我在Android Service类中有这个代码部分,它使用MediaPlayer。当我启动播放器并在播放一段时间后将手机转为飞行模式(用于模拟网络错误)时,onCompletion
监听器会在一段时间内触发。但onError
不会触发任何IO错误。
此外,当将网络从Wi-Fi更改为3G并返回时,流停止,但没有错误,onCompletion
也不起作用!尽管播放停止了。为什么会这样?代码有什么问题?这取决于手机吗? Android 2.3.5,HTC Explorer。显然播放已停止,但没有错误,onCompletion
不会触发。
public class PlayerService extends Service implements MediaPlayer.OnErrorListener, MediaPlayer.OnCompletionListener {
///
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
// TODO Auto-generated method stub
this.playlist="ONERROR";
switch (what){
case MediaPlayer.MEDIA_ERROR_UNKNOWN:
Log.e(TAG2, "unknown media playback error");
break;
case MediaPlayer.MEDIA_ERROR_SERVER_DIED:
Log.e(TAG2, "server connection died");
default:
Log.e(TAG2, "generic audio playback error");
break;
}
switch (extra){
case MediaPlayer.MEDIA_ERROR_IO:
Log.e(TAG2, "IO media error");
break;
case MediaPlayer.MEDIA_ERROR_MALFORMED:
Log.e(TAG2, "media error, malformed");
break;
case MediaPlayer.MEDIA_ERROR_UNSUPPORTED:
Log.e(TAG2, "unsupported media content");
break;
case MediaPlayer.MEDIA_ERROR_TIMED_OUT:
Log.e(TAG2, "media timeout error");
break;
default:
Log.e(TAG2, "unknown playback error");
break;
}
return true;
}
@Override
public void onCompletion(MediaPlayer arg0) {
// TODO Auto-generated method stub
this.playlist="COMPLETED";
}
///
this.mplayer = MediaPlayer.create(c, Uri.parse(url));
this.mplayer.setOnErrorListener(this);
this.mplayer.setOnCompletionListener(this);
this.mplayer.start();
我该如何解决这个问题?
答案 0 :(得分:0)
首先,准备MediaPlayer:
mPlayer.prepareAsync();
然后启动MediaPlayer:
mPlayer.start();