ios - Swift:如何将 CGPoint 转换为 CLLocationCoordinate2D

Question

我有以下代码，正在尝试为 map 上的长按添加注释。 locationInView 的类型为“CGPoint”，而“annotation.coordinate”需要 CLLocationCoordinate2D 类型的变量。将 CGPoint 转换为 CLLocationCoordinate2D 的正确方法是什么？

 func myGestureFunc(thegesture: UIGestureRecognizer) {

        let pointOfInterest = thegesture.locationInView(self.theMap) //CGPoint


       let annotation = MKPointAnnotation()
        annotation.coordinate = //expects CLLocationCoordinate2D


        theMap.addAnnotation(annotation)

}

Answer 1

您应该按照以下方式使用 convertPoint:

let touchPoint = thegesture.locationInView(self.theMap)
let newCoordinate = self.theMap.convertPoint(touchPoint, toCoordinateFromView:self.theMap)
let annotation = MKPointAnnotation()
annotation.coordinate = newCoordinate
theMap.addAnnotation(annotation)