title: Android notifications does not disappear after click
body: <p>I have a piece of code on my android studio project:</p>
  
  <pre><code>private void sendNotification(String msg) {
          mNotificationManager = (NotificationManager)
                  this.getSystemService(Context.NOTIFICATION_SERVICE);
  
          PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                  new Intent(this, MainActivity.class), 0);
  
          NotificationCompat.Builder mBuilder =
                  new NotificationCompat.Builder(this)
                          // .setSmallIcon(R.drawable.ic_stat_gcm)
                          .setContentTitle("New updates from StoriesCity!")
                          .setSmallIcon(R.drawable.ic_launcher)
                          .setStyle(new NotificationCompat.BigTextStyle()
                                  .bigText(msg))
                          .setContentText(msg);
  
  
          mBuilder.setContentIntent(contentIntent);
          mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
      }
  </code></pre>
  
  <p>It's working fine and i see the notification, but when i click on it it does not go away..</p>
  
  <p>Maybe it's because i'm using .notify ?
  Please help me modify the code to makeit disapeair on click.</p>
  
  <p>I'm a beginner :)</p>