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

My needs are simpler, either "now" or "x ago"

Since iOS 8 you can use (NS)DateComponentsFormatter

func getElapsedInterval() -> String {

    let formatter = DateComponentsFormatter()
    formatter.allowedUnits = [.minute, .hour, .day, .month, .year]
    formatter.unitsStyle = .abbreviated
    formatter.zeroFormattingBehavior = .dropAll
    formatter.maximumUnitCount = 1

    var dateString: String?

    if self.timeIntervalSince(Date()) > -60*5 {
        dateString = NSLocalizedString("now", comment: "")
    } else {
        dateString = String.init(format: NSLocalizedString("%@ ago", comment: ""), locale: .current, formatter.string(from: self, to: Date())!)
    }

    return dateString ?? ""
}

e.g.

var date = Date.init(timeIntervalSinceNow: -60)
print(date.getElapsedInterval())
date = Date.init(timeIntervalSinceNow: -60*10)
print(date.getElapsedInterval())
date = Date.init(timeIntervalSinceNow: -60*60)
print(date.getElapsedInterval())
date = Date.init(timeIntervalSinceNow: -60*60*24)
print(date.getElapsedInterval())
date = Date.init(timeIntervalSinceNow: -60*60*24*30)
print(date.getElapsedInterval())
date = Date.init(timeIntervalSinceNow: -60*60*24*31*12)
print(date.getElapsedInterval())

now
10m ago
1h ago
1d ago
1mo ago
1y ago