将RealmList添加到RealmObject后，列表设置为0

Question

我有两个RealmObjects，CompanyInfo和Rooms，其中一个拥有另一个RealmList。在尝试添加到RealmList然后在提交事务后将其添加到RealmObject时，RealmList设置为0并添加到RealmObject作为大小0，因为当我填充Rooms列表时没有显示起来。这是为什么？

CompanyInfo类

public class CompanyInfo extends RealmObject{
    private String Name;
    private String Address;
    private String Contact;
    private String sqFt;
    private String taxed;
    private String concerns;
    private RealmList<Rooms> rooms;

    public RealmList<Rooms> getRooms() {
        return rooms;
    }

    public void setRooms(RealmList<Rooms> rooms) {
        this.rooms = rooms;
    }

    public String getName() {
        return Name;
    }

    public String getAddress() {
        return Address;
    }

    public String getContact() {
        return Contact;
    }

    public String getSqFt() {
        return sqFt;
    }

    public String getTaxed() {
        return taxed;
    }

    public String getConcerns() {
        return concerns;
    }

    public void setName(String coName) {
        this.Name = coName;
    }

    public void setAddress(String coAddress) {
        this.Address = coAddress;
    }

    public void setContact(String coContact) {
        this.Contact = coContact;
    }

    public void setSqFt(String sqFt) {
        this.sqFt = sqFt;
    }

    public void setTaxed(String taxed) {
        this.taxed = taxed;
    }

    public void setConcerns(String concerns) {
        this.concerns = concerns;
    }

}

客房类

public class Rooms extends RealmObject{
    private String Name;
    private RealmList<FixtureInfo> fixtureInfos;

    public RealmList<FixtureInfo> getFixtureInfos() {
        return fixtureInfos;
    }

    public void setFixtureInfos(RealmList<FixtureInfo> fixtureInfos) {
        this.fixtureInfos = fixtureInfos;
    }

    public void setName(String name) {
        Name = name;
    }

    public String getName() {
        return Name;
    }


}

Java文件

public class RoomList extends ActionBarActivity {

    public AlertDialog.Builder dialogBuilder;
    public RealmList<Rooms> myRooms;

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

        populateListView();

        ListView list = (ListView) findViewById(R.id.RoomsList);
        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                switch (position) {
                    default:
                        SaveInfo();
                        Intent i = new Intent(RoomList.this, RoomDescription.class);
                        TextView textItem = (TextView) view;
                        String txtString = textItem.getText().toString();
                        i.putExtra("txtString", txtString);
                        startActivity(i);
                        break;
                }

            }

        });

        Realm realm = Realm.getInstance(this);
        CompanyInfo result = realm.where(CompanyInfo.class).findFirst();
        if (result != null){
            myRooms = result.getRooms();
        }

    }

    @Override
    protected void onResume() {
        super.onResume();
        LoadInfo();
    }

    @Override
    protected void onPause() {
        super.onPause();
        SaveInfo();
    }

    private void setRoomName()
    {
        dialogBuilder = new AlertDialog.Builder(this);
        final EditText txtInput = new EditText(this);
        final  Realm realm = Realm.getInstance(this);


        dialogBuilder.setTitle("New Room");
        dialogBuilder.setMessage("What is the room name?");
        dialogBuilder.setView(txtInput);
        dialogBuilder.setPositiveButton("Add", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                realm.beginTransaction();
                String txtString = txtInput.getText().toString();
                Rooms rooms = realm.createObject(Rooms.class);
                rooms.setName(txtString);
                myRooms.add(rooms);
                realm.commitTransaction();
                realm.close();
                SaveInfo();
                Intent i = new Intent(RoomList.this, RoomDescription.class);
                i.putExtra("txtString", txtString);
                Toast.makeText(getApplicationContext(), "Room has been added.", Toast.LENGTH_SHORT).show();
                populateListView();
                startActivity(i);
            }
        });
        dialogBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                SaveInfo();
            }
        });


        AlertDialog dialogFixtureName = dialogBuilder.create();
        dialogFixtureName.show();
    }

    private void populateListView()
    {
        if (myRooms != null) {
            ArrayAdapter<Rooms> adapter = new ArrayAdapter<Rooms>(this, R.layout.rooms, myRooms);

            ListView list = (ListView) findViewById(R.id.RoomsList);
            list.setAdapter(adapter);

            SaveInfo();
        }
    }

    public void SaveInfo()
    {
        Realm realm = Realm.getInstance(this);
        CompanyInfo companyInfo = realm.where(CompanyInfo.class).findFirst();

        realm.beginTransaction();
        companyInfo.setRooms(myRooms);
        realm.commitTransaction();
        realm.close();
    }

    public void LoadInfo()
    {
        Realm realm = Realm.getInstance(this);
        CompanyInfo companyInfo = realm.where(CompanyInfo.class).findFirst();
        if (companyInfo != null){
            myRooms = companyInfo.getRooms();
        }
        realm.close();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_room_list, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        switch (item.getItemId())
        {
            case R.id.add:
                setRoomName();
                break;
            case R.id.home:
                startActivity(new Intent(getApplicationContext(), MainPage.class));
                break;
        }
        return super.onOptionsItemSelected(item);
    }
}