Swift - 从滑入式菜单中打开 UIViewController

Question

我有一个滑入式菜单，当我按下导航栏中的菜单按钮时，它会自动显示。可以通过点击背景或菜单本身来关闭它。在此 View 中，我有几个项目，其中之一是用户配置文件按钮。当我按下此按钮时，我希望菜单自行消失，然后立即打开用户配置文件 View Controller 。这就是为什么我先调用handleDismiss()，然后设置需要打开的 View

但是，它一直告诉我该 View 不在窗口层次结构中。我知道问题是什么(查看堆栈)，但我不知何故无法让它正常工作。我该如何解决这个问题？

RootViewController -> HomeController(tabBar 索引 0) -> 滑入式菜单 -> UserProfileController

打开 Controller 的按钮

profileCell.profileButton.addTarget(self, action: #selector(handleUserProfile(sender:)), for: .touchUpInside)

函数

func handleDismiss() {
    UIView.animate(withDuration: 0.5) {
        self.blackView.alpha = 0

        if let window = UIApplication.shared.keyWindow {
            self.collectionView.frame = CGRect(x: 0, y: window.frame.height, width: self.collectionView.frame.width, height: self.collectionView.frame.height)
        }
    }
}

func handleUserProfile(sender: UIButton) {
    handleDismiss()

    let userProfileController = UserProfileController()
    openProfileController(userProfileController)
}

func openProfileController(_ controller: UIViewController) {
   present(controller, animated: false, completion: nil)
}

Answer 1

我通过在菜单中设置对 rootViewController 的引用解决了该问题。

家庭 Controller

let menuLauncher = MenuLauncher()

func tappedMenu(sender: UIButton) {
    menuLauncher.showMenu(self)
}

菜单 Controller

func MenuLauncher() {
    self.m_ParentViewController = nil
}

func showMenu(_ parentViewController: UIViewController) {
    self.m_ParentViewController = parentViewController

    collectionView.dataSource = self
    collectionView.delegate = self

    collectionView.register(MenuLauncherImageCell.self, forCellWithReuseIdentifier: cellIdImage)
    collectionView.register(MenuLauncherInfoCell.self, forCellWithReuseIdentifier: cellIdInfo)

    if let window = UIApplication.shared.keyWindow {
        blackView.backgroundColor = UIColor(white: 0, alpha: 0.5)

        blackView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleDismiss)))

        window.addSubview(blackView)
        window.addSubview(collectionView)

        collectionView.frame = CGRect(x: 0, y: window.frame.height, width: window.frame.width, height: 350)

        blackView.frame = window.frame
        blackView.alpha = 0

        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseOut, animations: {
            self.blackView.alpha = 1
            self.collectionView.frame = CGRect(x: 0, y: window.frame.height - 350, width: self.collectionView.frame.width, height: self.collectionView.frame.height)

        }, completion: nil)
    }
}

func handleDismiss() {
    UIView.animate(withDuration: 0.5) {
        self.blackView.alpha = 0

        if let window = UIApplication.shared.keyWindow {
            self.collectionView.frame = CGRect(x: 0, y: window.frame.height, width: self.collectionView.frame.width, height: self.collectionView.frame.height)
        }
    }
}

func handleUserProfile(sender: UIButton) {
    handleDismiss()

    let userProfileController = UserProfileController()
    self.m_ParentViewController?.present(userProfileController, animated: true, completion: nil)
}