I need a simple android app that will read GPS coordinates and send it to a server

Hi,

We need a very simple app that will have an input field for a username, and a button to ENABLE or DISABLE the service.

The service must run in background when enabled, and send the GPS coordinates of the phone's GPS to a PHP post URL on our server.

So the user types his username, click enable, and the enable button becomes a "disable" button and the app will send a PHP post every X seconds until the user comes back and click "disable". the button then re-becomes "enable" etc.

I'd also like a text element that returns the PHP response (success or fail)

App should look like the attached screenshot, or better.