source: trunk/TagTracker/src/nl/powercraft/tagtracker/XMLParser.java

package nl.powercraft.tagtracker;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import android.os.Environment;
import android.util.Log;

public class XMLParser {

        @SuppressWarnings({ "unchecked", "rawtypes" })
        public ArrayList init()
        {
                ArrayList cardID = new ArrayList();
                File root = new File(Environment.getExternalStorageDirectory(), "TagTracker");
            File xmlfile = new File(root, "tags.log");
                DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
                DocumentBuilder builder = null;
                try {
                    builder = builderFactory.newDocumentBuilder();
                } catch (ParserConfigurationException e) {
                    e.printStackTrace();  
                }
                try {
                    Document document = builder.parse(new FileInputStream(xmlfile));
                    Element rootElement = document.getDocumentElement();
                    NodeList nodes = rootElement.getChildNodes();
                    
                    for(int i=0; i<nodes.getLength(); i++){
                      Node node = nodes.item(i);
                      //Log.d("TagTracker", "[" + i + "] " + node.getNodeName());
                      if(node instanceof Element){
                        //a child element to process
                        Element child = (Element) node;
                        Log.d("TagTracker", "" + (child.getNodeName() == "tag"));
                        if(child.getNodeName().equals("tag"))
                        {
                                 Log.d("TagTracker", "Toasting...");
                                 String attribute = child.getAttribute("uid");
                                 cardID.add(attribute);
                        }
                      }
                    }
                } catch (SAXException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return cardID;  
        }
        
}