Add a point, line, and polygon

Learn how to display point, line, and polygon graphics in a map.

You typically use graphics to display geographic data that is not connected to a database and that is not persisted, like highlighting a route between two locations, displaying a search buffer around a point, or tracking the location of a vehicle in real-time. Graphics are composed of a geometry, symbol, and attributes.

In this tutorial, you display points, lines, and polygons on a map as graphics.

To learn how to display data from data sources, see the Add a feature layer tutorial.

Prerequisites

Steps

Open an Android Studio project

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

2. Modify the old project for use in this new tutorial. Expand More info for instructions.

   More info

   1. On your file system, delete the .idea folder, if present, at the top level of your project.

   2. In the Android tool window, open app > res > values > strings.xml.

      In the <string name="app_name"> element, change the text content to Add a point, line, and polygon.

      strings.xml

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      <resources>
      
          <string name="app_name">Add a point, line, and polygon</string>
      
      </resources>

   3. In the Android tool window, open Gradle Scripts > settings.gradle.

      Change the value of rootProject.name to "Add a point, line, and polygon".

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      include ':app'
      
      rootProject.name = "Add a point, line, and polygon"

   4. Click File > Sync Project with Gradle files. Android Studio will recognize your changes and create a new .idea folder.

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 Android Studio: in the Android tool window, open app > java > com.example.app > MainActivity.

   3. In the setApiKeyForApp() method, find the ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY") call and paste your API key inside the quotes, replacing YOUR_API_KEY.

      MainActivity.kt

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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
       *
       *    https://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 android.os.Bundle
      import androidx.appcompat.app.AppCompatActivity
      
      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 com.example.app.databinding.ActivityMainBinding
      
      class MainActivity : AppCompatActivity() {
      
          private val activityMainBinding by lazy {
            ActivityMainBinding.inflate(layoutInflater)
          }
      
          private val mapView: MapView by lazy {
            activityMainBinding.mapView
          }
      
          override fun onCreate(savedInstanceState: Bundle?) {
              super.onCreate(savedInstanceState)
      
              setContentView(activityMainBinding.root)
      
              setApiKeyForApp()
      
              setupMap()
      
          }
      
          override fun onPause() {
              mapView.pause()
              super.onPause()
          }
      
          override fun onResume() {
              super.onResume()
              mapView.resume()
          }
      
          override fun onDestroy() {
              mapView.dispose()
              super.onDestroy()
          }
      
          private fun setApiKeyForApp(){
              // set your API key
              // 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.
      
              ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
      
          }
      
          // set up your map here. You will call this method from onCreate()
          private fun setupMap() {
      
              // create a map with the BasemapStyle streets
              val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
      
              // set the map to be displayed in the layout's MapView
              mapView.map = map
      
              // set the viewpoint, Viewpoint(latitude, longitude, scale)
              mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
      
          }
      
      }
      

Add import statements

1. Replace app-specific import statements with the imports needed for this tutorial.

   MainActivity.kt

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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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

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Add a graphics overlay

A graphics overlay is a container for graphics. It is used with a map view to display graphics on a map. You can add more than one graphics overlay to a map view. Graphics overlays are displayed on top of all the other layers.

1. In Android Studio, in the Android tool window, open app > java > com.example.app > MainActivity.

2. Create a new function named addGraphics().

3. Create a GraphicsOverlay to display point, line, and polygon graphics and add it to the mapView's collection of graphics overlays.

4. Call the addGraphics() function from the onCreate() lifecycle function.

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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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

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Add a point graphic

A point graphic is created using a point and a marker symbol. A point is defined with x and y coordinates, and a spatial reference. For latitude and longitude coordinates, the spatial reference is WGS84.

1. Create a Point and a SimpleMarkerSymbol. To create the Point, provide longitude (x) and latitude (y) coordinates and a SpatialReference. Use the SpatialReferences.getWgs84() convenience function.

   More info

   Point graphics support a number of symbol types such as SimpleMarkerSymbol, PictureMarkerSymbol, and TextSymbol. Learn more about symbols in the API documentation.

