how to call an AppDelegate method from RootViewController without passing a delegate?

Question

how to call an AppDelegate method from RootViewController without passing a delegate?

Just wondering whether there is a way to do this? (or do I need to create a delegate object in the RootViewController to hold a reference to the AppDelegate)

Answer 1

[[[UIApplication sharedApplication] delegate] someMethod];

Works like a charm!

Answer 2

You can get access to the app delegate from any controller using

MyDelegate* aDelegate = (MyDelegate *)[[UIApplication sharedApplication] delegate];