Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
In this hour you learned about the run loop which is fundamental to the operation of many parts of Cocoa. Not understanding the run loop, and preventing it from running, trips up many beginners who wonder why their delegates are not being called as they expect. You also learned how events are forwarded to UIViews, knowledge that you’ll use in the next hour to make your own custom UIView.