audio_session 0.1.0-nullsafety.3

Sets the iOS audio session category and Android audio attributes for your app, and manages your app's audio focus, mixing and ducking behaviour.

example/lib/main.dart

//import 'dart:math';

import 'package:audio_session/audio_session.dart';
import 'package:flutter/material.dart';
//import 'package:just_audio/just_audio.dart' as ja;

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  //final _player = ja.AudioPlayer();

  @override
  void initState() {
    super.initState();
    AudioSession.instance.then((audioSession) async {
      // This line configures the app's audio session, indicating to the OS the
      // type of audio we intend to play. Using the "speech" recipe rather than
      // "music" since we are playing a podcast.
      await audioSession.configure(AudioSessionConfiguration.speech());
      // Listen to audio interruptions and pause or duck as appropriate.
      _handleInterruptions(audioSession);
      // Use another plugin to load audio to play.
      //await _player.setUrl(
      //    "https://s3.amazonaws.com/scifri-episodes/scifri20181123-episode.mp3");
    });
  }

  void _handleInterruptions(AudioSession audioSession) {
    //bool playInterrupted = false;
    audioSession.becomingNoisyEventStream.listen((_) {
      print('PAUSE');
      //_player.pause();
    });
    //_player.playingStream.listen((playing) {
    //  playInterrupted = false;
    //  // Temporary as the just_audio 0.3.4 doesn't activate the audio session.
    //  if (playing) {
    //    audioSession.setActive(true);
    //  }
    //});
    audioSession.interruptionEventStream.listen((event) {
      print('interruption begin: ${event.begin}');
      print('interruption type: ${event.type}');
      //if (event.begin) {
      //  switch (event.type) {
      //    case AudioInterruptionType.duck:
      //      if (audioSession.androidAudioAttributes.usage ==
      //          AndroidAudioUsage.game) {
      //        _player.setVolume(_player.volume / 2);
      //      }
      //      playInterrupted = false;
      //      break;
      //    case AudioInterruptionType.pause:
      //    case AudioInterruptionType.unknown:
      //      if (_player.playing) {
      //        _player.pause();
      //        // Although pause is async and sets playInterrupted = false,
      //        // this is done in the sync portion.
      //        playInterrupted = true;
      //      }
      //      break;
      //  }
      //} else {
      //  switch (event.type) {
      //    case AudioInterruptionType.duck:
      //      _player.setVolume(min(1.0, _player.volume * 2));
      //      playInterrupted = false;
      //      break;
      //    case AudioInterruptionType.pause:
      //      if (playInterrupted) _player.play();
      //      playInterrupted = false;
      //      break;
      //    case AudioInterruptionType.unknown:
      //      playInterrupted = false;
      //      break;
      //  }
      //}
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('audio_session example'),
        ),
        body: Center(
          child: Placeholder(),
          //child: StreamBuilder<ja.PlayerState>(
          //  stream: _player.playerStateStream,
          //  builder: (context, snapshot) {
          //    final playerState = snapshot.data;
          //    if (playerState?.processingState != ja.ProcessingState.ready) {
          //      return Container(
          //        margin: EdgeInsets.all(8.0),
          //        width: 64.0,
          //        height: 64.0,
          //        child: CircularProgressIndicator(),
          //      );
          //    } else if (playerState?.playing == true) {
          //      return IconButton(
          //        icon: Icon(Icons.pause),
          //        iconSize: 64.0,
          //        onPressed: _player.pause,
          //      );
          //    } else {
          //      return IconButton(
          //        icon: Icon(Icons.play_arrow),
          //        iconSize: 64.0,
          //        onPressed: _player.play,
          //      );
          //    }
          //  },
          //),
        ),
      ),
    );
  }
}