I'm not in a position to verify this at the moment, but I believe it is because of garbage collection. When a subview is added, it is not released fully when removed. If you are not removing subviews, then I think it's OK. You can uncomment that addView line and check it out.
Comments
When a subview is added, it is not released fully when removed.
If you are not removing subviews, then I think it's OK.
You can uncomment that addView line and check it out.