Swift - GoogleMaps SDK get coordinates on touch

Question

I am new to swift and the Google Maps SDK, and was wondering how to get the coordinates of where the user has tapped using the Google Maps SDK. For example if a user holds their finger down on a certain place on a map, a annotation is created there. I would really appreciate your help, thanks.

Answer 1

In the GMSMapViewDelegate there is a method named: mapView:didLongPressAtCoordinate: which is called after a long-press gesture at a particular coordinate. See the reference here.

By implementing this method you could then add a marker to the map view:

func mapView(mapView: GMSMapView!, didLongPressAtCoordinate coordinate: CLLocationCoordinate2D) {
     let marker = GMSMarker(position: coordinate)
     marker.title = "Hello World"
     marker.map = mapView
}

For a tap gesture a similar delegate method can be implemented called mapView:didTapAtCoordinate: which can be used in a similar way:

func mapView(mapView: GMSMapView!, didTapAtCoordinate coordinate: CLLocationCoordinate2D) {
     print("Tapped at coordinate: " + String(coordinate.latitude) + " " 
                                    + String(coordinate.longitude))
}