Fetch a String Resource with a different locale from a manually created context

Question

I need to get string-resources of particular locale depending on the language chosen by user. I created the function below for that purpose:

    fun getLocalizedString(requestedLocale: Locale, resourceId: Int, context: Context): String? {
        val newConfig = Configuration(context.resources.configuration)
        newConfig.setLocale(requestedLocale)
        val newContext = context.createConfigurationContext(newConfig)
        Log.d(TAG_NATIVE_LANG, "getLocaleStringResource: check new context: ${newContext.resources.configuration.locale}") // shows locale in newContext
        val newString = newContext.resources.getString(resourceId)
        Log.d(TAG_NATIVE_LANG, "getLocaleStringResource: check new string = $newString") // shows the string we got

        return newString
    }

The problem is this function works but not everytime. I mean that the first tag shows that newContext allways gets the correct locale, however the string returned by function is of right locale in apx 80% cases (even though the newCongif'd got the right locale). I can't figure out why it is so, but I guess it is due to some piculiarities of how Context class works.

Does anyone have some ideas? Thank you in advance.