title: ContentObserver used for SMS
body: <p>I'm trying to extract the sent SMS. I know there is no BroadcastReciver for this. So I've found that I can use ContentObserver to listen changes in the db.</p>
  
  <p>How can I implement this? My objective is to <strong>get only the new sms sent</strong> and send it via POST on the DB</p>
  
  <p>Thanks</p>