In your group tree, you will see the three class files we will be working with,
UFOGameViewController. These files all have an associated header (.h file) and implementation file (.m file). The group tree is shown in Figure 1–3.
First, take a look at the
UFOAppDelegate.m files. These files should look familiar to you from other iOS development work. They are nothing more than a base
UINavgiationController subclass. If you need to familiarize yourself with the code ...