修复练习和绘本播放音频问题

biao
1 parent 1ea75f04
Showing 2 changed files with 81 additions and 49 deletions
lib/pages/practice/bloc/topic_picture_bloc.dart
lib/pages/reading/bloc/reading_bloc.dart
@@ -24,16 +24,19 @@ part &#39;topic_picture_state.dart&#39;;
 enum VoicePlayState {
   ///未知
   unKnow,
+
   ///播放中
   playing,
+
   ///播放完成
   completed,
+
   ///播放终止
   stop
 }
  
-class TopicPictureBloc extends BaseSectionBloc<TopicPictureEvent, TopicPictureState> {
-
+class TopicPictureBloc
+    extends BaseSectionBloc<TopicPictureEvent, TopicPictureState> {
   final PageController pageController;
  
   final String courseLessonId;
@@ -68,7 +71,7 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
  
   bool get isVoicing => _isVoicing;
  
-  VoicePlayState get voicePlayState  => _voicePlayState;
+  VoicePlayState get voicePlayState => _voicePlayState;
  
   late MethodChannel methodChannel;
  
@@ -76,7 +79,8 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
  
   final BuildContext context;
  
-  TopicPictureBloc(this.context, this.pageController, this.courseLessonId) : super(TopicPictureInitial()) {
+  TopicPictureBloc(this.context, this.pageController, this.courseLessonId)
+      : super(TopicPictureInitial()) {
     on<CurrentPageIndexChangeEvent>(_pageControllerChange);
     on<VoicePlayStateChangeEvent>(_voicePlayStateChange);
     on<XSVoiceResultEvent>(_voiceXsResult);
@@ -90,7 +94,8 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
       //音频播放器
       audioPlayer = AudioPlayer();
       audioPlayer.onPlayerStateChanged.listen((event) async {
-        debugPrint('播放状态变化 _voicePlayState=$_voicePlayState event=$event _isResultSoundPlaying=$_isResultSoundPlaying _forbiddenWhenCorrect=$_forbiddenWhenCorrect');
+        debugPrint(
+            '播放状态变化 _voicePlayState=$_voicePlayState event=$event _isResultSoundPlaying=$_isResultSoundPlaying _forbiddenWhenCorrect=$_forbiddenWhenCorrect');
         if (_isResultSoundPlaying) {
           if (event != PlayerState.playing) {
             _isResultSoundPlaying = false;
@@ -131,28 +136,40 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
         }
       });
  
-      methodChannel = const MethodChannel('wow_english/sing_sound_method_channel');
+      methodChannel =
+          const MethodChannel('wow_english/sing_sound_method_channel');
       methodChannel.setMethodCallHandler((call) async {
-        if (call.method == 'voiceResult') {//评测结果
+        if (call.method == 'voiceResult') {
+          //评测结果
+          await audioPlayer.setAudioContext(AudioContext());
+          await audioPlayer.setBalance(0.0);
           add(XSVoiceResultEvent(call.arguments));
           return;
         }
  
-        if (call.method == 'voiceStart') {//评测开始
+        if (call.method == 'voiceStart') {
+          //评测开始
           if (kDebugMode) {
             print('评测开始');
           }
           return;
         }
  
-        if (call.method == 'voiceEnd') {//评测结束
+        if (call.method == 'voiceEnd') {
+          await audioPlayer.setAudioContext(AudioContext());
+          await audioPlayer.setBalance(0.0);
+          //评测结束
           if (kDebugMode) {
             print('评测结束');
           }
           return;
         }
  
-        if (call.method == 'voiceFail') {//评测失败
+        if (call.method == 'voiceFail') {
+          //评测失败
+          await audioPlayer.setAudioContext(AudioContext());
+          await audioPlayer.setBalance(0.0);
+
           EasyLoading.showToast('评测失败');
           return;
         }
@@ -161,7 +178,7 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   }
  
   @override
-  Future<void> close(){
+  Future<void> close() {
     pageController.dispose();
     audioPlayer.release();
     audioPlayer.dispose();
@@ -172,7 +189,8 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   }
  
