Bug 1585661 - Add messaging examples to Android Studio. r=agi

/build

buildDir "${topobjdir}/gradle/build/mobile/android/examples/messaging_example"

apply plugin: 'com.android.application'

apply from: "${topsrcdir}/mobile/android/gradle/product_flavors.gradle"

android {

    compileSdkVersion project.ext.compileSdkVersion

    compileOptions {

        sourceCompatibility JavaVersion.VERSION_1_8

        targetCompatibility JavaVersion.VERSION_1_8

    }

    defaultConfig {

        applicationId "org.mozilla.geckoview.example.messaging"

        targetSdkVersion project.ext.targetSdkVersion

        minSdkVersion project.ext.minSdkVersion

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

        }

    }

    // By default the android plugins ignores folders that start with `_`, but

    // we need those in web extensions.

    // See also:

    //  - https://issuetracker.google.com/issues/36911326

    //  - https://stackoverflow.com/questions/9206117/how-to-workaround-autoomitting-fiiles-folders-starting-with-underscore-in

    aaptOptions {

        ignoreAssetsPattern  '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'

    }

    project.configureProductFlavors.delegate = it

    project.configureProductFlavors()

}

dependencies {

    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation "com.android.support:support-annotations:$support_library_version"

    implementation "com.android.support:appcompat-v7:$support_library_version"

    implementation 'com.android.support.constraint:constraint-layout:1.1.3'

    testImplementation 'junit:junit:4.12'

    androidTestImplementation 'com.android.support.test:runner:1.0.2'

    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    implementation project(path: ':geckoview')

}

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="org.mozilla.geckoview.example.messaging">

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

 No newline at end of file

{

  "manifest_version": 2,

  "name": "messaging",

  "version": "1.0",

  "description": "Example messaging web extension.",

  "content_scripts": [

    {

      "matches": ["*://*.twitter.com/*"],

      "js": ["messaging.js"]

    }

  ],

  "permissions": [

    "nativeMessaging",

    "geckoViewAddons"

  ]

}

let manifest = document.querySelector("head > link[rel=manifest]");

if (manifest) {

  fetch(manifest.href)

    .then(response => response.json())

    .then(json => {

      let message = { type: "WPAManifest", manifest: json };

      browser.runtime.sendNativeMessage("browser", message);

    });

}