How to subclass UIApplication?

Question

The iPhone Reference Libary - UIApplication says I can subclass UIApplication, but if I try this I will get an exception:

*** Terminating app due to uncaught         


        

Answer 1

In your app's info.plist, make sure you change the NSPrincipalClass key to the name of your subclass. This'll make Cocoa instantiate the correct class when the applications loads - you shouldn't have to do anything other than that to get your subclass working.