问startActivity不工作2

EN

public class question1 {

    private Button Next;

    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstancesState) {
        View view = inflater.inflate(R.layout.question_1, container, false);
        return view;


    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        Next = (Button) rootView.findViewById(R.id.button4);

        Next.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(question1.this, question2.class));
            }
        });
    }
}