获取Swift中UIPanGestureRecognizer的起点和终点

Question

我正在使用UIPanGestureRecognizer一个项目,我想采取起点和终点.

我试图做touchesBegin,但没有得到我需要的代码.

我怎样才能得到起点和终点UIPanGestureRecognizer？

Answer 1

对于您的情况,您可能希望将我的函数中的代码包含在panGesture的IBAction中.在这里,我创建了一个视图,但除此之外你只是指self.view而不是view.

var view = UIView()

func panGestureMoveAround(gesture: UIPanGestureRecognizer) {

 var locationOfBeganTap: CGPoint

 var locationOfEndTap: CGPoint

 if gesture.state == UIGestureRecognizerState.Began {

     locationOfBeganTap = gesture.locationInView(view)

 } else if gesture.state == UIGestureRecognizerState.Ended {

    locationOfEndTap = gesture.locationInView(view)
 }

}