When the pick date the start one timer function

When the pick date the start one timer function

调用picker中的函数

call the function in picker

var timercount = Timer()

viewdidload()
{
 timercount = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(Check), userInfo: nil, repeats: true)
}


     Func Check()
    {

     let nowdate = NSDate()//two date declare global Var
     let date2 = datePicker?.date //chek the Time How Much Time Remain
     let elapsed = date2?.timeIntervalSince(nowdate as Date)

     if Int(elapsed!) == 0
          {

            takePhoto = true
          }

    }