title: Approach to make a custom tabBar
body: <p>What should be the best way to create a effect like this  and the handling of navigation controllers and view controllers ... what to do if I don't want to re-size each subsequent view in viewcontorller and things appear as if it is a tabBar</p>
  
  <p><img src="https://i.stack.imgur.com/vFEG9.png" alt="enter image description here"></p>