pull解析解析月考题

package com.example.map_new_two;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ListView;

public class MainActivity extends Activity {

    private String url="http://apis.juhe.cn/goodbook/catalog?key=9d6ef8c31647a206e05fcaff70527182&dtype=xml";
    private ListView list_view;
    private List<Item> list=new ArrayList<Item>();
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        list_view=(ListView) findViewById(R.id.list_view);
        new Thread(){
            
            public void run() {
                init();
                
            }

    
            
        }.start();
        list_view.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent it=new Intent(getApplicationContext(),HomeActivity.class);
                startActivity(it);
                
            }
        });
    }

    private void init() {
        // TODO Auto-generated method stub
        HttpClient httpClient=new DefaultHttpClient();
        HttpGet httpGet=new HttpGet(url);
        try {
            HttpResponse httpResponse=httpClient.execute(httpGet);
            int len=httpResponse.getStatusLine().getStatusCode();
            if(len==200){
                HttpEntity httpEntity=httpResponse.getEntity();
                InputStream input=httpEntity.getContent();
                XmlPullParserFactory factory=XmlPullParserFactory.newInstance();
                XmlPullParser parser=factory.newPullParser();
                parser.setInput(input, "utf-8");
                int exenttype=parser.getEventType();
                String name="";
                Item item = null;
                while(exenttype!=XmlPullParser.END_DOCUMENT){
                
                    switch (exenttype) {
                    case XmlPullParser.START_DOCUMENT:
                        
                            
                        
                        break;
                    case XmlPullParser.START_TAG:
                        name = parser.getName();
                        if("item".equals(name)){
                            item=new Item();
                        }
                        break;

                    case XmlPullParser.TEXT:
                        String text=parser.getText();
                        if("id".equals(name)){
                            item.setId(text);
                        }else if("catalog".equals(name)){
                            item.setCatalog(text);
                            Log.i("TAG","fffffffrrrrrrrrrrrrrrrrrrrrrrrffff"+text);
                        }
                        break;

                    case XmlPullParser.END_TAG:
                        name = parser.getName();
                        if("item".equals(name)){
                            list.add(item);
                            item=null;
                            
                            
                        }
                        name="";
                        break;
                    case XmlPullParser.END_DOCUMENT:
                        
                        break;

                    default:
                        break;
                    }
                    exenttype=parser.next();
                }
                
                
            }
            
            runOnUiThread(new Runnable() {
                
                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    Mybase base=new Mybase(list, getApplicationContext());
                    list_view.setAdapter(base);
                }
            });
            
            
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (XmlPullParserException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    };

}

package com.example.map_new_two;


public class Item {
private String id;
private String catalog;
public String getId() {
    return id;
}
public void setId(String id) {
    this.id = id;
}
public String getCatalog() {
    return catalog;
}
public void setCatalog(String catalog) {
    this.catalog = catalog;
}
@Override
public String toString() {
    return "Item [id=" + id + ", catalog=" + catalog + "]";
}

}

package com.example.map_new_two;

import java.util.List;


import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView.FindListener;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class Mybase extends BaseAdapter{
        private List<Item> base;
        private Context context;
        
    public Mybase(List<Item> base, Context context) {
            super();
            this.base = base;
            this.context = context;
        }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return base.size();
    }

    @Override
    public Object getItem(int arg0) {
        // TODO Auto-generated method stub
        return base.get(arg0);
    }

    @Override
    public long getItemId(int arg0) {
        // TODO Auto-generated method stub
        return arg0;
    }

    @Override
    public View getView(int arg0, View arg1, ViewGroup arg2) {
        // TODO Auto-generated method stub
        Viehoder vh;
        if(arg1==null){
            vh=new Viehoder();
            arg1=LayoutInflater.from(context).inflate(R.layout.item,null);
            vh.texView1=(TextView) arg1.findViewById(R.id.textView1);
            arg1.setTag(vh);
        }else{
            vh=(Viehoder) arg1.getTag();
        }
        vh.texView1.setText(base.get(arg0).getCatalog());
        return arg1;
    }
class Viehoder{
    TextView texView1;
    
}
}