Question

I have a UITabBarController with three tabs, each is a UIViewController with a UITableView.
I have a logout button and I want to clear out the UITableView in all of these UIViewController, so from one of the UIViewController I did:

NSArray * viewControllers = ((UITabBarController *)self.parentViewController).viewControllers;
AllGroupsViewController * agvc = [viewControllers objectAtIndex:1];
[agvc.groups removeAllObjects];
[agvc.table reloadData];
SearchViewController * svc = [viewControllers objectAtIndex:2];
[svc.results removeAllObjects];
[svc.table reloadData];

However, it seems that the NSArray of viewControllers is empty. Is there another way to reset everything again when you logout?

The problem with my current app is that when I have a user who is logged in and uses the app. The he logs out and a new user logs in, that new user can still see the prior user history in the UITableView.. this is why I want to clear this out when a user logs out, across the three UIViewController in the UITabBarController

Answer 1

Would you check the value of self.parentViewController? I am not sure if it returns the tab bar controller.

Instead of self.parentViewController.viewControllers, do

self.tabBarController.viewControllers