Tutorial

				
<?xml version="1.0"?>
<!-- This is a comment -->
<address>
	<name>Lars </name>
	<street> Test </street>
	<telephon number= "0123"/>
</address>
			

Comments in XML are defined as: <! COMMENT>

The Java programming language provides several standard libraries for processing XML files. The SAX and the DOM XML parsers are also available on Android.

The SAX and DOM parsers API is on Android the same as in standard Java. SAX and DOM have their limitations, therefore it is not recommended to use them on Android. Therefore this tutorial does not give an example for the usage of this library.

The Java standard provides also the Stax parser. This parser is not part of the Android platform.

Android provides for XML parsing and writing the XmlPullParser class. This parser is not available in standard Java but is similar to the Stax parser. The parser is hosted at http://www.xmlpull.org/ .

On Android it is recommended to use the XmlPullParser. It has a relatively simple API compared to SAX and DOM and is fast and requires less memory then the DOM API.

The Javadoc of XmlPullParser gives a nice example how you can use this library.

			
 import java.io.IOException;
 import java.io.StringReader;

 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException.html;
 import org.xmlpull.v1.XmlPullParserFactory;

 public class SimpleXmlPullApp
 {

     public static void main (String args[])
         throws XmlPullParserException, IOException
     {
         XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
         factory.setNamespaceAware(true);
         XmlPullParser xpp = factory.newPullParser();

         xpp.setInput( new StringReader ( "<foo>Hello World!</foo>" ) );
         int eventType = xpp.getEventType();
         while (eventType != XmlPullParser.END_DOCUMENT) {
          if(eventType == XmlPullParser.START_DOCUMENT) {
              System.out.println("Start document");
          } else if(eventType == XmlPullParser.END_DOCUMENT) {
              System.out.println("End document");
          } else if(eventType == XmlPullParser.START_TAG) {
              System.out.println("Start tag "+xpp.getName());
          } else if(eventType == XmlPullParser.END_TAG) {
              System.out.println("End tag "+xpp.getName());
          } else if(eventType == XmlPullParser.TEXT) {
              System.out.println("Text "+xpp.getText());
          }
          eventType = xpp.next();
         }
     }
 }

		

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