参考资料：http://www.cnblogs.com/noTice520/archive/2012/02/10/2345057.html#2458464
效果图：
MAINUI:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffffff"
android:orientation="vertical" >
<ListView
android:id="@+id/listview_bags"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fastScrollEnabled="true"
android:focusable="true"
android:cacheColorHint="#ffffffff" />
</LinearLayout>
LoadUi:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_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>
domain:
View Code
<?xml version="1.0" encoding="UTF-8"?>
<persons>
<person id="1">
<name>huanren</name>
<age>22</age>
</person>
<person id="2">
<name>lixiangmei</name>
<age>21</age>
</person>
<person id="3">
<name>huanren</name>
<age>22</age>
</person>
<person id="4">
<name>huanren</name>
<age>22</age>
</person>
<person id="5">
<name>huanren</name>
<age>22</age>
</person>
<person id="6">
<name>huanren</name>
<age>22</age>
</person>
<person id="7">
<name>huanren</name>
<age>22</age>
</person>
<person id="8">
<name>huanren</name>
<age>22</age>
</person>
<person id="9">
<name>huanren</name>
<age>22</age>
</person>
<person id="10">
<name>huanren</name>
<age>22</age>
</person>
<person id="11">
<name>huanren</name>
<age>22</age>
</person>
<person id="12">
<name>huanren</name>
<age>22</age>
</person>
<person id="13">
<name>huanren</name>
<age>22</age>
</person>
<person id="14">
<name>huanren</name>
<age>22</age>
</person>
<person id="15">
<name>huanren</name>
<age>22</age>
</person>
<person id="16">
<name>huanren</name>
<age>22</age>
</person>
<person id="17">
<name>huanren</name>
<age>22</age>
</person>
<person id="18">
<name>huanren</name>
<age>22</age>
</person>
<person id="19">
<name>huanren</name>
<age>22</age>
</person>
<person id="20">
<name>huanren</name>
<age>22</age>
</person>
<person id="21">
<name>huanren</name>
<age>22</age>
</person>
<person id="22">
<name>huanren</name>
<age>22</age>
</person>
<person id="23">
<name>huanren</name>
<age>22</age>
</person>
<person id="1">
<name>huanren</name>
<age>22</age>
</person>
<person id="2">
<name>lixiangmei</name>
<age>21</age>
</person>
<person id="3">
<name>huanren</name>
<age>22</age>
</person>
<person id="4">
<name>huanren</name>
<age>22</age>
</person>
<person id="5">
<name>huanren</name>
<age>22</age>
</person>
<person id="6">
<name>huanren</name>
<age>22</age>
</person>
<person id="7">
<name>huanren</name>
<age>22</age>
</person>
<person id="8">
<name>huanren</name>
<age>22</age>
</person>
<person id="9">
<name>huanren</name>
<age>22</age>
</person>
<person id="10">
<name>huanren</name>
<age>22</age>
</person>
<person id="11">
<name>huanren</name>
<age>22</age>
</person>
<person id="12">
<name>huanren</name>
<age>22</age>
</person>
<person id="13">
<name>huanren</name>
<age>22</age>
</person>
<person id="14">
<name>huanren</name>
<age>22</age>
</person>
<person id="15">
<name>huanren</name>
<age>22</age>
</person>
<person id="16">
<name>huanren</name>
<age>22</age>
</person>
<person id="17">
<name>huanren</name>
<age>22</age>
</person>
<person id="18">
<name>huanren</name>
<age>22</age>
</person>
<person id="19">
<name>huanren</name>
<age>22</age>
</person>
<person id="20">
<name>huanren</name>
<age>22</age>
</person>
<person id="21">
<name>huanren</name>
<age>22</age>
</person>
<person id="22">
<name>huanren</name>
<age>22</age>
</person>
<person id="23">
<name>huanren</name>
<age>22</age>
</person>
<person id="1">
<name>huanren</name>
