private async void OnMapViewTapped(object sender, Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs e)
{
var tolerance = 10d; // Use larger tolerance for touch
var maximumResults = 1; // Only return one graphic
var onlyReturnPopups = false; // Don't return only popups
// Use the following method to identify graphics in a specific graphics overlay
IdentifyGraphicsOverlayResult identifyResults = await MyMapView.IdentifyGraphicsOverlayAsync(
overlay,
e.Position,
tolerance,
onlyReturnPopups,
maximumResults
);
// Check if we got results
if (identifyResults.Graphics.Count > 0)
{
// Make sure that the UI changes are done in the UI thread
Device.BeginInvokeOnMainThread(async() => {
var json = JsonConvert.SerializeObject(identifyResults.Graphics[0].Attributes, Formatting.Indented);
await DisplayAlert("", json, "OK");
});
}
}
public void GeoViewTapped(object sender, Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs e)
{
if (MySceneView.SetInitialTransformation(e.Position))
{
InitializeSceneAsync();
}
else
{
DisplayAlert("No plane found", "Try moving the phone around until you see white dots", "Ok");
}
}
private async void OnMapViewTapped(object sender, Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs e)
{
var tolerance = 10d; // Use larger tolerance for touch
var maximumResults = 1; // Only return one graphic
// Use the following method to identify graphics in a specific graphics overlay
IReadOnlyList <Graphic> identifyResults = await MyMapView.IdentifyGraphicsOverlayAsync(
_polygonOverlay,
e.Position,
tolerance, maximumResults);
// Check if we got results
if (identifyResults.Count > 0)
{
// Make sure that the UI changes are done in the UI thread
Device.BeginInvokeOnMainThread(async() => {
await DisplayAlert("", "Tapped on graphic", "OK");
});
}
}
private async void MainMapView_GeoViewTapped(object sender, Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs e)
{
Reset();
var layer = MainMapView.Map.OperationalLayers.OfType <FeatureLayer>().FirstOrDefault(X => X.Id == "Victoria_Buildings_4805");
if (layer == null)
{
return;
}
var queryResults = await layer.FeatureTable.QueryFeaturesAsync(new Esri.ArcGISRuntime.Data.QueryParameters()
{
Geometry = GeometryEngine.Buffer(e.Location, 20 * MainMapView.UnitsPerPixel)
});
foreach (var result in queryResults.ToArray())
{
_overlay.Graphics.Add(new Graphic(result.Geometry, _querySymbol));
}
}
