How to unregister receiver attached to LocalBroadcastManager?

Question

I tried

unregisterReceiver(broadcastReceiver);

but it gave me an exception

java.lang.IllegalArgumentException: Receiver not registered:

This is my code

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    init();
    locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
    LocalBroadcastManager.getInstance(this).registerReceiver(broadcastReceiverCancelPd, new IntentFilter(PelicanApplication.identifierCancelPd));
    LocalBroadcastManager.getInstance(this).registerReceiver(bReceiverSignOut, new IntentFilter(PelicanApplication.identifierSignOut));
    LocalBroadcastManager.getInstance(this).registerReceiver(bReceiverNearByDeliveries, new IntentFilter(PelicanApplication.identifierNBD));
}


@Override
protected void onStop() {
    super.onStop();
    unregisterReceiver(broadcastReceiverCancelPd);
    unregisterReceiver(bReceiverSignOut);
    unregisterReceiver(bReceiverNearByDeliveries);
}

Mike M. · Accepted Answer · 2015-06-01T05:53:55.460

12

Calling unregisterReceiver() like you are is calling that method on the current Context, rather than the LocalBroadcastManager. You need to call LocalBroadcastManager.getInstance(this).unregisterReceiver();.

edited Jun 01 '15 at 05:53

answered Jun 01 '15 at 05:48

Mike M.

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[LocalBroadcastManager has been deprecated](https://stackoverflow.com/q/61484995/6576302), do you know alternative of `unregisterReceiver()` using `LiveData`? or any? – C.F.G Jan 12 '23 at 15:19
I suppose [`removeObserver()`](https://developer.android.com/reference/androidx/lifecycle/LiveData#removeObserver(androidx.lifecycle.Observer%3C?%20super%20T%3E)) would be the analogous method, but you might not need to worry about it. Have a look at the description for [`observe()`](https://developer.android.com/reference/androidx/lifecycle/LiveData#observe(androidx.lifecycle.LifecycleOwner,androidx.lifecycle.Observer%3C?%20super%20T%3E)), too. – Mike M. Jan 12 '23 at 16:20

score 1 · Answer 2 · answered Jun 01 '15 at 05:52

1

On stop do something like this

LocalBroadcastManager.getInstance(context).unregisterReceiver(this);

answered Jun 01 '15 at 05:52

Srishti Roy

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score 0 · Answer 3 · answered Jun 01 '15 at 05:46

0

Move your unregisterReceiver() functions to onDestroy().

answered Jun 01 '15 at 05:46

siriscac

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score 0 · Answer 4 · answered Jun 01 '15 at 05:57

For an Activity:

In order to register your broadcast receiver from within your app, first, remove the tag from your AndroidManifest.xml file. Then, call registerReceiver(BroadcastReceiver receiver, IntentFilter filter) in your onResume(). Use unregisterReceiver(BroadcastReceiver receiver) in your onPause() to unregister the Broadcast receiver.

For a Service: Remove the receiver tag from the manifest file. You can then register your Broadcast receiver with the same method in the onCreate() and unregister in the onDestroy().

score 0 · Answer 5 · edited Aug 03 '17 at 00:42

0

I think your app crashes on this line:

unregisterReceiver(batteryNotifyReceiver);

If the receiver was not registered or already unregistered, then call to unregisterReceiver() throws IllegalArgumentException. So you have to check if receiver is registered or not before call unregistered.

if (batteryNotifyReceiver!= null) {
                    unregisterReceiver(batteryNotifyReceiver);
                    batteryNotifyReceiver= null;
            }

I hope your problem will be resolved. I solved this error in this way in my application. Give it a try and ping me back.

edited Aug 03 '17 at 00:42

Alexander Abakumov

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answered Jun 01 '15 at 06:29

Md Maidul Islam

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Mike M. solution solved my problem(it was related to LocalBroadcastManager)...but i should follow your advice too.It's better to check if the receiver is not null and then unregister it. – Shehan Ekanayake Jun 01 '15 at 06:35

How to unregister receiver attached to LocalBroadcastManager?

5 Answers5