<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical" >
 <Button  
   android:id="@+id/bt_load"  
   android:layout_width="fill_parent"  
   android:layout_height="wrap_content" 
   android:text="加载更多数据" /> 
 <ProgressBar
   android:id="@+id/pg"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_gravity="center_horizontal"
   android:visibility="gone"
   />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical" >
  
  <TextView
    android:id="@+id/tv_title"
    android:textSize="20sp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"
    />
  <TextView
    android:textSize="12sp"
    android:id="@+id/tv_content"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"
    />

</LinearLayout>

package com.notice.moredate;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SimpleAdapter;
import android.widget.Toast;

public class MoreDateListActivity extends Activity implements OnScrollListener {
  
  // ListView的Adapter
  private SimpleAdapter mSimpleAdapter;
  private ListView lv;
  private Button bt;
  private ProgressBar pg;
  private ArrayList<HashMap<String,String>> list;
  // ListView底部View
  private View moreView;
  private Handler handler;
  // 设置一个最大的数据条数，超过即不再加载
  private int MaxDateNum;
  // 最后可见条目的索引
  private int lastVisibleIndex;
  
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    
    MaxDateNum = 22; // 设置最大数据条数

    lv = (ListView) findViewById(R.id.lv);

    // 实例化底部布局
    moreView = getLayoutInflater().inflate(R.layout.moredate, null);

    bt = (Button) moreView.findViewById(R.id.bt_load);
    pg = (ProgressBar) moreView.findViewById(R.id.pg);
    handler = new Handler();

    // 用map来装载数据，初始化10条数据
    list = new ArrayList<HashMap<String,String>>();
    for (int i = 0; i < 10; i++) {
      HashMap<String, String> map = new HashMap<String, String>();
      map.put("ItemTitle", "第" + i + "行标题");
      map.put("ItemText", "第" + i + "行内容");
      list.add(map);
    }
    // 实例化SimpleAdapter
    mSimpleAdapter = new SimpleAdapter(this, list, R.layout.item,
        new String[] { "ItemTitle", "ItemText" },
        new int[] { R.id.tv_title, R.id.tv_content });
    // 加上底部View，注意要放在setAdapter方法前
    lv.addFooterView(moreView);
    lv.setAdapter(mSimpleAdapter);
    // 绑定监听器
    lv.setOnScrollListener(this);

    bt.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        pg.setVisibility(View.VISIBLE);// 将进度条可见
        bt.setVisibility(View.GONE);// 按钮不可见

        handler.postDelayed(new Runnable() {

          @Override
          public void run() {
            loadMoreDate();// 加载更多数据
            bt.setVisibility(View.VISIBLE);
            pg.setVisibility(View.GONE);
            mSimpleAdapter.notifyDataSetChanged();// 通知listView刷新数据
          }

        }, 2000);
      }
    });

  }

  private void loadMoreDate() {
    int count = mSimpleAdapter.getCount();
    if (count + 5 < MaxDateNum) {
      // 每次加载5条
      for (int i = count; i < count + 5; i++) {
        HashMap<String, String> map = new HashMap<String, String>();
        map.put("ItemTitle", "新增第" + i + "行标题");
        map.put("ItemText", "新增第" + i + "行内容");
        list.add(map);
      }
    } else {
      // 数据已经不足5条
      for (int i = count; i < MaxDateNum; i++) {
        HashMap<String, String> map = new HashMap<String, String>();
        map.put("ItemTitle", "新增第" + i + "行标题");
        map.put("ItemText", "新增第" + i + "行内容");
        list.add(map);
      }
    }

  }

  @Override
  public void onScroll(AbsListView view, int firstVisibleItem,
      int visibleItemCount, int totalItemCount) {
    // 计算最后可见条目的索引
    lastVisibleIndex = firstVisibleItem + visibleItemCount - 1;

    // 所有的条目已经和最大条数相等，则移除底部的View
    if (totalItemCount == MaxDateNum + 1) {
      lv.removeFooterView(moreView);
      Toast.makeText(this, "数据全部加载完成，没有更多数据！", Toast.LENGTH_LONG).show();
    }

  }

  @Override
  public void onScrollStateChanged(AbsListView view, int scrollState) {
    // 滑到底部后自动加载，判断listview已经停止滚动并且最后可视的条目等于adapter的条目
    if (scrollState == OnScrollListener.SCROLL_STATE_IDLE
        && lastVisibleIndex == mSimpleAdapter.getCount()) {
      // 当滑到底部时自动加载
      // pg.setVisibility(View.VISIBLE);
      // bt.setVisibility(View.GONE);
      // handler.postDelayed(new Runnable() {
      //
      // @Override
      // public void run() {
      // loadMoreDate();
      // bt.setVisibility(View.VISIBLE);
      // pg.setVisibility(View.GONE);
      // mSimpleAdapter.notifyDataSetChanged();
      // }
      //
      // }, 2000);

    }

  }
  
}

new AbsListView.OnScrollListener(){ 
  @Override 
  public void onScrollStateChanged(AbsListView absListView, int scrollState) 
  { 
    switch (scrollState) { 
      case AbsListView.OnScrollListener.SCROLL_STATE_TOUCH_SCROLL: 
        // 手指触屏拉动准备滚动，只触发一次    顺序: 2 
        break; 
      case AbsListView.OnScrollListener.SCROLL_STATE_FLING: 
        // 持续滚动开始，只触发一次        顺序: 4 
        break; 
      case AbsListView.OnScrollListener.SCROLL_STATE_IDLE: 
        // 整个滚动事件结束，只触发一次      顺序: 6 
        break; 
      default: 
        break; 
    } 
  } 
 
  @Override 
  public void onScroll(AbsListView absListView, int i, int i1, int i2) 
  { 
    // 一直在滚动中，多次触发             顺序: 1、3、5 
  } 
}