Android Open Source - BT4Android-trunk Updates

From Project

License

The source code is released under:
Apache License
If you think the Android project BT4Android-trunk listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.love.apps.BT4U;
//w  w w.  ja va 2s  .c  o  m
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

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

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.actionbarsherlock.app.SherlockFragment;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;

public class Updates extends SherlockFragment 
{
   
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
  }

  private BTUpdateArrayAdapter theAdapter;

   
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {    
    
    //System.out.println(" HEY I MADE IT");
    super.onCreateView(inflater, container, savedInstanceState);
    setHasOptionsMenu(true);

    final View v = inflater.inflate(R.layout.activity_btupdates, container, false);
    ListView lv = (ListView)v.findViewById(R.id.btupdates_list);
    theAdapter = new BTUpdateArrayAdapter(this.getActivity().getBaseContext(),android.R.layout.simple_list_item_1);  
    lv.setAdapter(theAdapter);
    UpdatesGetter updates_getter = new UpdatesGetter();
    updates_getter.execute("http://www.blacksburg.gov/rss.aspx?type=5&cat=17&paramtime=Current");
    return v;
  }
  
  class UpdatesGetter extends AsyncTask<String, Integer, String>{

     
    protected String doInBackground(String... params) {

      try {
        HttpClient httpClient = new DefaultHttpClient();
        HttpGet httpRequest = new HttpGet(params[0]);
        HttpResponse response = httpClient.execute(httpRequest);
        InputStream in = response.getEntity().getContent();
        InputStreamReader ir = new InputStreamReader(in);
        BufferedReader bin = new BufferedReader(ir);
        String line = null;
        StringBuffer buff = new StringBuffer();
        while((line = bin.readLine())!=null){
          buff.append(line+"\n");
        }
        bin.close();  
        //System.out.println(buff.toString());
        return buff.toString();

      } catch (Exception e) {
        e.printStackTrace();
      }
      return null;
    }
    private String resultsSoFar = "";
    
     
    protected void onPostExecute(String result) {
      resultsSoFar = resultsSoFar + result;
      
      if (result!=null && result.contains("</rss>"))
      {
        
        try{
          SAXParserFactory factory = SAXParserFactory.newInstance();
          SAXParser saxParser = factory.newSAXParser();
          DefaultHandler handler = new DefaultHandler(){
            String[] data = {"","","",""};
            
            int index = -1;
            
            public void startElement(String uri, String localName,String qName, 
                        org.xml.sax.Attributes attributes) throws SAXException {
              if (qName.equals("item"))
              {
                data = new String[4];
                for (int i=0; i<data.length; i++)
                {
                  data[i] = "";
                }
                index = -1;
              }
              else if (qName.equals("title"))
              {
                index = 0;
              }
              else if (qName.equals("pubDate"))
              {
                index = 1;
              }
              else if (qName.equals("description"))
              {
                index = 2;
              }
              else if (qName.equals("link"))
              {
                index = 3;
              }
              else 
              {
                index = -1;
              }
            }
            public void endElement(String uri, String localName, String qName) 
            {
              if (qName.equals("item"))
              {
                for (int i=0; i<data.length;i++)
                {
                  data[i] = data[i].replace("&nbsp;", " ");
                }
                Updates.this.theAdapter.add(new NewsItem(data[0],data[1],data[2],data[3]));
                Log.d("Parser","Added a newsitem");
                index = -1;
              }
            }
            public void characters(char[] ch, int start, int length) 
            {
              if (index !=-1)
                data[index] = data[index] + new String(ch,start,length);
            }
          };
          
          saxParser.parse(new ByteArrayInputStream(resultsSoFar.getBytes()), handler);
        }catch(Exception e){e.printStackTrace();};
        
      }
      else
      {
        
      }
    }

    private void log(String string) {
      // TODO Auto-generated method stub
      Log.i("Updates.java", string);
    }
  }
  public class NewsItem
  {
    public String title;
    public String pubDate;
    public String description;
    public String link;
    public NewsItem(String title, String pubDate, String description, String link)
    {
      this.title = title;
      this.pubDate = pubDate;
      this.description = description;
      this.link = link;
    }
  }
  public class BTUpdateArrayAdapter extends BaseAdapter
  {

    ArrayList<NewsItem> items;
    long id;
    public BTUpdateArrayAdapter(Context context, int textViewResourceId) {
      super();
      
      items = new ArrayList<NewsItem>();
      id = textViewResourceId;
    }
    
    public void add(NewsItem ni)
    {
      items.add(ni);
      Log.d("Adapter","size: "+items.size());
      this.notifyDataSetChanged();
    }

     
    public int getCount() {
      Log.d("Adapter","getCount: "+items.size());
      return items.size();
    }

     
    public Object getItem(int arg0) {
      return items.get(arg0);
    }

     
    public long getItemId(int position) {
      return id;
    }

     
    public View getView(int position, View convertView, ViewGroup parent) {
      if (convertView == null)
      {
        TextView theView = new TextView(Updates.this.getActivity().getBaseContext());
        theView.setTextColor(0xff330000);
        theView.setText(items.get(position).title);
        theView.setMinHeight(50);
        final int index = position;
        theView.setOnClickListener(new OnClickListener(){

           
          public void onClick(View view) {
            AlertDialog.Builder builder = new AlertDialog.Builder(Updates.this.getActivity());
            builder.setTitle(items.get(index).title)
                .setMessage(items.get(index).description)
                .setPositiveButton("Read on BT's site", new DialogInterface.OnClickListener(){

                   
                  public void onClick(DialogInterface dialog,
                      int which) {
                    Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(items.get(index).link));
                    Updates.this.getActivity().startActivity(intent);
                  }
                  
                })
                .setNegativeButton("Close", new DialogInterface.OnClickListener(){

                   
                  public void onClick(DialogInterface dialog,
                      int which) {
                    dialog.dismiss();
                  }
                  
                });
            builder.show();
          }
          
        });
        return theView;
      }
      else
      {
        ((TextView)convertView).setText(items.get(position).title);
        return convertView;
      }
    }
  }
  private final int settingsId = 1;
  @Override
  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {

    MenuItem addFavItem = menu.add(Menu.NONE, settingsId, settingsId,
        "Settings");
    addFavItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {
    case settingsId:
      Intent i = new Intent(this.getActivity(), SettingsActivity.class);
      startActivity(i);
      return true;
    }
    return false;
  }

}
Java Source Code List
