Swift convert time to time ago

Question

In Swift5, we have RelativeDateTimeFormatter

Prior to Swift5:

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I\'m trying to convert time to time ago, what i wanna do is:

from 1

Answer 1

Swift 4 version of truongky's code:

And Add Optional for TimeEnd not now.

extension Date {

    func getElapsedInterval(to end: Date = Date()) -> String {

        if let interval = Calendar.current.dateComponents([Calendar.Component.year], from: self, to: end).day {
            if interval > 0 {
                return "\(interval) year\(interval == 1 ? "":"s")"
            }
        }

        if let interval = Calendar.current.dateComponents([Calendar.Component.month], from: self, to: end).month {
            if interval > 0 {
                return "\(interval) month\(interval == 1 ? "":"s")"
            }
        }

        if let interval = Calendar.current.dateComponents([Calendar.Component.weekOfMonth], from: self, to: end).weekOfMonth {
            if interval > 0 {
                return "\(interval) week\(interval == 1 ? "":"s")"
            }
        }

        if let interval = Calendar.current.dateComponents([Calendar.Component.day], from: self, to: end).day {
            if interval > 0 {
                return "\(interval) day\(interval == 1 ? "":"s")"
            }
        }

        if let interval = Calendar.current.dateComponents([Calendar.Component.hour], from: self, to: end).hour {
            if interval > 0 {
                return "\(interval) hour\(interval == 1 ? "":"s")"
            }
        }

        if let interval = Calendar.current.dateComponents([Calendar.Component.minute], from: self, to: end).minute {
            if interval > 0 {
                return "\(interval) minute\(interval == 1 ? "":"s")"
            }
        }

        return "Just now."
    }

}