How can I detect if a user has changed the iPhone

Question

I am going to use these language changes as triggers in the code that I'm going to write.

For example:

if languageHasChanged() {
    //do something
}

Answer 1

If NSLocale.currentLocaleDidChangeNotification is not available, you can store the actual Locale in applicationWillTerminate and applicationWillEnterBackground in a variable, and compare it to the locale in applicationDidBecomeActive.

Answer 2

Register for the NSLocale.currentLocaleDidChangeNotification notification.

NotificationCenter.default.addObserver(self, selector: #selector(localeChanged), name: NSLocale.currentLocaleDidChangeNotification, object: nil)

func localeChanged() {

}