title: How can I fix marker and GMSCircle on the center in Google Maps ios?
body: <p>I want to fix the marker and the circle of it in the center of the map irrespective of the location coordinates using swift. If the user moves the camera on map I want it to keep showing up in the center without any flickering in radius or the marker and user should be able to increase and decrease the radius of the circle.
  I used <pre>circle.position = mapView.camera.target</pre> but it didn't help.
  So I wanna know how can I do that?
  Please help.</p>