Swift 根据图像高度获取集合视图自定义布局中单元格的高度

我从集合视图中的url加载一个图像，使用以下自定义布局，并使用翠鸟将图像加载到集合视图单元格中，如下所示

func collectionView(_ collectionView: UICollectionView,
                    cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "DbatCollectionViewCell",
                                                  for: indexPath) as! DbatCollectionViewCell

    cell.layer.cornerRadius = 5
    let debate = debatesArray[indexPath.row] as! NSDictionary
    let debateDetails = debate.value(forKey: "debate") as! Debate
    cell.dbatName?.text = debateDetails.title
    if let debateImageUrl = URL(string: debateDetails.image!) {
        cell.dbatImage.kf.setImage(with: debateImageUrl as Resource)
    }

    return cell
  }

在该教程中，单元格的高度由图像高度提供，但我想根据图像的比例给出图像大小，无论是纵向图像还是横向图像。为此，我必须找到图像的高度

extension FavouriteCollectionViewController : DbatterLayoutDelegate {

// 1. Returns the photo height
func collectionView(_ collectionView: UICollectionView, heightForPhotoAtIndexPath indexPath:IndexPath) -> CGFloat {

    let heights = [125,150, 175,200,225,250]
    let number = heights[Int(arc4random_uniform(UInt32(heights.count)))]

    return CGFloat(number)
}
}

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请告知如何做到这一点

为了实现这一点，我在上传图像时上传了图像大小，包括高度和宽度，并计算了图像高度，如下所示

func collectionView(_ collectionView: UICollectionView, heightForPhotoAtIndexPath indexPath:IndexPath) -> CGFloat {

    let debate = debatesArray[indexPath.row] as! NSDictionary
    let debateDetails = debate.value(forKey: "debate") as! Debate

    if debateDetails.image_size != nil {
        let imageDictionary = debateDetails.image_size

        let width = CGFloat((imageDictionary?.value(forKey: "width") as! NSString).floatValue)
        let height = CGFloat((imageDictionary?.value(forKey: "height") as! NSString).floatValue)

        let cellWidth = collectionView.contentSize.width / 2
        let imageheight = cellWidth * height / width

        return imageheight
    }

    return 200
}

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你能解决它吗？@Anushk是的，我已经解决了。见下面我的答案