How to set fixed Marker position in Google MapView iOS - ios

Question

Here I'm working on mapKitView using GoogleMapKit and here i want to do when the user drag the marker by using of didBeginDragging, didDragging and didEndDragging
and release the marker at any location point of the screen. I found a helping content to fixed the marker in screen from Hugo Jordao's answer, but this only works to fixed marker position in the center of the screen only.So how can i set marker at any specific screen point??
Dragging Method
func mapView(_ mapView: GMSMapView, didEndDragging marker: GMSMarker) {
if marker == mapMarker{
self.markerPosition = GMSCameraPosition(latitude: marker.position.latitude, longitude: marker.position.longitude, zoom: 5.0)
print("End Dragging")
}
}
Set Marker center to the Screen
func mapView(_ mapView: GMSMapView, didChange position: GMSCameraPosition) {
if self.markerPosition == nil{
mapMarker.position = position.target
}else{
mapMarker.position = self.markerPosition.target
}
}

Answer 1

Answering my own question.
First added variable to store the location value in CGPoint
var markerPosition : CGPoint!
Then convert CLLocationCoordinate2D Location values into the CGPoint and store into markerPosition in didEndDragging marker method.
func mapView(_ mapView: GMSMapView, didEndDragging marker: GMSMarker) {
if marker == mapMarker{
self.markerPosition = self.mapView.projection.point(for: CLLocationCoordinate2D(latitude: marker.position.latitude, longitude: marker.position.longitude))
print("End Dragging")
}
}
After that set GMSMarker position at any screen point as per CGPoint values into the MAPView
func mapView(_ mapView: GMSMapView, didChange position: GMSCameraPosition) {
if self.markerPosition == nil{
//To set pin into the center of mapview
mapMarker.position = position.target
}else{
//To set pin into the any particular point of the screen on mapview
let coordinate = self.mapView.projection.coordinate(for: self.markerPosition)
mapMarker.position = coordinate
}
}