触摸背景时 Swift Popover 关闭

Question

我有一个正在调用的弹出框，我希望关闭弹出框的唯一方法是单击“关闭”按钮，而不是点击背景。目前我启动弹出框的代码是这样的：

 let popover = storyboard?.instantiateViewController(withIdentifier: "PopoverVC") as! PopOverViewController

        popover.modalPresentationStyle = .popover
        popover.popoverPresentationController?.delegate = self as? UIPopoverPresentationControllerDelegate


        popover.popoverPresentationController?.sourceView = self.view
        popover.popoverPresentationController?.sourceRect = CGRect(x: self.view.bounds.midX, y: self.view.bounds.midY, width: 0, height: 0)

        popover.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection(rawValue: 0)

        popoverPresentationController?.passthroughViews = nil



        dimView.isHidden = false

        popover.dimView = self.dimView

        self.present(popover, animated: false)

我在背景中有一个 UIview，当弹出框出现时我用来使背景变暗，但是当您点击背景时，它会关闭弹出框。如何保持弹出窗口打开？我认为popoverPresentationController?.passthroughViews = nil 应该可以解决这个问题，但它没有。

编辑：

添加我的 PopOverViewController 类：

    class PopOverViewController: UIViewController, UIPopoverPresentationControllerDelegate {


    var dimView:UIView?

    override func viewDidLoad() {
        super.viewDidLoad()


        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


    func popoverPresentationControllerShouldDismissPopover(_ popoverPresentationController: UIPopoverPresentationController) -> Bool {

        print ("test")

        return false
    }


    @IBAction func closeButton(_ sender: Any) {

        self.dismiss(animated: false, completion: nil)

        dimView?.isHidden = true


    }

}

Answer 1

您需要使用演示控制器的委托。您已经分配了self，只需实现以下委托方法即可。

extension SelfsType: UIPopoverPresentationControllerDelegate {

    func popoverPresentationControllerShouldDismissPopover(_ popoverPresentationController: UIPopoverPresentationController) -> Bool {
       /* This disables the automatic dismissal, but you can make it conditional, too. Such as if the user entered enough information, etc */
       return false
    }
}

其中SelfsType 是self 的类，在

的上下文中使用

popover.popoverPresentationController?.delegate = self as? UIPopoverPresentationControllerDelegate

你的代码不包含那个。