首先 下载 Android-PullToRefresh-master
下载地址 https://github.com/chrisbanes/Android-PullToRefresh
下载之后将其解压
现在 我们用eclipse 创建一个项目取名PullToRefresh
将上面的library 引入我们的项目
引入成功之后打开项目的project.properties文件我们可以看到
android.library.reference.1=../Android-PullToRefresh-master/library
这样就表示可以引用成功了
我们在res/layout创建 布局文件main.xml
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01.<?xml
version="1.0" encoding="utf-8"?>
02.<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
03.android:layout_width="match_parent"
04.android:layout_height="match_parent"
05.android:background="#FFFFFF"
06.android:orientation="vertical" >
08.<!--
xmlns:ptr = "http://schemas.android.com/apk/res-auto" 为我们要使用PullToRefresh
里面一些属性需要引的命名空间 -->
09.<com.handmark.pulltorefresh.library.PullToRefreshListView
10.xmlns:ptr
= "http://schemas.android.com/apk/res-auto"
11.android:id="@+id/pull_refresh_list"
12.android:layout_width="fill_parent"
13.android:layout_height="fill_parent"
14.android:dividerHeight="4dp"
15.android:fadingEdge="none"
16.android:fastScrollEnabled="false"
17.android:footerDividersEnabled="false"
18.android:headerDividersEnabled="false"
19.android:smoothScrollbar="true"
20.ptr:ptrMode="both"
21./>
22.</LinearLayout>
接着创建 MainActivity.java
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001.package com.pulltorefresh;
003.import java.util.Arrays;
004.import java.util.LinkedList;
006.import android.app.Activity;
007.import android.os.AsyncTask;
008.import android.os.Bundle;
009.import android.widget.ArrayAdapter;
010.import android.widget.ListView;
011.import android.widget.Toast;
013.import com.handmark.pulltorefresh.library.PullToRefreshBase;
014.import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
015.import com.handmark.pulltorefresh.library.PullToRefreshBase.State;
016.import com.handmark.pulltorefresh.library.PullToRefreshListView;
017.import com.handmark.pulltorefresh.library.extras.SoundPullEventListener;
021.public class MainActivity extends Activity
{
024.static final int MENU_MANUAL_REFRESH
= 0;
025.static final int MENU_DISABLE_SCROLL
= 1;
026.static final int MENU_SET_MODE
= 2;
027.static final int MENU_DEMO
= 3;
029.private LinkedList<String>
mListItems;
030.private PullToRefreshListView
mPullRefreshListView;
031.private ArrayAdapter<String>
mAdapter;
033.@Override
034.protected void onCreate(Bundle
savedInstanceState) {
035.super.onCreate(savedInstanceState);
036.setContentView(R.layout.main);
037.mPullRefreshListView
= (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
040./**
041.*
实现 接口 OnRefreshListener2<ListView> 以便与监听 滚动条到顶部和到底部
042.*/
043.mPullRefreshListView.setOnRefreshListener(new OnRefreshListener2<ListView>()
{
044.@Override
045.public void onPullDownToRefresh(
PullToRefreshBase<ListView> refreshView) {
046.Toast.makeText(MainActivity.this, "onPullDownToRefresh",
Toast.LENGTH_SHORT).show();
047.new GetDataTask().execute();
048.}
049.@Override
050.public void onPullUpToRefresh(
PullToRefreshBase<ListView> refreshView) {
051.Toast.makeText(MainActivity.this, "onPullUpToRefresh",
Toast.LENGTH_SHORT).show();
052.new GetDataTask().execute();
053.}
054.});
058.ListView
actualListView = mPullRefreshListView.getRefreshableView();
060.//
Need to use the Actual ListView when registering for Context Menu
061.registerForContextMenu(actualListView);
063.mListItems
= new LinkedList<String>();
064.mListItems.addAll(Arrays.asList(mStrings));
066.mAdapter
= new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, mListItems);
068./**
069.*
Add Sound Event Listener
070.*/
072./**
073.*
设置下拉刷新和上拉加载时的 铃声（可有可无）
074.*/
075.SoundPullEventListener<ListView>
soundListener = new SoundPullEventListener<ListView>(this);
076.soundListener.addSoundEvent(State.PULL_TO_REFRESH,
R.raw.pull_event);
077.soundListener.addSoundEvent(State.RESET,
R.raw.reset_sound);
078.soundListener.addSoundEvent(State.REFRESHING,
R.raw.refreshing_sound);
079.mPullRefreshListView.setOnPullEventListener(soundListener);
081.//
You can also just use setListAdapter(mAdapter) or
082.//
mPullRefreshListView.setAdapter(mAdapter)
083.actualListView.setAdapter(mAdapter);
087.}
088.//模拟网络加载数据的
异步请求类
089.//
090.private class GetDataTask extends AsyncTask<Void,
Void, String[]> {
092.//子线程请求数据
093.@Override
094.protected String[]
doInBackground(Void... params) {
095.//
Simulates a background job.
096.try {
097.Thread.sleep(10);
098.} catch (InterruptedException
e) {
099.}
100.return mStrings;
101.}
103.//主线程更新UI
104.@Override
105.protected void onPostExecute(String[]
result) {
107.//向RefreshListView
Item 添加一行数据 并刷新ListView
108.//mListItems.addLast("Added
after refresh...");
109.mListItems.addFirst("Added
after refresh...");
110.mAdapter.notifyDataSetChanged();
112.//通知RefreshListView
我们已经更新完成
113.//
Call onRefreshComplete when the list has been refreshed.
114.mPullRefreshListView.onRefreshComplete();
116.super.onPostExecute(result);
117.}
118.}
122.//数据源
123.private String[]
mStrings = { "Abbaye
de Belloc", "Abbaye
du Mont des Cats", "Abertam", "Abondance", "Ackawi",
124."Acorn", "Adelost", "Affidelice
au Chablis", "Afuega'l
Pitu", "Airag", "Airedale", "Aisy
Cendre",
125."Allgauer
Emmentaler", "Abbaye
de Belloc", "Abbaye
du Mont des Cats", "Abertam", "Abondance", "Ackawi",
126."Acorn", "Adelost", "Affidelice
au Chablis", "Afuega'l
Pitu", "Airag", "Airedale", "Aisy
Cendre",
127."Allgauer
Emmentaler" };
128.}
目前编码已经完成 我们测试一下