Android HttpClient with XmlPullParser and Google Weather API

안드로이드에서 HttpClient, XmlPullParser를 이용하여 Google Weather API에서 날씨를 가져와서 파싱하는 예

현재의 날씨 중에서 풍향, 풍속만을 추출하여 TextView에 출력하는 내용

res/layout/main.xml

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

    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

            <TextView
                android:id="@+id/textView1"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="TextView" />

    </ScrollView>

</LinearLayout>

MainActivity.java

package com.example.androidapp;
import java.io.*;

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.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;

import android.app.*;
import android.os.*;
import android.util.*;
import android.widget.*;

public class MainActivity extends Activity {
	
	TextView tv;
	Handler handler = new Handler();
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv = (TextView) findViewById(R.id.textView1); 
        /* 네트워크 연결 및 요청, 응답은 유저 쓰레드에서 이루어지도록 해야 한다(강제규정) */
        new Thread() {
        	public void run() {
        		connect();
        	}
        }.start();
    }
    
    String wind_condition;
    private void connect() {
    	try{
    		HttpClient httpClient = new DefaultHttpClient();
    		HttpGet httpGet = new HttpGet("http://www.google.co.kr/ig/api?weather=seoul,korea");
    		HttpResponse response = httpClient.execute(httpGet);
    		
    		InputStream is = response.getEntity().getContent();

    		XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
    		factory.setNamespaceAware(true);
    		XmlPullParser parser = factory.newPullParser();
    		parser.setInput(is, "euc-kr");
    		int eventType = parser.getEventType();
    		String tagName = null;
    		while(eventType != XmlPullParser.END_DOCUMENT) {
    			if(eventType == XmlPullParser.START_TAG) {
    				tagName = parser.getName();
    				Log.e("태그이름", tagName);
    				if(tagName.equals("wind_condition")) {
    					wind_condition = parser.getAttributeValue(0);
                               /* 화면의 갱신은 반드시 메인 쓰레드에서 수행해야 하므로 메인 쓰레드에게 Runnable 객체를 전달한다 */
    					handler.post(new Runnable() {
    		    			    public void run() {
    		    				tv.setText(wind_condition);
    		    			    }
    		    		        });
    				        break;
    				}
    			}
    			eventType = parser.next();
    		} // end of while()
    	}catch(Exception ex) {
    		ex.printStackTrace();
    		Log.e("접속오류", ex.toString());
    	}
    }

}

Google Weather API에서 제공하는 날씨정보

<?xml version="1.0"?>
<xml_api_reply version="1">
<weather module_id="0" tab_id="0" mobile_row="0" mobile_zipped="1" row="0" section="0">
<forecast_information>
<city data="seoul,korea"/>
<postal_code data="seoul,korea"/>
<latitude_e6 data=""/>
<longitude_e6 data=""/>
<forecast_date data="2012-08-21"/>
<current_date_time data="1970-01-01 00:00:00 +0000"/>
<unit_system data="SI"/>
</forecast_information>
<current_conditions>
<condition data="이슬비"/>
<temp_f data="77"/>
<temp_c data="25"/>
<humidity data="습도: 83%"/>
<icon data="/ig/images/weather/mist.gif"/>
<wind_condition data="바람: 남풍, 19 km/h"/>
</current_conditions>
<forecast_conditions>
<day_of_week data="화"/>
<low data="22"/>
<high data="28"/>
<icon data="/ig/images/weather/thunderstorm.gif"/>
<condition data="강우(천둥, 번개 동반)"/>
</forecast_conditions>
<forecast_conditions>
<day_of_week data="수"/>
<low data="21"/>
<high data="25"/>
<icon data="/ig/images/weather/thunderstorm.gif"/>
<condition data="강우(천둥, 번개 동반)"/>
</forecast_conditions>
<forecast_conditions>
<day_of_week data="목"/>
<low data="18"/>
<high data="27"/>
<icon data="/ig/images/weather/chance_of_storm.gif"/>
<condition data="한때 비바람"/>
</forecast_conditions>
<forecast_conditions>
<day_of_week data="금"/>
<low data="21"/>
<high data="26"/>
<icon data="/ig/images/weather/chance_of_storm.gif"/>
<condition data="한때 비바람"/>
</forecast_conditions>
</weather>
</xml_api_reply>