Find a route and directions

Learn how to find a route and directions with the route service.

Routing is the process of finding the path from an origin to a destination in a street network. You can use the Routing service to find routes, get driving directions, calculate drive times, and solve complicated, multiple vehicle routing problems. To create a route, you typically define a set of stops (origin and one or more destinations) and use the service to find a route with directions. You can also use a number of additional parameters such as barriers and mode of travel to refine the results.

In this tutorial, you define an origin and destination by clicking on the map. These values are used to get a route and directions from the route service. The directions are also displayed on the map.

Prerequisites

Steps

Open a Java project with Gradle

1. To start this tutorial, complete the Display a map tutorial or download and unzip the solution into a new folder.

2. Open the build.gradle file as a project in IntelliJ IDEA.

3. If you downloaded the solution project, set your API key.

   More info

   An API Key enables access to services, web maps, and web scenes hosted in ArcGIS Online.

   1. Go to your developer dashboard to get your API key. For these tutorials, use your default API key. It is scoped to include all of the services demonstrated in the tutorials.

   2. In the IntelliJ IDEA > Project tool window, open src/main/java/com.example.app and click App.

   3. In the start() method, set the API key property on the ArcGISRuntimeEnvironment with your API key.

      App.java

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      //   Copyright 2020 Esri
      //   Licensed under the Apache License, Version 2.0 (the "License");
      //   you may not use this file except in compliance with the License.
      //   You may obtain a copy of the License at
      //
      //   http://www.apache.org/licenses/LICENSE-2.0
      //
      //   Unless required by applicable law or agreed to in writing, software
      //   distributed under the License is distributed on an "AS IS" BASIS,
      //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      //   See the License for the specific language governing permissions and
      //   limitations under the License.
      
      package com.example.app;
      
      import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
      import com.esri.arcgisruntime.mapping.ArcGISMap;
      import com.esri.arcgisruntime.mapping.BasemapStyle;
      import com.esri.arcgisruntime.mapping.Viewpoint;
      import com.esri.arcgisruntime.mapping.view.MapView;
      
      import javafx.application.Application;
      import javafx.scene.Scene;
      import javafx.scene.layout.StackPane;
      import javafx.stage.Stage;
      
      public class App extends Application {
      
        private MapView mapView;
      
        public static void main(String[] args) {
          Application.launch(args);
        }
      
        @Override
        public void start(Stage stage) {
      
          // set the title and size of the stage and show it
          stage.setTitle("Display a map tutorial");
          stage.setWidth(800);
          stage.setHeight(700);
          stage.show();
      
          // create a JavaFX scene with a stack pane as the root node, and add it to the scene
          StackPane stackPane = new StackPane();
          Scene scene = new Scene(stackPane);
      
          stage.setScene(scene);
      
          // Note: it is not best practice to store API keys in source code.
          // The API key is referenced here for the convenience of this tutorial.
          String yourApiKey = "YOUR_API_KEY";
          ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
      
          // create a map view to display the map and add it to the stack pane
          mapView = new MapView();
          stackPane.getChildren().add(mapView);
      
          ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);
      
          // set the map on the map view
          mapView.setMap(map);
      
          mapView.setViewpoint(new Viewpoint(34.02700, -118.80543, 144447.638572));
      
        }
      
        /**
         * Stops and releases all resources used in application.
         */
        @Override
        public void stop() {
          if (mapView != null) {
            mapView.dispose();
          }
        }
      
      }
      

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Add import statements and variable declarations

Add import statements and variable declarations to reference the packages and classes required for this tutorial.

1. In the IntelliJ IDEA > Project tool window, open src/main/java/com.example.app and click App.

2. Add the following imports above the existing imports:

   App.java

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

3. Within the App class, add the following member variables to easily reference them from other parts of the application:

   More info

   Member variables ensure that objects are not deallocated while asynchronous methods are executing. If an object is deallocated while one of its asynchronous methods is executing, the completion callback closure will never be called.

   App.java

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

Update the map

A streets basemap layer is typically used in routing applications. Update the basemap to use the ARCGIS_STREETS basemap style, and change the position of the map to center on Los Angeles.

