Android Using Weather API'S of yahoo

Please  read the doc at http://developer.yahoo.com/weather/

and have close look on the apis

http://where.yahooapis.com/geocode?q=ahmedabad=%5Byourappidhere%5D

http://weather.yahooapis.com/forecastrss?w=2502265

Make a new project and have the MainActivity with following code


package com.exercise.AndroidYahooWeatherDOM;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class AndroidYahooWeatherDOMActivity extends Activity {

TextView weather;

class MyWeather{
String description;
String city;
String region;
String country;

String windChill;
String windDirection;
String windSpeed;

String sunrise;
String sunset;

String conditiontext;
String conditiondate;

public String toString(){

return "\n- " + description + " -\n\n"
+ "city: " + city + "\n"
+ "region: " + region + "\n"
+ "country: " + country + "\n\n"

+ "Wind\n"
+ "chill: " + windChill + "\n"
+ "direction: " + windDirection + "\n"
+ "speed: " + windSpeed + "\n\n"

+ "Sunrise: " + sunrise + "\n"
+ "Sunset: " + sunset + "\n\n"

+ "Condition: " + conditiontext + "\n"
+ conditiondate +"\n";

}
}

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        weather = (TextView)findViewById(R.id.weather);
        
        
        String weatherString = QueryYahooWeather();
        Document weatherDoc = convertStringToDocument(weatherString);

        MyWeather weatherResult = parseWeather(weatherDoc);
        weather.setText(weatherResult.toString());
    }
    
    private MyWeather parseWeather(Document srcDoc){
   
    MyWeather myWeather = new MyWeather();
   
    //<description>Yahoo! Weather for New York, NY</description>
    myWeather.description = srcDoc.getElementsByTagName("description")
    .item(0)
    .getTextContent();
   
    //<yweather:location city="New York" region="NY" country="United States"/>
    Node locationNode = srcDoc.getElementsByTagName("yweather:location").item(0);
    myWeather.city = locationNode.getAttributes()
.getNamedItem("city")
.getNodeValue()
.toString();
myWeather.region = locationNode.getAttributes()
.getNamedItem("region")
.getNodeValue()
.toString();
myWeather.country = locationNode.getAttributes()
.getNamedItem("country")
.getNodeValue()
.toString();

//<yweather:wind chill="60" direction="0" speed="0"/>
Node windNode = srcDoc.getElementsByTagName("yweather:wind").item(0);
myWeather.windChill = windNode.getAttributes()
.getNamedItem("chill")
.getNodeValue()
.toString();
myWeather.windDirection = windNode.getAttributes()
.getNamedItem("direction")
.getNodeValue()
.toString();
myWeather.windSpeed = windNode.getAttributes()
.getNamedItem("speed")
.getNodeValue()
.toString();

//<yweather:astronomy sunrise="6:52 am" sunset="7:10 pm"/>
Node astronomyNode = srcDoc.getElementsByTagName("yweather:astronomy").item(0);
myWeather.sunrise = astronomyNode.getAttributes()
.getNamedItem("sunrise")
.getNodeValue()
.toString();
myWeather.sunset = astronomyNode.getAttributes()
.getNamedItem("sunset")
.getNodeValue()
.toString();

//<yweather:condition text="Fair" code="33" temp="60" date="Fri, 23 Mar 2012 8:49 pm EDT"/>
Node conditionNode = srcDoc.getElementsByTagName("yweather:condition").item(0);
myWeather.conditiontext = conditionNode.getAttributes()
.getNamedItem("text")
.getNodeValue()
.toString();
myWeather.conditiondate = conditionNode.getAttributes()
.getNamedItem("date")
.getNodeValue()
.toString();

    return myWeather;
    }
    
    private Document convertStringToDocument(String src){
    Document dest = null;
   
    DocumentBuilderFactory dbFactory =
    DocumentBuilderFactory.newInstance();
    DocumentBuilder parser;

    try {
    parser = dbFactory.newDocumentBuilder();
dest = parser.parse(new ByteArrayInputStream(src.getBytes()));
} catch (ParserConfigurationException e1) {
e1.printStackTrace();
Toast.makeText(AndroidYahooWeatherDOMActivity.this, 
    e1.toString(), Toast.LENGTH_LONG).show();
} catch (SAXException e) {
e.printStackTrace();
Toast.makeText(AndroidYahooWeatherDOMActivity.this, 
    e.toString(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(AndroidYahooWeatherDOMActivity.this, 
    e.toString(), Toast.LENGTH_LONG).show();
}
   
    return dest;
    }
    
    private String QueryYahooWeather(){
    // use the api to get WOEID which i used directly in this demo
    //http://where.yahooapis.com/geocode?q=bangalore=%5Byourappidhere%5D
    String qResult = "";
    String queryString = "http://weather.yahooapis.com/forecastrss?w=2295420";
   
    HttpClient httpClient = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(queryString);
        
        try {
        HttpEntity httpEntity = httpClient.execute(httpGet).getEntity();
       
        if (httpEntity != null){
        InputStream inputStream = httpEntity.getContent();
        Reader in = new InputStreamReader(inputStream);
        BufferedReader bufferedreader = new BufferedReader(in);
        StringBuilder stringBuilder = new StringBuilder();
       
        String stringReadLine = null;

        while ((stringReadLine = bufferedreader.readLine()) != null) {
        stringBuilder.append(stringReadLine + "\n");
        }
       
        qResult = stringBuilder.toString();
        }

} catch (ClientProtocolException e) {
e.printStackTrace();
Toast.makeText(AndroidYahooWeatherDOMActivity.this, 
    e.toString(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(AndroidYahooWeatherDOMActivity.this, 
    e.toString(), Toast.LENGTH_LONG).show();
}
   
        return qResult;
    }
}

the main.xml is as shown below


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="hello buddy" />
    <ScrollView 
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">
        <TextView
            android:id="@+id/weather"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" />
    </ScrollView>

</LinearLayout>