I have firebase google-services.json file, the package names are different, one build configuration work & the other no! because json file doesn't match second package name.
You can copy the content of the FirebaseAnalytics library (the file Firebase.b4x_excluded) and add them in case of the Macro to your App.
#if app1
CreateResourceFromFile("google-services", "google-services.json")
#end if
#if app2
CreateResourceFromFile("google-services", "google-services-app2.json")
#end if
AddPermission(android.permission.ACCESS_NETWORK_STATE)
AddPermission(android.permission.INTERNET)
AddPermission(android.permission.WAKE_LOCK)
AddPermission(com.google.android.c2dm.permission.RECEIVE)
AddPermission(${applicationId}.permission.C2D_MESSAGE)
AddPermission(com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE)
AddManifestText( <permission android:name="${applicationId}.permission.C2D_MESSAGE"
android:protectionLevel="signature" />)
AddApplicationText(
<receiver
android:name="com.google.android.gms.measurement.AppMeasurementReceiver"
android:enabled="true"
android:exported="false" >
</receiver>
<service
android:name="com.google.android.gms.measurement.AppMeasurementService"
android:enabled="true"
android:exported="false" />
<receiver
android:name="com.google.android.gms.measurement.AppMeasurementInstallReferrerReceiver"
android:enabled="true"
android:exported="true"
android:permission="android.permission.INSTALL_PACKAGES" >
<intent-filter>
<action android:name="com.android.vending.INSTALL_REFERRER" />
</intent-filter>
</receiver>
<service
android:name="com.google.android.gms.measurement.AppMeasurementJobService"
android:enabled="true"
android:exported="false"
android:permission="android.permission.BIND_JOB_SERVICE" />
<service android:name="com.google.firebase.components.ComponentDiscoveryService" >
<meta-data
android:name="com.google.firebase.components:com.google.firebase.analytics.connector.internal.AnalyticsConnectorRegistrar"
android:value="com.google.firebase.components.ComponentRegistrar" />
<meta-data
android:name="com.google.firebase.components:com.google.firebase.iid.Registrar"
android:value="com.google.firebase.components.ComponentRegistrar" />
<meta-data
android:name="com.google.firebase.components:com.google.firebase.auth.FirebaseAuthRegistrar"
android:value="com.google.firebase.components.ComponentRegistrar" />
<meta-data
android:name="com.google.firebase.components:com.google.firebase.storage.StorageRegistrar"
android:value="com.google.firebase.components.ComponentRegistrar" />
<meta-data
android:name="com.google.firebase.components:com.google.firebase.firestore.FirestoreRegistrar"
android:value="com.google.firebase.components.ComponentRegistrar"/>
<meta-data
android:name="com.google.firebase.components:com.google.firebase.database.DatabaseRegistrar"
android:value="com.google.firebase.components.ComponentRegistrar"/>
</service>
<provider
android:authorities="${applicationId}.firebaseinitprovider"
android:name="com.google.firebase.provider.FirebaseInitProvider"
android:exported="false"
android:initOrder="100" />
<receiver
android:name="com.google.firebase.iid.FirebaseInstanceIdReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="${applicationId}" />
</intent-filter>
</receiver>
<receiver
android:name="com.google.firebase.iid.FirebaseInstanceIdInternalReceiver"
android:exported="false" />
<service
android:name="com.google.firebase.iid.FirebaseInstanceIdService"
android:exported="true">
<intent-filter android:priority="-500">
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
)
You can add conditional compiling line around the CreateResourceFromFile line to support different json files. I did it in the code above already.
Another solution would be to have the different packagenames in ONE Firebase project. This is what i am doing.
For my tests i am using a lot of packagenames for different firebase projects i have. But all of them are Grouped in ONE Firebaseproject. So, now when i download a json file from Firebase console i get one json file with all the different packagenames i have in this Firebaseproject.
The json file contains all infos about all apps and i do not need to use the solution above.