Set up toolbar as actionbar in fragment

Question

I want to set up my toolbar as an actionbar, but since your toolbar is a layoutelement it has to be in your layout. Now my layout is in my fragment.

I added the toolbar

Answer 1

Lets say the Activity holding the fragment is MainActivity.

Do

MainActivity main = (MainActivity)getActivity();
//You can access all public variable and methods of MainActivity.
//simply call 
main.setSupportActionBar(toolbar)
main.getSupportActionBar.setTitle("title");