cocoa touch - How to know which UIView index or tag has been shown by UIScrollView? -

I have a UIScrollView with many tagged images. I have to process some code after selecting a specific image inside the user UIScrollView . To perform this process, I need to know what image or UIScrollView was showing when the user selected.

I tried to track the frame.origin.x of my subviews, but without success

Can you share something about this situation?

  Set the view area of the  bound  of the scrollview.








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