Android开发之XML的创建和解析

参考：http://blog.csdn.net/pi9nc/article/details/9320413

XML文件的解析，代码：

 public void click(View v) {
   InputStream is = getClassLoader().getResourceAsStream("weather.xml");
   //获取到XMLPullParse接口的对象
   XmlPullParser xpp = Xml.newPullParser();
   try {
    //设置输出流及编码
    xpp.setInput(is, "utf-8");
    //获取到节点的类型，START_DOCUMENT=0，END_DOCUMENT=1，START_TAG=2，END_TAG=3，TEXT=4
    int type = xpp.getEventType();
    CityBean city = null;
    //当前节点不是END_DOCUMENT的话，就一直循环遍历XML文件
    while (type!=XmlPullParser.END_DOCUMENT) {
     //使用switch判断type类型
     switch (type) {
     //type为2的情况下，进入START_TAG
     case XmlPullParser.START_TAG:
      //获取当前节点的名字是weather
      if ("weather".equals(xpp.getName())) {
       //city的集合
       cityList=new ArrayList<>();
      }else if ("city".equals(xpp.getName())) {
       city = new CityBean();
      }else if ("name".equals(xpp.getName())) {
       String name = xpp.nextText();
       city.setName(name);
      }else if ("temp".equals(xpp.getName())) {
       String temp = xpp.nextText();
       city.setTemp(temp);
      }else if ("pm".equals(xpp.getName())) {
       String pm = xpp.nextText();
       city.setPm(pm);
      }
      break;
     case XmlPullParser.END_TAG:
      if ("city".equals(xpp.getName())) {
       cityList.add(city);
      }
      break;
     default:
      break;
     }
     //把解析的指针移动到下一个节点
     type=xpp.next();
    }
    for (CityBean c1 : cityList) {
     System.out.println(c1.toString());
    }
   } catch (Exception e) {
    e.printStackTrace();
   }
  }

XML文件的创建，代码：

 File file = new File(Environment.getExternalStorageDirectory(),"info3.xml");
    XmlSerializer xml = Xml.newSerializer();
    try {
     FileOutputStream fos = new FileOutputStream(file);
     xml.setOutput(fos, "utf-8");
     xml.startDocument("utf-8", true);
     xml.startTag(null, "message");
     for (SmsBean smsBean : smsList) {
      xml.startTag(null, "sms");
      xml.startTag(null, "body");
      xml.text(smsBean.getBody());
      xml.endTag(null, "body");
      xml.startTag(null, "address");
      xml.text(smsBean.getAddress());
      xml.endTag(null, "address");
      xml.startTag(null, "date");
      xml.text(smsBean.getDate());
      xml.endTag(null, "date");
      xml.startTag(null, "type");
      xml.text(smsBean.getType());
      xml.endTag(null, "type");
      xml.endTag(null, "sms");
     }
     xml.endTag(null, "message");
     xml.endDocument();
     fos.close();
    } catch (Exception e) {

     e.printStackTrace();
 }