Android HttpClient, Google Weather API, XmlPullParser example

안드로이드에서 HttpClient, XmlPullParser, Google Weather API를 이용하여 현재날씨와 날씨 아이콘을 출력하는 예

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" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center"
        android:text="서울의 오늘 날씨" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_gravity="center"
        android:src="@drawable/ic_launcher" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="30dip" >

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="온도 : " />

        <TextView
            android:id="@+id/tvTemp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="3"
            android:text="TextView" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="30dip" >

        <TextView
            android:id="@+id/textView4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="습도 : " />

        <TextView
            android:id="@+id/tvHumidity"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="3"
            android:text="TextView" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="30dip" >

        <TextView
            android:id="@+id/textView6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="바람 :" />

        <TextView
            android:id="@+id/tvWind"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="3"
            android:text="TextView" />

    </LinearLayout>

</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.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.*;
import android.util.*;
import android.widget.*;

public class MainActivity extends Activity {
	
	ImageView iv;
	TextView tvTemp, tvHumidity, tvWind;
	Handler handler = new Handler();
	Bitmap icon;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        iv = (ImageView) findViewById(R.id.imageView1);
        tvTemp = (TextView) findViewById(R.id.tvTemp);
        tvHumidity = (TextView) findViewById(R.id.tvHumidity);
        tvWind = (TextView) findViewById(R.id.tvWind); 
        new Thread() {
        	public void run() {
        		connect();
        	}
        }.start();
    }
    
    String temp_c, humidity, wind_condition, icon_path;
    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();
    				if(tagName.equals("current_conditions")) {
    					parser.next(); parser.next(); parser.next();
    					parser.next(); parser.next();
    					tagName = parser.getName();
    					//Log.e("태그이름", tagName);
	    				if(tagName.equals("temp_c")) {
	    					temp_c = parser.getAttributeValue(0);
	    					Log.e("온도", temp_c);
	    					parser.next(); parser.next();
	    					humidity = parser.getAttributeValue(0);
	    					Log.e("습도", humidity);
	    					parser.next(); parser.next();
	    					icon_path = parser.getAttributeValue(0);
	    					icon = getIcon(icon_path);
	    					Log.e("아이콘", icon_path);
	    					parser.next(); parser.next();
	    					wind_condition = parser.getAttributeValue(0);
	    					Log.e("바람", wind_condition);

	    					handler.post(new Runnable() {
	    		    			    public void run() {
	    		    				iv.setImageBitmap(icon);
	    		    				tvTemp.setText(temp_c);
	    		    				tvHumidity.setText(humidity);
	    		    				tvWind.setText(wind_condition);
	    		    			    }
	    		    		        });
	    					break;
	    				}
    				}
    			}
    			eventType = parser.next();
    		} // end of while()
    	}catch(Exception ex) {
    		ex.printStackTrace();
    		Log.e("접속오류", ex.toString());
    	}
    }

    private Bitmap getIcon(String icon_path) { // 아이콘 경로에서 아이콘을 가져와 리턴한다
    	try{
    		HttpClient httpClient = new DefaultHttpClient();
    		HttpGet httpGet = new HttpGet("http://www.google.co.kr"+icon_path);
    		HttpResponse response = httpClient.execute(httpGet);
    		InputStream is = response.getEntity().getContent();
    		return BitmapFactory.decodeStream(is);
    	}catch(Exception ex) {
    		ex.printStackTrace();
    	}
    	return null;
    }
}