First commit of android_intent plugin. (flutter#99)

* First commit of android_intent plugin.

* Comments and formatting fixes

* Add back the iOS dummy code for android_intent as per discussion on github.com/flutter/flutter/issues/10530.

* Review comments

* missing meta dependency. Caught by pub publish --dryrun

packages/android_intent/.gitignore

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+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock

packages/android_intent/CHANGELOG.md

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+## 0.0.1
+
+* Initial release

packages/android_intent/LICENSE

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/android_intent/README.md

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+# Android Intent Plugin for Flutter
+
+This plugin allows Flutter apps to launch arbitrary intents when the platform
+is Android. If the plugin is invoked on iOS, it will crash your app. In checked
+mode, we assert that the platform should be Android.
+
+Use it by specifying action, category, data and extra arguments for the intent.
+It does not support returning the result of the launched activity. Sample usage:
+
+```
+if (platform.isAndroid) {
+  AndroidIntent intent = new AndroidIntent(
+      action: 'action_view',
+      data: 'https://play.google.com/store/apps/details?'
+          'id=com.google.android.apps.myapp',
+      arguments: {'authAccount': currentUserEmail},
+  );
+  await intent.launch();
+}
+```
+
+See documentation on the AndroidIntent class for details on each parameter.
+
+Action parameter can be any action including a custom class name to be invoked.
+If a standard android action is required, the recommendation is to add support
+for it in the plugin and use an action constant to refer to it. For instance:
+
+`'action_view'` translates to `android.os.Intent.ACTION_VIEW`
+
+Feel free to add support for additional Android intents.
+
+> Note that a similar method does not currently exist for iOS. Instead, the
+system plugin ([UrlLauncher](https://docs.flutter.io/flutter/services/UrlLauncher-class.html))
+can be used for deep linking. UrlLauncher can also be used for creating
+ACTION_VIEW intents for Android, however this intent plugin also allows
+clients to set extra parameters for the intent.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](http://flutter.io/).
+
+For help on editing plugin code, view the [documentation](https://flutter.io/platform-plugins/#edit-code).

packages/android_intent/android/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+
+/gradle
+/gradlew
+/gradlew.bat

packages/android_intent/android/build.gradle

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+group 'io.flutter.plugins.androidintent'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.3.0'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion '25.0.3'
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}

packages/android_intent/android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M

packages/android_intent/android/settings.gradle

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+rootProject.name = 'android_intent'

packages/android_intent/android/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="io.flutter.plugins.androidintent"
+  android:versionCode="1"
+  android:versionName="0.0.1">
+
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="21" />
+</manifest>

packages/android_intent/android/src/main/java/io/flutter/plugins/androidintent/AndroidIntentPlugin.java

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package io.flutter.plugins.androidintent;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+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;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+import java.util.Map;
+
+/** AndroidIntentPlugin */
+@SuppressWarnings("unchecked")
+public class AndroidIntentPlugin implements MethodCallHandler {
+  private final Context context;
+
+  /** Plugin registration. */
+  public static void registerWith(Registrar registrar) {
+    final MethodChannel channel =
+        new MethodChannel(registrar.messenger(), "plugins.flutter.io/android_intent");
+    channel.setMethodCallHandler(new AndroidIntentPlugin(registrar.activity()));
+  }
+
+  private AndroidIntentPlugin(Activity activity) {
+    this.context = activity;
+  }
+
+  private String convertAction(String action) {
+    switch (action) {
+      case "action_view":
+        return Intent.ACTION_VIEW;
+      case "action_voice":
+        return Intent.ACTION_VOICE_COMMAND;
+      default:
+        return action;
+    }
+  }
+
+  private Bundle convertArguments(Map<String, ?> arguments) {
+    Bundle bundle = new Bundle();
+    for (String key : arguments.keySet()) {
+      Object value = arguments.get(key);
+      if (value instanceof Integer) {
+        bundle.putInt(key, (Integer) value);
+      } else if (value instanceof String) {
+        bundle.putString(key, (String) value);
+      } else if (value instanceof Boolean) {
+        bundle.putBoolean(key, (Boolean) value);
+      } else if (value instanceof Double) {
+        bundle.putDouble(key, (Double) value);
+      } else if (value instanceof Long) {
+        bundle.putLong(key, (Long) value);
+      } else {
+        throw new UnsupportedOperationException("Unsupported type " + value);
+      }
+    }
+    return bundle;
+  }
+
+  @Override
+  public void onMethodCall(MethodCall call, Result result) {
+    String action = convertAction((String) call.argument("action"));
+    // Build intent
+    Intent intent = new Intent(action);
+    if (call.argument("category") != null) {
+      intent.addCategory((String) call.argument("category"));
+    }
+    if (call.argument("data") != null) {
+      intent.setData(Uri.parse((String) call.argument("data")));
+    }
+    if (call.argument("arguments") != null) {
+      intent.putExtras(convertArguments((Map) call.argument("arguments")));
+    }
+    Log.i("android_intent plugin", "Sending intent " + intent);
+    context.startActivity(intent);
+    result.success(null);
+  }
+}

packages/android_intent/android_intent.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="FLUTTER_MODULE_TYPE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.idea" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+      <excludeFolder url="file://$MODULE_DIR$/packages" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+    <orderEntry type="library" name="Dart SDK" level="project" />
+  </component>
+</module>

packages/android_intent/android_intent_android.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/android">
+      <sourceFolder url="file://$MODULE_DIR$/android/app/src/main/java" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Flutter for Android" level="project" />
+  </component>
+</module>

packages/android_intent/example/.gitignore

@@ -0,0 +1,10 @@
+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock
+.flutter-plugins

packages/android_intent/example/README.md

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+# android_intent_example
+
+Demonstrates how to use the android_intent plugin.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](http://flutter.io/).

packages/android_intent/example/android.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/android">
+      <sourceFolder url="file://$MODULE_DIR$/android/app/src/main/java" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Flutter for Android" level="project" />
+  </component>
+</module>

packages/android_intent/example/android/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+GeneratedPluginRegistrant.java
+
+/gradle
+/gradlew
+/gradlew.bat

packages/android_intent/example/android/app/build.gradle

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+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withInputStream { stream ->
+        localProperties.load(stream)
+    }
+}
+
+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.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion '25.0.3'
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "io.flutter.plugins.androidintentexample"
+    }
+
+    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 {
+    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    androidTestCompile 'com.android.support.test:runner:0.5'
+    androidTestCompile 'com.android.support.test:rules:0.5'
+}

packages/android_intent/example/android/app/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.flutter.plugins.androidintentexample"
+    android:versionCode="1"
+    android:versionName="0.0.1">
+
+    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="21" />
+
+    <!-- The INTERNET permission is required for development. Specifically,
+         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"/>
+
+    <!-- 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
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application android:name="io.flutter.app.FlutterApplication" android:label="android_intent_example" android:icon="@mipmap/ic_launcher">
+        <activity android:name=".MainActivity"
+                  android:launchMode="singleTop"
+                  android:theme="@android:style/Theme.Black.NoTitleBar"
+                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
+                  android:hardwareAccelerated="true"
+                  android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>