Is it possible to add overlays on Google's Map API similar to MKOverlay in MapKit?

Question

我们正在尝试使用适用于iOS的新版Google Maps API，我们需要能够添加类似于MKOverlay在Apple MapKit中所做的叠加层。

Answer 1

      let poly = GMSMutablePath()

    poly .addCoordinate(CLLocationCoordinate2DMake(newLocation.coordinate.latitude, newLocation.coordinate.longitude))

    let polygon = GMSPolygon()
        polygon .path = poly
    polygon.fillColor = UIColor.greenColor()

    polygon.strokeWidth = 4
     polygon.strokeColor = UIColor .redColor()
    polygon.map = self.mapView