I have an app where the help section has a tutorial video I want to force this video to open in Fullscreen using the Youtube player (Just like the Market/Play app does). it forces videos to play in Fullscreen even if it's a portrait video.
I use this code to force the video to open in youtube player
String videoId = "VIDEO_ID_HERE";
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("vnd.youtube:"+videoId));
intent.putExtra("VIDEO_ID", videoId);
startActivity(intent);