title: Android how to let users interact with each other
body: <p>Been doing basic Android development for awhile now. Ready to implement some ideas previously I was to unsure to touch on.</p>
  
  <p>If this question has already been asked please feel free to direct me there as I can not find a thread.</p>
  
  <p>Lets say based on user interaction some data is collected and entered to either a text or XML file. How can I enable this user to send this data thats been collected to another Android user using the same app? Are there any APIs out there capable of transferring data between users? </p>
  
  <p>In a simple example, Facebook Messaging. One message is created by a user and sent to another user. How can I get on the right path to this?</p>
  
  <p>Thank you!</p>