How to make dynamic uitabbar controllers?(swift)

Question

I make an app that has 3 tabs. I want to make my tab bar controller dynamically change the view controller of the first tab bar according to the logged in user type. The rest two tab bars are static. For example, if the user type is 1, I want to show ViewController1 for the first tab, and if the user type is 2, I want to show ViewController2 instead. Is this impossible to achieve when the tab bar is designed in the storyboard? I use storyboard in the app.

Answer 1

You can change these by using the function on a tabview controller setviewcontrollers (see documentation here: https://developer.apple.com/documentation/uikit/uitabbarcontroller/1621177-setviewcontrollers).

For instance I have a storyboard with 4 Viewcontrollers in a tabviewcontroller, and then in the first viewController that loads, I added the following in viewDidLoad()"

let storyboard = UIStoryboard(name: "myStoryboard", bundle: nil)
let newTab = storyboard.instantiateViewController(withIdentifier: "testControllerID") as! TestViewController
let myControllers = [newTab, tabButton2, tabButton3, self, tabButton4]
tabBarController?.setViewControllers(myControllers, animated: true)

So I was able to rearrange my previously defined tabs as well as add "newTab", which is a VC designed on the storyboard, given an identifier, but not actually added to the tabViewController.

Hope that helps