Puzzle for Android

I want something simple in what sense: - the code has to be functional not well implemented - the basic functions should be: - a simple log in (should stay logged after the user creates a user, until he decides to switch or log out); - working with a SQLite database (1 table for user) - select an image from the phone memory, split it in pieces(would be an extra if you manage to give them the form of a traditional jigsaw puzzle piece), send them to a swipe list(gallery could work) from which i need a drag and drop option to a image View in order to fix the piece(check if it`s in the correct area), ex: when you split the image remember it`s position and if the piece is in that area when i release the piece it should fix in position. I can provide a small amount of code in order to see the class structure. Problem is the time i need it done in 3-4 days.