private void ShowSaveMapUI()
{
if (_mapInfoUI != null)
{
return;
}
// Create a view to show map item info entry controls over the map view
var ovBounds = new CoreGraphics.CGRect(0, 60, View.Bounds.Width, View.Bounds.Height - 60);
_mapInfoUI = new SaveMapDialogOverlay(ovBounds, 0.75f, UIColor.White, (PortalItem)_myMapView.Map.Item);
// Handle the OnMapInfoEntered event to get the info entered by the user
_mapInfoUI.OnMapInfoEntered += MapItemInfoEntered;
// Handle the cancel event when the user closes the dialog without choosing to save
_mapInfoUI.OnCanceled += SaveCanceled;
// Add the map item info UI view (will display semi-transparent over the map view)
View.Add(_mapInfoUI);
}
private void ShowSaveMapUi()
{
if (_mapInfoUi != null)
{
return;
}
// Create a view to show map item info entry controls over the map view.
nfloat topMargin = NavigationController.NavigationBar.Frame.Height + UIApplication.SharedApplication.StatusBarFrame.Height;
var ovBounds = new CGRect(5, topMargin + 5, View.Bounds.Width - 10, View.Bounds.Height - topMargin - 45);
_mapInfoUi = new SaveMapDialogOverlay(ovBounds, 0.75f, UIColor.White, (PortalItem)_myMapView.Map.Item);
// Handle the OnMapInfoEntered event to get the info entered by the user.
_mapInfoUi.OnMapInfoEntered += MapItemInfoEntered;
// Handle the cancel event when the user closes the dialog without choosing to save.
_mapInfoUi.OnCanceled += SaveCanceled;
// Add the map item info UI view (will display semi-transparent over the map view).
View.Add(_mapInfoUi);
}
private void SaveCanceled(object sender, EventArgs e)
{
// Remove the item input UI.
_mapInfoUi.Hide();
_mapInfoUi = null;
}
// 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)
{
// Get the current map.
var myMap = _myMapView.Map;
try
{
// Show the activity indicator so the user knows work is happening.
_activityIndicator.StartAnimating();
// Get information entered by the user for the new portal item properties.
string title = e.Title;
string description = e.Description;
string[] tags = e.Tags;
// Apply the current extent as the map's initial extent.
myMap.InitialViewpoint = _myMapView.GetCurrentViewpoint(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 (has an associated portal item).
if (myMap.Item == null)
{
// Call a function to save the map as a new portal item.
await SaveNewMapAsync(myMap, 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
{
// This is not the initial save, call SaveAsync to save changes to the existing portal item.
await myMap.SaveAsync();
// Get the file stream from the new thumbnail image.
Stream imageStream = await thumbnailImg.GetEncodedBufferAsync();
// Update the item thumbnail.
(myMap.Item as PortalItem).SetThumbnailWithImage(imageStream);
await myMap.SaveAsync();
// Report update was successful.
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)
{
// Report save error.
UIAlertController alert = UIAlertController.Create("Error", "Unable to save " + e.Title, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
finally
{
// Get rid of the item input controls.
_mapInfoUi.Hide();
_mapInfoUi = null;
// Hide the progress bar.
_activityIndicator.StopAnimating();
}
}