title: UISplitViewController display master view above detail in portrait orientation
body: <p>I have a UISplitViewController embedded in a UINavigationController with a UINavigationItem button to toggle the display of the master view in portrait orientation.  I want to show the master view above the detail view when the view first loads in portrait orientation.  </p>
  
  <p>Any similar examples I have found show the master and detail views splitting the screen in portrait orientation, but I need the detail view to be full screen in portrait with the master view covering the detail view when the UISplitViewController first loads (as if the master view has been swiped out from the left).  Does anyone know how to do that?</p>