> On Apr 18, 2015, at 5:32 AM, Gerriet M. Denkmann <[email protected]> wrote:
> 
> Anyway: how can I detect that the table did start scrolling?
> Using a timer to periodically check the index of the top row seems not very 
> efficient.
> 
> There should be a better way.

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIScrollViewDelegate_Protocol/index.html#//apple_ref/occ/intfm/UIScrollViewDelegate/scrollViewDidScroll:


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