How to setSupportActionBar(toolbar) in Fragment

Question

Wen i add setSupportActionBar(toolbar); in my fragment, its show me this error: Cannot resolve method 'setSupportActionBar(toolbar)'

private DatabaseReference referencia;
private FirebaseAuth autenticacao;

private Toolbar toolbar;
private View view;

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    view = inflater.inflate(R.layout.fragmento_chat, container, false);

    toolbar = view.findViewById(R.id.frag_chat_barra_layout);
    setSupportActionBar(toolbar);

Answer 1

You can set Support ActionBar in Fragment as follow:

((AppCompatActivity)getActivity()).setSupportActionBar(toolbar);

Answer 2

setSupportActionBar method is available only to the Activity class that you inherit.

Hence to solve the problem, do this:

((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);