void AddPolyline1()
        {
            var existingPolyline = mMapView.FindPolylineByTag(1000);

            if (existingPolyline != null)
            {
                mMapView.RemovePolyline(existingPolyline);
            }

            var polyline1 = new MapPolyline();

            polyline1.Tag       = 1000;
            polyline1.LineColor = Color.Argb(128, 255, 51, 0);
            polyline1.AddPoint(MapPoint.MapPointWithGeoCoord(37.537229, 127.005515));
            polyline1.AddPoint(MapPoint.MapPointWithGeoCoord(37.545024, 127.03923));
            polyline1.AddPoint(MapPoint.MapPointWithGeoCoord(37.527896, 127.036245));
            polyline1.AddPoint(MapPoint.MapPointWithGeoCoord(37.541889, 127.095388));
            mMapView.AddPolyline(polyline1);

            var mapPointBounds = new MapPointBounds(polyline1.GetMapPoints());
            int padding        = 100; // px

            mMapView.MoveCamera(CameraUpdateFactory.NewMapPointBounds(mapPointBounds, padding));
        }