tableView never shows up - ios

Question

I have been at this for some time now. I can not get my tableView to appear. I think it has something to do with the fact that it is being presented as didMove(toParent)
I am trying to create a page that allows you to add a new Card to the profile. Every time I write it programmatically or use storyboard it crashes as it Unexpectedly found nil while implicitly unwrapping an Optional value.
Here is the view Controller that is presenting the Side Menu
import Foundation
import SideMenu
import FirebaseAuth
import UIKit
import CoreLocation
import SwiftUI
class BeginViewController: UIViewController, MenuControllerDelegate, CLLocationManagerDelegate {
private var sideMenu: SideMenuNavigationController?
struct customData {
var title: String
var image: UIImage
}
let data = [
customData(title: "NottingHill", image: #imageLiteral(resourceName: "norali-nayla-SAhImiWmFaw-unsplash")),
customData(title: "Southall", image: #imageLiteral(resourceName: "alistair-macrobert-8wMflrTLm2g-unsplash")),
customData(title: "Tower Hill", image: #imageLiteral(resourceName: "peregrine-communications-0OLnnZWg860-unsplash")),
customData(title: "Mansion House", image: #imageLiteral(resourceName: "adam-birkett-cndNklOnHO4-unsplash")),
customData(title: "Westminster", image: #imageLiteral(resourceName: "simon-mumenthaler-NykjYbCW6Z0-unsplash")),
customData(title: "London Bridge", image: #imageLiteral(resourceName: "hert-niks-CjouXgWrTRk-unsplash"))
]
struct Constants {
static let cornerRadius: CGFloat = 15.0 }
let manager = CLLocationManager()
private let ProfileController = ProfileViewController()
private let MyBookingsController = MyBookingsViewController()
private let WalletController = WalletViewController()
private let FAQController = FAQViewController()
private let SettingsController = SettingsViewController()
#IBOutlet weak var StoreButton: UIButton!
#IBOutlet weak var DeliverButton: UIButton!
#IBOutlet weak var AirportButton: UIButton!
#IBOutlet weak var HotelsButton: UIButton!
fileprivate let collectionView: UICollectionView = {
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .horizontal
let cv = UICollectionView(frame: .zero, collectionViewLayout: layout)
cv.translatesAutoresizingMaskIntoConstraints = false
cv.register(customCell.self, forCellWithReuseIdentifier: "cell")
return cv
}()
override func viewDidLoad() {
super.viewDidLoad()
// buttons
StoreButton.layer.cornerRadius = Constants.cornerRadius
StoreButton.layer.shadowOffset = .zero
StoreButton.layer.shadowOpacity = 0.3
StoreButton.layer.shadowColor = UIColor.black.cgColor
StoreButton.layer.shadowRadius = 5
DeliverButton.layer.cornerRadius = Constants.cornerRadius
DeliverButton.layer.shadowOffset = .zero
DeliverButton.layer.shadowOpacity = 0.3
DeliverButton.layer.shadowColor = UIColor.black.cgColor
DeliverButton.layer.shadowRadius = 5
AirportButton.layer.cornerRadius = Constants.cornerRadius
AirportButton.layer.shadowOffset = .zero
AirportButton.layer.shadowOpacity = 0.3
AirportButton.layer.shadowColor = UIColor.black.cgColor
AirportButton.layer.shadowRadius = 5
HotelsButton.layer.cornerRadius = Constants.cornerRadius
HotelsButton.layer.shadowOffset = .zero
HotelsButton.layer.shadowOpacity = 0.3
HotelsButton.layer.shadowColor = UIColor.black.cgColor
HotelsButton.layer.shadowRadius = 5
//CollectionViewNearbyPlaces
view.addSubview(collectionView)
collectionView.backgroundColor = .clear
collectionView.topAnchor.constraint(equalTo: view.topAnchor, constant: 450).isActive = true
collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 25).isActive = true
collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: 0).isActive = true
collectionView.heightAnchor.constraint(equalTo: collectionView.widthAnchor, multiplier: 0.5).isActive = true
collectionView.delegate = self
