//
//  MyViewController.swift
//

import UIKit

class MyViewController: UIViewController {
    private let square: UIView = {
        let view = UIView()
        view.backgroundColor = .white
        view.translatesAutoresizingMaskIntoConstraints = false
        return view
    }()

    override func viewDidLoad() {
        super.viewDidLoad()

        view.backgroundColor = .systemGray
        
        view.addSubview(square)
        
        NSLayoutConstraint.activate([
            square.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
            square.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
            square.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
            square.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor)
        ])
    }
}