How do I make the ScopeBar appear when someone clicks in the search field of UISearchBar on iphone
<p>I would like to make the ScopeBar appear when a user clicks on the search field of the UISearchBar just like the email search bar works.  I can have the scope bar always on or always off but can't seem to control its display when a user clicks on the search bar.   I have used [searchBar setShowsScopeBar:YES] and it does change the property correctly but how do I then display it?</p>

<p>Thanks</p>
