如何找到城市温度经度和纬度的Andr​​oid？ [英] How to find city temperature by longitude and latitude in android?

问题描述

如何找到城市温度经度和纬度.... 有谁知道有一个API或我可以使用基于地理坐标来显示天气小部件一个服务？

how to find city temperature by longitude and latitude.... Does anyone know of a service with an API or a widget that I could use to display weather based on geographical coordinates?

推荐答案

我们可以通过这个find_Location类发现城市温度。其中首先发现这个城市的位置使用由经度和纬度的Andr​​oid？而在这之后使用的方法sendToURL向寻找利用GoogleXML温度的 http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query=

we can find city temp by using this find_Location Class. in which firstly find the city location by use by longitude and latitude in android? And after that use the method SendToUrl to find the temperature by use GoogleXML "http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query="

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();
    }
}

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