以编程方式在UITableViewCell的底部添加UIView

import UIKit

class CustomTableViewCell: UITableViewCell {
    private var bottomView: UIView!
    
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        setupBottomView()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupBottomView()
    }
    
    private func setupBottomView() {
        bottomView = UIView()
        contentView.addSubview(bottomView)
        
        // 设置底部视图的约束，例如使用Auto Layout
        bottomView.translatesAutoresizingMaskIntoConstraints = false
        bottomView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor).isActive = true
        bottomView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor).isActive = true
        bottomView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor).isActive = true
        bottomView.heightAnchor.constraint(equalToConstant: 50).isActive = true
        
        // 可以在这里对底部视图进行样式设置，例如背景颜色、边框等
        bottomView.backgroundColor = UIColor.lightGray
    }
    
    func configureBottomView(_ view: UIView) {
        // 移除之前添加的子视图
        bottomView.subviews.forEach { $0.removeFromSuperview() }
        
        // 添加新的底部视图
        bottomView.addSubview(view)
        
        // 设置底部视图的约束，例如使用Auto Layout
        view.translatesAutoresizingMaskIntoConstraints = false
        view.leadingAnchor.constraint(equalTo: bottomView.leadingAnchor).isActive = true
        view.trailingAnchor.constraint(equalTo: bottomView.trailingAnchor).isActive = true
        view.topAnchor.constraint(equalTo: bottomView.topAnchor).isActive = true
        view.bottomAnchor.constraint(equalTo: bottomView.bottomAnchor).isActive = true
    }
}

// 在tableView(_:cellForRowAt:)方法中使用自定义的UITableViewCell类
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell", for: indexPath) as! CustomTableViewCell
    
    // 创建一个底部视图
    let customView = UIView()
    customView.backgroundColor = UIColor.red
    
    // 设置底部视图的内容
    cell.configureBottomView(customView)
    
    return cell
}