如何在Swift 5中获取安全区域顶部和底部插图

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 获取安全区域的边距值
        let safeAreaInsets = view.safeAreaInsets
        
        // 计算顶部插图的位置和大小
        let topInset = safeAreaInsets.top
        let topImageView = UIImageView(image: UIImage(named: "topImage"))
        topImageView.frame = CGRect(x: 0, y: 0, width: view.bounds.width, height: topInset)
        view.addSubview(topImageView)
        
        // 计算底部插图的位置和大小
        let bottomInset = safeAreaInsets.bottom
        let bottomImageView = UIImageView(image: UIImage(named: "bottomImage"))
        bottomImageView.frame = CGRect(x: 0, y: view.bounds.height - bottomInset, width: view.bounds.width, height: bottomInset)
        view.addSubview(bottomImageView)
    }
}