MyFirebaseInstanceIdService didn't invoked why

Question

I have initiated MyFirebaseInstanseIdService in order to get token, directly i will show you the code :

    @Override
    public void onTokenRefresh() {
        super.onTokenRefresh();
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();


        storeRegIdInPref(refreshedToken);


        sendRegistrationToServer(refreshedToken);


        Intent registrationComplete = new Intent(Config.REGISTRATION_COMPLETE);
        registrationComplete.putExtra("token", refreshedToken);
        LocalBroadcastManager.getInstance(this).sendBroadcast(registrationComplete);
    }

    private void sendRegistrationToServer(final String token) {
        // sending gcm token to server
        Log.e(TAG, "sendRegistrationToServer: " + token);
    }

    private void storeRegIdInPref(String token) {
        SharedPreferences pref = getApplicationContext().getSharedPreferences(Config.SHARED_PREF, 0);
        SharedPreferences.Editor editor = pref.edit();
        editor.putString("regId", token);
        editor.commit();
    }

My manifest.xml :

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

    <service android:name=".services.MyFirebaseInstanceIdService">
        <intent-filter>
            <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
        </intent-filter>
    </service>

I tried to get token via broadCast in my activity also with shared prefrences, but it seems this class didn't invoked.

In my log i see those lines :

D/FirebaseApp: com.google.firebase.auth.FirebaseAuth is not linked. Skipping initialization.
D/FirebaseApp: com.google.firebase.crash.FirebaseCrash is not linked. Skipping initialization.

and this

I/FirebaseInitProvider: FirebaseApp initialization successful

Answer 1

The onTokenRefresh() method only gets called when the current token expires. The current token could expire for the following reasons:

• App deletes Instance ID

• App is restored on a new device

• User uninstalls/reinstall the app

• User clears app data

There's also the scenario where the first time you call getToken(), it might return a null value, from where you should expect onTokenRefresh() to trigger.

With that, you should call getToken() on your initial activity to generate a token.