title: ios scrollview with a full screen video as main content
body: <p><a href="https://i.stack.imgur.com/bMdzl.jpg" rel="nofollow noreferrer">this is the layout i want to acheive</a></p>
  <p>I am trying to figure out how to make this layout work on different screens. i have tried to get the screen height and programatically set the video layer height equal to it. The volume button constrains are 25 from the right margin and 25 from the bottom of the video. The problem is that when i try to run the app the volume button shows in the middle right of the screen instead on the right of the bottom corner. Also the image views are overlapping the video instead of showing up under it. My assumption is that the constrains of these elements see the height of the video layer in the story board, not the height that i set programatically in the ViewController.swift.</p>