Sometimes life is simple, too simple.
Sometimes you get stuck for a day and it was something totally ridiculous that you couldn’t figure out. This is one of those days.
Doing IOS Development, I thought I had it down. Create a new UIView, create a new view controller class, and set the UIViewController’s class to the newly created class in the interface builder.
Not so with Cocoa and native development. Don’t worry Apple makes it just as easy. Have a look: