Is there a way to know when a view is viewable to user?

Posted by Shay on Stack Overflow See other posts from Stack Overflow or by Shay
Published on 2010-04-13T07:49:29Z Indexed on 2010/04/13 7:52 UTC
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iphone

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visible

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uiview

Hi

Is there a way to know when a view is viewable to user?

For example: if I have 2 views, and one of them is "hiding" the other-

how can I tell that the "hidden" view is currently not visible on screen,

and how can I check to see when it becomes visible again?

Thanks.

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