package com.lixu.kaiyuanxiala;

 import java.util.ArrayList;

 import com.handmark.pulltorefresh.library.PullToRefreshBase;

 import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;

 import com.handmark.pulltorefresh.library.PullToRefreshListView;

 import android.app.Activity;

 import android.os.AsyncTask;

 import android.os.Bundle;

 import android.widget.ArrayAdapter;

 import android.widget.ListView;

 import android.widget.TextView;

 import android.widget.Toast;

 public class MainActivity extends Activity {

     private ArrayList<String> date;

     private int count = 0;

     private ArrayAdapter<String> adapter;

     PullToRefreshListView prl;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

         date = new ArrayList<String>();

         adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, date);

         prl = (PullToRefreshListView) findViewById(R.id.prl);

         prl.setAdapter(adapter);

         TextView tv = new TextView(this);

         tv.setText("想看内容给我拉下来！！");

         prl.setEmptyView(tv);

         // 监控下拉事件 每次下拉执行一次 onRefresh（）。

         prl.setOnRefreshListener(new OnRefreshListener<ListView>() {

             @Override

             public void onRefresh(PullToRefreshBase<ListView> refreshView) {

                 new MyAsync().execute();

             }

         });

     }

     private class MyAsync extends AsyncTask {

         @Override

         protected void onPreExecute() {

             // 开始刷新

             prl.setRefreshing();

         }

         @Override

         protected Object doInBackground(Object... params) {

             return count++;

         }

         @Override

         protected void onPostExecute(Object result) {

             Toast.makeText(getApplicationContext(), "更新成功！", 0).show();

             date.add(0, "" + result);

             // 刷新适配器

             adapter.notifyDataSetChanged();

             // 结束刷新

             prl.onRefreshComplete();

         }

     }

 }

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

     xmlns:tools="http://schemas.android.com/tools"

     android:layout_width="match_parent"

     android:layout_height="match_parent" >

     <com.handmark.pulltorefresh.library.PullToRefreshListView

         android:id="@+id/prl"

         android:layout_width="match_parent"

         android:layout_height="match_parent"

          />

 </RelativeLayout>