold {@code <uses-permission android:name="android.permission.WRITE_SETTINGS" />}</p>
-     *
-     * @param duration The duration.
-     */
-    @RequiresPermission(WRITE_SETTINGS)
-    public static void setSleepDuration(final int duration) {
-        Settings.System.putInt(
-                Utils.getApp().getContentResolver(),
-                Settings.System.SCREEN_OFF_TIMEOUT,
-                duration
-        );
-    }
-
-    /**
-     * Return the duration of sleep.
-     *
-     * @return the duration of sleep.
-     */
-    public static int getSleepDuration() {
-        try {
-            return Settings.System.getInt(
-                    Utils.getApp().getContentResolver(),
-                    Settings.System.SCREEN_OFF_TIMEOUT
-            );
-        } catch (Settings.SettingNotFoundException e) {
-            e.printStackTrace();
-            return -123;
-        }
-    }
-
-    /**
-     * Return whether device is tablet.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isTablet() {
-        return (Utils.getApp().getResources().getConfiguration().screenLayout
-                & Configuration.SCREENLAYOUT_SIZE_MASK)
-                >= Configuration.SCREENLAYOUT_SIZE_LARGE;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ServiceUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
deleted file mode 100644
index 752afaca9b..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ServiceUtils.java
+++ /dev/null
@@ -1,179 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.app.ActivityManager;
-import android.app.ActivityManager.RunningServiceInfo;
-import android.content.Context;
-import android.content.Intent;
-import android.content.ServiceConnection;
-
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/02
- *     desc  : utils about service
- * </pre>
- */
-public final class ServiceUtils {
-
-    private ServiceUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Return all of the services are running.
-     *
-     * @return all of the services are running
-     */
-    public static Set getAllRunningServices() {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<RunningServiceInfo> info = am.getRunningServices(0x7FFFFFFF);
-        Set<String> names = new HashSet<>();
-        if (info == null || info.size() == 0) return null;
-        for (RunningServiceInfo aInfo : info) {
-            names.add(aInfo.service.getClassName());
-        }
-        return names;
-    }
-
-    /**
-     * Start the service.
-     *
-     * @param className The name of class.
-     */
-    public static void startService(final String className) {
-        try {
-            startService(Class.forName(className));
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Start the service.
-     *
-     * @param cls The service class.
-     */
-    public static void startService(final Class<?> cls) {
-        Intent intent = new Intent(Utils.getApp(), cls);
-        Utils.getApp().startService(intent);
-    }
-
-    /**
-     * Stop the service.
-     *
-     * @param className The name of class.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean stopService(final String className) {
-        try {
-            return stopService(Class.forName(className));
-        } catch (Exception e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Stop the service.
-     *
-     * @param cls The name of class.
-     * @return {@code true}: success<br>{@code false}: fail
-     */
-    public static boolean stopService(final Class<?> cls) {
-        Intent intent = new Intent(Utils.getApp(), cls);
-        return Utils.getApp().stopService(intent);
-    }
-
-    /**
-     * Bind the service.
-     *
-     * @param className The name of class.
-     * @param conn      The ServiceConnection object.
-     * @param flags     Operation options for the binding.
-     *                  <ul>
-     *                  <li>0</li>
-     *                  <li>{@link Context#BIND_AUTO_CREATE}</li>
-     *                  <li>{@link Context#BIND_DEBUG_UNBIND}</li>
-     *                  <li>{@link Context#BIND_NOT_FOREGROUND}</li>
-     *                  <li>{@link Context#BIND_ABOVE_CLIENT}</li>
-     *                  <li>{@link Context#BIND_ALLOW_OOM_MANAGEMENT}</li>
-     *                  <li>{@link Context#BIND_WAIVE_PRIORITY}</li>
-     *                  </ul>
-     */
-    public static void bindService(final String className,
-                                   final ServiceConnection conn,
-                                   final int flags) {
-        try {
-            bindService(Class.forName(className), conn, flags);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Bind the service.
-     *
-     * @param cls   The service class.
-     * @param conn  The ServiceConnection object.
-     * @param flags Operation options for the binding.
-     *              <ul>
-     *              <li>0</li>
-     *              <li>{@link Context#BIND_AUTO_CREATE}</li>
-     *              <li>{@link Context#BIND_DEBUG_UNBIND}</li>
-     *              <li>{@link Context#BIND_NOT_FOREGROUND}</li>
-     *              <li>{@link Context#BIND_ABOVE_CLIENT}</li>
-     *              <li>{@link Context#BIND_ALLOW_OOM_MANAGEMENT}</li>
-     *              <li>{@link Context#BIND_WAIVE_PRIORITY}</li>
-     *              </ul>
-     */
-    public static void bindService(final Class<?> cls,
-                                   final ServiceConnection conn,
-                                   final int flags) {
-        Intent intent = new Intent(Utils.getApp(), cls);
-        Utils.getApp().bindService(intent, conn, flags);
-    }
-
-    /**
-     * Unbind the service.
-     *
-     * @param conn The ServiceConnection object.
-     */
-    public static void unbindService(final ServiceConnection conn) {
-        Utils.getApp().unbindService(conn);
-    }
-
-    /**
-     * Return whether service is running.
-     *
-     * @param cls The service class.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isServiceRunning(final Class<?> cls) {
-        return isServiceRunning(cls.getName());
-    }
-
-    /**
-     * Return whether service is running.
-     *
-     * @param className The name of class.
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isServiceRunning(final String className) {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<RunningServiceInfo> info = am.getRunningServices(0x7FFFFFFF);
-        if (info == null || info.size() == 0) return false;
-        for (RunningServiceInfo aInfo : info) {
-            if (className.equals(aInfo.service.getClassName())) return true;
-        }
-        return false;
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ShellUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ShellUtils.java
deleted file mode 100644
index 194ac40ed0..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ShellUtils.java
+++ /dev/null
@@ -1,200 +0,0 @@
-package com.blankj.utilcode.util;
-
-import java.io.BufferedReader;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.util.List;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/07
- *     desc  : utils about shell
- * </pre>
- */
-public final class ShellUtils {
-
-    private static final String LINE_SEP = System.getProperty("line.separator");
-
-    private ShellUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Execute the command.
-     *
-     * @param command  The command.
-     * @param isRooted True to use root, false otherwise.
-     * @return the single {@link CommandResult} instance
-     */
-    public static CommandResult execCmd(final String command, final boolean isRooted) {
-        return execCmd(new String[]{command}, isRooted, true);
-    }
-
-    /**
-     * Execute the command.
-     *
-     * @param commands The commands.
-     * @param isRooted True to use root, false otherwise.
-     * @return the single {@link CommandResult} instance
-     */
-    public static CommandResult execCmd(final List<String> commands, final boolean isRooted) {
-        return execCmd(commands == null ? null : commands.toArray(new String[]{}), isRooted, true);
-    }
-
-    /**
-     * Execute the command.
-     *
-     * @param commands The commands.
-     * @param isRooted True to use root, false otherwise.
-     * @return the single {@link CommandResult} instance
-     */
-    public static CommandResult execCmd(final String[] commands, final boolean isRooted) {
-        return execCmd(commands, isRooted, true);
-    }
-
-    /**
-     * Execute the command.
-     *
-     * @param command         The command.
-     * @param isRooted        True to use root, false otherwise.
-     * @param isNeedResultMsg True to return the message of result, false otherwise.
-     * @return the single {@link CommandResult} instance
-     */
-    public static CommandResult execCmd(final String command,
-                                        final boolean isRooted,
-                                        final boolean isNeedResultMsg) {
-        return execCmd(new String[]{command}, isRooted, isNeedResultMsg);
-    }
-
-    /**
-     * Execute the command.
-     *
-     * @param commands        The commands.
-     * @param isRooted        True to use root, false otherwise.
-     * @param isNeedResultMsg True to return the message of result, false otherwise.
-     * @return the single {@link CommandResult} instance
-     */
-    public static CommandResult execCmd(final List<String> commands,
-                                        final boolean isRooted,
-                                        final boolean isNeedResultMsg) {
-        return execCmd(commands == null ? null : commands.toArray(new String[]{}),
-                isRooted,
-                isNeedResultMsg);
-    }
-
-    /**
-     * Execute the command.
-     *
-     * @param commands        The commands.
-     * @param isRooted        True to use root, false otherwise.
-     * @param isNeedResultMsg True to return the message of result, false otherwise.
-     * @return the single {@link CommandResult} instance
-     */
-    public static CommandResult execCmd(final String[] commands,
-                                        final boolean isRooted,
-                                        final boolean isNeedResultMsg) {
-        int result = -1;
-        if (commands == null || commands.length == 0) {
-            return new CommandResult(result, "", "");
-        }
-        Process process = null;
-        BufferedReader successResult = null;
-        BufferedReader errorResult = null;
-        StringBuilder successMsg = null;
-        StringBuilder errorMsg = null;
-        DataOutputStream os = null;
-        try {
-            process = Runtime.getRuntime().exec(isRooted ? "su" : "sh");
-            os = new DataOutputStream(process.getOutputStream());
-            for (String command : commands) {
-                if (command == null) continue;
-                os.write(command.getBytes());
-                os.writeBytes(LINE_SEP);
-                os.flush();
-            }
-            os.writeBytes("exit" + LINE_SEP);
-            os.flush();
-            result = process.waitFor();
-            if (isNeedResultMsg) {
-                successMsg = new StringBuilder();
-                errorMsg = new StringBuilder();
-                successResult = new BufferedReader(
-                        new InputStreamReader(process.getInputStream(), "UTF-8")
-                );
-                errorResult = new BufferedReader(
-                        new InputStreamReader(process.getErrorStream(), "UTF-8")
-                );
-                String line;
-                if ((line = successResult.readLine()) != null) {
-                    successMsg.append(line);
-                    while ((line = successResult.readLine()) != null) {
-                        successMsg.append(LINE_SEP).append(line);
-                    }
-                }
-                if ((line = errorResult.readLine()) != null) {
-                    errorMsg.append(line);
-                    while ((line = errorResult.readLine()) != null) {
-                        errorMsg.append(LINE_SEP).append(line);
-                    }
-                }
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                if (os != null) {
-                    os.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (successResult != null) {
-                    successResult.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                if (errorResult != null) {
-                    errorResult.close();
-                }
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            if (process != null) {
-                process.destroy();
-            }
-        }
-        return new CommandResult(
-                result,
-                successMsg == null ? "" : successMsg.toString(),
-                errorMsg == null ? "" : errorMsg.toString()
-        );
-    }
-
-    /**
-     * The result of command.
-     */
-    public static class CommandResult {
-        public int    result;
-        public String successMsg;
-        public String errorMsg;
-
-        public CommandResult(final int result, final String successMsg, final String errorMsg) {
-            this.result = result;
-            this.successMsg = successMsg;
-            this.errorMsg = errorMsg;
-        }
-
-        @Override
-        public String toString() {
-            return "result: " + result + "\n" +
-                    "successMsg: " + successMsg + "\n" +
-                    "errorMsg: " + errorMsg;
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
deleted file mode 100644
index 77b35a507d..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/SnackbarUtils.java
+++ /dev/null
@@ -1,307 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.support.annotation.ColorInt;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.IntDef;
-import android.support.annotation.IntRange;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.design.widget.Snackbar;
-import android.text.SpannableString;
-import android.text.Spanned;
-import android.text.style.ForegroundColorSpan;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.ref.WeakReference;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/10/16
- *     desc  : utils about snackbar
- * </pre>
- */
-public final class SnackbarUtils {
-
-    public static final int LENGTH_INDEFINITE = -2;
-    public static final int LENGTH_SHORT      = -1;
-    public static final int LENGTH_LONG       = 0;
-
-    @IntDef({LENGTH_INDEFINITE, LENGTH_SHORT, LENGTH_LONG})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface Duration {
-    }
-
-    private static final int COLOR_DEFAULT = 0xFEFFFFFF;
-    private static final int COLOR_SUCCESS = 0xFF2BB600;
-    private static final int COLOR_WARNING = 0xFFFFC100;
-    private static final int COLOR_ERROR   = 0xFFFF0000;
-    private static final int COLOR_MESSAGE = 0xFFFFFFFF;
-
-    private static WeakReference<Snackbar> sReference;
-
-    private View                 view;
-    private CharSequence         message;
-    private int                  messageColor;
-    private int                  bgColor;
-    private int                  bgResource;
-    private int                  duration;
-    private CharSequence         actionText;
-    private int                  actionTextColor;
-    private View.OnClickListener actionListener;
-    private int                  bottomMargin;
-
-    private SnackbarUtils(final View parent) {
-        setDefault();
-        this.view = parent;
-    }
-
-    private void setDefault() {
-        message = "";
-        messageColor = COLOR_DEFAULT;
-        bgColor = COLOR_DEFAULT;
-        bgResource = -1;
-        duration = LENGTH_SHORT;
-        actionText = "";
-        actionTextColor = COLOR_DEFAULT;
-        bottomMargin = 0;
-    }
-
-    /**
-     * Set the view to find a parent from.
-     *
-     * @param view The view to find a parent from.
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public static SnackbarUtils with(@NonNull final View view) {
-        return new SnackbarUtils(view);
-    }
-
-    /**
-     * Set the message.
-     *
-     * @param msg The message.
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public SnackbarUtils setMessage(@NonNull final CharSequence msg) {
-        this.message = msg;
-        return this;
-    }
-
-    /**
-     * Set the color of message.
-     *
-     * @param color The color of message.
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public SnackbarUtils setMessageColor(@ColorInt final int color) {
-        this.messageColor = color;
-        return this;
-    }
-
-    /**
-     * Set the color of background.
-     *
-     * @param color The color of background.
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public SnackbarUtils setBgColor(@ColorInt final int color) {
-        this.bgColor = color;
-        return this;
-    }
-
-    /**
-     * Set the resource of background.
-     *
-     * @param bgResource The resource of background.
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public SnackbarUtils setBgResource(@DrawableRes final int bgResource) {
-        this.bgResource = bgResource;
-        return this;
-    }
-
-    /**
-     * Set the duration.
-     *
-     * @param duration The duration.
-     *                 <ul>
-     *                 <li>{@link Duration#LENGTH_INDEFINITE}</li>
-     *                 <li>{@link Duration#LENGTH_SHORT     }</li>
-     *                 <li>{@link Duration#LENGTH_LONG      }</li>
-     *                 </ul>
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public SnackbarUtils setDuration(@Duration final int duration) {
-        this.duration = duration;
-        return this;
-    }
-
-    /**
-     * Set the action.
-     *
-     * @param text     The text.
-     * @param listener The click listener.
-     * @return the single {@link SnackbarUtils} instance
-     */
-    public SnackbarUtils setAction(@NonNull final CharSequence text,
-                                   @NonNull final View.OnClickListener listener) {
-        return setAction(text, COLOR_DEFAULT, listener);
-    }
-
-    /**
-     * Set the action.
-     *
-     * @param text     The text.
-     * @param color    The color of text.
-     * @param listener The click listener.
-     * @return the single {@link SnackbarUtils} instance
-     */
-
-    public SnackbarUtils setAction(@NonNull final CharSequence text,
-                                   @ColorInt final int color,
-                                   @NonNull final View.OnClickListener listener) {
-        this.actionText = text;
-        this.actionTextColor = color;
-        this.actionListener = listener;
-        return this;
-    }
-
-    /**
-     * Set the bottom margin.
-     *
-     * @param bottomMargin The size of bottom margin, in pixel.
