iOS 5 [UINavigationBar appearance] setBackgroundImage does not do work

Question

I created a new test iOS5 project in Xcode 4.2 Build 4D199 and tried to set the appearance of the UINavigationBar as described above, but nothing happens.

Answer 1

viewDidLoad is the wrong place to be messing with the appearance proxy of a navigation controller's navigation bar. Do this sort of thing before the navigation controller is even created. In your app delegate's applicationDidFinishLaunching is a good place.