Just to clarify something
I think there is a misunderstanding regarding what I mean when I say full screen.
I mean that the margins up and down are busy but on the sides there are some very small margins.
Conversely, when the full screen is lost, then the margins are also up and down and the sides are larger.
You can see it in the gif I put before. http://imgur.com/a/P4Xrq
When the yellow arrows appear the full screen is lost, when there are no arrows there is full screen but there are some small margins on the sides, those small margins I do not care but what I would like to solve is that you do not miss the full screen and get you run on all devices with full screen with these small margins at the sides.