Tells the delegate when the interface orientation of the status bar has changed.
- iOS 2.0–13.0Deprecated
Your singleton app object.
A constant that indicates the previous orientation of the app’s user interface; see Responding to App Life-Cycle Events for details.
The delegate can get the current device orientation from the shared
After calling this method, the app also posts a
UIApplication notification to give interested objects a chance to respond to the change.