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ArcGISPortalCreateAsync Method (CancellationToken)

Creates asynchronously a new instance of the ArcGISPortal class that represents ArcGIS Online (i.e as Portal Uri).

Namespace:  Esri.ArcGISRuntime.Portal
Assembly:  Esri.ArcGISRuntime (in Esri.ArcGISRuntime.dll) Version:
public static Task<ArcGISPortal> CreateAsync(
	CancellationToken cancellationToken


Type: System.ThreadingCancellationToken
A CancellationToken with which to cancel the operation if required.

Return Value

Type: TaskArcGISPortal
The task object representing the asynchronous create operation. The value of the task result is a ArcGISPortal object.


Example Name: ChangeViewpoint

Set the map view to a new viewpoint.

Code example screen shot.

// Copyright 2018 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.Views;
using Android.Widget;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
using System;
using System.Collections.Generic;
using System.Linq;

namespace ArcGISRuntime.Samples.ChangeViewpoint
    [Activity (ConfigurationChanges=Android.Content.PM.ConfigChanges.Orientation | Android.Content.PM.ConfigChanges.ScreenSize)]
        "Change viewpoint",
        "This sample demonstrates different ways in which you can change the viewpoint of the MapView.",
    public class ChangeViewpoint : Activity
        // Create and hold reference to the used MapView
        private MapView _myMapView;

        // Coordinates for London
        private readonly MapPoint _londonCoords = new MapPoint(-13881.7678417696, 6710726.57374296, SpatialReferences.WebMercator);

        private const double LondonScale = 8762.7156655228955;

        // Coordinates for Redlands
        private readonly Polygon _redlandsPolygon = new Polygon(
            new List<MapPoint>
                    new MapPoint(-13049785.1566222, 4032064.6003424),
                    new MapPoint(-13049785.1566222, 4040202.42595729),
                    new MapPoint(-13037033.5780234, 4032064.6003424),
                    new MapPoint(-13037033.5780234, 4040202.42595729)

        // Coordinates for Edinburgh
        private readonly Polygon _edinburghPolygon = new Polygon(
            new List<MapPoint>
                new MapPoint(-354262.156621384, 7548092.94093301),
                new MapPoint(-354262.156621384, 7548901.50684376),
                new MapPoint(-353039.164455303, 7548092.94093301),
                new MapPoint(-353039.164455303, 7548901.50684376)},

        // String array to store titles for the viewpoints specified above.
        private readonly string[] _titles = {
            "Center & Scale",

        protected override void OnCreate(Bundle bundle)

            Title = "Change viewpoint";

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

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

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

        private void OnMapsClicked(object sender, EventArgs e)
            Button viewpointsButton = (Button)sender;

            // Create menu to show viewpoint options
            PopupMenu mapsMenu = new PopupMenu(this, viewpointsButton);
            mapsMenu.MenuItemClick += OnViewpointMenuItemClicked;

            // Create menu options
            foreach (string title in _titles)

            // Show menu in the view

        private async void OnViewpointMenuItemClicked(object sender, PopupMenu.MenuItemClickEventArgs e)
                // Get title from the selected item
                string selectedMapTitle = e.Item.TitleCondensedFormatted.ToString();

                switch (selectedMapTitle)
                    case "Geometry":

                        // Set Viewpoint using Redlands envelope defined above and a padding of 20
                        await _myMapView.SetViewpointGeometryAsync(_redlandsPolygon, 20);

                    case "Center & Scale":

                        // Set Viewpoint so that it is centered on the London coordinates defined above
                        await _myMapView.SetViewpointCenterAsync(_londonCoords);

                        // Set the Viewpoint scale to match the specified scale
                        await _myMapView.SetViewpointScaleAsync(LondonScale);

                    case "Animate":

                        // Navigate to full extent of the first baselayer before animating to specified geometry
                        await _myMapView.SetViewpointAsync(
                            new Viewpoint(_myMapView.Map.Basemap.BaseLayers.First().FullExtent));

                        // Create a new Viewpoint using the specified geometry
                        Viewpoint viewpoint = new Viewpoint(_edinburghPolygon);

                        // Set Viewpoint of MapView to the Viewpoint created above and animate to it using a timespan of 5 seconds
                        await _myMapView.SetViewpointAsync(viewpoint, TimeSpan.FromSeconds(5));

            catch (Exception ex)
                new AlertDialog.Builder(this).SetMessage(ex.ToString()).SetTitle("Error").Show();

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

            // Create button to show possible map options
            Button mapsButton = new Button(this)
                Text = "Change viewpoint"

            mapsButton.Click += OnMapsClicked;

            // Add maps button to the layout

            // Add the map view to the layout
            _myMapView = new MapView(this);

            // Show the layout in the app

Xamarin Forms Android

Example Name: ArcGISTiledLayerUrl

Load an ArcGIS tiled layer from a URL.

