搜索显示控制器是否可以在搜索文本字段为空时隐藏取消按钮？

Question

I have search display controller and I want the cancel button to be always visible , I set the option of " shows the cancel button " from the interface builder " xib file" and I handled the delegate of

- (void)searchDisplayControllerDidBeginSearch:(UISearchDisplayController *)controller 
{
    controller.searchBar.showsCancelButton = YES;
}

to make the cancel button always shown , it works correct if the search text input has text , but if I did not enter any text in the search bar and click on the faded view the search textfield stop editing this is correct behavior but it hides the cancel button so how i can make the cancel button always shown ?

Answer 1

    self.searchDisplayController.delegate=self;
self.searchDisplayController.searchResultsDelegate=self;
self.searchDisplayController.searchBar.delegate=self;

and in begin search

- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller 
{
    [self.searchDisplayController.searchBar setShowsCancelButton:YES animated:NO];
}