objective-c - 如何将基于十进制的时间转换为 NSDate？

Question

我有时间表示为 double 。例如:

8:00am is 8.00
1:30pm is 13.50
6:15pm is 18.25
11:20pm is 23.333

如何将 double 转换为今天的 NSDate？

Answer 1

let input = 13.50

let hour = Int(input)
let minute = Int((input - Double(Int(input))) * 60)

let resultDate = NSCalendar.currentCalendar().dateBySettingHour(hour, minute: minute, second: 0, ofDate: NSDate(), options: nil)!