Android actionbar not visible

Question

I am trying to add an option menu in actionbar to my existing app but it is not working. If I create a new project with \"hello world\" default app I can see the button in a

Answer 1

on create of your activity.

getSupportActionBar().setDisplayShowCustomEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(false);
        customNav = LayoutInflater.from(this).inflate(
                R.layout.action_bar_customvieew, null);
        getSupportActionBar().setCustomView(customNav);