title: Android activity - remote service aidl two way connection
body: <p>I have two problems:</p>
  
  <ol>
  <li>I know that for connection <em>activity</em> and <em>remote-service</em> I have to use <em>AIDL</em>.
  I tried this and it's work but I can find only one way connections example. In simple words - reading something from service (by activity). But I need <em>solve for sending some data to activity</em> (by or from service). It's so important because the service have to send some information to activity immediatly after some its events (obtain data from the net).</li>
  <li>Is it way to bring  to front again closed application (activity) from the remote service? </li>
  </ol>
  
  <p>Any suggestions would be greatly appreciated.</p>
  
  <p>Regards</p>
  
  <p>Artik</p>