我有一个(有点?)关于Swift中的时间转换的基本问题。
我有一个整数,我想转换成小时/分钟/秒。
示例:Int = 27005会给我:
7 Hours 30 Minutes 5 Seconds
我知道如何在PHP中做到这一点,但是,唉,swift不是PHP。
我有一个(有点?)关于Swift中的时间转换的基本问题。
我有一个整数,我想转换成小时/分钟/秒。
示例:Int = 27005会给我:
7 Hours 30 Minutes 5 Seconds
我知道如何在PHP中做到这一点,但是,唉,swift不是PHP。
当前回答
我已经构建了一个现有答案的mashup,以简化一切并减少Swift 3所需的代码量。
func hmsFrom(seconds: Int, completion: @escaping (_ hours: Int, _ minutes: Int, _ seconds: Int)->()) {
completion(seconds / 3600, (seconds % 3600) / 60, (seconds % 3600) % 60)
}
func getStringFrom(seconds: Int) -> String {
return seconds < 10 ? "0\(seconds)" : "\(seconds)"
}
用法:
var seconds: Int = 100
hmsFrom(seconds: seconds) { hours, minutes, seconds in
let hours = getStringFrom(seconds: hours)
let minutes = getStringFrom(seconds: minutes)
let seconds = getStringFrom(seconds: seconds)
print("\(hours):\(minutes):\(seconds)")
}
打印:
00:01:40
其他回答
我正在使用这个扩展
extension Double {
func stringFromInterval() -> String {
let timeInterval = Int(self)
let millisecondsInt = Int((self.truncatingRemainder(dividingBy: 1)) * 1000)
let secondsInt = timeInterval % 60
let minutesInt = (timeInterval / 60) % 60
let hoursInt = (timeInterval / 3600) % 24
let daysInt = timeInterval / 86400
let milliseconds = "\(millisecondsInt)ms"
let seconds = "\(secondsInt)s" + " " + milliseconds
let minutes = "\(minutesInt)m" + " " + seconds
let hours = "\(hoursInt)h" + " " + minutes
let days = "\(daysInt)d" + " " + hours
if daysInt > 0 { return days }
if hoursInt > 0 { return hours }
if minutesInt > 0 { return minutes }
if secondsInt > 0 { return seconds }
if millisecondsInt > 0 { return milliseconds }
return ""
}
}
用途不同
// assume myTimeInterval = 96460.397
myTimeInteval.stringFromInterval() // 1d 2h 47m 40s 397ms
根据GoZoner的答案,我写了一个扩展,以获得时间格式化根据小时,分钟和秒:
extension Double {
func secondsToHoursMinutesSeconds () -> (Int?, Int?, Int?) {
let hrs = self / 3600
let mins = (self.truncatingRemainder(dividingBy: 3600)) / 60
let seconds = (self.truncatingRemainder(dividingBy:3600)).truncatingRemainder(dividingBy:60)
return (Int(hrs) > 0 ? Int(hrs) : nil , Int(mins) > 0 ? Int(mins) : nil, Int(seconds) > 0 ? Int(seconds) : nil)
}
func printSecondsToHoursMinutesSeconds () -> String {
let time = self.secondsToHoursMinutesSeconds()
switch time {
case (nil, let x? , let y?):
return "\(x) min \(y) sec"
case (nil, let x?, nil):
return "\(x) min"
case (let x?, nil, nil):
return "\(x) hr"
case (nil, nil, let x?):
return "\(x) sec"
case (let x?, nil, let z?):
return "\(x) hr \(z) sec"
case (let x?, let y?, nil):
return "\(x) hr \(y) min"
case (let x?, let y?, let z?):
return "\(x) hr \(y) min \(z) sec"
default:
return "n/a"
}
}
}
let tmp = 3213123.printSecondsToHoursMinutesSeconds() // "892 hr 32 min 3 sec"
我已经回答了类似的问题,但是你不需要在结果中显示毫秒。因此,我的解决方案需要iOS 10.0, tvOS 10.0, watchOS 3.0或macOS 10.12。
你应该调用func convertDurationUnitValueToOtherUnits(durationValue:durationUnit: smallstunitduration:)从我已经在这里提到的答案:
let secondsToConvert = 27005
let result: [Int] = convertDurationUnitValueToOtherUnits(
durationValue: Double(secondsToConvert),
durationUnit: .seconds,
smallestUnitDuration: .seconds
)
print("\(result[0]) hours, \(result[1]) minutes, \(result[2]) seconds") // 7 hours, 30 minutes, 5 seconds
下面是Swift3中的另一个简单实现。
func seconds2Timestamp(intSeconds:Int)->String {
let mins:Int = intSeconds/60
let hours:Int = mins/60
let secs:Int = intSeconds%60
let strTimestamp:String = ((hours<10) ? "0" : "") + String(hours) + ":" + ((mins<10) ? "0" : "") + String(mins) + ":" + ((secs<10) ? "0" : "") + String(secs)
return strTimestamp
}
斯威夫特5:
extension Int {
func secondsToTime() -> String {
let (h,m,s) = (self / 3600, (self % 3600) / 60, (self % 3600) % 60)
let h_string = h < 10 ? "0\(h)" : "\(h)"
let m_string = m < 10 ? "0\(m)" : "\(m)"
let s_string = s < 10 ? "0\(s)" : "\(s)"
return "\(h_string):\(m_string):\(s_string)"
}
}
用法:
let seconds : Int = 119
print(seconds.secondsToTime()) // Result = "00:01:59"