@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final VideoView view = findViewById(R.id.videoView3);
        view.setMediaController(new MediaController(this));
        view.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                view.start();
            }
        });

        String dataPath = Environment.getExternalStorageDirectory().getPath()+"/abc.mp4";
        view.setVideoPath(dataPath);
    }