How to format Facebook/Twitter dates (from the JSON feed) in Objective-C

Question

For my iPhone application...

I am looking for a way to format the Facebook created_time JSON property value.

\"created_time\": \"2010-12-0

Answer 1

Translated to Swift 2 (Nimit Parekh answer)

func retrivePostTime(postDate: String) -> String {
    let df: NSDateFormatter = NSDateFormatter()
    df.dateFormat = "eee MMM dd HH:mm:ss ZZZZ yyyy"

    let userPostdate: NSDate = df.dateFromString(postDate)!
    let currentDate: NSDate = NSDate()
    let distanceBetweenDates: NSTimeInterval = currentDate.timeIntervalSinceDate(userPostdate)
    let theTimeInterval: NSTimeInterval = distanceBetweenDates
    let sysCalendar: NSCalendar = NSCalendar.currentCalendar()
    let date1: NSDate = NSDate()
    let date2: NSDate = NSDate(timeInterval: theTimeInterval, sinceDate: date1)
    let conversionInfo: NSDateComponents = sysCalendar.components([.Hour, .Minute, .Day, .Month, .Second], fromDate: date1, toDate: date2, options: [])

    var returnDate: String = ""
    if conversionInfo.month > 0 { returnDate = String(format: "%ldmth", conversionInfo.month) }
    else if conversionInfo.day > 0 { returnDate = String(format: "%ldd", conversionInfo.day) }
    else if conversionInfo.hour > 0 { returnDate = String(format: "%ldh", conversionInfo.hour) }
    else if conversionInfo.minute > 0 { returnDate = String(format: "%ldm", conversionInfo.minute) }
    else if conversionInfo.second > 0 { returnDate = String(format: "%lds", conversionInfo.second) }

    return returnDate
}