title: iOS: UISplitViewController cannot be pushed to UINavigationController
body: <p>I have an XCode iPad project using a navigation controller.  I tried to get a button to push a UISplitViewController to the navigation stack, but got this error:</p>
  
  <blockquote>
    <p>Split View Controllers cannot be pushed to a Navigation Controller</p>
  </blockquote>
  
  <p>Turns out UISplitViewController doesn't play nicely with UINavigationController.  However, I still need to show the split view controller when this button is clicked.  How do I do this?  And, also important, how do I make a back button so the user can be returned to the navigation controller?</p>