how can I manage controllers in Container View with using tab bar

Question

On my storyboard I have main ViewController, not TabBarViewController, which consist of TabBar on the bottom, view on the top and ContainerView

Answer 1

You can try to use this extesion to add/remove any of the 4 to containerView

extension UIViewController {
    func add(_ child: UIViewController, frame: CGRect? = nil) {
        addChildViewController(child)
        if let frame = frame {
            child.view.frame = frame
        }
        view.addSubview(child.view)
        child.didMove(toParentViewController: self)
    }
    func remove() {
        willMove(toParentViewController: nil)
        view.removeFromSuperview()
        removeFromParentViewController()

   }

}

// use it like this

let vc = self.storyboard?.instantiateViewController(withIdentifier: "first")

self.add(vc, frame: self.containerView.frame)

to remove

vc.remove()