Code example screen shot.

// 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 Esri.ArcGISRuntime.Mapping;
using System;
using Xamarin.Forms;

namespace ArcGISRuntime.Samples.ArcGISTiledLayerUrl
        "ArcGIS tiled layer (URL)",
        "This sample demonstrates how to add an ArcGISTiledLayer as a base layer in a map. The ArcGISTiledLayer comes from an ArcGIS Server sample web service.",
    public partial class ArcGISTiledLayerUrl : ContentPage
        public ArcGISTiledLayerUrl ()
            InitializeComponent ();

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

        private void Initialize()
            // Create new Map
            Map myMap = new Map();

            // Create uri to the tiled service
            Uri serviceUri = new Uri(

            // Create new tiled layer from the url
            ArcGISTiledLayer imageLayer = new ArcGISTiledLayer(serviceUri);

            // Add created layer to the basemaps collection

            // Assign the map to the MapView
            MyMapView.Map = myMap;
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns=""
    <esriUI:MapView x:Name="MyMapView"/>
See Also
Additional Examples
Hyperlink to ExampleDescription
AccessLoadStatusDetermine the map's load status which can be: `NotLoaded`, `FailedToLoad`, `Loading`, `Loaded`.
AddAnIntegratedMeshLayerView an integrated mesh layer from a scene service.
AddEncExchangeSetDisplay nautical charts per the ENC specification.
AddFeaturesAdd features to a feature layer.
AddGraphicsRendererChange the style of all graphics in a graphics overlay by referencing a single symbol style.
AddGraphicsWithSymbolsUse a symbol style to display a graphic on a graphics overlay.
AddPointSceneLayerView a point scene layer from a scene service.
AnalyzeHotspotsUse a geoprocessing service and a set of features to identify statistically significant hot spots and cold spots.
AnalyzeViewshedCalculate a viewshed using a geoprocessing service, in this case showing what parts of a landscape are visible from points on mountainous terrain.
Animate3DGraphicAn `OrbitGeoElementCameraController` follows a graphic while the graphic's position and rotation are animated.
ApplyScheduledUpdatesApply scheduled updates to a downloaded preplanned map area.
ArcGISMapImageLayerUrlAdd an ArcGIS Map Image Layer from a URL to a map.
ArcGISTiledLayerUrlLoad an ArcGIS tiled layer from a URL.
ArcGISVectorTiledLayerUrlLoad an ArcGIS Vector Tiled Layer from a URL.
AuthorMapCreate and save a map as an ArcGIS `PortalItem` (i.e. web map).
BrowseWfsLayersBrowse a WFS service for layers.
BufferCreate a buffer around a map point and display the results as a `Graphic`
BufferListGenerate multiple individual buffers or a single unioned buffer around multiple points.
ChangeAtmosphereEffectChanges the appearance of the atmosphere in a scene.
ChangeBasemapChange a map's basemap. A basemap is beneath all layers on an `Map` and is used to provide visual reference for the operational layers.
ChangeBlendRendererBlend a hillshade with a raster by specifying the elevation data. The resulting raster looks similar to the original raster, but with some terrain shading, giving it a textured look.
ChangeEncDisplaySettingsConfigure the display of ENC content.
ChangeFeatureLayerRendererChange the appearance of a feature layer with a renderer.
ChangeStretchRendererUse a stretch renderer to enhance the visual contrast of raster data for analysis.
ChangeSublayerRendererApply a renderer to a sublayer.
ChangeSublayerVisibilityChange the visibility of sublayers.
ChangeTimeExtentThis sample demonstrates how to filter data in layers by applying a time extent to a MapView.
ChangeViewpointSet the map view to a new viewpoint.
ChooseCameraControllerControl the behavior of the camera in a scene.
ClipGeometryClip a geometry with another geometry.
ClosestFacilityFind a route to the closest facility from a location.
ClosestFacilityStaticFind routes from several locations to the respective closest facility.
ControlAnnotationSublayerVisibilityUse annotation sublayers to gain finer control of annotation layer subtypes.
ConvexHullCreate a convex hull for a given set of points. The convex hull is a polygon with shortest perimeter that encloses a set of points. As a visual analogy, consider a set of points as nails in a board. The convex hull of the points would be like a rubber band stretched around the outermost nails.
ConvexHullListThis sample demonstrates how to use the GeometryEngine.ConvexHull to generate convex hull polygon(s) from multiple input geometries.
CreateAndSaveKmlFileConstruct a KML document and save it as a KMZ file.
CreateFeatureCollectionLayerCreate a Feature Collection Layer from a Feature Collection Table, and add it to a map.
