Android how to change the application language at runtime

Question

I want to let the user change the language of my application using spinner (or any way). I tried many ways but they change the language of this activity not all activities, and I want to save it so when the user restart the app he will find the last choosed language.

Answer 1

you can use this code in spinner or any way you want

String languageToLoad  = "en"; // your language  Locale locale = new Locale(languageToLoad);   Locale.setDefault(locale);  Configuration config = new Configuration();  config.locale = locale;  getBaseContext().getResources().updateConfiguration(config,   getBaseContext().getResources().getDisplayMetrics()); 

then you should save the language like this

SharedPreferences languagepref = getSharedPreferences("language",MODE_PRIVATE); SharedPreferences.Editor editor = languagepref.edit(); editor.putString("languageToLoad",languageToLoad ); editor.commit();   

and use the same code in every activity in onCreate() to load the languageToLoad from the SharedPreferences