title: No Swipe Back when hiding Navigation Bar in UINavigationController
body: <p>I love the swipe pack thats inherited from embedding your views in a <code>UINavigationController</code>.  Unfortunately i cannot seem to find a way to hide the <code>NavigationBar</code> but still have the touch pan swipe back <code>gesture</code>.  I can write custom gestures but I prefer not to and to rely on the <code>UINavigationController</code> back swipe <code>gesture</code> instead.</p>
  
  <p>if I uncheck it in the storyboard, the back swipe doesn't work</p>
  
  <p><img src="https://i.stack.imgur.com/4n4Dy.png" alt="enter image description here"></p>
  
  <p>alternatively if I programmatically hide it, the same scenario.</p>
  
  <pre class="lang-c prettyprint-override"><code>- (void)viewDidLoad
  {
      [super viewDidLoad];
      [self.navigationController setNavigationBarHidden:YES animated:NO]; // and animated:YES
  }
  </code></pre>
  
  <p>Is there no way to hide the top <code>NavigationBar</code> and still have the swipe?</p>