| public SaveNewMapAsync ( Viewpoint initialViewpoint, string title, string description, string tags ) : System.Threading.Tasks.Task | ||
| initialViewpoint | Viewpoint | |
| title | string | |
| description | string | |
| tags | string | |
| Résultat | System.Threading.Tasks.Task | |
// 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;
}
}
}
// Click event for the OK button on the save map dialog
private async void OnCloseSaveDialog(object sender, EventArgs e)
{
if (_saveDialog != null)
{
// Get title and description text
var title = _titleText.Text;
var description = _descriptionText.Text;
// Dismiss the dialog
_saveDialog.Dismiss();
// Return if the text is null or empty for either
if (string.IsNullOrEmpty(title) || string.IsNullOrEmpty(description))
{
return;
}
// Get the map view's current extent (viewpoint) to use as the web map initial extent
Viewpoint initialMapViewpoint = _mapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry);
// Export the current map view for the item's thumbnail
RuntimeImage thumbnailImg = await _mapView.ExportImageAsync();
// Provide some default tags for the item
var tags = new string[] { "ArcGIS Runtime SDK", "tutorial" };
try
{
// Call a function on the view model to save the map as a new portal item
await _mapViewModel.SaveNewMapAsync(initialMapViewpoint, title, description, tags, thumbnailImg);
// Report a successful save
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
dialogBuilder.SetTitle("Map Saved!");
dialogBuilder.SetMessage("Your map ('" + title + "' was saved to ArcGIS Online");
dialogBuilder.Show();
}
catch (Exception ex)
{
// Show the exception message
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
dialogBuilder.SetTitle("Error");
dialogBuilder.SetMessage("Unable to save: " + ex.Message);
dialogBuilder.Show();
}
}
}
// 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");
}
}
