[iOS] after stop() called or track finished, open() + play() does not work.

[sudachi808]

1. Call open()
2. Call play()
3. Track starts to play.
4. Call stop()
5. Track stops.
6. Call open()
7. Call play()
8. The track does not start to play.

My codes has something wrong❓🤔

import 'package:assets_audio_player/assets_audio_player.dart';
import 'package:flutter/material.dart';
import 'package:flutter/painting.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

  AssetsAudioPlayer get _player => AssetsAudioPlayer.withId('music');

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                RaisedButton(
                  child: Text('Open'),
                  onPressed: () {
                    print('_/_/ OPEN');
                    _player.open(
                      Audio('assets/sample.mp3'),
                      autoStart: false,
                    );
                  },
                ),
              ],
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                RaisedButton(
                  child: Text('Play'),
                  onPressed: () {
                    print('_/_/ PLAY');
                    _player.play();
                  },
                ),
                Padding(padding: EdgeInsets.all(4.0)),
                RaisedButton(
                  child: Text('Pause'),
                  onPressed: () {
                    print('_/_/ PAUSE');
                    _player.pause();
                  },
                ),
                Padding(padding: EdgeInsets.all(4.0)),
                RaisedButton(
                  child: Text('Stop'),
                  onPressed: () {
                    print('_/_/ STOP');
                    _player.stop();
                  },
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}

[ghost]

I'm having the same problem. My code works fine on my Android phone but on my iPhone I'm seeing the same behavior.

[ghost]

I'm looking at the Swift code for the iOS player and noticed that when stop is called it's setting the media player to nil which seems suspect.

https://github.com/florent37/Flutter-AssetsAudioPlayer/blob/master/darwin/Classes/Music.swift#L815

Note that when you pause() in the swift code the player doesn't get set to nil. I don't know the Swift API at all for this functionality so I may be off track here.

[siyukok]

same problem on iPhone

[ReversedHourglass]

Same problem here, only on iPhone, on Android everything seems to work as expected.

The problem is still relevant, to avoid it, i create a new AudioPlayer after stopping the one that was used just before.