1. Update the Basemap style property from ARCGIS_TOPOGRAPHIC to ARCGIS_STREETS.

2. Update the latitude and longitude coordinates to center on Los Angeles.

   App.java

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

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Add a UI to display driving directions

To display the turn-by-turn directions from the route, a UI element is required.

1. In the start() method, set the maximum size of the directionsList (a JavaFX ListView which will display a vertical list of directions), and then add it to the stackPane.

   App.java

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

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Add a graphics overlay

A graphics overlay is a container for graphics. Graphics will be added later in this tutorial as a visual means to display the route stops and route result on the map.

1. Create a new GraphicsOverlay and add it to the mapView.

   App.java

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   Add line.Add line.

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

   Show more lines

Create a route task and route parameters

A task makes a request to a service and returns the results. Use the RouteTask class to access a routing service.

A routing service with global coverage is provided by the ArcGIS Platform. You can also publish custom routing services using ArcGIS Enterprise.

1. Create a RouteTask with a string URL to reference the ArcGIS Platform's routing service.

   App.java

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   Add line.

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

   Show more lines

2. Get default RouteParameterss from the routeTask and set the return directions property to true.

   This specifies that the route results should include turn-by-turn directions.

   Add a UI text prompt.
   More info

   The createDefaultParametersAsync() method is asynchronous and you must handle its completion and check for errors.

   App.java

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

   Show more lines

Create origin and destination stops

A RouteTask requires at least a single origin and destination stop to find a route. Use a click handler on the mapView to add stops and display them as graphics when the map is clicked.

1. Create a new addStopsOnMouseClicked() method which adds a setOnMouseClicked() listener to the mapView. Convert the clicked JavaFX Point2D to a location Point. Use the point to create a new Stop and add it to the routeStops list.

   App.java

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

   Show more lines

2. Call addStopsOnMouseClicked() in the start() method.

   App.java

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   Add line.

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   //   Copyright 2020 Esri
   //   Licensed under the Apache License, Version 2.0 (the "License");
   //   you may not use this file except in compliance with the License.
   //   You may obtain a copy of the License at
   //
   //   http://www.apache.org/licenses/LICENSE-2.0
   //
   //   Unless required by applicable law or agreed to in writing, software
   //   distributed under the License is distributed on an "AS IS" BASIS,
   //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   //   See the License for the specific language governing permissions and
   //   limitations under the License.
   
   package com.example.app;
   
   import com.esri.arcgisruntime.concurrent.ListenableFuture;
   import com.esri.arcgisruntime.geometry.Geometry;
   import com.esri.arcgisruntime.mapping.BasemapStyle;
   import com.esri.arcgisruntime.mapping.Viewpoint;
   import com.esri.arcgisruntime.mapping.view.Graphic;
   import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
   import com.esri.arcgisruntime.tasks.networkanalysis.Route;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteParameters;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteResult;
   import com.esri.arcgisruntime.tasks.networkanalysis.RouteTask;
   import com.esri.arcgisruntime.tasks.networkanalysis.Stop;
   
   import javafx.collections.FXCollections;
   import javafx.collections.ListChangeListener;
   import javafx.collections.ObservableList;
   import javafx.geometry.Point2D;
   import javafx.geometry.Pos;
   import javafx.scene.control.Alert;
   import javafx.scene.control.ListView;
   import javafx.scene.input.MouseButton;
   import java.util.List;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISMap;
   import com.esri.arcgisruntime.mapping.view.MapView;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   
     private MapView mapView;
   
     private Graphic routeGraphic;
     private RouteTask routeTask;
     private RouteParameters routeParameters;
     private final ObservableList<Stop> routeStops = FXCollections.observableArrayList();
     private final ListView<String> directionsList = new ListView<>();
   
     public static void main(String[] args) {
       Application.launch(args);
     }
   
     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Find a route and directions tutorial");
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   
       // create a JavaFX scene with a stack pane as the root node
       // and add it to the scene
       StackPane stackPane = new StackPane();
       Scene scene = new Scene(stackPane);
   
       stage.setScene(scene);
   
