@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    Log.i(TAG, "1");
    setHasOptionsMenu(true);
    Log.i(TAG, "2");
    View view = inflater.inflate(R.layout.fragment_main_layout, container, false);
    btnNavFragInnovations = (Button) view.findViewById(R.id.button1);
    btnNavFragTraining = (Button) view.findViewById(R.id.button2);
    btnNavFragForms = (Button) view.findViewById(R.id.button3);

    Log.i(TAG, "3");
    btnNavFragInnovations.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            ((MainActivity)getActivity()).setmViewPager(1);
        }
    });

    btnNavFragTraining.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            ((MainActivity)getActivity()).setmViewPager(2);
        }
    });

    btnNavFragForms.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            ((MainActivity)getActivity()).setmViewPager(3);
        }
    });

    return view;
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
    Log.i(TAG, "woohoo");
    menuInflater.inflate(R.menu.top_menu, menu);
    super.onCreateOptionsMenu(menu, menuInflater);
}