Test the Android embedding v2 (#42708)

* Test the Android embedding v2

* Update integration tests

* Split into shards

.cirrus.yml

@@ -235,45 +235,41 @@ task:
       container:
         cpu: 4
         memory: 12G
-    - name: integration_tests_gradle1-linux
+    - name: gradle_tests-linux-shard-1
       env:
         SHARD: integration_tests
         SUBSHARD: gradle1
       test_script:
-        # Unsetting CIRRUS_CHANGE_MESSAGE and CIRRUS_COMMIT_MESSAGE as they
-        # might include non-ASCII characters which makes Gradle crash.
-        # See: https://github.com/flutter/flutter/issues/24935
-        # This is a temporary workaround until we figure how to properly configure
-        # a UTF8 locale on Cirrus (or until the Gradle bug is fixed).
-        # TODO(amirh): Set the locale to UTF8.
-        - echo "$CIRRUS_CHANGE_MESSAGE" > /tmp/cirrus_change_message.txt
-        - echo "$CIRRUS_COMMIT_MESSAGE" > /tmp/cirrus_commit_message.txt
-        - export CIRRUS_CHANGE_MESSAGE=""
-        - export CIRRUS_COMMIT_MESSAGE=""
         - dart --enable-asserts ./dev/bots/test.dart
-        - export CIRRUS_CHANGE_MESSAGE=`cat /tmp/cirrus_change_message.txt`
-        - export CIRRUS_COMMIT_MESSAGE=`cat /tmp/cirrus_commit_message.txt`
       container:
         cpu: 4
         memory: 12G
-    - name: integration_tests_gradle2-linux
+    - name: gradle_tests-linux-shard-2
       env:
         SHARD: integration_tests
         SUBSHARD: gradle2
       test_script:
-        # Unsetting CIRRUS_CHANGE_MESSAGE and CIRRUS_COMMIT_MESSAGE as they
-        # might include non-ASCII characters which makes Gradle crash.
-        # See: https://github.com/flutter/flutter/issues/24935
-        # This is a temporary workaround until we figure how to properly configure
-        # a UTF8 locale on Cirrus (or until the Gradle bug is fixed).
-        # TODO(amirh): Set the locale to UTF8.
-        - echo "$CIRRUS_CHANGE_MESSAGE" > /tmp/cirrus_change_message.txt
-        - echo "$CIRRUS_COMMIT_MESSAGE" > /tmp/cirrus_commit_message.txt
-        - export CIRRUS_CHANGE_MESSAGE=""
-        - export CIRRUS_COMMIT_MESSAGE=""
         - dart --enable-asserts ./dev/bots/test.dart
-        - export CIRRUS_CHANGE_MESSAGE=`cat /tmp/cirrus_change_message.txt`
-        - export CIRRUS_COMMIT_MESSAGE=`cat /tmp/cirrus_commit_message.txt`
+      container:
+        cpu: 4
+        memory: 12G
+    - name: gradle_embedding_v2_tests-linux-shard-1
+      env:
+        SHARD: integration_tests
+        SUBSHARD: gradle1
+        ENABLE_ANDROID_EMBEDDING_V2: 'true'
+      test_script:
