title: Presenting transparent modal UIViewController on iPad iOS 7
body: <p>I have an iPad app which supports all orientations and has a UITabBarController managing a set of view controllers. Rotation works as expected everywhere. Keep in mind my UITabBarController is the <code>.rootViewController</code> of my app's UIWindow. </p>
  
  <p>I now go to present a UIViewController modally from my UITabBarController. It presents well, and the status bar moves in accordance with the device's orientation. However, my UIViewController's view frame never changes (it is always in portrait dimensions, regardless of how it was presented).</p>
  
  <p>This isn't an issue on iOS 8, and I thought UITabBarController would handle a modal controller on its own. Is there something I'm missing?</p>
  
  <p>Bonus: ultimately this UIViewController will be transparent and reveal the app beneath it. When I try this and rotate my device, none of the regular view controllers rotate.</p>