向TableViewCell添加自定义UIView

// 自定义UIView子类 CustomView.swift
import UIKit

class CustomView: UIView {
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupView()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupView()
    }
    
    private func setupView() {
        // 添加子视图、设置样式等
        let label = UILabel(frame: bounds)
        label.text = "Custom View"
        label.textAlignment = .center
        addSubview(label)
        
        backgroundColor = .lightGray
        layer.cornerRadius = 8.0
    }
}

// 在数据源方法中添加自定义视图
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
    
    // 创建自定义视图对象
    let customView = CustomView(frame: CGRect(x: 0, y: 0, width: 100, height: 50))
    
    // 将自定义视图添加到单元格的内容视图中
    cell.contentView.addSubview(customView)
    
    return cell
}

// 在代理方法中设置自定义视图的尺寸和位置
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
    // 调整自定义视图的布局
    cell.contentView.subviews.forEach { subview in
        if let customView = subview as? CustomView {
            customView.frame = CGRect(x: 10, y: 10, width: cell.contentView.bounds.width - 20, height: cell.contentView.bounds.height - 20)
        }
    }
}