+        - dart --enable-asserts ./dev/bots/test.dart
+      container:
+        cpu: 4
+        memory: 12G
+    - name: gradle_embedding_v2_tests-linux-shard-2
+      env:
+        SHARD: integration_tests
+        SUBSHARD: gradle2
+        ENABLE_ANDROID_EMBEDDING_V2: 'true'
+      test_script:
+        - dart --enable-asserts ./dev/bots/test.dart
       container:
         cpu: 4
         memory: 12G
@@ -433,19 +429,39 @@ task:
         - CMD /S /C "IF EXIST "bin\cache\pkg\tests\" RMDIR /S /Q bin\cache\pkg\tests"
         - git clone https://github.com/flutter/tests.git bin\cache\pkg\tests
         - dart --enable-asserts dev\customer_testing\run_tests.dart --skip-on-fetch-failure --skip-template bin/cache/pkg/tests/registry/*.test
-    - name: integration_tests_gradle1-windows
+    - name: gradle_tests-windows-shard-1
+      env:
+        SHARD: integration_tests
+        SUBSHARD: gradle1
+      test_script:
+        - dart --enable-asserts dev\bots\test.dart
+      container:
+        cpu: 4
+        memory: 12G
+    - name: gradle_tests-windows-shard-2
+      env:
+        SHARD: integration_tests
+        SUBSHARD: gradle2
+      test_script:
+        - dart --enable-asserts dev\bots\test.dart
+      container:
+        cpu: 4
+        memory: 12G
+    - name: gradle_embedding_v2_tests-windows-shard-1
       env:
         SHARD: integration_tests
         SUBSHARD: gradle1
+        ENABLE_ANDROID_EMBEDDING_V2: 'true'
       test_script:
         - dart --enable-asserts dev\bots\test.dart
       container:
         cpu: 4
         memory: 12G
-    - name: integration_tests_gradle2-windows
+    - name: gradle_embedding_v2_tests-windows-shard-2
       env:
         SHARD: integration_tests
         SUBSHARD: gradle2
+        ENABLE_ANDROID_EMBEDDING_V2: 'true'
       test_script:
         - dart --enable-asserts dev\bots\test.dart
       container:
@@ -627,8 +643,14 @@ docker_builder:
     - tool_tests_integration-linux
     - build_tests-linux
     - integration_tests-linux
-    - integration_tests_gradle1-linux
-    - integration_tests_gradle2-linux
+    - gradle_tests-linux-shard-1
+    - gradle_tests-linux-shard-2
+    - gradle_embedding_v2_tests-linux-shard-1
+    - gradle_embedding_v2_tests-linux-shard-2
+    - gradle_tests-windows-shard-1
+    - gradle_tests-windows-shard-2
+    - gradle_embedding_v2_tests-windows-shard-1
+    - gradle_embedding_v2_tests-windows-shard-2
     - release_smoke_tests
   build_script: "$CIRRUS_WORKING_DIR/dev/ci/docker_linux/docker_build.sh"
   login_script: "$CIRRUS_WORKING_DIR/dev/ci/docker_linux/docker_login.sh"

