title: iPhone UITableViewCell layer shadow
body: <p>I'm trying to add a shadow to a UITableViewCell using the layer.shadowColor, Offset, Radius but it doesn't seem to affect it in any way. The table is grouped style. Any ideas why?</p>
  
  <p>Here is the code i'm using:</p>
  
  <pre><code>cell.layer.shadowColor= [UIColor blackColor].CGColor;
  cell.layer.shadowRadius = 5.0;
  cell.layer.shadowOffset = CGSizeMake(10, 10);
  </code></pre>