make UIView in UIScrollView stick to the top when scrolled up

Question

So in a UITableView when you have sections the section view sticks to the top until the next section overlaps it and then it replaces it on top. I want to have a similar eff

Answer 1

If I recall correctly, the 2010 WWDC ScrollView presentation discusses precisely how to keep a view in a fixed position while other elements scroll around it. Watch the video and you should have a clear-cut approach to implement.

It's essentially updating frames based on scrollViewDidScroll callbacks (although memory is a bit hazy on the finer points).