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jetpack app-startup demo.
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‎Jetpack-AppStartup-Demo/.gitignore‎

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*.iml
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.gradle
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/local.properties
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/.idea/caches
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/.idea/libraries
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/.idea/modules.xml
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/.idea/workspace.xml
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/.idea/navEditor.xml
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/.idea/assetWizardSettings.xml
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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.cxx
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local.properties

‎Jetpack-AppStartup-Demo/app/.gitignore‎

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/build

‎Jetpack-AppStartup-Demo/app/build.gradle‎

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plugins {
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id 'com.android.application'
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}
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android {
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compileSdkVersion 30
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buildToolsVersion "30.0.2"
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defaultConfig {
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applicationId "cn.yan.appstartup"
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minSdkVersion 21
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targetSdkVersion 30
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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}
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dependencies {
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implementation "androidx.startup:startup-runtime:1.0.0"
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implementation 'androidx.appcompat:appcompat:1.2.0'
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implementation 'com.google.android.material:material:1.2.1'
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implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
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testImplementation 'junit:junit:4.+'
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androidTestImplementation 'androidx.test.ext:junit:1.1.2'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
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}

‎Jetpack-AppStartup-Demo/app/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎Jetpack-AppStartup-Demo/app/src/androidTest/java/cn/yan/appstartup/ExampleInstrumentedTest.java‎

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package cn.yan.appstartup;
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import android.content.Context;
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import androidx.test.platform.app.InstrumentationRegistry;
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import androidx.test.ext.junit.runners.AndroidJUnit4;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import static org.junit.Assert.*;
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
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*/
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@RunWith(AndroidJUnit4.class)
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public class ExampleInstrumentedTest {
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@Test
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public void useAppContext() {
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// Context of the app under test.
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Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
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assertEquals("cn.yan.appstartup", appContext.getPackageName());
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}
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}

‎Jetpack-AppStartup-Demo/app/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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package="cn.yan.appstartup">
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/Theme.JetpackAppStartupDemo">
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<activity android:name=".MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<provider
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android:name="androidx.startup.InitializationProvider"
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android:authorities="${applicationId}.androidx-startup"
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android:exported="false"
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tools:node="merge">
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<!-- This entry makes ExampleLoggerInitializer discoverable. -->
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<meta-data android:name="cn.yan.appstartup.Binitializer"
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android:value="androidx.startup" />
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<meta-data android:name="cn.yan.appstartup.Cinitializer"
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android:value="androidx.startup" />
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<meta-data android:name="cn.yan.appstartup.DasAinitializer"
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android:value="androidx.startup" />
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</provider>
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</application>
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</manifest>

‎Jetpack-AppStartup-Demo/app/src/main/java/cn/yan/appstartup/Ainitializer.java‎

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package cn.yan.appstartup;
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import android.content.Context;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.startup.Initializer;
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import java.util.Arrays;
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import java.util.List;
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/**
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* @author yanbo1
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*/
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public class Ainitializer implements Initializer<Object> {
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private static final String TAG = "Initializer";
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@NonNull
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@Override
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public Object create(@NonNull Context context) {
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Log.d(TAG, "Ainitializer create...");
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return new Object();
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}
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@NonNull
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@Override
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public List<Class<? extends Initializer<?>>> dependencies() {
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Log.d(TAG, "Ainitializer dependencies");
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return Arrays.asList(Cinitializer.class);
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}
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}

‎Jetpack-AppStartup-Demo/app/src/main/java/cn/yan/appstartup/Binitializer.java‎

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package cn.yan.appstartup;
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import android.content.Context;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.startup.Initializer;
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import java.util.Collections;
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import java.util.List;
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/**
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* @author yanbo1
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*/
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public class Binitializer implements Initializer<Object> {
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private static final String TAG = "Initializer";
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@NonNull
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@Override
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public Object create(@NonNull Context context) {
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Log.d(TAG, "Binitializer create...");
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return new Object();
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}
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@NonNull
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@Override
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public List<Class<? extends Initializer<?>>> dependencies() {
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Log.d(TAG, "Binitializer dependencies");
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return Collections.emptyList();
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}
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}

‎Jetpack-AppStartup-Demo/app/src/main/java/cn/yan/appstartup/Cinitializer.java‎

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package cn.yan.appstartup;
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import android.content.Context;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.startup.Initializer;
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import java.util.Collections;
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import java.util.List;
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/**
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* @author yanbo1
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*/
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public class Cinitializer implements Initializer<Object> {
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private static final String TAG = "Initializer";
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@NonNull
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@Override
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public Object create(@NonNull Context context) {
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Log.d(TAG, "Cinitializer create...");
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return new Object();
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}
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@NonNull
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@Override
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public List<Class<? extends Initializer<?>>> dependencies() {
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Log.d(TAG, "Cinitializer dependencies");
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return Collections.emptyList();
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}
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}

‎Jetpack-AppStartup-Demo/app/src/main/java/cn/yan/appstartup/DasAinitializer.java‎

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package cn.yan.appstartup;
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import android.content.Context;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.startup.Initializer;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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/**
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* @author yanbo1
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*/
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public class DasAinitializer extends Ainitializer {
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private static final String TAG = "Initializer";
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@NonNull
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@Override
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public Object create(@NonNull Context context) {
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Log.d(TAG, "DasAinitializer create...");
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return super.create(context);
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}
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@NonNull
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@Override
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public List<Class<? extends Initializer<?>>> dependencies() {
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Log.d(TAG, "DasAinitializer dependencies");
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return Arrays.asList(Binitializer.class);
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}
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}

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