UISearchBar as UITableView header problem

[kientux]

When I use UISearchBar as UITableView tableHeaderView, when scrolling up the first time, navigation bar will hide immediately instead of fading out. It won't happen next times I scroll up. I used the latest code.

My temporary fix is hiding the search bar first by setting the table view content offset:

[_tableView setContentOffset:CGPointMake(0, 44)];