Style a feature layer

Learn how to apply renderers and label definitions to a feature layer based on attribute values.

Applications can display feature layer data with different styles to enhance the visualization. The type of Renderer you choose depends on your application. A SimpleRenderer applies the same symbol to all features, a UniqueValueRenderer applies a different symbol to each unique attribute value, and a ClassBreaksRenderer applies a symbol to a range of numeric values. Renderers are responsible for accessing the data and applying the appropriate symbol to each feature when the layer draws. You can also use a LabelDefinition to show attribute information for features. Visit the Styles and data visualization documentation to learn more about styling layers.

You can also author, style and save web maps, web scenes, and layers as portal items and then add them to the map in your application. Visit the following tutorials to learn more about adding portal items.

In this tutorial, you will apply different renderers to enhance the visualization of three feature layers with data for the Santa Monica Mountains: Trailheads with a single symbol, Trails based on elevation change and bike use, and Parks and Open Spaces based on the type of park.

Prerequisites

Before starting this tutorial:

You need an ArcGIS Location Platform or ArcGIS Online account.
Confirm that your system meets the minimum system requirements.
An IDE for Java.

Steps

Open a Java project with Gradle

To start this tutorial, complete the Display a map tutorial, or download and unzip the Display a map solution into a new folder.
Open the build.gradle file as a project in IntelliJ IDEA.
If you downloaded the solution, get an access token and set the API key.
An API key gives your app access to secure resources used in this tutorial.
1. Go to the Create an API key tutorial to obtain a new API key access token using your ArcGIS Location Platform or ArcGIS Online account. Ensure that the following privilege is enabled: Location services > Basemaps > Basemap styles service. Copy the access token as it will be used in the next step.
2. In IntelliJ IDEA's Project tool window, open src/main/java/com.example.app and double-click App.
3. In the start() method, set the API key property on the ArcGISRuntimeEnvironment with your access token. Replace YOUR_ACCESS_TOKEN with your copied access token. Be sure to surround your access token with double quotes as it is a string.
  App.java
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  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 ArcGISRuntimeEnvironment.setApiKey("YOUR_ACCESS_TOKEN");
  Warning
  The access token is stored directly in the code as a convenience for this tutorial. Storing access tokens in the source code is not best practice.

Preconfigure app

Modify the files from the Display a map tutorial so they can be used in this tutorial: you will change the app title, modify the viewpoint, and move the declaration of the map variable.

In the start() life-cycle method, change the title that will appear on the application window to Style a feature layer.

App.java
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Change lineChange line  @Override
  public void start(Stage stage) {

    // set the title and size of the stage and show it
    stage.setTitle("Style a feature layer");

    stage.setWidth(800);
    stage.setHeight(700);
    stage.show();
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Modify the Viewpoint constructor call so it passes a scale parameter of 72000.0, which is more appropriate to this tutorial.

App.java
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    // create a map view to display the map and add it to the stack pane
    mapView = new MapView();
    stackPane.getChildren().add(mapView);

    map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);

    // set the map on the map view
    mapView.setMap(map);

    mapView.setViewpoint(new Viewpoint(34.02700, -118.80543, 72000.0));

  }

Move the declaration of the map variable to the top level of the App class. Since map will be accessed from a new method later, it must be a field of the class, rather than a local variable in the start() method.

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Remove line    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));
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App.java
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Add line.public class App extends Application {

  private MapView mapView;

  private ArcGISMap map =new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);


  public static void main(String[] args) {
    Application.launch(args);
  }
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Import headers and define constants

You will add imports and define colors used in this tutorial.

In IntelliJ IDEA's Project tool window, open src/main/java/com.example.app and double-click App. Add the following imports, replacing those from the Display a map tutorial.

