// Handle the OnMapInfoEntered event from the item input UI // MapSavedEventArgs contains the title, description, and tags that were entered private async void MapItemInfoEntered(object sender, MapSavedEventArgs e) { try { // Get information entered by the user for the new portal item properties var title = e.Title; var description = e.Description; var tags = e.Tags; // Get the current extent var currentViewpoint = _mapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry); // Export the current map view for the item's thumbnail RuntimeImage thumbnailImg = await _mapView.ExportImageAsync(); // See if the map has already been saved (has an associated portal item) if (!_mapViewModel.MapIsSaved) { // Call a method on MapViewModel to save the map as a new portal item await _mapViewModel.SaveNewMapAsync(currentViewpoint, title, description, tags, thumbnailImg); // Report a successful save UIAlertController alert = UIAlertController.Create("Saved map", "Saved " + title + " to ArcGIS Online", UIAlertControllerStyle.Alert); alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null)); PresentViewController(alert, true, null); } else { // Map has previously been saved as a portal item, update it (title, description, and tags will remain the same) _mapViewModel.UpdateMapItem(); // Report success UIAlertController alert = UIAlertController.Create("Updated map", "Saved changes to " + title, UIAlertControllerStyle.Alert); alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null)); PresentViewController(alert, true, null); } } catch (Exception ex) { // Report save error UIAlertController alert = UIAlertController.Create("Error", ex.Message, UIAlertControllerStyle.Alert); alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null)); PresentViewController(alert, true, null); } finally { // Get rid of the item input controls if (_mapInfoUI != null) { _mapInfoUI.Hide(); _mapInfoUI = null; } } }
private async void OnSaveMapClicked(object sender, EventArgs e) { try { // Create a challenge request for portal credentials (OAuth credential request for arcgis.com) CredentialRequestInfo challengeRequest = new CredentialRequestInfo(); // Use the OAuth implicit grant flow challengeRequest.GenerateTokenOptions = new GenerateTokenOptions { TokenAuthenticationType = TokenAuthenticationType.OAuthImplicit }; // Indicate the url (portal) to authenticate with (ArcGIS Online) challengeRequest.ServiceUri = new Uri("https://www.arcgis.com/sharing/rest"); try { // Call GetCredentialAsync on the AuthenticationManager to invoke the challenge handler await AuthenticationManager.Current.GetCredentialAsync(challengeRequest, false); } catch (System.OperationCanceledException) { // user canceled the login throw new Exception("Portal log in was canceled."); } // See if the map has already been saved if (!_mapViewModel.MapIsSaved) { // Map has not been saved ... save to portal for the first time ShowSaveMapDialog(); } else { // Map has previously been saved as a portal item, update it (title and description will remain the same) _mapViewModel.UpdateMapItem(); // Report a successful update AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); dialogBuilder.SetTitle("Map Updated!"); dialogBuilder.SetMessage("Changes to map ('" + _mapViewModel.Map.Item.Title + "' were saved to ArcGIS Online"); dialogBuilder.Show(); } } catch (System.OperationCanceledException) { // user canceled the login } }
// Event handler to get information entered by the user and save the map private async void SaveMapAsync(object sender, ArcGISRuntime.Samples.AuthorEditSaveMap.SaveMapEventArgs e) { try { // Get information entered by the user for the new portal item properties var title = e.MapTitle; var description = e.MapDescription; var tags = e.Tags; // Get the current extent displayed in the map view var currentViewpoint = MyMapView.GetCurrentViewpoint(Esri.ArcGISRuntime.Mapping.ViewpointType.BoundingGeometry); // Export the current map view for the item's thumbnail RuntimeImage thumbnailImg = await MyMapView.ExportImageAsync(); // See if the map has already been saved if (!_mapViewModel.MapIsSaved) { // Save the map as a portal item await _mapViewModel.SaveNewMapAsync(currentViewpoint, title, description, tags, thumbnailImg); // Report a successful save DisplayAlert("Map Saved", "Saved '" + title + "' to ArcGIS Online!", "OK"); } else { // Map has previously been saved as a portal item, update it (title, description, and tags will remain the same) _mapViewModel.UpdateMapItem(); // Report success DisplayAlert("Map Updated", "Saved changes to '" + title + "'", "OK"); } } catch (Exception ex) { // Show the exception message DisplayAlert("Unable to save map", ex.Message, "OK"); } }