Custom UINavigationController UIToolbar Background Image

Question

I have an iPhone application using UINavigationController and would like to customize the elements with custom background images. I was able to do this for the

Answer 1

A simple option is to subclass UINavigationBar/UIToolbar and initialize the navigation controller using the method:

- (instancetype)initWithNavigationBarClass:(Class)navigationBarClass toolbarClass:(Class)toolbarClass

However, for simple customizations (as background images, shadows, etc.) I would recommend to use the UIAppearance protocol pattern.