HttpUtils请求XML加XListView刷新加载

package com.example.xmltest2;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;

import org.com.cctest.view.XListView;
import org.com.cctest.view.XListView.IXListViewListener;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;
import com.lidroid.xutils.http.client.HttpRequest.HttpMethod;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Xml;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends ActionBarActivity implements IXListViewListener {
String path = "http://www.oschina.net/action/api/news_list";

Handler handler = new Handler() {

public void handleMessage(android.os.Message msg) {

String xml = (String) msg.obj;

xml(xml);

xlistView.setAdapter(new MyAdapter(MainActivity.this, list));

for (News news : list) {
System.out.println(news.toString());
}
};

};

LinkedList<News> list = new LinkedList<>();
private News news;

private XListView xlistView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

xlistView = (XListView) findViewById(R.id.xlistView);
//激活加载更多,默认不是激活的
xlistView.setPullLoadEnable(true);

xlistView.setXListViewListener(this);

getXml();

}

private void getXml() {
HttpUtils httpUtils = new HttpUtils();
httpUtils.configCurrentHttpCacheExpiry(0);
httpUtils.send(HttpMethod.GET, path, new RequestCallBack<String>() {

@Override
public void onFailure(HttpException arg0, String arg1) {
// TODO Auto-generated method stub

}

@Override
public void onSuccess(ResponseInfo<String> arg0) {

String result = arg0.result;
Message msg = Message.obtain();
msg.obj = result;
handler.sendMessage(msg);

}
});
}

/**
* 解析xml
*
* @param xml
*/
protected void xml(String xml) {

// 得到解析器
XmlPullParser pullParser = Xml.newPullParser();
// 把Stirng转成流
ByteArrayInputStream arrayInputStream = new ByteArrayInputStream(
xml.getBytes());

try {
pullParser.setInput(new InputStreamReader(arrayInputStream));

// 得到事件类型
int eventType = pullParser.getEventType();

while (eventType != XmlPullParser.END_DOCUMENT) {
switch (eventType) {
case XmlPullParser.START_TAG:
// 得到标签名
String tagName = pullParser.getName();

if ("news".equals(tagName)) {
news = new News();

} else if ("title".equals(tagName)) {

news.title = pullParser.nextText();

} else if ("pubDate".equals(tagName)) {
news.pubDate = pullParser.nextText();

}

break;

case XmlPullParser.END_TAG:
// 结束标签的名字
tagName = pullParser.getName();
if ("news".equals(tagName)) {
list.addLast(news);
}

break;
}
eventType = pullParser.next();
}

} catch (XmlPullParserException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

@Override//刷新
public void onRefresh() {

getXml();

xlistView.stopLoadMore();
xlistView.stopRefresh();
}

@Override//加载更多
public void onLoadMore() {

getXml();

xlistView.stopLoadMore();
xlistView.stopRefresh();
}

}