Add/Remove or Show/Hide tab bar items from UITabbarController when using storyboards

Question

I have an application that needs to show different content from a UITabBarController based on if the user is registered or not. Is there a way to add and remove ViewControllers from a UITabBarController at run-time? Show and Hide would be fine too.

Prior to storyboards you could call setViewController but that does not seem to be the right way when using stoaryboards.

Answer 1

You can remove a tabbar item as follows:

NSMutableArray *tabbarViewControllers = [NSMutableArray arrayWithArray: [self.tabBarController viewControllers]];
[tabbarViewControllers removeObjectAtIndex: /*Any index*/];
[self.tabBarController setViewControllers: tabbarViewControllers ];

Answer 2

Swift 4+

func removeTab(at index: Int) {
        guard var viewControllers = self.tabBarController?.viewControllers else { return }
        viewControllers.remove(at: index)
        self.tabBarController?.viewControllers = viewControllers
    }