android原生自带的播放器一般只能播放本地视频，而没有播放url的功能。不过android系统中有一个VideoView的控件可以实现这一功能。

简单实现如下：

public class MyVideoPlay extends Activity implements MediaPlayer.OnErrorListener,MediaPlayer.OnCompletionListener {public static final String TAG = "MyVideoPlay";private VideoView mVideoView;private Uri mUri;private int mPositionWhenPaused = -1;private MediaController mMediaController;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.video_view);//Set the screen to landscape.this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);mVideoView = (VideoView)findViewById(R.id.my_video_view);//Video fileIntent it = getIntent();mUri = Uri.parse(it.getStringExtra("netUrl"));//Create media controllermMediaController = new MediaController(this);mVideoView.setMediaController(mMediaController);mVideoView.setOnCompletionListener(new OnCompletionListener() {         @Overridepublic void onCompletion(MediaPlayer mp) {// TODO Auto-generated method stubMyVideoPlay.this.finish();}});}public void onStart() {// Play Videoif (mVideoView != null && mUri != null) {mVideoView.setVideoURI(mUri);mVideoView.start();} else {Toast.makeText(MyVideoPlay.this, "发生错误", Toast.LENGTH_SHORT).show();}super.onStart();}public void onPause() {mPositionWhenPaused = mVideoView.getCurrentPosition();mVideoView.stopPlayback();       super.onPause();}public void onResume() {// Resume video playerif(mPositionWhenPaused >= 0) {mVideoView.seekTo(mPositionWhenPaused);mPositionWhenPaused = -1;}super.onResume();}public boolean onError(MediaPlayer player, int arg1, int arg2) {return false;}public void onCompletion(MediaPlayer mp) {MyVideoPlay.this.finish();}
}

截图：