How to send data to another Android Aplication and receive the processed data back?
<p>I want to create two separate Android applications to behave like this:</p>

<p>MainAplication will call Aplication2 when a buttom is clicked, then the MainAplication will send some data to Aplication2, Aplication2 will open in front of the MainAplication(top of the screen), will process the information sent and then when a buttom inside Aplication2 is clicked it will disappear and the MainAplication will remain on the top the screen and receive the information procesed.</p>

<p>Can you please give me an idea on how to complete this approach. </p>

<p>A basic idea of what I want to create is this:</p>

<p><a href="http://imgur.com/bUCub" rel="nofollow">Apps Idea</a></p>
