安卓中xml的序列化

创建一个javaBean类来保存短信内容，使用xml来进行序列化

package com.itheima.xmlseriasizale;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;

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

import android.app.Activity;
import android.os.Bundle;
import android.util.Xml;
import android.view.View;

public class MainActivity extends Activity {
	//创建一个集合
	ArrayList<SMS> array = new ArrayList<SMS>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //添加集合元素
        for(int x=0;x<30;x++){
        	SMS sms = new SMS();
        	sms.from="10086"+x;
        	sms.content="hello"+x;
        	sms.time="2016年9月"+x;
        	array.add(sms);
        }
    }
    public void storeSms(View v){
    	//创建序列化器
    	XmlSerializer serializer = Xml.newSerializer();
    	try {
			serializer.setOutput(openFileOutput("xmlList.xml",MODE_PRIVATE), "utf-8");
			serializer.startDocument("utf-8", true);
			serializer.startTag(null, "SMSlist");
			for(SMS sms :array){
				serializer.startTag(null,"SMS");
				
				serializer.startTag(null, "from");
				serializer.text(sms.from);
				serializer.endTag(null, "from");
				
				serializer.startTag(null, "content");
				serializer.text(sms.content);
				serializer.endTag(null, "content");
				
				serializer.startTag(null, "time");
				serializer.text(sms.time);
				serializer.endTag(null, "time");
				
				serializer.endTag(null,"SMS");
			}
			serializer.endTag(null, "SMSlist");
			serializer.endDocument();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    }
    public void jiexi(View v) throws Exception{
    	//创建一个集合
    	ArrayList<SMS> list  = null;
    	//创建一个对象
    	SMS sms = null;
    	//获取解释器
    	XmlPullParser newPullParser = Xml.newPullParser();
    	//设置读取路径
    	try {
			newPullParser.setInput(openFileInput("xmlList.xml"),"utf-8");
			//获取事件
			int eventType = newPullParser.getEventType();
			while(eventType!=XmlPullParser.END_DOCUMENT){
				switch (eventType) {
				case XmlPullParser.START_TAG:
					if("SMSlist".equals(newPullParser.getName())){
						//创建集合
						list= new ArrayList<SMS>();
					}else if("SMS".equals(newPullParser.getName())){
						//创建一个对象
						sms = new SMS();
					}else if("from".equals(newPullParser.getName())){
						//创建一个对象
						sms.from=newPullParser.nextText();
					}else if("content".equals(newPullParser.getName())){
						//创建一个对象
						sms.content=newPullParser.nextText();
					}else if("time".equals(newPullParser.getName())){
						//创建一个对象
						sms.time=newPullParser.nextText();
					}
					break;

                  case XmlPullParser.END_TAG:
                	  if("SMS".equals(newPullParser.getName())){
  						//创建一个对象
  						list.add(sms);
  					}
					break;
			}
		   eventType = newPullParser.next();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (XmlPullParserException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    	for(SMS smss:list){
    		System.out.println(smss);
    	}
		 
    }
    
    
}

package com.itheima.xmlseriasizale;

public class SMS {
    public String from;
    public String content;
    public String time;
	@Override
	public String toString() {
		return "SMS [from=" + from + ", content=" + content + ", time=" + time
				+ "]";
	}
    
}