Firebase Remote Config fetch doesn't update values from the Cloud

Question

I'm trying to set up Firebase Remote Config for my project. I added Firebase via the Assistant. I added values to the server values on Google Cloud Console:

I've created default values xml in res/xml

<defaultsMap>

<!-- Strings-->
<entry >
    <key>textView_send_text</key>
    <value >your phrase goes here.</value>
</entry>

</defaultsMap>

Thats my MainActivity:

final private FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();

protected void onCreate(Bundle savedInstanceState) {
    //..code..

    //fetch from Firebase
    fetchAll();
}

private void fetchAll(){
     final FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();

    FirebaseRemoteConfigSettings configSettings = new FirebaseRemoteConfigSettings.Builder()
            .setDeveloperModeEnabled(BuildConfig.DEBUG)
            .build();
    mFirebaseRemoteConfig.setConfigSettings(configSettings);

    mFirebaseRemoteConfig.setDefaults(R.xml.defaults);

    mFirebaseRemoteConfig.fetch()
            .addOnCompleteListener(this, new OnCompleteListener<Void>() {
                @Override
                public void onComplete(@NonNull Task<Void> task) {
                    if(task.isSuccessful()){
                        Toast.makeText(MainActivity.this, "Fetch Succeeded",
                                Toast.LENGTH_SHORT).show();

                        mFirebaseRemoteConfig.activateFetched();
                    }else{
                        Toast.makeText(MainActivity.this, "Fetch Failed",
                                Toast.LENGTH_SHORT).show();
                    }

                    displayWelcomeMessage();

                }
            });





}

private void displayWelcomeMessage(){
    String welcomeMessage = mFirebaseRemoteConfig.getString("textView_send_text");

    Toast.makeText(this, welcomeMessage,
            Toast.LENGTH_SHORT).show();
}

Toast output:

So Toast gets the value from xml/defaults not from the Cloud. It'd be much appreciated if somebody found where I made a mistake.

Answer 1

For development testing, specify a cache expiration time of zero to force an immediate fetch:

mFirebaseRemoteConfig.fetch(0) // <- add the zero
        .addOnCompleteListener(this, new OnCompleteListener<Void>() {
            ...
        });