private void bindStartSelectButtonDelegates(Button start, Button select,
AutoCompleteTextView originBox, AutoCompleteTextView destinationBox)
{
select.Click += async delegate
{
//Gets the coordinates for the origin and destination points
double[] originCoords = mbi.ConvertAddressToGpsCoordinates(originBox.Text, map.MyLocation.Latitude, map.MyLocation.Longitude);
double[] destinationCoords = mbi.ConvertAddressToGpsCoordinates(destinationBox.Text, map.MyLocation.Latitude, map.MyLocation.Longitude)
;
//Clears old routes
Tools.clearRoutes(map);
//Asks Otp for response based on the origin and destination
otpResponse = await OtpAPI.Query(originCoords, destinationCoords);
//Plots the first two routes in the response
Tools.plotRoute(otpResponse, map, 2, colors);
//Sets the camera to show the overall route
Tools.setRoutingCamera(originCoords, destinationCoords, map);
//Parses the itinerary, uses it to create an adapter for a recycler view
Itinerary itin = OtpAPI.ParseItinerary(otpResponse["plan"]["itineraries"][0]);
var adapter = new RouteSummaryRowAdapter(itin);
//Binds the adapter to the recyclerView
var rv = FindViewById <RecyclerView>(Resource.Id.slidingRecycler);
rv.SetAdapter(adapter);
//Sets the start button to be fully opaque and clickable
start.Alpha = 1;
start.Clickable = true;
//Slides up the bottom panel to show the route summary
FindViewById <SlidingUpPanelLayout>(Resource.Id.sliding_layout).SetPanelState(SlidingUpPanelLayout.PanelState.Expanded);
};
start.Click += delegate {
//Reconfigures the ui for the navigation mode, now that the user wants to start navigation
reconfigureUiForNavigation(0);
};
}
/**Turn By Turn Navigation Ui**/
private void reconfigureUiForNavigation(int itineraryIndex)
{
//Disable the actv layout, and route/start buttons
FindViewById <LinearLayout>(Resource.Id.actvLayout).Visibility = ViewStates.Gone;
FindViewById <Button>(Resource.Id.startButton).Visibility = ViewStates.Gone;
FindViewById <Button>(Resource.Id.routeButton).Visibility = ViewStates.Gone;
//Binds a variable to the recyclerView
RecyclerView recyclerView = FindViewById <RecyclerView>(Resource.Id.slidingRecycler);
//Parses the itinerary selected
Itinerary itin = OtpAPI.ParseItinerary(otpResponse["plan"]["itineraries"][itineraryIndex]);
//Binds a variable to a configured recycler view
recyclerView = Tools.configureRecyclerViewForNavigation(itin, recyclerView);
//Sets up the turn by turn ui (the upper section)
initializeUpperNavigationUi(itin, recyclerView);
//Sets the first row in the recyclerView to be highlighted
((StepRowAdapter)recyclerView.GetAdapter()).HighlightedRow = 0;
//Hides the recentering button when navigating
Tools.toggleVisibility(FindViewById <FloatingActionButton>(Resource.Id.recenterOnUserActionButton));
//Binds the backToRoutingButton to go back to the routing screen
Button backToRoutingButton = FindViewById <Button>(Resource.Id.backToRoutingButton);
backToRoutingButton.Click += delegate
{
//TODO: implement reverse screen reconfiguration
reconfigureUiForRouting();
};
//Configures the station image thumbnail with the sample image
configureStationImage();
//Starts turn by turn tracking for stepping through the steps
initializeTurnByTurnTracking(itin, recyclerView);
}
//Plots routes on the map
public static void plotRoute(JObject response, MapboxMap map, int count, int[] colors)
{
//Parses the routes from the response into a list of points, stores all routes in a list
List <List <double[]> > routes = OtpAPI.GetRoutePoints(response);
//Handles case in which there are no routes to the destination
if (routes.Count() == 0)
{
//TODO: Show message to user that no routes are possible
}
//Iterates over the routes in the response, plotting each one in a different color.
//The first route is plotted with full opacity, while the rest are 50% transparent.
for (int i = 0; i < Math.Min(routes.Count(), count); i++)
{
//Sets up a new polyline options object to be plotted on the map
var polylineOpts = new PolylineOptions();
//Adds each point in the route to the polyline
foreach (double[] point in routes[i])
{
polylineOpts.Add(new LatLng(point[0], point[1]));
}
//Set a dark thick line if it's the primary route
if (i == 0)
{
polylineOpts.SetAlpha(1F);
polylineOpts.SetWidth(5F);
}
//Set a lighter, thinner, line if it's a secondary one
else
{
polylineOpts.SetAlpha(.5F);
polylineOpts.SetWidth(3F);
}
//Sets the color according to the set in the colors field
polylineOpts.SetColor(colors[i % 3]);
//Plots the polyline on the map
map.AddPolyline(polylineOpts);
}
}