             case .left:
                 menuButton.customView!.alpha = 1
                 navigationItem.leftBarButtonItem = menuButton
+                menuView.isHidden = false
                 break
             case .right:
                 removeBackButton()

    open var backPosition: ButtonPosition = .right
    private var handlerView: UIView!
    
    private var backButton: UIBarButtonItem!
    private var menuButton: UIBarButtonItem!
    

            for queueViewController in internalNavigationController.viewControllers
                where object_getClassName(queueViewController) == object_getClassName(viewController)
            {
                if shouldNavigateToPreviousViewController {
                    internalNavigationController.popToViewController(queueViewController, animated: true)
                    removeBackButton()
                }
                return
            }
            
