Flutter插件just_audio示例错误，然后处理

如何解决Flutter插件just_audio示例错误，然后处理

我刚刚复制了just_audio库的示例并放入了我的项目中，然后我正在执行热重载或按回去，但出现错误

[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<…>

我测试的原因是：

Widget get _seekBar => StreamBuilder<Duration>(
        stream: _player.durationStream,builder: (context,snapshot) {
          final duration = snapshot.data ?? Duration.zero;
          return StreamBuilder<Duration>(
            stream: _player.positionStream,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();
            },);
        },);

但是我不能自己修复它，并且网上也没有任何信息，因此，我们将不胜感激。

解决方法

这已通过 GitHub 报告为错误，不久之后推出了修复程序（有关讨论，请参阅 this issue）。较新的版本 (>= 0.4.4) 应该可以解决这个问题。