-     */
-    public SnackbarUtils setBottomMargin(@IntRange(from = 1) final int bottomMargin) {
-        this.bottomMargin = bottomMargin;
-        return this;
-    }
-
-    /**
-     * Show the snackbar.
-     */
-    public void show() {
-        final View view = this.view;
-        if (view == null) return;
-        if (messageColor != COLOR_DEFAULT) {
-            SpannableString spannableString = new SpannableString(message);
-            ForegroundColorSpan colorSpan = new ForegroundColorSpan(messageColor);
-            spannableString.setSpan(
-                    colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
-            );
-            sReference = new WeakReference<>(Snackbar.make(view, spannableString, duration));
-        } else {
-            sReference = new WeakReference<>(Snackbar.make(view, message, duration));
-        }
-        final Snackbar snackbar = sReference.get();
-        final View snackbarView = snackbar.getView();
-        if (bgResource != -1) {
-            snackbarView.setBackgroundResource(bgResource);
-        } else if (bgColor != COLOR_DEFAULT) {
-            snackbarView.setBackgroundColor(bgColor);
-        }
-        if (bottomMargin != 0) {
-            ViewGroup.MarginLayoutParams params =
-                    (ViewGroup.MarginLayoutParams) snackbarView.getLayoutParams();
-            params.bottomMargin = bottomMargin;
-        }
-        if (actionText.length() > 0 && actionListener != null) {
-            if (actionTextColor != COLOR_DEFAULT) {
-                snackbar.setActionTextColor(actionTextColor);
-            }
-            snackbar.setAction(actionText, actionListener);
-        }
-        snackbar.show();
-    }
-
-    /**
-     * Show the snackbar with success style.
-     */
-    public void showSuccess() {
-        bgColor = COLOR_SUCCESS;
-        messageColor = COLOR_MESSAGE;
-        actionTextColor = COLOR_MESSAGE;
-        show();
-    }
-
-    /**
-     * Show the snackbar with warning style.
-     */
-    public void showWarning() {
-        bgColor = COLOR_WARNING;
-        messageColor = COLOR_MESSAGE;
-        actionTextColor = COLOR_MESSAGE;
-        show();
-    }
-
-    /**
-     * Show the snackbar with error style.
-     */
-    public void showError() {
-        bgColor = COLOR_ERROR;
-        messageColor = COLOR_MESSAGE;
-        actionTextColor = COLOR_MESSAGE;
-        show();
-    }
-
-    /**
-     * Dismiss the snackbar.
-     */
-    public static void dismiss() {
-        if (sReference != null && sReference.get() != null) {
-            sReference.get().dismiss();
-            sReference = null;
-        }
-    }
-
-    /**
-     * Return the view of snackbar.
-     *
-     * @return the view of snackbar
-     */
-    public static View getView() {
-        Snackbar snackbar = sReference.get();
-        if (snackbar == null) return null;
-        return snackbar.getView();
-    }
-
-    /**
-     * Add view to the snackbar.
-     * <p>Call it after {@link #show()}</p>
-     *
-     * @param layoutId The id of layout.
-     * @param params   The params.
-     */
-    public static void addView(@LayoutRes final int layoutId,
-                               @NonNull final ViewGroup.LayoutParams params) {
-        final View view = getView();
-        if (view != null) {
-            view.setPadding(0, 0, 0, 0);
-            Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
-            View child = LayoutInflater.from(view.getContext()).inflate(layoutId, null);
-            layout.addView(child, -1, params);
-        }
-    }
-
-    /**
-     * Add view to the snackbar.
-     * <p>Call it after {@link #show()}</p>
-     *
-     * @param child  The child view.
-     * @param params The params.
-     */
-    public static void addView(@NonNull final View child,
-                               @NonNull final ViewGroup.LayoutParams params) {
-        final View view = getView();
-        if (view != null) {
-            view.setPadding(0, 0, 0, 0);
-            Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) view;
-            layout.addView(child, params);
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ThreadUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
deleted file mode 100644
index 5c4aa6cc58..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ThreadUtils.java
+++ /dev/null
@@ -1,1119 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.os.Handler;
-import android.os.Looper;
-import android.support.annotation.IntRange;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.util.Log;
-
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ThreadFactory;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicLong;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/05/08
- *     desc  : utils about thread
- * </pre>
- */
-public final class ThreadUtils {
-
-    private static final Map<Integer, Map<Integer, ExecutorService>> TYPE_PRIORITY_POOLS =
-            new ConcurrentHashMap<>();
-    private static final Map<Task, ScheduledExecutorService>         TASK_SCHEDULED      =
-            new ConcurrentHashMap<>();
-
-    private static final byte TYPE_SINGLE = -1;
-    private static final byte TYPE_CACHED = -2;
-    private static final byte TYPE_IO     = -4;
-    private static final byte TYPE_CPU    = -8;
-
-    private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
-
-    /**
-     * Return whether the thread is the main thread.
-     *
-     * @return {@code true}: yes<br>{@code false}: no
-     */
-    public static boolean isMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
-
-    /**
-     * Return a thread pool that reuses a fixed number of threads
-     * operating off a shared unbounded queue, using the provided
-     * ThreadFactory to create new threads when needed.
-     *
-     * @param size The size of thread in the pool.
-     * @return a fixed thread pool
-     */
-    public static ExecutorService getFixedPool(@IntRange(from = 1) final int size) {
-        return getPoolByTypeAndPriority(size);
-    }
-
-    /**
-     * Return a thread pool that reuses a fixed number of threads
-     * operating off a shared unbounded queue, using the provided
-     * ThreadFactory to create new threads when needed.
-     *
-     * @param size     The size of thread in the pool.
-     * @param priority The priority of thread in the poll.
-     * @return a fixed thread pool
-     */
-    public static ExecutorService getFixedPool(@IntRange(from = 1) final int size,
-                                               @IntRange(from = 1, to = 10) final int priority) {
-        return getPoolByTypeAndPriority(size, priority);
-    }
-
-    /**
-     * Return a thread pool that uses a single worker thread operating
-     * off an unbounded queue, and uses the provided ThreadFactory to
-     * create a new thread when needed.
-     *
-     * @return a single thread pool
-     */
-    public static ExecutorService getSinglePool() {
-        return getPoolByTypeAndPriority(TYPE_SINGLE);
-    }
-
-    /**
-     * Return a thread pool that uses a single worker thread operating
-     * off an unbounded queue, and uses the provided ThreadFactory to
-     * create a new thread when needed.
-     *
-     * @param priority The priority of thread in the poll.
-     * @return a single thread pool
-     */
-    public static ExecutorService getSinglePool(@IntRange(from = 1, to = 10) final int priority) {
-        return getPoolByTypeAndPriority(TYPE_SINGLE, priority);
-    }
-
-    /**
-     * Return a thread pool that creates new threads as needed, but
-     * will reuse previously constructed threads when they are
-     * available.
-     *
-     * @return a cached thread pool
-     */
-    public static ExecutorService getCachedPool() {
-        return getPoolByTypeAndPriority(TYPE_CACHED);
-    }
-
-    /**
-     * Return a thread pool that creates new threads as needed, but
-     * will reuse previously constructed threads when they are
-     * available.
-     *
-     * @param priority The priority of thread in the poll.
-     * @return a cached thread pool
-     */
-    public static ExecutorService getCachedPool(@IntRange(from = 1, to = 10) final int priority) {
-        return getPoolByTypeAndPriority(TYPE_CACHED, priority);
-    }
-
-    /**
-     * Return a thread pool that creates (2 * CPU_COUNT + 1) threads
-     * operating off a queue which size is 128.
-     *
-     * @return a IO thread pool
-     */
-    public static ExecutorService getIoPool() {
-        return getPoolByTypeAndPriority(TYPE_CACHED);
-    }
-
-    /**
-     * Return a thread pool that creates (2 * CPU_COUNT + 1) threads
-     * operating off a queue which size is 128.
-     *
-     * @param priority The priority of thread in the poll.
-     * @return a IO thread pool
-     */
-    public static ExecutorService getIoPool(@IntRange(from = 1, to = 10) final int priority) {
-        return getPoolByTypeAndPriority(TYPE_CACHED, priority);
-    }
-
-    /**
-     * Return a thread pool that creates (CPU_COUNT + 1) threads
-     * operating off a queue which size is 128 and the maximum
-     * number of threads equals (2 * CPU_COUNT + 1).
-     *
-     * @return a cpu thread pool for
-     */
-    public static ExecutorService getCpuPool() {
-        return getPoolByTypeAndPriority(TYPE_CPU);
-    }
-
-    /**
-     * Return a thread pool that creates (CPU_COUNT + 1) threads
-     * operating off a queue which size is 128 and the maximum
-     * number of threads equals (2 * CPU_COUNT + 1).
-     *
-     * @param priority The priority of thread in the poll.
-     * @return a cpu thread pool for
-     */
-    public static ExecutorService getCpuPool(@IntRange(from = 1, to = 10) final int priority) {
-        return getPoolByTypeAndPriority(TYPE_CPU, priority);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool.
-     *
-     * @param size The size of thread in the fixed thread pool.
-     * @param task The task to execute.
-     * @param <T>  The type of the task's result.
-     */
-    public static <T> void executeByFixed(@IntRange(from = 1) final int size, final Task<T> task) {
-        execute(getPoolByTypeAndPriority(size), task);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool.
-     *
-     * @param size     The size of thread in the fixed thread pool.
-     * @param task     The task to execute.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByFixed(@IntRange(from = 1) final int size,
-                                          final Task<T> task,
-                                          @IntRange(from = 1, to = 10) final int priority) {
-        execute(getPoolByTypeAndPriority(size, priority), task);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool after the given delay.
-     *
-     * @param size  The size of thread in the fixed thread pool.
-     * @param task  The task to execute.
-     * @param delay The time from now to delay execution.
-     * @param unit  The time unit of the delay parameter.
-     * @param <T>   The type of the task's result.
-     */
-    public static <T> void executeByFixedWithDelay(@IntRange(from = 1) final int size,
-                                                   final Task<T> task,
-                                                   final long delay,
-                                                   final TimeUnit unit) {
-        executeWithDelay(getPoolByTypeAndPriority(size), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool after the given delay.
-     *
-     * @param size     The size of thread in the fixed thread pool.
-     * @param task     The task to execute.
-     * @param delay    The time from now to delay execution.
-     * @param unit     The time unit of the delay parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByFixedWithDelay(@IntRange(from = 1) final int size,
-                                                   final Task<T> task,
-                                                   final long delay,
-                                                   final TimeUnit unit,
-                                                   @IntRange(from = 1, to = 10) final int priority) {
-        executeWithDelay(getPoolByTypeAndPriority(size, priority), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool at fix rate.
-     *
-     * @param size   The size of thread in the fixed thread pool.
-     * @param task   The task to execute.
-     * @param period The period between successive executions.
-     * @param unit   The time unit of the period parameter.
-     * @param <T>    The type of the task's result.
-     */
-    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
-                                                   final Task<T> task,
-                                                   final long period,
-                                                   final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(size), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool at fix rate.
-     *
-     * @param size     The size of thread in the fixed thread pool.
-     * @param task     The task to execute.
-     * @param period   The period between successive executions.
-     * @param unit     The time unit of the period parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
-                                                   final Task<T> task,
-                                                   final long period,
-                                                   final TimeUnit unit,
-                                                   @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(getPoolByTypeAndPriority(size, priority), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool at fix rate.
-     *
-     * @param size         The size of thread in the fixed thread pool.
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
-                                                   final Task<T> task,
-                                                   long initialDelay,
-                                                   final long period,
-                                                   final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(size), task, initialDelay, period, unit);
-    }
-
-    /**
-     * Executes the given task in a fixed thread pool at fix rate.
-     *
-     * @param size         The size of thread in the fixed thread pool.
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param priority     The priority of thread in the poll.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByFixedAtFixRate(@IntRange(from = 1) final int size,
-                                                   final Task<T> task,
-                                                   long initialDelay,
-                                                   final long period,
-                                                   final TimeUnit unit,
-                                                   @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(getPoolByTypeAndPriority(size, priority), task, initialDelay, period, unit);
-    }
-
-    /**
-     * Executes the given task in a single thread pool.
-     *
-     * @param task The task to execute.
-     * @param <T>  The type of the task's result.
-     */
-    public static <T> void executeBySingle(final Task<T> task) {
-        execute(getPoolByTypeAndPriority(TYPE_SINGLE), task);
-    }
-
-    /**
-     * Executes the given task in a single thread pool.
-     *
-     * @param task     The task to execute.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeBySingle(final Task<T> task,
-                                           @IntRange(from = 1, to = 10) final int priority) {
-        execute(getPoolByTypeAndPriority(TYPE_SINGLE, priority), task);
-    }
-
-    /**
-     * Executes the given task in a single thread pool after the given delay.
-     *
-     * @param task  The task to execute.
-     * @param delay The time from now to delay execution.
-     * @param unit  The time unit of the delay parameter.
-     * @param <T>   The type of the task's result.
-     */
-    public static <T> void executeBySingleWithDelay(final Task<T> task,
-                                                    final long delay,
-                                                    final TimeUnit unit) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_SINGLE), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a single thread pool after the given delay.
-     *
-     * @param task     The task to execute.
-     * @param delay    The time from now to delay execution.
-     * @param unit     The time unit of the delay parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeBySingleWithDelay(final Task<T> task,
-                                                    final long delay,
-                                                    final TimeUnit unit,
-                                                    @IntRange(from = 1, to = 10) final int priority) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_SINGLE, priority), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a single thread pool at fix rate.
-     *
-     * @param task   The task to execute.
-     * @param period The period between successive executions.
-     * @param unit   The time unit of the period parameter.
-     * @param <T>    The type of the task's result.
-     */
-    public static <T> void executeBySingleAtFixRate(final Task<T> task,
-                                                    final long period,
-                                                    final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_SINGLE), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a single thread pool at fix rate.
-     *
-     * @param task     The task to execute.
-     * @param period   The period between successive executions.
-     * @param unit     The time unit of the period parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeBySingleAtFixRate(final Task<T> task,
-                                                    final long period,
-                                                    final TimeUnit unit,
-                                                    @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_SINGLE, priority), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a single thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeBySingleAtFixRate(final Task<T> task,
-                                                    long initialDelay,
-                                                    final long period,
-                                                    final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_SINGLE), task, initialDelay, period, unit);
-    }
-
-    /**
-     * Executes the given task in a single thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param priority     The priority of thread in the poll.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeBySingleAtFixRate(final Task<T> task,
-                                                    long initialDelay,
-                                                    final long period,
-                                                    final TimeUnit unit,
-                                                    @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(
-                getPoolByTypeAndPriority(TYPE_SINGLE, priority), task, initialDelay, period, unit
-        );
-    }
-
-    /**
-     * Executes the given task in a cached thread pool.
-     *
-     * @param task The task to execute.
-     * @param <T>  The type of the task's result.
-     */
-    public static <T> void executeByCached(final Task<T> task) {
-        execute(getPoolByTypeAndPriority(TYPE_CACHED), task);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool.
-     *
-     * @param task     The task to execute.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByCached(final Task<T> task,
-                                           @IntRange(from = 1, to = 10) final int priority) {
-        execute(getPoolByTypeAndPriority(TYPE_CACHED, priority), task);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool after the given delay.
-     *
-     * @param task  The task to execute.
-     * @param delay The time from now to delay execution.
-     * @param unit  The time unit of the delay parameter.
-     * @param <T>   The type of the task's result.
-     */
-    public static <T> void executeByCachedWithDelay(final Task<T> task,
-                                                    final long delay,
-                                                    final TimeUnit unit) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_CACHED), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool after the given delay.
