title: Hide Bottom Bar Navigation Controller
body: <p>I want to hide the bottom toolbar on a certain screen in my application, and IB seems to have an option for that which seems to preview as working correctly, but when I build and test the application the bottom toolbar is still there.</p>
  
  <p>I know that I can use <code>[self.navigationController setToolbarHidden:YES];</code> but my question is not how to do it using code, but how to get this to work through Interface Builder.</p>
  
  <p><img src="https://i.stack.imgur.com/HaSCB.png" alt="enter image description here"></p>
  
  <p>Here is a screenshot of what I am talking about. See on the right how I have selected Bottom Bar: None - this removes the bottom bar as previewed to the left. If I set it to inferred (instead of None) the bottom bar shows in the IB preview. </p>
  
  <p>How do I get this to work correctly? </p>