CreateGeometriesCreate simple geometry types.
CreateTerrainSurfaceFromRasterUse a terrain surface with elevation described by a raster file.
CreateTerrainSurfaceFromTilePackageSet the terrain surface with elevation described by a local tile package.
CustomDictionaryStyleUse a custom dictionary style (.stylx) to symbolize features using a variety of attribute values.
CutGeometryCut a geometry along a polyline.
DeleteFeaturesDelete features from an online feature service.
DensifyAndGeneralizeA multipart geometry can be densified by adding interpolated points at regular intervals. Generalizing multipart geometry simplifies it while preserving its general shape. Densifying a multipart geometry adds more vertices at regular intervals.
DictionaryRendererGraphicsOverlayRender graphics with mil2525d symbols.
DisplayAnnotationDisplay annotation from a feature service URL.
DisplayDeviceLocationDisplay your current position on the map, as well as switch between different types of auto pan Modes.
DisplayDrawingStatusGet the draw status of your map view or scene view to know when all layers in the map or scene have finished drawing.
DisplayGridDisplay coordinate system grids including Latitude/Longitude, MGRS, UTM and USNG on a map view. Also, toggle label visibility and change the color of grid lines and grid labels.
DisplayKmlLoad and display KML from a URL, a local file, or a portal item.
DisplayKmlNetworkLinks Display a file with a KML network link.
DisplayLayerViewStateView the status of the layers on the map.
DisplayMapDisplay a map with an imagery basemap.
DisplaySceneDisplay a scene with a terrain surface and some imagery.
DisplayWfsDisplay a layer from a WFS service, requesting only features for the current extent.
DistanceMeasurementMeasure distances between two points in 3D.
DownloadPreplannedMapTake a map offline using an available preplanned map area.
EditAndSyncFeaturesSynchronize offline edits with a feature service.
EditFeatureAttachmentsAdd, delete, and download attachments for features from a service.
EditKmlGroundOverlayEdit the values of a KML ground overlay.
ExportTilesDownload tiles to a local tile cache file stored on the device.
FeatureCollectionLayerFromPortalThis sample demonstrates opening a feature collection saved as a portal item.
FeatureCollectionLayerFromQueryCreate a feature collection layer to show a query result from a service feature table. The feature collection is then displayed on a map with a feature collection layer.
FeatureLayerDefinitionExpressionLimit the features to display on the map using a definition expression.
FeatureLayerDictionaryRendererConvert features into graphics to show them with mil2525d symbols.
FeatureLayerExtrusionExtrude features based on their attributes.
FeatureLayerGeodatabaseDisplay features from a local geodatabase.
FeatureLayerGeoPackageDisplay features from a local GeoPackage.
FeatureLayerQueryFind features in a feature table which match an SQL query.
FeatureLayerRenderingModeMapRender features statically or dynamically by setting the feature layer rendering mode.
FeatureLayerRenderingModeSceneRender features in a scene statically or dynamically by setting the feature layer rendering mode.
FeatureLayerSelectionSelect features in a feature layer.
FeatureLayerShapefileOpen a shapefile stored on the device and display it as a feature layer with default symbology.
FeatureLayerTimeOffsetShow data from the same service side-by-side with a time offset. This allows for the comparison of data over time.
FeatureLayerUrlShow a feature layer on a map using the URL to the service.
FindAddressFind the location for an address.
FindPlaceFind places of interest near a location or within a specific area.
FindRouteDisplay directions for a route between two points.
FindServiceAreaFind the service area within a network from a given point.
FindServiceAreasForMultipleFacilitiesFind the service areas of several facilities from a feature service.
FormatCoordinatesFormat coordinates in a variety of common notations.
GenerateGeodatabaseGenerate a local geodatabase from an online feature service.
GenerateOfflineMapTake a web map offline.
GenerateOfflineMapWithOverridesUse the `OfflineMapTask` with overrides to take a webmap offline. The overrides workflow allows you to adjust the settings used for taking each layer in the map offline. For a simple example of how you take a map offline, please consult the "Generate Offline Map" sample.
GeodatabaseTransactionsThis sample demonstrates how to manage edits to a local geodatabase inside of transactions.
GeodesicOperationsThis sample demonstrates how to perform geodesic operations on geometries using the GeometryEngine. Geodesic calculations take into account the curvature of the Earth, while planar calculations are based on a 2D Cartesian plane.
