如何在Xcode项目中实现滚动视图的无限滚动？

import UIKit

class ViewController: UIViewController, UIScrollViewDelegate {
    @IBOutlet weak var scrollView: UIScrollView!
    var images: [UIImage] = [UIImage(named: "image1")!, UIImage(named: "image2")!, UIImage(named: "image3")!]
    var imageViews: [UIImageView] = []
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        scrollView.delegate = self
        scrollView.isPagingEnabled = true
        
        // 添加图片视图到滚动视图中
        for i in 0..<images.count {
            let imageView = UIImageView(image: images[i])
            imageView.contentMode = .scaleAspectFit
            imageView.frame = CGRect(x: CGFloat(i) * scrollView.frame.size.width, y: 0, width: scrollView.frame.size.width, height: scrollView.frame.size.height)
            scrollView.addSubview(imageView)
            imageViews.append(imageView)
        }
        
        // 设置滚动视图的contentSize
        scrollView.contentSize = CGSize(width: scrollView.frame.size.width * CGFloat(images.count), height: scrollView.frame.size.height)
        
        // 初始化滚动视图的偏移量为第二张图片的位置
        scrollView.contentOffset = CGPoint(x: scrollView.frame.size.width, y: 0)
    }
    
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let contentOffsetX = scrollView.contentOffset.x
        let scrollViewWidth = scrollView.frame.size.width
        
        // 判断是否滚动到第一张图片的位置
        if contentOffsetX <= 0 {
            scrollView.contentOffset = CGPoint(x: scrollViewWidth * CGFloat(images.count - 2), y: 0)
        }
        
        // 判断是否滚动到最后一张图片的位置
        if contentOffsetX >= scrollViewWidth * CGFloat(images.count - 1) {
            scrollView.contentOffset = CGPoint(x: scrollViewWidth, y: 0)
        }
    }
}