title: Change DatePickerDialog's button texts
body: <p>I'm having some trouble changing the text of the buttons of the dialog.</p>
  
  <p>I tried to use:</p>
  
  <pre><code>setButton(int whichButton,
            CharSequence text,
            DialogInterface.OnClickListener listener)
  </code></pre>
  
  <p>and </p>
  
  <pre><code>setButton(int whichButton, CharSequence text, Message msg)
  </code></pre>
  
  <p>But I could not figure out what to put as the third parameter. I could pass a new <code>OnClickListener</code>, but I would like to use the callback <code>DatePickerDialog.OnDateSetListener</code>.</p>
  
  <p>I guess when I set a new <code>Listener</code> to the <code>Button</code> the <code>DateSetListener</code> won't ne called anymore?</p>