   ///请求数据
-  void _requestData(RequestDataEvent event,Emitter<TopicPictureState> emitter) async {
+  void _requestData(
+      RequestDataEvent event, Emitter<TopicPictureState> emitter) async {
     try {
       await loading(() async {
         _entity = await ListenDao.process(courseLessonId);
@@ -180,13 +198,14 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
       });
     } catch (e) {
       if (e is ApiException) {
-        showToast(e.message??'请求失败,请检查网络连接');
+        showToast(e.message ?? '请求失败,请检查网络连接');
       }
     }
   }
  
   ///页面切换
-  void _pageControllerChange(CurrentPageIndexChangeEvent event,Emitter<TopicPictureState> emitter) async {
+  void _pageControllerChange(CurrentPageIndexChangeEvent event,
+      Emitter<TopicPictureState> emitter) async {
     await closePlayerResource();
     debugPrint('翻页 $_currentPage->${event.pageIndex}');
     if (_currentPage == _entity?.topics?.length) {
@@ -196,7 +215,7 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
     final topics = _entity?.topics?[_currentPage];
     if (topics?.type != 3 && topics?.type != 4) {
       if (topics?.audioUrl != null) {
-        final urlStr = topics?.audioUrl??'';
+        final urlStr = topics?.audioUrl ?? '';
         if (urlStr.isNotEmpty) {
           debugPrint(urlStr);
           await audioPlayer.play(UrlSource(urlStr));
@@ -208,13 +227,15 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   }
  
   ///选择
-  void _selectItemLoad(SelectItemEvent event,Emitter<TopicPictureState> emitter) async {
+  void _selectItemLoad(
+      SelectItemEvent event, Emitter<TopicPictureState> emitter) async {
     if (_forbiddenWhenCorrect) {
       return;
     }
     _selectItem = event.selectIndex;
     CourseProcessTopics? topics = _entity?.topics?[_currentPage];
-    CourseProcessTopicsTopicAnswerList? answerList = topics?.topicAnswerList?[_selectItem];
+    CourseProcessTopicsTopicAnswerList? answerList =
+        topics?.topicAnswerList?[_selectItem];
     if (answerList?.correct == 0) {
       _playResultSound(false);
       // showToast('继续加油哦',duration: const Duration(seconds: 2));
@@ -226,35 +247,32 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   }
  
   ///初始化SDK
-  _initVoiceSdk(XSVoiceInitEvent event,Emitter<TopicPictureState> emitter) async {
-    methodChannel.invokeMethod('initVoiceSdk',event.data);
+  _initVoiceSdk(
+      XSVoiceInitEvent event, Emitter<TopicPictureState> emitter) async {
+    methodChannel.invokeMethod('initVoiceSdk', event.data);
   }
  
   ///先声测试
-  void _voiceXsStart(XSVoiceStartEvent event,Emitter<TopicPictureState> emitter) async {
+  void _voiceXsStart(
+      XSVoiceStartEvent event, Emitter<TopicPictureState> emitter) async {
     await audioPlayer.stop();
     // 调用封装好的权限检查和请求方法
-    bool result = await permissionCheckAndRequest(
-        context,
-        Permission.microphone,
-        "录音"
-    );
+    bool result =
+        await permissionCheckAndRequest(context, Permission.microphone, "录音");
     if (result) {
-      methodChannel.invokeMethod(
-          'startVoice',
-          {
-            'word': event.testWord,
-            'type': event.type,
-            'userId': event.userId.toString()
-          }
-      );
+      methodChannel.invokeMethod('startVoice', {
+        'word': event.testWord,
+        'type': event.type,
+        'userId': event.userId.toString()
+      });
       _isVoicing = true;
       emitter(XSVoiceTestState());
     }
   }
  
   ///终止评测
-  void _voiceXsStop(XSVoiceStopEvent event,Emitter<TopicPictureState> emitter) async {
+  void _voiceXsStop(
+      XSVoiceStopEvent event, Emitter<TopicPictureState> emitter) async {
     methodChannel.invokeMethod('stopVoice');
   }
  
