如何在swift上实现像“文件”应用程序那样的下拉菜单上的复选标记

import UIKit

class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
    
    let options = ["Option 1", "Option 2", "Option 3", "Option 4"]
    var selectedOptions: [Bool] = []
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let pickerView = UIPickerView()
        pickerView.dataSource = self
        pickerView.delegate = self
        view.addSubview(pickerView)
        
        // 初始化选中状态数组
        selectedOptions = Array(repeating: false, count: options.count)
    }
    
    // MARK: - UIPickerViewDataSource
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return options.count
    }
    
    // MARK: - UIPickerViewDelegate
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return options[row]
    }
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        selectedOptions[row] = !selectedOptions[row] // 切换选中状态
        
        // 更新选项的显示
        pickerView.reloadComponent(component)
        
        // 执行相应的操作，例如打印选中的选项
        printSelectedOptions()
    }
    
    // MARK: - Helper Methods
    
    func printSelectedOptions() {
        for (index, option) in options.enumerated() {
            if selectedOptions[index] {
                print("选中的选项：\(option)")
            }
        }
    }
}