App.java
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package com.example.app;

import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.arcgisservices.LabelDefinition;
import com.esri.arcgisruntime.data.ServiceFeatureTable;
import com.esri.arcgisruntime.layers.FeatureLayer;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.labeling.ArcadeLabelExpression;
import com.esri.arcgisruntime.mapping.view.MapView;
import com.esri.arcgisruntime.symbology.ClassBreaksRenderer;
import com.esri.arcgisruntime.symbology.ClassBreaksRenderer.ClassBreak;
import com.esri.arcgisruntime.symbology.PictureMarkerSymbol;
import com.esri.arcgisruntime.symbology.SimpleFillSymbol;
import com.esri.arcgisruntime.symbology.SimpleLineSymbol;
import com.esri.arcgisruntime.symbology.SimpleRenderer;
import com.esri.arcgisruntime.symbology.TextSymbol;
import com.esri.arcgisruntime.symbology.UniqueValueRenderer;
import com.esri.arcgisruntime.symbology.UniqueValueRenderer.UniqueValue;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;

import java.util.ArrayList;
import java.util.List;

public class App extends Application {

Add static fields to hold the value of certain JavaFX colors. These are the colors you will be assigning to symbols later in the tutorial.

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Add line.Add line.Add line.Add line.Add line.Add line.  // colors for symbols
  private static final Color RED = Color.RED;
  private static final Color GREEN = Color.GREEN;
  private static final Color BLUE = Color.BLUE;
  private static final Color PURPLE = Color.PURPLE;
  private static final Color WHITE = Color.WHITE;
Expand

Create a method to add a feature layer

You can add a feature layer from a feature service hosted in ArcGIS. Each feature layer contains features with a single geometry type (point, line, or polygon), and a set of attributes. Once added to the map, feature layers can be symbolized, styled, and labeled in a variety of ways.

Define variables that store feature service URLs used by the app's layers and then create a helper method to add a layer to the map's collection of operational layers. You will use this code throughout the tutorial as you add and symbolize various layers.

Create four private final fields of type String: three for accessing feature layers, and a fourth for accessing a static image for use in a picture marker symbol. You will use these resources in future steps.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  // Application constants used to connect to data and resources.
  private final String parksAndOpenSpaces =
      "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Parks_and_Open_Space/FeatureServer/0";
  private final String trails =
      "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Trails/FeatureServer/0";
  private final String trailheads =
      "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Trailheads/FeatureServer/0";
  private final String trailheadImage = "https://static.arcgis.com/images/Symbols/NPS/npsPictograph_0231b.png";
Expand

Add a new private method named addFeatureLayer() that takes a feature service URI as an argument, creates a feature layer from the URI, and adds it to the list of the map's operational layers.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private FeatureLayer addFeatureLayer(String featureServiceUri){
    // Create a service feature table from a Uri.
    ServiceFeatureTable serviceFeatureTable = new ServiceFeatureTable(featureServiceUri);
    // Create a feature layer from the service feature table.
    FeatureLayer featureLayer = new FeatureLayer(serviceFeatureTable);
    // Add the feature layer to the map's list of operational layers.
    map.getOperationalLayers().add(featureLayer);
    // return the feature layer
    return featureLayer;
  }
Expand

Add a layer with a unique value renderer

Create a method to apply a different symbol for each type of park area to the Parks and Open Spaces feature layer.

Add a new private method named addOpenSpaceLayer() just after the newly added addFeatureLayer() method.

UniqueValue assigns a symbol to a value or values. A unique value renderer uses a collection of unique values to assign the appropriate symbol for each feature it renderers.

For this example, the renderer uses a feature's TYPE attribute value to apply the correct symbol.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private void addOpenSpaceLayer() {
    // Create a parks and open spaces feature layer and add it to the map view.
    FeatureLayer featureLayer = addFeatureLayer(parksAndOpenSpaces);

    // Create fill symbols.
    SimpleFillSymbol purpleFillSymbol =
        new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, PURPLE, null);
    SimpleFillSymbol greenFillSymbol =
        new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, GREEN, null);
    SimpleFillSymbol blueFillSymbol =
        new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, BLUE, null);
    SimpleFillSymbol redFillSymbol =
        new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, RED, null);

    // Create a unique value for natural areas, regional open spaces, local parks, and regional recreation parks.
    List<Object> naturalAreasValue = new ArrayList<>();
    naturalAreasValue.add("Natural Areas");
    UniqueValue naturalAreas =
        new UniqueValue("Natural Areas", "Natural Areas", purpleFillSymbol, naturalAreasValue);

    List<Object> regionalOpenSpaceValue = new ArrayList<>();
    naturalAreasValue.add("Regional Open Space");
    UniqueValue regionalOpenSpace =
        new UniqueValue("Regional Open Space", "Regional Open Space", greenFillSymbol, regionalOpenSpaceValue);

