iOS: Finding out who is first responder on a dynamically changed UITableView -

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i have uitableview have custom cells uitextfields in them. uitableview defined on mainviewcontroller, while cells defined in customcellclass. each time press button, new cell created. having trouble making cell's uitextfield resign first responder, since cells dynamically added , defined in different class main controller. how do that? lot!

tell uitableview endediting:.


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