swift - 如何在spritekit中检测双击

Question

我在 touchesBegan 中使用这个 touch.tapCount 并尝试打印该值，但它永远不会返回 2。

知道为什么吗？它可以是 1,3,,5,7,9, .... 但不是 2,4,6,8,10, ...

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {


    if let touch = touches.first {
        //print(touch.tapCount)
        if ((touch.tapCount) == 1) {
            player.animatedPlayer()
            jump = true
        }
    }

}

Answer 1

您应该使用 UITapGestureRecognizer 来处理 tapEvent。numberOfTapsRequired 属性使它只检测 DoubleTap

 override func viewDidLoad() {
     super.viewDidLoad()
     var tap = UITapGestureRecognizer(target: self, action: 
     #selector(self.handleTapGesture(gesture:)))
     tap.numberOfTapsRequired = 2
     self.scene?.view?.addGestureRecognizer(tap)
 }

 @objc func handleTapGesture(gesture: UITapGestureRecognizer) -> Void {
    // do something here
 }

希望有帮助!