Question

我按钮的作用是按下它后会在当天余下时间禁用。现在我的代码在按下后会禁用它，但是如果用户离开应用程序并返回它，则该按钮将再次启用。有没有办法使用NSUserDefaults？

let save = UserDefaults.standard
let calendar = Calendar.current
let now = Date()

这是在viewDidLoad：

中

    let seven_today = calendar.date(
        bySettingHour: 7,
        minute: 0,
        second: 0,
        of: now)!

    let two_thirty_today = calendar.date(
        bySettingHour: 14,
        minute: 30,
        second: 0,
        of: now)!

    if now >= seven_today && now <= two_thirty_today

    {
        getPointsOutlet.isEnabled = true
    }

    else

    {
        getPointsOutlet.isEnabled = false
    }

这是按下按钮的功能：

 Total_Points += 12
 pointsLabel.text = "Total Points: \(Total_Points)"
 getPointsOutlet.isEnabled = false

Answer 1

试试这个：

  if now >= seven_today && now <= two_thirty_today

  {

     let savedDayNum = defaults.integer(forKey: "dayClickNum")


     let date = Date()

     let calendar = Calendar.current

     let nowDayNum = calendar.component(.day, from: date)


    if(savedDayNum == nowDayNum)
    {
         getPointsOutlet.isEnabled = false
    }
    else
    {
         getPointsOutlet.isEnabled = true
    }
  }

  else

 {
      getPointsOutlet.isEnabled = false
 }

//在函数中单击执行此操作

 Total_Points += 12

 pointsLabel.text = "Total Points: \(Total_Points)"  

 getPointsOutlet.isEnabled = false


 let date = Date()

 let calendar = Calendar.current

 let dayOfClickDate = calendar.component(.day, from: date)

 defaults.set(dayOfClickDate, forKey: "dayClickNum")

另外，对于一个完美的解决方案，你可以照顾一个月，因为如果存储的num天与另一个月的开放日重合，用户可能无法再启动app一个月可能会禁用该按钮

如何保存Xcode按钮的残疾

1 个答案: