ios - uiswitch 状态改变问题

Question

我有一个开关，我想根据某些条件限制切换。 我们如何根据某些条件限制开关状态的变化？我还在 DispatchQueue.main.async 中尝试了 setOn。

if sender.isOn{
      self.pmLabel.textColor = UIColor.ktvPurple()
      self.amLabel.textColor = UIColor.lightGray

      if let pmTime = self.eveningShowtime{
        updateClock(from: CGFloat(pmTime), to: CGFloat(pmTime) + CGFloat(durationsHours))
        updatePieChart()
      }else{
        self.view.makeToast("Evening Shows are not available", duration: 1.0, position:CGPoint(x: SCREENWIDTH/2, y: SCREENHEIGHT - 180))
        ampmSwitch.isOn = false
      }

    }else{
      self.amLabel.textColor = UIColor.ktvPurple()
      self.pmLabel.textColor = UIColor.lightGray
      if let morningTime = self.morningShowTime{
        updateClock(from: CGFloat(morningTime), to: CGFloat(morningTime) + CGFloat(durationsHours))
        updatePieChart()
      }else{
        self.view.makeToast("Morning Shows are not available", duration: 1.0, position:CGPoint(x: SCREENWIDTH/2, y: SCREENHEIGHT - 180))
        ampmSwitch.isOn = true

      }




    }

Answer 1

例如:

if yourCondition {
    yourSwitch.enabled = false
}