PLAY FILE MP4 TỪ INTERNET

Uri uri = Uri.parse("http://khoapham.vn/download/amthambenem.mp4"); 
mVideoView.setMediaController(new android.widget.MediaController(getApplicationContext()));
mVideoView.setVideoURI(uri); 
mVideoView.requestFocus();
mVideoView.start();

Lưu ý:
1 - Nhớ xin Permission Internet
2 - mVideoView: là đối tượng VideoView
3 - Dừng phim lại: mVideoView.stopPlayback();