我无法使用触摸开始/移动/结束和 UITapGestureRecognition 器

Question

是不是不能同时使用这两个？最初，我已经覆盖了（Swift）触摸在我的ViewController中开始/移动/结束。

现在，我想在特定情况下向某些视图添加一个 TapGestureRecognizer，但选择器/操作永远不会被触发。

class ViewController: UIViewController, UIGestureRecognizerDelegate {
...
func addTapGesturesOnNumberPadDisplay() {
    if tapGestureRecognizerNumberPadView == nil {
        tapGestureRecognizerNumberPadView = UITapGestureRecognizer(target: self, action: "handleTap:")
        tapGestureRecognizerNumberPadView!.delegate = self
        self.numberViewDone?.addGestureRecognizer(tapGestureRecognizerNumberPadView!)
    }
}
...
func handleTap(sender: UITapGestureRecognizer) {
    //never hit

这不可能吗？我应该只在触摸中实现我自己的点击功能开始了，因为我无论如何都要覆盖它，或者有没有办法在这里也使用 tapGestureRecognizer？

Answer 1

由于您在视图控制器中覆盖了触摸开始/移动/结束，因此它应该不会对其他子视图中的点击手势产生任何影响。理想情况下，它应该有效。请检查下面的代码，按预期工作。

class ViewController: UIViewController, UIGestureRecognizerDelegate {
@IBOutlet weak var categoryScrollView: UIScrollView!
var customView: UIView!
var tapGestureRecognizerNumberPadView : UITapGestureRecognizer?
override func viewDidLoad() {
    super.viewDidLoad()
    customView = UIView()
    customView.frame.origin = CGPointMake(50,50)
    customView.frame.size = CGSizeMake(100, 100)
    customView.backgroundColor = UIColor.blueColor()
    self.view.addSubview(customView)
    addTapGesturesOnNumberPadDisplay()
}
func addTapGesturesOnNumberPadDisplay() {
    if tapGestureRecognizerNumberPadView == nil {
        tapGestureRecognizerNumberPadView = UITapGestureRecognizer(target: self, action: "handleTap:")
        tapGestureRecognizerNumberPadView!.delegate = self
        self.customView?.addGestureRecognizer(tapGestureRecognizerNumberPadView!)
    }
}
func handleTap(sender: UITapGestureRecognizer) {
    print("handleTap")
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
}

}

请检查是否有任何其他手势来查看"数字视图完成"。