[android] How to refresh activity after changing language (Locale) inside application

This approach will work on all API level device.

1. Use Base Activity for attachBaseContext to set the locale language and extend this activity for all activities

   open class  BaseAppCompactActivity() : AppCompatActivity() {
   
       override fun attachBaseContext(newBase: Context) {
           super.attachBaseContext(LocaleHelper.onAttach(newBase))    
       }
   
       override fun onCreate(savedInstanceState: Bundle?) {
           super.onCreate(savedInstanceState)           
       }
   }
   

2. Use Application attachBaseContext and onConfigurationChanged to set the locale language

   public class MyApplication extends Application {
       private static MyApplication application;
   
       @Override
       public void onCreate() {
           super.onCreate();
       }
   
       public static MyApplication getApplication() {
           return application;
       }
   
       /**
        * overide to change local sothat language can be chnaged from android device  nogaut and above
        */
       @Override
       protected void attachBaseContext(Context base) {
           super.attachBaseContext(LocaleHelper.INSTANCE.onAttach(base));
       }
   
       @Override
       public void onConfigurationChanged(Configuration newConfig) {
           setLanguageFromNewConfig(newConfig);
           super.onConfigurationChanged(newConfig);
       }
   
       /*** also handle chnage  language if  device language chnaged **/
       private void setLanguageFromNewConfig(Configuration newConfig){
           Prefs.putSaveLocaleLanguage(this,  selectedLocaleLanguage );
           LocaleHelper.INSTANCE.onAttach(this);
       }
   

3. Use Locale Helper for handling language changes, this approach work on all device

   object LocaleHelper {
       private var defaultLanguage  :String = KycUtility.KYC_LANGUAGE.ENGLISH.languageCode
   
       fun onAttach(context: Context, defaultLanguage: String): Context {
           return setLocale(context, defaultLanguage)
       }
   
   
   
       fun setLocale(context: Context, language: String): Context {
           return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
               updateResources(context, language)
           } else updateResourcesLegacy(context, language)
   
       }
   
   
       @TargetApi(Build.VERSION_CODES.N)
       private fun updateResources(context: Context, language: String): Context {
           val locale = Locale(language)
           Locale.setDefault(locale)
   
           val configuration = context.getResources().getConfiguration()
           configuration.setLocale(locale)
           configuration.setLayoutDirection(locale)
   
           return context.createConfigurationContext(configuration)
       }
   
       private fun updateResourcesLegacy(context: Context, language: String): Context {
           val locale = Locale(language)
           Locale.setDefault(locale)
   
           val resources = context.getResources()
   
           val 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
       }
   }