How to handle rotation for a UIViewController that isnt on top of UINavigationController stack?

Question

I have a root UIViewController (VC1), inside a UINavigationController, which handles rotation by adjusting its views/subviews frames manually in the willRotateToInterfaceOri

Answer 1

The way I resolve this is to check on viewWillAppear: to see if the orientation is now different to when viewDidDisappear was called. If so I call the code to layout the view.

To adopt this approach first factor the code responsible for laying out the view into something like _layoutViews, can simply call it as required in viewWillAppear as well as in willRotateToInterfaceOrientation:.