关于swift：Pan手势和Tap手势之间的冲突

 

Conflict between Pan Gesture and Tap Gestures

 

我目前正在开发使用UIGestureRecognizers的游戏。 我正在使用平移手势来移动播放器，点击手势来检测其他UI按钮的触摸。 除了这两个手势之间存在冲突之外，其他所有操作似乎都正常。 每当玩家移动时(识别出平移手势)，游戏都会忽略我所有的轻击手势(一旦识别了平移手势，视图将不会识别出轻击手势)。
有人可以告诉我如何使这两个手势一起工作吗？ 我希望播放器在UI按钮被点击时停止移动。 换句话说，我希望在识别到轻击手势时取消平移手势。

提前非常感谢您！

这是我设置2个手势的方法：

let singleTap = UITapGestureRecognizer(target: self, action: #selector(doSingleTap))
    singleTap.numberOfTapsRequired = 1
    singleTap.delegate = self
    self.view?.addGestureRecognizer(singleTap)


   let panGesture = UIPanGestureRecognizer(target: self, action: #selector(handlePan))
    panGesture.minimumNumberOfTouches = 1
    panGesture.delegate = self
    self.view?.addGestureRecognizer(panGesture)


@objc func handlePan(gestureReconizer: UIPanGestureRecognizer) {

    if isPaused || player.isInAction {return}

    let translation = gestureReconizer.translation(in: self.view)

    if gestureReconizer.state == .changed {
        let angle = 180 + (atan2(-translation.x, translation.y) * (180/3.14159))
        player.movementAngle = angle
        player.atState = .Walk
    }
    if gestureReconizer.state == .ended {
        player.movementAngle = 0.0
        if player.atState == .Walk {
            player.atState = .Idle
        }
    }
}



@objc func doSingleTap(gestureReconizer: UITapGestureRecognizer) {

    let originaTapLocation = gestureReconizer.location(in: self.view)

    let location = convertPoint(fromView: originaTapLocation)
    let node = atPoint(location)

        switch node.name {
        case"HeroAvatar":
            //do stuff here
            break

        case"Fire":

            //do stuff here
            break

        case"Potion":
            //do stuff here
            break

        default:
            break
        }
}

您需要实现UIGestureRecognizerDelegate的委托方法，如下所示： 

func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer,
                       shouldRequireFailureOf otherGestureRecognizer: UIGestureRecognizer) -> Bool {

    // Don't recognize a single tap gesture until a pan gesture fails.
    if gestureRecognizer == singleTap &&
        otherGestureRecognizer == panGesture {
        return true
    }
    return false
}

 

 

本文地址：https://blog.csdn.net/box_kun/article/details/108734157