Notify activity from service

Question

I\'m trying to start a Service from my Activity to look out for changes on a web page, it\'s a private app so I don\'t bother the battery life...

Answer 1

As Alex indicated, you can bind to the service and pass some sort of listener or callback to the service to use on events.

Or, you can use a broadcast Intent, perhaps using methods like setPackage() on the Intent to limit the scope of the broadcast.

Or, you can use createPendingResult() to create a PendingIntent that you pass as an Intent extra to the service -- the service can then use that PendingIntent to trigger onActivityResult() in your activity.

Or, you can use a ResultReceiver.

Or, you can use a Messenger.

(admittedly, I have not tried those latter two approaches, but I think they will work here)