I've just copied the example of just_audio library and put in into my project, and then I'm doing a hot reload or pressing back, I'm getting an error
[VERBOSE-2:shell.cc(209)] Dart Error: Unhandled exception:
Bad state: You cannot close the subject while items are being added from addStream
#0 Subject.close (package:rxdart/src/subjects/subject.dart:152:7)
#1 AudioPlayer.dispose (package:just_audio/just_audio.dart:611:30)
<asynchronous suspension>
#2 _LessonPractiseScreenState.dispose (package:wbh/ui/pages/lesson/lesson_practise_screen.dart:90:13)
#3 StatefulElement.unmount (package:flutter/src/widgets/framework.dart:4773:12)
#4 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1935:13)
#5 _InactiveElements._unmount.<anonymous closure> (package:flutter/src/widgets/framework.dart:1933:7)
#6 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:4600:14)
#7 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1931:13)
#8 _InactiveElements._unmount.<anonymous closure> (package:flutter/src/widgets/framework.dart:1933:7)
#9 SingleChildRenderObjec<…>
The causing widget as I tested is:
Widget get _seekBar => StreamBuilder<Duration>(
stream: _player.durationStream,
builder: (context, snapshot) {
final duration = snapshot.data ?? Duration.zero;
return StreamBuilder<Duration>(
stream: _player.positionStream,
builder: (context, snapshot) {
if (snapshot.hasData) {
var position = snapshot.data ?? Duration.zero;
if (position > duration) {
position = duration;
}
return SeekBar(
duration: duration,
position: position,
onChanged: (newPosition) {
_player.seek(newPosition);
},
);
} else
return Container();
},
);
},
);
But I can't fix it by myself and have got no info on the net, so will appreciate any help.
This was reported as a bug via GitHub and a fix was rolled out soon after (see this issue for the discussion). Newer releases (>= 0.4.4) should resolve this issue.