Multilanguage support

In Vaadin 6 there was a nice tutorial about multilanguage support: https://vaadin.com/forum/#!/thread/263330

There was a way to rebuild an entire screen:
app.getViewManager().switchScreen(LoginScreen.class.getName(), new LoginScreen());

Is there something similiar in vaadin 7 with the usage of Navigator? Or how could I achieve multilanguage support.

Regards,
Urban