GMS map view myLocation button action iOS Swift

In GMS map view when you try with the following.

        self.maps.isMyLocationEnabled = true

Then it will display myLocation button.When you tap that it will zoom the camera to your current location.But you cannot manually implement the action method.So it is better to manually add the button and set the actions.When you want to display the marker to current location if the user taps on the myLocation button then follow the below code.

    var currentmarker = GMSMarker()

Above class declare the marker as common.

    @IBAction func didTapOnMyLocation(_ sender: Any) {

//This code is used for move the marker to the user based location

        if CLLocationCoordinate2DIsValid(currentmarker.position) {

            currentmarker.position = (self.maps.myLocation?.coordinate)!

            currentmarker.snippet = self.getAddressForLatLng(latitude: String(currentmarker.position.latitude), longitude:String(currentmarker.position.longitude))

            self.maps.selectedMarker = currentmarker

            let camera  = GMSCameraPosition.camera(withLatitude: currentmarker.position.latitude, longitude: currentmarker.position.longitude, zoom: 20)

            self.maps.camera = camera

        } else {

//This code is used to create a marker in the user location

            currentmarker = GMSMarker(position: (self.maps.myLocation?.coordinate)!)

            currentmarker.appearAnimation = kGMSMarkerAnimationPop

            currentmarker.position = (self.maps.myLocation?.coordinate)!

            currentmarker.title = "Add Note"

            currentmarker.snippet = self.getAddressForLatLng(latitude: String(currentmarker.position.latitude), longitude:String(currentmarker.position.longitude))

            currentmarker.icon = GMSMarker.markerImage(with:UIColor.green)

            currentmarker.infoWindowAnchor = CGPoint(x: 0.5, y: 0.5)

            currentmarker.map = self.maps

            let camera  = GMSCameraPosition.camera(withLatitude: currentmarker.position.latitude, longitude: currentmarker.position.longitude, zoom: 20)

            self.maps.camera = camera

        }

    }