    List<Object> localParkValue = new ArrayList<>();
    localParkValue.add("Local Park");
    UniqueValue localPark =
        new UniqueValue("Local Park", "Local Park", blueFillSymbol, localParkValue);

    List<Object> regionalRecreationParkValue = new ArrayList<>();
    regionalRecreationParkValue.add("Regional Recreation Park");
    UniqueValue regionalRecreationPark =
        new UniqueValue("Regional Recreation Park", "Regional Recreation Park", redFillSymbol, regionalRecreationParkValue);

    List<UniqueValue> uniqueValuesList = new ArrayList<>();
    uniqueValuesList.add(naturalAreas);
    uniqueValuesList.add(regionalOpenSpace);
    uniqueValuesList.add(localPark);
    uniqueValuesList.add(regionalRecreationPark);

    // Create a unique value renderer and set it on the parks and open spaces feature layer.
    // fieldNames is a List, but in this tutorial there is only one item in the list
    List<String> fieldNames = new ArrayList<>();
    fieldNames.add("TYPE");
    UniqueValueRenderer openSpacesUniqueValueRenderer =
        new UniqueValueRenderer(fieldNames, uniqueValuesList, "Open Spaces", null);
    featureLayer.setRenderer(openSpacesUniqueValueRenderer);

    // Set the layer opacity to semi-transparent.
    featureLayer.setOpacity(0.2f);
  }
Expand

Update the start() method to call the new addOpenSpaceLayer() method.

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    mapView = new MapView();
    stackPane.getChildren().add(mapView);

    map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);

    // set the map on the map view
    mapView.setMap(map);

    mapView.setViewpoint(new Viewpoint(34.02700, -118.80543, 72000.0));

    addOpenSpaceLayer();

  }
Expand

Run the app. Ensure to run the app as a Gradle task and not as an application in your IDE. In the Gradle tool window, under Tasks > application, double-click run.

When the app opens, Parks and Open Spaces feature layer is added to the map. The map displays the different types of parks and open spaces with four unique symbols.

Add a layer with a class breaks renderer

Create a method to apply a different symbol for each of the five ranges of elevation gain to the Trails feature layer.

Add a new method named addTrailsLayer() just after the addOpenSpaceLayer() method you created above.

A ClassBreak assigns a symbol to a range of values.

For this example, the renderer uses each feature's ELEV_GAIN attribute value to classify it into a defined range (class break) and apply the corresponding symbol.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private void addTrailsLayer() {
    // Create a trails feature layer and add it to the map view.
    FeatureLayer featureLayer = addFeatureLayer(trails);

    // Create simple line symbols.
    SimpleLineSymbol firstClassSymbol =
        new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, PURPLE, 3.0f);
    SimpleLineSymbol secondClassSymbol =
        new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, PURPLE, 4.0f);
    SimpleLineSymbol thirdClassSymbol =
        new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, PURPLE, 5.0f);
    SimpleLineSymbol fourthClassSymbol =
        new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, PURPLE, 6.0f);
    SimpleLineSymbol fifthClassSymbol =
        new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, PURPLE, 7.0f);

    // Create five class breaks.
    ClassBreak firstClassBreak =
        new ClassBreak("Under 500", "0 - 500", 0.0, 500.0, firstClassSymbol);
    ClassBreaksRenderer.ClassBreak secondClassBreak =
        new  ClassBreak("501 to 1000", "501 - 1000", 501.0, 1000.0, secondClassSymbol);
    ClassBreak thirdClassBreak =
        new  ClassBreak("1001 to 1500", "1001 - 1500", 1001.0, 1500.0, thirdClassSymbol);
    ClassBreak fourthClassBreak =
        new  ClassBreak("1501 to 2000", "1501 - 2000", 1501.0, 2000.0, fourthClassSymbol);
    ClassBreak fifthClassBreak =
        new ClassBreak("2001 to 2300", "2001 - 2300", 2001.0, 2300.0, fifthClassSymbol);

    List<ClassBreak> elevationBreaks = new ArrayList<>();
    elevationBreaks.add(firstClassBreak);
    elevationBreaks.add(secondClassBreak);
    elevationBreaks.add(thirdClassBreak);
    elevationBreaks.add(fourthClassBreak);
    elevationBreaks.add(fifthClassBreak);

    // Create a class breaks renderer and set it on the feature layer.
    ClassBreaksRenderer elevationClassBreaksRenderer =
        new ClassBreaksRenderer("ELEV_GAIN", elevationBreaks);
    featureLayer.setRenderer(elevationClassBreaksRenderer);

    // Set the layer opacity to semi-transparent.
    featureLayer.setOpacity(0.75f);

  }
Expand

Update the start() method to call the new addTrailsLayer() method.

