can't change title navigation Controller - ios

Question

I can't change the title of my navigationBar in the options view. I am not using Storyboards. I can't add button too.
This is my App Delegate code :
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
let viewController = MenuTableViewController(nibName: nil, bundle: nil) //ViewController = Name of your controller
let navigationController = UINavigationController(rootViewController: viewController)
self.window = UIWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = navigationController
self.window?.makeKeyAndVisible()
return true
}
This is my MenuTabeViewController file
override func viewDidLoad() {
super.viewDidLoad()
self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Options", style: .plain, target: self, action: #selector(handleOptions))
}
func handleOptions() {
let optionViewController = optionsViewController()
present(optionViewController, animated: true, completion: nil)
}
this is my options file
class optionsViewController: UINavigationController {
override func viewDidLoad() {
super.viewDidLoad()
view?.backgroundColor = UIColor.white
//I've tried 3 solutions
self.navigationItem.title = "Options"
self.title = "Options"
self.navigationBar.topItem?.title = "Options"
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
dismiss(animated: true, completion: nil)
}
}

Answer 1

I believe the issue is due to the fact that you're not setting up the new navigation / view controller properly when presenting it.
When presenting your new UINavigationController, as you did previously in the AppDelegate, you'll want to create a UIViewController and set it as the rootViewController. So you'll want something like OptionsNavController and OptionsViewController instead of a single nav controller.
Then in your OptionsViewController simple call self.title = #"Options".
EDIT
I'm including an example below.
func handleOptions() {
let optionsViewController = OptionsViewController()
let optionsNavController = UINavigationController(rootViewController: optionsViewController)
present(optionsNavController, animated: true, completion: nil)
}
so then as stated above, call self.title = #"Options" in OptionsViewController.