<age>22</age>
</person>
<person id="2">
<name>lixiangmei</name>
<age>21</age>
</person>
<person id="3">
<name>huanren</name>
<age>22</age>
</person>
<person id="4">
<name>huanren</name>
<age>22</age>
</person>
<person id="5">
<name>huanren</name>
<age>22</age>
</person>
<person id="6">
<name>huanren</name>
<age>22</age>
</person>
<person id="7">
<name>huanren</name>
<age>22</age>
</person>
<person id="8">
<name>huanren</name>
<age>22</age>
</person>
<person id="9">
<name>huanren</name>
<age>22</age>
</person>
<person id="10">
<name>huanren</name>
<age>22</age>
</person>
<person id="11">
<name>huanren</name>
<age>22</age>
</person>
<person id="12">
<name>huanren</name>
<age>22</age>
</person>
<person id="13">
<name>huanren</name>
<age>22</age>
</person>
<person id="14">
<name>huanren</name>
<age>22</age>
</person>
<person id="15">
<name>huanren</name>
<age>22</age>
</person>
<person id="16">
<name>huanren</name>
<age>22</age>
</person>
<person id="17">
<name>huanren</name>
<age>22</age>
</person>
<person id="18">
<name>huanren</name>
<age>22</age>
</person>
<person id="19">
<name>huanren</name>
<age>22</age>
</person>
<person id="20">
<name>huanren</name>
<age>22</age>
</person>
<person id="21">
<name>huanren</name>
<age>22</age>
</person>
<person id="22">
<name>huanren</name>
<age>22</age>
</person>
<person id="23">
<name>huanren</name>
<age>22</age>
</person>
<person id="1">
<name>huanren</name>
<age>22</age>
</person>
<person id="2">
<name>lixiangmei</name>
<age>21</age>
</person>
<person id="3">
<name>huanren</name>
<age>22</age>
</person>
<person id="4">
<name>huanren</name>
<age>22</age>
</person>
<person id="5">
<name>huanren</name>
<age>22</age>
</person>
<person id="6">
<name>huanren</name>
<age>22</age>
</person>
<person id="7">
<name>huanren</name>
<age>22</age>
</person>
<person id="8">
<name>huanren</name>
<age>22</age>
</person>
<person id="9">
<name>huanren</name>
<age>22</age>
</person>
<person id="10">
<name>huanren</name>
<age>22</age>
</person>
<person id="11">
<name>huanren</name>
<age>22</age>
</person>
<person id="12">
<name>huanren</name>
<age>22</age>
</person>
<person id="13">
<name>huanren</name>
<age>22</age>
</person>
<person id="14">
<name>huanren</name>
<age>22</age>
</person>
<person id="15">
<name>huanren</name>
<age>22</age>
</person>
<person id="16">
<name>huanren</name>
<age>22</age>
</person>
<person id="17">
<name>huanren</name>
<age>22</age>
</person>
<person id="18">
<name>huanren</name>
<age>22</age>
</person>
<person id="19">
<name>huanren</name>
<age>22</age>
</person>
<person id="20">
<name>huanren</name>
<age>22</age>
</person>
<person id="21">
<name>huanren</name>
<age>22</age>
</person>
<person id="22">
<name>huanren</name>
<age>22</age>
</person>
<person id="23">
<name>huanren</name>
<age>22</age>
</person>
<person id="1">
<name>huanren</name>
<age>22</age>
</person>
<person id="2">
<name>lixiangmei</name>
<age>21</age>
</person>
<person id="3">
<name>huanren</name>
<age>22</age>
</person>
<person id="4">
<name>huanren</name>
<age>22</age>
</person>
<person id="5">
<name>huanren</name>
<age>22</age>
</person>
<person id="6">
<name>huanren</name>
<age>22</age>
</person>
<person id="7">
<name>huanren</name>
<age>22</age>
</person>
<person id="8">
<name>huanren</name>
<age>22</age>
</person>
<person id="9">
<name>huanren</name>
<age>22</age>
</person>
<person id="10">
<name>huanren</name>
<age>22</age>
</person>
<person id="11">
