Are there in Android string values for the metric units? Something like
android.R.string.meters --> "meters" in EN / "metri" in IT
If not, is there a library for this? Couldn't find anything on the official docs nor on Android Arsenal. Thanks.
Are there in Android string values for the metric units?
There are not. See this for available Android string values.
I couldnt find any resources for language strings neither.
I think you need to implement by yourself. However you dont need a library for achieving multiple language support. You can see this link on android-developers.