Recyclerview不显示firstTime项目

Question

我在应用程序中具有Recycler视图，在导航抽屉中使用Recycler视图意味着片段 当reyclerview为空，并且当我在回收站视图中添加项目但未显示但刷新片段后，添加项目之后，则立即显示但第一次不显示原因。我被困住了。

这是我的代码：

     @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable final ViewGroup container, @Nullable Bundle savedInstanceState) {
        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        v = inflater.inflate(R.layout.activity_consultant_note_fragment, container, false);
        mSp = getActivity().getSharedPreferences(Constant.PREF, Context.MODE_PRIVATE);
        consulatantnoterecyclerView = v.findViewById(R.id.consulatantnote_display_recycler);
        swipeRefreshLayout = v.findViewById(R.id.swipeContainer);

        nodatafound = v.findViewById(R.id.nodatafound);
        // GetConsulatantNote();
        RecyclerView.LayoutManager manager = new LinearLayoutManager(getActivity());
        consulatantnoterecyclerView.setLayoutManager(manager);
        consulatantnoterecyclerView.setItemAnimator(new DefaultItemAnimator());

       return v;
    }

     void GetConsulatantNote() {
        dialog = new ProgressDialog(getActivity());
        dialog.show();
        if (!Utils.isInternetAvailable(getActivity(), true))
            return;

        final ApiInterface apiInterface = ApiClient.getClient().create(ApiInterface.class);

        ConsultantNote request = new ConsultantNote();
        request.setActionBy(Integer.valueOf(mSp.getString(Constant.ActionBy, "")));
        request.setInPatientID(Integer.valueOf(mSp.getString(Constant.InPatientID, "")));
        request.setToken(mSp.getString(Constant.TOKEN, ""));
        request.setCreatedBy(Integer.valueOf(mSp.getString(Constant.MasterUserID, "")));
        request.setIsActive(1);


        ServiceRequest serviceRequest = new ServiceRequest();
        serviceRequest.setOppID(**);
        serviceRequest.setParameters(request);

        Call<ConsultantNoteResponse> consultantNoteResponseCall = apiInterface.SaveConsulatantNote(serviceRequest);
        consultantNoteResponseCall.enqueue(new Callback<ConsultantNoteResponse>() {
            @Override
            public void onResponse(Call<ConsultantNoteResponse> call, Response<ConsultantNoteResponse> response) {

                if (response.body().getSuccess() == true && response.body().getValidated() == false) {
                    if (!response.body().getValidationErrors().isEmpty()) {
                        Nodatafound = true;
                        List<ValidationError> validationErrors = response.body().getValidationErrors();
                        for (int i = 0; i < validationErrors.size(); i++) {
                            ValidationError error = new ValidationError();
                            error.setErrorMessage(validationErrors.get(i).getErrorMessage());
                            Log.d("error", "" + validationErrors.get(i).getErrorMessage());
                        }
                        // Toast.makeText(DoctorCollection.this, "Records not found for opd", Toast.LENGTH_SHORT).show();
                    }
                    dialog.dismiss();
                }
                if (response.body().getSuccess() == true && response.body().getValidated() == true) {
                    //data
                    consultantNotes = new ArrayList<>();
                    consultantNotes.clear();
                    List<ConsultantNote> notes = response.body().getConsultantNotes();
                    consulatantnoterecyclerView.setVisibility(View.VISIBLE);
                    nodatafound.setVisibility(View.GONE);
                    for (int i = 0; i < notes.size(); i++) {

                        ConsultantNote note = new ConsultantNote();

                        note.setCreatedByUserFullName(notes.get(i).getCreatedByUserFullName());
                        note.setConsultantNotesDateTime(notes.get(i).getConsultantNotesDateTime());
                        note.setPatientProgress(notes.get(i).getPatientProgress());
                        note.setCreatedBy(notes.get(i).getCreatedBy());
                        note.setInPatientConsultantNoteID(notes.get(i).getInPatientConsultantNoteID());
                        note.setProblemsAndInterventions(notes.get(i).getProblemsAndInterventions());

