swift - UICollectionView 不显示图像

Question

我试图在 UICollectionView 的帮助下显示一组可水平滚动的图像。我为单元格做了一个自定义 View Controller 文件，但我仍然没有显示任何图像。这是我在 Viewcontroller 中的代码:

class ViewController: UIViewController , UICollectionViewDelegate , UICollectionViewDataSource{

var imageArray = [UIImage(named:"1"),UIImage(named:"2"),UIImage(named:"3"),UIImage(named:"4"),UIImage(named:"5"),UIImage(named:"6"),UIImage(named:"7"),UIImage(named:"8"),]

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
}

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return imageArray.count
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "coffeeImageCollectionViewCell", for: indexPath)   as! coffeeImageCollectionViewCell
    cell.Imgimage.image = imageArray[indexPath.row]

    return cell
  }
}

这是在我的自定义 CollectionViewCell 类中，我将 ImageView 链接到该类:

import UIKit

 class coffeeImageCollectionViewCell: UICollectionViewCell {

@IBOutlet weak var Imgimage: UIImageView!
}

Answer 1

需要在viewDidLoad中设置

self.collectionView.delegate = self
self.collectionView.dataSource = self

创建这个导出

@IBOutlet weak var collectionView: UICollectionView!