/// <summary>
/// Shows a callout for any tapped graphics.
/// </summary>
private async void MyMapView_GeoViewTapped(object sender, GeoViewInputEventArgs e)
{
// Search for the graphics underneath the user's tap.
IReadOnlyList <IdentifyGraphicsOverlayResult> results =
await MyMapView.IdentifyGraphicsOverlaysAsync(e.Position, 12, false);
// Clear callouts and return if there was no result.
if (results.Count < 1 || results.First().Graphics.Count < 1)
{
MyMapView.DismissCallout();
return;
}
// Get the first graphic from the first result.
Graphic matchingGraphic = results.First().Graphics.First();
// Get the title; manually added to the point's attributes in UpdateSearch.
string title = matchingGraphic.Attributes["Match_Title"].ToString();
// Get the address; manually added to the point's attributes in UpdateSearch.
string address = matchingGraphic.Attributes["Match_Address"].ToString();
// Define the callout.
CalloutDefinition calloutBody = new CalloutDefinition(title, address);
// Show the callout on the map at the tapped location.
MyMapView.ShowCalloutAt(e.Location, calloutBody);
}
/// <summary>
/// Handle tap event on the map; displays callouts showing the address for a tapped search result
/// </summary>
private async void MyMapView_GeoViewTapped(object sender, GeoViewInputEventArgs e)
{
// Search for the graphics underneath the user's tap
IReadOnlyList <IdentifyGraphicsOverlayResult> results = await MyMapView.IdentifyGraphicsOverlaysAsync(e.Position, 12, false);
// Return gracefully if there was no result
if (results.Count < 1 || results.First().Graphics.Count < 1)
{
return;
}
// Reverse geocode to get addresses
IReadOnlyList <GeocodeResult> addresses = await _geocoder.ReverseGeocodeAsync(e.Location);
// Get the first result
GeocodeResult address = addresses.First();
// Use the city and region for the Callout Title
string calloutTitle = address.Attributes["City"] + ", " + address.Attributes["Region"];
// Use the metro area for the Callout Detail
string calloutDetail = address.Attributes["MetroArea"].ToString();
// Define the callout
CalloutDefinition calloutBody = new CalloutDefinition(calloutTitle, calloutDetail);
// Show the callout on the map at the tapped location
MyMapView.ShowCalloutAt(e.Location, calloutBody);
}
private async void MyMapView_GeoViewTapped(object sender, Esri.ArcGISRuntime.Xamarin.Forms.GeoViewInputEventArgs e)
{
// Search for the graphics underneath the user's tap
IReadOnlyList <IdentifyGraphicsOverlayResult> results = await MyMapView.IdentifyGraphicsOverlaysAsync(e.Position, 12, false);
// Return gracefully if there was no result
//if (results.Count < 1 || results.First().Graphics.Count < 1) { return; }
// Reverse geocode to get addresses
IReadOnlyList <GeocodeResult> addresses = await _geocoder.ReverseGeocodeAsync(e.Location);
// Get the first result
GeocodeResult address = addresses.First();
// Use the city and region for the Callout Title
//String calloutTitle = address.Attributes["City"] + ", " + address.Attributes["Region"];
String calloutTitle = "日本住所";
// Use the metro area for the Callout Detail
String calloutDetail = address.Attributes["Address"].ToString();
// Use the MapView to convert from the on-screen location to the on-map location
MapPoint point = MyMapView.ScreenToLocation(e.Position);
// Define the callout
CalloutDefinition calloutBody = new CalloutDefinition(calloutTitle, calloutDetail);
// Show the callout on the map at the tapped location
MyMapView.ShowCalloutAt(point, calloutBody);
}
private async Task <Graphic> GetGraphicAsync()
{
// Wait for the user to click a location on the map
var mapPoint = (MapPoint)await MyMapView.SketchEditor.StartAsync(SketchCreationMode.Point, false);
// Convert the map point to a screen point
var screenCoordinate = MyMapView.LocationToScreen(mapPoint);
// Identify graphics in the graphics overlay using the point
var results = await MyMapView.IdentifyGraphicsOverlaysAsync(screenCoordinate, 2, false);
// If results were found, get the first graphic
Graphic graphic = null;
IdentifyGraphicsOverlayResult idResult = results.FirstOrDefault();
if (idResult != null && idResult.Graphics.Count > 0)
{
graphic = idResult.Graphics.FirstOrDefault();
}
// Return the graphic (or null if none were found)
return(graphic);
}
private async void MapViewTapped_Mouse_Point(object sender, GeoViewInputEventArgs geoViewInputEventArgs)
{
// MyMapView_MouseMove(sender, geoViewInputEventArgs);
// IdentifyGraphicsOverlayResult result = null;
// Graphic _identifiedGraphic = null;
_sketchOverlay.Graphics.Clear();
try
{
var pixelTolerance = 1;
var returnPopupsOnly = false;
var maxResults = 100;
System.Windows.Point tapScreenPoint = geoViewInputEventArgs.Position;
MapPoint mapPoint = geoViewInputEventArgs.Location;
var es = Mapcoordinates_Change(mapPoint);
Graphic _pointgraph = point_graphic_creation(es);
Graphic _identifiedGraphic = null;
IReadOnlyList <IdentifyGraphicsOverlayResult> idGraphicOverlayResults = await MyMapView.IdentifyGraphicsOverlaysAsync(tapScreenPoint, pixelTolerance, returnPopupsOnly, maxResults);
if (idGraphicOverlayResults.Count == 1)
{
foreach (IdentifyGraphicsOverlayResult idGraphicResult in idGraphicOverlayResults)
{
// iterate all graphics in the overlay and select them
foreach (Graphic g in idGraphicResult.Graphics)
{
var ter = g.Symbol.ToString();
if (ter != "Esri.ArcGISRuntime.Symbology.TextSymbol")
{
if (g.IsSelected == true)
{
g.IsSelected = false;
}
else
{
g.IsSelected = true;
}
}
else
{
var ter1 = g.Geometry;
// return;
}
}
}
}
else
{
// iterate each graphics overlay
foreach (IdentifyGraphicsOverlayResult idGraphicResult in idGraphicOverlayResults)
{
// iterate all graphics in the overlay and select them
foreach (Graphic g in idGraphicResult.Graphics)
{
var ter = g.Symbol.ToString();
if (ter != "Esri.ArcGISRuntime.Symbology.TextSymbol")
{
if (g.IsSelected == true)
{
g.IsSelected = false;
}
else
{
g.IsSelected = true;
}
}
else
{
var ter1 = g.Geometry;
// return;
}
}
}
// Graphic _graphic = result.Graphics.Last();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error");
}
}