dev/bots/firebase_testlab.sh

@@ -8,7 +8,7 @@
 tests=(
   "dev/integration_tests/release_smoke_test"
   "dev/integration_tests/abstract_method_smoke_test"
-  "dev/integration_tests/android_embedding_2"
+  "dev/integration_tests/android_embedding_v2_smoke_test"
 )
 
 # The devices where the tests are run.

dev/bots/test.dart

@@ -925,8 +925,6 @@ Future<void> _runIntegrationTests() async {
 // TODO(jmagman): Re-enable once flakiness is resolved.
 //        await _runDevicelabTest('module_test_ios');
       }
-      // This does less work if the subshard isn't Android.
-      await _androidPluginTest();
   }
 }
 
@@ -949,44 +947,30 @@ String get androidSdkRoot {
   return androidSdkRoot;
 }
 
-Future<void> _androidPluginTest() async {
-  if (androidSdkRoot == null) {
-    print('No Android SDK detected, skipping Android Plugin test.');
-    return;
-  }
-
-  final Map<String, String> env = <String, String> {
-    'ANDROID_HOME': androidSdkRoot,
-    'ANDROID_SDK_ROOT': androidSdkRoot,
-  };
-
-  await _runDevicelabTest('plugin_test', env: env);
-}
-
 Future<void> _androidGradleTests(String subShard) async {
   // TODO(dnfield): gradlew is crashing on the cirrus image and it's not clear why.
   if (androidSdkRoot == null || Platform.isWindows) {
     print('No Android SDK detected or on Windows, skipping Android gradle test.');
     return;
   }
-
-  final Map<String, String> env = <String, String> {
+  final Map<String, String> defaultEnv = <String, String>{
     'ANDROID_HOME': androidSdkRoot,
     'ANDROID_SDK_ROOT': androidSdkRoot,
+    'ENABLE_ANDROID_EMBEDDING_V2': Platform.environment['ENABLE_ANDROID_EMBEDDING_V2'] ?? '',
   };
-
   if (subShard == 'gradle1') {
-    await _runDevicelabTest('gradle_plugin_light_apk_test', env: env);
-    await _runDevicelabTest('gradle_plugin_fat_apk_test', env: env);
-    await _runDevicelabTest('gradle_r8_test', env: env);
-    await _runDevicelabTest('gradle_non_android_plugin_test', env: env);
-    await _runDevicelabTest('gradle_jetifier_test', env: env);
+    await _runDevicelabTest('gradle_plugin_light_apk_test', env: defaultEnv);
+    await _runDevicelabTest('gradle_plugin_fat_apk_test', env: defaultEnv);
+    await _runDevicelabTest('gradle_r8_test', env: defaultEnv);
+    await _runDevicelabTest('gradle_non_android_plugin_test', env: defaultEnv);
+    await _runDevicelabTest('gradle_jetifier_test', env: defaultEnv);
   }
   if (subShard == 'gradle2') {
-    await _runDevicelabTest('gradle_plugin_bundle_test', env: env);
-    await _runDevicelabTest('module_test', env: env);
-    await _runDevicelabTest('module_host_with_custom_build_test', env: env);
-    await _runDevicelabTest('build_aar_module_test', env: env);
+    await _runDevicelabTest('gradle_plugin_bundle_test', env: defaultEnv);
+    await _runDevicelabTest('module_test', env: defaultEnv);
+    await _runDevicelabTest('module_host_with_custom_build_test', env: defaultEnv);
+    await _runDevicelabTest('build_aar_module_test', env: defaultEnv);
+    await _runDevicelabTest('plugin_test', env: defaultEnv);
   }
 }
 

dev/devicelab/bin/tasks/module_host_with_custom_build_test.dart

@@ -13,6 +13,8 @@ import 'package:path/path.dart' as path;
 final String gradlew = Platform.isWindows ? 'gradlew.bat' : 'gradlew';
 final String gradlewExecutable = Platform.isWindows ? gradlew : './$gradlew';
 
+final bool useAndroidEmbeddingV2 = Platform.environment['ENABLE_ANDROID_EMBEDDING_V2'] == 'true';
+
 /// Tests that the Android app containing a Flutter module can be built when
 /// it has custom build types and flavors.
 Future<void> main() async {
@@ -53,7 +55,14 @@ Future<void> main() async {
       final Directory hostAppDir = Directory(path.join(tempDir.path, 'hello_host_app_with_custom_build'));
       mkdir(hostAppDir);
       recursiveCopy(
-        Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'module_host_with_custom_build')),
+        Directory(
+          path.join(
+            flutterDirectory.path,
+            'dev',
+            'integration_tests',
+             useAndroidEmbeddingV2 ? 'module_host_with_custom_build_v2_embedding' : 'module_host_with_custom_build',
+          ),
+        ),
         hostAppDir,
       );
       copy(

dev/devicelab/bin/tasks/module_test.dart

@@ -13,9 +13,12 @@ import 'package:path/path.dart' as path;
 final String gradlew = Platform.isWindows ? 'gradlew.bat' : 'gradlew';
 final String gradlewExecutable = Platform.isWindows ? gradlew : './$gradlew';
 
