How to refresh a UIWebView by a “pull down and release” gesture?

Question

I know that this is possible in the Tweetie for iPhone or the xkcd iPhone app, but they are using a table. Any idea if this can be done for a simple UIWebView a

Answer 1

To tell the truth, UIWebVIew class has an undocumented getter method called _scrollView; So the code goes:

scrollView = [webView _scrollView];