如何在 swift 的导航栏中创建自定义后退按钮？

Question

public override func viewDidLoad() {
    super.viewDidLoad()
    navigationItem.backBarButtonItem = .init(image: "back_icon".image, style: .plain, target: nil, action: nil)
}

For this above code, I got my back_icon image with the default back image

Any idea to remove the default back button at the same time preserving swipe edge to pop viewController.

Answer 1

You should be able to change the back button image globally by using

UINavigationBar.appearance().backIndicatorImage = UIImage(named: "arrow-back")
UINavigationBar.appearance().backIndicatorTransitionMaskImage = UIImage(named: "arrow-back")

And if you only want to change it in some places:

navigationController?.navigationBar.backIndicatorImage = UIImage(named: "arrow-back")
navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage(named: "arrow-back")  

Removing an arrow at all would be as simple as

navigationController?.navigationBar.backIndicatorImage = UIImage()
navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage()

Answer 2

You can remove default back Button by following way:

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

And manually add navigation items in left side using navigationitem.leftBarButtonItem.

Hope it helps!