ListView下拉刷新框架使用

<?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" >
<!--     The PullToRefreshListView replaces a standard ListView widget. -->
<com.handmark.pulltorefresh.library.PullToRefreshListView
android:id="@+id/pull_refresh_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:cacheColorHint="#00000000"
android:divider="#19000000"
android:dividerHeight="4dp"
android:fadingEdge="none"
android:fastScrollEnabled="false"
android:footerDividersEnabled="false"
android:headerDividersEnabled="false"
android:smoothScrollbar="true" />
</LinearLayout>

package com.example.listview;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedList;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnLastItemVisibleListener;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
import com.handmark.pulltorefresh.library.PullToRefreshBase.State;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.handmark.pulltorefresh.library.extras.SoundPullEventListener;

import android.app.ListActivity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
/*
* ListView下拉刷新可以设置声音、模式、是否允许滚动；
* 更新数据需要使用一个异步类来加载数据并调用executed()方法执行异步类；
*/
public class MainActivity extends ListActivity {
/*
* 菜单项
*/
static final int MENU_MANUAL_REFRESH = 0;
static final int MENU_DISABLE_SCROLL = 1;
static final int MENU_SET_MODE = 2;
static final int MENU_DEMO = 3;
private PullToRefreshListView mPullToRefreshListView;
private LinkedList<String> mData;
//ListView显示数据
private String[] mString = new String[] { "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday", "Sunday", "China", "Chinese",
"Made in China" };
private ArrayAdapter<String> adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 取得下拉刷新列表
mPullToRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
mData = new LinkedList<String>();
for (int i = 0; i < mString.length; i++) {
mData.add(mString[i]);
}
adapter = new ArrayAdapter<String>(getApplicationContext(),
android.R.layout.simple_list_item_1, mData);
// setListAdapter(adapter);
// ListView listView= mPullToRefreshListView.getRefreshableView();
mPullToRefreshListView.setAdapter(adapter);
/**
*  设置下拉刷新监听事件
*/
mPullToRefreshListView
.setOnRefreshListener(new OnRefreshListener<ListView>() {

@Override
public void onRefresh(
PullToRefreshBase<ListView> refreshView) {

SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
"yyyy-MM-dd HH-mm");
String time = simpleDateFormat.format(new Date());
String label = time;
// 设置上次刷新时间
refreshView.getLoadingLayoutProxy()
.setLastUpdatedLabel("上次刷新时间:" + label);
Toast.makeText(getApplicationContext(), "刷新……", 0)
.show();
new NewDatas().execute();// 获取新的数据
}
});
/**
* 下拉到底部触发的事件
*/
mPullToRefreshListView
.setOnLastItemVisibleListener(new OnLastItemVisibleListener() {

@Override
public void onLastItemVisible() {

Toast.makeText(getApplicationContext(), "已经到了底部", 0)
.show();
}
});
/**
* 添加声音
*/
SoundPullEventListener<ListView> soundPullEventListener=new SoundPullEventListener<ListView>(MainActivity.this);
soundPullEventListener.addSoundEvent(State.REFRESHING, R.raw.refreshing_sound);
soundPullEventListener.addSoundEvent(State.RESET, R.raw.reset_sound);
soundPullEventListener.addSoundEvent(State.PULL_TO_REFRESH, R.raw.pull_event);
mPullToRefreshListView.setOnPullEventListener(soundPullEventListener);
}

/**
* 加载数据
*/
private class NewDatas extends AsyncTask<Void, Void, String[]> {

@Override
protected String[] doInBackground(Void... params) {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
return mString;
}

@Override
protected void onPostExecute(String[] result) {
mData.addFirst("added newly");
adapter.notifyDataSetChanged();
mPullToRefreshListView.onRefreshComplete();// 刷新完成
super.onPostExecute(result);
}

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, MENU_MANUAL_REFRESH, 0, "人工刷新");
menu.add(0, MENU_DISABLE_SCROLL, 1, mPullToRefreshListView
.isScrollingWhileRefreshingEnabled() ? "允许滚动" : "禁止滚动");
menu.add(0, MENU_SET_MODE, 0,
mPullToRefreshListView.getMode() == Mode.BOTH ? "下拉模式" : "两端模式");
menu.add(0, MENU_DEMO, 0, "示例");
return super.onPrepareOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_MANUAL_REFRESH:
new NewDatas().execute();
mPullToRefreshListView.setRefreshing(false);
break;

case MENU_DISABLE_SCROLL:
mPullToRefreshListView
.setScrollingWhileRefreshingEnabled(!mPullToRefreshListView
.isScrollingWhileRefreshingEnabled());
break;
case MENU_SET_MODE:
mPullToRefreshListView
.setMode(mPullToRefreshListView.getMode() == Mode.BOTH ? Mode.PULL_FROM_START
: Mode.BOTH);
break;
case MENU_DEMO:
mPullToRefreshListView.demo();
break;
}
return super.onOptionsItemSelected(item);
}

/**
* 改变菜单项内容
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {

MenuItem setMOde = menu.findItem(MENU_SET_MODE);
setMOde.setTitle(mPullToRefreshListView.getMode() == Mode.BOTH ? "两端模式"
: "下拉模式");
MenuItem srcollMode = menu.findItem(MENU_DISABLE_SCROLL);
srcollMode.setTitle(mPullToRefreshListView
.isScrollingWhileRefreshingEnabled() ? "允许滚动" : "禁止滚动");
return super.onPrepareOptionsMenu(menu);
}
}