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();
}