+final bool useAndroidEmbeddingV2 = Platform.environment['ENABLE_ANDROID_EMBEDDING_V2'] == 'true';
+
 /// Tests that the Flutter module project template works and supports
 /// adding Flutter to an existing Android app.
 Future<void> main() async {
+  print(useAndroidEmbeddingV2);
   await task(() async {
 
     section('Find Java');
@@ -143,7 +146,14 @@ Future<void> main() async {
       final Directory hostApp = Directory(path.join(tempDir.path, 'hello_host_app'));
       mkdir(hostApp);
       recursiveCopy(
-        Directory(path.join(flutterDirectory.path, 'dev', 'integration_tests', 'android_host_app')),
+        Directory(
+          path.join(
+            flutterDirectory.path,
+            'dev',
+            'integration_tests',
+            useAndroidEmbeddingV2 ? 'android_host_app_v2_embedding' : 'android_host_app',
+          ),
+        ),
         hostApp,
       );
       copy(

dev/integration_tests/android_embedding_2/android/app/build.gradle

@@ -38,7 +38,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.example.android_embedding_2"
+        applicationId "com.example.android_embedding_v2_smoke_test"
         minSdkVersion 21
         targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()

dev/integration_tests/android_embedding_2/android/app/src/debug/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.android_embedding_2">
+    package="com.example.android_embedding_v2_smoke_test">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->

dev/integration_tests/android_embedding_2/android/app/src/main/kotlin/com/example/android_embedding_2/MainActivity.kt

-package com.example.android_embedding_2
+package com.example.android_embedding_v2_smoke_test
 
 import androidx.annotation.NonNull;
 import dev.flutter.plugins.GeneratedPluginRegistrant

dev/integration_tests/android_embedding_v2_smoke_test/android/app/build.gradle

+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'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.example.android_embedding_v2_smoke_test"
+        minSdkVersion 21
+        targetSdkVersion 28
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}

dev/integration_tests/android_embedding_2/android/app/src/profile/AndroidManifest.xml → dev/integration_tests/android_embedding_v2_smoke_test/android/app/src/debug/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.android_embedding_2">
+    package="com.example.android_embedding_v2_smoke_test">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->

dev/integration_tests/android_embedding_2/android/app/src/main/AndroidManifest.xml → dev/integration_tests/android_embedding_v2_smoke_test/android/app/src/main/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.android_embedding_2">
+    package="com.example.android_embedding_v2_smoke_test">
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide
@@ -7,7 +7,7 @@
          FlutterApplication and put your custom class here. -->
     <application
         android:name="io.flutter.app.FlutterApplication"
-        android:label="android_embedding_2">
+        android:label="android_embedding_v2_smoke_test">
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"

dev/integration_tests/android_embedding_v2_smoke_test/android/app/src/main/kotlin/com/example/android_embedding_v2_smoke_test/MainActivity.kt

+package com.example.android_embedding_v2_smoke_test
+
+import androidx.annotation.NonNull;
+import dev.flutter.plugins.GeneratedPluginRegistrant
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+
+class MainActivity: FlutterActivity() {
+  override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
+    GeneratedPluginRegistrant.registerWith(flutterEngine);
+  }
+}

dev/integration_tests/android_embedding_v2_smoke_test/android/app/src/profile/AndroidManifest.xml

+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android_embedding_v2_smoke_test">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

dev/integration_tests/android_embedding_2/pubspec.yaml → dev/integration_tests/android_embedding_v2_smoke_test/pubspec.yaml

-name: android_embedding_2
+name: android_embedding_v2_smoke_test
 description: A new Flutter project.
 
 # The following defines the version and build number for your application.

dev/integration_tests/android_host_app_v2_embedding/README.md

+# Android host app
+
+Android host app for a Flutter module created using
+```
+$ flutter create -t module hello
+```
+and placed in a sibling folder to (a clone of) the host app.
+Used by the `module_test.dart` device lab test.

dev/integration_tests/android_host_app_v2_embedding/app/build.gradle

+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+
+    compileOptions {
+        sourceCompatibility 1.8
+        targetCompatibility 1.8
+    }
+
+    defaultConfig {
+        applicationId "io.flutter.add2app"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+}
+
+dependencies {
+    implementation project(':flutter')
+}

dev/integration_tests/android_host_app_v2_embedding/app/src/main/AndroidManifest.xml

+<?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="io.flutter.add2app">
+
+    <application android:allowBackup="false"
+        tools:ignore="GoogleAppIndexingWarning,MissingApplicationIcon">
+        <activity android:name=".MainActivity" />
+    </application>
+</manifest>

dev/integration_tests/android_host_app_v2_embedding/app/src/main/java/io/flutter/add2app/MainActivity.java

