UISearchController don't push viewcontroller on front but below UISearchController - ios

Question

The behaviour different between automatic presentation UISearchController and present the search controller myself.
#implementation MyViewComtroller
// click search barbutton on right of navigationBar
- (void)searchAction:(id)sender {
ArticleSearchViewController *searchResultsController = [[ArticleSearchViewController alloc] init];
UISearchController *searchController = [[UISearchController alloc] initWithSearchResultsController:searchResultsController];
searchController.searchResultsUpdater = searchResultsController;
searchController.searchBar.delegate = searchResultsController;
searchController.delegate = searchResultsController;
searchController.hidesNavigationBarDuringPresentation = NO;
[self presentViewController:searchController animated:YES completion:nil];
}
#end
#implementation ArticleSearchViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
ArticleDetailController * articleDetailController = [ArticleDetailController new];
[(UINavigationController *)self.presentingViewController pushViewController:articleDetailController animated:YES];
}
#end
The push action happend below UISearchController.

Answer 1

You are presenting the search controller in wrong way. Look at part of the documentation.
You use a search controller in tandem with your existing view
controllers. When you have a view controller with searchable content,
incorporate the search bar of a UISearchController object into your
view controller’s interface. When the user interacts with that search
bar, the search controller automatically displays a new view
controller with the search results that you specify.
Instead of this in your main controller:
[self presentViewController:searchController animated:YES completion:nil];
You should do this on iOS 11:
self.definesPresentationContext = YES;
self.navigationItem.searchController = searchController;
Or this on pre iOS 11:
self.definesPresentationContext = YES;
self.navigationItem.titleView = searchController.searchBar;
Or place anywhere else the searchController.searchBar in your presented view hierarchy.
You should also setup the search controller in a place like viewDidLoad and not on a button press.
And the way you are getting a reference to your navigationController in ArticleSearchViewController has to be updated to something like:
[self.presentingViewController.navigationController pushViewController:articleDetailController animated:YES];
View controller with searchable content:
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.view setBackgroundColor:[UIColor blackColor]];
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
ArticleSearchViewController *searchResultsController = [sb instantiateViewControllerWithIdentifier:#"ArticleSearchViewController"];
UISearchController *searchController = [[UISearchController alloc] initWithSearchResultsController:searchResultsController];
searchController.searchResultsUpdater = searchResultsController;
searchController.searchBar.delegate = searchResultsController;
searchController.delegate = searchResultsController;
searchController.hidesNavigationBarDuringPresentation = NO;
// [self presentViewController:searchController animated:YES completion:nil]; //WRONG
self.definesPresentationContext = YES;
self.navigationItem.searchController = searchController;
}
#end
Results Controller:
#implementation ArticleSearchViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
UIViewController * articleDetailController = [UIViewController new];
[self.presentingViewController.navigationController pushViewController:articleDetailController animated:YES];
}
- (void)updateSearchResultsForSearchController:(UISearchController *)searchController {
// update appropriately
}
#end

Answer 2

This is a better answer:
definesPresentationContext = true
just write this in your MyViewController