title: Is there any way of asking an iOS view which of its children has first responder status?
body: <p>In Mac OS X, you can find the first responder like this:</p>
  
  <pre><code>[[self window] firstResponder]
  </code></pre>
  
  <p>Is there any way of doing it in iOS?  Or do you need to enumerate the child controls and send an <code>isFirstResponder</code>message to each one?</p>