title: How to show the keyboard for a UIView
body: <p>I have a UIView where I want to receive keyboard input. I have tried:</p>
  
  <pre><code>[self becomeFirstResponder];
  </code></pre>
  
  <p>But it doesn't work. </p>
  
  <p>I could implement a 'dirty' workaround by having a hidden UITextField and forwarding the keystokes to my UIView - but how does my UIView receive the keyboard input directly?</p>