How is R.drawable able to resolve R.drawable.sample_2, etc?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/3276260/gridview-tutorial-problems">Gridview Tutorial problems</a>  </p>
</blockquote>



<p>In the android grid view tutorial, they use <code>R.drawable.sample_0</code>, <code>R.drawable.sample_1</code>, <code>R.drawable.sample_2</code>, etc.</p>

<p>These properties are not defined in <code>R.drawable</code>. How does java resolve this without errors?</p>
