title: Is there a way to know if a UIViewController has been presented and dismissed modally ?
body: <p>Is there a way to know if a UIViewController has been presented and dismissed modally ?</p>
  
  <p>Something like:</p>
  
  <ul>
  <li>hasBeenPresentedModally</li>
  <li>hasBeenDismissedModally</li>
  </ul>
  
  <p>thanks</p>