Question

When create the new objective-c class UIViewController file.
I want to know which command/ method/ line in ViewController.m file or from other file is execute before it generate the view from nib file.

I only know that viewDidLoad will run first before the nib file.
Is there any thing else?

Thank for helping little noob here.

Answer 1

The only method that is called before your view hierarchy is loaded is the initWithNibName:bundle: method.
Then the first time you access the view controller’s view the nib is loaded (via the loadview method) and then the viewDidLoad method is called.
I hope that this makes it clear.

Ps. Although you could override loadview method, Apple states that:

If you use Interface Builder to create your views and initialize the
view controller, you must not override this method. (Apple’s documentation on loadview method)