collectionView.dataSource = self
// title
title = "handl"
//background
let menu = MenuController(with: [ "Home", "Profile", "My Bookings",
"Wallet",
"FAQ","Settings"])
menu.delegate = self
sideMenu = SideMenuNavigationController(rootViewController: menu)
sideMenu?.leftSide = true
sideMenu?.setNavigationBarHidden(true, animated: false)
SideMenuManager.default.leftMenuNavigationController = sideMenu
SideMenuManager.default.addPanGestureToPresent(toView: view)
addChildControllers()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
manager.desiredAccuracy = kCLLocationAccuracyBest
manager.delegate = self
manager.requestWhenInUseAuthorization()
manager.startUpdatingLocation()
handleNotAuthenticated()
}
private func addChildControllers() {
addChild(ProfileController)
addChild(MyBookingsController)
addChild(WalletController)
addChild(FAQController)
addChild(SettingsController)
view.addSubview(ProfileController.view)
view.addSubview(MyBookingsController.view)
view.addSubview(WalletController.view)
view.addSubview(FAQController.view)
view.addSubview(SettingsController.view)
ProfileController.view.frame = view.bounds
MyBookingsController.view.frame = view.bounds
WalletController.view.frame = view.bounds
FAQController.view.frame = view.bounds
SettingsController.view.frame = view.bounds
ProfileController.didMove(toParent: self)
MyBookingsController.didMove(toParent: self)
WalletController.didMove(toParent: self)
FAQController.didMove(toParent: self)
SettingsController.didMove(toParent: self)
ProfileController.view.isHidden = true
MyBookingsController.view.isHidden = true
WalletController.view.isHidden = true
FAQController.view.isHidden = true
SettingsController.view.isHidden = true
}
#IBAction func SideMenuButton(_ sender: Any) {
present(sideMenu!, animated: true)
}
func didSelectMenuItem(named: String) {
sideMenu?.dismiss(animated: true, completion: { [weak self] in
self?.title = named
if named == "Home" {
self?.ProfileController.view.isHidden = true
self?.MyBookingsController.view.isHidden = true
self?.WalletController.view.isHidden = true
self?.FAQController.view.isHidden = true
self?.SettingsController.view.isHidden = true
}
if named == "Profile" {
self?.ProfileController.view.isHidden = false
self?.MyBookingsController.view.isHidden = true
self?.WalletController.view.isHidden = true
self?.FAQController.view.isHidden = true
self?.SettingsController.view.isHidden = true
}
if named == "My Bookings" {
self?.ProfileController.view.isHidden = true
self?.MyBookingsController.view.isHidden = false
self?.WalletController.view.isHidden = true
self?.FAQController.view.isHidden = true
self?.SettingsController.view.isHidden = true
}
else if named == "Wallet" {
self?.ProfileController.view.isHidden = true
self?.MyBookingsController.view.isHidden = true
self?.WalletController.view.isHidden = false
self?.FAQController.view.isHidden = true
self?.SettingsController.view.isHidden = true
}
else if named == "FAQ" {
self?.ProfileController.view.isHidden = true
self?.MyBookingsController.view.isHidden = true
self?.WalletController.view.isHidden = true
self?.FAQController.view.isHidden = false
self?.SettingsController.view.isHidden = true
}
else if named == "Settings" {
self?.ProfileController.view.isHidden = true
self?.MyBookingsController.view.isHidden = true
self?.WalletController.view.isHidden = true
self?.FAQController.view.isHidden = true
self?.SettingsController.view.isHidden = false
}
})
}
}
extension BeginViewController: UICollectionViewDelegateFlowLayout, UICollectionViewDataSource {
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: collectionView.frame.width/2.5, height: collectionView.frame.width/2)
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return data.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! customCell
