How do I set selected tab in UITabBarController using StoryBoard?

Question

How can I switch to some tab in UITabBarController using StoryBoard? I have tried the code below but without success (the tab is not selected):

Answer 1

*Swift Comment - 18 months later if you convert Yanchi's solution into Swift in your appDelegate you'll get the expected result. The Swift translation is:

let tabBar: UITabBarController = self.window?.rootViewController as! UITabBarController

tabBar.selectedIndex = 1