title: I've hidden the navigation bar and the status bar, now the screen edge pan gesture to go back won't work, is this typical?
body: <p>I'm curious, if I set the navigationBar to <code>hidden</code>, and also hide the status bar, my view controller no longer responds to the screen edge gesture to pop the view controller. </p>
  
  <p>Is this expected behaviour? I tried to set the <code>interactivePopGestureRecognizer</code> to enabled in <code>viewDidLoad</code> after I hide the navigation bar, but it still won't work.</p>