I'm struggling with detecting a tap on a GMSPolyline drawn on my Google map, it works just fine with GMSpolygones, but the same approach doesn't seem to work with polyline. My current approach, which works for polygones, is:
if (GMSGeometryContainsLocation(coordinate, polygon.path!, false)) { ... } Any suggestions how to detect taps on a polyline? Or just close to it?
According to their API documentation, GMSPolyline inherits from GMSOverlay which means a GMSPolyline has the property tappable. So you'd want something like this
let polyLine: GMSPolyline = GMSPolyline(path: newPath) polyLine.isTappable = true polyline.map = yourGoogleMap Then your GMSMapViewDelegate should notify you of the tap anywhere within the GMSPolyline layer with this function
func mapView(_ mapView: GMSMapView, didTap overlay: GMSOverlay) { print("User Tapped Layer: \(overlay)") } You can use isTappable property of GMSPolyline.
isTappable
If this overlay should cause tap notifications.
polyline.isTappable = true
GMSPolyline inherits from GMSOverlay. So to detect tap on overlays GMSMapViewDelegate provides a delegate method:
- mapView:didTapOverlay: Called after an overlay has been tapped.
Whenever the polyline is tapped, the GMSMapViewDelegate method didTapOverlay is called
func mapView(_ mapView: GMSMapView, didTap overlay: GMSOverlay) { //Write your code here } Also, this method can be used for GMSPolygon since it also inherits from GMSOverlay.
For further information refer https://developers.google.com/maps/documentation/ios-sdk/reference/protocol_g_m_s_map_view_delegate-p.html#a3a2bf2ff4481528f931183cb364c0f4b