iPhone Programming: The Big Nerd Ranch Guide

12. UINavigationController

Earlier in this book, you learned about UITabBarController and how it allows a user to access different screens. A tab bar controller is great when you have screens that don’t rely on each other, but what if you want to move between related screens?

For example, the iPhone Settings application has multiple related screens of information: a list of settings (like Sounds), a detailed page for each setting, and a selection page for each detail. This type of interface is called a drill-down interface. In this chapter, you will use a UINavigationController to add a drill-down interface to Homepwner (Figure 12.1).

Figure 12.1. Homepwner with UINavigationController

UINavigationController

When you have an application that ...