Ios 如果涉及superview，则不排除带有子视图的UIScrollView点击

因此，我试图创建一个界面，其中基本上有3个可能的视图级别

UIView负责决定新单元的元数据

细胞本身

背景UIScrollView

所有内容都是UIScrollView的子项，但1显示在2的顶部

目标是所有单元格都可以拖动，滚动视图可以滚动。但是，当点击滚动视图时，应触发新节点的创建，从而出现视图1，该视图将在按下提交按钮后消失

除了我有一个大问题外，我几乎什么都准备好了。如果我点击一个单元格，我仍然会得到创建视图，这意味着TapGestureRecognitor不排除子视图。下面是大致设置的内容：

class Node: UILabel {

    var recognizer:UIPanGestureRecognizer?
    init() {
        self.isExclusiveTouch = true
        self.isUserInteractionEnabled = true

        recognizer = UIPanGestureRecognizer(target: self, action: #selector(drag))
        self.addGestureRecognizer(recognizer!)
    }

    @objc
    func drag(rec: UIPanGestureRecognizer) {
        goToPoint(point: rec.location(in: self.superview!))
    }

    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
        var shouldReceive = false
        if let clickedView = touch.view {
            if clickedView == self {
                shouldReceive = true;
            }
        }
        return shouldReceive
    }
}

class NodeCreator: UIView {

    var submit: UIButton = UIButton(type: UIButton.ButtonType.roundedRect)

    init() {
        super.init(frame: CGRect.zero)

        submit.setTitle("Submit", for: .normal)
        submit.translatesAutoresizingMaskIntoConstraints = false
        submit.addTarget(self, action: #selector(press), for: .touchUpInside)
        self.addSubview(submit)
    }

    @objc func press() {
        if let d = delegate {
            if let t = inputField.text {
                d.created(title: t, pt: storeP)
                self.removeFromSuperview()
            }
        }
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}
class TaskView: UIScrollView, CreationDelecate{

    func created(title: String, pt: CGPoint) {
        let temp = Node()
        view.addNode(temp, at: pt)
    }

    var tapRecognizer:UITapGestureRecognizer?

    var nodeSet:[Node] = []
    func addNode(_ n1: Node, at: CGPoint = CGPoint.zero) {
        nodeSet.append(n1)
        n1.goToPoint(point: at)
        self.addSubview(n1)
        self.bringSubviewToFront(n1)

        self.isScrollEnabled = true
        self.isUserInteractionEnabled = true
        self.isExclusiveTouch = false

        self.canCancelContentTouches = false

        if (tapRecognizer == nil) {
            tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(tap))
            self.addGestureRecognizer(tapRecognizer!)
        }
    }

    @objc func tap(rec: UITapGestureRecognizer) {
        let pos = rec.location(in: self)
        let creator = NodeCreator(pt: pos)
        creator.delegate = self
        self.addSubview(creator)
    }

    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
        var shouldReceive = false
        if let clickedView = touch.view {
            if clickedView == self {
                shouldReceive = true;
            }
        }
        return shouldReceive
    }
}

---

当所有节点都是独占触摸时，为什么TaskView仍接收点击手势。

代码不起作用，因为您没有为手势识别器分配代理。委托函数在节点和TaskView类中实现。但是您没有将类声明为委托，即

class TaskView: UIScrollView, CreationDelecate, UIGestureRecognizerDelegate

然后将代理指定给手势识别器：

recognizer.delegate = self as! UIGestureRecognizerDelegate

---

应能工作

独占触摸意味着当您触摸此特定视图时，其他视图将不会接收后续的其他触摸。但是，如果您未触摸已将exclusive touch属性设置为true的视图，触摸其他视图仍将触发触摸事件。因此，您需要做的是，查找UIgestureRecognitizerDelegate方法，设置委托，并以这样的方式进行配置：如果节点接收到触摸，TaskView未收到该邮件。您能否共享一个邮政编码，以便我可以尝试？