当导航按钮按下swift 4时隐藏自定义中间按钮

你好像打错了。使用super.ViewDid消失()

override func viewDidDisappear(_ animated: Bool) {
    //super.viewDidAppear(animated)
    super.viewDidDisappear(animated)
    hidesBottomBarWhenPushed = true
    centerButton.isHidden = true
}

推。重要的是要注意,在 viewDidLoad

class PushedVC: UIViewController {

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        sharedInit()
    }

    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
        sharedInit()
    }

    private func sharedInit() {
        hidesBottomBarWhenPushed = true
    }

}

当然你也可以检查一下复选标记 Hide Bottom Bar on Push 在使用序列图像板时用于特定的视图控制器。

在这种方法中,为了确保中心按钮与选项卡栏一起隐藏/显示,您必须将其添加为选项卡栏的子视图 UITabBar hitTest 要使其完全可点击(当然,仅当按钮超出选项卡栏的框架时才需要):

class TabBar: UITabBar {

    let centerButton = ...

    // ...

    override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
        if centerButton.frame.contains(point) {
            return centerButton
        }

        return super.hitTest(point, with: event)
    }

    // ...

}