As a user, I want to use an android application to navigate through the map using routes. Once I get the route going, I would develop other ways to organize the navigation, but as of yet, I can't show a route in my map.
I am using this tutorial given by Mapbox themselves: https://www.mapbox.com/android-sdk/examples/directions/ . There are no messages error, in fact, the toast message that shows the route distance is visible after I access the map view. ("Route is 0.0 meters long.") I have checked the logs, the generic HTML code is 200 (Which is the okay one) and the debug message shows a 0.0 meter long route. There are no errors found in the log besides that.
I have double checked the code for a week for any mistake I have made, but I did not find anything that could provoke the error to not show the route. I have debugged the code as well, and it reaches the drawRoute function without no problems, I have checked the token as well, and it works just fine.
What have I done to not show the route? Thanks a lot!
Image example when you try to see a route.
Java code:
public class Mapa extends Activity {
private static final String TAG = "Mapa"; //Tag para usar no log de debug e error
private MapView mapView;
private MapboxMap map;
private DirectionsRoute currentRoute;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Mapbox usa esse token de acesso atraves de uma conta do mapbox, so precisa ser configurado uma vez!
MapboxAccountManager.start(this,getString(R.string.access_token));
// Contem o mapview exposto em XML e precisa ser chamado LOGO APOS o account manager
setContentView(R.layout.activity_main);
// Funcao que pede permissao para o usuario no seu celular -- TODO
PedePermissao();
// Origem: Rodoviaria
final Position origin = Position.fromCoordinates(-15.794082, -47.882645);
// Destino: Reitoria
final Position destination = Position.fromCoordinates(-15.762604, -47.866611);
//Configuracao do mapa
mapView = (MapView) findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(MapboxMap mapboxMap) {
map = mapboxMap;
// Criacao e declaracao do icone
IconFactory iconFactory = IconFactory.getInstance(Mapa.this);
Drawable iconDrawable = ContextCompat.getDrawable(Mapa.this, R.drawable.infoicon);
Icon icon = iconFactory.fromDrawable(iconDrawable);
Drawable iconeDrawableRota = ContextCompat.getDrawable(Mapa.this, R.drawable.infoicon_rota);
Icon iconeRota = iconFactory.fromDrawable(iconeDrawableRota);
//Marcadores das instalacoes
mapboxMap.addMarker(new MarkerViewOptions()
.position(new LatLng(-15.76363, -47.86949))
.title("ICC Centro")
.snippet(getString(R.string.desc_ICC_Centro))
.icon(icon));
mapboxMap.addMarker(new MarkerViewOptions()
.position(new LatLng(-15.7629936, -47.86717415))
.title("Reitoria")
.snippet(getString(R.string.desc_Reitoria))
.icon(icon));
mapboxMap.addMarker(new MarkerViewOptions()
.position(new LatLng(-15.76196106, -47.87008166))
.title("FAU")
.snippet(getString(R.string.desc_FAU))
.icon(icon));
// Adicionando os marcadores de destino da rota
mapboxMap.addMarker(new MarkerOptions()
.position(new LatLng(origin.getLatitude(), origin.getLongitude()))
.title("Origem")
.icon(iconeRota));
mapboxMap.addMarker(new MarkerOptions()
.position(new LatLng(destination.getLatitude(), destination.getLongitude()))
.title("Destino")
.icon(iconeRota));
try {
getRoute(origin, destination);
} catch (ServicesException servicesException) {
servicesException.printStackTrace();
}
//Dados da janela (infowindow) quando clicar em um ponteiro (marker)
mapboxMap.setInfoWindowAdapter(new MapboxMap.InfoWindowAdapter() {
//...
}
});
}
});
}
private void getRoute(Position origin, Position destination) throws ServicesException {
MapboxDirections client = new MapboxDirections.Builder()
.setOrigin(origin)
.setDestination(destination)
.setProfile(DirectionsCriteria.PROFILE_DRIVING)
.setAccessToken(MapboxAccountManager.getInstance().getAccessToken())
.build();
client.enqueueCall(new Callback<DirectionsResponse>() {
@Override
public void onResponse(Call<DirectionsResponse> call, Response<DirectionsResponse> response) {
// Voce pode pegar mensagens de erro genericas do http sobre o response
Log.d(TAG, "Codigo de resposta: " + response.code());
if (response.body() == null) {
Log.e(TAG, "Sem rotas encontradas, porém sem o uso do token, verifique o token de acesso");
return;
} else if (response.body().getRoutes().size() < 1) {
Log.e(TAG, "Sem rotas encontradas!");
return;
}
// Printa algumas informacoes sobre a rota
currentRoute = response.body().getRoutes().get(0);
Log.d(TAG, "Distancia: " + currentRoute.getDistance());
Toast.makeText(
Mapa.this,
"A rota tem " + currentRoute.getDistance() + " metros de distância.",
Toast.LENGTH_SHORT).show();
// Desenhar a rota no mapa
drawRoute(currentRoute);
}
@Override
public void onFailure(Call<DirectionsResponse> call, Throwable throwable) {
Log.e(TAG, "Erro: " + throwable.getMessage());
Toast.makeText(Mapa.this, "Erro: " + throwable.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}
private void drawRoute(DirectionsRoute route) {
// Converter as coordenadas LineString em LatLng[]
LineString lineString = LineString.fromPolyline(route.getGeometry(), Constants.OSRM_PRECISION_V5);
List<Position> coordinates = lineString.getCoordinates();
LatLng[] points = new LatLng[coordinates.size()];
for (int i = 0; i < coordinates.size(); i++) {
points[i] = new LatLng(
coordinates.get(i).getLatitude(),
coordinates.get(i).getLongitude());
}
// Escrever os pontos no MapView
map.addPolyline(new PolylineOptions()
.add(points)
.color(Color.parseColor("#009688"))
.width(5));
}
You coordinates are in the incorrect order. While LatLng is created in the latitude, longitude order, Position is xy ordering or longitude, latitude. So your origin and destination should be:
// Origem: Rodoviaria
final Position origin = Position.fromCoordinates(-47.882645, -15.794082);
// Destino: Reitoria
final Position destination = Position.fromCoordinates(-47.866611, -15.762604);