override func viewDidLoad() {

super.viewDidLoad()

// Do any additional setup after loading the view, typically from a nib.

let stackCardView = UIHostingController(rootView: ContentView())

stackCardView.view.translatesAutoresizingMaskIntoConstraints = false

self.view.addSubview(stackCardView.view)

//set constraints

NSLayoutConstraint.activate([

stackCardView.view.topAnchor.constraint(equalTo: self.view.topAnchor, constant: 50),

stackCardView.view.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),

stackCardView.view.leadingAnchor.constraint(equalTo: self.view.leadingAnchor),

stackCardView.view.trailingAnchor.constraint(equalTo: self.view.trailingAnchor),

])

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

var body: some View {

TabView {

StackCardDemoView()

.tabItem {

Image(systemName: "square.stack.3d.up.fill")

Text("First Tab")

}

StackCardButtonView()

.tabItem {

Image(systemName: "square.stack.3d.up.fill")

Text("Second Tab")

}

}

}