当在 Swift 中点击按钮时如何改变开关状态

Question

我正在制作一个基本应用程序，可以通过打开和关闭开关来告诉我一天中某个班级是否有作业。现在遇到的问题是重置按钮无法将所有开关变为关闭状态。如何在Swift中使用按钮更改开关状态？以下是我目前的代码：

//
//  ViewController.swift
//  HomeworkManager
//
//  Created by Nate Parker on 9/2/14.
//  Copyright (c) 2014 Nathan Parker. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

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


@IBAction func resetClicked(sender: AnyObject) {
}

@IBOutlet var spanish: UISwitch
@IBOutlet var algebra: UISwitch
@IBOutlet var amerCult: UISwitch
@IBOutlet var bio: UISwitch
@IBOutlet var col: UISwitch


}

- Nathan parker

Answer 1

只需要使用开关的setOn()方法即可：

@IBAction func resetClicked(sender: AnyObject) {
    spanish.setOn(false, animated: true);
    algebra.setOn(false, animated: true);
    amerCult.setOn(false, animated: true);
    bio.setOn(false, animated: true);
    col.setOn(false, animated: true);
}

- Mike S