iPad orientation change issue
问题 My iPhone application is displaying some odd behavior when run on the iPad with respect to supporting orientation changes. The app starts up with a view controller (call it view A for the sake of argument) and navigation controller, and shouldAutorotateToInterfaceOrientation is returning YES for portrait only. Onto the navigation controller, I push a view controller (view B) that also returns YES for portrait only. Then, I push another view controller (view C) onto the nav controller that