覆盖 UIGestureRecognizer touchesBegan

Question

我有 1 个主视图和 1 个子视图：

主视图 > 子视图

我认为主视图正在“窃取”来自 SubView 的事件。

例如，当我点击 SubView 时，只有 Main View GestureRecognizer 会触发。

这是我的自定义 GestureRecognizer（拦截每个触摸事件）：

import UIKit
import UIKit.UIGestureRecognizerSubclass

class MainGestureRecognizer: UIGestureRecognizer {
    
    override func touchesBegan(touches: NSSet!, withEvent event: UIEvent!) {
        super.touchesBegan(touches, withEvent: event);
        //nextResponder() ??
        
        state = UIGestureRecognizerState.Began;
    }
 
    override func touchesMoved(touches: NSSet!, withEvent event: UIEvent!) {
        super.touchesMoved(touches, withEvent: event);
        //nextResponder() ??
        
        state = UIGestureRecognizerState.Changed;
    }
 
    override func touchesEnded(touches: NSSet!, withEvent event: UIEvent!) {
        super.touchesEnded(touches, withEvent: event);
        //nextResponder() ??
        
        state = UIGestureRecognizerState.Ended;
    }
 
    override func touchesCancelled(touches: NSSet!, withEvent event: UIEvent!) {
        super.touchesCancelled(touches, withEvent: event);
        //nextResponder() ??
        
        state = UIGestureRecognizerState.Cancelled;
    }
}

也许我应该使用 nextResponder，但我只找到了 Obj-C 代码，例如：

[self.nextResponder touchesBegan:touches withEvent:event];

What's the trick to pass an event to the next responder in the responder chain?

Is there a way to pass touches through on the iPhone?

所以问题是，我应该怎么做才能让第二个事件（SubView 事件）也触发？

在 Swift 中有没有类似 nextResponder 的函数？

Answer 1

噢！这是 nextResponder 的 Swift 代码：

https://stackoverflow.com/a/26510277/4135158