-     *
-     * @param task     The task to execute.
-     * @param delay    The time from now to delay execution.
-     * @param unit     The time unit of the delay parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByCachedWithDelay(final Task<T> task,
-                                                    final long delay,
-                                                    final TimeUnit unit,
-                                                    @IntRange(from = 1, to = 10) final int priority) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_CACHED, priority), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool at fix rate.
-     *
-     * @param task   The task to execute.
-     * @param period The period between successive executions.
-     * @param unit   The time unit of the period parameter.
-     * @param <T>    The type of the task's result.
-     */
-    public static <T> void executeByCachedAtFixRate(final Task<T> task,
-                                                    final long period,
-                                                    final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CACHED), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool at fix rate.
-     *
-     * @param task     The task to execute.
-     * @param period   The period between successive executions.
-     * @param unit     The time unit of the period parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByCachedAtFixRate(final Task<T> task,
-                                                    final long period,
-                                                    final TimeUnit unit,
-                                                    @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CACHED, priority), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByCachedAtFixRate(final Task<T> task,
-                                                    long initialDelay,
-                                                    final long period,
-                                                    final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CACHED), task, initialDelay, period, unit);
-    }
-
-    /**
-     * Executes the given task in a cached thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param priority     The priority of thread in the poll.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByCachedAtFixRate(final Task<T> task,
-                                                    long initialDelay,
-                                                    final long period,
-                                                    final TimeUnit unit,
-                                                    @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(
-                getPoolByTypeAndPriority(TYPE_CACHED, priority), task, initialDelay, period, unit
-        );
-    }
-
-    /**
-     * Executes the given task in an IO thread pool.
-     *
-     * @param task The task to execute.
-     * @param <T>  The type of the task's result.
-     */
-    public static <T> void executeByIo(final Task<T> task) {
-        execute(getPoolByTypeAndPriority(TYPE_IO), task);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool.
-     *
-     * @param task     The task to execute.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByIo(final Task<T> task,
-                                       @IntRange(from = 1, to = 10) final int priority) {
-        execute(getPoolByTypeAndPriority(TYPE_IO, priority), task);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool after the given delay.
-     *
-     * @param task  The task to execute.
-     * @param delay The time from now to delay execution.
-     * @param unit  The time unit of the delay parameter.
-     * @param <T>   The type of the task's result.
-     */
-    public static <T> void executeByIoWithDelay(final Task<T> task,
-                                                final long delay,
-                                                final TimeUnit unit) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_IO), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool after the given delay.
-     *
-     * @param task     The task to execute.
-     * @param delay    The time from now to delay execution.
-     * @param unit     The time unit of the delay parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByIoWithDelay(final Task<T> task,
-                                                final long delay,
-                                                final TimeUnit unit,
-                                                @IntRange(from = 1, to = 10) final int priority) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_IO, priority), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool at fix rate.
-     *
-     * @param task   The task to execute.
-     * @param period The period between successive executions.
-     * @param unit   The time unit of the period parameter.
-     * @param <T>    The type of the task's result.
-     */
-    public static <T> void executeByIoAtFixRate(final Task<T> task,
-                                                final long period,
-                                                final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_IO), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool at fix rate.
-     *
-     * @param task     The task to execute.
-     * @param period   The period between successive executions.
-     * @param unit     The time unit of the period parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByIoAtFixRate(final Task<T> task,
-                                                final long period,
-                                                final TimeUnit unit,
-                                                @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_IO, priority), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByIoAtFixRate(final Task<T> task,
-                                                long initialDelay,
-                                                final long period,
-                                                final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_IO), task, initialDelay, period, unit);
-    }
-
-    /**
-     * Executes the given task in an IO thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param priority     The priority of thread in the poll.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByIoAtFixRate(final Task<T> task,
-                                                long initialDelay,
-                                                final long period,
-                                                final TimeUnit unit,
-                                                @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(
-                getPoolByTypeAndPriority(TYPE_IO, priority), task, initialDelay, period, unit
-        );
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool.
-     *
-     * @param task The task to execute.
-     * @param <T>  The type of the task's result.
-     */
-    public static <T> void executeByCpu(final Task<T> task) {
-        execute(getPoolByTypeAndPriority(TYPE_CPU), task);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool.
-     *
-     * @param task     The task to execute.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByCpu(final Task<T> task,
-                                        @IntRange(from = 1, to = 10) final int priority) {
-        execute(getPoolByTypeAndPriority(TYPE_CPU, priority), task);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool after the given delay.
-     *
-     * @param task  The task to execute.
-     * @param delay The time from now to delay execution.
-     * @param unit  The time unit of the delay parameter.
-     * @param <T>   The type of the task's result.
-     */
-    public static <T> void executeByCpuWithDelay(final Task<T> task,
-                                                 final long delay,
-                                                 final TimeUnit unit) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_CPU), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool after the given delay.
-     *
-     * @param task     The task to execute.
-     * @param delay    The time from now to delay execution.
-     * @param unit     The time unit of the delay parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByCpuWithDelay(final Task<T> task,
-                                                 final long delay,
-                                                 final TimeUnit unit,
-                                                 @IntRange(from = 1, to = 10) final int priority) {
-        executeWithDelay(getPoolByTypeAndPriority(TYPE_CPU, priority), task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool at fix rate.
-     *
-     * @param task   The task to execute.
-     * @param period The period between successive executions.
-     * @param unit   The time unit of the period parameter.
-     * @param <T>    The type of the task's result.
-     */
-    public static <T> void executeByCpuAtFixRate(final Task<T> task,
-                                                 final long period,
-                                                 final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CPU), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool at fix rate.
-     *
-     * @param task     The task to execute.
-     * @param period   The period between successive executions.
-     * @param unit     The time unit of the period parameter.
-     * @param priority The priority of thread in the poll.
-     * @param <T>      The type of the task's result.
-     */
-    public static <T> void executeByCpuAtFixRate(final Task<T> task,
-                                                 final long period,
-                                                 final TimeUnit unit,
-                                                 @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CPU, priority), task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByCpuAtFixRate(final Task<T> task,
-                                                 long initialDelay,
-                                                 final long period,
-                                                 final TimeUnit unit) {
-        executeAtFixedRate(getPoolByTypeAndPriority(TYPE_CPU), task, initialDelay, period, unit);
-    }
-
-    /**
-     * Executes the given task in a cpu thread pool at fix rate.
-     *
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param priority     The priority of thread in the poll.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByCpuAtFixRate(final Task<T> task,
-                                                 long initialDelay,
-                                                 final long period,
-                                                 final TimeUnit unit,
-                                                 @IntRange(from = 1, to = 10) final int priority) {
-        executeAtFixedRate(
-                getPoolByTypeAndPriority(TYPE_CPU, priority), task, initialDelay, period, unit
-        );
-    }
-
-    /**
-     * Executes the given task in a custom thread pool.
-     *
-     * @param pool The custom thread pool.
-     * @param task The task to execute.
-     * @param <T>  The type of the task's result.
-     */
-    public static <T> void executeByCustom(final ExecutorService pool, final Task<T> task) {
-        execute(pool, task);
-    }
-
-    /**
-     * Executes the given task in a custom thread pool after the given delay.
-     *
-     * @param pool  The custom thread pool.
-     * @param task  The task to execute.
-     * @param delay The time from now to delay execution.
-     * @param unit  The time unit of the delay parameter.
-     * @param <T>   The type of the task's result.
-     */
-    public static <T> void executeByCustomWithDelay(final ExecutorService pool,
-                                                    final Task<T> task,
-                                                    final long delay,
-                                                    final TimeUnit unit) {
-        executeWithDelay(pool, task, delay, unit);
-    }
-
-    /**
-     * Executes the given task in a custom thread pool at fix rate.
-     *
-     * @param pool   The custom thread pool.
-     * @param task   The task to execute.
-     * @param period The period between successive executions.
-     * @param unit   The time unit of the period parameter.
-     * @param <T>    The type of the task's result.
-     */
-    public static <T> void executeByCustomAtFixRate(final ExecutorService pool,
-                                                    final Task<T> task,
-                                                    final long period,
-                                                    final TimeUnit unit) {
-        executeAtFixedRate(pool, task, 0, period, unit);
-    }
-
-    /**
-     * Executes the given task in a custom thread pool at fix rate.
-     *
-     * @param pool         The custom thread pool.
-     * @param task         The task to execute.
-     * @param initialDelay The time to delay first execution.
-     * @param period       The period between successive executions.
-     * @param unit         The time unit of the initialDelay and period parameters.
-     * @param <T>          The type of the task's result.
-     */
-    public static <T> void executeByCustomAtFixRate(final ExecutorService pool,
-                                                    final Task<T> task,
-                                                    long initialDelay,
-                                                    final long period,
-                                                    final TimeUnit unit) {
-        executeAtFixedRate(pool, task, initialDelay, period, unit);
-    }
-
-    /**
-     * Cancel the given task.
-     *
-     * @param task The task to cancel.
-     */
-    public static void cancel(final Task task) {
-        task.cancel();
-    }
-
-    private static <T> void execute(final ExecutorService pool, final Task<T> task) {
-        executeWithDelay(pool, task, 0, TimeUnit.MILLISECONDS);
-    }
-
-    private static <T> void executeWithDelay(final ExecutorService pool,
-                                             final Task<T> task,
-                                             final long delay,
-                                             final TimeUnit unit) {
-        if (delay <= 0) {
-            getScheduledByTask(task).execute(new Runnable() {
-                @Override
-                public void run() {
-                    pool.execute(task);
-                }
-            });
-        } else {
-            getScheduledByTask(task).schedule(new Runnable() {
-                @Override
-                public void run() {
-                    pool.execute(task);
-                }
-            }, delay, unit);
-        }
-    }
-
-    private static <T> void executeAtFixedRate(final ExecutorService pool,
-                                               final Task<T> task,
-                                               long initialDelay,
-                                               final long period,
-                                               final TimeUnit unit) {
-        task.isSchedule = true;
-        getScheduledByTask(task).scheduleAtFixedRate(new Runnable() {
-            @Override
-            public void run() {
-                pool.execute(task);
-            }
-        }, initialDelay, period, unit);
-    }
-
-    private static ScheduledExecutorService getScheduledByTask(final Task task) {
-        ScheduledExecutorService scheduled = TASK_SCHEDULED.get(task);
-        if (scheduled == null) {
-            UtilsThreadFactory factory = new UtilsThreadFactory("scheduled", Thread.MAX_PRIORITY);
-            scheduled = Executors.newScheduledThreadPool(1, factory);
-            TASK_SCHEDULED.put(task, scheduled);
-        }
-        return scheduled;
-    }
-
-    private static void removeScheduleByTask(final Task task) {
-        ScheduledExecutorService scheduled = TASK_SCHEDULED.get(task);
-        if (scheduled != null) {
-            TASK_SCHEDULED.remove(task);
-            shutdownAndAwaitTermination(scheduled);
-        }
-    }
-
-    private static ExecutorService getPoolByTypeAndPriority(final int type) {
-        return getPoolByTypeAndPriority(type, Thread.NORM_PRIORITY);
-    }
-
-    private static ExecutorService getPoolByTypeAndPriority(final int type, final int priority) {
-        ExecutorService pool;
-        Map<Integer, ExecutorService> priorityPools = TYPE_PRIORITY_POOLS.get(type);
-        if (priorityPools == null) {
-            priorityPools = new ConcurrentHashMap<>();
-            pool = createPoolByTypeAndPriority(type, priority);
-            priorityPools.put(priority, pool);
-            TYPE_PRIORITY_POOLS.put(type, priorityPools);
-        } else {
-            pool = priorityPools.get(priority);
-            if (pool == null) {
-                pool = createPoolByTypeAndPriority(type, priority);
-                priorityPools.put(priority, pool);
-            }
-        }
-        return pool;
-    }
-
-    private static ExecutorService createPoolByTypeAndPriority(final int type, final int priority) {
-        switch (type) {
-            case TYPE_SINGLE:
-                return Executors.newSingleThreadExecutor(
-                        new UtilsThreadFactory("single", priority)
-                );
-            case TYPE_CACHED:
-                return Executors.newCachedThreadPool(
-                        new UtilsThreadFactory("cached", priority)
-                );
-            case TYPE_IO:
-                return new ThreadPoolExecutor(2 * CPU_COUNT + 1,
-                        2 * CPU_COUNT + 1,
-                        30, TimeUnit.SECONDS,
-                        new LinkedBlockingQueue<Runnable>(128),
-                        new UtilsThreadFactory("io", priority)
-                );
-            case TYPE_CPU:
-                return new ThreadPoolExecutor(CPU_COUNT + 1,
-                        2 * CPU_COUNT + 1,
-                        30, TimeUnit.SECONDS,
-                        new LinkedBlockingQueue<Runnable>(128),
-                        new UtilsThreadFactory("cpu", priority)
-                );
-            default:
-                return Executors.newFixedThreadPool(
-                        type,
-                        new UtilsThreadFactory("fixed(" + type + ")", priority)
-                );
-        }
-    }
-
-    private static void shutdownAndAwaitTermination(final ExecutorService pool) {
-        pool.shutdown();
-        try {
-            if (!pool.awaitTermination(60, TimeUnit.SECONDS)) {
-                pool.shutdownNow();
-                if (!pool.awaitTermination(60, TimeUnit.SECONDS)) {
-                    System.err.println("Pool did not terminate");
-                }
-            }
-        } catch (InterruptedException e) {
-            pool.shutdownNow();
-            Thread.currentThread().interrupt();
-            e.printStackTrace();
-        }
-    }
-
-    public abstract static class SimpleTask<T> extends Task<T> {
-
-        @Override
-        public void onCancel() {
-            Log.e("ThreadUtils", "onCancel: " + Thread.currentThread());
-        }
-
-        @Override
-        public void onFail(Throwable t) {
-            Log.e("ThreadUtils", "onFail: ", t);
-        }
-
-    }
-
-    public abstract static class Task<T> implements Runnable {
-
-        private boolean isSchedule;
-
-        private volatile     int state;
-        private static final int NEW         = 0;
-        private static final int COMPLETING  = 1;
-        private static final int CANCELLED   = 2;
-        private static final int EXCEPTIONAL = 3;
-
-        public Task() {
-            state = NEW;
-        }
-
-        @Nullable
-        public abstract T doInBackground() throws Throwable;
-
-        public abstract void onSuccess(@Nullable T result);
-
-        public abstract void onCancel();
-
-        public abstract void onFail(Throwable t);
-
-
-        @Override
-        public void run() {
-            try {
-                final T result = doInBackground();
-                if (state != NEW) return;
-
-                if (isSchedule) {
-                    Deliver.post(new Runnable() {
-                        @Override
-                        public void run() {
-                            onSuccess(result);
-                        }
-                    });
-                } else {
-                    state = COMPLETING;
-                    Deliver.post(new Runnable() {
-                        @Override
-                        public void run() {
-                            onSuccess(result);
-                            removeScheduleByTask(Task.this);
-                        }
-                    });
-                }
-            } catch (final Throwable throwable) {
-                if (state != NEW) return;
-
-                state = EXCEPTIONAL;
-                Deliver.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        onFail(throwable);
-                        removeScheduleByTask(Task.this);
-                    }
-                });
-            }
-        }
-
-        public void cancel() {
-            if (state != NEW) return;
-
-            state = CANCELLED;
-            Deliver.post(new Runnable() {
-                @Override
-                public void run() {
-                    onCancel();
-                    removeScheduleByTask(Task.this);
-                }
-            });
-        }
-    }
-
-    private static final class UtilsThreadFactory extends AtomicLong
-            implements ThreadFactory {
-        private static final AtomicInteger POOL_NUMBER = new AtomicInteger(1);
-        private final        ThreadGroup   group;
-        private final        String        namePrefix;
-        private final        int           priority;
-
-        UtilsThreadFactory(String prefix, int priority) {
-            SecurityManager s = System.getSecurityManager();
-            group = s != null ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
-            namePrefix = prefix + "-pool-" +
-                    POOL_NUMBER.getAndIncrement() +
-                    "-thread-";
-            this.priority = priority;
-        }
-
-        public Thread newThread(@NonNull Runnable r) {
-            Thread t = new Thread(group, r, namePrefix + getAndIncrement(), 0) {
-                @Override
-                public void run() {
-                    try {
-                        super.run();
-                    } catch (Throwable t) {
-                        Log.e("ThreadUtils", "Request threw uncaught throwable", t);
-                    }
-                }
-            };
-            if (t.isDaemon()) {
-                t.setDaemon(false);
-            }
-            t.setPriority(priority);
-            return t;
-        }
-    }
-
-    private static class Deliver {
-
-        private static final Handler MAIN_HANDLER;
-
-        static {
-            Looper looper;
-            try {
-                looper = Looper.getMainLooper();
-            } catch (Exception e) {
-                looper = null;
-            }
-            if (looper != null) {
-                MAIN_HANDLER = new Handler(looper);
-            } else {
-                MAIN_HANDLER = null;
-            }
-        }
-
-        static void post(final Runnable runnable) {
-            if (MAIN_HANDLER != null) {
-                MAIN_HANDLER.post(runnable);
-            } else {
-                runnable.run();
-            }
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ToastUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ToastUtils.java
deleted file mode 100644
index 07833faed4..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ToastUtils.java
+++ /dev/null
@@ -1,584 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.content.Context;
-import android.content.res.Configuration;
-import android.graphics.Color;
-import android.graphics.PixelFormat;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffColorFilter;
-import android.graphics.drawable.ColorDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.Message;
-import android.support.annotation.ColorInt;
-import android.support.annotation.DrawableRes;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.annotation.StringRes;
-import android.support.v4.app.NotificationManagerCompat;
-import android.view.Gravity;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.WindowManager;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import java.lang.reflect.Field;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/09/29
- *     desc  : utils about sToast
- * </pre>
- */
-public final class ToastUtils {
-
-    private static final int     COLOR_DEFAULT = 0xFEFFFFFF;
-    private static final Handler HANDLER       = new Handler(Looper.getMainLooper());
-    private static final String  NULL          = "null";
-
-    private static IToast sToast;
-    private static int    sGravity     = -1;
-    private static int    sXOffset     = -1;
-    private static int    sYOffset     = -1;
-    private static int    sBgColor     = COLOR_DEFAULT;
-    private static int    sBgResource  = -1;
-    private static int    sMsgColor    = COLOR_DEFAULT;
-    private static int    sMsgTextSize = -1;
-
-    private ToastUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Set the gravity.
