Sams Teach Yourself Cocoa Touch™ Programming in 24 Hours

Hour 8. Drawing User-Interface Elements

What You’ll Learn in This Hour:

• Adding images to buttons

• Writing your own control

• Drawing with Core Graphics

Although Apple provides standard UI controls, some of the most beautiful applications create their own interface elements to really stand out. In this hour you’ll learn how to make interface elements. First, you’ll learn how to customize the standard elements using the UIImage and UIImageView classes. Then, to better understand UIViews, we’ll implement our own customized buttons, which we can animate for more polish. We’ll learn all about Core Graphics, the powerful drawing framework provided by the iPhone, and use it to create the animation.

Adding Images to UIButton

UIButton can have ...