我如何从经度和纬度获取地址位置

Question

i already have the latitude and longitude, i am getting almost all the location but the postalcode is always null, and the address give the street name and number i want this separate. Well this is my code... thanks for your help..

Geocoder geocoder;
          List<Address> addresses;
          geocoder = new Geocoder(this, Locale.getDefault());
          try {
            addresses = geocoder.getFromLocation(lat, lng, 1);
            Address ad = addresses.get(0);
               address = ad.getAddressLine(0);
               country = ad.getCountryName();
               postalcode = addresses.get(0).getPostalCode();
               city = ad.getLocality();
               state = ad.getAdminArea();

Answer 1

Yes, Geocoder Address returns null for fields if it doesn't have value for particular field. Like you are getting null of postal code. Always do null check before using field value from Geocoder Address list.

Answer 2

What you're trying to do is called reverse geo-coding and you'll need to use a 3rd party service to be able to do this. Have a look at these links here .

Some of these services produce better results than others, but you can't rely on them. If you get a result back (or a partial one as you have) then great. But expect that you might not get anything back at all.