How to remove all navigationbar back button title

Question

When I push a UIViewController, it has some title in back button at new UIViewController, if the title has a lot of text, It does not look good in

Answer 1

Updated Answer For Swift 4.2

Working with UIAppearance is a cleaner way of solving the problem but it would cause all the UIBarButtonItem to have a clear text. An improved version of the solution could be to check if the UIBarButtonItem is contained in a UINavigationBar.

    UIBarButtonItem.appearance(whenContainedInInstancesOf: [UINavigationBar.self]).setTitleTextAttributes([NSAttributedString.Key.foregroundColor: UIColor.clear], for: .normal)