<name>huanren</name>
<age>22</age>
</person>
<person id="12">
<name>huanren</name>
<age>22</age>
</person>
<person id="13">
<name>huanren</name>
<age>22</age>
</person>
<person id="14">
<name>huanren</name>
<age>22</age>
</person>
<person id="15">
<name>huanren</name>
<age>22</age>
</person>
<person id="16">
<name>huanren</name>
<age>22</age>
</person>
<person id="17">
<name>huanren</name>
<age>22</age>
</person>
<person id="18">
<name>huanren</name>
<age>22</age>
</person>
<person id="19">
<name>huanren</name>
<age>22</age>
</person>
<person id="20">
<name>huanren</name>
<age>22</age>
</person>
<person id="21">
<name>huanren</name>
<age>22</age>
</person>
<person id="22">
<name>huanren</name>
<age>22</age>
</person>
<person id="23">
<name>huanren</name>
<age>22</age>
</person>
</persons>
java:
/**
*
*/
package com.diamond.util.domain;
/**
* 作用：领域实体类Person
* 创建时间：2012年7月12日15:16:59
* 修改时间：2012年7月12日15:17:03
* @author Hzl520
*/
public class Person {
private Integer id;
private String name;
private Short age;
/**
* @param id
* @param name
* @param age
*/
public Person(Integer id, String name, Short age) {
this.id = id;
this.name = name;
this.age = age;
}
public Person() {}
/**
* @return the id
*/
public Integer getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(Integer id) {
this.id = id;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* @return the age
*/
public Short getAge() {
return age;
}
/**
* @param age the age to set
*/
public void setAge(Short age) {
this.age = age;
}
/*
* 以字符串显示
*/
@Override
public String toString() {
return "Person [id=" + id + ", name=" + name + ", age=" + age + "]";
}
}
解析XML:
/**
*
*/
package com.diamond.util.services;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import android.util.Xml;
import com.diamond.util.domain.Person;
/**
* 作用：Pull解析XML
* 创建时间：2012-7-14 上午10:29:29
* 修改时间：2012-7-14 上午10:29:29
* @author Hzl520
*/
public class PullPersonPaseService {
/**
* 作用：以Pull方式获取XML信息
* 步骤：看注释
* 创建时间：2012-7-14 上午10:31:25
* 修改时间：2012-7-14 上午10:31:25
* @param inputStream
* @return
* @throws Exception
*/
public List<Person> getPersons(InputStream inputStream) throws Exception {
List<Person> persons=null;
Person person=null;
XmlPullParser parser=Xml.newPullParser();
parser.setInput(inputStream, "UTF-8");
//获取解析事件，和SAX类似
int eventType=parser.getEventType();
//使用各个事件解析XML
while(eventType!=XmlPullParser.END_DOCUMENT){
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
//开始遍历节点的时候实例化集合
persons=new ArrayList<Person>();
break;
case XmlPullParser.START_TAG:
String name=parser.getName();
if(name.equals("person")){
person=new Person();
person.setId(new Integer(parser.getAttributeValue(0)));
}
if (person!=null) {
if (name.equals("name")) {
person.setName(parser.nextText());
}
if (name.equals("age")) {
person.setAge(new Short(parser.nextText()));
}
}
break;
case XmlPullParser.END_TAG:
if(parser.getName().equals("person")){
persons.add(person);
person=null;
}
break;
}
//遍历下一个节点
eventType=parser.next();
}
return persons;
}
}
main:
/**
*
*/
package com.diamond.util.widget;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.lang.reflect.Field;
import com.diamond.util.R;
import com.diamond.util.domain.Person;
import com.diamond.util.services.PullPersonPaseService;
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.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import android.graphics.drawable.Drawable;
/**
* 作用： 创建时间：2012-8-28 下午7:32:23 修改时间：2012-8-28 下午7:32:23
