void MoveItems(NSIndexPath destinationIndexPath, IUITableViewDropCoordinator coordinator)
{
var destinationAlbum = Album(destinationIndexPath);
foreach (var item in coordinator.Items)
{
var dragItem = item.DragItem;
var photo = dragItem.LocalObject as Photo;
if (photo is null)
{
return;
}
UpdatePhotoLibrary((photoLibrary) =>
{
photoLibrary.MovePhoto(photo, destinationAlbum);
});
var cell = TableView.CellAt(destinationIndexPath) as AlbumTableViewCell;
if (cell != null)
{
var rect = cell.RectForAlbumThumbnail;
if (!rect.HasValue)
{
rect = new CGRect(cell.ContentView.Center, CGSize.Empty);
}
coordinator.DropItemIntoRow(dragItem, destinationIndexPath, rect.Value);
}
UpdateVisibleAlbumsAndPhotos();
}
}
void LoadAndInsertItems(NSIndexPath destinationIndexPath, IUITableViewDropCoordinator coordinator)
{
var destinationAlbum = Album(destinationIndexPath);
foreach (var item in coordinator.Items)
{
var dragItem = item.DragItem;
if (dragItem.ItemProvider.CanLoadObject(typeof(UIImage)))
{
dragItem.ItemProvider.LoadObject <UIImage>((droppedImage, err) => {
var image = droppedImage as UIImage;
if (image != null)
{
var photo = new Photo(image);
UpdatePhotoLibrary((photoLibrary) => {
photoLibrary.Add(photo, destinationAlbum);
});
UpdateVisibleAlbumsAndPhotos();
}
});
var cell = TableView.CellAt(destinationIndexPath) as AlbumTableViewCell;
if (cell != null)
{
var rect = cell.RectForAlbumThumbnail;
if (!rect.HasValue)
{
rect = new CGRect(cell.ContentView.Center, CGSize.Empty); //??
}
coordinator.DropItemIntoRow(dragItem, destinationIndexPath, rect.Value);
}
}
}
}