How to disable UITabBarController

Question

I have a Tab that extends the UITabBarController and three tabs. How can disable a tab from opening by condition?

class Tab: UITabBarController {

override func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) {

        if(item.tag == 1) // dont open tab  ????
    }

}

Answer 1

You can do

class Tab: UITabBarController , UITabBarControllerDelegate{

    override func viewDidLoad() {
       super.viewDidLoad()
       self.delegate = self
    }
    func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> Bool {
        return true / false // according to vc type 
     }
}