+package io.flutter.add2app;
+
+import androidx.annotation.NonNull;
+import dev.flutter.plugins.GeneratedPluginRegistrant;
+import io.flutter.embedding.android.FlutterActivity;
+import io.flutter.embedding.engine.FlutterEngine;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
+    GeneratedPluginRegistrant.registerWith(flutterEngine);
+  }
+}

dev/integration_tests/android_host_app_v2_embedding/build.gradle

+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

dev/integration_tests/android_host_app_v2_embedding/gradle.properties

+org.gradle.jvmargs=-Xmx1536m
+android.useAndroidX=true
+android.enableJetifier=true

dev/integration_tests/android_host_app_v2_embedding/gradle/wrapper/gradle-wrapper.properties

+#Mon Jun 25 14:13:36 CEST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

dev/integration_tests/android_host_app_v2_embedding/settings.gradle

+include ':app'
+setBinding(new Binding([gradle: this]))
+evaluate(new File(settingsDir.parentFile, 'hello/.android/include_flutter.groovy'))

dev/integration_tests/android_module_host_with_custom_build_v2_embedding/app/src/main/java/io/flutter/addtoapp/MainActivity.java

+package io.flutter.add2app;
+
+import androidx.annotation.NonNull;
+import dev.flutter.plugins.GeneratedPluginRegistrant;
+import io.flutter.embedding.android.FlutterActivity;
+import io.flutter.embedding.engine.FlutterEngine;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
+    GeneratedPluginRegistrant.registerWith(flutterEngine);
+  }
+}

dev/integration_tests/module_host_with_custom_build_v2_embedding/README.md

+# Android host app
+
+Android host app for a Flutter module created using
+```
+$ flutter create -t module hello
+```
+and placed in a sibling folder to (a clone of) the host app.
+Used by the `module_host_with_custom_build_test.dart` device lab test.

dev/integration_tests/module_host_with_custom_build_v2_embedding/app/build.gradle

+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    compileOptions {
+        sourceCompatibility 1.8
+        targetCompatibility 1.8
+    }
+    defaultConfig {
+        applicationId "io.flutter.addtoapp"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    // Test build types.
+    buildTypes {
+        staging {
+            initWith debug
+            // This is required because the `:flutter` project doesn't define this custom build type.
+            // Without the fallback, the Android plugin will make Gradle exit with the following error:
+            // `Unable to find a matching variant of project :flutter`
+            matchingFallbacks = ['debug']
+        }
+        prod {
+            initWith release
+            matchingFallbacks = ['release']
+        }
+    }
+    // Test flavors.
+    flavorDimensions "version"
+    productFlavors {
+        demo {
+            dimension "version"
+        }
+    }
+}
+
+dependencies {
+    implementation project(':flutter')
+}

dev/integration_tests/module_host_with_custom_build_v2_embedding/app/src/main/AndroidManifest.xml

+<?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="io.flutter.addtoapp">
+
+    <application android:allowBackup="false"
+        tools:ignore="GoogleAppIndexingWarning,MissingApplicationIcon">
+        <activity android:name=".MainActivity" />
+    </application>
+</manifest>

dev/integration_tests/module_host_with_custom_build_v2_embedding/app/src/main/java/io/flutter/addtoapp/MainActivity.java

+package io.flutter.add2app;
+
+import androidx.annotation.NonNull;
+import dev.flutter.plugins.GeneratedPluginRegistrant;
+import io.flutter.embedding.android.FlutterActivity;
+import io.flutter.embedding.engine.FlutterEngine;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
+    GeneratedPluginRegistrant.registerWith(flutterEngine);
+  }
+}

dev/integration_tests/module_host_with_custom_build_v2_embedding/build.gradle

+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.2.1'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

dev/integration_tests/module_host_with_custom_build_v2_embedding/gradle.properties

