限制导航栏在按钮点击时隐藏

Question

I wants to hide navigation bar on tap. So i used this method of navigation bar.

 self.navigationController?.hidesBarsOnTap = true

Have 2 button on screen and when i tap on that button for perform some action it is also hiding navigation bar. I think button click consider as tap.

Can you please let me know, is it correct behaviour? Also please let me know if there is any way to restrict this. I don't want to hide navigation bar on button tap, rest of parts of screen will be fine.

Answer 1

You can create your custom button and handle touches on to enable/disable hiding bars eg:

class BarHideOnTapButton : UIButton {
    weak var navigationController: UINavigationController?

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesBegan(touches, with: event)
        self.navigationController?.hidesBarsOnTap = false
    }

    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesEnded(touches, with: event)
        self.navigationController?.hidesBarsOnTap = true
    }
}

class ViewController: UIViewController {
    @IBOutlet var button: BarHideOnTapButton?

    override func viewDidLoad() {
        super.viewDidLoad()

        self.button?.navigationController = self.navigationController

        self.navigationController?.hidesBarsOnTap = true
    }
...
}