Android Radio App

Hi all freelancers, I want you to develope a simple radio application. The app is allready available to iPhone. I want a copy of the same features and functions to work with android. I don't want any paid version, only free version all users can download. But I want to be able to show ads on the bottom of the radio. I also want to have opportunity to minimize the app, such that the user can listen to the radio, even when the screen is locked, so the users can have the phone in there pockets, but still have the opportunity to listen to the radio.