开启开关时更改UITableViewCells的背景颜色-Swift

我试图做到这一点，以便用户在打开暗模式（使用开关）时将表格视图单元格的背景色更改为黑色（因此为暗模式）。我也想知道如何在打开开关的同时更改导航栏的颜色。

以下是我尝试过的（完整代码）：

import Foundation
import UIKit

class SideMenuController8: UITableViewController{

    @IBOutlet var TableViewColor: UITableView!

    @IBOutlet weak var OpenSettings: UIBarButtonItem!
    @IBOutlet weak var mSwitch: UISwitch!
    @IBOutlet weak var dSwitch: UISwitch!
    override func viewDidLoad() {

        self.navigationController?.navigationBar.topItem!.title = "Settings"


        if revealViewController() != nil {
            OpenSettings.target = revealViewController()
            OpenSettings.action = #selector(SWRevealViewController.revealToggle(_:))
            view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
        }




//        mSwitch.layer.borderWidth = 1
//        mSwitch.layer.borderColor = UIColor.white.cgColor
        let onColor  = UIColor(red: CGFloat(0.0), green: CGFloat(122.0 / 255.0), blue: CGFloat(1.0), alpha: CGFloat(1.0))
        let offColor = UIColor.white

        //Notifications On Switch
        mSwitch.isOn = false
        /*For on state*/
        mSwitch.onTintColor = onColor
        /*For off state*/
        mSwitch.tintColor = offColor
        mSwitch.layer.cornerRadius = 16
        mSwitch.backgroundColor = offColor

        //Dark Mode Switch
        dSwitch.isOn = false
        /*For on state*/
        dSwitch.onTintColor = onColor
        /*For off state*/
        dSwitch.tintColor = offColor
        dSwitch.layer.cornerRadius = 16
        dSwitch.backgroundColor = offColor




            if (dSwitch.isOn == true){

                TableViewColor.reloadData()
                print("Dark Mode Switch is on")

            }


    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}

这是另一个图片，显示了我的主要情节提要