       // Note: it is not best practice to store API keys in source code.
       // The API key is referenced here for the convenience of this tutorial.
       String yourApiKey = "YOUR_API_KEY";
       ArcGISRuntimeEnvironment.setApiKey(yourApiKey);
   
       // create a MapView to display the map and add it to the stack pane
       mapView = new MapView();
       stackPane.getChildren().add(mapView);
   
       ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
   
       // set the map on the map view
       mapView.setMap(map);
   
       mapView.setViewpoint(new Viewpoint(34.05398, -118.24532, 144447.638572));
   
       directionsList.setMaxSize(400, 250);
       stackPane.getChildren().add(directionsList);
       StackPane.setAlignment(directionsList, Pos.TOP_LEFT);
   
       GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
       mapView.getGraphicsOverlays().add(graphicsOverlay);
   
       routeTask = new RouteTask("https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World");
   
       ListenableFuture<RouteParameters> routeParametersFuture = routeTask.createDefaultParametersAsync();
       routeParametersFuture.addDoneListener(() -> {
         try {
           routeParameters = routeParametersFuture.get();
           routeParameters.setReturnDirections(true);
           directionsList.getItems().add("Click to add two points to the map to find a route.");
   
         } catch (Exception e) {
           Alert alert = new Alert(Alert.AlertType.ERROR, e.toString());
           alert.show();
           e.printStackTrace();
         }
       });
   
       addStopsOnMouseClicked();
   
       routeStops.addListener((ListChangeListener<Stop>) e -> {
         // track the number of stops added to the map, and use it create graphic geometry and symbol text
         int routeStopsSize = routeStops.size();
         // handle user interaction
         if (routeStopsSize == 0) {
           return;
         } else if (routeStopsSize == 1) {
           graphicsOverlay.getGraphics().clear();
           if (!directionsList.getItems().isEmpty())
           directionsList.getItems().clear();
           directionsList.getItems().add("Click to add two points to the map to find a route.");
         }
         // create a blue circle symbol for the stop
         SimpleMarkerSymbol stopMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xff0000ff, 20);
         // get the stop's geometry
         Geometry routeStopGeometry = routeStops.get(routeStopsSize-1).getGeometry();
   
         graphicsOverlay.getGraphics().add(new Graphic(routeStopGeometry, stopMarker));
   
         if (routeStopsSize == 2) {
           // remove the mouse clicked event if two stops have been added
           mapView.setOnMouseClicked(null);
           routeParameters.setStops(routeStops);
   
           // get the route and display it
           ListenableFuture<RouteResult> routeResultFuture = routeTask.solveRouteAsync(routeParameters);
           routeResultFuture.addDoneListener(() -> {
             try {
               RouteResult result = routeResultFuture.get();
               List<Route> routes = result.getRoutes();
   
               if (!routes.isEmpty()) {
                 Route route = routes.get(0);
                 Geometry shape = route.getRouteGeometry();
                 routeGraphic = new Graphic(shape, new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, 0xff0000ff, 2));
                 graphicsOverlay.getGraphics().add(routeGraphic);
   
                 // get the direction text for each maneuver and display it as a list in the UI
                 route.getDirectionManeuvers().forEach(step -> directionsList.getItems().add(step.getDirectionText()));
                 // reset stops and re-enable mapview interactions once the route task has completed
                 routeStops.clear();
                 addStopsOnMouseClicked();
   
               }
   
             } catch (Exception ex) {
               ex.printStackTrace();
             }
           });
   
         }
   
       });
   
     }
   
     private void addStopsOnMouseClicked() {
       mapView.setOnMouseClicked(event -> {
         if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
           Point2D mapPoint = new Point2D(event.getX(), event.getY());
           routeStops.add(new Stop(mapView.screenToLocation(mapPoint)));
         }
       });
     }
   
     /**
      * Stops and releases all resources used in application.
      */
     @Override
     public void stop() {
       if (mapView != null) {
         mapView.dispose();
       }
     }
   
   }
   

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3. To display the stops on the map as they are added, add a listener to the routeStops ObservableList and create a new SimpleMarkerSymbol for each Stop. Use the stop's geometry to create a new Graphic and add it to the graphicsOverlay.

   App.java

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