How to remove all navigationbar back button title

Question

When I push a UIViewController, it has some title in back button at new UIViewController, if the title has a lot of text, It does not look good in

Answer 1

Taking inspiration from rordulu's answer here, I ended up creating a custom UINavigationController and UINavigation bar which seems to handle all cases of this tricky problem.

1) Initialise new UINavigationController with your custom UINavigationBar:

class CustomNavigationController: UINavigationController {

    convenience init() {
        self.init(navigationBarClass: CustomNavigationBar.self, toolbarClass: nil)
    }
}

2) Set the backItem.title property of the navigation bar to an empty string, every time the view lays itself out

class CustomNavigationBar: UINavigationBar {

    override func layoutSubviews() {
        backItem?.title = ""
        super.layoutSubviews()
    }
}

Now every time you use this navigation controller and bar combination, it will never have back button text!

Answer 2

Adding a second answer here as my first only partially works. This method is less elegant in the fact that it requires calling a method in each view in the application, however it works without any side-effects.

So firstly, create a UIViewController extension class with a function to remove back button text and add a custom back button:

extension UIViewController {

func setBackButton() {
    navigationController?.navigationBar.backIndicatorImage = R.image.backArrow()
    navigationController?.navigationBar.backIndicatorTransitionMaskImage = R.image.backArrow()
    navigationItem.backBarButtonItem = UIBarButtonItem(title: " ", style: .plain, target: nil, action: nil)
}

Secondly, we can simply call out to this function in the viewDidLoad of each view controller you need it in.

Answer 3

in viewDidLoad()

    let backBarButtonItem = UIBarButtonItem(title: nil, style: .plain, target: nil, action: nil)
    navigationItem.backBarButtonItem = backBarButtonItem

Answer 4

I have a simple solution for those, who don't want to use method swizzling or duplicating a similar code in different view controllers.

To remove back button title, create a UINavigationController subclass and override pushViewController(_, animated:) method:

final class CustomNavigationController: UINavigationController {

    override func pushViewController(_ viewController: UIViewController, animated: Bool) {

        super.pushViewController(viewController, animated: animated)

        let backBarButtonItem = UIBarButtonItem()
        backBarButtonItem.title = nil

        viewController.navigationItem.backBarButtonItem = backBarButtonItem
    }
}

Answer 5

Just use this:

func removeBackButton(vc:UIViewController) {
        let button = UIButton.init(type: .custom)
        button.setImage(UIImage.init(named:""), for: .normal)
        let leftBarButton = UIBarButtonItem.init(customView: button)
        vc.navigationItem.leftBarButtonItem = leftBarButton
}

So call this method in viewDidLoad:

override func viewDidLoad() {
        super.viewDidLoad()
     removeBackButton(vc:self)
}

Answer 6

it is simple. put a space in the title of the back button and ready. Remember that it has to be in the previous view where you want to remove the text.