如何在网格视图中创建标签或文本来覆盖特定条件下的特定单元格？

import UIKit

class GridViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
    // 网格视图
    @IBOutlet weak var collectionView: UICollectionView!
    
    // 数据源
    var data: [[Int]] = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 设置网格视图的数据源和代理
        collectionView.dataSource = self
        collectionView.delegate = self
    }
    
    // 网格视图的数据源方法
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return data.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! GridCell
        
        // 获取当前单元格的数值
        let value = data[indexPath.row / data.count][indexPath.row % data.count]
        
        // 根据特定条件创建标签视图
        if value > 5 {
            let label = UILabel(frame: cell.bounds)
            label.text = "\(value)"
            label.textColor = .red
            label.textAlignment = .center
            cell.addSubview(label)
        }
        
        return cell
    }
}

// 自定义网格单元格
class GridCell: UICollectionViewCell {
    
}