A sample for using DrawRoute Library.

DrawRoute Usage.kt

    override fun onMapReady(p0: GoogleMap?) {
        this.googleMap = p0

        val source = LatLng(31.490127, 74.316971) //starting point (LatLng)
        val destination = LatLng(31.474316, 74.316112) // ending point (LatLng)

        googleMap?.run {
            moveCameraOnMap(latLng = source)

            //Called the drawRouteOnMap extension to draw the polyline/route on google maps
           disposable =  drawRouteOnMap(
                getString(R.string.google_map_api_key),
                source = source,
                destination = destination,
                context = context!!
            )
        }
    }

    override fun onDestroy() {
        disposable?.dispose()
        super.onDestroy()

    }