putExtra using pending intent not working

Question

I have written a code in my GCMIntentservice that sends push notifications to many users. I use the NotificationManager that will call DescriptionActivity class when the notification is clicked. I also send the event_id form the GCMIntentService to the DescriptionActivity

protected void onMessage(Context ctx, Intent intent) {      message = intent.getStringExtra("message");      String tempmsg=message;      if(message.contains("You"))      {         String temparray[]=tempmsg.split("=");         event_id=temparray[1];      }     nm= (NotificationManager)getSystemService(NOTIFICATION_SERVICE);     intent = new Intent(this, DescriptionActivity.class);     Log.i("the event id in the service is",event_id+"");     intent.putExtra("event_id", event_id);     intent.putExtra("gcmevent",true);     PendingIntent pi = PendingIntent.getActivity(this,0, intent, 0);     String title="Event Notifier";     Notification n = new Notification(R.drawable.defaultimage,message,System.currentTimeMillis());     n.setLatestEventInfo(this, title, message, pi);     n.defaults= Notification.DEFAULT_ALL;     nm.notify(uniqueID,n);     sendGCMIntent(ctx, message);  } 

Here the event_id that I'm getting in the above method is correct i.e I always get the updated one. But in the code below (DescriptionActivity.java):

    intent = getIntent();     final Bundle b = intent.getExtras();     event_id = Integer.parseInt(b.getString("event_id")); 

The event_id here is always "5". No matter what I putExtra in the GCMIntentService class,the event_id I get is always 5. Can somebody please point out the problem? Is is because of the pending intent? If yes, then how should I handle it?

Answer 1

The PendingIntent is reused with the first Intent you provided, that's your problem.

To avoid this, use the flag PendingIntent.FLAG_CANCEL_CURRENT when you call PendingIntent.getActivity() to actually get a new one:

PendingIntent pi = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 

Alternatively, if you just want to update the extras, use the flag PendingIntent.FLAG_UPDATE_CURRENT

Answer 2

The PendingIntent is reused with the first Intent you provided, as it was said by Joffrey. You can try use the flag PendingIntent.FLAG_UPDATE_CURRENT.

PendingIntent pi = PendingIntent.getActivity(this,0, intent, PendingIntent.FLAG_UPDATE_CURRENT);