How to delete the shape(circle) on google map when tap on marker?

Question

我可以在“ didTapAt”事件中在Google地图上添加许多标记和圆圈，但是我也要删除它们，对于标记，我可以在“ didTap marker”事件中执行此操作，但是如何删除其形状而不是其他形状？

Answer 1

let circle = GMSCircle(position: CLLocationCoordinate2D(latitude: 40.7336299, longitude: 30.1616061, radius: 10)
 circle.isTappable = true
 circle.map = mapView

func mapView(_ mapView: GMSMapView, didTap overlay: GMSOverlay) {
    overlay.map = nil
}