title: Listening for Notification on Android
body: <p>I have some queries when it comes to notification on android programming. I have read up on the notificationmanager, notification and notificationbuilder but it doesn't seem to allow it to listen for notifications.</p>
  
  <p>What I am trying to do is when a notification is send by any application, I will be able to know the contents of it. Is that actually possible and how can it be done?</p>