Write an Entry Taking Android application

I am looking for a simple entry taking app where there's the mainactivity extends fragment and its has an expandablelistview and a button when the button is clicked it should go to another class and get the user inputs, put them in the SQLite database. In the mainactivty populate the expandablelistview based on the sqlite data received from the user. I want the sourced code of the program not just the apk file. Your job is very small so kindly don't demand more.