Retrieve Rss Feed And Display It In Text View

I would like to get this link ' ' working. I want to retrieve the RSS feed and display it in a text view, I've tried out the code but doesn't seems to be working. I guess there is

Solution 1:

Use this Codes...!

import java.net.URL;
import java.util.ArrayList;
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.content.Context;
import android.os.Bundle;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

publicclassXMLParsingDOMExampleextendsActivity {

    ArrayList<String> title;
    ArrayList<String> description;
    ItemAdapter adapter1;
    @OverridepublicvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        ListViewlist= (ListView) findViewById(R.id.list);
        title = newArrayList<String>();
        description = newArrayList<String>();  

        try {

            URLurl=newURL(
                    "http://app2.nea.gov.sg/data/rss/nea_psi.xml");
            DocumentBuilderFactorydbf= DocumentBuilderFactory.newInstance();
            DocumentBuilderdb= dbf.newDocumentBuilder();
            Documentdoc= db.parse(newInputSource(url.openStream()));
            doc.getDocumentElement().normalize();

            NodeListnodeList= doc.getElementsByTagName("item");
            for (inti=0; i < nodeList.getLength(); i++) {

                Nodenode= nodeList.item(i);       

                ElementfstElmnt= (Element) node;
                NodeListnameList= fstElmnt.getElementsByTagName("title");
                ElementnameElement= (Element) nameList.item(0);
                nameList = nameElement.getChildNodes();         

                title.add(""+ ((Node) nameList.item(0)).getNodeValue());

                NodeListwebsiteList= fstElmnt.getElementsByTagName("description");
                ElementwebsiteElement= (Element) websiteList.item(0);
                websiteList = websiteElement.getChildNodes();

                description.add(""+ ((Node) websiteList.item(0)).getNodeValue());           

            }
        } catch (Exception e) {
            System.out.println("XML Pasing Excpetion = " + e);
        }

        adapter1 = newItemAdapter(this);
        list.setAdapter(adapter1);
    }


    classItemAdapterextendsBaseAdapter {

        final LayoutInflater mInflater;

        privateclassViewHolder {
            public TextView title_text;
            public TextView des_text;
        }

        publicItemAdapter(Context context) {
            // TODO Auto-generated constructor stubsuper();
            mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);     
        }

        //@OverridepublicintgetCount() {
            return title.size();
        }

        //@Overridepublic Object getItem(int position) {
            return position;
        }

        //@OverridepubliclonggetItemId(int position) {
            return position;
        }

        //@Overridepublic View getView(finalint position, View convertView, ViewGroup parent) {
            Viewview= convertView;
            final ViewHolder holder;
            if (convertView == null) {
                view = mInflater.inflate(R.layout.mainpage_listitem_activity, parent, false);
                holder = newViewHolder();
                holder.title_text = (TextView) view.findViewById(R.id.title_text);
                holder.des_text = (TextView) view.findViewById(R.id.des_text);

                view.setTag(holder);
            } else {
                holder = (ViewHolder) view.getTag();
            }

            holder.title_text.setText(""+title.get(position));

            holder.des_text.setText(""+Html.fromHtml(description.get(position)));

        return view;
        }
    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"
    ><ListViewandroid:id="@+id/list"android:layout_width="match_parent"android:layout_height="wrap_content"
                ></ListView></LinearLayout>

mainpage_listitem_activity.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical"
     ><TextViewandroid:id="@+id/title_text"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="title"android:layout_margin="5dp"android:textSize="22dp"android:textColor="#FFFFFF"/><TextViewandroid:id="@+id/des_text"android:layout_width="wrap_content"android:layout_height="wrap_content"android:gravity="center"android:text="description "android:layout_margin="5dp"android:textSize="18dp"android:textColor="#FFFFFF"/></LinearLayout>

Solution 2:

Make a AsyncTask like this

publicclassMyAsyncTaskextendsAsyncTask<Void, Void, Void> {
        ProgressDialog dialog;
        MyWeather weatherResult;

        @OverrideprotectedvoidonPreExecute() {
            // TODO Auto-generated method stub
            dialog = newProgressDialog(MainActivity.this);
            dialog.setMessage("Please wait...");
            dialog.show();
            super.onPreExecute();
        }

        @Overrideprotected Void doInBackground(Void... params) {
            StringweatherString= QueryYahooWeather();
            DocumentweatherDoc= convertStringToDocument(weatherString);

            weatherResult = parseWeather(weatherDoc);
            returnnull;
        }

        @OverrideprotectedvoidonPostExecute(Void result) {
            // TODO Auto-generated method stub

            dialog.dismiss();
            psi.setText(weatherResult.toString());
            super.onPostExecute(result);
        }

    }

and change your onCreate like this

@OverridepublicvoidonCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     psi = (TextView)findViewById(R.id.psi);


     newMyAsyncTask().execute();
 }

DO THIS

• Show a progress dialog in onPreExecute
• Do network call and parsing in doInBackground
• Update the view in onPostExecute e.g Show results, dismiss dialog