在MKAnnotation标注Swift上创建一个文本字段

Question

I'd like to make an editable callout, and from a quick look it seems like the best way is to create a textfield over it in the view. So, I was wondering how to get the CGPoint of an annotation so that I can use it in placing my CGRect of a textfield. This is the code I'm using to display an annotation at a tapped point, how would one do the reverse? If anyone suggests better ways to create an editable callout, I'm welcome to suggestions

 var point:CGPoint = gestureRecognizer.locationInView(self.Map)

  EventLoc = self.Map.convertPoint(point, toCoordinateFromView: self.Map)

Answer 1

I'm not too familiar with Swift yet, but independent from the language, MKMapView has a method convertCoordinate:toPointToView: which you can use to convert a CLLocationCoordinate2D to a CGPoint .

EDIT

From the MKMapView reference :

Converts a map coordinate to a point in the specified view.

So in your case the last argument should be your map view:

The view in whose coordinate system you want to locate the specified map coordinate. If this parameter is nil, the returned point is specified in the window's coordinate system. If view is not nil, it must belong to the same window as the map view.