Create a rebuild script for in_app_purchases codelab (#2268)

## Pre-launch Checklist

- [x] I read the [Effective Dart: Style] _recently_, and have followed
its advice.
- [x] I signed the [CLA].
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel
channel on [Discord].

<!-- Links -->
[Effective Dart: Style]:
https://dart.dev/guides/language/effective-dart/style
[CLA]: https://cla.developers.google.com/
[Discord]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Chat.md

Author: domesticmouse

in_app_purchases/codelab_rebuild.yaml

@@ -8,6 +8,7 @@
 .buildlog/
 .history
 .svn/
+migrate_working_dir/
 
 # IntelliJ related
 *.iml
@@ -26,14 +27,10 @@
 .dart_tool/
 .flutter-plugins
 .flutter-plugins-dependencies
-.packages
 .pub-cache/
 .pub/
 /build/
 
-# Web related
-lib/generated_plugin_registrant.dart
-
 # Symbolication related
 app.*.symbols
 

in_app_purchases/complete/app/.gitignore

@@ -7,5 +7,7 @@ gradle-wrapper.jar
 GeneratedPluginRegistrant.java
 
 # Remember to never publicly share your keystore.
-# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+# See https://flutter.dev/to/reference-keystore
 key.properties
+**/*.keystore
+**/*.jks

in_app_purchases/complete/app/android/.gitignore

@@ -1,70 +1,43 @@
-def localProperties = new Properties()
-def localPropertiesFile = rootProject.file('local.properties')
-if (localPropertiesFile.exists()) {
-    localPropertiesFile.withReader('UTF-8') { reader ->
-        localProperties.load(reader)
-    }
-}
-
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
-def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
-if (flutterVersionCode == null) {
-    flutterVersionCode = '1'
-}
-
-def flutterVersionName = localProperties.getProperty('flutter.versionName')
-if (flutterVersionName == null) {
-    flutterVersionName = '1.0'
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id "dev.flutter.flutter-gradle-plugin"
 }
 
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
 android {
-    compileSdkVersion 31
+    namespace = "com.example.dashclicker"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
     }
 
     kotlinOptions {
-        jvmTarget = '11'
-    }
-
-    sourceSets {
-        main.java.srcDirs += 'src/main/kotlin'
+        jvmTarget = JavaVersion.VERSION_1_8
     }
 
     defaultConfig {
-        applicationId "com.example.dashclicker"
-        minSdkVersion 19
-        targetSdkVersion 30
-        versionCode flutterVersionCode.toInteger()
-        versionName flutterVersionName
-        multiDexEnabled true
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.example.dashclicker"
+        // Per https://firebase.google.com/support/release-notes/android firebase_auth requires minSdk 23
+        minSdk = 23
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
     }
 
     buildTypes {
         release {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
+            signingConfig = signingConfigs.debug
         }
     }
 }
 
 flutter {
-    source '../..'
+    source = "../.."
 }
-
-dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-}
-
-apply plugin: 'com.google.gms.google-services'

in_app_purchases/complete/app/android/app/build.gradle

@@ -1,6 +1,6 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.dashclicker">
-    <!-- Flutter needs it to communicate with the running application
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>

in_app_purchases/complete/app/android/app/src/debug/AndroidManifest.xml

@@ -1,11 +1,13 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.dashclicker">
-   <application
-        android:label="iap"
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="dashclicker"
+        android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:launchMode="singleTop"
+            android:taskAffinity=""
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
@@ -29,4 +31,15 @@
             android:name="flutterEmbedding"
             android:value="2" />
     </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
 </manifest>

in_app_purchases/complete/app/android/app/src/main/AndroidManifest.xml

@@ -2,5 +2,4 @@ package com.example.dashclicker
 
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity: FlutterActivity()

in_app_purchases/complete/app/android/app/src/main/kotlin/com/example/dashclicker/MainActivity.kt

@@ -3,14 +3,14 @@
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
     <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
         <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
+             the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your
          Flutter UI initializes, as well as behind your Flutter UI while its
          running.
-         
+
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
     <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
         <item name="android:windowBackground">?android:colorBackground</item>

in_app_purchases/complete/app/android/app/src/main/res/values-night/styles.xml

@@ -3,14 +3,14 @@
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
     <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
         <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
+             the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your
          Flutter UI initializes, as well as behind your Flutter UI while its
          running.
-         
+
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
     <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
         <item name="android:windowBackground">?android:colorBackground</item>

in_app_purchases/complete/app/android/app/src/main/res/values/styles.xml

@@ -1,6 +1,6 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.dashclicker">
-    <!-- Flutter needs it to communicate with the running application
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>