Android Studio Spinner对点击没有反应

Question

我的片段中有Spinner但是当我点击微调器时，我没有得到实际的下拉列表来显示

这是我的Spinner

的java

 private void createCommissionDropDownList(){
    ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_item, mReportViewModel.getCommissionNames());
    arrayAdapter.setDropDownViewResource(R.layout.spinner_my_spinner_item);
    Spinner spinner = (Spinner) mBaseLayout.findViewById(R.id.commissionSpinner);
    spinner.setVisibility(View.VISIBLE);
    spinner.setAdapter(arrayAdapter);

    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            int itemId = (int) id;

               if(itemId == 0) {
                   Toast.makeText(getContext(), mReportViewModel.getCommissionNames().size() + "", Toast.LENGTH_LONG).show();
               }

        }
        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });
}

这是Spinner

的xml

     <Spinner
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:id="@+id/commissionSpinner"
        android:visibility="gone"
        android:background="@color/colorPrimary"/>

下图显示了它的外观

黄色是实际的微调器，但它不会响应我的点击次数

我调用我的方法在我的onCreateView中创建微调器，如下所示。 我已经记录并制作了祝酒词，以确保它也被调用。

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

    mBaseLayout = (PercentRelativeLayout) inflater.inflate(R.layout.fragment_report, container, false);
    mShift = getActivity().getIntent().getParcelableExtra("shift");


    if(mShift.getDate().isAfter(DateAndTime.getDateToday())) {
        displayCantReportReason("Du kan inte tidsrapportera ett pass som är i framtiden");
    } else {


        if (mShift.isNewShift()) {
            mReportViewModel = new ReportViewModel(null, null, new DataLoaderCallback() {
                @Override
                public void onDataLoaded() {
                    createForm();
                }
            });
        } else {
            mReportViewModel = new ReportViewModel(mShift.getCommissionId(), mShift.getDate(), new DataLoaderCallback() {
                @Override
                public void onDataLoaded() {
                    createForm();
                }
            });
        }

    }

    return mBaseLayout;
}

public void createForm() {


    if(mShift.isNewShift()){
        createCommissionDropDownList();
    }
    else {

    }
}