Get the current first responder without using a private API

Question

I submitted my app a little over a week ago and got the dreaded rejection email today. It tells me that my app cannot be accepted because I\'m using a non-public API; specif

Answer 1

With a category on UIResponder, it is possible to legally ask the UIApplication object to tell you who the first responder is.

See this:

Is there any way of asking an iOS view which of its children has first responder status?