flutter_audio_service 0.3.1

A plugin, that allows audio playback as Android service, uses ExoPlayer and implements MediaSession API.

flutter_audio_service

A Flutter plugin by Tailosive Development (@TailosiveDev) created by Karol Wąsowski (@KarolWasowski) Licensed under the BSD License

This package was first released as flutter_audio_as_service, but was later renamed because of issues with pub.dev

The plugin is Android only as of now.

1. Before you begin

Add this permission to AndroidManifest.xml:

<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>

Make sure your app uses Java8 by adding this code into your app-level build.gradle into the android section:

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

Enable androidx support in your app.

Add the service to AndroidMainfest.xml

<manifest>
  ...
  <application>
    ...
    ...
    <service 
      android:name="net.tailosive.flutter_audio_as_service.AudioService"/>
  </application>
</manifest>

2. Usage

To start playback initialize the player with the following:

AudioInfo info = AudioInfo(
  "Title",
  "Author",
  audioUrl,
  coverUrl,
  drawableAppIcon
)

FlutterAudioAsService.init(info);

audioUrl and coverUrl are strings - could be both urls or a file directories (file:///)

How to properly set appIcon

• put the desired .png image into android/src/main/res/drawable/
• if your resource is app_icon.png then set the appIcon value to be "app_icon"
• the value can be null

If you wish you can set event listeners as follows:

AudioPlayerListener listener = AudioPlayerListener(
  onPlayerStateChanged: (PlayerState playerState) {
    print(playerState);
  },
  onPlayerPositionChanged: (Duration playerPosition) {
    print(playerPosition.toString());
  },
  onPlayerCompleted: () {
    print("Player completed");
  }
);

FlutterAudioAsService.setListeners(listener);

Playback is controlled with the following functions:

FlutterAudioAsService.pause();
FlutterAudioAsService.resume();

During playback you may also seek with:

FlutterAudioAsService.seekBy(Duration(seconds: 30));
FlutterAudioAsService.seekTo(Duration(minutes: 15, seconds: 47));

To stop playback and destroy the service run:

FlutterAudioAsService.stop();

3. Features

The plugin supports audio playback as an Android service with caching functionality included. It uses ExoPlayer with MediaSession API and rich notification controls.