如何在 Swift 中添加多个集合视图单元格，其中第一个单元格将是常量，其余单元格将取决于数组计数

如何解决如何在 Swift 中添加多个集合视图单元格，其中第一个单元格将是常量，其余单元格将取决于数组计数

我正在尝试创建一个包含集合视图的视图。集合视图有多个单元格。第一个单元格将保持不变。其余的将根据阵列计数显示。我将发布我编写的代码。我的代码中的问题是 - （以及我需要您帮助的地方） 1.单元格正在显示，但它正在获取我在 numberOfItemsInSection 函数下提供的图像计数。因此，阵列中的第一张图像未显示。 2. 如果将数组计数添加到第一个不变的单元格中，我将无法获得正确的单元格计数。

输出图像：My output Image 注意：我添加了一个视图控制器并从代码中注册了单元格

代码：

[MultipleCellCollectionViewController -
import UIKit

class MultipleCellCollectionViewController: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
    
    @IBOutlet weak var multipleCellCollectionView: UICollectionView!
    
    let cellImage: \[UIImage\] = \[#imageLiteral(resourceName: "shirts"),#imageLiteral(resourceName: "hats"),#imageLiteral(resourceName: "hat03"),#imageLiteral(resourceName: "hoodie02")\]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        multipleCellCollectionView.delegate = self
        multipleCellCollectionView.dataSource = self
        multipleCellCollectionView.register(MultipleCellCollectionViewCell.self,forCellWithReuseIdentifier: "cell1")
        multipleCellCollectionView.register(TwoMultipleCollectionViewCell.self,forCellWithReuseIdentifier: "cell2")
    }
    
    func collectionView(_ collectionView: UICollectionView,numberOfItemsInSection section: Int) -> Int {
//        if section == 0{
//        return 1
//        }else {
//            return cellImage.count
//        }
        return cellImage.count
    }
    
    func collectionView(_ collectionView: UICollectionView,cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        if indexPath.item == 0 {
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell1",for: indexPath) as? MultipleCellCollectionViewCell
            cell!.labelLabel.text = "HI THERE"
            return cell!
        }else {
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell2",for: indexPath) as? TwoMultipleCollectionViewCell
            let myImage = cellImage\[indexPath.row\]
            cell!.image.image = myImage
            return cell!
        }
    }
    
    func collectionView(_ collectionView: UICollectionView,layout collectionViewLayout: UICollectionViewLayout,sizeforItemAt indexPath: IndexPath) -> CGSize {
        let width = collectionView.bounds.width
        return CGSize(width: width/2 - 2,height: width/2 - 2)
    }
    
    func collectionView(_ collectionView: UICollectionView,minimumLinespacingForSectionAt section: Int) -> CGFloat {
        return 2
    }
    
    func collectionView(_ collectionView: UICollectionView,minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
        return 2
    }
}


MultipleCellCollectionViewCell-
import UIKit

class MultipleCellCollectionViewCell: UICollectionViewCell {
    
   // @IBOutlet weak var cellView: UIImageView!
    
    public var labelLabel: UILabel = {
        let labelView = UILabel()
        labelView.translatesAutoresizingMaskIntoConstraints = false
        //labelView.text = "Hello"
        labelView.textColor = .black
        labelView.font = UIFont(name: "Georgia",size: 10.0)
        labelView.textAlignment = .center
        return labelView
    }()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        contentView.addSubview(labelLabel)
        
        labelLabel.centerXAnchor.constraint(equalTo: contentView.centerXAnchor,constant: -10).isActive = true
        labelLabel.centerYAnchor.constraint(equalTo: contentView.centerYAnchor,constant: 10).isActive = true
        labelLabel.heightAnchor.constraint(equalTo: self.heightAnchor).isActive = true
        labelLabel.widthAnchor.constraint(equalTo: self.widthAnchor).isActive = true
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
}


TwoMultipleCollectionViewCell-
import UIKit

class TwoMultipleCollectionViewCell: UICollectionViewCell {
    
    public var image: UIImageView = {
           let imageV = UIImageView()
           //imageV.image = UIImage(named: "shirts")
           imageV.frame.size = CGSize(width: imageV.frame.size.width,height: imageV.frame.size.height)
           imageV.contentMode = .scaleAspectFit
           imageV.translatesAutoresizingMaskIntoConstraints = false
           imageV.clipsToBounds = true
           return imageV
       }()
    
    override init(frame: CGRect) {
           super.init(frame: frame)
           contentView.addSubview(image)
          
           image.bottomAnchor.constraint(equalTo: contentView.bottomAnchor,constant: 0).isActive = true
           image.leadingAnchor.constraint(equalTo: contentView.leadingAnchor,constant: 0).isActive = true
           image.trailingAnchor.constraint(equalTo: contentView.trailingAnchor,constant: 0).isActive = true
           image.topAnchor.constraint(equalTo: contentView.topAnchor,constant: 0).isActive = true
       }
       
       required init?(coder aDecoder: NSCoder) {
           super.init(coder: aDecoder)
       }
    
}][1]

解决方法

所以你有 1 个部分，需要 return cellImage.count + 1 为部分中的项目数，然后使用 indexPath.row - 1 在 cfiaip 中查找你的单元格图像 if indexPath.item > 0: {{1} }