How to force a video to play in fullscreen in youtube player?

Question

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);

Answer 1

Youtube v4.1.47 app cando it for you

intent.putExtra("force_fullscreen",true); 

I dont know about lower versions.