如何在UIView内容增长的同时为其阴影边框添加动画效果

import UIKit

// 创建一个UIView对象
let myView = UIView(frame: CGRect(x: 50, y: 50, width: 100, height: 100))
myView.backgroundColor = UIColor.white

// 添加阴影效果
myView.layer.shadowColor = UIColor.black.cgColor
myView.layer.shadowOffset = CGSize(width: 0, height: 2)
myView.layer.shadowOpacity = 0.5
myView.layer.shadowRadius = 4

// 添加到父视图中
let parentView = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
parentView.addSubview(myView)

// 动画闭包
UIView.animate(withDuration: 1.0, animations: {
    // 更新UIView的大小和位置
    myView.frame = CGRect(x: 50, y: 50, width: 200, height: 200)
    
    // 更新UIView的阴影效果
    let shadowRect = CGRect(x: 0, y: 0, width: myView.bounds.width, height: myView.bounds.height)
    myView.layer.shadowPath = UIBezierPath(rect: shadowRect).cgPath
})

// 将父视图添加到主视图中
let mainView = UIView(frame: CGRect(x: 0, y: 0, width: 300, height: 300))
mainView.addSubview(parentView)