Android XML Parsing using DOM

Add Internet permission to AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET"/>

activity_main.xml

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" 

 android:layout_width="fill_parent" 

 android:layout_height="fill_parent" >

 <RelativeLayout         

android:layout_width="wrap_content" 

 android:layout_height="wrap_content" >
<TextView             

android:id="@+id/text"             

android:layout_width="wrap_content"             

android:layout_height="wrap_content" 

 android:layout_centerHorizontal="true"             

android:layout_centerVertical="true" />
    </RelativeLayout>

</ScrollView>

MainActivity.java

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.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

public class MainActivity extends Activity {
    // Declare variables    TextView textview;
    NodeList nodelist;
    ProgressDialog pDialog;
    // Insert image URL     

String URL = "http://www.androidbegin.com/tutorial/XMLParseTutorial.xml";

    @Override    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // Get the view from activity_main.xml         

setContentView(R.layout.activity_main);
        // Locate a TextView in your activity_main.xml layout         

textview = (TextView) findViewById(R.id.text);
        // Execute DownloadXML AsyncTask 

 new DownloadXML().execute(URL);
    }

    // DownloadXML AsyncTask 

 private class DownloadXML extends AsyncTask<String, Void, Void> {

        @Override 

 protected void onPreExecute() {
            super.onPreExecute();
            // Create a progressbar 

 pDialog = new ProgressDialog(MainActivity.this);
            // Set progressbar title             

pDialog.setTitle("Android Simple XML Parsing using DOM Tutorial");
            // Set progressbar message 

 pDialog.setMessage("Loading...");
            pDialog.setIndeterminate(false);
            // Show progressbar 

 pDialog.show();
        }

        @Override         

protected Void doInBackground(String... Url) {
            try {
                URL url = new URL(Url[0]);
                DocumentBuilderFactory dbf = DocumentBuilderFactory
                        .newInstance();
                DocumentBuilder db = dbf.newDocumentBuilder();
                // Download the XML file 

 Document doc = db.parse(new InputSource(url.openStream()));
                doc.getDocumentElement().normalize();
                // Locate the Tag Name                 

nodelist = doc.getElementsByTagName("item");

            } catch (Exception e) {
                Log.e("Error", e.getMessage());
                e.printStackTrace();
            }
            return null;

        }

        @Override         

protected void onPostExecute(Void args) {

            for (int temp = 0; temp < nodelist.getLength(); temp++) {
                Node nNode = nodelist.item(temp);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element eElement = (Element) nNode;
                    // Set the texts into TextViews from item nodes 

 // Get the title 

 textview.setText(textview.getText() + "Title : " + getNode("title", eElement) + "\n" + "\n");
                    // Get the description 

 textview.setText(textview.getText() + "Description : " + getNode("description", eElement) + "\n" + "\n");
                    // Get the link 

 textview.setText(textview.getText() + "Link : " + getNode("link", eElement) + "\n" + "\n");
                    // Get the date   

textview.setText(textview.getText() + "Date : "+ getNode("date", eElement) + "\n" + "\n" + "\n"+"\n");
                }
            }
            // Close progressbar 

 pDialog.dismiss();
        }
    }

    // getNode function 

 private static String getNode(String sTag, Element eElement) {
        NodeList nlList = eElement.getElementsByTagName(sTag).item(0)
                .getChildNodes();
        Node nValue = (Node) nlList.item(0);
        return nValue.getNodeValue();
    }
}