cell.data = self.data[indexPath.row]
return cell
}
class customCell: UICollectionViewCell {
var data: customData? {
didSet {
guard let data = data else { return }
bg.image = data.image
}
}
fileprivate let bg: UIImageView = {
let iv = UIImageView()
iv.image = #imageLiteral(resourceName: "adam-birkett-cndNklOnHO4-unsplash")
iv.translatesAutoresizingMaskIntoConstraints = false
iv.contentMode = .scaleAspectFill
iv.layer.shadowColor = UIColor.black.cgColor
iv.layer.shadowOpacity = 1
iv.layer.shadowOffset = CGSize.zero
iv.layer.shadowRadius = 10
iv.layer.shadowPath = UIBezierPath(rect: iv.bounds).cgPath
iv.layer.shouldRasterize = false
iv.layer.cornerRadius = 10
iv.clipsToBounds = true
return iv
}()
override init(frame: CGRect) {
super.init(frame: frame)
contentView.addSubview(bg)
bg.topAnchor.constraint(equalTo: contentView.topAnchor).isActive = true
bg.leadingAnchor.constraint(equalTo: contentView.leadingAnchor).isActive = true
bg.trailingAnchor.constraint(equalTo: contentView.trailingAnchor).isActive = true
bg.bottomAnchor.constraint(equalTo: contentView.bottomAnchor).isActive = true
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
//if user is not logged in show login
private func handleNotAuthenticated() {
//check auth status
if Auth.auth().currentUser == nil {
//show log in screen
let loginVC = LoginViewController()
loginVC.modalPresentationStyle = .fullScreen
present(loginVC, animated: false)
}
}
}
and Here is the viewController I am trying to present a tableView on. It comes up with a white screen, but no tableView. Nor are my navigation items showing. Even when written programmatically.
import UIKit
class WalletViewController: UIViewController {
var addNewCard = [String]()
let button = UIButton()
let tableView = UITableView()
// MARK: - Properties
override func viewDidLoad() {
super.viewDidLoad()
addTable()
view.backgroundColor = UIColor(named: "RED")
button.setTitle("Add New Card", for: .normal)
view.addSubview(button)
button.backgroundColor = UIColor(named: "yellow-2")
button.setTitleColor(UIColor(named: "RED"), for: .normal)
button.frame = CGRect(x: 25, y: 700, width: 350, height: 50)
button.layer.cornerRadius = 15
button.addTarget(self, action: #selector(didTapAddButton), for: .touchUpInside)
if !UserDefaults().bool(forKey: "setup") {
UserDefaults().set(true, forKey: "setup")
UserDefaults().set(0, forKey: "count")
navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Add New Card", style: .plain, target: self,
action: #selector(didTapAdd))
}
}
func updateCard() {
guard let count = UserDefaults().value(forKey: "count") as? Int else {
return
}
for x in 0..<count {
if let addCard = UserDefaults().value(forKey: "addCard\(x+1)") as? String {
addNewCard.append(addCard)
}
}
}
func addTable() {
tableView.frame = view.bounds
tableView.delegate = self
tableView.dataSource = self
tableView.separatorStyle = .singleLine
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "addCard")
self.view.addSubview(tableView)
}
#IBAction func didTapAdd() {
let vc = storyboard?.instantiateViewController(withIdentifier: "addCard") as! addCardViewController
vc.update = {
DispatchQueue.main.async {
self.updateCard()
}
}
navigationController?.pushViewController(vc, animated: true)
}
#objc private func didTapAddButton() {
let rootVC = addCardViewController()
let navVC = UINavigationController(rootViewController: rootVC)
navVC.modalPresentationStyle = .fullScreen
present(navVC, animated: true)
}
}
extension WalletViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
}
}
extension WalletViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let add = tableView.dequeueReusableCell(withIdentifier: "addCard", for: indexPath)
add.textLabel?.text = addNewCard[indexPath.row]
return add
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return addNewCard.count
}
}