Question

I am trying to read an RSS feed. I have tried many links using the code below and succeeded, but when I try with that link above I get a FileNotFoundException. What could cause this, and how do I fix my code?

EfficientAdapter class:

package com.xmlparse;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class EfficientAdapter extends BaseAdapter 
{
    private Activity activity;
    private ArrayList<Post> data;
    private static LayoutInflater inflater = null;
    //public ImageLoader imageLoader;
    ViewHolder holder;

    EfficientAdapter(Activity a, ArrayList<Post> d) {
            activity = a;
            data = d;
            inflater = (LayoutInflater) activity
                            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    //      imageLoader = new ImageLoader(activity.getApplicationContext());

    }

    @Override
    public int getCount() {
            return data.toArray().length;
    }

    @Override
    public Object getItem(int position) {
            return position;
    }

    @Override
    public long getItemId(int position) {
            return position;
    }

    public static class ViewHolder {
            public TextView label;
            public TextView addr;
            public ImageView image;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
            View vi = convertView;

            if (convertView == null) {
                    vi = inflater.inflate(R.layout.row, null);
                    holder = new ViewHolder();
                    holder.label = (TextView) vi.findViewById(R.id.title);
                    holder.addr = (TextView) vi.findViewById(R.id.details);
                    holder.image = (ImageView) vi.findViewById(R.id.thumb);
                    vi.setTag(holder);
            } else
                    holder = (ViewHolder) vi.getTag();

            holder.label.setText(data.get(position).getTitle());
    //      holder.addr.setText(data.get(position).getPubDate());
            holder.addr.setText(data.get(position).getDescription());
             imageLoader.DisplayImage((data.get(position).getThumbnail()), activity,
                            holder.image, 72, 72);
             URL url = null;
             try {
                    url = new URL((data.get(position).getThumbnail()));
            } catch (MalformedURLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
            }
            InputStream content = null;
            try {
                    content = (InputStream)url.getContent();
            } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
            }
            Drawable d = Drawable.createFromStream(content , "src"); 
            Bitmap mIcon1 = null;
             try {
                     mIcon1 =
                            BitmapFactory.decodeStream(url.openConnection().getInputStream());
            } catch (IOException e) {
                    e.printStackTrace();
            }
            holder.image.setImageBitmap(Bitmap.createScaledBitmap(mIcon1, 72, 72, false));


            return vi;
     }

}

Post class:

package com.xmlparse;
public class Post {

    private String title;
    private String thumbnail;
    private String url;
    private String description;
    private String pubDate;

    public String getTitle() {
            return title;
    }

    public void setTitle(String title) {
            this.title = title;
    }

    public String getThumbnail() {
            return thumbnail;
    }

    public void setThumbnail(String thumbnail) {
            this.thumbnail = thumbnail;
    }

    public String getUrl() {
            return url;
    }

    public void setUrl(String url) {
            this.url = url;
    }

    public void setDescription(String description) {
            this.description = description;
    }

    public String getDescription() {
            return description;
    }

    public void setPubDate(String pubDate) {
            this.pubDate = pubDate;
    }

    public String getPubDate() {
            return pubDate;
    }

   }

xmlparsemain activity class:

package com.xmlparse;

import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

public class xmlparsemain extends Activity {
    /** Called when the activity is first created. */
    ListView lv1;
    ProgressDialog ShowProgress;
    public ArrayList<Post> PostList = new ArrayList<Post>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            lv1 = (ListView) findViewById(R.id.listView1);

            ShowProgress = ProgressDialog.show(xmlparsemain.this, "",
                            "Loading. Please wait...", true);
            new loadingTask().execute("http://screenrant.com/mobile/movie-reviews-feed.php");

            lv1.setOnItemClickListener(new OnItemClickListener() {
                    public void onItemClick(AdapterView<?> parent, View view,
                                    int position, long id) {

                            Intent intent = new Intent(Intent.ACTION_VIEW).setData(Uri
                                            .parse(PostList.get(position).getUrl()));
                            startActivity(intent);

                    }
            });

