How to list additional external storage folders (mount points)?

Question

By default, \"external\" storage on Android is presented as /sdcard folder. On some devices it\'s not SD card but internal memory.

Some devices allow attachment of a

Answer 1

I found a code that uses /proc/mount to return all mounted storages here:

How can I get the list of mounted external storage of android device

I've tested it on 4 different devices and it works like a charm.