How can I change the locale for my app programmatically via Swift? [closed]

Question

I have a language selection control in my application, and I want to be able to set the locale accordingly during runtime. How can I achieve this?

Answer 1

I found the answer

NSUserDefaults.standardUserDefaults().setObject(["fr"], forKey: "AppleLanguages")
NSUserDefaults.standardUserDefaults().synchronize()

Swift 3:

UserDefaults.standard.set(["fr"], forKey: "AppleLanguages")
UserDefaults.standard.synchronize()