iOS UISearchController crash: Application tried to present modal view controller on itself

Question

According to crashlytics the following crash is occurring (rarely).

Application tried to present modal view controller on itself. Presenting controller is .

I can't replicate this issue at all. This is how I setup my UISearch Controller.

    self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
    self.searchController.dimsBackgroundDuringPresentation = NO;
    self.searchController.searchBar.delegate = self;

    self.tableView.tableHeaderView = self.searchController.searchBar;
    self.definesPresentationContext = YES;

Any help is appreciated because I am all out of ideas. I will post more code if needed.

Answer 1

I had that issue when I updated to iOS 11. My scenario was, that I had a Textfield, and when the user started to edit that, a search-view, essentially a tableview with a searchbar as header popped up and once a tableview cell was tapped it should close.

The problem seems to be that since iOS 11, the OS tries to restore the firstResponder state. Long story short.

It helped when I added active = NO, to my did select method, like so

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
   self.searchController.active = NO; // Add this !
   ...

   [self dismissViewControllerAnimated:YES completion:nil];
}