语言在API级别24以上未更改

Question

我遇到了有关Android应用中本地化的问题。在版本23以下，我得到很好的结果。在这里，我正在使用2种语言的英语和阿拉伯语。但是高于24版本不显示阿拉伯语语言。在我使用OnAttachedWindow方法后，布局方向已更改。但是语言仍然相同。请帮助我。

这是LocaleHelper类。

public class LocaleHelper {

    private static final String SELECTED_LANGUAGE = "Locale.Helper.Selected.Language";

    public static void onCreate(Context context) {
        String lang = getPersistedData(context, Locale.getDefault().getLanguage());
        setLocale(context, lang);
    }

    public static Context onAttach(Context context, String defaultLanguage) {
        String lang = getPersistedData(context, defaultLanguage);
        setLocale(context, lang);

        return context;
    }


    public static void onCreate(Context context, String defaultLanguage) {
        String lang = getPersistedData(context, defaultLanguage);
        setLocale(context, lang);
    }

    public static String getLanguage(Context context) {
        return getPersistedData(context, Locale.getDefault().getLanguage());
    }

    public static void setLocale(Context context, String language) {
        persist(context, language);


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
             updateResources(context, language);
        }else{
            updateResourcesLegacy(context, language);
        }








    }

    private static String getPersistedData(Context context, String defaultLanguage) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        return preferences.getString(SELECTED_LANGUAGE, defaultLanguage);
    }

    private static void persist(Context context, String language) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = preferences.edit();

        editor.putString(SELECTED_LANGUAGE, language);
        editor.apply();
    }





    @TargetApi(Build.VERSION_CODES.N)
    private static Context updateResources(Context context, String language) {
        Locale locale = new Locale(language);
        Log.d("LocaleHelper", "language above 24: "+language);
        Locale.setDefault(locale);

        Configuration configuration = context.getResources().getConfiguration();
        configuration.setLocale(locale);
        configuration.setLayoutDirection(locale);
        return context.createConfigurationContext(configuration);
    }

    @SuppressWarnings("deprecation")
    private static Context updateResourcesLegacy(Context context, String language) {
        Locale locale = new Locale(language);
        Log.d("LocaleHelper", "language below 24: "+language);
        Locale.setDefault(locale);

        Resources resources = context.getResources();

        Configuration configuration = resources.getConfiguration();
        configuration.locale = locale;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            configuration.setLayoutDirection(locale);
        }
        resources.updateConfiguration(configuration, resources.getDisplayMetrics());

        return context;
    }

















}




Called these 2 Method in My Main Activity Also





    @Override
    public void onAttachedToWindow() {
        super.onAttachedToWindow();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            getWindow().getDecorView().setLayoutDirection(
                    "ar".equals(LocaleHelper.getLanguage(this)) ?
                            View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR);
        }
    }





@Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(LocaleHelper.onAttach(base, "en"));
    }