DidReceiveRemoteNotification Problem

DidReceiveRemoteNotification Problem

 // Set the view to HotTableViewController when user tapped on remote notification
    UIStoryboard *ab = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    HotTableViewController *hotArticle = [ab instantiateViewControllerWithIdentifier:@"hotArticle"];
    UITabBarController *tabController = (UITabBarController *)self.window.rootViewController;
//    tabController.selectedIndex = 0;
    UINavigationController *navigationController = (UINavigationController *)tabController.selectedViewController;
    [navigationController pushViewController:hotArticle animated:YES];