getting stringXmlContent and write then saved in to .xml file stored in sdcard in android how can possible?

I am implementing read and write xml in resource folder. Reading is ok, how can I modify this xml file save as sdcard:

EditText myXmlContent = (EditText)findViewById(R.id.my_xml);
String stringXmlContent;
try {
    stringXmlContent = getEventsFromAnXML(this);
    myXmlContent.setText(stringXmlContent);
} catch (XmlPullParserException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}

I am getting stringXmlContent. 开发者_如何学运维How can stringXmlContent be converted in to an xml file saved in sdcard?

Why you don't use XMLParse or DOM