Get the start point and end point of the UIPanGestureRecognizer in Swift

问题

I'm using UIPanGestureRecognizer on a project, and I want to take the starting point and the end point.

I tried to do for touchesBegin, but did not get a code that does what I need.

How can I get the start point and end point of the UIPanGestureRecognizer?

回答1:

For your case, you might want to include the code inside my function into your IBAction for the panGesture. Here I've created a view, but otherwise you would just be referring to self.view instead of 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)
 }

}

来源：https://stackoverflow.com/questions/34067087/get-the-start-point-and-end-point-of-the-uipangesturerecognizer-in-swift