How can I know what input languages added at the android device please?

How can I know what input languages added at the android device please ?

like for example how to know if someone added ( French , Spanish , Russian … etc language ) using the app inventor methods or via extension please is it possible ?

Many thanks

It might well need an extension to do that, but there isn’t one I know of.

The Android API has a function “getAvailableLocales()”, the results of which are what you are looking for. Apparently it produces an overly long list because it is by country - so all of the english speaking countries for example make for a long list that needs to be filtered.

ColinTree has a System Language Extension - it only verifies the current active locale, but you could request an enhancement, or even use it as a basis for a new extension yourself - it’s open source: https://github.com/OpenSourceAIX