-     *
-     * @param gravity The gravity.
-     * @param xOffset X-axis offset, in pixel.
-     * @param yOffset Y-axis offset, in pixel.
-     */
-    public static void setGravity(final int gravity, final int xOffset, final int yOffset) {
-        sGravity = gravity;
-        sXOffset = xOffset;
-        sYOffset = yOffset;
-    }
-
-    /**
-     * Set the color of background.
-     *
-     * @param backgroundColor The color of background.
-     */
-    public static void setBgColor(@ColorInt final int backgroundColor) {
-        sBgColor = backgroundColor;
-    }
-
-    /**
-     * Set the resource of background.
-     *
-     * @param bgResource The resource of background.
-     */
-    public static void setBgResource(@DrawableRes final int bgResource) {
-        sBgResource = bgResource;
-    }
-
-    /**
-     * Set the color of message.
-     *
-     * @param msgColor The color of message.
-     */
-    public static void setMsgColor(@ColorInt final int msgColor) {
-        sMsgColor = msgColor;
-    }
-
-    /**
-     * Set the text size of message.
-     *
-     * @param textSize The text size of message.
-     */
-    public static void setMsgTextSize(final int textSize) {
-        sMsgTextSize = textSize;
-    }
-
-    /**
-     * Show the sToast for a short period of time.
-     *
-     * @param text The text.
-     */
-    public static void showShort(final CharSequence text) {
-        show(text == null ? NULL : text, Toast.LENGTH_SHORT);
-    }
-
-    /**
-     * Show the sToast for a short period of time.
-     *
-     * @param resId The resource id for text.
-     */
-    public static void showShort(@StringRes final int resId) {
-        show(resId, Toast.LENGTH_SHORT);
-    }
-
-    /**
-     * Show the sToast for a short period of time.
-     *
-     * @param resId The resource id for text.
-     * @param args  The args.
-     */
-    public static void showShort(@StringRes final int resId, final Object... args) {
-        show(resId, Toast.LENGTH_SHORT, args);
-    }
-
-    /**
-     * Show the sToast for a short period of time.
-     *
-     * @param format The format.
-     * @param args   The args.
-     */
-    public static void showShort(final String format, final Object... args) {
-        show(format, Toast.LENGTH_SHORT, args);
-    }
-
-    /**
-     * Show the sToast for a long period of time.
-     *
-     * @param text The text.
-     */
-    public static void showLong(final CharSequence text) {
-        show(text == null ? NULL : text, Toast.LENGTH_LONG);
-    }
-
-    /**
-     * Show the sToast for a long period of time.
-     *
-     * @param resId The resource id for text.
-     */
-    public static void showLong(@StringRes final int resId) {
-        show(resId, Toast.LENGTH_LONG);
-    }
-
-    /**
-     * Show the sToast for a long period of time.
-     *
-     * @param resId The resource id for text.
-     * @param args  The args.
-     */
-    public static void showLong(@StringRes final int resId, final Object... args) {
-        show(resId, Toast.LENGTH_LONG, args);
-    }
-
-    /**
-     * Show the sToast for a long period of time.
-     *
-     * @param format The format.
-     * @param args   The args.
-     */
-    public static void showLong(final String format, final Object... args) {
-        show(format, Toast.LENGTH_LONG, args);
-    }
-
-    /**
-     * Show custom sToast for a short period of time.
-     *
-     * @param layoutId ID for an XML layout resource to load.
-     */
-    public static View showCustomShort(@LayoutRes final int layoutId) {
-        final View view = getView(layoutId);
-        show(view, Toast.LENGTH_SHORT);
-        return view;
-    }
-
-    /**
-     * Show custom sToast for a long period of time.
-     *
-     * @param layoutId ID for an XML layout resource to load.
-     */
-    public static View showCustomLong(@LayoutRes final int layoutId) {
-        final View view = getView(layoutId);
-        show(view, Toast.LENGTH_LONG);
-        return view;
-    }
-
-    /**
-     * Cancel the sToast.
-     */
-    public static void cancel() {
-        if (sToast != null) {
-            sToast.cancel();
-        }
-    }
-
-    private static void show(final int resId, final int duration) {
-        try {
-            CharSequence text = Utils.getApp().getResources().getText(resId);
-            show(text, duration);
-        } catch (Exception ignore) {
-            show(String.valueOf(resId), duration);
-        }
-    }
-
-    private static void show(final int resId, final int duration, final Object... args) {
-        try {
-            CharSequence text = Utils.getApp().getResources().getText(resId);
-            String format = String.format(text.toString(), args);
-            show(format, duration);
-        } catch (Exception ignore) {
-            show(String.valueOf(resId), duration);
-        }
-    }
-
-    private static void show(final String format, final int duration, final Object... args) {
-        String text;
-        if (format == null) {
-            text = NULL;
-        } else {
-            text = String.format(format, args);
-            if (text == null) {
-                text = NULL;
-            }
-        }
-        show(text, duration);
-    }
-
-    private static void show(final CharSequence text, final int duration) {
-        HANDLER.post(new Runnable() {
-            @SuppressLint("ShowToast")
-            @Override
-            public void run() {
-                cancel();
-                sToast = ToastFactory.makeToast(Utils.getApp(), text, duration);
-                final TextView tvMessage = sToast.getView().findViewById(android.R.id.message);
-                if (sMsgColor != COLOR_DEFAULT) {
-                    tvMessage.setTextColor(sMsgColor);
-                }
-                if (sMsgTextSize != -1) {
-                    tvMessage.setTextSize(sMsgTextSize);
-                }
-                if (sGravity != -1 || sXOffset != -1 || sYOffset != -1) {
-                    sToast.setGravity(sGravity, sXOffset, sYOffset);
-                }
-                setBg(tvMessage);
-                sToast.show();
-            }
-        });
-    }
-
-    private static void show(final View view, final int duration) {
-        HANDLER.post(new Runnable() {
-            @Override
-            public void run() {
-                cancel();
-                sToast = ToastFactory.newToast(Utils.getApp());
-                sToast.setView(view);
-                sToast.setDuration(duration);
-                if (sGravity != -1 || sXOffset != -1 || sYOffset != -1) {
-                    sToast.setGravity(sGravity, sXOffset, sYOffset);
-                }
-                setBg();
-                sToast.show();
-            }
-        });
-    }
-
-    private static void setBg() {
-        if (sBgResource != -1) {
-            final View toastView = sToast.getView();
-            toastView.setBackgroundResource(sBgResource);
-        } else if (sBgColor != COLOR_DEFAULT) {
-            final View toastView = sToast.getView();
-            Drawable background = toastView.getBackground();
-            if (background != null) {
-                background.setColorFilter(
-                        new PorterDuffColorFilter(sBgColor, PorterDuff.Mode.SRC_IN)
-                );
-            } else {
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-                    toastView.setBackground(new ColorDrawable(sBgColor));
-                } else {
-                    toastView.setBackgroundDrawable(new ColorDrawable(sBgColor));
-                }
-            }
-        }
-    }
-
-    private static void setBg(final TextView tvMsg) {
-        if (sBgResource != -1) {
-            final View toastView = sToast.getView();
-            toastView.setBackgroundResource(sBgResource);
-            tvMsg.setBackgroundColor(Color.TRANSPARENT);
-        } else if (sBgColor != COLOR_DEFAULT) {
-            final View toastView = sToast.getView();
-            Drawable tvBg = toastView.getBackground();
-            Drawable msgBg = tvMsg.getBackground();
-            if (tvBg != null && msgBg != null) {
-                tvBg.setColorFilter(new PorterDuffColorFilter(sBgColor, PorterDuff.Mode.SRC_IN));
-                tvMsg.setBackgroundColor(Color.TRANSPARENT);
-            } else if (tvBg != null) {
-                tvBg.setColorFilter(new PorterDuffColorFilter(sBgColor, PorterDuff.Mode.SRC_IN));
-            } else if (msgBg != null) {
-                msgBg.setColorFilter(new PorterDuffColorFilter(sBgColor, PorterDuff.Mode.SRC_IN));
-            } else {
-                toastView.setBackgroundColor(sBgColor);
-            }
-        }
-    }
-
-    private static View getView(@LayoutRes final int layoutId) {
-        LayoutInflater inflate =
-                (LayoutInflater) Utils.getApp().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-        //noinspection ConstantConditions
-        return inflate.inflate(layoutId, null);
-    }
-
-    static class ToastFactory {
-
-        static IToast makeToast(Context context, CharSequence text, int duration) {
-            if (NotificationManagerCompat.from(context).areNotificationsEnabled()) {
-                return new SystemToast(makeNormalToast(context, text, duration));
-            }
-
-            return new ToastWithoutNotification(makeNormalToast(context, text, duration));
-//            Log.e("ToastUtils", "Toast is GG. In fact, next step is useless.");
-//            return new SystemToast(makeNormalToast(context, text, duration));
-        }
-
-        static IToast newToast(Context context) {
-            if (NotificationManagerCompat.from(context).areNotificationsEnabled()) {
-                return new SystemToast(new Toast(context));
-            }
-//            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
-            return new ToastWithoutNotification(new Toast(context));
-//            }
-//            Log.e("ToastUtils", "Toast is GG. In fact, next step is useless.");
-//            return new SystemToast(new Toast(context));
-        }
-
-        private static Toast makeNormalToast(Context context, CharSequence text, int duration) {
-            @SuppressLint("ShowToast")
-            Toast toast = Toast.makeText(context, "", duration);
-            toast.setText(text);
-            return toast;
-        }
-    }
-
-    static class SystemToast implements IToast {
-
-        Toast mToast;
-
-        private static Field sField_mTN;
-        private static Field sField_TN_Handler;
-
-        SystemToast(@NonNull Toast toast) {
-            mToast = toast;
-            if (Build.VERSION.SDK_INT == Build.VERSION_CODES.N_MR1) {
-                try {
-                    //noinspection JavaReflectionMemberAccess
-                    sField_mTN = Toast.class.getDeclaredField("mTN");
-                    sField_mTN.setAccessible(true);
-                    Object mTN = sField_mTN.get(toast);
-                    sField_TN_Handler = sField_mTN.getType().getDeclaredField("mHandler");
-                    sField_TN_Handler.setAccessible(true);
-                    Handler tnHandler = (Handler) sField_TN_Handler.get(mTN);
-                    sField_TN_Handler.set(mTN, new SafeHandler(tnHandler));
-                } catch (Exception ignored) { /**/ }
-            }
-        }
-
-        @Override
-        public void show() {
-            mToast.show();
-        }
-
-        @Override
-        public void cancel() {
-            mToast.cancel();
-        }
-
-        @Override
-        public void setView(View view) {
-            mToast.setView(view);
-        }
-
-        @Override
-        public View getView() {
-            return mToast.getView();
-        }
-
-        @Override
-        public void setDuration(int duration) {
-            mToast.setDuration(duration);
-        }
-
-        @Override
-        public void setGravity(int gravity, int xOffset, int yOffset) {
-            mToast.setGravity(gravity, xOffset, yOffset);
-        }
-
-        @Override
-        public void setText(int resId) {
-            mToast.setText(resId);
-        }
-
-        @Override
-        public void setText(CharSequence s) {
-            mToast.setText(s);
-        }
-
-        static class SafeHandler extends Handler {
-            private Handler impl;
-
-            SafeHandler(Handler impl) {
-                this.impl = impl;
-            }
-
-            @Override
-            public void handleMessage(Message msg) {
-                try {
-                    impl.handleMessage(msg);
-                } catch (Exception e) {
-                    LogUtils.e(e);
-                }
-            }
-
-            @Override
-            public void dispatchMessage(Message msg) {
-                impl.dispatchMessage(msg);
-            }
-        }
-    }
-
-    static class ToastWithoutNotification implements IToast {
-
-        private Toast mToast;
-
-        private WindowManager mWM;
-
-        private View mView;
-
-        private WindowManager.LayoutParams mParams = new WindowManager.LayoutParams();
-
-        private Handler mHandler = new Handler(Looper.myLooper());
-
-        ToastWithoutNotification(@NonNull Toast toast) {
-            mToast = toast;
-
-            mParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
-            mParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
-            mParams.format = PixelFormat.TRANSLUCENT;
-            mParams.windowAnimations = android.R.style.Animation_Toast;
-            mParams.type = WindowManager.LayoutParams.TYPE_TOAST;
-            mParams.setTitle("ToastWithoutNotification");
-            mParams.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
-                    | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
-                    | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
-        }
-
-        @Override
-        public void show() {
-            mView = mToast.getView();
-            if (mView == null) return;
-            Context context = mToast.getView().getContext();
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
-                mWM = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
-            } else {
-                Context topActivityOrApp = Utils.getTopActivityOrApp();
-                if (topActivityOrApp instanceof Activity) {
-                    mWM = ((Activity) topActivityOrApp).getWindowManager();
-                }
-            }
-
-            final Configuration config = context.getResources().getConfiguration();
-            final int gravity;
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-                gravity = Gravity.getAbsoluteGravity(mToast.getGravity(), config.getLayoutDirection());
-            } else {
-                gravity = mToast.getGravity();
-            }
-            mParams.gravity = gravity;
-            if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL) {
-                mParams.horizontalWeight = 1.0f;
-            }
-            if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.FILL_VERTICAL) {
-                mParams.verticalWeight = 1.0f;
-            }
-            mParams.x = mToast.getXOffset();
-            mParams.y = mToast.getYOffset();
-
-            mParams.packageName = Utils.getApp().getPackageName();
-
-            try {
-                mWM.addView(mView, mParams);
-            } catch (Exception ignored) { /**/ }
-
-            mHandler.postDelayed(new Runnable() {
-                @Override
-                public void run() {
-                    cancel();
-                }
-            }, mToast.getDuration() == Toast.LENGTH_SHORT ? 2000 : 3500);
-        }
-
-        @Override
-        public void cancel() {
-            try {
-                mWM.removeView(mView);
-            } catch (IllegalArgumentException ignored) { /**/ }
-            mView = null;
-            mHandler = null;
-            mToast = null;
-        }
-
-        @Override
-        public void setView(View view) {
-            mToast.setView(view);
-        }
-
-        @Override
-        public View getView() {
-            return mToast.getView();
-        }
-
-        @Override
-        public void setDuration(int duration) {
-            mToast.setDuration(duration);
-        }
-
-        @Override
-        public void setGravity(int gravity, int xOffset, int yOffset) {
-            mToast.setGravity(gravity, xOffset, yOffset);
-        }
-
-        @Override
-        public void setText(int resId) {
-            mToast.setText(resId);
-        }
-
-        @Override
-        public void setText(CharSequence s) {
-            mToast.setText(s);
-        }
-    }
-
-    interface IToast {
-
-        void show();
-
-        void cancel();
-
-        void setView(View view);
-
-        View getView();
-
-        void setDuration(int duration);
-
-        void setGravity(int gravity, int xOffset, int yOffset);
-
-        void setText(@StringRes int resId);
-
-        void setText(CharSequence s);
-    }
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/UriUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/UriUtils.java
deleted file mode 100644
index ad9d78e2da..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/UriUtils.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.content.ContentResolver;
-import android.content.CursorLoader;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.Build;
-import android.provider.MediaStore;
-import android.support.annotation.NonNull;
-import android.support.v4.content.FileProvider;
-
-import java.io.File;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/04/20
- *     desc  : URI 相关
- * </pre>
- */
-public final class UriUtils {
-
-    private UriUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * File to uri.
