在recyclerview中更新数据

Question

我正在开发一个项目，用户在运行时将数据输入数据库，recyclelerview应该从数据库中获取数据。最初，在用户输入数据之前，recyclerview将为空。但问题是当用户输入数据时第一项是recyclerview正在更新并显示第一项。但是当用户输入第二项时，recyclerview没有更新它只显示第一项。

我的活力：

public class Add_Details extends AppCompatActivity {

    TextView personname,personmobile,Date;
    long id;
    RecyclerView recyclerView;
    EditText detailName,detailAmount;
    DatabaseHandler databaseHandler;
    AddDetails_adapter adapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_add_details);
        databaseHandler = new DatabaseHandler(this);
        detailName = (EditText)findViewById(R.id.Detail_name);
        detailAmount = (EditText)findViewById(R.id.Detail_Amount);
        Toolbar toolbar = (Toolbar)findViewById(R.id.adddetail_toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setTitle(Html.fromHtml("<font color='#FFFFFF'>Add Details </font>"));
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        personname = (TextView)findViewById(R.id.Detail_personName);
        personmobile = (TextView)findViewById(R.id.Detail_personMobile);
        Date = (TextView)findViewById(R.id.adddetail_date);
        Intent received = getIntent();
        String pername = received.getExtras().getString("Name");
        String permobile = received.getExtras().getString("Mobile");
        id = received.getExtras().getLong("Id");
        String date = getDate();
        personname.setText(pername);
        personmobile.setText(permobile);
        Date.setText(date);            
        recyclerView = (RecyclerView)findViewById(R.id.adddetails_listView);
        upDateListview();
    }

更新Listview方法

 public void upDateListview()
    {
        if (getDetails()!= null)
        {
            List<Details> pdetailslist = getDetails();
            adapter = new AddDetails_adapter(pdetailslist,this);
            recyclerView.setAdapter(adapter);
            recyclerView.setLayoutManager(new LinearLayoutManager(this));
        }
    }

添加详细信息方法：此方法在用户输入数据后执行

public void addDetails(View view)
    {
        if (!detailName.getText().equals(null)||!detailAmount.getText().equals(null))
        {
            String name = detailName.getText().toString();
            String amount = detailAmount.getText().toString();
            String date = Date.getText().toString();
            Details details = new Details(name,amount,date);
            databaseHandler.addDetail(details,id);
            adapter.notifyDataSetChanged();
            upDateListview();
        }
        detailName.getText().clear();
        detailAmount.getText().clear();
        detailName.requestFocus();
    }

getDetails方法

 public List<Details> getDetails()
    {
        if (databaseHandler.getDetails(id)!= null)
        {
            List<Details> list = databaseHandler.getDetails(id);
            return list;
        }
        return null;
    }

getDate方法：

  public String getDate()
    {
        Calendar calendar = Calendar.getInstance();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEE,dd-MMM-yyyy");
        String date = simpleDateFormat.format(calendar.getTime());
        return date;
    }

我的适配器类

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.Collections;
import java.util.List;

/**
 * Created by mrudu on 08-05-2016.
 */
public class AddDetails_adapter extends RecyclerView.Adapter<AddDetails_adapter.View_holder>
{
    List<Details> list = Collections.emptyList();
    Context context;

    public AddDetails_adapter(List<Details> list, Context context) {
        this.list = list;
        this.context = context;
    }

    @Override
    public AddDetails_adapter.View_holder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.add_detail_row,parent,false);
        View_holder view_holder = new View_holder(view);
        return view_holder;
    }

    @Override
    public void onBindViewHolder(AddDetails_adapter.View_holder holder, int position)
    {
        holder.nametext.setText(list.get(position).getName());
        holder.amounttext.setText(list.get(position).getAmount());
        holder.dateText.setText(list.get(position).getDate());
    }

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

    public class View_holder extends RecyclerView.ViewHolder
    {
        TextView nametext,amounttext,dateText;
        public View_holder(View itemView)
        {
            super(itemView);
            nametext = (TextView)itemView.findViewById(R.id.adddetailRowname);
            amounttext = (TextView)itemView.findViewById(R.id.adddetailRowAmount);
            dateText = (TextView)itemView.findViewById(R.id.adddetailRowDate);
        }
    }
}

添加详细信息方法：

  public void addDetail(Details details,long id)
    {
        SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(DetaiInfo_Name,details.getName());
        values.put(DetailInfo_Amount,Double.parseDouble(details.getAmount()));
        values.put(DetailInfo_Date,details.getDate());
        values.put(DetailInfo_PId,id);
        sqLiteDatabase.insert(Detailinfo_TableName,null,values);
        sqLiteDatabase.close();
    }

比你......