    }

    class loadingTask extends AsyncTask<String, Void, String> {

            protected String doInBackground(String... urls) {

                    SAXHelper sh = null;
                    try {
                            sh = new SAXHelper(urls[0]);
                    } catch (MalformedURLException e) {
                            e.printStackTrace();
                    }
                    sh.parseContent("");
                    return "";

            }

            protected void onPostExecute(String s) {
                    lv1.setAdapter(new EfficientAdapter(xmlparsemain.this, PostList));
                    ShowProgress.dismiss();

            }
    }

    class SAXHelper {
            public HashMap<String, String> userList = new HashMap<String, String>();
            private URL url2;

            public SAXHelper(String url1) throws MalformedURLException {
                    this.url2 = new URL(url1);
            }

            public RSSHandler parseContent(String parseContent) {
                    RSSHandler df = new RSSHandler();
                    try {

                            SAXParserFactory spf = SAXParserFactory.newInstance();
                            SAXParser sp = spf.newSAXParser();
                            XMLReader xr = sp.getXMLReader();
                            xr.setContentHandler(df);

                       /*     URLConnection con = url2.openConnection();
                            con.setConnectTimeout(20000);
                         InputSource   is = new InputSource(new InputStreamReader(con.getInputStream()));
                       xr.parse(is);*/
                            xr.parse(new InputSource(url2.openStream()));
                    } catch (Exception e) {
                            e.printStackTrace();
                    }
                    return df;
            }
    }

    class RSSHandler extends DefaultHandler {

            private Post currentPost = new Post();
            StringBuffer chars = new StringBuffer();

            @Override
            public void startElement(String uri, String localName, String qName,
                            Attributes atts) {

                    chars = new StringBuffer();
                    if (localName.equalsIgnoreCase("item")) {

                    }
            }

            @Override
            public void endElement(String uri, String localName, String qName)
                            throws SAXException {

                    if (localName.equalsIgnoreCase("title")
                                    && currentPost.getTitle() == null) {
                            currentPost.setTitle(chars.toString());

                    }
                    if (localName.equalsIgnoreCase("pubDate")
                                    && currentPost.getPubDate() == null) {
                            currentPost.setPubDate(chars.toString());

                    }
                    if (localName.equalsIgnoreCase("description")
                                    && currentPost.getDescription() == null) {
                            currentPost.setDescription(chars.toString());

                    }
                    if (localName.equalsIgnoreCase("thumbnail")
                                    && currentPost.getThumbnail() == null) {
                            currentPost.setThumbnail(chars.toString());

                    }
                    if (localName.equalsIgnoreCase("link")
                                    && currentPost.getUrl() == null) {
                            currentPost.setUrl(chars.toString());
                    }

                    if (localName.equalsIgnoreCase("item")) {
                            PostList.add(currentPost);
                            currentPost = new Post();
                    }

            }

            @Override
            public void characters(char ch[], int start, int length) {
                    chars.append(new String(ch, start, length));
            }

     }

}

My logcat report:

02-29 15:20:44.183: W/System.err(2470): java.io.FileNotFoundException: http://screenrant.com/mobile/movie-news-feed.php

Answer 1

try using HTtpConnection instead of URLConnection, as follows:

InputStream callWebErvice(String serviceURL){
        // http get client
            HttpClient client=new DefaultHttpClient();
            HttpGet getRequest=new HttpGet();

            try {
                // construct a URI object
                getRequest.setURI(new URI(serviceURL));
            } catch (URISyntaxException e) {
                Log.e("URISyntaxException", e.toString());
            }

            // buffer reader to read the response
            BufferedReader in=null;
            // the service response
            HttpResponse response=null;
            try {
                // execute the request
                response = client.execute(getRequest);
            } catch (ClientProtocolException e) {
                Log.e("ClientProtocolException", e.toString());
            } catch (IOException e) {
                Log.e("IO exception", e.toString());
            }
            if(response!=null)
                return response.getEntity().getContent();
            else
                return null;

    }

and change line xr.parse(new InputSource(url2.openStream()));

to

xr.parse(new InputSource(callWebErvice(url2)));