Why do we use [super viewDidLoad] in every viewDidLoad method?

Question

Possible Duplicate:
Do I always have to call [super viewDidLoad] in the -viewDidLoad method?

Why is the super class' viewDidLoad method called in every viewDidLoad? What work will it do? Is it compulsory?

Answer 1

It is not compulsory, but it is good design practice. It doesn't affect direct subclasses of the UIKit classes, but if you subclass a custom class, you'll need it. All it does is call the viewDidLoad of it's superclass to perform it's configuration.