When to unregister BroadcastReceiver? In onPause(), onDestroy(), or onStop()?

Question

When should I use unregisterReceiver? In onPause(), onDestroy(), or onStop()?

Note: I need the service to run in the backgroun

Answer 1

From the Android documentation:

You should implement onStop() to release activity resources such as a network connection or to unregister broadcast receivers.

Then, I would follow these pairs (using @StinePike's analogy):

onResume - onPause
onStart  - onStop

Because of the Android Lifecycle, and as @w3bshark mentioned:

In post-HoneyComb (3.0+) devices, onStop() is the last guaranteed handler.