UISearchControllerカスタマイズメモ

- (void)presentSearchController:(UISearchController *)searchController {
    searchController.searchResultsController.view.hidden = NO;
    [self updateSearchResultsForSearchController:searchController];
}

- (void)willPresentSearchController:(UISearchController *)searchController {
    dispatch_async(dispatch_get_main_queue(), ^{
        searchController.searchResultsController.view.hidden = NO;
    });
}

- (void)didPresentSearchController:(UISearchController *)searchController {
    // do something after the search controller is presented
}

- (void)willDismissSearchController:(UISearchController *)searchController {
    // do something before the search controller is dismissed
}

- (void)didDismissSearchController:(UISearchController *)searchController {
    // do something after the search controller is dismissed
}