GeoViewSyncKeep the view points of two views (a MapView and a SceneView in this case) synchronized with each other.
GetElevationAtPointGet the elevation for a given point on a surface in a scene.
GroupLayersGroup a collection of layers together and toggle their visibility as a group.
HonorMobileMapPackageExpirationAccess the expiration information of an expired mobile map package.
IdentifyGraphicsDisplay an alert message when a graphic is clicked.
IdentifyKmlFeaturesThis sample demonstrates how to identify features in a KML layer. Identified feature attributes are displayed in a callout to simulate a popup.
IdentifyLayersIdentify features in all layers in a map. MapView supports identifying features across multiple layers. Because some layer types have sublayers, the sample recursively counts results for sublayers within each layer.
IntegratedWindowsAuthUse Windows credentials to access services hosted on a portal secured with Integrated Windows Authentication (IWA).
LineOfSightGeoElementShow a line of sight between two moving objects.
LineOfSightLocationPerform a line of sight analysis between two points in real time.
ListGeodatabaseVersionsThis sample calls a custom GeoprocessingTask to get a list of available versions for an enterprise geodatabase. The task returns a table of geodatabase version information, which is displayed in the app as a list.
ListKmlContentsList the contents of a KML file. KML files can contain a hierarchy of features, including network links to other KML content.
ListRelatedFeaturesList features related to the selected feature.
ListTransformationsGet a list of suitable transformations for projecting a geometry between two spatial references with different horizontal datums.
LoadWebTiledLayerDisplay a tiled web layer.
ManageBookmarksAccess and create bookmarks on a map.
ManageOperationalLayersAdd, remove, and reorder operational layers in a map.
MapImageLayerTablesFind features in a spatial table related to features in a non-spatial table.
MapImageSublayerQueryFind features in a sublayer based on attributes and location.
MapReferenceScaleSet a map's reference scale and control which feature layers should honor that scale.
MapRotationRotate a map.
MobileMapSearchAndRouteDisplay maps and use locators to enable search and routing offline using a Mobile Map Package.
NavigateRouteUse a routing service to navigate between points.
NavigateRouteReroutingNavigate between two points and dynamically recalculate an alternate route when the original route is unavailable.
NearestVertexShows how to find the nearest vertex on a geometry to a given point.
OAuthThis sample demonstrates how to authenticate with ArcGIS Online (or your own portal) using OAuth2 to access secured resources (such as private web maps or layers). Accessing secured items requires a login on the portal that hosts them (an ArcGIS Online account, for example).
OfflineBasemapByReferenceUse the `OfflineMapTask` to take a web map offline, but instead of downloading an online basemap, use one which is already on the device.
OfflineGeocodeGeocode addresses to locations and reverse geocode locations to addresses offline.
OfflineRoutingSolve a route on-the-fly using offline data.
OpenMapURLDisplay a web map.
OpenMobileMapDisplay a map from a mobile map package.
OpenMobileScenePackageOpen and display a scene from a Mobile Scene Package (.mspk).
OpenSceneOpen a scene from a Portal item. Just like Web Maps are the ArcGIS format for maps, Web Scenes are the ArcGIS format for scenes. These scenes can be stored in ArcGIS Online or Portal.
OpenStreetMapLayerAdd OpenStreetMap as a basemap layer.
PlayKmlToursPlay tours in KML files.
ProjectProject a point from one spatial reference to another.
ProjectWithSpecificTransformationThis sample demonstrates how to use the GeometryEngine with a specified geographic transformation to transform a geometry from one coordinate system to another.
QueryFeatureCountAndExtentZoom to features matching a query and count the features in the current visible extent.
RasterColormapRendererApply a colormap renderer to a raster.
RasterHillshadeUse a hillshade renderer on a raster.
RasterLayerFileCreate and use a raster layer made from a local raster file.
RasterLayerGeoPackageOpen a `GeoPackage`, obtain a raster from the package, and display the table as a `RasterLayer`.
RasterLayerImageServiceRasterCreate a raster layer from a raster image service.
RasterLayerRasterFunctionShow a raster layer from an image service with a raster function applied.
RasterRenderingRuleDisplay a raster on a map and apply different rendering rules to that raster.
RasterRgbRendererUse an `RGBRenderer` on a `RasterLayer`. An `RGBRenderer` is used to adjust the color bands of a multispectral image.
