UIDatePicker.Mode.countDownTimer：我可以只显示五乘五分钟吗？

Question

Is it possible to use a UIDatePicker with .datePickerMode =.countDownTimer , but setting minutes five by five? I mean, having only 0, 5, 10, 15... as possible values for the minutes?

Or do I need to write my own UIPickerView for this?

Thank you for your help

Answer 1

Yes, You should set timeInterval: 5.

The interval is measured seconds so for it to perform like a standard clock we should set this argument to 1. if you want to count 5 by 5 second. You shal pass to 5 as a parameter.

func runTimer() { 
     timer = Timer.scheduledTimer(timeInterval: 5, target: self,   selector: (#selector(TimeViewController.updateTime)), userInfo: nil, repeats: true)
}