Swift：如何将 CGPoint 转换为 CLLocationCoordinate2D

Question

I have the below code, and am trying to add annotation for a longpress on the map. The locationInView is of type 'CGPoint' whereas the 'annotation.coordinate' expects variable of type CLLocationCoordinate2D. whats the right method to convert CGPoint to CLLocationCoordinate2D ?

 func myGestureFunc(thegesture: UIGestureRecognizer) {

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


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


        theMap.addAnnotation(annotation)

}

Answer 1

You should use convertPoint along the lines of:

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

Answer 2

由于 convertPoint() 方法不再可用，可以使用以下代码：

let coordinate = googleMapView.projection.coordinate(for: point)