iOS 8 Swift navigation bar title, buttons not showing in tab based application

Question

I am trying to follow this tutorial, this answer, and this answer to create navigation bars for each of my tabs in a tab-based application in iOS 8 / Swift, but no title or butt

Answer 1

I was unnecessarily creating two navigation bars. The navigation controller comes with a navigation bar, and I changed my ViewController to:

class ViewController: UIViewController, UINavigationBarDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        self.navigationItem.title = "My Title"
        self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Left Button", style:   UIBarButtonItemStyle.Plain, target: self, action: nil)
        self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Right Button", style: UIBarButtonItemStyle.Plain, target: self, action: nil)
    }

    func positionForBar(bar: UIBarPositioning) -> UIBarPosition {
        return UIBarPosition.TopAttached
    }

}

Answer 2

You're making a custom UINavigationBar when one is already provided to you with the UINavigationController.

Try this instead in your ViewController:

override func viewDidLoad() {
    super.viewDidLoad()

    self.title = "Title"

    let navigationBar = navigationController!.navigationBar
    navigationBar.tintColor = UIColor.blueColor()

    let leftButton =  UIBarButtonItem(title: "Left Button", style: UIBarButtonItemStyle.Plain, target: self, action: nil)
    let rightButton = UIBarButtonItem(title: "Right Button", style: UIBarButtonItemStyle.Plain, target: self, action: nil)

    navigationItem.leftBarButtonItem = leftButton
    navigationItem.rightBarButtonItem = rightButton
}

Answer 3

No need to use a new navigation bar just use your existent navigation bar. Remember what you did here :

let nc1 = UINavigationController(rootViewController: vc1)

So your view controller is already embed inside a navigation controller just use self to access to the navigation items

self.title = "Your Title"

var homeButton = UIBarButtonItem(title: "LeftButton", style: .Plain, target: self, action: "")

var logButton = UIBarButtonItem(title: "RigthButton", style: .Plain, target: self, action: "")

self.navigationItem.leftBarButtonItem = homeButton
self.navigationItem.rightBarButtonItem = logButton