title: Title and Overflow menu in toolbar
body: <p>How can I add overflow menu without <code>setSupportActionBar</code>(toolbar) because when I'm doing like this overflow menu appears but then <code>toolbar.setTitle("");</code> does not work along with other toolbar methods, and I have to setTitle and other things using <code>getSupportActionBar();</code> </p>
  
  <p>If we have to set all things via actionbar then what is the need of toolbar? </p>