title: Can't change UITableViewCell contentView height
body: <p>I have a custom <code>uitableviewcell</code>.</p>
  
  <p>i want to change its height based on some if condition.
  How can i be able to do this ?</p>
  
  <p>I tried doing this in <code>cellForRowAtIndexPath</code>  -  </p>
  
  <pre><code>if (cell.newsFeedImage.image == NULL)
  {
      NSLog(@"NULL");
      cell.uDisplayImage.frame = CGRectMake(20, 20, 20, 20);
  }
  </code></pre>
  
  <p>The log message appears, but the frame never changes.</p>
  
  <p>Please help.</p>