Present view from app delegate with a tabbar Controller-> Nav controller -> View Hierarchy - iOS Swift

Question

I have searched throughout SO and have found similar articles, but none of the solutions worked for me. Below is a screenshot of my view hierarchy

One of the many snippets of code I have tried is as follows:

            var storyBoard = UIStoryboard()
            if UIDevice.current.userInterfaceIdiom == .pad {
                storyBoard = UIStoryboard(name: "iPad", bundle: nil)
            } else {
                storyBoard = UIStoryboard(name: "Main", bundle: nil)
            }


            let tabVc = self.window?.rootViewController as! UITabBarController


            let mynVC = storyBoard.instantiateViewController(withIdentifier: "nav") as! UINavigationController


            let calcVc = storyBoard.instantiateViewController(withIdentifier: "destVc")


            tabVc.present(mynVC, animated: true, completion: { () -> Void in
              // Segue , do stuff

            })

The above code presents the correct tab with a nav bar, but there is no tabor present.

I would like to have a force touch button that presents the tab with the navigation bar AND the tabbar present, does anyone know how to do that?

Answer 1

I'm not able to fully test this at the moment, but I believe that in a tab bar, you dont present the view controller. you set its view controller items and selectedViewController properties.

This should work, I'll test it and update shortly,

var storyBoard = UIStoryboard()
        if UIDevice.current.userInterfaceIdiom == .pad {
            storyBoard = UIStoryboard(name: "iPad", bundle: nil)
        } else {
            storyBoard = UIStoryboard(name: "Main", bundle: nil)
        }


        let tabVc = self.window?.rootViewController as! UITabBarController

        let mynVC = storyBoard.instantiateViewController(withIdentifier: "nav") as! UINavigationController

        let calcVc = storyBoard.instantiateViewController(withIdentifier: "destVc")

        tabVc.viewControllers = [mynVC]
        tabVc.selectedViewController = mynVC

Depending on what else you have below, you may also need to call window.setKeyAndVisible() to actually show