In iOS there is no simple call to retrieve the current first responder (without resorting to private APIs). A google search turns up lots of methods that involving walking the view hierarchy, but I really like this simple, efficient method by Jakob Egger posted as an answer to this question on stack overflow.
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#import "UIResponder+FirstResponder.h" static __weak id currentFirstResponder; @implementation UIResponder (FirstResponder) +(id)currentFirstResponder { currentFirstResponder = nil; [[UIApplication sharedApplication] sendAction:@selector(findFirstResponder:) to:nil from:nil forEvent:nil]; return currentFirstResponder; } -(void)findFirstResponder:(id)sender { currentFirstResponder = self; } @end |
I don’t normally repost code from stack overflow, but the google incantations necessary to find this are non-obvious.
