DialogFragment onClick侦听器不适用于ImageButton

我想我尝试了这里提供的所有内容。我的活动中有ImageButton，但无法将其设置为切换到另一个活动（Log.d显示甚至没有单击它）。

这是我的对话框：

    public class StarsActivity extends DialogFragment implements OnClickListener {

    Dialog dialog;
    Activity mActivity;

    ImageButton nextQuestion;

    final String LOG_TAG = "myLogs";

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.activity_stars, null);

        setCancelable(true);
        return view;
    }

    /** The system calls this only when creating the layout in a dialog. */
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // The only reason you might override this method when using onCreateView() is
        // to modify any dialog characteristics. For example, the dialog includes a
        // title by default, but your custom layout might not need it. So here you can
        // remove the dialog title, but you must call the superclass to get the Dialog.
        dialog = super.onCreateDialog(savedInstanceState);

        //Setting transparency for dialog background
        dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
        dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);

        //No title for dialog
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

        dialog.setContentView(R.layout.activity_stars);
        dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);


        nextQuestion = (ImageButton)dialog.findViewById(R.id.nextQuestion);
        Log.d(LOG_TAG, nextQuestion.toString());
        nextQuestion.setOnClickListener(this);

        mActivity = getActivity();

        return dialog;
    }


    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.nextQuestion:
                Log.d(LOG_TAG, "Dialog 2: ");
                mActivity = getActivity();
                Intent i = new Intent(mActivity, FinalActivity.class);
                mActivity.startActivity(i);
                this.dismiss();
                break;
            default:
                break;
        }
    }
}

这是我的ImageButton xml：

<ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/nextQuestion"
            android:background="@null"
            android:src="@drawable/ic_content_nextbutton_02"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="20dp" />

我希望有办法解决。