Android не меняет язык строковых ресурсов во фрагменте

У меня есть приложение со строковыми ресурсами для немецкого и английского языков. Я определил отдельный фрагмент для изменения языка, который вы можете увидеть здесь.

public class FR_Options extends Fragment implements View.OnClickListener {



    /*
    String specifying the language of the App
     */

    public static final String LANGUAGE_GERMAN = "German";
    public static final String LANGUAGE_ENGLISH = "English";
    //Set the default language to GERMAN
    public static String currentLanguageOfTheApp = LANGUAGE_ENGLISH;

    public FR_Options() {
        // Required empty public constructor
    }


    public static FR_Options newInstance(String param1, String param2) {
        FR_Options fragment = new FR_Options();

        return fragment;
    }

    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }


    private FragmentOptionsBinding binding;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        binding = FragmentOptionsBinding.inflate(inflater, container, false);
        return binding.getRoot();
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        binding.imageButtonGermany.setOnClickListener(this);
        binding.imageButtonUK.setOnClickListener(this);
        if (currentLanguageOfTheApp.equals(LANGUAGE_ENGLISH)) {
            binding.textViewCurrentLanguageValue.setText(LANGUAGE_ENGLISH);
            binding.imageButtonGermany.setAlpha(0.5f);
            binding.imageButtonUK.setAlpha(1.0f);
        }
        if (currentLanguageOfTheApp.equals(LANGUAGE_GERMAN)) {
            binding.textViewCurrentLanguageValue.setText(LANGUAGE_GERMAN);
            binding.imageButtonGermany.setAlpha(1.0f);
            binding.imageButtonUK.setAlpha(0.5f);
        }

    }


    public void onDestroyView() {
        super.onDestroyView();
        binding = null;
    }

    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
    @Override
    public void onClick(View view) {

        if (view.getId() == R.id.imageButtonGermany) {

             /*
            Set the language to "German" for other fragments and database queries
             */

            this.currentLanguageOfTheApp = LANGUAGE_GERMAN;


            /*
            Set the language to "German" for the XML-layout files
             */



            Locale locale;
            locale = new Locale("de", "DE");

            Configuration config = new Configuration(getActivity().getBaseContext().getResources().getConfiguration());
            Locale.setDefault(locale);
            config.setLocale(locale);
            getActivity().recreate();

            getActivity().getBaseContext().getResources().updateConfiguration(config,
                    getActivity().getBaseContext().getResources().getDisplayMetrics());






        }

        if (view.getId() == R.id.imageButtonUK) {

            /*
            Set the language to "English" for other fragments and database queries
             */

            this.currentLanguageOfTheApp = LANGUAGE_ENGLISH;


            /*
            Set the language to "English" for the XML-layout files
             */


            Locale locale;
            locale = new Locale("en", "EN");

            Configuration config = new Configuration(getActivity().getBaseContext().getResources().getConfiguration());
            Locale.setDefault(locale);
            config.setLocale(locale);
            getActivity().recreate();

            getActivity().getBaseContext().getResources().updateConfiguration(config,
                    getActivity().getBaseContext().getResources().getDisplayMetrics());


        }


    }


}

Теперь, когда я перехожу к тестовому фрагменту, файл Java которого выглядит так

public class Test extends Fragment  {



    int widthDisplay;
    int heightDisplay;


    private FragmentTestBinding binding;

    private ConstraintLayout constraintLayout;
    ConstraintSet constraintSet ;




    private boolean fragmentViewHasBeenCreated = false;


    int helpUpdateCounterProgressBar = 0;//Just for testing

    boolean animationIsWindBladRotating = false;



    private boolean sunIsShiningForImagewViews = false;

    private boolean helpSolarGameRectangleCorrectlyCaughtPreviously = false;

    public Test() {
        // Required empty public constructor
    }


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        binding = FragmentTestBinding.inflate(inflater, container, false);

        WindowManager wm = (WindowManager) getActivity().getWindowManager();
        Display display = wm.getDefaultDisplay();
        Point size = new Point();
        display.getSize(size);
        widthDisplay = size.x;
        heightDisplay = size.y;

        //Test to set the string resources programmatically
        String goalText = getString(R.string.goal);
        String timeText = getString(R.string.time);
        binding.textViewGoal.setText(goalText);
        binding.textView3.setText(timeText);


        container.getContext();
        constraintLayout= binding.constraintLayout;


        fragmentViewHasBeenCreated = true;
        getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        constraintLayout = binding.constraintLayout;
        constraintSet = new ConstraintSet();
        return binding.getRoot();



