一、XmlSerializer

XmlSerializer serializer= Xml.newSerializer();
serializer.setOutput(fos,"utf-8");
//开始文档（字符集，文档是否独立）
serializer.startDocument("utf-8",true);
//开始一个标签（参数：命名空间，标签名）
serializer.startTag(null,"name");
//结束一个标签（参数：命名空间，标签名）
serializer.endTag(null,"name");
//结束文档
serializer.endDocument();

二、代码示例

public void XmlSave(View view)
{
    XmlSerializer serializer= Xml.newSerializer();
    File file=new File(this.getFilesDir(),"book.xml");
    try {
        OutputStream out=new FileOutputStream(file);
        serializer.setOutput(out,"utf-8");
        //开始文档（字符集，文档是否独立）
        serializer.startDocument("utf-8",true);

        serializer.startTag(null,"Books");
        for (int i=0;i<10;i++)
        {
            String name="西游记"+i;
            String price="吴承恩";

            serializer.startTag(null,"book");

            serializer.startTag(null,"name");
            serializer.text(name);
            serializer.endTag(null,"name");

            serializer.startTag(null,"price");
            serializer.text(price);
            serializer.endTag(null,"price");

            serializer.endTag(null,"book");
        }
        serializer.endTag(null,"Books");
        serializer.endDocument();

    } catch (Exception e) {
        e.printStackTrace();
    }
}