String sdcarduri = "/sdcard/3.3GP"
         //link your video view from layout file
         videoView = (VideoView)this.findViewById(R.id.videoView33);

        //add controls to a MediaPlayer like play, pause.
        MediaController mc = new MediaController(this);
        videoView.setMediaController(mc);

        //Set the path of Video or URI
        videoView.setVideoURI(Uri.parse(sdcarduri));

       //Set the focus
        videoView.requestFocus();
       //auto play as the activity loads
        videoView.start();