Programmatically discover identity of first responder

Question

I want a UITextField to be sent the resignFirstResponder message if it is being edited and a user touches elsewhere on the screen. Since there are several text fields I need a way to programmatically determine which one is the first responder to send it the message. How can I do this? Is there some sort of global first responder object?

Thanks, Jacob

Answer 1

UITextField inherits from UIResponder so you can use isFirstResponder (which returns a BOOL) to query it.

if ([myTextField isFirstResponder]) {
    // do stuff
}

Answer 2

The simplest way is to find the first responder and tell it to resignFirstResponder.