Finding the distance, currency, temperature units etc. for a country (iPhone)

Question

During the localization of my app I went through a lot of documentation, somewhere Im sure I read that there is a way to get a set of units that is linked with the locale.

Answer 1

Swift:

1.)

import MapKit

2.) Since creating formatter is expensive, you better set formatter as a lazy property. By doing so, you can initialize the formatter only when it's necessary and reuse the formatter rather than create a new one.

lazy var distanceFormatter: MKDistanceFormatter = {
    var tempDistanceFormatter =  MKDistanceFormatter()
    tempDistanceFormatter.unitStyle = .Abbreviated // .abbreviated in Swift 3

    return tempDistanceFormatter
}()

3.)

let distanceString = self.distanceFormatter.stringFromDistance(yourDistance)