ArcGIS Runtime SDK for .NET Samples

Render picture markers

Picture marker symbol


// Copyright 2016 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:
// 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.

using Android.App;
using Android.OS;
using Android.Widget;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.Symbology;
using Esri.ArcGISRuntime.UI;
using Esri.ArcGISRuntime.UI.Controls;
using System;
using System.Reflection;
using System.Threading.Tasks;

namespace ArcGISRuntime.Samples.RenderPictureMarkers
        "Render picture markers",
        "This sample demonstrates how to create picture marker symbols from a URL and embedded resources.",
    public class RenderPictureMarkers : Activity
        // Create and hold reference to the used MapView
        private MapView _myMapView = new MapView();

        protected override void OnCreate(Bundle bundle)

            Title = "Render picture markers";

            // Create the UI, setup the control references and execute initialization

        private async void Initialize()
            // Create new Map with basemap
            Map myMap = new Map(Basemap.CreateTopographic());

            // Create and set initial map area
            Envelope initialLocation = new Envelope(
                -229835, 6550763, -222560, 6552021,
            myMap.InitialViewpoint = new Viewpoint(initialLocation);

            // Assign the map to the MapView
            _myMapView.Map = myMap;

            // Create overlay to where graphics are shown
            GraphicsOverlay overlay = new GraphicsOverlay();

            // Add created overlay to the MapView

            // Add graphics using different source types
            await CreatePictureMarkerSymbolFromResources(overlay);

        private static void CreatePictureMarkerSymbolFromUrl(GraphicsOverlay overlay)
            // Create uri to the used image
            var symbolUri = new Uri(

            // Create new symbol using asynchronous factory method from uri.
            PictureMarkerSymbol campsiteSymbol = new PictureMarkerSymbol(symbolUri)
                Width = 40,
                Height = 40

            // Create location for the campsite
            MapPoint campsitePoint = new MapPoint(-223560, 6552021, SpatialReferences.WebMercator);

            // Create graphic with the location and symbol
            Graphic campsiteGraphic = new Graphic(campsitePoint, campsiteSymbol);

            // Add graphic to the graphics overlay

        private async Task CreatePictureMarkerSymbolFromResources(GraphicsOverlay overlay)
            // Get current assembly that contains the image
            var currentAssembly = Assembly.GetExecutingAssembly();

            // Get image as a stream from the resources
            // Picture is defined as EmbeddedResource and DoNotCopy
            var resourceStream = currentAssembly.GetManifestResourceStream(

            // Create new symbol using asynchronous factory method from stream
            PictureMarkerSymbol pinSymbol = await PictureMarkerSymbol.CreateAsync(resourceStream);
            pinSymbol.Width = 50;
            pinSymbol.Height = 50;

            // Create location for the pint
            MapPoint pinPoint = new MapPoint(-226773, 6550477, SpatialReferences.WebMercator);

            // Create graphic with the location and symbol
            Graphic pinGraphic = new Graphic(pinPoint, pinSymbol);

            // Add graphic to the graphics overlay

        private void CreateLayout()
            // Create a new vertical layout for the app
            var layout = new LinearLayout(this) { Orientation = Orientation.Vertical };

            // Add the map view to the layout

            // Show the layout in the app

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