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Add line.    // create a map view to display the map and add it to the stack pane
    mapView = new MapView();
    stackPane.getChildren().add(mapView);

    map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);

    // set the map on the map view
    mapView.setMap(map);

    mapView.setViewpoint(new Viewpoint(34.02700, -118.80543, 72000.0));

    addOpenSpaceLayer();

    addTrailsLayer();

  }
Expand

Run the app. Ensure to run the app as a Gradle task and not as an application in your IDE. In the Gradle tool window, under Tasks > application, double-click run.

When the app opens, the Trails feature layer is added to the map. The map displays trails with different symbols depending on trail elevation.

Add layers with definition expressions

You can use a definition expression to define a subset of features to display. Features that do not meet the expression criteria are not displayed by the layer. In the following steps, you will create two methods that use a definition expression to apply a symbol to a subset of features in the Trails feature layer.

FeatureLayer.setDefinitionExpression() uses a SQL expression to limit the features available for query and display. Your code will create two layers that each display a different subset of trails based on the value for the USE_BIKE field. Trails that allow bikes will be symbolized with a blue symbol ("USE_BIKE = 'Yes'") and those that don't will be red ("USE_BIKE = 'No'"). Another way to symbolize these features would be to create a UniqueValueRenderer that applies a different symbol for these values.

Add a private method named addBikeOnlyTrailsLayer() with a definition expression to filter for trails that permit bikes. Add this method just after the newly added addTrailsLayer() method.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private void addBikeOnlyTrailsLayer() {
    // Create a trails feature layer and add it to the map view.
    FeatureLayer featureLayer = addFeatureLayer(trails);

    // Write a definition expression to filter for trails that permit the use of bikes.
    featureLayer.setDefinitionExpression("USE_BIKE = 'Yes'");

    // Create a simple renderer and set it on the feature layer.
    SimpleLineSymbol bikeTrailSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.DOT, BLUE, 2.0f);
    SimpleRenderer bikeTrailRenderer = new SimpleRenderer(bikeTrailSymbol);
    featureLayer.setRenderer(bikeTrailRenderer);

  }
Expand

Add another private method named addNoBikeTrailsLayer() with a definition expression to filter for trails that don't allow bikes. Add this method just after the addBikeOnlyTrailsLayer() method.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private void addNoBikesTrailsLayer() {
    // Create a trails feature layer and add it to the map view.
    FeatureLayer featureLayer = addFeatureLayer(trails);

    // Write a definition expression to filter for trails that don't permit the use of bikes.
    featureLayer.setDefinitionExpression("USE_BIKE = 'No'");

    // Create a simple renderer and set it on the feature layer.
    SimpleLineSymbol noBikeTrailSymbol =
        new SimpleLineSymbol(SimpleLineSymbol.Style.DOT, RED, 2.0f);
    SimpleRenderer noBikeTrailRenderer =
        new SimpleRenderer(noBikeTrailSymbol);
    featureLayer.setRenderer(noBikeTrailRenderer);
  }
Expand

Update the start() method to call the new addBikeOnlyTrailsLayer() and addNoBikeTrailsLayer() methods.

App.java
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Add line.Add line.    // create a map view to display the map and add it to the stack pane
    mapView = new MapView();
    stackPane.getChildren().add(mapView);

    map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);

    // set the map on the map view
    mapView.setMap(map);

    mapView.setViewpoint(new Viewpoint(34.02700, -118.80543, 72000.0));

    addOpenSpaceLayer();

    addTrailsLayer();

    addBikeOnlyTrailsLayer();

    addNoBikesTrailsLayer();

  }
Expand

Run the app. Ensure to run the app as a Gradle task and not as an application in your IDE. In the Gradle tool window, under Tasks > application, double-click run.

When the app opens, two Trails feature layers are added to the map. One shows where bikes are permitted and the other where they are prohibited.

