iPhone: Howto get notified when an UIView becomes visible

Posted by arne_ on Stack Overflow See other posts from Stack Overflow or by arne_
Published on 2010-03-16T10:12:36Z Indexed on 2010/03/16 10:16 UTC
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iphone

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uiscrollview

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uiview

Is there a way to get a notification, a callback or some other means to call a method whenever a UIView becomes visible for the user, i.e. when a UIScrollview is the superview of some UIViews, and the ViewController of such a UIView shall get notified when its view is now visible to the user?

I am aware of the possible, but not so elegant solution of checking to which position the ScrollView scrolled (via UIScrollViewDelegate-methods) and compute if either one of the subviews is visible...
But I'm looking for a more universal way of doing this.

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