How can I change language programmatically for fragments?

Issue

I change locale this way.

override fun attachBaseContext(base: Context) {
        super.attachBaseContext(updateResources(base, sessionInteractor.locale))
}

fun updateResources(context: Context, locale: Locale): Context {

        Locale.setDefault(locale)

        val resources = context.resources
        val config = Configuration(resources.configuration)

        config.setLocale(locale)
        return context.createConfigurationContext(config)
}

It's perfect works for activities but doesn't work for fragments.

Solution

You need to refresh the fragment after setting the locale. The language won't change if you don't recreate an Activity, similarly, refresh a Fragment like this:

Fragment frag = null;
frag = getSupportFragmentManager().findFragmentByTag("Your_Fragment_TAG");
final FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.detach(frag);
fragmentTransaction.attach(frag);
fragmentTransaction.commit();

If there's no tag in your fragment, add the following code:

fragmentManager.beginTransaction().replace(R.id.your_id, fragment, "Your_Fragment_TAG").commitAllowingStateLoss();

Answered By - SaadAAkash