Open ViewController on button - ios

Question

I have three viewcontrollers that all have buttons switch to a fourth viewcontroller. On this fourth viewcontroller, I have a back button, which I want to take me back to the viewcontroller that I was originally at.
I can't just use the control drag since that only let's you go to a single controller. How can I programmatically have it send the user to the most recent viewcontroller?
import UIKit
class ViewController: UIViewController {
let tabBar = UITabBarController()
var selectedIndex: Int = 0
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
tab()
}
#IBAction func goto(_ sender: Any) {
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "FrekansViewController") as! FrekansViewController
self.present(nextViewController, animated:true, completion:nil)
}
func tab() {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let homeVC = UIViewController()
var streamVC = UIViewController()
var liveVC = UIViewController()
var searchVC = UIViewController()
streamVC = storyboard.instantiateViewController(withIdentifier: "StreamViewController")
liveVC = storyboard.instantiateViewController(withIdentifier: "LiveViewController")
searchVC = storyboard.instantiateViewController(withIdentifier: "SearchViewController")
tabBar.viewControllers = [homeVC,streamVC, liveVC, searchVC]
let itemHome = UITabBarItem(title: "Home", image: UIImage.init(systemName: "house.fill") , tag:0)
let itemStream = UITabBarItem(title: "List", image: UIImage.init(systemName: "waveform.path") , tag:1)
let itemLive = UITabBarItem(title: "Radio", image: UIImage.init(systemName: "play.fill") , tag:2)
let itemSearch = UITabBarItem(title: "Search", image: UIImage.init(systemName: "magnifyingglass"), tag: 3)
homeVC.tabBarItem = itemHome
streamVC.tabBarItem = itemStream
liveVC.tabBarItem = itemLive
searchVC.tabBarItem = itemSearch
self.view.addSubview(tabBar.view)
}
}

Answer 1

Try to embed the controllers inside NavigationController then you can use :
navigationController?.popViewController(animated: true)
This would do the desired functionality for you.