Userdefaults具有Swift3

Question

類型 'UserDefaults' 不構件standarduserdefaults沒有成員 'StandardUserDefaults'

這是夫特3.

這裏是遊戲視圖控制器

import UIKit 
import SpriteKit 

class GameViewController: UIViewController { 

    @IBOutlet var darkswitch: UISwitch! 

    @IBOutlet var lightswitch: UISwitch! 

    var DarkOn = Bool() 

    var LightOn = Bool() 


    override func viewDidLoad() { 
     super.viewDidLoad() 


     if (DarkOn == true){ 
      darkswitch.isOn = true 
      lightswitch.isOn = false 

     } 

     if (lightswitch == true){ 
      darkswitch.isOn = false 
      lightswitch.isOn = true 

     } 




     if let scene = GameScene.unarchiveFromFile("GameScene") as? GameScene { 
      // Configure the view. 
      let skView = self.view as! SKView 

      skView.backgroundColor = UIColor.white 

      /* Sprite Kit applies additional optimizations to improve rendering performance */ 
      skView.ignoresSiblingOrder = true 

      /* Set the scale mode to scale to fit the window */ 
      scene.scaleMode = .aspectFill 
      ˚ 
      skView.presentScene(scene) 
     } 
    } 

    override var shouldAutorotate : Bool { 
     return true 
    } 

    override var supportedInterfaceOrientations : UIInterfaceOrientationMask { 
     if UIDevice.current.userInterfaceIdiom == .phone { 
      return UIInterfaceOrientationMask.allButUpsideDown 
     } else { 
      return UIInterfaceOrientationMask.all 
     } 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Release any cached data, images, etc that aren't in use. 
    } 

    @IBAction func darkaction(_ sender: AnyObject) { 
     darkswitch.isOn = true 
     lightswitch.isOn = false 

     var darkdefault = UserDefaults.StandardUserDefaults() 
     darkdefault.setBool(true,forKey: "darkdefault") 


     var lightdefault = UserDefaults.StandardUserDefaults() 

     lightdefault.setBool (false, forkey: "lightdefault") 

    } 


    @IBAction func lightaction(_ sender: AnyObject) { 
     darkswitch.isOn = false 
     lightswitch.isOn = true 

     var darkdefault = UserDefaults.StandardUserDefaults() 
     darkdefault.setBool(false,forKey: "darkdefault") 


     var lightdefault = UserDefaults.StandardUserDefaults() 

     lightdefault.setBool (true, forkey: "lightdefault") 
    } 



    override var prefersStatusBarHidden : Bool { 
     return true 
    } 
} 

Answer 1

現在是

UserDefaults.standard.