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I was wondering how one would update items such as a UILabel when a scroll view reaches a certain point – I have a picker app in which the user scrolls a UIScrollView and the contents of the screen update relative to the position of the UIScrollView however I would like to know how to actually update the contents of a view, again, things like a UILabel relative to the position of the UIScrollView.
You can use
scrollView.contentOffsetto get current content position inside scrollView.