android播放视频

package com.example.videoplayer;

import android.media.MediaPlayer;
import android.os.Bundle;
import android.app.Activity;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;

public class MainActivity extends Activity {

private MediaPlayer player;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SurfaceView sv = (SurfaceView) findViewById(R.id.sfv);
//拿到surfaceview的控制器
final SurfaceHolder sh = sv.getHolder();
sh.addCallback(new Callback() {

//surfaceView销毁时调用
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
//每次surfaceview销毁时，同时停止播放视频
if(player!=null){
player.stop();
player.release();
player=null;
}

}
//surfaceView创建时调用
@Override
public void surfaceCreated(SurfaceHolder holder) {
//每次surfaceView创建时才去播放视频
if(player == null){
player = new MediaPlayer();
player.reset();
try {
player.setDataSource("sdcard/1.mp4");
player.setDisplay(sh);
player.prepare();
player.start();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}
//surfaceView结构改变时调用
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub

}
});

}

}