Navigation-based app + tab bar

I made a tab bar application with several tab bar buttons. Each button is linked to a separate xib file. This works for a xib with a UIViewController and a xib with a UITableViewController. However, it does not work for a xib with a UINavigationController.

On the left you can see what it looks like in Interface Buil开发者_开发技巧der, and on the right is what it looks like in the simulator.

Why isn't it showing up correctly in the simulator?

But it looks like it's showing up correctly. You probably just need to add some code to your UITableViewController to populate the tableView and set a title for the navbar.