public classMymedia extends Activity implements

OnBufferingUpdateListener,

OnCompletionListener,

MediaPlayer.OnPreparedListener,

SurfaceHolder.Callback

{private static final String TAG = "Mymedia";private intmVideoWidth;private intmVideoHeight;privateMediaPlayer mMediaPlayer;privateSurfaceView mPreview;privateSurfaceHolder holder;privateString path;public voidonCreate(Bundle icicle)

{

super.onCreate(icicle);

setContentView(R.layout.main);

mPreview=(SurfaceView) findViewById(R.id.surface);/*得到SurfaceHolder对象*/holder=mPreview.getHolder();/*设置回调函数*/holder.addCallback(this);/*设置风格*/holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

}private voidplayVideo()

{try{

path= "http://www.dubblogs.cc:8751/android/Test/Media/3gp/test.3gp";//path = "/sdcard/test.3gp";

/*构建MediaPlayer对象*/mMediaPlayer= newMediaPlayer();/*设置媒体文件路径*/mMediaPlayer.setDataSource(path);/*设置通过SurfaceView来显示画面*/mMediaPlayer.setDisplay(holder);/*准备*/mMediaPlayer.prepare();/*设置事件监听*/mMediaPlayer.setOnBufferingUpdateListener(this);

mMediaPlayer.setOnCompletionListener(this);

mMediaPlayer.setOnPreparedListener(this);

mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

}catch(Exception e)

{

Log.e(TAG,"error:" +e.getMessage(), e);

}

}public void onBufferingUpdate(MediaPlayer arg0, intpercent)

{

Log.v(TAG,"onBufferingUpdate percent:" +percent);

}public voidonCompletion(MediaPlayer arg0)

{

Log.v(TAG,"onCompletion called");

}public voidonPrepared(MediaPlayer mediaplayer)

{

Log.v(TAG,"onPrepared called");

mVideoWidth=mMediaPlayer.getVideoWidth();

mVideoHeight=mMediaPlayer.getVideoHeight();if (mVideoWidth != 0 && mVideoHeight != 0)

{/*设置视频的宽度和高度*/holder.setFixedSize(mVideoWidth, mVideoHeight);/*开始播放*/mMediaPlayer.start();

}

}/*更改时出发的事件*/

public void surfaceChanged(SurfaceHolder surfaceholder, int i, int j, intk)

{

Log.v(TAG,"surfaceChanged called");

}/*销毁*/

public voidsurfaceDestroyed(SurfaceHolder surfaceholder)

{

Log.v(TAG,"surfaceDestroyed called");

}/*当SurfaceHolder创建时触发*/

public voidsurfaceCreated(SurfaceHolder holder)

{

Log.v(TAG,"surfaceCreated called");

playVideo();

}/*销毁*/@Overrideprotected voidonDestroy()

{

super.onDestroy();if (mMediaPlayer != null)

{

mMediaPlayer.release();

mMediaPlayer= null;

}

}

}