如何在android中找到经度和纬度的城市温度？

Question

如何通过经度和纬度找到城市温度....有没有人知道我可以使用API​​或小部件的服务来显示基于地理坐标的天气？

Answer 1

我们可以使用这个find_Location类找到city temp.其中首先通过android中的经度和纬度使用来查找城市位置？然后使用方法SendToUrl通过使用GoogleXML" http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query= " 查找温度

public void find_Location(Context con)
    {
        Log.d("Find Location", "in find_location");
        this.con=con;
        String location_context = Context.LOCATION_SERVICE;
        locationManager = (LocationManager)con.getSystemService(location_context);

        List<String> providers = locationManager.getProviders(true);
       for (String provider : providers) 
       {
           locationManager.requestLocationUpdates(provider, 1000, 0,new LocationListener()
           {
               public void onLocationChanged(Location location) {}
               public void onProviderDisabled(String provider){}
               public void onProviderEnabled(String provider){}
               public void onStatusChanged(String provider, int status,Bundle  extras){}
           });
           Location location = locationManager.getLastKnownLocation(provider);
           if (location != null)
           {
               latitude = location.getLatitude();
               longitude = location.getLongitude();
               addr=ConvertPointToLocation(latitude,longitude);
                       String temp_c=SendToUrl(addr);

           } 
       }
    }

    public String ConvertPointToLocation(double pointlat,double pointlog) {

        String address = "";
        Geocoder geoCoder = new Geocoder(con,
                Locale.getDefault());
        try {
            List<Address> addresses = geoCoder.getFromLocation(pointlat,pointlog, 1);
            if (addresses.size() > 0) {
                for (int index = 0; index < addresses.get(0)
                        .getMaxAddressLineIndex(); index++)
                    address += addresses.get(0).getAddressLine(index) + " ";
            }
        }
        catch (IOException e) {
            e.printStackTrace();
        }
        return address;
    }  

    private String  SendToUrl(String string) {
        // TODO Auto-generated method stub

          try{
              string=string.replace(" ","%20");

        String queryString="http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query="+string;
        url= new URL(queryString);

        conec= url.openConnection();
        stream = conec.getInputStream();
        xpp = XmlPullParserFactory.newInstance().newPullParser();
        xpp.setInput(stream, null);
        int eventType = xpp.getEventType();
        while(eventType != XmlPullParser.END_DOCUMENT)
        {
              if(eventType == XmlPullParser.START_TAG)
            {String elementName = xpp.getName();
                  if("temp_c".equals(elementName))
                    {
                               int acount=xpp.getAttributeCount();
                   for(int x=0;x<acount;x++) 
            {
            xpp.getAttributeValue(x);          
                        String str=xpp.getAttributeValue(x);
                     return str;
         }  

          }
      }
      eventType = xpp.next();
    }
}