How to use Calligraphy with multi-language support Oreo

Question

I\'m developing an app that need to support multiple languages and if the language is RTL I have to apply a custom font. For the requirement I have created my Class that

Answer 1

@Override
protected void attachBaseContext(Context newBase) {
    ContextWrapper localeContextWrapper = LocaleManager.wrap(newBase, "en");
    ContextWrapper calligraphyContextWrapper = CalligraphyContextWrapper.wrap(localeContextWrapper);
    super.attachBaseContext(calligraphyContextWrapper);
}

LocaleManager.java

public class LocaleManager {
    public static ContextWrapper wrap(Context context, String language) {
        Resources res = context.getResources();
        Configuration configuration = res.getConfiguration();
        Locale newLocale = new Locale(language);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            configuration.setLocale(newLocale);
            LocaleList localeList = new LocaleList(newLocale);
            LocaleList.setDefault(localeList);
            configuration.setLocales(localeList);
            context = context.createConfigurationContext(configuration);

        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            configuration.setLocale(newLocale);
            context = context.createConfigurationContext(configuration);

        } else {
            configuration.locale = newLocale;
            res.updateConfiguration(configuration, res.getDisplayMetrics());
        }

        return new ContextWrapper(context);
    }
}