B4A Class ExternalStorage - Access SD cards and USB sticks

[Erel]

- V1.04: Packed as a b4xlib. New PreviousUriFileName field that can be used if you need multiple instances of ExternalStorages. This field defines the file where the URI will be written to for future uses.

 

[Erel]

Added to "before we start":

This class can also be used to access the secondary storage (File.DirRootExternal). This becomes relevant with newer versions of Android that restrict direct access.