Cheesebaron.ParallaxScrollView.ParallaxScrollView.OrganiseForegroundView C# (CSharp) Method

        private void OrganiseForegroundView(View foreground)
        {
            var insertPos = ChildCount - 1;

            if (foreground is ObservableScrollView)
            {
                _scrollView = (ObservableScrollView)foreground;
                _scrollView.ScrollChanged -= ScrollViewOnScrollChanged;
            }
            else if (foreground is ViewGroup && !(foreground is ScrollView))
            {
                _scrollView = new ObservableScrollView(Context, null);
                RemoveView(foreground);
                _scrollView.AddView(foreground);
                AddView(_scrollView, insertPos);
            }
            else if (foreground is ScrollView)
            {
                var child = ((ScrollView) foreground).ChildCount > 0 ?
                    ((ScrollView) foreground).GetChildAt(0) : null;

                _scrollView = new ObservableScrollView(Context, null);
                RemoveView(foreground);
                if (child != null)
                    _scrollView.AddView(child);
                AddView(_scrollView, insertPos);
            }
            else
            {
                _scrollView = new ObservableScrollView(Context, null);
                RemoveView(foreground);
                _scrollView.AddView(foreground);
                AddView(_scrollView, insertPos);
            }

            if (_scrollView != null)
            {
                _scrollView.LayoutParameters = foreground.LayoutParameters;
                _scrollView.ScrollChanged += ScrollViewOnScrollChanged;
                _scrollView.FillViewport = true;
            }
        }