FirebaseRecyclerAdapter不显示来自notifyDataSetChanged（）的更改

Question

我有一个FirebaseRecyclerAdapter显示对象及其状态的列表。

我单击右侧的箭头，然后打开一个AlertDialog片段，可以在其中更改每个项目的状态（选中/取消选中该项目）。

通过实现DialogFragment的接口，将AlertDialog片段的结果发送回包含recyclerview的活动：

@Override
public void onDialogPositiveClick(Bundle bundle) {

    Hour hour = bundle.getParcelable("hour");

    mDatabase.child(protocolKey).child(String.valueOf(hour.getMilitaryHour())).setValue(hour);
    mProtocolAdapter.notifyDataSetChanged();
}

从Dialog片段返回的数据是正确的-onDialogPositiveClick中的小时对象确实显示了正确的数据以及在DIALOGFRAGMENT中所做的更新。并且数据库中的数据条目已正确更新。但是，notifyDataSetChanged不能正确更新列表及其状态。

我在项目的另一部分也遇到了类似的问题（当前被剥离以隔离当前问题），结果是由于使用侦听器和回收视图而造成的。我猜这是一个类似的实例，但是该解决方案（首先将侦听器设置为null）在这里不起作用。

使用Recyclerview进行的活动：

public class DailyScheduleActivity2 extends AppCompatActivity implements HourlyTaskDialogFragment.HourlyTaskDialogListener  {

    private DatabaseReference mDatabase;
    private RecyclerView mProtocolRv;
    private String protocolKey;
    private ProtocolRecyclerViewAdapter mProtocolAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_daily_schedule);

        protocolKey = "daily/" + FirebaseAuth.getInstance().getCurrentUser().getUid() + "_" + new LocalDate();

        mDatabase = FirebaseDatabase.getInstance().getReference();

        Query query = mDatabase.child(protocolKey);

        FirebaseRecyclerOptions<Hour> options =
                new FirebaseRecyclerOptions.Builder<Hour>()
                        .setQuery(query, Hour.class)
                        .build();


        mProtocolRv = findViewById(R.id.rv_protocol);
        mProtocolRv.setHasFixedSize(false);
        LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
        mProtocolRv.setLayoutManager(mLayoutManager);
        mProtocolAdapter = new ProtocolRecyclerViewAdapter(this, mDatabase, protocolKey, options);
        mProtocolRv.setAdapter(mProtocolAdapter);
    }

    public static class ProtocolRecyclerViewAdapter extends FirebaseRecyclerAdapter<Hour, ProtocolRecyclerViewAdapter.HourHolder> {

        private final DailyScheduleActivity2 mParentActivity;

        ProtocolRecyclerViewAdapter(DailyScheduleActivity2 parent, DatabaseReference db, String protocolKey, FirebaseRecyclerOptions<Hour> options) {
            super(options);
            mParentActivity = parent;
        }

        @NonNull
        @Override
        public HourHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.rv_protocol_row2, parent, false);
            return new HourHolder(view);
        }

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

            holder.mHourCheckBox.setText(currentHour.toString());

            //https://stackoverflow.com/questions/25646048/how-to-convert-local-time-to-am-pm-time-format-using-jodatime
            LocalTime time = new LocalTime(currentHour.getMilitaryHour(), 0);
            DateTimeFormatter fmt = DateTimeFormat.forPattern("h:mm a");
            holder.mHour.setText(fmt.print(time));

            holder.mOpenTasks.setOnClickListener(null);
            holder.mOpenTasks.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View view) {
                    DialogFragment hourlyTasksFragment = new HourlyTaskDialogFragment().newInstance(currentHour);
                    hourlyTasksFragment.show(mParentActivity.getSupportFragmentManager(), "HourlyTasks");
                }
            });
        }

        class HourHolder extends RecyclerView.ViewHolder {

            final TextView mHourCheckBox;
            final ImageView mOpenTasks;
            final TextView mHour;

            HourHolder(View view) {
                super(view);
                mHourCheckBox = (TextView) view.findViewById(R.id.cb_hour_all);
                mOpenTasks = (ImageView) view.findViewById(R.id.open_tasks);
                mHour = (TextView) view.findViewById(R.id.hour);
            }
        }
    }

    @Override
    public void onDialogPositiveClick(Bundle bundle) {

        Hour hour = bundle.getParcelable("hour");

        mDatabase.child(protocolKey).child(String.valueOf(hour.getMilitaryHour())).setValue(hour);
        mProtocolAdapter.notifyDataSetChanged();
    }

    @Override
    protected void onStart() {
        super.onStart();
        mProtocolAdapter.startListening();
    }

    @Override
    protected void onStop() {
        super.onStop();
        mProtocolAdapter.stopListening();
    }
}