Q:

ENSideSwiftMenu: how to use same Navigation Bar for all View Controllers

I am using Evgeny Nazarov's Swift Side Menu for my iOS app and was wondering if anyone has used this same library and able to have the same Navigation Bar for every View Controller that is called from the menu. 
I put a BarButtonItem that toggles the sliding menu on my Root View Controller.  My problem is that only my Root View Controller shows this Toggle Button.  But I would like to have that same Navigation Bar with the Toggle button on every View Controller that is accessible when clicking an option on the sliding menu. 
Has anyone had an experience achieving this?  Thanks! 
UPDATE 1
This is what happens when I added a NavigationBar and BarButtonItem to the other ViewControllers that aren't the RootViewController.  The new Navigation Bar ends up under the existing Navigation Bar from the Navigation Controller. 
The screen on the left is the Root View Controller and the one on the right is the View Controller when I select the second item on the menu. 
UPDATE 2: SOLVED
override func viewDidLoad() {
    super.viewDidLoad()

    let menuItem = UIBarButtonItem(image: UIImage(named: "icon_menu"), style: .Plain, target: self, action: "menuBarButtonItemClicked")
    menuItem.tintColor = UIColor.whiteColor()
    self.navigationItem.leftBarButtonItem = menuItem
}

func menuBarButtonItemClicked() {
    toggleSideMenuView()
}

A:

You need to put a UIBarButtonItem on the navigation bar in every view controller, not in the root view controller. 