XMl Parsing With DOM Parser in Android

example.xml 

<maintag>

<item>

<name>AndroidPeople</name>

<website category="android">www.androidpeople.com</website>

</item>

<item>

<name>iPhoneAppDeveloper</name>

<website category="iPhone">www.iphone-app-developer.com</website>

</item>

</maintag>

XMLParsingDOMExample.java

This is main activity class. when App. starts this file will be called first.

This file contains how to use DOM Parser to handle XML tags.

[sourcecode language="java"]

package com.androidpeople.xml.parsing;

import java.net.URL;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import org.xml.sax.InputSource;

import android.app.Activity;

import android.os.Bundle;

import android.widget.LinearLayout;

import android.widget.TextView;

public class XMLParsingDOMExample extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

/** Create a new layout to display the view */

LinearLayout layout = new LinearLayout(this);

layout.setOrientation(1);

/** Create a new textview array to display the results */

TextView name[];

TextView website[];

TextView category[];

try {

URL url = new URL(

"http://www.androidpeople.com/wp-content/uploads/2010/06/example.xml");

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

DocumentBuilder db = dbf.newDocumentBuilder();

Document doc = db.parse(new InputSource(url.openStream()));

doc.getDocumentElement().normalize();

NodeList nodeList = doc.getElementsByTagName("item");

/** Assign textview array lenght by arraylist size */

name = new TextView[nodeList.getLength()];

website = new TextView[nodeList.getLength()];

category = new TextView[nodeList.getLength()];

for (int i = 0; i < nodeList.getLength(); i++) {

Node node = nodeList.item(i);

name[i] = new TextView(this);

website[i] = new TextView(this);

category[i] = new TextView(this);

Element fstElmnt = (Element) node;

NodeList nameList = fstElmnt.getElementsByTagName("name");

Element nameElement = (Element) nameList.item(0);

nameList = nameElement.getChildNodes();

name[i].setText("Name = "

+ ((Node) nameList.item(0)).getNodeValue());

NodeList websiteList = fstElmnt.getElementsByTagName("website");

Element websiteElement = (Element) websiteList.item(0);

websiteList = websiteElement.getChildNodes();

website[i].setText("Website = "

+ ((Node) websiteList.item(0)).getNodeValue());

category[i].setText("Website Category = "

+ websiteElement.getAttribute("category"));

layout.addView(name[i]);

layout.addView(website[i]);

layout.addView(category[i]);

}

} catch (Exception e) {

System.out.println("XML Pasing Excpetion = " + e);

}

/** Set the layout view to display */

setContentView(layout);

}

}