写一个很简单的例子记录一下XML的创建与解析。

创建与解析其实是两个互逆的过程，会了其中一个对应的就能写出来。

创建用XmlSerializer xmlSerializer=Xml.newSerializer();

解析用XmlPullParser xmlPullParser=Xml.newPullParser();

 

package com.example.xmlborn;

import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;

import android.R.xml;
import android.os.Bundle;
import android.app.Activity;
import android.util.Xml;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener{
    Button xmlpullButton;
    private String result;
    private TextView textView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        String resource=produceXML();
        textView=(TextView) findViewById(R.id.text);
        xmlpullButton=(Button) findViewById(R.id.button1);
        xmlpullButton.setOnClickListener(this);
    }
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
        case R.id.button1:
            result=parseXML();
            if (result!=null) {
                textView.setText(result);
            }else {
                Toast.makeText(getApplicationContext(),"null",1000).show();
            }

            break;

        default:
            break;
        }
    }
    private String produceXML() {
        // TODO Auto-generated method stub
        StringWriter writer=new StringWriter();
        XmlSerializer xmlSerializer=Xml.newSerializer();
        ArrayList<Beauty> list=getData();
        try {
            xmlSerializer.setOutput(writer);
            xmlSerializer.startDocument("UTF-8",true);
            xmlSerializer.startTag(null,"beauties");
            for (Beauty beauty:list) {

                xmlSerializer.startTag(null,"beautyname");
                xmlSerializer.text(beauty.getNameString());
                xmlSerializer.endTag(null,"beautyname");
                xmlSerializer.startTag(null,"age");
                xmlSerializer.text(beauty.getAge());
                xmlSerializer.endTag(null,"age");

            }
            xmlSerializer.endTag(null,"beauties");
            xmlSerializer.endDocument();

        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalStateException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return writer.toString();
    }

    private ArrayList<Beauty> getData() {
        // TODO Auto-generated method stub
        ArrayList<Beauty> list=new ArrayList<Beauty>();
        Beauty lily=new Beauty("lily","23");
        Beauty lucy=new Beauty("lucy","36");
        list.add(lily);
        list.add(lucy);
        return list;
    }



    private String parseXML() {
        result="通过pull解析结果为：";
        String xmlString=produceXML();
        StringReader in=new StringReader(xmlString);
    XmlPullParser xmlPullParser=Xml.newPullParser();
    try {
        xmlPullParser.setInput(in);
        int type=xmlPullParser.getEventType();
        while (type!=XmlPullParser.END_DOCUMENT) {
        String nodeName=xmlPullParser.getName();
        switch (type) {
        case XmlPullParser.START_TAG:
            if("beautyname".equals(nodeName)){
                result +="姓名："+xmlPullParser.nextText();
            }if ("age".equals(nodeName)) {
                result +="年龄:"+xmlPullParser.nextText();
            }
            break;


        }
        type=xmlPullParser.next();
        }
    } catch (XmlPullParserException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
        return result;
        // TODO Auto-generated method stub

    }

class Beauty{

        String nameString,age;

        public String getNameString() {
            return nameString;
        }

        public void setNameString(String nameString) {
            this.nameString = nameString;
        }

        public String getAge() {
            return age;
        }

        public void setAge(String age) {
            this.age = age;
        }

        public Beauty(String nameString, String age) {
            super();
            this.nameString = nameString;
            this.age = age;
        }

    }
}
代码地址：