title: Top Bar on Collection View Controller
body: <p>In my app, I have a collection view controller that is accessible by a modal type segue. What I am want is to have a top bar on the collection view controller. However, when I set a top bar in  attributes tab of the collection view controller, it shows on the storyboard but not in simulator?</p>
  
  <p><img src="https://i.stack.imgur.com/n4CyY.png" alt="enter image description here"></p>