Troubles with activity title language

Question

I have two language in my app. values/strings.xml and values-ru/strings.xml When I programmatically change language, all strings translating, b

Answer 1

I have done this in following manner and worked for me.

setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    toolbar.setTitle(resources.getString(R.string.app_name));
    setSupportActionBar(toolbar);

Use this code after changing local configuration.