swift - 通过点击任意位置关闭侧边菜单

Question

我使用容器 View 创建了一个侧边菜单。每次我按下菜单时，它都会在主视图中滑动。你可以在这里找到我的项目: https://github.com/marybnq/side-menu

我需要通过点击 mainVC 中的任意位置来关闭它。我该怎么做？

Answer 1

试试这个:

class FirstViewController: UIViewController {

@IBOutlet weak var menuConstraint: NSLayoutConstraint!

var sideMenuOpen = false
var gesture : UITapGestureRecognizer?


override func viewDidLoad() {
    super.viewDidLoad()
    NotificationCenter.default.addObserver(self,
                                           selector: #selector(toggleSideMenu), name: NSNotification.Name("ToggleSideMenu"), object: nil)


    gesture = UITapGestureRecognizer(target: self, action: #selector(FirstViewController.toggleSideMenu))

}
@objc func toggleSideMenu() {
    if sideMenuOpen {
        sideMenuOpen = false
        menuConstraint.constant = -240
        self.view.removeGestureRecognizer(gesture!)
    } else {
        sideMenuOpen = true
        menuConstraint.constant = 0
        self.view.addGestureRecognizer(gesture!)
    }

}

}