UITableView Custom Class not showing results - swift

Question

I have a ViewController on the storyboard.
TestViewController.swift
class TestViewController: UIViewController {
var users : Dictionary = [String:User]()
let customTableView : UITableView = UITableView()
override func viewDidLoad() {
super.viewDidLoad()
customTableView.register(UITableViewCell.self, forCellReuseIdentifier: "userCell")
let customTable = CustomTable(users:users)
customTableView.delegate = customTable
customTableView.dataSource = customTable
view.addSubview(customTableView)
customTableView.translatesAutoresizingMaskIntoConstraints = false
customTableView.topAnchor.constraint(equalTo: self.view.topAnchor).isActive = true
customTableView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor).isActive = true
customTableView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor).isActive = true
customTableView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor).isActive = true
}
}
CustomTable.swift
class CustomTable: NSObject, UITableViewDelegate, UITableViewDataSource {
var users : Dictionary = [String:User]()
var userNames = ["Steve", "Joe", "Bob"]
var userIds = [String]()
init(users: [String:User]) {
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("HEY")
return userNames.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
print("HIHI")
let cell = tableView.dequeueReusableCell(withIdentifier: "userCell", for: indexPath)
let text = userNames[indexPath.row]
cell.textLabel?.text = text
return cell
}
}
numberOfRowsInSection - seems to fire
cellForRowAt - doesn't fire / print "HIHI", therefore, my table is empty.
I have moved creating the table to viewDidAppear, nothing.
I have searched tirelessly to find similar situations, but nothing seems to solve it. Does anything stick out to anyone or have done this successfully?

Answer 1

Declare customTable reference at class level. It becomes nil as soon as it leaves the scope of viewDidLoad method.