In UISplitViewController, can't make showDetailViewController:sender: push onto detail navigationController

Question

In iOS 8, view controllers can now call showDetailViewController:sender: to have the system determine the proper view controller to present the detail view controll

Answer 1

In showDetailViewController:sender: depending on the collapse property you need to create the controller you want to show in the detail.

E.g. On the iPad in landscape mode it would already create the detail view controller from the storyboard but on the iPhone 5 where it is collapsed the view controller does not exist yet.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    UINavigationController *detail;
    ImageViewController *imageVC;

   // on the iPhone (compact) the split view controller is collapsed
   // therefore we need to create the navigation controller and its image view controllerfirst
   if (self.splitViewController.collapsed) {
       detail = [[UINavigationController alloc] init];
       imageVC = [self.storyboard instantiateViewControllerWithIdentifier:@"ImageViewController"];
       [detail setViewControllers:@[imageVC] animated: NO];
   }
   // if the split view controller shows the detail view already there is no need to create the controllers
   else {
       id vc = self.splitViewController.viewControllers[1];
       if ([vc isKindOfClass:[UINavigationController class]]) {
           detail = (UINavigationController *)vc;
           imageVC = [detail.viewControllers firstObject];
       }
    }

    [self prepareImageViewController:imageVC forPhoto:self.photos[indexPath.row]];
    // ask the split view controller to show the detail view
    // the controller knows on iPhone and iPad how to show the detail
    [self.splitViewController showDetailViewController:detail sender:self];
}

I hope this solves your issue.