如何在横向中显示一个UIView？

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let myView = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 100))
        myView.backgroundColor = .red
        
        view.addSubview(myView)
        
        myView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            myView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            myView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            myView.centerYAnchor.constraint(equalTo: view.centerYAnchor),
            myView.heightAnchor.constraint(equalToConstant: 100)
        ])
    }

}