title: Sticky footer with UIScrollView
body: <p>Need to achieve a sticky footer behaviour using <code>UIScrollView</code>, I actually want to replicate the behaviour of section footer view(red view) of <code>UITableView</code>. (please refer below <strong>gif url</strong>)</p>
  
  <p><a href="https://imgur.com/a/45Urz" rel="nofollow noreferrer">https://imgur.com/a/45Urz</a></p>
  
  <p>I have tried using the below constraints, We need the <code>Bottom Container</code> to be sticky.(it have to behave like the red section footer in <code>https://imgur.com/a/45Urz</code> gif)</p>
  
  <p><a href="https://i.stack.imgur.com/fTyvB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fTyvB.png" alt="Constraints"></a></p>