Usually, a UISearchDisplayController, when activated, dims the tableView and focuses the searchBar. As soon as you enter text into the searchBar, it creates a searchResultsTableView that displays between the searchBar and the keyboard. The searchDisplayController's delegate gets called when this second UITableView is loaded/shown/hidden/unloaded. Usually it shows live search results or autocompletion entries while typing.
In my app, I want to search a webservice and I don't want to call the webservice for each letter the user enters. Therefore, I want to entirely disable the searchResultsTableView and keep the dimmed black overlay while he enters text. I would then trigger the search (with a loading screen) once he hits the search button.
Just returning zero rows for the searchResultsTableView doesn't look nice since it displays an empty searchResultsTableView with a "no results" message. I tried to hide the table when it appears (searchDisplayController:didLoadSearchResultsTableView:
) which works, but the blacked dimmed overlay is also hidden so that the underlying tableView is completely visible again.
Any ideas besides recreating the UISearchDisplayController functionality from scratch?
here is a little trick that i just figured out and also you have to return 0 results while editing searchstring
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
savedSearchTerm = searchString;
[controller.searchResultsTableView setBackgroundColor:[UIColor colorWithWhite:0.0 alpha:0.8]];
[controller.searchResultsTableView setRowHeight:800];
[controller.searchResultsTableView setScrollEnabled:NO];
return NO;
}
- (void)searchDisplayController:(UISearchDisplayController *)controller didHideSearchResultsTableView:(UITableView *)tableView
{
// undo the changes above to prevent artefacts reported below by mclin
}
i think you'll figure out what to do next