title: How to animate UITableView header view
body: <p>I need to animate the insertion of a tableview header view. I want that the table rows to slide down while the header view expands its frame.<br>
  So far the best result I got is by using the following code:  </p>
  
  <pre><code>[self.tableView beginUpdates];  
  [self.tableView setTableHeaderView:self.someHeaderView];  
  [self.tableView endUpdates];
  </code></pre>
  
  <p>The problem with this solution is that the header itself doesn't get animated, its frame doesn't expand.</p>
  
  <p>So the effect I'm getting is that the table rows slide down (as I want) but the header view is immediately shown, and I want it to expand it's frame with animation.</p>
  
  <p>Any ideas?</p>
  
  <p>Thanks.</p>