android xml文件操作

//xml 写操作
XmlSerializer serializer = Xml.newSerializer();

FileOutputStream outputStream = context.openFileOutput("xmlwriter.xml", Context.MODE_PRIVATE);

StringWriter writer=new StringWriter();
serializer.setOutput(writer);

serializer.startDocument("utf-8",true);

serializer.startTag("", "users");
serializer.startTag("", "user");
serializer.attribute("","id","23");
serializer.text("sdafsdfga");
serializer.endTag("", "user");
serializer.endTag("","users");
serializer.endDocument();

outputStream.write(writer.toString().getBytes());

//xml 读操作，解析
XmlPullParser pullParser = Xml.newPullParser();
InputStream inputStream=context.openFileInput("xmlwriter.xml");
pullParser.setInput(inputStream, "utf-8");
int type=pullParser.getEventType();

while(type!=XmlPullParser.END_DOCUMENT){
switch (type) {
//开始文档
case XmlPullParser.START_DOCUMENT:
System.out.println("START_DOCUMENT");
break;
//开始标签
case XmlPullParser.START_TAG:
String tagName = pullParser.getName();
if(tagName.equals("user")){
String value=pullParser.getAttributeValue(0);
String nextText = pullParser.nextText();
System.out.println(value+","+nextText);
}
break;
//结束标签
case XmlPullParser.END_TAG:
String endTagName = pullParser.getName();
if(endTagName.equals("user")){
String text = pullParser.getText();
String nextText = pullParser.nextText();
System.out.println(text+""+nextText);
}
break;
}
//往下遍历
type=pullParser.next();
}

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