We are developing a React Native app supporting three languages. For various reasons, we must have specific language selection logic in the app and a language selector within the app.
In iOS 13 there is a new "Preferred language" selector in the system settings for the app. We would want the in-app language selector to change the preferred language, and conversely that the user could also change their language in the system settings.
How can I read/write the iOS "Preferred language" in a React Native app?