private void DrawRoute(ServerResponse serverResponse)
{
// Remove current route.
if (_mapRoute != null)
{
_mapRoute.Remove();
}
// Create new route and add it to map.
_mapRoute = new MapRoute(_map, serverResponse.response);
}
public MapRoute(GoogleMap map, ServerResponse.ResponseRoute[] responseRoutes)
{
var numberOfRoutes = responseRoutes.Length * 2 - 1;
_map = map;
_mapRoutes = new List<Polyline>();
_mapStations = new List<Marker>();
var l = 1;
for (var i = 0; i < numberOfRoutes; i++)
{
// Create new partial route.
if (i % 2 == 0)
{
// Choose color;
Color color = Color.DodgerBlue;
// Create polyline.
var polyline = new PolylineOptions();
polyline.InvokeWidth(4f);
polyline.InvokeColor(color);
// Add points to polyline.
int k = i / 2;
ServerResponse.ResponseRoute responseRoute = responseRoutes[k];
for (var j = 0; j < responseRoute.pointsId.Length; j++)
{
string stationId = responseRoute.pointsId[j];
Station station = App.Database.GetStationById(stationId);
if (station != null && station.latitude != 0f && station.longitude != 0f)
{
var latlng = new Android.Gms.Maps.Model.LatLng(station.latitude, station.longitude);
polyline.Add(latlng);
// Create marker.
var marker = new MarkerOptions();
marker.SetPosition(latlng);
marker.SetTitle(l++ + ". " + station.postName);
marker.Draggable(false);
marker.SetSnippet("ul. " + station.street + "\n"+ "linia: " + responseRoute.variantId);
_mapStations.Add(_map.AddMarker(marker));
}
}
// Add polyline to map.
_mapRoutes.Add(_map.AddPolyline(polyline));
}
// Create connection between two routes.
else
{
// Choose color;
Color color = Color.LightSkyBlue;
// Create polyline.
PolylineOptions polyline = new PolylineOptions();
polyline.InvokeWidth(3f);
polyline.InvokeColor(color);
// Add points to polyline (closest, non 0f points).
// Last point from previous route.
int k = i / 2;
for (var j = 0; j < responseRoutes[k].pointsId.Length; j++)
{
string prevStationId = responseRoutes[k].pointsId[responseRoutes[k].pointsId.Length - 1 - j];
Station prevStation = App.Database.GetStationById(prevStationId);
if (prevStation != null && prevStation.latitude != 0f && prevStation.longitude != 0f)
{
polyline.Add(new Android.Gms.Maps.Model.LatLng(prevStation.latitude, prevStation.longitude));
break;
}
}
// 1st point from next route.
k++;
for (var j = 0; j < responseRoutes[k].pointsId.Length; j++)
{
string nextStationId = responseRoutes[k].pointsId[j];
Station nextStation = App.Database.GetStationById(nextStationId);
if (nextStation != null && nextStation.latitude != 0f && nextStation.longitude != 0f)
{
polyline.Add(new Android.Gms.Maps.Model.LatLng(nextStation.latitude, nextStation.longitude));
break;
}
}
// Add polyline to map.
_mapRoutes.Add(_map.AddPolyline(polyline));
}
}
}
