我想计算剩余时间。我有一个完成时间。如何计算从现在到完成时间之间的剩余时间?
我需要这样的东西
let date = NSDate()
let formatter = NSDateFormatter()
formatter.timeStyle = .ShortStyle
var now = formatter.stringFromDate(date) //prints 12.21 AM
var finishTime = "13:30 PM"
var remaining = now - finishTime //I want it to print 01:09 as remaining time
最佳答案
func timeRemainingString(finishDate date:NSDate) -> String {
let secondsFromNowToFinish = date.timeIntervalSinceNow
let hours = Int(secondsFromNowToFinish / 3600)
let minutes = Int((secondsFromNowToFinish - Double(hours) * 3600) / 60)
let seconds = Int(secondsFromNowToFinish - Double(hours) * 3600 - Double(minutes) * 60 + 0.5)
return String(format: "%02d:%02d:%02d", hours, minutes, seconds)
}
关于swift - 如何找到两次之间的时间跨度?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32619047/