//add route to listBox and routeStopsList
private async void addRoute(int timetable_id)
{
RouteStops tempRouteStopData = await GetRouteStops.API_Call(timetable_id.ToString());
RoutesListBox.Items.Add(tempRouteStopData.route.long_name);
routeStopsList.Add(tempRouteStopData);
}
//list box event listener
private void RoutesListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//if no route has been made
if (!madeRoute)
{
RouteStops foundRoute = new RouteStops();
//loop through routeStops list
for (int i = 0; i < routeStopsList.Count; i++)
{
//find selected route
if ((string)RoutesListBox.SelectedItem == routeStopsList[i].route.long_name)
{
madeRoute = true;
foundRoute = routeStopsList[i];
//pass route stops into makePolyLine
makePolyLine(foundRoute);
break;
}
}
}
else
{
if ((string)RoutesListBox.SelectedItem == "Delete Route")
{
//remove polyline
MyMap.MapElements.Remove(polyline);
madeRoute = false;
}
}
}
//make polyline. Adapted from: https://blogs.windows.com/buildingapps/2016/04/18/map-apis-and-controls-adding-external-elements/#2E3O6xjTJS6xIQHT.97
private void makePolyLine(RouteStops routeStops)
{
List <List <Stops> > allStops = routeStops.stops;
//loop through allStops
for (int i = 0; i < allStops.Count; i++)
{
List <Stops> theStops = allStops.ElementAt(i);
polyline = new MapPolyline();
//define line
polyline.StrokeColor = Colors.OrangeRed;
polyline.StrokeThickness = 2;
polyline.StrokeDashed = true;
//create path
List <BasicGeoposition> geoPositions = new List <BasicGeoposition>();
//loop through theStops
for (int j = 0; j < theStops.Count(); j++)
{
//find a stop
Stops aStop = theStops.ElementAt(j);
//add geoPositions to path
geoPositions.Add(new BasicGeoposition()
{
Latitude = aStop.latitude, Longitude = aStop.longitude
});
}
polyline.Path = new Geopath(geoPositions);
//add polyline to map
MyMap.MapElements.Add(polyline);
}
}