@@ -264,11 +282,12 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   }
  
   ///先声评测结果
-  void _voiceXsResult(XSVoiceResultEvent event,Emitter<TopicPictureState> emitter) async {
+  void _voiceXsResult(
+      XSVoiceResultEvent event, Emitter<TopicPictureState> emitter) async {
     final Map args = event.message as Map;
     final result = args['result'] as Map;
     final overall = result['overall'].toString();
-    showToast('测评成功,分数是$overall',duration: const Duration(seconds: 5));
+    showToast('测评成功,分数是$overall', duration: const Duration(seconds: 5));
     _isVoicing = false;
     emitter(XSVoiceTestState());
     if (isLastPage()) {
@@ -277,20 +296,23 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   }
  
   // 暂时没用上
-  void _voicePlayStateChange(VoicePlayStateChangeEvent event,Emitter<TopicPictureState> emitter) async {
+  void _voicePlayStateChange(VoicePlayStateChangeEvent event,
+      Emitter<TopicPictureState> emitter) async {
     emitter(VoicePlayStateChange());
   }
  
   // 题目音频播放
-  void _questionVoicePlay(VoicePlayEvent event,Emitter<TopicPictureState> emitter) async {
+  void _questionVoicePlay(
+      VoicePlayEvent event, Emitter<TopicPictureState> emitter) async {
     if (_forbiddenWhenCorrect) {
       return;
     }
     _forbiddenWhenCorrect = false;
     await closePlayerResource();
     final topics = _entity?.topics?[_currentPage];
-    final urlStr = topics?.audioUrl??'';
-    await audioPlayer.play(UrlSource(urlStr));
+    final urlStr = topics?.audioUrl ?? '';
+    await audioPlayer.play(UrlSource(urlStr),
+        balance: 0.0, ctx: AudioContext());
   }
  
   Future<void> closePlayerResource() async {
@@ -302,7 +324,8 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   ///播放选择结果音效
   void _playResultSound(bool isCorrect) async {
     // await audioPlayer.stop();
-    if (audioPlayer.state == PlayerState.playing && _isResultSoundPlaying == false) {
+    if (audioPlayer.state == PlayerState.playing &&
+        _isResultSoundPlaying == false) {
       _voicePlayState = VoicePlayState.stop;
     }
     debugPrint("_playResultSound isCorrect=$isCorrect");
@@ -324,13 +347,12 @@ class TopicPictureBloc extends BaseSectionBloc&lt;TopicPictureEvent, TopicPictureSt
   void showStepPage() {
     ///如果最后一页是语音问答题，评测完后自动翻页
     sectionComplete(() {
-      popPage(
-          data:{
-            'currentStep':currentPage,
-            'courseLessonId':courseLessonId,
-            'isCompleted': true,
-            'nextSection': true
-          });
+      popPage(data: {
+        'currentStep': currentPage,
+        'courseLessonId': courseLessonId,
+        'isCompleted': true,
+        'nextSection': true
+      });
     }, againSectionTap: () {
       pageController.jumpToPage(0);
     });
@@ -130,6 +130,9 @@ class ReadingPageBloc
             "setMethodCallHandler method=${call.method} arguments=${call.arguments}");
         if (call.method == 'voiceResult') {
           //评测结果
+          await audioPlayer.setAudioContext(AudioContext());
+          await audioPlayer.setBalance(0.0);
+
           add(XSVoiceResultEvent(call.arguments));
           return;
         }
@@ -149,6 +152,9 @@ class ReadingPageBloc
           if (kDebugMode) {
             print(call.method == 'voiceEnd' ? '评测结束' : '评测取消');
           }
+          await audioPlayer.setAudioContext(AudioContext());
+          await audioPlayer.setBalance(0.0);
+
           _isRecording = false;
           add(OnXSVoiceStateChangeEvent());
           return;
@@ -157,6 +163,9 @@ class ReadingPageBloc
         if (call.method == 'voiceFail') {
           //评测失败
           _isRecording = false;
+          await audioPlayer.setAudioContext(AudioContext());
+          await audioPlayer.setBalance(0.0);
+
           EasyLoading.showToast('评测失败');
           return;
         }
@@ -276,7 +285,8 @@ class ReadingPageBloc
  
   Future<void> _playAudio(String? audioUrl) async {
     if (audioUrl!.isNotEmpty) {
-      await audioPlayer.play(UrlSource(audioUrl));
+      await audioPlayer.play(UrlSource(audioUrl),
+          balance: 0.0, ctx: AudioContext());
     }
   }