在UIPickerView的单元格内使用UIButton

// 自定义单元格视图
class CustomPickerCell: UIPickerViewCell {
    var button: UIButton!
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        // 创建按钮
        button = UIButton(type: .system)
        button.frame = bounds
        button.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
        
        addSubview(button)
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    @objc func buttonTapped() {
        // 按钮点击事件处理
        // 可以在这里执行一些操作，例如选择某个选项或者执行其他逻辑
    }
}

// UIPickerView的数据源方法
func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    var customView: CustomPickerCell
    
    if let reusedView = view as? CustomPickerCell {
        customView = reusedView
    } else {
        customView = CustomPickerCell(frame: CGRect(x: 0, y: 0, width: pickerView.bounds.width, height: 44))
    }
    
    // 设置按钮的样式、标题、背景等属性
    customView.button.setTitle("选项\(row)", for: .normal)
    // 其他属性设置...
    
    return customView
}