-     *
-     * @param file The file.
-     * @return uri
-     */
-    public static Uri file2Uri(@NonNull final File file) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-            String authority = Utils.getApp().getPackageName() + ".utilcode.provider";
-            return FileProvider.getUriForFile(Utils.getApp(), authority, file);
-        } else {
-            return Uri.fromFile(file);
-        }
-    }
-
-    /**
-     * Uri to file.
-     *
-     * @param uri        The uri.
-     * @param columnName The name of the target column.
-     *                   <p>e.g. {@link MediaStore.Images.Media#DATA}</p>
-     * @return file
-     */
-    public static File uri2File(@NonNull final Uri uri, final String columnName) {
-        if (ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
-            return new File(uri.getPath());
-        }
-        CursorLoader cl = new CursorLoader(Utils.getApp());
-        cl.setUri(uri);
-        cl.setProjection(new String[]{columnName});
-        Cursor cursor = null;
-        try {
-            cursor = cl.loadInBackground();
-            int columnIndex = cursor.getColumnIndexOrThrow(columnName);
-            cursor.moveToFirst();
-            return new File(cursor.getString(columnIndex));
-        } finally {
-            if (cursor != null) {
-                cursor.close();
-            }
-        }
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java
deleted file mode 100644
index feeecde67c..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/Utils.java
+++ /dev/null
@@ -1,308 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.ActivityManager;
-import android.app.Application;
-import android.app.Application.ActivityLifecycleCallbacks;
-import android.content.Context;
-import android.os.Bundle;
-import android.support.v4.content.FileProvider;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-/**
- * <pre>
- *     author:
- *                                      ___           ___           ___         ___
- *         _____                       /  /\         /__/\         /__/|       /  /\
- *        /  /::\                     /  /::\        \  \:\       |  |:|      /  /:/
- *       /  /:/\:\    ___     ___    /  /:/\:\        \  \:\      |  |:|     /__/::\
- *      /  /:/~/::\  /__/\   /  /\  /  /:/~/::\   _____\__\:\   __|  |:|     \__\/\:\
- *     /__/:/ /:/\:| \  \:\ /  /:/ /__/:/ /:/\:\ /__/::::::::\ /__/\_|:|____    \  \:\
- *     \  \:\/:/~/:/  \  \:\  /:/  \  \:\/:/__\/ \  \:\~~\~~\/ \  \:\/:::::/     \__\:\
- *      \  \::/ /:/    \  \:\/:/    \  \::/       \  \:\  ~~~   \  \::/~~~~      /  /:/
- *       \  \:\/:/      \  \::/      \  \:\        \  \:\        \  \:\         /__/:/
- *        \  \::/        \__\/        \  \:\        \  \:\        \  \:\        \__\/
- *         \__\/                       \__\/         \__\/         \__\/
- *     blog  : http://blankj.com
- *     time  : 16/12/08
- *     desc  : utils about initialization
- * </pre>
- */
-public final class Utils {
-
-    @SuppressLint("StaticFieldLeak")
-    private static Application sApplication;
-
-    private static final ActivityLifecycleImpl ACTIVITY_LIFECYCLE = new ActivityLifecycleImpl();
-
-    private final static String PERMISSION_ACTIVITY_CLASS_NAME =
-            "com.blankj.utilcode.util.PermissionUtils$PermissionActivity";
-
-    private Utils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Init utils.
-     * <p>Init it in the class of Application.</p>
-     *
-     * @param context context
-     */
-    public static void init(final Context context) {
-        if (context == null) {
-            init(getApplicationByReflect());
-            return;
-        }
-        init((Application) context.getApplicationContext());
-    }
-
-    /**
-     * Init utils.
-     * <p>Init it in the class of Application.</p>
-     *
-     * @param app application
-     */
-    public static void init(final Application app) {
-        if (sApplication == null) {
-            if (app == null) {
-                sApplication = getApplicationByReflect();
-            } else {
-                sApplication = app;
-            }
-            sApplication.registerActivityLifecycleCallbacks(ACTIVITY_LIFECYCLE);
-        } else {
-            if (app != null && app.getClass() != sApplication.getClass()) {
-                sApplication.unregisterActivityLifecycleCallbacks(ACTIVITY_LIFECYCLE);
-                ACTIVITY_LIFECYCLE.mActivityList.clear();
-                sApplication = app;
-                sApplication.registerActivityLifecycleCallbacks(ACTIVITY_LIFECYCLE);
-            }
-        }
-    }
-
-    /**
-     * Return the context of Application object.
-     *
-     * @return the context of Application object
-     */
-    public static Application getApp() {
-        if (sApplication != null) return sApplication;
-        Application app = getApplicationByReflect();
-        init(app);
-        return app;
-    }
-
-    private static Application getApplicationByReflect() {
-        try {
-            @SuppressLint("PrivateApi")
-            Class<?> activityThread = Class.forName("android.app.ActivityThread");
-            Object thread = activityThread.getMethod("currentActivityThread").invoke(null);
-            Object app = activityThread.getMethod("getApplication").invoke(thread);
-            if (app == null) {
-                throw new NullPointerException("u should init first");
-            }
-            return (Application) app;
-        } catch (NoSuchMethodException e) {
-            e.printStackTrace();
-        } catch (IllegalAccessException e) {
-            e.printStackTrace();
-        } catch (InvocationTargetException e) {
-            e.printStackTrace();
-        } catch (ClassNotFoundException e) {
-            e.printStackTrace();
-        }
-        throw new NullPointerException("u should init first");
-    }
-
-    static ActivityLifecycleImpl getActivityLifecycle() {
-        return ACTIVITY_LIFECYCLE;
-    }
-
-    static LinkedList<Activity> getActivityList() {
-        return ACTIVITY_LIFECYCLE.mActivityList;
-    }
-
-    static Context getTopActivityOrApp() {
-        if (isAppForeground()) {
-            Activity topActivity = ACTIVITY_LIFECYCLE.getTopActivity();
-            return topActivity == null ? Utils.getApp() : topActivity;
-        } else {
-            return Utils.getApp();
-        }
-    }
-
-    static boolean isAppForeground() {
-        ActivityManager am =
-                (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
-        //noinspection ConstantConditions
-        List<ActivityManager.RunningAppProcessInfo> info = am.getRunningAppProcesses();
-        if (info == null || info.size() == 0) return false;
-        for (ActivityManager.RunningAppProcessInfo aInfo : info) {
-            if (aInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
-                return aInfo.processName.equals(Utils.getApp().getPackageName());
-            }
-        }
-        return false;
-    }
-
-    static class ActivityLifecycleImpl implements ActivityLifecycleCallbacks {
-
-        final LinkedList<Activity>                        mActivityList      = new LinkedList<>();
-        final HashMap<Object, OnAppStatusChangedListener> mStatusListenerMap = new HashMap<>();
-
-        private int mForegroundCount = 0;
-        private int mConfigCount     = 0;
-
-        void addListener(final Object object, final OnAppStatusChangedListener listener) {
-            mStatusListenerMap.put(object, listener);
-        }
-
-        void removeListener(final Object object) {
-            mStatusListenerMap.remove(object);
-        }
-
-        @Override
-        public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
-            setTopActivity(activity);
-        }
-
-        @Override
-        public void onActivityStarted(Activity activity) {
-            setTopActivity(activity);
-            if (mForegroundCount <= 0) {
-                postStatus(true);
-            }
-            if (mConfigCount < 0) {
-                ++mConfigCount;
-            } else {
-                ++mForegroundCount;
-            }
-        }
-
-        @Override
-        public void onActivityResumed(Activity activity) {
-            setTopActivity(activity);
-        }
-
-        @Override
-        public void onActivityPaused(Activity activity) {/**/}
-
-        @Override
-        public void onActivityStopped(Activity activity) {
-            if (activity.isChangingConfigurations()) {
-                --mConfigCount;
-            } else {
-                --mForegroundCount;
-                if (mForegroundCount <= 0) {
-                    postStatus(false);
-                }
-            }
-        }
-
-        @Override
-        public void onActivitySaveInstanceState(Activity activity, Bundle outState) {/**/}
-
-        @Override
-        public void onActivityDestroyed(Activity activity) {
-            mActivityList.remove(activity);
-        }
-
-        private void postStatus(final boolean isForeground) {
-            if (mStatusListenerMap.isEmpty()) return;
-            for (OnAppStatusChangedListener onAppStatusChangedListener : mStatusListenerMap.values()) {
-                if (onAppStatusChangedListener == null) return;
-                if (isForeground) {
-                    onAppStatusChangedListener.onForeground();
-                } else {
-                    onAppStatusChangedListener.onBackground();
-                }
-            }
-        }
-
-        private void setTopActivity(final Activity activity) {
-            if (PERMISSION_ACTIVITY_CLASS_NAME.equals(activity.getClass().getName())) return;
-            if (mActivityList.contains(activity)) {
-                if (!mActivityList.getLast().equals(activity)) {
-                    mActivityList.remove(activity);
-                    mActivityList.addLast(activity);
-                }
-            } else {
-                mActivityList.addLast(activity);
-            }
-        }
-
-        Activity getTopActivity() {
-            if (!mActivityList.isEmpty()) {
-                final Activity topActivity = mActivityList.getLast();
-                if (topActivity != null) {
-                    return topActivity;
-                }
-            }
-            Activity topActivityByReflect = getTopActivityByReflect();
-            if (topActivityByReflect != null) {
-                setTopActivity(topActivityByReflect);
-            }
-            return topActivityByReflect;
-        }
-
-        private Activity getTopActivityByReflect() {
-            try {
-                @SuppressLint("PrivateApi")
-                Class<?> activityThreadClass = Class.forName("android.app.ActivityThread");
-                Object activityThread = activityThreadClass.getMethod("currentActivityThread").invoke(null);
-                Field activitiesField = activityThreadClass.getDeclaredField("mActivityList");
-                activitiesField.setAccessible(true);
-                Map activities = (Map) activitiesField.get(activityThread);
-                if (activities == null) return null;
-                for (Object activityRecord : activities.values()) {
-                    Class activityRecordClass = activityRecord.getClass();
-                    Field pausedField = activityRecordClass.getDeclaredField("paused");
-                    pausedField.setAccessible(true);
-                    if (!pausedField.getBoolean(activityRecord)) {
-                        Field activityField = activityRecordClass.getDeclaredField("activity");
-                        activityField.setAccessible(true);
-                        return (Activity) activityField.get(activityRecord);
-                    }
-                }
-            } catch (ClassNotFoundException e) {
-                e.printStackTrace();
-            } catch (IllegalAccessException e) {
-                e.printStackTrace();
-            } catch (InvocationTargetException e) {
-                e.printStackTrace();
-            } catch (NoSuchMethodException e) {
-                e.printStackTrace();
-            } catch (NoSuchFieldException e) {
-                e.printStackTrace();
-            }
-            return null;
-        }
-    }
-
-
-    public static final class FileProvider4UtilCode extends FileProvider {
-
-        @Override
-        public boolean onCreate() {
-            Utils.init(getContext());
-            return true;
-        }
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    // interface
-    ///////////////////////////////////////////////////////////////////////////
-
-    public interface OnAppStatusChangedListener {
-        void onForeground();
-
-        void onBackground();
-    }
-}
diff --git a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ZipUtils.java b/utilcode/lib/src/main/java/com/blankj/utilcode/util/ZipUtils.java
deleted file mode 100644
index 0bfe715353..0000000000
--- a/utilcode/lib/src/main/java/com/blankj/utilcode/util/ZipUtils.java
+++ /dev/null
@@ -1,448 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.util.Log;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-import java.util.zip.ZipOutputStream;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/27
- *     desc  : utils about zip
- * </pre>
- */
-public final class ZipUtils {
-
-    private static final int BUFFER_LEN = 8192;
-
-    private ZipUtils() {
-        throw new UnsupportedOperationException("u can't instantiate me...");
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFiles    The source of files.
-     * @param zipFilePath The path of ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<String> srcFiles,
-                                   final String zipFilePath)
-            throws IOException {
-        return zipFiles(srcFiles, zipFilePath, null);
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFilePaths The paths of source files.
-     * @param zipFilePath  The path of ZIP file.
-     * @param comment      The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<String> srcFilePaths,
-                                   final String zipFilePath,
-                                   final String comment)
-            throws IOException {
-        if (srcFilePaths == null || zipFilePath == null) return false;
-        ZipOutputStream zos = null;
-        try {
-            zos = new ZipOutputStream(new FileOutputStream(zipFilePath));
-            for (String srcFile : srcFilePaths) {
-                if (!zipFile(getFileByPath(srcFile), "", zos, comment)) return false;
-            }
-            return true;
-        } finally {
-            if (zos != null) {
-                zos.finish();
-                zos.close();
-            }
-        }
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFiles The source of files.
