An Additional UIViewController
To see the real power of UINavigationController, you need another UIViewController to put on the navigation controller’s stack. Create a new Objective-C class (File → New → File...). Name this class BNRDetailViewController and choose UIViewController as the superclass. Check the With XIB for user interface box (Figure 10.7).
Figure 10.7 Create UIViewController subclass with XIB
In BNRDetailViewController.m, delete all of the code between the @implementation and @end directives so that the file looks like this:
#import "BNRDetailViewController.h" @interface BNRDetailViewController () @end @implementation ...
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