In Chapter 4, you learned about UITabBarController and how it allows a user to access different screens. A tab bar controller is great for screens that are independent of each other, but what if you have screens that provide related information?
For example, the Settings application has multiple related screens of information: a list of settings (including some for apps, like Safari), a detail page for each setting, and a selection page for each detail (Figure 12.1). 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 LootLogger that lets the user see and edit the details of an Item. These details will be presented by the DetailViewController that you created in Chapter 11 (Figure 12.2).