-     * @param zipFile  The ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<File> srcFiles, final File zipFile)
-            throws IOException {
-        return zipFiles(srcFiles, zipFile, null);
-    }
-
-    /**
-     * Zip the files.
-     *
-     * @param srcFiles The source of files.
-     * @param zipFile  The ZIP file.
-     * @param comment  The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFiles(final Collection<File> srcFiles,
-                                   final File zipFile,
-                                   final String comment)
-            throws IOException {
-        if (srcFiles == null || zipFile == null) return false;
-        ZipOutputStream zos = null;
-        try {
-            zos = new ZipOutputStream(new FileOutputStream(zipFile));
-            for (File srcFile : srcFiles) {
-                if (!zipFile(srcFile, "", zos, comment)) return false;
-            }
-            return true;
-        } finally {
-            if (zos != null) {
-                zos.finish();
-                zos.close();
-            }
-        }
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFilePath The path of source file.
-     * @param zipFilePath The path of ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final String srcFilePath,
-                                  final String zipFilePath)
-            throws IOException {
-        return zipFile(getFileByPath(srcFilePath), getFileByPath(zipFilePath), null);
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFilePath The path of source file.
-     * @param zipFilePath The path of ZIP file.
-     * @param comment     The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final String srcFilePath,
-                                  final String zipFilePath,
-                                  final String comment)
-            throws IOException {
-        return zipFile(getFileByPath(srcFilePath), getFileByPath(zipFilePath), comment);
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFile The source of file.
-     * @param zipFile The ZIP file.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final File srcFile,
-                                  final File zipFile)
-            throws IOException {
-        return zipFile(srcFile, zipFile, null);
-    }
-
-    /**
-     * Zip the file.
-     *
-     * @param srcFile The source of file.
-     * @param zipFile The ZIP file.
-     * @param comment The comment.
-     * @return {@code true}: success<br>{@code false}: fail
-     * @throws IOException if an I/O error has occurred
-     */
-    public static boolean zipFile(final File srcFile,
-                                  final File zipFile,
-                                  final String comment)
-            throws IOException {
-        if (srcFile == null || zipFile == null) return false;
-        ZipOutputStream zos = null;
-        try {
-            zos = new ZipOutputStream(new FileOutputStream(zipFile));
-            return zipFile(srcFile, "", zos, comment);
-        } finally {
-            if (zos != null) {
-                zos.close();
-            }
-        }
-    }
-
-    private static boolean zipFile(final File srcFile,
-                                   String rootPath,
-                                   final ZipOutputStream zos,
-                                   final String comment)
-            throws IOException {
-        rootPath = rootPath + (isSpace(rootPath) ? "" : File.separator) + srcFile.getName();
-        if (srcFile.isDirectory()) {
-            File[] fileList = srcFile.listFiles();
-            if (fileList == null || fileList.length <= 0) {
-                ZipEntry entry = new ZipEntry(rootPath + '/');
-                entry.setComment(comment);
-                zos.putNextEntry(entry);
-                zos.closeEntry();
-            } else {
-                for (File file : fileList) {
-                    if (!zipFile(file, rootPath, zos, comment)) return false;
-                }
-            }
-        } else {
-            InputStream is = null;
-            try {
-                is = new BufferedInputStream(new FileInputStream(srcFile));
-                ZipEntry entry = new ZipEntry(rootPath);
-                entry.setComment(comment);
-                zos.putNextEntry(entry);
-                byte buffer[] = new byte[BUFFER_LEN];
-                int len;
-                while ((len = is.read(buffer, 0, BUFFER_LEN)) != -1) {
-                    zos.write(buffer, 0, len);
-                }
-                zos.closeEntry();
-            } finally {
-                if (is != null) {
-                    is.close();
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Unzip the file.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @param destDirPath The path of destination directory.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFile(final String zipFilePath,
-                                       final String destDirPath)
-            throws IOException {
-        return unzipFileByKeyword(zipFilePath, destDirPath, null);
-    }
-
-    /**
-     * Unzip the file.
-     *
-     * @param zipFile The ZIP file.
-     * @param destDir The destination directory.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFile(final File zipFile,
-                                       final File destDir)
-            throws IOException {
-        return unzipFileByKeyword(zipFile, destDir, null);
-    }
-
-    /**
-     * Unzip the file by keyword.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @param destDirPath The path of destination directory.
-     * @param keyword     The keyboard.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFileByKeyword(final String zipFilePath,
-                                                final String destDirPath,
-                                                final String keyword)
-            throws IOException {
-        return unzipFileByKeyword(getFileByPath(zipFilePath), getFileByPath(destDirPath), keyword);
-    }
-
-    /**
-     * Unzip the file by keyword.
-     *
-     * @param zipFile The ZIP file.
-     * @param destDir The destination directory.
-     * @param keyword The keyboard.
-     * @return the unzipped files
-     * @throws IOException if unzip unsuccessfully
-     */
-    public static List<File> unzipFileByKeyword(final File zipFile,
-                                                final File destDir,
-                                                final String keyword)
-            throws IOException {
-        if (zipFile == null || destDir == null) return null;
-        List<File> files = new ArrayList<>();
-        ZipFile zip = new ZipFile(zipFile);
-        Enumeration<?> entries = zip.entries();
-        try {
-            if (isSpace(keyword)) {
-                while (entries.hasMoreElements()) {
-                    ZipEntry entry = ((ZipEntry) entries.nextElement());
-                    String entryName = entry.getName();
-                    if (entryName.contains("../")) {
-                        Log.e("ZipUtils", "it's dangerous!");
-                        return files;
-                    }
-                    if (!unzipChildFile(destDir, files, zip, entry)) return files;
-                }
-            } else {
-                while (entries.hasMoreElements()) {
-                    ZipEntry entry = ((ZipEntry) entries.nextElement());
-                    String entryName = entry.getName();
-                    if (entryName.contains("../")) {
-                        Log.e("ZipUtils", "it's dangerous!");
-                        return files;
-                    }
-                    if (entryName.contains(keyword)) {
-                        if (!unzipChildFile(destDir, files, zip, entry)) return files;
-                    }
-                }
-            }
-        } finally {
-            zip.close();
-        }
-        return files;
-    }
-
-    private static boolean unzipChildFile(final File destDir,
-                                          final List<File> files,
-                                          final ZipFile zip,
-                                          final ZipEntry entry) throws IOException {
-        File file = new File(destDir, entry.getName());
-        files.add(file);
-        if (entry.isDirectory()) {
-            return createOrExistsDir(file);
-        } else {
-            if (!createOrExistsFile(file)) return false;
-            InputStream in = null;
-            OutputStream out = null;
-            try {
-                in = new BufferedInputStream(zip.getInputStream(entry));
-                out = new BufferedOutputStream(new FileOutputStream(file));
-                byte buffer[] = new byte[BUFFER_LEN];
-                int len;
-                while ((len = in.read(buffer)) != -1) {
-                    out.write(buffer, 0, len);
-                }
-            } finally {
-                if (in != null) {
-                    in.close();
-                }
-                if (out != null) {
-                    out.close();
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Return the files' path in ZIP file.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @return the files' path in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getFilesPath(final String zipFilePath)
-            throws IOException {
-        return getFilesPath(getFileByPath(zipFilePath));
-    }
-
-    /**
-     * Return the files' path in ZIP file.
-     *
-     * @param zipFile The ZIP file.
-     * @return the files' path in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getFilesPath(final File zipFile)
-            throws IOException {
-        if (zipFile == null) return null;
-        List<String> paths = new ArrayList<>();
-        ZipFile zip = new ZipFile(zipFile);
-        Enumeration<?> entries = zip.entries();
-        while (entries.hasMoreElements()) {
-            paths.add(((ZipEntry) entries.nextElement()).getName());
-        }
-        zip.close();
-        return paths;
-    }
-
-    /**
-     * Return the files' comment in ZIP file.
-     *
-     * @param zipFilePath The path of ZIP file.
-     * @return the files' comment in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getComments(final String zipFilePath)
-            throws IOException {
-        return getComments(getFileByPath(zipFilePath));
-    }
-
-    /**
-     * Return the files' comment in ZIP file.
-     *
-     * @param zipFile The ZIP file.
-     * @return the files' comment in ZIP file
-     * @throws IOException if an I/O error has occurred
-     */
-    public static List<String> getComments(final File zipFile)
-            throws IOException {
-        if (zipFile == null) return null;
-        List<String> comments = new ArrayList<>();
-        ZipFile zip = new ZipFile(zipFile);
-        Enumeration<?> entries = zip.entries();
-        while (entries.hasMoreElements()) {
-            ZipEntry entry = ((ZipEntry) entries.nextElement());
-            comments.add(entry.getComment());
-        }
-        zip.close();
-        return comments;
-    }
-
-    private static boolean createOrExistsDir(final File file) {
-        return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
-    }
-
-    private static boolean createOrExistsFile(final File file) {
-        if (file == null) return false;
-        if (file.exists()) return file.isFile();
-        if (!createOrExistsDir(file.getParentFile())) return false;
-        try {
-            return file.createNewFile();
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    private static File getFileByPath(final String filePath) {
-        return isSpace(filePath) ? null : new File(filePath);
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
diff --git a/utilcode/lib/src/main/res/values-v21/styles.xml b/utilcode/lib/src/main/res/values-v21/styles.xml
deleted file mode 100644
index 29a6f330e7..0000000000
--- a/utilcode/lib/src/main/res/values-v21/styles.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <style name="ActivityTranslucent">
-        <item name="android:background">@android:color/transparent</item>
-        <item name="android:colorBackgroundCacheHint">@null</item>
-        <item name="android:windowActionBar">false</item>
-        <item name="android:windowNoTitle">true</item>
-        <item name="android:statusBarColor">@android:color/transparent</item>
-        <item name="android:backgroundDimEnabled">false</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-        <item name="android:windowContentOverlay">@null</item>
-        <item name="android:windowIsTranslucent">true</item>
-        <item name="android:windowAnimationStyle">@null</item>
-        <item name="android:windowDisablePreview">true</item>
-    </style>
-</resources>
\ No newline at end of file
diff --git a/utilcode/lib/src/main/res/xml/util_code_provider_paths.xml b/utilcode/lib/src/main/res/xml/util_code_provider_paths.xml
deleted file mode 100644
index 0c40bb34af..0000000000
--- a/utilcode/lib/src/main/res/xml/util_code_provider_paths.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<paths>
-    <root-path
-        name="root"
-        path="" />
-
-    <files-path
-        name="files_path"
-        path="." />
-
-    <cache-path
-        name="cache_path"
-        path="." />
-
-    <external-path
-        name="external_path"
-        path="." />
-
-    <external-files-path
-        name="external_files_path"
-        path="." />
-
-    <external-cache-path
-        name="external_cache_path"
-        path="." />
-</paths>
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/BaseTest.java b/utilcode/lib/src/test/java/com/blankj/utilcode/util/BaseTest.java
deleted file mode 100644
index c89d165fe5..0000000000
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/BaseTest.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.blankj.utilcode.util;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
-import org.robolectric.annotation.Config;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2018/08/03
- *     desc  :
- * </pre>
- */
-@RunWith(RobolectricTestRunner.class)
-@Config(manifest = Config.NONE)
-public class BaseTest {
-
-    public BaseTest() {
-        Utils.init(RuntimeEnvironment.application);
-    }
-
-    @Test
-    public void test() {
-    }
-}
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java b/utilcode/lib/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
deleted file mode 100644
index e1611271be..0000000000
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/EncodeUtilsTest.java
+++ /dev/null
@@ -1,80 +0,0 @@
-package com.blankj.utilcode.util;
-
-import org.junit.Test;
-
-import java.util.Arrays;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/12
- *     desc  : test EncodeUtils
- * </pre>
- */
-public class EncodeUtilsTest extends BaseTest {
-
-    @Test
-    public void urlEncode_urlDecode() {
-        String urlEncodeString = "%E5%93%88%E5%93%88%E5%93%88";
-        assertEquals(urlEncodeString, EncodeUtils.urlEncode("哈哈哈"));
-        assertEquals(urlEncodeString, EncodeUtils.urlEncode("哈哈哈", "UTF-8"));
-
-        assertEquals("哈哈哈", EncodeUtils.urlDecode(urlEncodeString));
-        assertEquals("哈哈哈", EncodeUtils.urlDecode(urlEncodeString, "UTF-8"));
-    }
-
-    @Test
-    public void base64Decode_base64Encode() {
-        assertTrue(
-                Arrays.equals(
-                        "blankj".getBytes(),
-                        EncodeUtils.base64Decode(EncodeUtils.base64Encode("blankj"))
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        "blankj".getBytes(),
-                        EncodeUtils.base64Decode(EncodeUtils.base64Encode2String("blankj".getBytes()))
-                )
-        );
-        assertEquals(
-                "Ymxhbmtq",
-                EncodeUtils.base64Encode2String("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        "Ymxhbmtq".getBytes(),
-                        EncodeUtils.base64Encode("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void htmlEncode_htmlDecode() {
-        String html = "<html>" +
-                "<head>" +
-                "<title>我的第一个 HTML 页面</title>" +
-                "</head>" +
-                "<body>" +
-                "<p>body 元素的内容会显示在浏览器中。</p>" +
