Development commit

Upgraded Gradle.
Updated all internal dependencies.
Fixed deprecated code.
Set target SDK to 30.
Made the benchmark to use internal files directory and removed the need for external storage access permission.
Replaced Kotlin synthetics with Jetpack Viewbinding.

Author: BharathVishal

app/build.gradle

@@ -2,17 +2,17 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
 
-    buildToolsVersion "29.0.3"
+    buildToolsVersion "30.0.3"
     defaultConfig {
         applicationId "com.bharathvishal.textfilegeneratorbenchmark"
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 30
         multiDexEnabled true
-        versionCode 10
+        versionCode 12
         vectorDrawables.useSupportLibrary = true
-        versionName "1.2.3"
+        versionName "1.2.4"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
@@ -41,16 +41,16 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'com.google.android.material:material:1.4.0'
     implementation 'com.github.bumptech.glide:glide:4.12.0'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.12.0'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     implementation 'androidx.appcompat:appcompat:1.3.0'
-    implementation 'androidx.core:core-ktx:1.5.0'
+    implementation 'androidx.core:core-ktx:1.6.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test:runner:1.3.0'
+    androidTestImplementation 'androidx.test:runner:1.4.0'
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.3"
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
 }

app/src/main/AndroidManifest.xml

@@ -1,38 +1,40 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          xmlns:tools="http://schemas.android.com/tools" package="com.bharathvishal.textfilegeneratorbenchmark">
-
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.bharathvishal.textfilegeneratorbenchmark">
 
 
     <application
-            android:allowBackup="true"
-            android:icon="@mipmap/ic_launcher"
-            android:requestLegacyExternalStorage="true"
-            android:label="@string/app_name"
-            android:roundIcon="@mipmap/ic_launcher_round"
-            android:supportsRtl="true"
-            android:theme="@style/AppTheme" tools:ignore="GoogleAppIndexingWarning"
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:requestLegacyExternalStorage="true"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning"
         tools:targetApi="q">
-        <activity android:name=".MainActivity"
-                  android:screenOrientation="portrait">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:screenOrientation="portrait"
+            tools:ignore="LockedOrientationActivity">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
+                <action android:name="android.intent.action.MAIN" />
 
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
 
 
         <provider
-                android:name="androidx.core.content.FileProvider"
-                android:authorities="${applicationId}.provider"
-                android:exported="false"
-                android:grantUriPermissions="true">
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
             <meta-data
-                    android:name="android.support.FILE_PROVIDER_PATHS"
-                    android:resource="@xml/provider_paths_app" />
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_paths_app" />
         </provider>
     </application>
 

app/src/main/java/com/bharathvishal/textfilegeneratorbenchmark/MainActivity.kt

@@ -4,6 +4,8 @@ package com.bharathvishal.textfilegeneratorbenchmark
 import android.content.Context
 import android.os.Bundle
 import android.os.Handler
+import android.os.Looper
+import android.os.Looper.*
 import android.widget.LinearLayout
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
@@ -15,7 +17,6 @@ class MainActivity : AppCompatActivity() {
     private var fragmentLayout: LinearLayout? = null
 
     //Fragment back button handling
-    private var handlerOb: Handler? = null
     private var doubleBackToExitPressedOnce: Boolean = false
     private val mRunnableBackButton = Runnable { doubleBackToExitPressedOnce = false }
 
@@ -33,7 +34,6 @@ class MainActivity : AppCompatActivity() {
 
         activityContextMain = this@MainActivity
 
-
         try {
             val mgr = supportFragmentManager
             val trans = mgr.beginTransaction()
@@ -53,8 +53,10 @@ class MainActivity : AppCompatActivity() {
     override fun onBackPressed() {
         //part to handle back press
         //executed when stack_top=-1 and activity recreated value is No
-        handlerOb = Handler()
-        handlerOb?.postDelayed(mRunnableBackButton, 1500) // 1.50 seconds in ms
+        Handler(Looper.getMainLooper()).postDelayed({
+            mRunnableBackButton
+        }, 1500)
+        // 1.50 seconds in ms
 
 
         if (doubleBackToExitPressedOnce) {