public static List<Person> xmlParser(InputStream xml) throws Exception{List<Person> persons=null;Person p=null;XmlPullParser parser=Xml.newPullParser();parser.setInput(xml, "UTF-8");int event=parser.getEventType();while(event!=XmlPullParser.END_DOCUMENT){switch (event) {case XmlPullParser.START_DOCUMENT:persons=new ArrayList<Person>();break;case XmlPullParser.START_TAG:if (parser.getName().equals("person")) {p=new Person();p.setId(Integer.parseInt(parser.getAttributeValue(0)));}if (parser.getName().equals("name")) {p.setName(parser.nextText());}if(parser.getName().equals("age")){p.setAge(Integer.parseInt(parser.nextText()));}break;case XmlPullParser.END_TAG:if (parser.getName().equals("person")) {persons.add(p);p=null;}break;}event=parser.next();}return persons;}

public static void saveAsXml(List<Person> persons,OutputStream os)throws Exception{XmlSerializer xmlSerial= Xml.newSerializer();xmlSerial.setOutput(os, "UTF-8");xmlSerial.startDocument("UTF-8", true);xmlSerial.startTag(null, "persons");for(Person person : persons){xmlSerial.startTag(null, "person");xmlSerial.attribute(null, "id",String.valueOf(person.getId()));xmlSerial.startTag(null, "name");xmlSerial.text(person.getName());xmlSerial.endTag(null, "name");xmlSerial.startTag(null, "age");xmlSerial.text(String.valueOf(person.getAge()));xmlSerial.endTag(null, "age");        xmlSerial.endTag(null, "person");}xmlSerial.endTag(null, "persons");xmlSerial.endDocument();os.flush();os.close();}