Sent when it is no longer safe to proceed without immediately handling the error.
- iOS 5.0+
An error object encapsulating information about the error.
UIKit calls this method when it is no longer safe to proceed without immediately handling the error, such as when the application is being suspended. Subclasses that override this method must immediately end error handling (including dismissing any interactive user interface) and call
finished before returning. It is only necessary to override this method if you override
handle without invoking the superclass implementation (