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added runtime permission android example
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‎RuntimePermissionAndroid/.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

‎RuntimePermissionAndroid/app/.gitignore‎

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/build

‎RuntimePermissionAndroid/app/build.gradle‎

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plugins {
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id 'com.android.application'
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id 'org.jetbrains.kotlin.android'
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}
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android {
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compileSdk 32
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defaultConfig {
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applicationId "com.velmurugan.runtimepermissionandroid"
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minSdk 26
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targetSdk 32
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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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kotlinOptions {
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jvmTarget = '1.8'
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}
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}
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dependencies {
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implementation 'androidx.core:core-ktx:1.7.0'
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implementation 'androidx.appcompat:appcompat:1.4.1'
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implementation 'com.google.android.material:material:1.5.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
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testImplementation 'junit:junit:4.13.2'
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androidTestImplementation 'androidx.test.ext:junit:1.1.3'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
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}

‎RuntimePermissionAndroid/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

‎RuntimePermissionAndroid/app/src/androidTest/java/com/velmurugan/runtimepermissionandroid/ExampleInstrumentedTest.kt‎

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package com.velmurugan.runtimepermissionandroid
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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 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 [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.velmurugan.runtimepermissionandroid", appContext.packageName)
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}
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}

‎RuntimePermissionAndroid/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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package="com.velmurugan.runtimepermissionandroid">
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<uses-permission android:name="android.permission.CAMERA" />
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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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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.RuntimePermissionAndroid">
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<activity
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android:name=".MainActivity"
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android:exported="true">
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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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</application>
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</manifest>

‎RuntimePermissionAndroid/app/src/main/java/com/velmurugan/runtimepermissionandroid/MainActivity.kt‎

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package com.velmurugan.runtimepermissionandroid
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import android.Manifest
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import android.content.DialogInterface
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import android.content.pm.PackageManager
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import android.widget.Button
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import android.widget.Toast
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import androidx.appcompat.app.AlertDialog
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import androidx.core.app.ActivityCompat
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import androidx.core.content.ContextCompat
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import androidx.core.content.PackageManagerCompat
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import java.security.Permission
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class MainActivity : AppCompatActivity() {
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lateinit var btnCamera: Button
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lateinit var btnLocation: Button
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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btnCamera = findViewById(R.id.btnCamera)
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btnLocation = findViewById(R.id.btnLocation)
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btnCamera.setOnClickListener {
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if (checkPermission(Manifest.permission.CAMERA)) {
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//openCamera()
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} else {
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if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA)) {
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AlertDialog.Builder(this)
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.setMessage("Need camera permission to capture image. Please provide permission to access your camera.")
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.setPositiveButton("OK") { dialogInterface, i ->
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dialogInterface.dismiss()
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ActivityCompat.requestPermissions(
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this,
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arrayOf(Manifest.permission.CAMERA),
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201
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)
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}
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.setNegativeButton("Cancel") { dialogInterface, i ->
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dialogInterface.dismiss()
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}
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.create()
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.show();
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} else {
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ActivityCompat.requestPermissions(
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this,
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arrayOf(Manifest.permission.CAMERA,Manifest.permission.READ_EXTERNAL_STORAGE),
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201
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)
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}
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}
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/**/
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}
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}
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private fun checkPermission(permission: String): Boolean {
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return ContextCompat.checkSelfPermission(
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this,
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permission
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) == PackageManager.PERMISSION_GRANTED
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}
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override fun onRequestPermissionsResult(
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requestCode: Int,
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permissions: Array<out String>,
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grantResults: IntArray
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) {
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super.onRequestPermissionsResult(requestCode, permissions, grantResults)
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if (requestCode == 201) {
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if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
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Toast.makeText(this, "Permission granted", Toast.LENGTH_SHORT).show()
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//openCamera()
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} else {
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Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show()
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}
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}
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}
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}

‎RuntimePermissionAndroid/app/src/main/res/drawable-v24/ic_launcher_foreground.xml‎

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:aapt="http://schemas.android.com/aapt"
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android:width="108dp"
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android:height="108dp"
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android:viewportWidth="108"
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android:viewportHeight="108">
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<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
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<aapt:attr name="android:fillColor">
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<gradient
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android:endX="85.84757"
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android:endY="92.4963"
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android:startX="42.9492"
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android:startY="49.59793"
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android:type="linear">
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<item
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android:color="#44000000"
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android:offset="0.0" />
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<item
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android:color="#00000000"
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android:offset="1.0" />
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</gradient>
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</aapt:attr>
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</path>
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<path
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android:fillColor="#FFFFFF"
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android:fillType="nonZero"
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android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
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android:strokeWidth="1"
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android:strokeColor="#00000000" />
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</vector>

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