如何在swift iOS中创建集合视图中的多行标签？

let layout = UICollectionViewFlowLayout()
let collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height), collectionViewLayout: layout)

extension ViewController: UICollectionViewDataSource {
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1 // 只有一个section
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return labels.count // labels是一个包含多行标签内容的数组
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "LabelCell", for: indexPath) as! LabelCell
        cell.label.text = labels[indexPath.item] // labels是一个包含多行标签内容的数组
        return cell
    }
}

class LabelCell: UICollectionViewCell {
    let label = UILabel()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        // 设置label的属性和布局
        label.numberOfLines = 0 // 设置为多行显示
        label.textAlignment = .center
        label.translatesAutoresizingMaskIntoConstraints = false
        contentView.addSubview(label)
        
        NSLayoutConstraint.activate([
            label.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
            label.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
            label.topAnchor.constraint(equalTo: contentView.topAnchor),
            label.bottomAnchor.constraint(equalTo: contentView.bottomAnchor)
        ])
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

collectionView.dataSource = self
collectionView.register(LabelCell.self, forCellWithReuseIdentifier: "LabelCell")

view.addSubview(collectionView)