How to force language in which reverse geocoding data on iOS is received?

Question

When i call

geocoder reverseGeocodeLocation:currentLoc completionHandler:

i get all the data (city, county, ...) in a language according t

Answer 1

For future readers, the accepted answer is not true (at least not any more).

UserDefaults.standard.set(["en"], forKey: "AppleLanguages")
gc.reverseGeocodeLocation(loc) {
    print($0 ?? $1!)

    UserDefaults.standard.removeObject(forKey: "AppleLanguages")
    print(UserDefaults.standard.object(forKey: "AppleLanguages") as! [String])
}

Calling removeObject(forKey:) is important since you want to reset the returned value in UserDefaults to the system settings. Some answers make you hold the original value from calling UserDefaults.standard.object(forKey: "AppleLanguages") and set it after getting the address, but this will stop your UserDefaults from being in sync with the global Language Preferences in iOS "Settings" app.