   Next create a solid, blue, 2px-wide SimpleLineSymbol and assign it to the outline property of simpleMarkerSymbol.

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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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

   Show more lines

2. Create a Graphic with the point and simpleMarkerSymbol. Display the Graphic by adding it to the graphicsOverlay's graphics collection.

   MainActivity.kt

   Use dark colors for code blocks

   Show more lines

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   Add line.Add line.Add line.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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

   Show more lines

3. Click Run > Run > app to run the app.

   More info

   The Android Emulator should display and run your app in the Android Virtual Devcie (AVD) selected in the Android Studio toolbar:

   

   If your app builds but no AVD displays, you need to add one. Click Tools > AVD Manager > Create Virtual Device...

You should see a point graphic in Point Dume State Beach.

Add a line graphic

A line graphic is created using a polyline and a line symbol. A polyline is defined as a sequence of points.

1. Create a Polyline and a SimpleLineSymbol. To create the Polyline, first create a PointCollection and add individual Points. Then pass the PointCollection to the Polyline constructor.

   More info

   Line graphics support a number of symbol types such as SimpleMarkerSymbol and TextSymbol. Learn more about symbols in the API documentation.

   MainActivity.kt

   Use dark colors for code blocks

   Show more lines

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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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

   Show more lines

2. Create a Graphic with the polyline and polylineSymbol. Display the Graphic by adding it to the graphicsOverlay's graphics collection. Next, add a blue outline.

   MainActivity.kt

   Use dark colors for code blocks

   Show more lines

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   Add line.Add line.Add line.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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

   Show more lines

3. Click Run > Run > app to run the app.

   More info

   The Android Emulator should display and run your app in the Android Virtual Devcie (AVD) selected in the Android Studio toolbar:

   

   If your app builds but no AVD displays, you need to add one. Click Tools > AVD Manager > Create Virtual Device...

You should see a point and line graphic along Westward Beach.

Add a polygon graphic

A polygon graphic is created using a polygon and a fill symbol. A polygon is defined as a sequence of points that describe a closed boundary.

1. Create a Polygon and a SimpleFillSymbol. To create the Polygon, first create a PointCollection and add individual Points. Then pass the PointCollection to the Polygon constructor.

   More info

   Polygon graphics support a number of symbol types such as SimpleFillSymbol, PictureFillSymbol, SimpleMarkerSymbol, and TextSymbol. Learn more about symbols in the API documentation.

   Next, create a SimpleFillSymbol that has a solid, 20%-transparent orange fill, and the blueOutlineSymbol defined earlier.

   MainActivity.kt

   Use dark colors for code blocks

   Show more lines

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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.

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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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

   Show more lines

2. Create a Graphic with the polygon and polygonFillSymbol. Display the Graphic by adding it to the graphicsOverlay's graphics collection.

   MainActivity.kt

   Use dark colors for code blocks

   Show more lines

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   Add line.Add line.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
    *
    *    https://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 android.os.Bundle
   import androidx.appcompat.app.AppCompatActivity
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
   import com.esri.arcgisruntime.geometry.Point
   import com.esri.arcgisruntime.geometry.PointCollection
   import com.esri.arcgisruntime.geometry.Polygon
   import com.esri.arcgisruntime.geometry.Polyline
   import com.esri.arcgisruntime.geometry.SpatialReferences
   import com.esri.arcgisruntime.mapping.ArcGISMap
   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.mapping.view.MapView
   import com.esri.arcgisruntime.symbology.SimpleFillSymbol
   import com.esri.arcgisruntime.symbology.SimpleLineSymbol
   import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol
   
   import com.example.app.databinding.ActivityMainBinding
   
   
   class MainActivity : AppCompatActivity() {
   
       private val activityMainBinding by lazy {
           ActivityMainBinding.inflate(layoutInflater)
       }
   
       private val mapView: MapView by lazy {
           activityMainBinding.mapView
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)
           setContentView(activityMainBinding.root)
   
           setApiKeyForApp()
   
           setupMap()
   
           addGraphics()
   
       }
   
       override fun onResume() {
           super.onResume()
           mapView.resume()
       }
   
       override fun onPause() {
           super.onPause()
           mapView.pause()
       }
   
       override fun onDestroy() {
           mapView.dispose()
           super.onDestroy()
       }
   
       private fun setApiKeyForApp(){
           // set your API key
           // 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.
   
