3.5. Other Xcode functionality

What follows are some notes on how to undertake other common Xcode tasks, ending with an overview of a lot of Xcode’s cooler bells and whistles that you may not be familiar with.

3.5.1. Adding frameworks with Xcode

To date, your programs have included three frameworks: Core Graphics, Foundation, and UIKit. You may find someday that you want to add another framework, to get access to another set of classes that will make your life easier. In particular, if you have problems accessing a method defined in the SDK, you can look in the appropriate class reference and see the framework that’s required near the top of the reference.