java - Can i access internal memory of Application of A using another apllication B? -

i have 2 applications.

application - , application - b

application - download songs server , stored internal memory . want read download files using application - b.

is possible ? if yes how can ?

thanks in advace.

a) if make them readable applications

b) if both applications signed , set them have shared userid, can share private storage

c) if make them readable applications encrypt them in way hope 2 apps can decode (but can't hand them off framework play)

remember rooted device open book though.