Is custom multiple user login


What I have is a project where the client wants a single Android device that will be in a custom enclosure to allow a person to sign in and post a photo from the device. After this the device would destroy the session and user info and start over in the process. The key being not to use the info based on the device, but individual users that use it. Is this possible and if so can someone point me in the right direction?

closed #2