    }//end onCreateView


    @Override
    public void onDestroyView() {
        super.onDestroyView();

        // Reset your variable to false
        fragmentViewHasBeenCreated = false;

    }
}

с соответствующим файлом макета XML

<?xml version = "1.0" encoding = "utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android = "http://schemas.android.com/apk/res/android"
    xmlns:app = "http://schemas.android.com/apk/res-auto"
    xmlns:tools = "http://schemas.android.com/tools"
    android:id = "@+id/constraintLayout"
    android:layout_width = "match_parent"
    android:layout_height = "match_parent"
    android:background = "@color/white"
    tools:context = ".MainActivity">


    <TextView
        android:id = "@+id/textView_Goal"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:text = "@string/goal"
        android:textSize = "24dp"
        app:layout_constraintBottom_toBottomOf = "parent"
        app:layout_constraintEnd_toEndOf = "parent"
        app:layout_constraintStart_toStartOf = "parent"
        app:layout_constraintTop_toTopOf = "parent" />

    <TextView
        android:id = "@+id/textView3"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:text = "@string/time"
        android:textSize = "24dp"
        app:layout_constraintEnd_toEndOf = "@+id/textView_Goal"
        app:layout_constraintStart_toStartOf = "@+id/textView_Goal"
        app:layout_constraintTop_toBottomOf = "@+id/textView_Goal" />


</androidx.constraintlayout.widget.ConstraintLayout>

Языки строковых ресурсов android:text = "@string/time" и android:text = "@string/goal" никогда не меняются и всегда остаются английскими, которые являются языком по умолчанию.

В папкеvalues/string/strings.xml есть две записи

"    <string name = "goal">Goal</string>
    <string name = "time">Time</string>"

а в папкеvalues/string/strings.mxl(de-rDE) есть две записи "

    <string name = "goal">Ziel</string> 
<string name = "time">Zeit</string>"

тем не менее, язык не меняется в классе Test, независимо от того, что я делаю в классе фрагмента FR_Options.

Обновление: я обнаружил, что при смене языка в классе FR_Options я возвращаюсь к своему классу FR_Menu, который выглядит следующим образом.

public class FR_Menu extends Fragment implements View.OnClickListener{

    private FragmentMenuBinding binding;



    public FR_Menu() {

    }


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        binding = FragmentMenuBinding.inflate(inflater, container, false);
        getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

        binding.buttonGame.setOnClickListener(this);
        binding.buttonOptions.setOnClickListener(this);
        binding.buttonHighscores.setOnClickListener(this);
        binding.buttonFacts.setOnClickListener(this);
        binding.buttonExit.setOnClickListener(this);
        binding.buttonTest.setOnClickListener(this);

        Log.e("LogTag_Menu", "Method onCreateView - this: " + this);
        return binding.getRoot();
    }

    @Override
    public void onClick(View view) {

        if (view.getId() == R.id.button_game) {
            Navigation.findNavController(getView()).navigate(FR_MenuDirections.actionFRMenuToFRGame());
        }

        if (view.getId() == R.id.button_highscores) {
            Navigation.findNavController(getView()).navigate(FR_MenuDirections.actionFRMenuToFRHighScores());
        }

        if (view.getId() == R.id.button_facts) {
            //Navigation.findNavController(getView()).navigate(FR_MenuDirections.actionFRMenuToFRInterestingFacts());
            Navigation.findNavController(getView()).navigate(FR_MenuDirections.actionFRMenuToFRRVLevelSelectionMenu());
        }

        if (view.getId() == R.id.button_options) {
            Navigation.findNavController(getView()).navigate(FR_MenuDirections.actionFRMenuToFROptions());
        }

        if (view.getId() == R.id.button_test) {
            Navigation.findNavController(getView()).navigate(FR_MenuDirections.actionFRMenuToTest());
        }


        if (view.getId() == R.id.button_exit) {
            getActivity().finishAndRemoveTask();
        }

    }
}

язык строковых ресурсов изменен правильно. Однако при переходе из класса FR_Menu в другой класс язык строковых ресурсов снова меняется на язык по умолчанию (английский). Почему это происходит?

Напоминание: есть ли у кого-нибудь идеи, почему это происходит и как решить эту проблему?