ListView阻止自动滚动项目点击？

Question

试图弄清楚我是否可以禁用当用户点击ListView中的单元格时发生的自动滚动（如果重要的话，我正在使用回收列表视图）。我已经将sender.SelectedItem设置为null以禁用单元格突出显示。

gridList.ItemSelected += (s, e) => {                    
      ((Xamarin.Forms.ListView)s).SelectedItem = null;        
}; 

更新 ItemTemplate布局

            headline = new Xamarin.Forms.Label();
            cellImage = new Xamarin.Forms.Image();
            LoadingText = new Xamarin.Forms.Label();
            LoadingText.Text = "Loading...";
            layout = new Xamarin.Forms.Grid();
            layout.RowDefinitions.Add(new Xamarin.Forms.RowDefinition { Height = new Xamarin.Forms.GridLength(1, Xamarin.Forms.GridUnitType.Star) });
            layout.ColumnDefinitions.Add(new Xamarin.Forms.ColumnDefinition { Width = new Xamarin.Forms.GridLength(1, Xamarin.Forms.GridUnitType.Star) });
            layout.Children.Add(LoadingText, 0, 0);
            layout.Children.Add(headline, 0, 0);
            layout.Children.Add(cellImage, 0, 0);
            layout.Children.Add(activityIndicator, 0, 0);

            LoadingText.HorizontalOptions = Xamarin.Forms.LayoutOptions.CenterAndExpand;
            LoadingText.VerticalOptions = Xamarin.Forms.LayoutOptions.CenterAndExpand;
            layout.HorizontalOptions = Xamarin.Forms.LayoutOptions.CenterAndExpand;
            layout.VerticalOptions = Xamarin.Forms.LayoutOptions.CenterAndExpand;
            cellImage.HorizontalOptions = Xamarin.Forms.LayoutOptions.CenterAndExpand;
            cellImage.VerticalOptions = Xamarin.Forms.LayoutOptions.CenterAndExpand;

            if(!hasLoadedAdAtLeastOnce)
            {
                AdView.Content.TranslationY = 5;
                AdView.Content.TranslationX = -20;
                hasLoadedAdAtLeastOnce = true;
            }

            cellImage.WidthRequest = 260;
            cellImage.HeightRequest = 173;
            _ad = (Controls.Ad)AdView.Content;
            View = layout;