滚动视图不显示图像但滚动？

Question

我正在尝试学习 IOS 开发的基础知识，并且一直在尝试不同的观点。 我试图制作一个滚动视图来显示一组可以正确滚动但没有图像出现的图像？

import UIKit

class ViewController: UIViewController {
    var imagesArray = [UIImage]()

    let scrollView: UIScrollView = {
        let scroll = UIScrollView()
        scroll.isPagingEnabled = true
        scroll.showsVerticalScrollIndicator = false
        scroll.showsHorizontalScrollIndicator = false
        scroll.frame = CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height)
        return scroll
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        setScrollView()
    }

    func setScrollView(){
        self.view.addSubview(scrollView)
        imagesArray = [UIImage(named:"gamerrr"),UIImage(named:"family"),UIImage(named:"gamerrr"),UIImage(named:"family"),UIImage(named:"family")] as! [UIImage]

        setUpImages(imagesArray)
    }

    func setUpImages(_ images:[UIImage]){
        for i in 0..<images.count {
            // container of each image
            let imageView = UIImageView()
            // shifting to next image
            let xPos = UIScreen.main.bounds.width * CGFloat(i)
            // width and height of the screen
            imageView.frame = CGRect(x: xPos, y: 0, width: scrollView.frame.width, height: scrollView.frame.height)
            imageView.contentMode = .scaleAspectFit
             // shifting to next image
            scrollView.contentSize.width = scrollView.frame.width * CGFloat(i+1)
            scrollView.addSubview(imageView)
        }
    }
}

Answer 1

你可能需要设置图片

let imageView = UIImageView(image:images[i])