*
* @author Hzl520
*/
public class ListViewFoxmlLoadActivity 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;
PullPersonPaseService pullPersonPaseService = null;
/*
* 作用：初始化加载中... 步骤：看注释 创建时间：2012-8-28 下午7:33:06 修改时间：2012-8-28 下午7:33:06
*
* @param savedInstanceState
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listviewfoxmlload);
lv = (ListView) findViewById(R.id.listview_bags);
// 实例化底部布局
moreView = getLayoutInflater().inflate(
R.layout.listviewfoxmlloadmoredata, null);
bt = (Button) moreView.findViewById(R.id.bt_load);
pg = (ProgressBar) moreView.findViewById(R.id.pg);
handler = new Handler();
// 数据处理
list = new ArrayList<HashMap<String, String>>();
pullPersonPaseService = new PullPersonPaseService();
// 使用类加载器获取本地XML的输入流
InputStream inputStream = getClass().getClassLoader()
.getResourceAsStream("com/diamond/util/access/person.xml");
try {
List<Person> persons = pullPersonPaseService
.getPersons(inputStream);
MaxDateNum = persons.size();// 设置最大数据条数
// 用map来装载数据，初始化10条数据
for (Person person : persons) {
if (persons.indexOf(person) < 10) {// 获取XML中Top10的内容
HashMap<String, String> map = new HashMap<String, String>();
map.put("ItemTitle", person.getId().toString());
map.put("ItemText", person.getName().toString());
list.add(map);
} else {
continue;
}
}
} catch (Exception e) {
e.printStackTrace();
}
// 实例化SimpleAdapter
mSimpleAdapter = new SimpleAdapter(this, list,
R.layout.listviewfoxmlloadmapitem, 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.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
ListView listView = (ListView) parent;
HashMap<String, Object> itemmap = (HashMap<String, Object>) listView
.getItemAtPosition(position);
String title = itemmap.get("ItemTitle").toString();
Toast.makeText(getApplicationContext(), title, 1).show();
}
});
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);
}
});
}
/**
* 作用： 步骤：看注释 创建时间：2012-8-28 下午8:31:52 修改时间：2012-8-28 下午8:31:52
*/
private void loadMoreDate() {
int count = mSimpleAdapter.getCount();// 列表加载的当前数据的长度
pullPersonPaseService = new PullPersonPaseService();
// 使用类加载器获取本地XML的输入流
InputStream inputStream = getClass().getClassLoader().getResourceAsStream("com/diamond/util/access/person.xml");
try {
List<Person> persons = pullPersonPaseService
.getPersons(inputStream);
if (count + 5 < MaxDateNum) {
// 每次加载5条
for (Person person : persons) {
if (persons.indexOf(person) >= count
&& persons.indexOf(person) < count + 5) {
HashMap<String, String> map = new HashMap<String, String>();
map.put("ItemTitle", person.getId().toString());
map.put("ItemText", person.getName().toString());
list.add(map);
} else {
continue;
}
}
} else {
// 数据已经不足5条
for (Person person : persons) {
if (persons.indexOf(person) >= count
&& persons.indexOf(person) < MaxDateNum) {
HashMap<String, String> map = new HashMap<String, String>();
map.put("ItemTitle", person.getId().toString());
map.put("ItemText", person.getName().toString());
list.add(map);
} else {
continue;
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/*
* 作用： 步骤：看注释 创建时间：2012-8-28 下午7:32:23 修改时间：2012-8-28 下午7:32:23
*
* @param view
*
* @param scrollState
*/
@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);
}
}
/*
* 作用： 步骤：看注释 创建时间：2012-8-28 下午7:32:23 修改时间：2012-8-28 下午7:32:23
*
* @param view
*
* @param firstVisibleItem
*
* @param visibleItemCount
*
* @param totalItemCount
*/
@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) {
bt.setText("数据全部加载完成，没有更多数据！");
}
}
}