-                "<p>title 元素的内容会显示在浏览器的标题栏中。</p>" +
-                "</body>" +
-                "</html>";
-        String encodeHtml = "&lt;html&gt;&lt;head&gt;&lt;title&gt;我的第一个 HTML 页面&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;p&gt;body 元素的内容会显示在浏览器中。&lt;/p&gt;&lt;p&gt;title 元素的内容会显示在浏览器的标题栏中。&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;";
-
-        assertEquals(encodeHtml, EncodeUtils.htmlEncode(html));
-
-        assertEquals(html, EncodeUtils.htmlDecode(encodeHtml).toString());
-    }
-
-    @Test
-    public void binEncode_binDecode() {
-        String test = "test";
-        String binary = EncodeUtils.binEncode(test);
-        assertEquals("test", EncodeUtils.binDecode(binary));
-    }
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java b/utilcode/lib/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
deleted file mode 100644
index 3882389121..0000000000
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/EncryptUtilsTest.java
+++ /dev/null
@@ -1,583 +0,0 @@
-package com.blankj.utilcode.util;
-
-import android.util.Base64;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-import java.io.File;
-import java.util.Arrays;
-
-import static com.blankj.utilcode.util.TestConfig.PATH_ENCRYPT;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/06
- *     desc  : test EncryptUtils
- * </pre>
- */
-public class EncryptUtilsTest extends BaseTest {
-    @Test
-    public void encryptMD2() {
-        String blankjMD2 = "15435017570D8A73449E25C4622E17A4";
-        Assert.assertEquals(
-                blankjMD2,
-                EncryptUtils.encryptMD2ToString("blankj")
-        );
-        assertEquals(
-                blankjMD2,
-                EncryptUtils.encryptMD2ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjMD2),
-                        EncryptUtils.encryptMD2("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptMD5() {
-        String blankjMD5 = "AAC25CD336E01C8655F4EC7875445A60";
-        assertEquals(
-                blankjMD5,
-                EncryptUtils.encryptMD5ToString("blankj")
-        );
-        assertEquals(
-                blankjMD5,
-                EncryptUtils.encryptMD5ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjMD5),
-                        EncryptUtils.encryptMD5("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptMD5File() {
-        String fileMd5 = "7f138a09169b250e9dcb378140907378";
-        assertEquals(
-                fileMd5.toUpperCase(),
-                EncryptUtils.encryptMD5File2String(new File(PATH_ENCRYPT + "MD5.txt"))
-        );
-    }
-
-    @Test
-    public void encryptSHA1() {
-        String blankjSHA1 = "C606ACCB1FEB669E19D080ADDDDBB8E6CDA5F43C";
-        assertEquals(
-                blankjSHA1,
-                EncryptUtils.encryptSHA1ToString("blankj")
-        );
-        assertEquals(
-                blankjSHA1,
-                EncryptUtils.encryptSHA1ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjSHA1),
-                        EncryptUtils.encryptSHA1("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptSHA224() {
-        String blankjSHA224 = "F4C5C0E8CF56CAC4D06DB6B523F67621859A9D79BDA4B2AC03097D5F";
-        assertEquals(
-                blankjSHA224,
-                EncryptUtils.encryptSHA224ToString("blankj")
-        );
-        assertEquals(
-                blankjSHA224,
-                EncryptUtils.encryptSHA224ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjSHA224),
-                        EncryptUtils.encryptSHA224("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptSHA256() {
-        String blankjSHA256 = "8BD80AE90DFBA112786367BEBDDEE60A638EF5B82682EDF8F3D3CA8E6BFEF648";
-        assertEquals(
-                blankjSHA256,
-                EncryptUtils.encryptSHA256ToString("blankj")
-        );
-        assertEquals(
-                blankjSHA256,
-                EncryptUtils.encryptSHA256ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjSHA256),
-                        EncryptUtils.encryptSHA256("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptSHA384() {
-        String blankjSHA384 = "BF831E5221FC108D6A72ACB888BA3EB0C030A5F01BA2F739856BE70681D86F992B85E0D461101C74BAEDA895BD422557";
-        assertEquals(
-                blankjSHA384,
-                EncryptUtils.encryptSHA384ToString("blankj")
-        );
-        assertEquals(
-                blankjSHA384,
-                EncryptUtils.encryptSHA384ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjSHA384),
-                        EncryptUtils.encryptSHA384("blankj".getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptSHA512() {
-        String blankjSHA512 = "D59D31067F614ED3586F85A31FEFDB7F33096316DA26EBE0FF440B241C8560D96650F100D78C512560C976949EFA89CB5D5589DCF68C7FAADE98F03BCFEC2B45";
-        assertEquals(
-                blankjSHA512,
-                EncryptUtils.encryptSHA512ToString("blankj")
-        );
-        assertEquals(
-                blankjSHA512,
-                EncryptUtils.encryptSHA512ToString("blankj".getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjSHA512),
-                        EncryptUtils.encryptSHA512("blankj".getBytes())
-                )
-        );
-    }
-
-    private String blankjHmacSHA512 =
-            "FC55AD54B95F55A8E32EA1BAD7748C157F80679F5561EC95A3EAD975316BA85363CB4AF6462D695F742F469EDC2D577272BE359A7F9E9C7018FDF4C921E1B3CF";
-    private String blankjHmackey    = "blankj";
-
-    @Test
-    public void encryptHmacMD5() {
-        String blankjHmacMD5 = "2BA3FDABEE222522044BEC0CE5D6B490";
-        assertEquals(
-                blankjHmacMD5,
-                EncryptUtils.encryptHmacMD5ToString("blankj", blankjHmackey)
-        );
-        assertEquals(
-                blankjHmacMD5,
-                EncryptUtils.encryptHmacMD5ToString("blankj".getBytes(), blankjHmackey.getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjHmacMD5),
-                        EncryptUtils.encryptHmacMD5("blankj".getBytes(), blankjHmackey.getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptHmacSHA1() {
-        String blankjHmacSHA1 = "88E83EFD915496860C83739BE2CF4752B2AC105F";
-        assertEquals(
-                blankjHmacSHA1,
-                EncryptUtils.encryptHmacSHA1ToString("blankj", blankjHmackey)
-        );
-        assertEquals(
-                blankjHmacSHA1,
-                EncryptUtils.encryptHmacSHA1ToString("blankj".getBytes(), blankjHmackey.getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjHmacSHA1),
-                        EncryptUtils.encryptHmacSHA1("blankj".getBytes(), blankjHmackey.getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptHmacSHA224() {
-        String blankjHmacSHA224 = "E392D83D1030323FB2E062E8165A3AD38366E53DF19EA3290961E153";
-        assertEquals(
-                blankjHmacSHA224,
-                EncryptUtils.encryptHmacSHA224ToString("blankj", blankjHmackey)
-        );
-        assertEquals(
-                blankjHmacSHA224,
-                EncryptUtils.encryptHmacSHA224ToString("blankj".getBytes(), blankjHmackey.getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjHmacSHA224),
-                        EncryptUtils.encryptHmacSHA224("blankj".getBytes(), blankjHmackey.getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptHmacSHA256() {
-        String blankjHmacSHA256 = "A59675F13FC9A6E06D8DC90D4DC01DB9C991B0B95749D2471E588BF311DA2C67";
-        assertEquals(
-                blankjHmacSHA256,
-                EncryptUtils.encryptHmacSHA256ToString("blankj", blankjHmackey)
-        );
-        assertEquals(
-                blankjHmacSHA256,
-                EncryptUtils.encryptHmacSHA256ToString("blankj".getBytes(), blankjHmackey.getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjHmacSHA256),
-                        EncryptUtils.encryptHmacSHA256("blankj".getBytes(), blankjHmackey.getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptHmacSHA384() {
-        String blankjHmacSHA384 = "9FC2F49C7EDE698EA59645B3BEFBBE67DCC7D6623E03D4D03CDA1324F7B6445BC428AB42F6A962CF79AFAD1302C3223D";
-        assertEquals(
-                blankjHmacSHA384,
-                EncryptUtils.encryptHmacSHA384ToString("blankj", blankjHmackey)
-        );
-        assertEquals(
-                blankjHmacSHA384,
-                EncryptUtils.encryptHmacSHA384ToString("blankj".getBytes(), blankjHmackey.getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjHmacSHA384),
-                        EncryptUtils.encryptHmacSHA384("blankj".getBytes(), blankjHmackey.getBytes())
-                )
-        );
-    }
-
-    @Test
-    public void encryptHmacSHA512() {
-        assertEquals(
-                blankjHmacSHA512,
-                EncryptUtils.encryptHmacSHA512ToString("blankj", blankjHmackey)
-        );
-        assertEquals(
-                blankjHmacSHA512,
-                EncryptUtils.encryptHmacSHA512ToString("blankj".getBytes(), blankjHmackey.getBytes())
-        );
-        assertTrue(
-                Arrays.equals(
-                        hexString2Bytes(blankjHmacSHA512),
-                        EncryptUtils.encryptHmacSHA512("blankj".getBytes(), blankjHmackey.getBytes())
-                )
-        );
-    }
-
-
-    private String dataDES      = "0008DB3345AB0223";
-    private String keyDES       = "6801020304050607";
-    private String resDES       = "1F7962581118F360";
-    private byte[] bytesDataDES = hexString2Bytes(dataDES);
-    private byte[] bytesKeyDES  = hexString2Bytes(keyDES);
-    private byte[] bytesResDES  = hexString2Bytes(resDES);
-
-    @Test
-    public void encryptDES() {
-        assertTrue(
-                Arrays.equals(
-                        bytesResDES,
-                        EncryptUtils.encryptDES(
-                                bytesDataDES,
-                                bytesKeyDES,
-                                "DES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertEquals(
-                resDES,
-                EncryptUtils.encryptDES2HexString(
-                        bytesDataDES,
-                        bytesKeyDES,
-                        "DES/ECB/NoPadding",
-                        null
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        base64Encode(bytesResDES),
-                        EncryptUtils.encryptDES2Base64(
-                                bytesDataDES,
-                                bytesKeyDES,
-                                "DES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-    }
-
-    @Test
-    public void decryptDES() {
-        assertTrue(
-                Arrays.equals(
-                        bytesDataDES,
-                        EncryptUtils.decryptDES(
-                                bytesResDES,
-                                bytesKeyDES,
-                                "DES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        bytesDataDES,
-                        EncryptUtils.decryptHexStringDES(
-                                resDES,
-                                bytesKeyDES,
-                                "DES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        bytesDataDES,
-                        EncryptUtils.decryptBase64DES(
-                                base64Encode(bytesResDES),
-                                bytesKeyDES,
-                                "DES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-    }
-
-    private String data3DES      = "1111111111111111";
-    private String key3DES       = "111111111111111111111111111111111111111111111111";
-    private String res3DES       = "F40379AB9E0EC533";
-    private byte[] bytesDataDES3 = hexString2Bytes(data3DES);
-    private byte[] bytesKeyDES3  = hexString2Bytes(key3DES);
-    private byte[] bytesResDES3  = hexString2Bytes(res3DES);
-
-    @Test
-    public void encrypt3DES() {
-        assertTrue(
-                Arrays.equals(
-                        bytesResDES3,
-                        EncryptUtils.encrypt3DES(
-                                bytesDataDES3,
-                                bytesKeyDES3,
-                                "DESede/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertEquals(
-                res3DES,
-                EncryptUtils.encrypt3DES2HexString(
-                        bytesDataDES3,
-                        bytesKeyDES3,
-                        "DESede/ECB/NoPadding",
-                        null
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        base64Encode(bytesResDES3),
-                        EncryptUtils.encrypt3DES2Base64(
-                                bytesDataDES3,
-                                bytesKeyDES3,
-                                "DESede/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-    }
-
-    @Test
-    public void decrypt3DES() {
-        assertTrue(
-                Arrays.equals(
-                        bytesDataDES3,
-                        EncryptUtils.decrypt3DES(
-                                bytesResDES3,
-                                bytesKeyDES3,
-                                "DESede/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        bytesDataDES3,
-                        EncryptUtils.decryptHexString3DES(
-                                res3DES,
-                                bytesKeyDES3,
-                                "DESede/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        bytesDataDES3,
-                        EncryptUtils.decryptBase64_3DES(
-                                base64Encode(bytesResDES3),
-                                bytesKeyDES3,
-                                "DESede/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-    }
-
-    private String dataAES      = "11111111111111111111111111111111";
-    private String keyAES       = "11111111111111111111111111111111";
-    private String resAES       = "E56E26F5608B8D268F2556E198A0E01B";
-    private byte[] bytesDataAES = hexString2Bytes(dataAES);
-    private byte[] bytesKeyAES  = hexString2Bytes(keyAES);
-    private byte[] bytesResAES  = hexString2Bytes(resAES);
-
-    @Test
-    public void encryptAES() {
-        assertTrue(
-                Arrays.equals(
-                        bytesResAES,
-                        EncryptUtils.encryptAES(
-                                bytesDataAES,
-                                bytesKeyAES,
-                                "AES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertEquals(
-                resAES,
-                EncryptUtils.encryptAES2HexString(
-                        bytesDataAES,
-                        bytesKeyAES,
-                        "AES/ECB/NoPadding",
-                        null
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        base64Encode(bytesResAES),
-                        EncryptUtils.encryptAES2Base64(
-                                bytesDataAES,
-                                bytesKeyAES,
-                                "AES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-    }
-
-    @Test
-    public void decryptAES() {
-        assertTrue(
-                Arrays.equals(
-                        bytesDataAES,
-                        EncryptUtils.decryptAES(bytesResAES, bytesKeyAES, "AES/ECB/NoPadding", null)
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        bytesDataAES,
-                        EncryptUtils.decryptHexStringAES(
-                                resAES,
-                                bytesKeyAES,
-                                "AES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-        assertTrue(
-                Arrays.equals(
-                        bytesDataAES,
-                        EncryptUtils.decryptBase64AES(
-                                base64Encode(bytesResAES),
-                                bytesKeyAES,
-                                "AES/ECB/NoPadding",
-                                null
-                        )
-                )
-        );
-    }
-
-    private String publicKey  = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCWuAuSCrzUXC1l4ixXBeBfotUtkALrAjLM5UHiVfOFHrRJHM41HSeHVm56UZHgJlwk80R8juu1ykuhkgrilTv7H+3MpZdIunvndDElgdgk8aI2Ip4GUlemUDvCtWd3ychWEh4kYQ8CeInQvNM08imoLFldvbjWt/IkGK+BcGzamQIDAQAB";
