O'Reilly logo

iPhone and iPad Apps for Absolute Beginners, Fourth Edition by Laurence Moroney, Rory Lewis

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter     5

Going Deeper: Patterns and Delegates

In the last few chapters, you’ve been looking at creating “Hello, World!”–style applications that perform basic tasks, using very simple controls—the button, the label, and the image view. These introduced you to some concepts of development, including actions and outlets. In this chapter, you’ll look into more of the concepts that are regularly used in iOS development and that you’ll use extensively in this book. They are the concepts of delegates, messages, and patterns.

It probably sounds very high level and confusing at the moment, and you may not grasp it all the first time through, but don’t worry—with practice it becomes easier. We’ll warn you that this might be the most difficult chapter ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required