To see how easy it is to add tab bar controllers to your apps, you are going to build the latest-and-greatest Twitter app that uses them. Up to this point, both of your previous Twitter applications have used the TwitterHelper class to grab data from the Twitter API. Instead of making the effort to use the TwitterHelper class again, you “chweet” by using a web view to display a user’s Twitter profile. (Cheat + tweet = chweet, get it?)
By the time you’re done the app will look like this:
You will “chweet” by using a web view instead of the Twitter API to display a user’s profile.
As you can see in the previous figure, the interface ...