如何设置timePicker的限制

Question

这里使用timePicker通过UIDatePickerMode.time

现在，我现在的时间是下午3:13，但是在时间选择器中，我想显示从现在开始30分钟，即下午3:43，这意味着用户可以从下午3:43开始选择时间。我应该怎么做到这一点？

这是我试过的代码 我尝试了timePicker?.minimumDate。但它没有工作

    func timePicking(){
                    let timePicker = ActionSheetDatePicker(title: "Time", datePickerMode: UIDatePickerMode.time, selectedDate: NSDate() as Date!, target: self, action: #selector(self.timeSelected), origin: (sender as AnyObject).superview!?.superview)
                    let minimumTimeRestrict: TimeInterval = 0 * 30 * 60 * 60
                    timePicker?.minimumDate = NSDate(timeInterval: -minimumTimeRestrict, since: NSDate() as Date) as Date!
                    timePicker?.show()
}

Answer 1

Swift 4.0

如果您希望在UIDatePicker后30分钟显示时间，请添加minimumDate，如下所示。

let nextTime = Calendar.current.date(byAdding: .minute, value: 30, to: Date())            
timePicker.minimumDate = nextTime