我有一个包含本地资源(音频文件)的所有资源ID的数组。我试图一个接一个播放所有这些文件。为此,我在玩下一个文件的媒体播放器的setOnCompletionListener事件,如下图所示: -播放音频文件时出现异常
mMediaPlayer.setOnCompletionListener();
完整代码连续播放文件是如下: -
代码
private void playing(){
MediaPlayer mMediaPlayer = new MediaPlayer();
mMediaPlayer = MediaPlayer.create(this, Constants.mAudioIds[play]); // next file will be played
mMediaPlayer.start();
mMediaPlayer.setOnCompletionListener(new OnCompletionListener(){
@Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub
play +=1;
playing();
}
});
}
如果我单独播放所有文件,它们会完美播放。但使用上面的代码,我在MediaPlayer中出错。以下是堆栈跟踪。
堆栈跟踪
01-17 20:52:10.088: INFO/MediaPlayer(379): Info (1,44)
01-17 20:52:10.358: DEBUG/dalvikvm(215): GC freed 43 objects/2096 bytes in 108ms
01-17 20:52:15.368: WARN/MediaPlayer(379): info/warning (1, 26)
01-17 20:52:15.410: ERROR/PlayerDriver(31): Command PLAYER_PREPARE completed with an error or info PVMFErrResource
01-17 20:52:15.419: ERROR/MediaPlayer(379): error (1, -17)
01-17 20:52:15.462: WARN/PlayerDriver(31): PVMFInfoErrorHandlingComplete
01-17 20:52:15.568: DEBUG/MediaPlayer(379): create failed:
01-17 20:52:15.568: DEBUG/MediaPlayer(379): java.io.IOException: Prepare failed.: status=0x1
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at android.media.MediaPlayer.prepare(Native Method)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at android.media.MediaPlayer.create(MediaPlayer.java:644)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at com.media.sample.ui.AutoPlay.playing(AutoPlay.java:162)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at com.media.sample.ui.AutoPlay.access$0(AutoPlay.java:138)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at com.media.sample.ui.AutoPlay$1.onCompletion(AutoPlay.java:171)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:1157)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at android.os.Handler.dispatchMessage(Handler.java:99)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at android.os.Looper.loop(Looper.java:123)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at android.app.ActivityThread.main(ActivityThread.java:4363)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at java.lang.reflect.Method.invokeNative(Native Method)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at java.lang.reflect.Method.invoke(Method.java:521)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
01-17 20:52:15.568: DEBUG/MediaPlayer(379): at dalvik.system.NativeStart.main(Native Method)
而且,相同的代码完全运行在极少数的设备(但在大多数设备+模拟器),它提供了异常以上。
请为此提供一些解决方案。
我认为这可能是一个对你的情况很好的答案:http://stackoverflow.com/questions/3667782/android-media-player-fails-mp3-with-pvmferrnotsupported – Zappescu 2012-01-17 16:33:37
该问题应该来自于没有准备() 方法。 http://developer.android.com/reference/android/media/MediaPlayer.html#prepare%28%29 – 2012-01-17 16:33:55