Supporting Firebase push notifications with v3 of the project

First download the Firebase push module for v3. Import this module into Android Studio.

Next add the following to your App Manifest:

        <service
            android:name="co.chatsdk.firebase_extras.MessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>

        <service
            android:name="co.chatsdk.firebase_extras.InstanceIdService">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
            </intent-filter>
        </service>

Add a dependency to your build.gradle (Module: app) file:

    compile project(':firebase_extras')

Add the following to your AppObj onCreate method:

        FirebasePushModule.activate(new FirebasePushHandler.TokenPusher() {
            @Override
            public void pushToken() {
                BNetworkManager.sharedManager().getNetworkAdapter().pushUser();
            }
        });

Setup Firebase Cloud Messages following this guide.

Finally, open the FirebasePushHandler class and find the pushToChannel method. Replace the serverKey with the value from your Firebase Dashboard -> Project Settings -> Cloud Messaging -> Server Key.

String serverKey = "key=YOURKEY";

Your project is now setup using Firebase for push notifications.