Butter Knife @bind in Fragment Attempt to invoke virtual method

Question

After the problems were resolved. (enter link description here)

I found a new problem attempt to invoke virtual method.

error : java.lang.RuntimeException: Unable to start activity ComponentInfo: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

But if the ImageButton btnNext = (ImageButton) view.findViewById(R.id.btnNext); It work.

public class OneFragment extends Fragment {
    @Bind(R.id.btnNext) ImageButton btnNext;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_one, container, false);
        ButterKnife.bind(getActivity(), view);

        btnNext.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });

        return view;
    }
}

Answer 1

You're supposed to be binding the fragment not the activity.

ButterKnife.bind(this, view);