加载soundPool文件后的应用程序崩溃482次

我想知道为什么我的应用程序在加载和播放完整的482次声音文件后崩溃？在482：E单击（列表视图）加载和播放MP3音效档以下happends：加载soundPool文件后的应用程序崩溃482次

10-20 01:28:38.454: V/MediaPlayer(14307): decode(1018, 58494525, 47481) 
10-20 01:28:40.424: I/System.out(14307): groupos i metoden getGroupId: 71 
10-20 01:28:40.489: I/System.out(14307): groupos i metoden getGroupId: 71 
10-20 01:28:40.489: V/SoundPoolThread(14307): Got message m=2, mData=480 
10-20 01:28:40.489: V/MediaPlayer(14307): decode(1020, 58494525, 47481) 
10-20 01:28:42.359: I/System.out(14307): groupos i metoden getGroupId: 71 
10-20 01:28:42.424: I/System.out(14307): groupos i metoden getGroupId: 71 
10-20 01:28:42.424: V/SoundPoolThread(14307): Got message m=2, mData=481 
10-20 01:28:42.424: V/MediaPlayer(14307): decode(1022, 58494525, 47481) 
10-20 01:28:44.244: I/System.out(14307): groupos i metoden getGroupId: 71 
10-20 01:28:44.314: I/System.out(14307): groupos i metoden getGroupId: 71 
10-20 01:28:44.314: V/SoundPoolThread(14307): Got message m=2, mData=482 
10-20 01:28:44.314: V/MediaPlayer(14307): decode(-1, 58494525, 47481) 
10-20 01:28:44.314: E/SoundPool(14307): Unable to load sample: (null) 
10-20 01:28:44.324: W/SoundPool(14307): Sample was not loaded. Waiting for 30ms. 
10-20 01:28:44.354: W/SoundPool(14307): Sample was not loaded. Waiting for 30ms. 
10-20 01:28:44.384: W/SoundPool(14307): Sample was not loaded. Waiting for 30ms. 
10-20 01:28:44.414: W/SoundPool(14307): Sample was not loaded. Waiting for 30ms. 
10-20 01:28:44.444: W/SoundPool(14307): Sample was not loaded. Waiting for 30ms. 
10-20 01:28:44.474: E/SoundPool(14307): sample 482 not READY

而且堆栈跟踪

10-20 01:40:03.639: D/AndroidRuntime(22802): Shutting down VM 
    10-20 01:40:03.639: W/dalvikvm(22802): threadid=1: thread exiting with uncaught  exception (group=0x40eb22a0) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): FATAL EXCEPTION: main 
    10-20 01:40:03.664: E/AndroidRuntime(22802):  android.content.res.Resources$NotFoundException: File res/drawable-ldpi/sam.mp3 from drawable resource ID #0x7f0203af 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at  android.content.res.Resources.openRawResourceFd(Resources.java:994) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.media.SoundPool.load(SoundPool.java:191) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at com.example.thai.PhraseActivity.loadSound(PhraseActivity.java:255) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at com.example.thai.PhraseActivity.access$3(PhraseActivity.java:252) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at com.example.thai.PhraseActivity$2.onChildClick(PhraseActivity.java:130) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.widget.ExpandableListView.handleItemClick(ExpandableListView.java:590) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.widget.ExpandableListView.performItemClick(ExpandableListView.java:522) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.widget.AbsListView$PerformClick.run(AbsListView.java:3063) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.widget.AbsListView$1.run(AbsListView.java:3949) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.os.Handler.handleCallback(Handler.java:615) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.os.Handler.dispatchMessage(Handler.java:92) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.os.Looper.loop(Looper.java:137) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.app.ActivityThread.main(ActivityThread.java:4898) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at java.lang.reflect.Method.invokeNative(Native Method) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at java.lang.reflect.Method.invoke(Method.java:511) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at dalvik.system.NativeStart.main(Native Method) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): Caused by: java.io.FileNotFoundException: This file can not be opened as a file descriptor; it is probably compressed 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.content.res.AssetManager.openNonAssetFdNative(Native Method) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.content.res.AssetManager.openNonAssetFd(AssetManager.java:428) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): at android.content.res.Resources.openRawResourceFd(Resources.java:991) 
    10-20 01:40:03.664: E/AndroidRuntime(22802): ... 17 more

和源代码：

weakExpandableList.get().setOnChildClickListener(new ExpandableListView.OnChildClickListener() { 
     public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { 
      Object e = (Object)adapter.getChild(groupPosition, childPosition); 
      int nmbr_childs = adapter.getChildrenCount(groupPosition); 
      final int group_position = groupPosition; 

      // villkor för childitem. 
      switch (childPosition) { 
       case 0: 
        // tester huruvida ett eller två childitems. returvärdet fyller ingen funktion. 
        int x = (nmbr_childs > 1) ? loadAnimation_singleView(v, childPosition) 
         : loadAnimation_coupleView(v); 

        loadSound(0, group_position); // Här uppstår krasch ibland! 
       break; 
       case 1: 
        loadSound(1, group_position); 
        loadAnimation_singleView(v, childPosition); 
       break;    
     } 

     return true; 
    } 
    }); 




    private void loadSound(int position, int group_position) { 
    switch (position) { 
     case 0: 
      myVoice = soundPool.load(PhraseActivity.wr.get(), sound[group_position][0], 2); // Här uppstår en crash ibland - resource not found exeption 
      soundPool.setOnLoadCompleteListener(new OnLoadCompleteListener() { 
       @Override 
       public void onLoadComplete(SoundPool soundPool, int sampleId, 
        int status) { 
        soundPool.play(myVoice, 1, 1, 1, 0, 1.0f); 
       } 
      }); 
     break; 
     case 1: 
      myVoice = soundPool.load(PhraseActivity.wr.get(), sound[group_position][1], 2); 
      soundPool.setOnLoadCompleteListener(new OnLoadCompleteListener() { 
       @Override 
       public void onLoadComplete(SoundPool soundPool, int sampleId, 
        int status) { 
        soundPool.play(myVoice, 1, 1, 1, 0, 1.0f); 
       } 
      }); 
     break; 
    } 
}

来源

2013-10-19 Björn Hallström

我最好的猜测是你没有正确使用SoundPool。这是你每次载入的MP3吗？从Soundpool javadoc中可以看出，SoundPool允许您从磁盘加载音频资源，然后按照您的意愿多次播放它们。如果您每次加载和播放相同的剪辑或多个剪辑，那么您做错了。

来源

2013-10-20 00:08:59

oops发布了错误的代码块。现在就修复它！ –

好吧，你的意思是我应该只加载一个特定的mp3文件一次。当它装入时，我可以尽可能多地播放它。嗯...我有约1000个MP3文件在这个应用程序。我能否以另一种方式来做 - 在播放完之后卸载声音？ –

是的。保持int load（）方法返回的int值。这是声音文件的soundId。当你完成它时，调用'unload（int soundId）'。 –

加载soundPool文件后的应用程序崩溃482次

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