ReadGeoPackageAdd rasters and feature tables from GeoPackages to a map.
ReadShapefileMetadataRead a shapefile and display its metadata.
RenderPictureMarkersUse pictures for markers.
RenderSimpleMarkersShow a simple marker symbol on a map.
RenderUniqueValuesRender features in a layer using a distinct symbol for each unique attribute value.
ReverseGeocodeUse an online service to find the address for a tapped point.
RouteAroundBarriersFind a route that reaches all stops without crossing any barriers.
SceneLayerSelectionIdentify GeoElements in a scene layer.
SceneLayerUrlDisplay an ArcGIS scene layer from a URL.
ScenePropertiesExpressionsUpdate the orientation of a graphic using scene property rotation expressions.
SceneSymbolsShow various kinds of 3D symbols in a scene.
SearchPortalMapsFind webmap portal items by using a search term.
SelectEncFeaturesSelect features in an ENC layer.
ServiceFeatureTableCacheDisplay a feature layer from a service using the **on interaction cache** feature request mode.
ServiceFeatureTableManualCacheDisplay a feature layer from a service using the **manual cache** feature request mode.
ServiceFeatureTableNoCacheDisplay a feature layer from a service using the **no cache** feature request mode.
SetInitialMapAreaDisplay the map at an initial viewpoint representing a bounding geometry.
SetInitialMapLocationDisplay a map centered on an initial point with a specified level of detail (zoom level).
SetMapSpatialReferenceSpecify a map's spatial reference.
SetMinMaxScaleRestrict zooming between specific scale ranges.
ShowCalloutShow a callout with the latitude and longitude of user-tapped points.
ShowLabelsOnLayerDisplay custom labels on a feature layer.
ShowLocationHistoryDisplay your location history on the map.
ShowMagnifierTap and hold on a map to show a magnifier.
SimpleRenderersDisplay common symbols for all graphics in a graphics overlay with a renderer.
SketchOnMapUse the Sketch Editor to edit or sketch a new point, line, or polygon geometry on to a map.
SpatialOperationsFind the union, intersection, or difference of two geometries.
SpatialRelationshipsDetermine spatial relationships between two geometries.
StatisticalQueryQuery a table to get aggregated statistics back for a specific field.
StatsQueryGroupAndSortQuery a feature table for statistics, grouping and sorting by different fields.
StyleWmsLayerDiscover available styles and apply them to WMS sublayers.
SurfacePlacementsPosition graphics relative to a surface using different surface placement modes.
SymbolizeShapefileDisplay a shapefile with custom symbology.
SymbolsFromMobileStyleOpen a mobile style (.stylx) and read its contents. Combine several symbols from the style into a single multilayer point symbol, then use it to display graphics in the map view.
TakeScreenshotTake a screenshot of the map.
TerrainExaggerationConfigure the vertical exaggeration of terrain (the ground surface) in a scene.
TimeBasedQueryThis sample demonstrates how to query data using a time extent. This workflow can be used to return records that are between a specified start and end date. For example, you could specify to only show records that are before September 16, 2000.
TokenSecuredChallengeThis sample demonstrates how to prompt the user for a username and password to authenticate with ArcGIS Server to access an ArcGIS token-secured service. Accessing secured services requires a login that's been defined on the server.
TraceUtilityNetworkDiscover connected features in a utility network using connected, subnetwork, upstream, and downstream traces.
UpdateAttributesUpdate feature attributes in an online feature service.
UpdateGeometriesUpdate a feature's location in an online feature service.
UseDistanceCompositeSymChange a graphic's symbol based on the camera's proximity to it.
ViewContentBeneathSurfaceSee through terrain in a scene and move the camera underground.
ViewPointCloudDataOfflineDisplay local 3D point cloud data.
ViewshedCameraAnalyze the viewshed for a camera. A viewshed shows the visible and obstructed areas from an observer's vantage point.
ViewshedGeoElementAnalyze the viewshed for an object (GeoElement) in a scene.
ViewshedLocationPerform a viewshed analysis from a defined vantage point. Viewshed analyses have several configuration options that are demonstrated in this sample.
WfsXmlQueryLoad a WFS feature table using an XML query.
WmsIdentifyIdentify features in a WMS layer and display the associated popup content.
WMSLayerUrlDisplay a WMS layer using a WMS service URL.
WmsServiceCatalogConnect to a WMS service and show the available layers and sublayers. Layers are shown in a hierarchy. Selecting a group layer will recursively select all sublayers for display.
WMTSLayerDisplay a layer from a Web Map Tile Service.