NavigationMapRoute.java 文件源码

/**
 * Provide a list of {@link DirectionsRoute}s, the primary route will default to the first route
 * in the directions route list. All other routes in the list will be drawn on the map using the
 * alternative route style.
 *
 * @param directionsRoutes a list of direction routes, first one being the primary and the rest of
 *                         the routes are considered alternatives.
 * @since 0.8.0
 */
public void addRoutes(@NonNull @Size(min = 1) List<DirectionsRoute> directionsRoutes) {
  this.directionsRoutes = directionsRoutes;
  primaryRouteIndex = 0;
  if (!layerIds.isEmpty()) {
    for (String id : layerIds) {
      mapboxMap.removeLayer(id);
    }
  }
  featureCollections.clear();
  generateFeatureCollectionList(directionsRoutes);
  drawRoutes();
  addDirectionWaypoints();
}