tabBarController(_:shouldSelect:)
Asks the delegate whether the specified view controller should be made active.
Declaration
optional func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> BoolParameters
- tabBarController:
The tab bar controller containing
viewController. - viewController:
The view controller belonging to the tab that was tapped by the user.
Return Value
true if the view controller’s tab should be selected or false if the current tab should remain active.
Discussion
The tab bar controller calls this method in response to the user tapping a tab bar item. You can use this method to dynamically decide whether a given tab should be made the active tab.