Swift - How do I segue from ViewController to TabBarController

1. Control-drag from yellow symbol (ViewController) to the TabBarController

---

This will create a segue in your ViewController menu

---

2. Click this new segue "Show segue to Tab..." and in identity inspector set an identifier name.

---

3. Now when you want to make the segue happen, use call...

performSegueWithIdentifier("WhatEveryYouNamedSegue", self)

This is the way I transfer from the login view controller to my home view controller tab bar.

let homeViewController = self.storyboard?.instantiateViewController(withIdentifier: "HomeVCTabBar") as? UITabBarController

            self.view.window?.rootViewController = homeViewController
            self.view.window?.makeKeyAndVisible()

The most common mistake people make is that they use Instead of UITabBarController the name of the VC they go to.

Make sure you use UITabBarController to entry the first view from your TabBarController.