Android File Manager Application

[Guest treborleinad]

Hello,

For a module at university my group has been assigned the task of developing an android file manager application with a pin/password lock.

The user will have their own account, then within their account they are able to checkbox which files and folders they want to pin/password lock.

I have done some research on google but the only results I was getting were file managers that just offered the pin/password lock and not the ability to register an account.

My question is: does anyone know of any applications that will allow this feature?

Thanks,

Rob