Learning iOS Development: A Hands-on Guide to the Fundamentals of iOS Programming

Challenges

1. Implement the about scene using the Storyboard editor in both the navigation controller and tab bar controller cases. In addition to creating an about view controller on the storyboard, you need to remove all the code used and manually create it. You no longer need the XIB file, though you can quickly copy and paste the contents to the newly created storyboard view controller. Remember to set the class of the view controller you drag onto the storyboard to AboutViewController.

2. Add code to the UINavigationController-based implementation to show the last top-level scene the user was in. For example, if the user was in the car images scene, took the app out of memory, and then launched the app, the app shows the car images scene, ...