Question

In the template Apple gives you, I see that they have:

/*
- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
}
*/

I understand that you want your super class to do any loading of the view before your own view. For viewDidDisappear, do you do the same thing for the same reason?

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
}

Answer 1

Yes always call the super class method first to have it complete so then you can override any behaviour subsequently in your inherited classes method.

The only exception to this is the dealloc method where you should call [super dealloc] last to make sure you’ve cleared up your own class properly before any references might get lost and cause a memory leak.