Created
November 7, 2014 15:28
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"Time ago" function for Swift (based on MatthewYork's DateTools for Objective-C)
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func timeAgoSinceDate(date:NSDate, numericDates:Bool) -> String { | |
let calendar = NSCalendar.currentCalendar() | |
let unitFlags = NSCalendarUnit.CalendarUnitMinute | NSCalendarUnit.CalendarUnitHour | NSCalendarUnit.CalendarUnitDay | NSCalendarUnit.CalendarUnitWeekOfYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitSecond | |
let now = NSDate() | |
let earliest = now.earlierDate(date) | |
let latest = (earliest == now) ? date : now | |
let components:NSDateComponents = calendar.components(unitFlags, fromDate: earliest, toDate: latest, options: nil) | |
if (components.year >= 2) { | |
return "\(components.year) years ago" | |
} else if (components.year >= 1){ | |
if (numericDates){ | |
return "1 year ago" | |
} else { | |
return "Last year" | |
} | |
} else if (components.month >= 2) { | |
return "\(components.month) months ago" | |
} else if (components.month >= 1){ | |
if (numericDates){ | |
return "1 month ago" | |
} else { | |
return "Last month" | |
} | |
} else if (components.weekOfYear >= 2) { | |
return "\(components.weekOfYear) weeks ago" | |
} else if (components.weekOfYear >= 1){ | |
if (numericDates){ | |
return "1 week ago" | |
} else { | |
return "Last week" | |
} | |
} else if (components.day >= 2) { | |
return "\(components.day) days ago" | |
} else if (components.day >= 1){ | |
if (numericDates){ | |
return "1 day ago" | |
} else { | |
return "Yesterday" | |
} | |
} else if (components.hour >= 2) { | |
return "\(components.hour) hours ago" | |
} else if (components.hour >= 1){ | |
if (numericDates){ | |
return "1 hour ago" | |
} else { | |
return "An hour ago" | |
} | |
} else if (components.minute >= 2) { | |
return "\(components.minute) minutes ago" | |
} else if (components.minute >= 1){ | |
if (numericDates){ | |
return "1 minute ago" | |
} else { | |
return "A minute ago" | |
} | |
} else if (components.second >= 3) { | |
return "\(components.second) seconds ago" | |
} else { | |
return "Just now" | |
} | |
} |
Sorry for interrupting the party, but seems like "time ago" feature is implemented in DateTools with locales and just works:
https://github.com/MatthewYork/DateTools#time-ago
let timeAgoDate = 2.days.earlier
print("Time Ago: ", timeAgoDate.timeAgoSinceNow)
print("Time Ago: ", timeAgoDate.shortTimeAgoSinceNow)
//Output:
//Time Ago: 2 days ago
//Time Ago: 2d
The framework looks nice. However, sometimes only a feature is needed, not the whole framework = why to buy the whole cow if you need only milk.
This is my version. It is based on @dariukas, but fixes some bugs
import Foundation
extension Date {
///
/// Provides a humanised date. For instance: 1 minute, 1 week ago, 3 months ago
///
/// - Parameters:
// - numericDates: Set it to true to get "1 year ago", "1 month ago" or false if you prefer "Last year", "Last month"
///
func timeAgo(numericDates:Bool) -> String {
let calendar = Calendar.current
let now = Date()
let earliest = self < now ? self : now
let latest = self > now ? self : now
let unitFlags: Set<Calendar.Component> = [.minute, .hour, .day, .weekOfMonth, .month, .year, .second]
let components: DateComponents = calendar.dateComponents(unitFlags, from: earliest, to: latest)
//print("")
//print(components)
if let year = components.year {
if (year >= 2) {
return "\(year) years ago"
} else if (year >= 1) {
return numericDates ? "1 year ago" : "Last year"
}
}
if let month = components.month {
if (month >= 2) {
return "\(month) months ago"
} else if (month >= 1) {
return numericDates ? "1 month ago" : "Last month"
}
}
if let weekOfMonth = components.weekOfMonth {
if (weekOfMonth >= 2) {
return "\(weekOfMonth) weeks ago"
} else if (weekOfMonth >= 1) {
return numericDates ? "1 week ago" : "Last week"
}
}
if let day = components.day {
if (day >= 2) {
return "\(day) days ago"
} else if (day >= 1) {
return numericDates ? "1 day ago" : "Yesterday"
}
}
if let hour = components.hour {
if (hour >= 2) {
return "\(hour) hours ago"
} else if (hour >= 1) {
return numericDates ? "1 hour ago" : "An hour ago"
}
}
if let minute = components.minute {
if (minute >= 2) {
return "\(minute) minutes ago"
} else if (minute >= 1) {
return numericDates ? "1 minute ago" : "A minute ago"
}
}
if let second = components.second {
if (second >= 3) {
return "\(second) seconds ago"
}
}
return "Just now"
}
}
@merlos nice, thank you !
@merlos awesome! thank you
My version in Swift 4.2:
import Foundation
extension Date {
func timeAgo(numericDates: Bool) -> String {
let calendar = Calendar.current
let now = Date()
let earliest = self < now ? self : now
let latest = self > now ? self : now
let unitFlags: Set<Calendar.Component> = [.minute, .hour, .day, .weekOfMonth, .month, .year, .second]
let components: DateComponents = calendar.dateComponents(unitFlags, from: earliest, to: latest)
let year = components.year ?? 0
let month = components.month ?? 0
let weekOfMonth = components.weekOfMonth ?? 0
let day = components.day ?? 0
let hour = components.hour ?? 0
let minute = components.minute ?? 0
let second = components.second ?? 0
switch (year, month, weekOfMonth, day, hour, minute, second) {
case (let year, _, _, _, _, _, _) where year >= 2: return "\(year) years ago"
case (let year, _, _, _, _, _, _) where year == 1 && numericDates: return "1 year ago"
case (let year, _, _, _, _, _, _) where year == 1 && !numericDates: return "Last year"
case (_, let month, _, _, _, _, _) where month >= 2: return "\(month) months ago"
case (_, let month, _, _, _, _, _) where month == 1 && numericDates: return "1 month ago"
case (_, let month, _, _, _, _, _) where month == 1 && !numericDates: return "Last month"
case (_, _, let weekOfMonth, _, _, _, _) where weekOfMonth >= 2: return "\(weekOfMonth) weeks ago"
case (_, _, let weekOfMonth, _, _, _, _) where weekOfMonth == 1 && numericDates: return "1 week ago"
case (_, _, let weekOfMonth, _, _, _, _) where weekOfMonth == 1 && !numericDates: return "Last week"
case (_, _, _, let day, _, _, _) where day >= 2: return "\(day) days ago"
case (_, _, _, let day, _, _, _) where day == 1 && numericDates: return "1 day ago"
case (_, _, _, let day, _, _, _) where day == 1 && !numericDates: return "Yesterday"
case (_, _, _, _, let hour, _, _) where hour >= 2: return "\(hour) hours ago"
case (_, _, _, _, let hour, _, _) where hour == 1 && numericDates: return "1 hour ago"
case (_, _, _, _, let hour, _, _) where hour == 1 && !numericDates: return "An hour ago"
case (_, _, _, _, _, let minute, _) where minute >= 2: return "\(minute) minutes ago"
case (_, _, _, _, _, let minute, _) where minute == 1 && numericDates: return "1 minute ago"
case (_, _, _, _, _, let minute, _) where minute == 1 && !numericDates: return "A minute ago"
case (_, _, _, _, _, _, let second) where second >= 3: return "\(second) seconds ago"
default: return "Just now"
}
}
}
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A Swift 4 version without force unwrapping: