NSDateFormatter automatically get dateFormat (Swift 2)

Question

Is there a way to get the dateFormat string automatically (without explicit setting it)?

     ///getting the date from datePicker
    func handleDatePicker(sender: UIDatePicker) {
        let timeFormatter = NSDateFormatter()
        timeFormatter.locale = NSLocale.currentLocale()
        timeFormatter.dateStyle = .MediumStyle
        timeFormatter.dateFormat = "dd MMM yyyy" ///get this automatically???
        dateTextField.text = timeFormatter.stringFromDate(sender.date)
    }



         [...]///other stuff
           let dateString = dateTextField.text
           let dateFormatter = NSDateFormatter()
           dateFormatter.dateFormat = "dd MMM yyyy" //can I get the string automatically based on user locale??? so I don't have to worry about setting the correct string?
           dateFormatter.locale = NSLocale.currentLocale()
           let dateFromString = dateFormatter.dateFromString(dateString!)
           print(dateFromString)/// gives nil if dateFormatter.dateFormat = "dd MMM yyyy" is commented out

Answer 1

You can able to use the following ways to apply the date format automatically. The below code is in Swift 3.0.

Way 1(Using Custom Date and Time Styles):

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = DateFormatter.dateFormat(fromTemplate: "dd MMM yyyy", options: 0, locale: NSLocale.current)
let dateString = dateFormatter.string(from: Date())

Way 2(Using Preset):

let dateString = DateFormatter.localizedString(from: Date(), dateStyle: .medium, timeStyle: .none)

Please refer this link for more info.