UIView and initWithFrame and a NIB file. How can I get the NIB file loaded?

I have a UIView called baseViewand in that I have initWithFramewhere I add some other views and do some custom stuff. The same view also has a NIB file.

Now I have a UIViewController class named AppController in which I want to add the baseView view to the view of the AppController view so I am doing this:

self.view = baseView; but the problem is that the NIB file does not get loaded. How do I make sure the customized stuff AND the NIB file get´s loaded/run?