+org.gradle.jvmargs=-Xmx1536m
+android.useAndroidX=true
+android.enableJetifier=true

dev/integration_tests/module_host_with_custom_build_v2_embedding/gradle/wrapper/gradle-wrapper.properties

+#Mon Jun 25 14:13:36 CEST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip

dev/integration_tests/module_host_with_custom_build_v2_embedding/settings.gradle

+include ':app'
+setBinding(new Binding([gradle: this]))
+evaluate(new File(settingsDir.parentFile, 'hello/.android/include_flutter.groovy'))

packages/flutter_tools/lib/src/commands/create.dart

@@ -623,7 +623,7 @@ To edit platform code in an IDE see https://flutter.dev/developing-packages/#edi
       'description': projectDescription,
       'dartSdk': '$flutterRoot/bin/cache/dart-sdk',
       'androidX': androidX,
-      'useNewAndroidEmbedding': featureFlags.isNewAndroidEmbeddingEnabled,
+      'useAndroidEmbeddingV2': featureFlags.isAndroidEmbeddingV2Enabled,
       'androidMinApiLevel': android.minApiLevel,
       'androidSdkVersion': android_sdk.minimumAndroidSdkVersion,
       'androidFlutterJar': '$flutterRoot/bin/cache/artifacts/engine/android-arm/flutter.jar',

packages/flutter_tools/lib/src/features.dart

@@ -36,8 +36,8 @@ class FeatureFlags {
   /// Whether flutter desktop for Windows is enabled.
   bool get isWindowsEnabled => isEnabled(flutterWindowsDesktopFeature);
 
-  /// Whether the new Android embedding is enabled.
-  bool get isNewAndroidEmbeddingEnabled => isEnabled(flutterNewAndroidEmbeddingFeature);
+  /// Whether the Android embedding V2 is enabled.
+  bool get isAndroidEmbeddingV2Enabled => isEnabled(flutterAndroidEmbeddingV2Feature);
 
   /// Whether a particular feature is enabled for the current channel.
   ///
@@ -71,7 +71,7 @@ const List<Feature> allFeatures = <Feature>[
   flutterMacOSDesktopFeature,
   flutterWindowsDesktopFeature,
   flutterBuildPluginAsAarFeature,
-  flutterNewAndroidEmbeddingFeature,
+  flutterAndroidEmbeddingV2Feature,
 ];
 
 /// The [Feature] for flutter web.
@@ -133,9 +133,10 @@ const Feature flutterBuildPluginAsAarFeature = Feature(
 );
 
 /// The [Feature] for generating projects using the new Android embedding.
-const Feature flutterNewAndroidEmbeddingFeature = Feature(
-  name: 'flutter create generates projects using the new Android embedding',
-  configSetting: 'enable-new-android-embedding',
+const Feature flutterAndroidEmbeddingV2Feature = Feature(
+  name: 'flutter create generates projects using the Android embedding V2',
+  environmentOverride: 'ENABLE_ANDROID_EMBEDDING_V2',
+  configSetting: 'enable-android-embedding-v2',
   master: FeatureChannelSetting(
     available: true,
     enabledByDefault: false,

packages/flutter_tools/lib/src/project.dart

@@ -617,7 +617,7 @@ class AndroidProject {
     _overwriteFromTemplate(fs.path.join(
       'module',
       'android',
-      featureFlags.isNewAndroidEmbeddingEnabled ? 'library_new_embedding' : 'library',
+      featureFlags.isAndroidEmbeddingV2Enabled ? 'library_new_embedding' : 'library',
     ), ephemeralDirectory);
     _overwriteFromTemplate(fs.path.join('module', 'android', 'gradle'), ephemeralDirectory);
     gradle.injectGradleWrapperIfNeeded(ephemeralDirectory);
@@ -631,7 +631,7 @@ class AndroidProject {
         'projectName': parent.manifest.appName,
         'androidIdentifier': parent.manifest.androidPackage,
         'androidX': usesAndroidX,
-        'useNewAndroidEmbedding': featureFlags.isNewAndroidEmbeddingEnabled,
+        'useAndroidEmbeddingV2': featureFlags.isAndroidEmbeddingV2Enabled,
       },
       printStatusWhenWriting: false,
       overwriteExisting: true,

packages/flutter_tools/templates/app/android-java.tmpl/app/src/main/java/androidIdentifier/MainActivity.java.tmpl

 package {{androidIdentifier}};
 
