title: iOS - Resizing Navigation Bar height with detail
body: <p>I want to make a navigation bar that changes height in it's detail view just like the messages app in iOS 10. How can I do that?</p>
  
  <p><strong>Edit:</strong></p>
  
  <p>I am looking to change the height dynamically. SizeThatFits() Permanently changes the height.</p>
  
  <p><a href="https://i.stack.imgur.com/Kgv8k.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Kgv8k.gif" alt="Resizing Navigation Bar"></a></p>