title: How to implement overlay-tableview for search?
body: <p>Youtube search on iOS</p>
  
  <p><a href="https://i.stack.imgur.com/uuTtM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uuTtM.png" alt="enter image description here"></a></p>
  
  <p>I guess it's a tableview. 
  How do I make occupy variable amount of screen space like the image?</p>
  
  <p>I can start with the terms I need to search, or concepts I need to learn. throw me some hints please.</p>