-{{#useNewAndroidEmbedding}}
+{{#useAndroidEmbeddingV2}}
 {{#androidX}}
 import androidx.annotation.NonNull;
 {{/androidX}}
@@ -17,8 +17,8 @@ public class MainActivity extends FlutterActivity {
     GeneratedPluginRegistrant.registerWith(flutterEngine);
   }
 }
-{{/useNewAndroidEmbedding}}
-{{^useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}
+{{^useAndroidEmbeddingV2}}
 import android.os.Bundle;
 import io.flutter.app.FlutterActivity;
 import io.flutter.plugins.GeneratedPluginRegistrant;
@@ -30,4 +30,4 @@ public class MainActivity extends FlutterActivity {
     GeneratedPluginRegistrant.registerWith(this);
   }
 }
-{{/useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}

packages/flutter_tools/templates/app/android-kotlin.tmpl/app/src/main/kotlin/androidIdentifier/MainActivity.kt.tmpl

 package {{androidIdentifier}}
 
-{{#useNewAndroidEmbedding}}
+{{#useAndroidEmbeddingV2}}
 {{#androidX}}
 import androidx.annotation.NonNull;
 {{/androidX}}
@@ -16,8 +16,8 @@ class MainActivity: FlutterActivity() {
     GeneratedPluginRegistrant.registerWith(flutterEngine);
   }
 }
-{{/useNewAndroidEmbedding}}
-{{^useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}
+{{^useAndroidEmbeddingV2}}
 import android.os.Bundle
 import io.flutter.app.FlutterActivity
 import io.flutter.plugins.GeneratedPluginRegistrant
@@ -28,4 +28,4 @@ class MainActivity: FlutterActivity() {
     GeneratedPluginRegistrant.registerWith(this)
   }
 }
-{{/useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}

packages/flutter_tools/templates/app/android.tmpl/app/src/main/AndroidManifest.xml.tmpl

@@ -16,7 +16,7 @@
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">
-            {{^useNewAndroidEmbedding}}
+            {{^useAndroidEmbeddingV2}}
             <!-- This keeps the window background of the activity showing
                  until Flutter renders its first frame. It can be removed if
                  there is no splash screen (such as the default splash screen
@@ -24,18 +24,18 @@
             <meta-data
                 android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
                 android:value="true" />
-            {{/useNewAndroidEmbedding}}
+            {{/useAndroidEmbeddingV2}}
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
-        {{#useNewAndroidEmbedding}}
+        {{#useAndroidEmbeddingV2}}
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
-        {{/useNewAndroidEmbedding}}
+        {{/useAndroidEmbeddingV2}}
     </application>
 </manifest>

packages/flutter_tools/templates/module/android/host_app_common/app.tmpl/src/main/AndroidManifest.xml.tmpl

@@ -36,12 +36,12 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
-        {{#useNewAndroidEmbedding}}
+        {{#useAndroidEmbeddingV2}}
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
-        {{/useNewAndroidEmbedding}}
+        {{/useAndroidEmbeddingV2}}
     </application>
 </manifest>

packages/flutter_tools/templates/module/android/host_app_common/app.tmpl/src/main/java/androidIdentifier/host/MainActivity.java.tmpl

 package {{androidIdentifier}}.host;
 
 import android.os.Bundle;
-{{#useNewAndroidEmbedding}}
+{{#useAndroidEmbeddingV2}}
 {{#androidX}}
 import androidx.annotation.NonNull;
 {{/androidX}}
@@ -18,8 +18,8 @@ public class MainActivity extends FlutterActivity {
     GeneratedPluginRegistrant.registerWith(flutterEngine);
   }
 }
-{{/useNewAndroidEmbedding}}
-{{^useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}
+{{^useAndroidEmbeddingV2}}
 import io.flutter.app.FlutterActivity;
 import io.flutter.plugins.GeneratedPluginRegistrant;
 
