如何将UIDatePicker更改为特定时间(以代码形式) [英] How to change UIDatePicker to a specific time (in code)

问题描述

我需要动态地将UIDatePicker更改为特定的

I need to change the UIDatePicker to a specific dynamically.

我的日期选择器仅设置为时间模式. 我可以用

My date picker is set to time mode only. i can set the time with

timePicker.setDate(NSDate(), animated: false)

但是我不知道如何将其更改为其他时间，而不是 当前时间.

but i cant figure out how to change it to a different time and not to current time.

那我该如何更改呢?

谢谢

推荐答案

您必须更改时间，可以使用NSDateComponents进行设置，并将修改后的日期设置为DatePicker

You've to change the time, you can do it using NSDateComponents and set the modified date to your DatePicker

var calendar:NSCalendar = NSCalendar.currentCalendar()
let components = calendar.components(NSCalendarUnit.HourCalendarUnit | NSCalendarUnit.MinuteCalendarUnit, fromDate: NSDate())
components.hour = 5
components.minute = 50
datePicker.setDate(calendar.dateFromComponents(components)!, animated: true)

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