HttpUtils请求XML加XListView刷新加载

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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();    }}
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