In the previous chapter, you created a Cocoa application project called TestApp. In this chapter, you’ll explore the anatomy of this project and familiarize yourself with Xcode’s user interface.
Earlier versions of Xcode allowed users to select a multiple-window interface, but the default was single-window (where most views related to the open project were contained within the same window). Single-window mode wasn’t quite single-window mode, however; a number of auxiliary windows could appear. In Xcode 4, Apple has taken the all-in-one-window design approach much further.
If it’s not open already, open the TestApp project you created in Chapter 2.
An Xcode project consists of a collection of source ...