Video Not played from internal storage

[iAviatorJose]

I am not able to a play a video stored inside a folder.

Here is the code i am using. And i am trying to play an mp4 file.

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
video_view = (AdaptiveSurfaceView)findViewById(R.id.video_view);

    videoPlaybackManager = new VideoPlaybackManager(this, video_view,playbackHandler );

    playbackHandler = new PlaybackHandler() {
        @Override
        public void onPreparePlayback() {
            runOnUiThread (new Runnable() {
                public void run() {
                    videoPlaybackManager.showMediaController();
                }
            });
        }
    };

    videoPlaybackManager.setupPlayback(Environment.getExternalStorageDirectory() + "/PurpleSlate/PurpleSlateVideos/demo.mp4");

}