CustomNavigation - Swift 4

CustomNavigation.txt

class CustomNavigationController: UINavigationController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        let appearance = UIBarButtonItem.appearance()
        appearance.setBackButtonTitlePositionAdjustment(UIOffset.init(horizontal: -1000, vertical: 0), for: .default)
        self.navigationBar.isTranslucent = true
        self.navigationBar.barTintColor = UIColor.black
        #if swift(>=4.0)
        self.navigationBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white, NSAttributedString.Key.font: UIFont.systemFont(ofSize: 16.0)]
        #elseif swift(>=3.0)
        self.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName : UIColor.white, NSFontAttributeName: UIFont.systemFont(ofSize: 16.0)];
        #endif
        self.navigationBar.tintColor = UIColor.white
        self.navigationItem.title = "Example"
    }
}