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?

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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.