protected async override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.PopupViewerSample);
// Used in Callout to see feature details in PopupViewer
_infoIcon = await RuntimeImage.FromStreamAsync(Assets.Open("info.png"));
// Used to demonstrate display of EditSummary in PopupViewer
// Provides credentials to token-secured layer that has editor-tracking enabled
AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(async(info) =>
{
return(await AuthenticationManager.Current.GenerateCredentialAsync(info.ServiceUri, "user1", "user1"));
});
mapView = FindViewById <MapView>(Resource.Id.mapView);
mapView.Map = new Map(Basemap.CreateLightGrayCanvasVector());
mapView.GeoViewTapped += mapView_GeoViewTapped;
// Webmap configured with Popup
mapView.Map = new Map(new Uri("https://www.arcgis.com/home/item.html?id=d4fe39d300c24672b1821fa8450b6ae2"));
popupViewer = FindViewById <UI.Controls.PopupViewer>(Resource.Id.popupViewer);
}
private async void LoadService(string uri)
{
var client = await StreamServiceClient.CreateAsync(new Uri(uri));
client.FeatureTimeout = TimeSpan.FromMinutes(5); // Removes any features that hasn't reported back in over 5 minutes
client.OnUpdate += Client_OnUpdate;
// Create overlay for rendering updates
var si = typeof(LocationDisplay).Assembly.GetManifestResourceStream("Esri.ArcGISRuntime.Esri.ArcGISRuntime.LocationDisplayCourse.scale-200.png");
var ri = await RuntimeImage.FromStreamAsync(si);
PictureMarkerSymbol vehicleSymbol = new PictureMarkerSymbol(ri)
{
Width = 25, Height = 25
};
var overlay = new Esri.ArcGISRuntime.UI.GraphicsOverlay()
{
Renderer = new SimpleRenderer(vehicleSymbol),
SceneProperties = new LayerSceneProperties(SurfacePlacement.Absolute) //In case we use it in 3D and have Z values
};
var headingField = client.ServiceInfo.Fields.Where(f => f.Name.ToLower() == "heading").Select(f => f.Name).FirstOrDefault();
if (!string.IsNullOrEmpty(headingField))
{
overlay.Renderer.RotationExpression = $"[{headingField}]";
overlay.Renderer.SceneProperties.HeadingExpression = $"[{headingField}]";
}
mapView.GraphicsOverlays.Add(overlay);
client.Overlay = overlay;
// Connect
await client.ConnectAsync();
}
/// <summary>
/// Initializes and if necessary provisions the data needed for the application
/// </summary>
/// <returns></returns>
public async Task LoadAsync()
{
try
{
await ProvisionDataAsync();
}
catch (System.Exception ex)
{
UpdateLoadStatus("Failed to provision data:\n" + ex.Message);
}
UpdateLoadStatus("Initializing map...");
GeocodeHelper.Initialize();
PictureMarkerSymbol a;
PictureMarkerSymbol b;
using (var markera = typeof(MapViewModel).Assembly.GetManifestResourceStream("OfficeLocator.Core.MarkerA.png"))
{
a = new PictureMarkerSymbol(await RuntimeImage.FromStreamAsync(markera))
{
Width = 20, Height = 20
};
}
using (var markerb = typeof(MapViewModel).Assembly.GetManifestResourceStream("OfficeLocator.Core.MarkerB.png"))
{
b = new PictureMarkerSymbol(await RuntimeImage.FromStreamAsync(markerb))
{
Width = 20, Height = 20
};
}
Overlays[1].Graphics.Add(new Graphic()
{
Symbol = a
}); //From
Overlays[1].Graphics.Add(new Graphic()
{
Symbol = b
}); //To
try
{
await InitializeMap();
InitializeScene();
IsLoaded = true;
UpdateLoadStatus("");
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsLoaded)));
DoStartupZoomIn();
}
catch (System.Exception ex)
{
System.Diagnostics.Debug.WriteLine($"An unexpected error occured while loading the map: {ex.Message}");
UpdateLoadStatus(ex.Message);
}
}