Symbolize a layer with a picture symbol and label features with an attribute

Create a method to style trailheads with hiker images and labels for the Trailheads feature layer.

Feature layers, graphics overlays, and map image layer sublayers in your app can be labeled using a combination of attribute values, text strings, and values calculated with an expression. You can determine how labels are positioned and prioritized, and how conflicts between overlapping labels are automatically and dynamically resolved.

For feature layers, graphics overlays, and map image sublayers, labeling is implemented using a collection of LabelDefinition objects to define what labels look like (font, size, color, angle, and so on), the scale at which they display, the text they contain, how they handle overlaps, and so on.

If you want to label everything in your layer or overlay to look identical, you can define a single label definition. If you want to use different label formatting for different attribute values, you can add as many label definitions as you need to define distinct sets of geoelements for labeling.

Create a private helper method named makeLabelDefinition() that defines a label definition based on the passed in feature layer attribute. This method will also define the label placement and text symbol. Add this method just after the addNoBikeTrailsLayer() method you created earlier.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private LabelDefinition makeLabelDefinition(String labelAttribute){
    // Create a new text symbol.
    TextSymbol labelTextSymbol  = new TextSymbol();
    labelTextSymbol.setColor(WHITE);
    labelTextSymbol.setSize(12.0f);
    labelTextSymbol.setHaloColor(RED);
    labelTextSymbol.setHaloWidth(1.0f);
    labelTextSymbol.setFontFamily("Arial");
    labelTextSymbol.setFontStyle(TextSymbol.FontStyle.ITALIC);
    labelTextSymbol.setFontWeight(TextSymbol.FontWeight.NORMAL);

    // Create a new Arcade label expression based on the field name.
    ArcadeLabelExpression labelExpression =
        new ArcadeLabelExpression("$feature." + labelAttribute);

    // Create and return the label definition.
    return new LabelDefinition(labelExpression, labelTextSymbol);

  }
Expand

Add a method named addTrailheadsLayer(). Add this method just after the new makeLabelDefinition() method.

Use a PictureMarkerSymbol to draw a trailhead hiker image. Use the LabelDefinition to label each trailhead by its name.

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Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.Add line.  private void addTrailHeadsLayer() {

    // Create a trailheads feature layer and add it to the map view.
    FeatureLayer featureLayer = addFeatureLayer(trailheads);

    // Create a new picture marker symbol that uses the trailhead image.
    PictureMarkerSymbol pictureMarkerSymbol = new PictureMarkerSymbol(trailheadImage);
    pictureMarkerSymbol.setHeight(18.0f);
    pictureMarkerSymbol.setWidth(18.0f);


    // Create a new simple renderer based on the picture marker symbol.
    SimpleRenderer simpleRenderer = new SimpleRenderer(pictureMarkerSymbol);

    // Set the feature layer's renderer, and enable labels.
    featureLayer.setRenderer(simpleRenderer);
    featureLayer.setLabelsEnabled(true);

    // Create the label definition.
    LabelDefinition trailHeadsDefinition = makeLabelDefinition("TRL_NAME");

    // Add the label definition to the layer's list of label definitions.
    featureLayer.getLabelDefinitions().add(trailHeadsDefinition);

  }
Expand

Update the start() method to call the new addTrailheadsLayer() method.

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Add line.    // create a map view to display the map and add it to the stack pane
    mapView = new MapView();
    stackPane.getChildren().add(mapView);

    map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);

    // set the map on the map view
    mapView.setMap(map);

    mapView.setViewpoint(new Viewpoint(34.02700, -118.80543, 72000.0));

    addOpenSpaceLayer();

    addTrailsLayer();

    addBikeOnlyTrailsLayer();

    addNoBikesTrailsLayer();

    addTrailHeadsLayer();

  }
Expand

Run the app. Ensure to run the app as a Gradle task and not as an application in your IDE. In the Gradle tool window, under Tasks > application, double-click run.

When the app opens, all the layers you've created and symbolized are displayed on the map.

Parks and open spaces are displayed with four unique symbols
Trails use different symbols (line widths) depending on trail elevation
Trails are blue where bikes are permitted and red where they are prohibited
Trailheads are displayed with a hiker icon and labels display each trail's name

What's next?

Learn how to use additional API features, ArcGIS location services, and ArcGIS tools in these tutorials: