onMessageReceived wasn't called with secondary process

[REQUIRED] Step 2: Describe your environment

• Android Studio version: 2020.3.1 patch 2
• Firebase Component: com.google.firebase:firebase-messaging
• Component version: 23.0.3

[REQUIRED] Step 3: Describe the problem

Steps to reproduce:

I found many ANR that related with “Reason: Broadcast of Intent { act=com.google.android.c2dm.intent.RECEIVE flg=0x1000010 pkg=com.redtech.hivisualer cmp=com.redtech.hivisualer/com.google.firebase.iid.FirebaseInstanceIdReceiver (has extras) }” . someone said if set FCM Service to seondary process in the manifest , this ANR will be reduced ,So I try this method ,but onMessageReceived was never called when I push msg to my android device, notification icon was not shown on my phone too.

Relevant Code:

 @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        // TODO(developer): Handle FCM messages here.
        // Not getting messages here? See why this may be: https://goo.gl/39bRNJ
        Log.d(TAG, "From: " + remoteMessage.getFrom());

        // Check if message contains a data payload.
        if (remoteMessage.getData().size() > 0) {
            Log.d(TAG, "Message data payload: " + remoteMessage.getData());
        }

        // Check if message contains a notification payload.
        if (remoteMessage.getNotification() != null) {
            Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
        }
    }

<service
    android:name=".HiVisualerFCMService"
    android:exported="false"
    android:process=":light"
    tools:node="replace">

    <intent-filter android:priority="-500">
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>

<receiver
    android:name="com.google.firebase.iid.FirebaseInstanceIdReceiver"
    android:exported="true"
    android:permission="com.google.android.c2dm.permission.SEND"
    android:process=":light"
    tools:node="replace">

    <intent-filter>
        <action android:name="com.google.android.c2dm.intent.RECEIVE" />
    </intent-filter>
</receiver>

[gsakakihara]

As mentioned, this is not officially supported, but I will note that your app-specific FirebaseMessagingService (HiVisualerFCMService) should probably be using the default priority (nothing specifically set in the manifest) instead of being set at -500 priority.

[argzdev]

Hello @wangjianpeng, thanks for the minimal repro. From what I’ve tested, I’m still experiencing the same issue (I’m not able to receive any notifications) with your app.

I understand that you’re trying to lessen the ANRs in your app, however this type of experimental configuration is not officially documented, hence is not supported.

As to quote from the blog:

There are no official guides or documentation on how to do this and potentially it can be broken at any point in the future.

Unfortunately, there’s not much I can do since I don’t think the current versions of FCM supports this type of setup. That being said, I’ll be closing this now.