title: How to get notified when a notification is notified
body: <p>I want to read/access/log the notifications fired on notification bar by other applications. </p>
  
  <p>I searched <code>Intents</code> and <code>PendingIntents</code> a lot, but couldn't get a solution.</p>
  
  <p>Does my application need to be notified when any notification is fired?</p>
  
  <p>Or Does android system provide something to read notifications by the user-level applications?</p>