天气查询

[android]代码库
CityWeather.zip(免费下载)[18 次下载]
package sun.zone.android.CityWeather;
 
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
 
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
 
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
 
 
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
 
public class CityWeather extends Activity
{
     
    private static final int  First=Menu.FIRST;
    private static final int  Second=Menu.FIRST+1;
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
         
        //界面初始化方法
        init();
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu){   
        menu.add(0,First,1,"播放音乐");
        menu.add(0,Second,2,"停止播放");  
                  return true;   
           }
    @Override
    public boolean onOptionsItemSelected(MenuItem item){
        // TODO Auto-generated method stub
        if(item.getItemId()==1){
            //开始播放音乐
             
        }else if(item.getItemId()==2){
            //暂停音乐
             
        }
        return super.onOptionsItemSelected(item);
    }
    //界面初始化方法实现
    private void init()
    {
        System.out.println("开始界面初始化11111");
        //选择城市的下拉列表
        Spinner city_spr = (Spinner) findViewById(R.id.Spinner01);
        //定义适配器并设置适配器
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, ConstData.city);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        //绑定适配器
        city_spr.setAdapter(adapter);
        //获取按钮对象并添加监听
        Button submit = (Button) findViewById(R.id.Button01);
        submit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v)
            {
                Spinner spr = (Spinner) findViewById(R.id.Spinner01);
                Long l = spr.getSelectedItemId();
                int index = l.intValue();
                //获得代表城市名的代码
                String cityParamString = ConstData.cityCode[index];
 
                try
                {
                    /*
                     * 通过URL获取网络资源
                     * 由于访问网络，所以要在AndroidManifest.xml中加入访问因特网服务的权限
                     * <uses-permission android:name="android.permission.INTERNET" />
                     */
                    URL url = new URL(ConstData.queryString + cityParamString);
                    //获取网络资源信息
                    getCityWeather(url);
                }
                catch (Exception e)
                {
                    Log.e("CityWeather", e.toString());
                }
                 
            }
        });
        //获取按钮对象并添加监听
        Button submit_input = (Button) findViewById(R.id.Button001);
        submit_input.setOnClickListener(new OnClickListener()
        {
            public void onClick(View v) 
            {
                EditText inputcity = (EditText) findViewById(R.id.EditText001);
                String tmp = inputcity.getText().toString();
                 
                try
                {
                    URL url = new URL(ConstData.queryString_intput + tmp);
                    getCityWeather(url);
                }
                catch (Exception e)
                {
                    Log.e("CityWeather", e.toString());
                }
            }
             
        });
    }
    // 更新显示实时天气信息
    private void updateWeatherInfoView(int aResourceID, WeatherCurrentCondition aWCC) throws MalformedURLException
    {
 
        URL imgURL = new URL("http://www.google.com/" + aWCC.getIcon());
        ((SingleWeatherInfoView) findViewById(aResourceID)).setWeatherIcon(imgURL);
        ((SingleWeatherInfoView) findViewById(aResourceID)).setWeatherString(aWCC.toString());
    }
    // 更新显示天气预报
    private void updateWeatherInfoView(int aResourceID, WeatherForecastCondition aWFC) throws MalformedURLException
    {
 
        URL imgURL = new URL("http://www.google.com/" + aWFC.getIcon());
        ((SingleWeatherInfoView) findViewById(aResourceID)).setWeatherIcon(imgURL);
        ((SingleWeatherInfoView) findViewById(aResourceID)).setWeatherString(aWFC.toString());
    }   
    //获取天气信息
    //通过网络获取数据
    //由于获得的资源为xml文件则需要传递给XMLReader解析
    public void getCityWeather(URL url)
    {
        try
        {
            System.out.println("获取城市天气2222");
            //获取解析xml文件对象
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser sp = spf.newSAXParser();
            XMLReader xr = sp.getXMLReader();
             
             
            //获取Handler对象并设置
            GoogleWeatherHandler gwh = new GoogleWeatherHandler();
            xr.setContentHandler(gwh);
            //打开网络资源连接并转化为流
            InputStreamReader isr = new InputStreamReader(url.openStream(), "GBK");
            InputSource is = new InputSource(isr);
            System.out.println("开始解析xml文件33333333");
            //解析数据流信息
            xr.parse(is);
 
            WeatherSet ws = gwh.getMyWeatherSet();
            //更新天气信息视图
            //显示实时天气信息
            updateWeatherInfoView(R.id.weather_0, ws.getMyCurrentCondition());
            //显示未来四天天气信息
            updateWeatherInfoView(R.id.weather_1, ws.getMyForecastConditions().get(0));
            updateWeatherInfoView(R.id.weather_2, ws.getMyForecastConditions().get(1));
            updateWeatherInfoView(R.id.weather_3, ws.getMyForecastConditions().get(2));
            updateWeatherInfoView(R.id.weather_4, ws.getMyForecastConditions().get(3));
        }
        catch (Exception e)
        {
            Log.e("CityWeather", e.toString());
        }
    }
}
[代码运行效果截图]
[源代码打包下载]
CityWeather.zip(免费下载)[18 次下载]
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