How to change color for tab bar non selected icon in swift?

Question

How to change color for tab bar non selected icon and text? I found this answer (How to change inactive icon/text color on tab bar?), but can't implement it for swift.

Answer 1

iOS 10

class TabBarVC: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // make unselected icons white
        self.tabBar.unselectedItemTintColor = UIColor.white
    }
}