-    private String privateKey = "MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAJa4C5IKvNRcLWXiLFcF4F+i1S2QAusCMszlQeJV84UetEkczjUdJ4dWbnpRkeAmXCTzRHyO67XKS6GSCuKVO/sf7cyll0i6e+d0MSWB2CTxojYingZSV6ZQO8K1Z3fJyFYSHiRhDwJ4idC80zTyKagsWV29uNa38iQYr4FwbNqZAgMBAAECgYAxV1k6W1eMMg0OsKeRabQVuwoNG3tJEnQtDdSu0zKg3vdohAyh6MR7EvmiA7g86HH8CsPd/y/9WJe/8j6sBO0Ye9gt7eyQ2NiwWvlTuwNmngcSTapVvVI6NEyJFMfQt9PB1EHLNAXlz8jtJUyA7C48jReQD9p/SzAP0VxG7lwyMQJBAOjE7hAZ/6fyP3DB1fG7jr9gONZcz3TUaqx6BUn4GKZnckW08ht9Xqcqft5Hthu8BbLM9ptQ0U8QZekrJwD6ya0CQQClwstZMPu8jLhsgugVwodcG1mPEOiw9Yjnmt9+WTI07Ll2uFv//hRXBnahBBnZbucUYEbUY3kqUX9b3e9TmEodAkEAybPMbxt4VDoxCy6Mi/pxChkBZ4/pHV3sSiU6bAyWn6vIc+sGWRfca5MBePA/N+1IKtY9Y/02QwL8rH5+P/URyQJAL/hdjORGFdzLimuf6pwvPBKWKncEQCHuisghIZmClBpl2duklELddAnkztg2+tvDd/wcw14+NGb9aoKhvhl2aQJAbvcgoPU+xs0CjeexH+TS2S/jKkTRpvP2CpPK/k71m13xWdE8RtMkYY1measRmlIwOfWze7ll/PGT4dxWf31FNg==";
-    private String dataRSA    = "BlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBlankjBla12345678";
-
-    @Test
-    public void encryptDecryptRSA() {
-        assertTrue(
-                Arrays.equals(
-                        EncryptUtils.decryptRSA(
-                                EncryptUtils.encryptRSA(
-                                        dataRSA.getBytes(),
-                                        base64Decode(publicKey.getBytes()),
-                                        true,
-                                        "RSA/ECB/PKCS1Padding"
-                                ),
-                                base64Decode(privateKey.getBytes()),
-                                false,
-                                "RSA/ECB/PKCS1Padding"
-                        ),
-                        dataRSA.getBytes()
-                )
-        );
-    }
-
-    private static byte[] base64Encode(final byte[] input) {
-        return Base64.encode(input, Base64.NO_WRAP);
-    }
-
-    private static byte[] base64Decode(final byte[] input) {
-        return Base64.decode(input, Base64.NO_WRAP);
-    }
-
-    private static byte[] hexString2Bytes(String hexString) {
-        if (isSpace(hexString)) return null;
-        int len = hexString.length();
-        if (len % 2 != 0) {
-            hexString = "0" + hexString;
-            len = len + 1;
-        }
-        char[] hexBytes = hexString.toUpperCase().toCharArray();
-        byte[] ret = new byte[len >> 1];
-        for (int i = 0; i < len; i += 2) {
-            ret[i >> 1] = (byte) (hex2Int(hexBytes[i]) << 4 | hex2Int(hexBytes[i + 1]));
-        }
-        return ret;
-    }
-
-    private static boolean isSpace(final String s) {
-        if (s == null) return true;
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            if (!Character.isWhitespace(s.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private static int hex2Int(final char hexChar) {
-        if (hexChar >= '0' && hexChar <= '9') {
-            return hexChar - '0';
-        } else if (hexChar >= 'A' && hexChar <= 'F') {
-            return hexChar - 'A' + 10;
-        } else {
-            throw new IllegalArgumentException();
-        }
-    }
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java b/utilcode/lib/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java
deleted file mode 100644
index c2487bdad2..0000000000
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/FileIOUtilsTest.java
+++ /dev/null
@@ -1,99 +0,0 @@
-package com.blankj.utilcode.util;
-
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Test;
-
-import java.io.FileInputStream;
-
-import static com.blankj.utilcode.util.TestConfig.PATH_FILE;
-import static com.blankj.utilcode.util.TestConfig.PATH_TEMP;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/05/24
- *     desc  : test FileIOUtils
- * </pre>
- */
-public class FileIOUtilsTest {
-
-    @Test
-    public void writeFileFromIS() throws Exception {
-        Assert.assertTrue(FileIOUtils.writeFileFromIS(PATH_TEMP + "UTF8.txt", new FileInputStream(PATH_FILE + "UTF8.txt"), false));
-        Assert.assertTrue(FileIOUtils.writeFileFromIS(PATH_TEMP + "UTF8.txt", new FileInputStream(PATH_FILE + "UTF8.txt"), true));
-    }
-
-    @Test
-    public void writeFileFromBytes() {
-//        String p = path + "test.txt";
-//        String p1 = path + "copy.zip";
-//        byte[] data = new byte[(1 << 20) * 100];
-//        long st, end;
-//        FileUtils.deleteFile(p);
-//
-//        st = System.currentTimeMillis();
-//        for (int i = 0; i < 100; i++) {
-//            FileIOUtils.writeFileFromBytesByStream(p, data, true);
-//        }
-//        end = System.currentTimeMillis();
-//        System.out.println(end - st);
-//        FileUtils.deleteFile(p);
-//
-//        st = System.currentTimeMillis();
-//        for (int i = 0; i < 100; i++) {
-//            FileIOUtils.writeFileFromBytesByChannel(p, data, true);
-//        }
-//        end = System.currentTimeMillis();
-//        System.out.println(end - st);
-//        FileUtils.deleteFile(p);
-//
-//        st = System.currentTimeMillis();
-//        for (int i = 0; i < 100; i++) {
-//            FileIOUtils.writeFileFromBytesByMap(p, data, true, false);
-//        }
-//        end = System.currentTimeMillis();
-//        System.out.println(end - st);
-//        FileUtils.deleteFile(p);
-    }
-
-    @Test
-    public void writeFileFromString() {
-
-    }
-
-    @Test
-    public void readFile2List() {
-
-    }
-
-    @Test
-    public void readFile2String() {
-
-    }
-
-    @Test
-    public void readFile2Bytes() {
-//        String p = path + "test.app.zip";
-//        long st, end;
-//        st = System.currentTimeMillis();
-//        FileIOUtils.readFile2BytesByStream(p);
-//        end = System.currentTimeMillis();
-//        System.out.println(end - st);
-//        st = System.currentTimeMillis();
-//        FileIOUtils.readFile2BytesByChannel(p);
-//        end = System.currentTimeMillis();
-//        System.out.println(end - st);
-//        st = System.currentTimeMillis();
-//        FileIOUtils.readFile2BytesByMap(p);
-//        end = System.currentTimeMillis();
-//        System.out.println(end - st);
-    }
-
-    @After
-    public void tearDown() {
-        FileUtils.deleteAllInDir(PATH_TEMP);
-    }
-
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java b/utilcode/lib/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
deleted file mode 100644
index 756df367f8..0000000000
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/FileUtilsTest.java
+++ /dev/null
@@ -1,205 +0,0 @@
-package com.blankj.utilcode.util;
-
-import org.junit.Test;
-
-import java.io.File;
-import java.io.FileFilter;
-
-import static com.blankj.utilcode.util.TestConfig.FILE_SEP;
-import static com.blankj.utilcode.util.TestConfig.PATH_FILE;
-import static com.blankj.utilcode.util.TestConfig.PATH_TEMP;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2016/08/19
- *     desc  : test FileUtils
- * </pre>
- */
-public class FileUtilsTest {
-
-    private FileFilter mFilter = new FileFilter() {
-        @Override
-        public boolean accept(File pathname) {
-            return pathname.getName().endsWith("8.txt");
-        }
-    };
-
-    private FileUtils.OnReplaceListener mListener = new FileUtils.OnReplaceListener() {
-        @Override
-        public boolean onReplace() {
-            return true;
-        }
-    };
-
-
-    @Test
-    public void getFileByPath() {
-        assertNull(FileUtils.getFileByPath(" "));
-        assertNotNull(FileUtils.getFileByPath(PATH_FILE));
-    }
-
-    @Test
-    public void isFileExists() {
-        assertTrue(FileUtils.isFileExists(PATH_FILE + "UTF8.txt"));
-        assertFalse(FileUtils.isFileExists(PATH_FILE + "UTF8"));
-    }
-
-    @Test
-    public void rename() {
-        assertTrue(FileUtils.rename(PATH_FILE + "GBK.txt", "GBK1.txt"));
-        assertTrue(FileUtils.rename(PATH_FILE + "GBK1.txt", "GBK.txt"));
-    }
-
-    @Test
-    public void isDir() {
-        assertFalse(FileUtils.isDir(PATH_FILE + "UTF8.txt"));
-        assertTrue(FileUtils.isDir(PATH_FILE));
-    }
-
-    @Test
-    public void isFile() {
-        assertTrue(FileUtils.isFile(PATH_FILE + "UTF8.txt"));
-        assertFalse(FileUtils.isFile(PATH_FILE));
-    }
-
-    @Test
-    public void createOrExistsDir() {
-        assertTrue(FileUtils.createOrExistsDir(PATH_FILE + "new Dir"));
-        assertTrue(FileUtils.createOrExistsDir(PATH_FILE));
-        assertTrue(FileUtils.deleteDir(PATH_FILE + "new Dir"));
-    }
-
-    @Test
-    public void createOrExistsFile() {
-        assertTrue(FileUtils.createOrExistsFile(PATH_FILE + "new File"));
-        assertFalse(FileUtils.createOrExistsFile(PATH_FILE));
-        assertTrue(FileUtils.deleteFile(PATH_FILE + "new File"));
-    }
-
-    @Test
-    public void createFileByDeleteOldFile() {
-        assertTrue(FileUtils.createFileByDeleteOldFile(PATH_FILE + "new File"));
-        assertFalse(FileUtils.createFileByDeleteOldFile(PATH_FILE));
-        assertTrue(FileUtils.deleteFile(PATH_FILE + "new File"));
-    }
-
-    @Test
-    public void copyDir() {
-        assertFalse(FileUtils.copyDir(PATH_FILE, PATH_FILE, mListener));
-        assertFalse(FileUtils.copyDir(PATH_FILE, PATH_FILE + "new Dir", mListener));
-        assertTrue(FileUtils.copyDir(PATH_FILE, PATH_TEMP, mListener));
-        assertTrue(FileUtils.deleteDir(PATH_TEMP));
-    }
-
-    @Test
-    public void copyFile() {
-        assertFalse(FileUtils.copyFile(PATH_FILE + "GBK.txt", PATH_FILE + "GBK.txt", mListener));
-        assertTrue(FileUtils.copyFile(PATH_FILE + "GBK.txt", PATH_FILE + "new Dir" + FILE_SEP + "GBK.txt", mListener));
-        assertTrue(FileUtils.copyFile(PATH_FILE + "GBK.txt", PATH_TEMP + "GBK.txt", mListener));
-        assertTrue(FileUtils.deleteDir(PATH_FILE + "new Dir"));
-        assertTrue(FileUtils.deleteDir(PATH_TEMP));
-    }
-
-    @Test
-    public void moveDir() {
-        assertFalse(FileUtils.moveDir(PATH_FILE, PATH_FILE, mListener));
-        assertFalse(FileUtils.moveDir(PATH_FILE, PATH_FILE + "new Dir", mListener));
-        assertTrue(FileUtils.moveDir(PATH_FILE, PATH_TEMP, mListener));
-        assertTrue(FileUtils.moveDir(PATH_TEMP, PATH_FILE, mListener));
-    }
-
-    @Test
-    public void moveFile() {
-        assertFalse(FileUtils.moveFile(PATH_FILE + "GBK.txt", PATH_FILE + "GBK.txt", mListener));
-        assertTrue(FileUtils.moveFile(PATH_FILE + "GBK.txt", PATH_TEMP + "GBK.txt", mListener));
-        assertTrue(FileUtils.moveFile(PATH_TEMP + "GBK.txt", PATH_FILE + "GBK.txt", mListener));
-        FileUtils.deleteDir(PATH_TEMP);
-    }
-
-    @Test
-    public void listFilesInDir() {
-        System.out.println(FileUtils.listFilesInDir(PATH_FILE, false).toString());
-        System.out.println(FileUtils.listFilesInDir(PATH_FILE, true).toString());
-    }
-
-    @Test
-    public void listFilesInDirWithFilter() {
-        System.out.println(FileUtils.listFilesInDirWithFilter(PATH_FILE, mFilter, false).toString());
-        System.out.println(FileUtils.listFilesInDirWithFilter(PATH_FILE, mFilter, true).toString());
-    }
-
-    @Test
-    public void getFileLastModified() {
-        System.out.println(TimeUtils.millis2String(FileUtils.getFileLastModified(PATH_FILE)));
-    }
-
-    @Test
-    public void getFileCharsetSimple() {
-        assertEquals("GBK", FileUtils.getFileCharsetSimple(PATH_FILE + "GBK.txt"));
-        assertEquals("Unicode", FileUtils.getFileCharsetSimple(PATH_FILE + "Unicode.txt"));
-        assertEquals("UTF-8", FileUtils.getFileCharsetSimple(PATH_FILE + "UTF8.txt"));
-        assertEquals("UTF-16BE", FileUtils.getFileCharsetSimple(PATH_FILE + "UTF16BE.txt"));
-    }
-
-    @Test
-    public void getFileLines() {
-        assertEquals(7, FileUtils.getFileLines(PATH_FILE + "UTF8.txt"));
-    }
-
-    @Test
-    public void getDirSize() {
-        System.out.println(FileUtils.getDirSize(PATH_FILE));
-    }
-
-    @Test
-    public void getFileSize() {
-        System.out.println(FileUtils.getFileSize(PATH_FILE + "UTF8.txt"));
-    }
-
-    @Test
-    public void getDirLength() {
-        System.out.println(FileUtils.getDirLength(PATH_FILE));
-    }
-
-    @Test
-    public void getFileLength() {
-        System.out.println(FileUtils.getFileLength(PATH_FILE + "UTF8.txt"));
-        System.out.println(FileUtils.getFileLength("https://raw.githubusercontent.com/Blankj/AndroidUtilCode/85bc44d1c8adb31027870ea4cb7a931700c80cad/LICENSE"));
-    }
-
-    @Test
-    public void getFileMD5ToString() {
-        assertEquals("249D3E76851DCC56C945994DE9DAC406", FileUtils.getFileMD5ToString(PATH_FILE + "UTF8.txt"));
-    }
-
-    @Test
-    public void getDirName() {
-        assertEquals(PATH_FILE, FileUtils.getDirName(new File(PATH_FILE + "UTF8.txt")));
-        assertEquals(PATH_FILE, FileUtils.getDirName(PATH_FILE + "UTF8.txt"));
-    }
-
-    @Test
-    public void getFileName() {
-        assertEquals("UTF8.txt", FileUtils.getFileName(PATH_FILE + "UTF8.txt"));
-        assertEquals("UTF8.txt", FileUtils.getFileName(new File(PATH_FILE + "UTF8.txt")));
-    }
-
-    @Test
-    public void getFileNameNoExtension() {
-        assertEquals("UTF8", FileUtils.getFileNameNoExtension(PATH_FILE + "UTF8.txt"));
-        assertEquals("UTF8", FileUtils.getFileNameNoExtension(new File(PATH_FILE + "UTF8.txt")));
-    }
-
-    @Test
-    public void getFileExtension() {
-        assertEquals("txt", FileUtils.getFileExtension(new File(PATH_FILE + "UTF8.txt")));
-        assertEquals("txt", FileUtils.getFileExtension(PATH_FILE + "UTF8.txt"));
-    }
-}
\ No newline at end of file
diff --git a/utilcode/lib/src/test/java/com/blankj/utilcode/util/TestConfig.java b/utilcode/lib/src/test/java/com/blankj/utilcode/util/TestConfig.java
deleted file mode 100644
index 6ea0c4b48c..0000000000
--- a/utilcode/lib/src/test/java/com/blankj/utilcode/util/TestConfig.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.blankj.utilcode.util;
-
-/**
- * <pre>
- *     author: Blankj
- *     blog  : http://blankj.com
- *     time  : 2017/09/10
- *     desc  : config of test
- * </pre>
- */
-public class TestConfig {
-
-    static final String FILE_SEP = System.getProperty("file.separator");
-
-    static final String LINE_SEP = System.getProperty("line.separator");
-
-    static final String TEST_PATH;
-
-    static {
-        String projectPath = System.getProperty("user.dir");
-        if (!projectPath.contains("utilcode")) {
-            projectPath += FILE_SEP + "utilcode";
-        }
-        TEST_PATH = projectPath + FILE_SEP + "src" + FILE_SEP + "test" + FILE_SEP + "res" + FILE_SEP;
-    }
-
-    static final String PATH_TEMP = TEST_PATH + "temp" + FILE_SEP;
-
-    static final String PATH_CACHE = TEST_PATH + "cache" + FILE_SEP;
-
-    static final String PATH_ENCRYPT = TEST_PATH + "encrypt" + FILE_SEP;
-
-    static final String PATH_FILE = TEST_PATH + "file" + FILE_SEP;
-
-    static final String PATH_ZIP = TEST_PATH + "zip" + FILE_SEP;
-}
diff --git a/utilcode/lib/src/test/res/file/GBK.txt b/utilcode/lib/src/test/res/file/GBK.txt
deleted file mode 100644
index 88ef6b9454..0000000000
--- a/utilcode/lib/src/test/res/file/GBK.txt
+++ /dev/null
@@ -1 +0,0 @@
-GBK
\ No newline at end of file
diff --git a/utilcode/pkg/build.gradle b/utilcode/pkg/build.gradle
deleted file mode 100644
index 5d7fe91a1f..0000000000
--- a/utilcode/pkg/build.gradle
+++ /dev/null
@@ -1,34 +0,0 @@
-apply plugin: 'com.android.library'
-
-android {
-    compileSdkVersion 28
-
-
-
-    defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 28
-        versionCode 1
-        versionName "1.0"
-
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
-
-}
-
-dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-}
diff --git a/utilcode/pkg/src/main/AndroidManifest.xml b/utilcode/pkg/src/main/AndroidManifest.xml
deleted file mode 100644
index 52c51f2ee4..0000000000
--- a/utilcode/pkg/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.blankj.pkgutilcode" />
diff --git a/utilcode/pkg/src/main/res/values/strings.xml b/utilcode/pkg/src/main/res/values/strings.xml
deleted file mode 100644
index e533fc7489..0000000000
--- a/utilcode/pkg/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <string name="app_name">pkgutilcode</string>
-</resources>