UITableView delegate methods not being called. Created from another class - ios

Question

I'm trying to add UITableView from another class but the delegate methods are not being called. Only the numberOfRowsInSection method is being called. I know I can do this in the main ViewController, but I would like to do it from another class. Is it possible? This code is fully functional, just copy and paste into a project. Thank you!
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let t = Table()
t.create()
}
}
class Table: UIViewController, UITableViewDelegate, UITableViewDataSource {
private let myArray: NSArray = ["First","Second","Third"]
func create() {
let barHeight = UIApplication.shared.statusBarFrame.size.height
let displayWidth = UIScreen.main.bounds.width
let displayHeight = UIScreen.main.bounds.height
let myTableView = UITableView(frame: CGRect(x: 0, y: barHeight, width: displayWidth, height: displayHeight - barHeight))
myTableView.register(UITableViewCell.self, forCellReuseIdentifier: "MyCell")
UIApplication.shared.delegate?.window??.rootViewController?.view.addSubview(myTableView)
myTableView.dataSource = self
myTableView.delegate = self
myTableView.backgroundColor = UIColor.red
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Num: \(indexPath.row)")
print("Value: \(myArray[indexPath.row])")
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("numberOfRowsInSection")
return myArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
print("cellForRowAt")
let cell = tableView.dequeueReusableCell(withIdentifier: "MyCell", for: indexPath as IndexPath)
cell.textLabel!.text = "\(myArray[indexPath.row])"
return cell
}
}

Answer 1

When you run this:
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let t = Table()
t.create()
}
}
You have created a local variable t. As soon as you leave the viewDidLoad() function, t no longer exists - so there are no delegate methods to call.
Instead, create a class-level variable that will stick around:
class ViewController: UIViewController {
let t = Table()
override func viewDidLoad() {
super.viewDidLoad()
t.create()
}
}

Answer 2

I think it is not called due to it Tablview not added to self.view or else. so you need to add this line after setting of tableview.
func create() {
let barHeight = UIApplication.shared.statusBarFrame.size.height
let displayWidth = UIScreen.main.bounds.width
let displayHeight = UIScreen.main.bounds.height
let myTableView = UITableView(frame: CGRect(x: 0, y: barHeight, width: displayWidth, height: displayHeight - barHeight))
myTableView.register(UITableViewCell.self, forCellReuseIdentifier: "MyCell")
UIApplication.shared.delegate?.window??.rootViewController?.view.addSubview(myTableView)
myTableView.dataSource = self
myTableView.delegate = self
myTableView.backgroundColor = UIColor.red
self.view.addSubview(myTableView) //add this line
}