(1)
IntentFilter filter = new IntentFilter(ACTION_A);
activity.registerReceiver(mReceiver, filter);
filter.addAction(ACTION_B);

(2)
IntentFilter filter = new IntentFilter(ACTION_A);
filter.addAction(ACTION_B);
activity.registerReceiver(mReceiver, filter);

Do (1) and (2) have the same effect? Is ACTION_B really registered in
(1)?

I only find an abstract interface for registerReceiver in Android
Source Code. So I do not know the detailed register strategy.

Thanks for your help.

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