從經緯度獲取地址

我想從android中的緯度和經度獲取位置地址。我的代碼如下。從經緯度獲取地址

public String getAddress(double latitude, double longitude) { 
     Geocoder myLocation = new Geocoder(this, Locale.getDefault()); 
     List<Address> myList = null; 
     try { 
      myList = myLocation.getFromLocation(latitude,longitude,1); 
     } catch (NumberFormatException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     String address = myList.get(0).getAddressLine(0); 
     return address; 
    }

但不知何故，我得到myList = myLocation.getFromLocation(latitude,longitude,1); 返回null可能是什麼問題？

最好，

來源

2013-05-12 Bryanyan

的可能重複[如何從緯度和經度完整地址？（http://stackoverflow.com/questions/9409195/how-to-get-complete-address-from-latitude-and-經度） – Raghunandan 2013-05-12 06:01:16

這很常見。如果服務器沒有返回任何值或超載，那麼您將得到Null。

我面臨類似的問題，並獲得解決方案後的帖子。

http://girishbhutiya.blogspot.in/2010/04/reverse-geocoding-in-android-2-2-froyo-api-level-greater-than-8.html

來源

2013-05-12 06:02:16

用於工作的代碼。這時服務器看起來有些問題。 – Bryanyan 2013-05-12 06:22:10

試試下面的代碼。

try { 
        // Get the location manager 
     locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); 
         Criteria criteria = new Criteria(); 
         bestProvider = locationManager.getBestProvider(criteria, false); 
         Location location = locationManager 
           .getLastKnownLocation(bestProvider); 
         double lat = location.getLatitude(); 
         double lon = location.getLongitude(); 
         Geocoder gc = new Geocoder(this); 
         List<Address> lstAdd = gc.getFromLocation(lat, lon, 1); 
         Address ad = lstAdd.get(0); 
         String str = ad.getAddressLine(0); 
        Toast tst = Toast.makeText(this, "Your current location is " + str, 
          Toast.LENGTH_LONG); 
        tst.show(); 
    } catch (Exception e) { 
        Toast tst = Toast.makeText(this,"Please check your gps settings", 
          Toast.LENGTH_LONG); 
        tst.show(); 
    }

但是，當然嘗試在真正的設備上。

來源

2013-05-12 05:51:35 CRUSADER

是的，我在真正的設備上工作。同樣的問題happended.I <使用權限android：name =「android.permission.INTERNET」/><使用權限android：name =「android.permission.ACCESS_FINE_LOCATION」/>我還缺少什麼。 – Bryanyan 2013-05-12 06:01:05

您可以嘗試使用Google reserve-geocoding 如果你想找到的地方，儘量google place

來源

2013-05-12 06:04:06 Dolphin

您可以通過谷歌API比如帶參數插入您的經度和緯度和發送請求到服務器和服務器使用用地址給出答覆。

public static String getAddressUrl（Context context） String responseText = null;

/*String latitude="38.89"; 
    String longitude ="-77.03";*/ 
    Log.v(TAG , "Latitude is: " + latitude + "Longitude is:"+ longitude); 
    StringBuilder sbuilder=new StringBuilder(); 
     String googleurl="http://maps.google.com/maps/geo?" 
    sbuilder.append(googleurl); 

    sbuilder.append("q="+latitude+","+longitude); 
    sbuilder.append("&amp;output=responseText&amp;sensor=true"); 
    String url=sbuilder.toString(); 

Log.v(TAG, "url is: "+url); 
    try { 
     DefaultHttpClient httpclient=new DefaultHttpClient(); 
     HttpPost httppost=new HttpPost(url); 
     HttpResponse httpresponse=httpclient.execute(httppost); 
     HttpEntity httpentity=httpresponse.getEntity(); 
     InputStream is=httpentity.getContent(); 
     BufferedReader reader=new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8); 
     StringBuilder sb=new StringBuilder(); 
     String line=null; 
    while((line=reader.readLine())!=null) 
    { 
     sb.append(line+"\n"); 

    } 
    is.close(); 
    responseText=sb.toString(); 
    } 
    catch(ClientProtocolException e) 
    { 
     e.printStackTrace(); 
    } 
    catch (IOException e) 
    { 
     e.printStackTrace(); 
    } 
    return responseText; 
    }

來源

2013-05-12 06:09:15

從經緯度獲取地址

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