Detect when a tab bar item is pressed

Question

I have a root view controller which isn’t set as the custom class for any of my view controllers on my storyboard. Instead, all of my view controllers are subclassing this c

Answer 1

Swift 5 Easy way Enjoy

//MARK:- it will work in 
class TabBar: UITabBarController, UITabBarControllerDelegate {

}

Code

override func viewDidLoad() {
    super.viewDidLoad()

    self.selectedIndex = 1
    self.title = "Measure"

    self.delegate = self        
}

//MARK:-  UITabBarDelegate
override func tabBar(tabBar: UITabBar, didSelectItem item: UITabBarItem) {
    print("Selected item")
}

//MARK:- UITabBarControllerDelegate
func tabBarController(_ tabBarController: UITabBarController, didSelect viewController: UIViewController) {
    let selectedIndex = tabBarController.viewControllers?.firstIndex(of: viewController)!
    if selectedIndex == 0 {
        self.title = "History"
    }
    else if selectedIndex == 1{
        self.title = "Measure"
    }
    else if selectedIndex == 2 {
        self.title = "Setting"
    } else {
        //do whatever
    }
}