private static void UpdateTile(List<Post> posts)
        {
            var updater = TileUpdateManager.CreateTileUpdaterForApplication();
            updater.EnableNotificationQueue(true);
            updater.Clear();
            foreach (var post in posts)
            {
                var bindingContent = new TileBindingContentAdaptive
                {
                    BackgroundImage = new TileBackgroundImage {Source = new TileImageSource(post.PreviewUrl)}
                };
                var binding = new TileBinding
                {
                    Branding = TileBranding.None,
                    Content = bindingContent
                };
                var content = new TileContent
                {
                    Visual = new TileVisual
                    {
                        TileMedium = binding,
                        TileWide = binding,
                        TileLarge = binding
                    }
                };
                updater.Update(new TileNotification(content.GetXml()));
            }
        }