Attendance taking

I want to created a project on Android Studio. A simple one. To enable the worker to click "Signed in" when reaching the work place, however, they need to take a picture and also send their current location too. For the supervisor side, the supervisor is able to login too. Have the same function to "sign in" and taking a picture too. However they would have extra buttons to click on to check on the people who signed in and also view their current location and also viewing the picture saved. Supervisor also needs a button to "add new employee" then the username and password would be save too enabling the new employee to login. A delete button is also needed to delete employee account when they left the company. Supervisor is also able to download the attendances log of the employee for signing in daily. By the way, I would need the source codes too. As I am using this as one of my projects.