           ArcGISRuntimeEnvironment.setApiKey("YOUR_API_KEY")
   
       }
   
       private fun addGraphics() {
   
           // create a graphics overlay and add it to the map view
           val graphicsOverlay = GraphicsOverlay()
           mapView.graphicsOverlays.add(graphicsOverlay)
   
           // create a point geometry with a location and spatial reference
           // Point(latitude, longitude, spatial reference)
           val point = Point(-118.8065, 34.0005, SpatialReferences.getWgs84())
   
           // create an opaque orange (0xFFFF5733) point symbol with a blue (0xFF0063FF) outline symbol
           val simpleMarkerSymbol = SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, -0xa8cd, 10f)
   
           val blueOutlineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 2f)
           simpleMarkerSymbol.outline = blueOutlineSymbol
   
           // create a graphic with the point geometry and symbol
           val pointGraphic = Graphic(point, simpleMarkerSymbol)
   
           // add the point graphic to the graphics overlay
           graphicsOverlay.graphics.add(pointGraphic)
   
           // create a point collection with a spatial reference, and add three points to it
           val polylinePoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8215, 34.0139))
               add(Point(-118.8148, 34.0080))
               add(Point(-118.8088, 34.0016))
           }
   
           // create a polyline geometry from the point collection
           val polyline = Polyline(polylinePoints)
   
           // create a blue line symbol for the polyline
           val polylineSymbol = SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, -0xff9c01, 3f)
   
           // create a polyline graphic with the polyline geometry and symbol
           val polylineGraphic = Graphic(polyline, polylineSymbol)
   
           // add the polyline graphic to the graphics overlay
           graphicsOverlay.graphics.add(polylineGraphic)
   
           // create a point collection with a spatial reference, and add five points to it
           val polygonPoints = PointCollection(SpatialReferences.getWgs84()).apply {
               // Point(latitude, longitude)
               add(Point(-118.8189, 34.0137))
               add(Point(-118.8067, 34.0215))
               add(Point(-118.7914, 34.0163))
               add(Point(-118.7959, 34.0085))
               add(Point(-118.8085, 34.0035))
           }
           // create a polygon geometry from the point collection
           val polygon = Polygon(polygonPoints)
   
           // create an orange fill symbol with 20% transparency and the blue simple line symbol
           val polygonFillSymbol =
               SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, -0x7f00a8cd, blueOutlineSymbol)
   
           // create a polygon graphic from the polygon geometry and symbol
           val polygonGraphic = Graphic(polygon, polygonFillSymbol)
           // add the polygon graphic to the graphics overlay
           graphicsOverlay.graphics.add(polygonGraphic)
   
       }
   
       // set up your map here. You will call this method from onCreate()
       private fun setupMap() {
           // create a map with the basemap style topographic
           val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)
   
           // set the map to be displayed in the layout's MapView
           mapView.map = map
           // @Start(viewpoint)
           // set the viewpoint, Viewpoint(latitude, longitude, scale)
           mapView.setViewpoint(Viewpoint(34.0270, -118.8050, 72000.0))
   
       }
   
   }
   

   Show more lines

3. Click Run > Run > app to run the app.

   More info

   The Android Emulator should display and run your app in the Android Virtual Devcie (AVD) selected in the Android Studio toolbar:

   

   If your app builds but no AVD displays, you need to add one. Click Tools > AVD Manager > Create Virtual Device...

You should see a point, line, and polygon graphic around Mahou Riviera in the Santa Monica Mountains.

What's next

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

• Add a feature layer
• Search for an address
• Find a route and directions