My code below to streaming video:
VideoView vv = (VideoView)this.findViewById(R.id.screen_video); Uri uri = Uri.parse(URL); vv.setVideoURI(uri); vv.start();
It depends on which Android Version you are developing your application on. There are certain devices which do not support running .mp4 file. Go through Android Media support for more information. Check if you can play any .3gp files or not.