Not able to create an instance of class , crashing the app - ios

Question

SOLUTION FOUND - credit Sanzio Angeli, used lazy var
Trying the access the pageIndex in order to update the page indicator , i try and create an instance of a class which has the public property of pageIndex, but the moment i try and do so its crashing the app, can any on one please suggest where i am doing wrong, Strange enough if i do not declare the instance globally but inside a method, the app does not crash
Error i get - Thread 1: EXC_BAD_ACCESS (code=2, address=0x7ffeeebccea8)
Below is class whose instance i am trying to create and after that the class where i am trying to call it by creating a global instance at top, i am trying to use it in func moveToNext()
import UIKit
class ContentViewController: UIViewController {
let contentDesign = ContentView()
var pageIndex = 0
var pageHeading = ""
var pageContent = ""
var pageImage = ""
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(contentDesign)
contentDesign.pagerContent.text = pageContent
contentDesign.pagerHeader.text = pageHeading
contentDesign.pagerImage.image = UIImage(named: pageImage)
// Do any additional setup after loading the view.
}
}
//////---------
class MasterView: UIViewController {
var container = UIView()
var lowerCotainer = UIView()
var pageNumbering: UIPageControl = UIPageControl()
var nextButton = UIButton()
var skipButton = UIButton()
var pageController = PageViewController()
**var content = ContentViewController()**
override func viewDidLoad() {
super.viewDidLoad()
commonInit()
}
func commonInit()
{
container.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(container)
container.widthAnchor.constraint(equalToConstant: UIScreen.main.bounds.width).isActive = true
container.heightAnchor.constraint(equalToConstant: UIScreen.main.bounds.height * 0.6).isActive = true
}
#objc func moveToNext() {
// let index = pageController.currentIndex
let index = content.pageIndex
pageNumbering.currentPage = index + 1
print(index)
switch index {
case 0...1:
pageController.forwardPage()
case 2:
self.view.window?.rootViewController?.dismiss(animated: true, completion: nil)
default:
break
}
}
}
Where the app crashes is strange here in another class at var pagerHeader = UILabel()
import UIKit
class ContentView: UIView {
var pagerImage = UIImageView()
var pagerHeader = UILabel()
var pagerContent = UILabel()
let master = MasterView()
override init(frame: CGRect) {
super.init(frame: frame)
commonInit()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func commonInit()
{
pagerImage.translatesAutoresizingMaskIntoConstraints = false
addSubview(pagerImage)
}
}

Answer 1

After working with multiverse:
lazy var content = ContentViewController()
Instead of:
var content = ContentViewController()
Has fixed the issue