feat(android): create my_plugin_android (#4)

.github/workflows/my_plugin_android.yaml

@@ -0,0 +1,21 @@
+name: my_plugin_android
+
+on:
+  pull_request:
+    paths:
+      - ".github/workflows/my_plugin_android.yaml"
+      - "src/my_plugin_android/**"
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/my_plugin_android.yaml"
+      - "src/my_plugin_android/**"
+
+jobs:
+  build:
+    uses: VeryGoodOpenSource/very_good_workflows/.github/workflows/flutter_package.yml@v1
+    with:
+      flutter_channel: stable
+      flutter_version: 2.10.1
+      working_directory: src/my_plugin_android

src/my_plugin_android/CHANGELOG.md

@@ -0,0 +1,3 @@
+# 0.1.0+1
+
+- Initial release of this plugin.

src/my_plugin_android/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Very Good Ventures
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

src/my_plugin_android/README.md

@@ -0,0 +1,14 @@
+# my_plugin_android
+
+[![style: very good analysis][very_good_analysis_badge]][very_good_analysis_link]
+
+The Android implementation of `my_plugin`.
+
+## Usage
+
+This package is [endorsed][endorsed_link], which means you can simply use `my_plugin`
+normally. This package will be automatically included in your app when you do.
+
+[endorsed_link]: https://flutter.dev/docs/development/packages-and-plugins/developing-packages#endorsed-federated-plugin
+[very_good_analysis_badge]: https://img.shields.io/badge/style-very_good_analysis-B22C89.svg
+[very_good_analysis_link]: https://pub.dev/packages/very_good_analysis

src/my_plugin_android/android/.gitignore

@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

src/my_plugin_android/android/build.gradle

@@ -0,0 +1,50 @@
+group 'com.example.my_plugin'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    ext.kotlin_version = '1.3.50'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion 30
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    defaultConfig {
+        minSdkVersion 16
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}

src/my_plugin_android/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'my_plugin_android'

src/my_plugin_android/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.example.my_plugin">
+</manifest>

src/my_plugin_android/android/src/main/kotlin/com/example/my_plugin/MyPluginPlugin.kt

@@ -0,0 +1,34 @@
+package com.example.my_plugin
+
+import android.content.Context
+import androidx.annotation.NonNull
+
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import io.flutter.plugin.common.MethodChannel.Result
+
+class MyPluginPlugin : FlutterPlugin, MethodCallHandler {
+    private lateinit var channel: MethodChannel
+    private var context: Context? = null
+
+    override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
+        channel = MethodChannel(flutterPluginBinding.binaryMessenger, "my_plugin_android")
+        channel.setMethodCallHandler(this)
+        context = flutterPluginBinding.applicationContext
+    }
+
+    override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: Result) {
+        if (call.method == "getPlatformName") {
+            result.success("Android")            
+        } else {
+            result.notImplemented()
+        }
+    }
+
+    override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
+        channel.setMethodCallHandler(null)
+        context = null
+    }
+}

src/my_plugin_android/lib/my_plugin_android.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:my_plugin_platform_interface/my_plugin_platform_interface.dart';
+
+/// The Android implementation of [MyPluginPlatform].
+class MyPluginAndroid extends MyPluginPlatform {
+  /// The method channel used to interact with the native platform.
+  @visibleForTesting
+  final methodChannel = const MethodChannel('my_plugin_android');
+
+  /// Registers this class as the default instance of [MyPluginPlatform]
+  static void registerWith() {
+    MyPluginPlatform.instance = MyPluginAndroid();
+  }
+
+  @override
+  Future<String?> getPlatformName() {
+    return methodChannel.invokeMethod<String>('getPlatformName');
+  }
+}

src/my_plugin_android/pubspec.yaml

@@ -0,0 +1,29 @@
+name: my_plugin_android
+description: Android implementation of the my_plugin plugin
+version: 0.1.0+1
+publish_to: none
+
+environment:
+  sdk: ">=2.14.0 <3.0.0"
+  flutter: ">=2.5.0"
+
+flutter:
+  plugin:
+    implements: my_plugin
+    platforms:
+      android:
+        package: com.example.my_plugin
+        pluginClass: MyPluginPlugin
+        dartPluginClass: MyPluginAndroid
+
+dependencies:
+  flutter:
+    sdk: flutter
+  my_plugin_platform_interface:
+    path: ../my_plugin_platform_interface
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  plugin_platform_interface: ^2.0.0
+  very_good_analysis: ^2.4.0

src/my_plugin_android/test/my_plugin_android_test.dart

@@ -0,0 +1,44 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:my_plugin_android/my_plugin_android.dart';
+import 'package:my_plugin_platform_interface/my_plugin_platform_interface.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  group('MyPluginAndroid', () {
+    const kPlatformName = 'Android';
+    late MyPluginAndroid myPlugin;
+    late List<MethodCall> log;
+
+    setUp(() async {
+      myPlugin = MyPluginAndroid();
+
+      log = <MethodCall>[];
+      TestDefaultBinaryMessengerBinding.instance!.defaultBinaryMessenger
+          .setMockMethodCallHandler(myPlugin.methodChannel, (methodCall) async {
+        log.add(methodCall);
+        switch (methodCall.method) {
+          case 'getPlatformName':
+            return kPlatformName;
+          default:
+            return null;
+        }
+      });
+    });
+
+    test('can be registered', () {
+      MyPluginAndroid.registerWith();
+      expect(MyPluginPlatform.instance, isA<MyPluginAndroid>());
+    });
+
+    test('getPlatformName returns correct name', () async {
+      final name = await myPlugin.getPlatformName();
+      expect(
+        log,
+        <Matcher>[isMethodCall('getPlatformName', arguments: null)],
+      );
+      expect(name, equals(kPlatformName));
+    });
+  });
+}