隐藏导航栏后退按钮时的奇怪行为

Question

I've created my Storyboard with a LoginViewController which is set as the RootViewController. If the user is already logged then I just segue to the HomeViewController.

The problem is on the HomeViewController. I don't want the user to navigate back to the LoginViewController so I'm trying to hide the back button in the HomeViewController using:

public override void ViewWillAppear(bool animated)
{
    NavigationItem.SetHidesBackButton(true, false);
} 

Doing this hides the button on the HomeViewController as expected, however when I navigate to any other VC's the Back button is still hidden but tappable because I can tap where the button would be and it would navigate back to the HomeVC. If I then navigate again to the same VC as before, the Back button is visible. So basically it's only hidden on the first load.

Any ideas?

Answer 1

That's because you set SetHidesBackButton in your ViewWillAppear. Copy paste it in your ViewDidLoad(), and it should work just fine.

More Info

Answer 2

Seems problem with rootViewController which you assign and also with navigationController . To avoid this behaviour you should Navigate and assign rootViewController from AppDelegate, also, improve your back button hiding code.

For more help please paste code, Thank You!

AppDelegate.swift

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

     var rootView: MyRootViewController = MyRootViewController()

     if let window = self.window{
            window.rootViewController = rootView
     }

     return true
}

ViewDidLoad

navigationItem.hidesBackButton = true

Answer 3

Don't try to hide the button. Use NavigationController as root. Push login then home and remove login from navigation stack.