@@ -30,4 +30,4 @@ public class MainActivity extends FlutterActivity {
     GeneratedPluginRegistrant.registerWith(this);
   }
 }
-{{/useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}

packages/flutter_tools/templates/plugin/android-java.tmpl/src/main/java/androidIdentifier/pluginClass.java.tmpl

 package {{androidIdentifier}};
 
-{{#useNewAndroidEmbedding}}
+{{#useAndroidEmbeddingV2}}
 {{#androidX}}
 import androidx.annotation.NonNull;
 {{/androidX}}
@@ -29,9 +29,13 @@ public class {{pluginClass}} implements FlutterPlugin, MethodCallHandler {
       result.notImplemented();
     }
   }
+
+  @Override
+  public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
+  }
 }
-{{/useNewAndroidEmbedding}}
-{{^useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}
+{{^useAndroidEmbeddingV2}}
 import io.flutter.plugin.common.MethodCall;
 import io.flutter.plugin.common.MethodChannel;
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
@@ -55,4 +59,4 @@ public class {{pluginClass}} implements MethodCallHandler {
     }
   }
 }
-{{/useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}

packages/flutter_tools/templates/plugin/android-kotlin.tmpl/src/main/kotlin/androidIdentifier/pluginClass.kt.tmpl

 package {{androidIdentifier}}
 
-{{#useNewAndroidEmbedding}}
+{{#useAndroidEmbeddingV2}}
 {{#androidX}}
 import androidx.annotation.NonNull;
 {{/androidX}}
@@ -15,7 +15,7 @@ import io.flutter.plugin.common.MethodChannel.Result
 
 /** {{pluginClass}} */
 public class {{pluginClass}}: FlutterPlugin, MethodCallHandler {
-  override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPluginBinding) {
+  override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
     val channel = MethodChannel(flutterPluginBinding.getFlutterEngine().getDartExecutor(), "{{projectName}}")
     channel.setMethodCallHandler({{pluginClass}}());
   }
@@ -27,9 +27,12 @@ public class {{pluginClass}}: FlutterPlugin, MethodCallHandler {
       result.notImplemented()
     }
   }
+
+  override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
+  }
 }
-{{/useNewAndroidEmbedding}}
-{{^useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}
+{{^useAndroidEmbeddingV2}}
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler
@@ -53,4 +56,4 @@ class {{pluginClass}}: MethodCallHandler {
     }
   }
 }
-{{/useNewAndroidEmbedding}}
+{{/useAndroidEmbeddingV2}}

packages/flutter_tools/test/src/testbed.dart

@@ -699,7 +699,7 @@ class TestFeatureFlags implements FeatureFlags {
     this.isMacOSEnabled = false,
     this.isWebEnabled = false,
     this.isWindowsEnabled = false,
-    this.isNewAndroidEmbeddingEnabled = false,
+    this.isAndroidEmbeddingV2Enabled = false,
 });
 
   @override
@@ -715,7 +715,7 @@ class TestFeatureFlags implements FeatureFlags {
   final bool isWindowsEnabled;
 
   @override
-  final bool isNewAndroidEmbeddingEnabled;
+  final bool isAndroidEmbeddingV2Enabled;
 
   @override
   bool isEnabled(Feature feature) {
@@ -728,8 +728,8 @@ class TestFeatureFlags implements FeatureFlags {
         return isMacOSEnabled;
       case flutterWindowsDesktopFeature:
         return isWindowsEnabled;
-      case flutterNewAndroidEmbeddingFeature:
-        return isNewAndroidEmbeddingEnabled;
+      case flutterAndroidEmbeddingV2Feature:
+        return isAndroidEmbeddingV2Enabled;
     }
     return false;
   }