swift show title on navigation bar programmatically

// Place this in your didFinishLaunchingWithOptions method in the AppDelegate
let attrs = [
  NSAttributedString.Key.foregroundColor: UIColor.white, // changes color
  NSAttributedString.Key.font: UIFont(name: "Futura-Bold", size: 17)! // changes font
]

UINavigationBar.appearance().titleTextAttributes = attrs

// Place this in your didFinishLaunchingWithOptions method in the AppDelegate
let attrs = [
  NSAttributedString.Key.font: UIFont(name: "Futura-Bold", size: 17)!
]

UINavigationBar.appearance().titleTextAttributes = attrs

// Place this in your didFinishLaunchingWithOptions method in the AppDelegate
let attrs = [
  NSAttributedString.Key.foregroundColor: UIColor.white
]

UINavigationBar.appearance().titleTextAttributes = attrs

override func viewDidLoad() {
     super.viewDidLoad()
     self.title = "Your title over here"
}