title: Hide Status Bar during a Custom UIViewController Transition
body: <p><strong>Background:</strong> I implemented a Custom UIViewController Transition where the first view controller (VC1) has a visible status bar     </p>
  
  <pre><code>override func prefersStatusBarHidden() -&gt; Bool {
      return false
  }
  </code></pre>
  
  <p>while the second presented view controller (VC2) has a hidden status bar:</p>
  
  <pre><code>override func prefersStatusBarHidden() -&gt; Bool {
      return true
  }
  </code></pre>
  
  <p>Transitioning is controlled by the user since I implemented a pull to open transition with gesture controllers.</p>
  
  <p><strong>Objective:</strong> I want the status bar to be hidden during appearance transition <em>AND</em> disappearance transition (essentially like the Google Maps Slide Out Menu).</p>
  
  <p><strong>Problem:</strong> The status bar is correctly hidden during the entire appearance transition of ViewController VC2. But during the entire disappearance transition the status bar is visible. Any suggestions on how to properly implement this for iOS 9?</p>