<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"

    tools:context=".MainActivity"

    android:background="#000000"

    >

    <ListView

    android:id="@+id/listveiw"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    ></ListView>

</RelativeLayout>

package com.bawei.day05_onscrolllistener;

import java.util.ArrayList;

import java.util.List;

import android.os.Bundle;

import android.app.Activity;

import android.util.Log;

import android.view.Menu;

import android.view.View;

import android.widget.AbsListView;

import android.widget.AbsListView.OnScrollListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

public class MainActivity extends Activity implements OnScrollListener{

    private ListView listView;

    private List<String> list;

    //是否需要加载更多

    private boolean isLoad = false;

    int count = 1;

    private ArrayAdapter<String> adapter;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        listView = (ListView) findViewById(R.id.listveiw);

        list = new ArrayList<String>();

        //赋值

        getData();

        //适配

        adapter = new ArrayAdapter<String>(getApplicationContext(),android.R.layout.simple_expandable_list_item_1,list);

        listView.setAdapter(adapter);

        //监听

          listView.setOnScrollListener(this);

    }

   //赋值

    private void getData() {

        for (int i = 0; i <30; i++) {

            list.add(i+"");

        }

    }

    public void onScroll(AbsListView view, int firstVisibleItem,

            int visibleItemCount, int totalItemCount) {

        // TODO Auto-generated method stub

        Log.i("TAG", "firstVisibleItem="+firstVisibleItem);

        Log.i("TAG", "visibleItemCount="+visibleItemCount);

        Log.i("TAG", "totalItemCount="+totalItemCount);

        //isLoad为是否滚动到底部

        isLoad = ((firstVisibleItem+visibleItemCount)==totalItemCount);

    }

    /* (non-Javadoc)

     *

     * SCROLL_STATE_FLING 手指做出抛的动作

     * SCROLL_STATE_IDLE 停止滚动

     * SCROLL_STATE_TOUCH_SCROLL 手指在屏幕上，屏幕滚动

     * @see android.widget.AbsListView.OnScrollListener#onScrollStateChanged(android.widget.AbsListView, int)

     */

    public void onScrollStateChanged(AbsListView view, int scrollState) {

        // TODO Auto-generated method stub

        Log.i("TAG", "onScrollStateChanged  isLoad="+isLoad+";是否是停止滚动："+(scrollState==OnScrollListener.SCROLL_STATE_IDLE));

        Log.i("TAG", "scrollState"+scrollState);

        //当ListView滚动到底部，并且ListView停止滚动

        //isLoad为是否滚动到底部

        //scrollState为当前状态有三种 ，不断变化，只有当他停止滚动才加载数据

        if(isLoad&&scrollState==OnScrollListener.SCROLL_STATE_IDLE){

            Toast.makeText(getApplicationContext(), "开始加载数据", 1).show();

             //得到当前显示个数

            int id=adapter.getCount();

            //加载数据

            for (int i = id; i < id+10; i++) {

            list.add("加载第"+count+"次："+i)    ;

            }

            //加载了几次

            count++;

            //刷新

            adapter.notifyDataSetChanged();

        }

    }

}