                        consultantNotes.add(note);
                    }


                    //consulatantnoterecyclerView.setAdapter(consultantNoteAdpater);

                    setAdapterData(consultantNotes);
                    onItemDelete();
                    if (dialog.isShowing()) {
                        dialog.dismiss();
                    }
                }
                if (Nodatafound) {
                    consulatantnoterecyclerView.setVisibility(View.GONE);
                    nodatafound.setVisibility(View.VISIBLE);
                }

            }

            @Override
            public void onFailure(Call<ConsultantNoteResponse> call, Throwable t) {

            }
        });

        dialog.dismiss();
    }


  void onItemDelete() {

    final ConsultantNoteAdpater noteAdpater = new ConsultantNoteAdpater(context, consultantNotes);
    consulatantnoterecyclerView.setAdapter(noteAdpater);

    noteAdpater.setOnItemDeleteClickListener(new ConsultantNoteAdpater.OnItemClickDeleteListener() {
        @Override
        public void onItemClick(final int position, final Integer NoteId) {
            final AlertDialog.Builder innermsg = new AlertDialog.Builder(context);
            innermsg.setMessage("Are you sure you want to delete this consultant note ?");
            innermsg.setCancelable(false);
            innermsg.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                    consultantNotes.remove(position);
                    noteAdpater.notifyItemRemoved(position);
                    noteAdpater.notifyItemRangeChanged(position, consultantNotes.size());
                    DeleteConsulatantNote(NoteId);
                    noteAdpater.notifyDataSetChanged();
                    GetConsulatantNote();
                }
            });
            innermsg.setNegativeButton("cancle", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                }
            });
            innermsg.show();
        }


    });

}

private void setAdapterData(List<ConsultantNote> data) {
    if (data != null) {
        ArrayList<ConsultantNote> notes = new ArrayList<>();
        notes.clear();
        notes.addAll(consultantNotes);

        adapter = new ConsultantNoteAdpater(getActivity(), notes);
        adapter.notifyItemRangeChanged(0, consultantNotes.size());
        // adapter.notifyDataSetChanged();
        consulatantnoterecyclerView.setAdapter(adapter);


    }
}

这是我的recyclerview-适配器代码：

public class ConsultantNoteAdpater extends RecyclerView.Adapter<ConsultantNoteAdpater.holder> {


LayoutInflater layoutInflater;
Context context;
List<ConsultantNote> consultantNotes;
private SharedPreferences mSp;
public OnItemClickDeleteListener onItemClickDeleteListener;

public ConsultantNoteAdpater(Context c, List<ConsultantNote> notes) {
    context = c;
    consultantNotes = notes;
    notifyDataSetChanged();
}

@NonNull
@Override
public holder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View v = layoutInflater.inflate(R.layout.activity_consultant_note_adpater, parent, false);
    mSp = context.getSharedPreferences(Constant.PREF, Context.MODE_PRIVATE);
    return new holder(v);
}

public interface OnItemClickDeleteListener {
    void onItemClick(int position, Integer NoteId);
}

public void setOnItemDeleteClickListener(OnItemClickDeleteListener onItemClickDeleteListener) {
    this.onItemClickDeleteListener = onItemClickDeleteListener;
}

@Override
public void onBindViewHolder(@NonNull holder holder, final int position) {

    final ConsultantNote note = consultantNotes.get(position);


    holder.createdby.setText(Html.fromHtml(createdby + "" + note.getCreatedByUserFullName()));


    holder.delete.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (onItemClickDeleteListener != null) {
                //get pateint consulatant note id
                onItemClickDeleteListener.onItemClick(position, note.getInPatientConsultantNoteID());
            }
        }
    });

}


@Override
public int getItemCount() {
    return consultantNotes.size();
}



class holder extends RecyclerView.ViewHolder {

    TextView date, createdby;
    ImageView delete;

    public holder(View itemView) {
        super(itemView);

        date = itemView.findViewById(R.id.consulatant_datetime);
        createdby = itemView.findViewById(R.id.consulatant_createdby);
        delete = itemView.findViewById(R.id.deleteconsultant);
    }
  }
}

我正在使用翻新从api获取数据，以便任何人都可以帮忙！

提前谢谢！