Swift Storyboard -使图标和多行文字水平居中

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let iconImageView = UIImageView(image: UIImage(named: "icon"))
        iconImageView.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(iconImageView)
        
        let textLabel = UILabel()
        textLabel.text = "This is a multi-line text label."
        textLabel.numberOfLines = 0
        textLabel.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(textLabel)
        
        NSLayoutConstraint.activate([
            iconImageView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            iconImageView.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: -50),
            
            textLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            textLabel.topAnchor.constraint(equalTo: iconImageView.bottomAnchor, constant: 20),
            textLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20),
            textLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -20)
        ])
    }
}