ios - iOS 8 中弃用的 searchDisplayController

Question

如何更正以下内容以免出现警告？我错过了什么？

当将 searchResultsController 更正为 searchController 时，出现错误“找不到对象”

if (tableView == self.searchDisplayController.searchResultsTableView) {
        cell.textLabel.text = [searchResults objectAtIndex:indexPath.row];
    } else {
        cell.textLabel.text = [_content objectAtIndex:indexPath.row];
    }

    return cell;
}

-(BOOL)searchDisplayController:(UISearchDisplayController *)controller
  shouldReloadTableForSearchString:(NSString *)searchString
{
    [self filterContentForSearchText:searchString
                               scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                       objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]];
    return YES;
}

Answer 1

The UISearchController class replaces the UISearchDisplayController class for managing the display of search-related interfaces.

来源:https://developer.apple.com/library/ios/releasenotes/General/WhatsNewIniOS/Articles/iOS8.html

因此，正如 rmaddy 所说，如果您想摆脱弃用的警告，请停止使用弃用的类。使用 UISearchController 代替:

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UISearchController/index.html#//apple_ref/occ/cl/UISearchController