Question

I have to do a task multiple times, and task is to broadcast an intent which will be intercepted by a different app. Lets say from App Sender to Receiver.
Receiving the intent in Receiver app is working fine, I have tested and guaranteed:

How I am doing this is,
I created a broadcast receiver in Sender app, with action SENDER_ACTION.
I create an intent with this action, set an extra with key frequency and value 4.
Get a PendingIntent from this and set an alarm of 10 sec, and fires this intent.

Idea is that sender app, will receive this intent, will fire the required intent to RECEIVER app, and then decreases the frequency value by 1, set it again to the intent, creates a pending intent and alarm and fires again.

So, ideally this counter of frequency should reach to 0 and process should terminate.

I can see that while setting the decreased value of frequency, it is happening (in logs), but when I receive its the same unchanged value.

I suspect that pending intent instance is kept on fired again and again.
Can some body please help me why is this happening?

Answer 1

If I had to guess — which I do, since you provided no source code — it is because you have not passed the right flags into getBroadcast() (or whatever factory method that you are using on PendingIntent to obtain the PendingIntent instance). Please bear in mind that Android caches PendingIntent objects and will reuse them, with their internal Intent extras unmodified, by default. Consider passing FLAG_UPDATE_CURRENT as the last parameter to getBroadcast().