swift - 如何在 Swift 中多次显示通知？

Question

有没有办法每 15 秒快速显示一次通知？我通过

检查过

notification.fireDate=NSDate(timeIntervalSinceNow: 15)

但它并不是每次都只显示一次，我们如何才能将它作为一个循环来实现？

Answer 1

您不能每 15 秒安排一次通知。通知之间的最短时间间隔为 1 分钟，这也不太可能需要。

var repeatInterval: NSCalendarUnit { get set }

Description The calendar interval at which to reschedule the notification. If you assign a calendar unit such as weekly (NSWeekCalendarUnit) or yearly (NSYearCalendarUnit), the system reschedules the notification for delivery at the specified interval. Note that intervals of less than one minute are not supported. The default value is 0, which means that the system fires the notification once and then discards it.

所以只需按如下方式设置:

notification.repeatInterval = .Minute