UnityEngine.UI.LoopVerticalScrollRect.UpdateItems C# (CSharp) Method

        protected override bool UpdateItems(Bounds viewBounds, Bounds contentBounds)
        {
            bool changed = false;
            if (viewBounds.min.y < contentBounds.min.y + 1)
            {
                float size = NewItemAtEnd();
                if (size > 0)
                {
                    if (threshold < size)
                    {
                        threshold = size * 1.1f;
                    }
                    changed = true;
                }
            }
            else if (viewBounds.min.y > contentBounds.min.y + threshold)
            {
                float size = DeleteItemAtEnd();
                if (size > 0)
                {
                    changed = true;
                }
            }
            if (viewBounds.max.y > contentBounds.max.y - 1)
            {
                float size = NewItemAtStart();
                if (size > 0)
                {
                    if (threshold < size)
                    {
                        threshold = size * 1.1f;
                    }
                    changed = true;
                }
            }
            else if (viewBounds.max.y < contentBounds.max.y - threshold)
            {
                float size = DeleteItemAtStart();
                if (size > 0)
                {
                    changed = true;
                }
            }
            return changed;
        }