¿Cómo obtener el nombre de la ciudad de las coordenadas de latitud y longitud en Google Maps?

¿Cómo puedo obtener el nombre de la ciudad en Google Maps si tengo coordenadas de latitud y longitud de una ciudad o área?

Intenté usar la latitud, la longitud y obtuve el país, pero no sé cómo obtener el nombre de la ciudad.

Desde un Geocoderobjeto, puede llamar al getFromLocation(double, double, int)método. Devolverá una lista de Addressobjetos que tienen un método getLocality().

Geocoder gcd = new Geocoder(context, Locale.getDefault());
List<Address> addresses = gcd.getFromLocation(lat, lng, 1);
if (addresses.size() > 0) {
    System.out.println(addresses.get(0).getLocality());
}
else {
   // do your stuff
}

Estoy usando este código. También puede hacer esto para obtener la ciudad y otros detalles sobre una latitud y longitud:

public class getReverseGeoCoding {
    private String Address1 = "", Address2 = "", City = "", State = "", Country = "", County = "", PIN = "";
    
    public void getAddress() {
        Address1 = "";
        Address2 = "";
        City = "";
        State = "";
        Country = "";
        County = "";
        PIN = "";
        
        try {
            
            JSONObject jsonObj = parser_Json.getJSONfromURL("http://maps.googleapis.com/maps/api/geocode/json?latlng=" + Global.curLatitude + ","
                    + Global.curLongitude + "&sensor=true&key=YOUR_API_KEY");
            String Status = jsonObj.getString("status");
            if (Status.equalsIgnoreCase("OK")) {
                JSONArray Results = jsonObj.getJSONArray("results");
                JSONObject zero = Results.getJSONObject(0);
                JSONArray address_components = zero.getJSONArray("address_components");
                
                for (int i = 0; i < address_components.length(); i++) {
                    JSONObject zero2 = address_components.getJSONObject(i);
                    String long_name = zero2.getString("long_name");
                    JSONArray mtypes = zero2.getJSONArray("types");
                    String Type = mtypes.getString(0);
                    
                    if (TextUtils.isEmpty(long_name) == false || !long_name.equals(null) || long_name.length() > 0 || long_name != "") {
                        if (Type.equalsIgnoreCase("street_number")) {
                            Address1 = long_name + " ";
                        } else if (Type.equalsIgnoreCase("route")) {
                            Address1 = Address1 + long_name;
                        } else if (Type.equalsIgnoreCase("sublocality")) {
                            Address2 = long_name;
                        } else if (Type.equalsIgnoreCase("locality")) {
                            // Address2 = Address2 + long_name + ", ";
                            City = long_name;
                        } else if (Type.equalsIgnoreCase("administrative_area_level_2")) {
                            County = long_name;
                        } else if (Type.equalsIgnoreCase("administrative_area_level_1")) {
                            State = long_name;
                        } else if (Type.equalsIgnoreCase("country")) {
                            Country = long_name;
                        } else if (Type.equalsIgnoreCase("postal_code")) {
                            PIN = long_name;
                        }
                    }
                    
                    // JSONArray mtypes = zero2.getJSONArray("types");
                    // String Type = mtypes.getString(0);
                    // Log.e(Type,long_name);
                }
            }
            
        } catch (Exception e) {
            e.printStackTrace();
        }
        
    }
    
    public String getAddress1() {
        return Address1;
        
    }
    
    public String getAddress2() {
        return Address2;
        
    }
    
    public String getCity() {
        return City;
        
    }
    
    public String getState() {
        return State;
        
    }
    
    public String getCountry() {
        return Country;
        
    }
    
    public String getCounty() {
        return County;
        
    }
    
    public String getPIN() {
        return PIN;
        
    }
    
}

Para obtener más detalles sobre cómo obtener la clave de API de Google Map

JSON CLASSER CLASS

public class parser_Json {
    public static JSONObject getJSONfromURL(String url) {

        // initialize
        InputStream is = null;
        String result = "";
        JSONObject jObject = null;

        // http post
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(url);
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();

        } catch (Exception e) {
            Log.e("log_tag", "Error in http connection " + e.toString());
        }

        // convert response to string
        try {
            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();
            result = sb.toString();
        } catch (Exception e) {
            Log.e("log_tag", "Error converting result " + e.toString());
        }

        // try parse the string to a JSON object
        try {
            jObject = new JSONObject(result);
        } catch (JSONException e) {
            Log.e("log_tag", "Error parsing data " + e.toString());
        }

        return jObject;
    }

}

Puede obtener más información de esta pregunta: Obtenga la dirección particular usando latitud y longitud

Prueba esto

  List<Address> list = geoCoder.getFromLocation(location
            .getLatitude(), location.getLongitude(), 1);
    if (list != null & list.size() > 0) {
        Address address = list.get(0);
        result = address.getLocality();
        return result;

intente debajo del código espero usarlo completo para usted: -

CityAsyncTask cst = new CityAsyncTask(HomeScreenUserLocation.this,
                latitude, longitude);
        cst.execute();

        String lo = null;
        try {
            lo = cst.get().toString();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ExecutionException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

y AsyncTask

public class CityAsyncTask extends AsyncTask<String, String, String> {
    Activity act;
    double latitude;
    double longitude;

    public CityAsyncTask(Activity act, double latitude, double longitude) {
        // TODO Auto-generated constructor stub
        this.act = act;
        this.latitude = latitude;
        this.longitude = longitude;
    }

    @Override
    protected String doInBackground(String... params) {
        String result = "";
        Geocoder geocoder = new Geocoder(act, Locale.getDefault());
        try {
            List<Address> addresses = geocoder.getFromLocation(latitude,
                    longitude, 1);
            Log.e("Addresses", "-->" + addresses);
            result = addresses.get(0).toString();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

    @Override
    protected void onPostExecute(String result) {
        // TODO Auto-generated method stub
        super.onPostExecute(result);

    }
}

Simplemente use este método y pase su lat, largo.

public static void getAddress(Context context, double LATITUDE, double LONGITUDE) {

//Set Address
try {
    Geocoder geocoder = new Geocoder(context, Locale.getDefault());
    List<Address> addresses = geocoder.getFromLocation(LATITUDE, LONGITUDE, 1);
    if (addresses != null && addresses.size() > 0) {



        String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
        String city = addresses.get(0).getLocality();
        String state = addresses.get(0).getAdminArea();
        String country = addresses.get(0).getCountryName();
        String postalCode = addresses.get(0).getPostalCode();
        String knownName = addresses.get(0).getFeatureName(); // Only if available else return NULL

        Log.d(TAG, "getAddress:  address" + address);
        Log.d(TAG, "getAddress:  city" + city);
        Log.d(TAG, "getAddress:  state" + state);
        Log.d(TAG, "getAddress:  postalCode" + postalCode);
        Log.d(TAG, "getAddress:  knownName" + knownName);

    }
} catch (IOException e) {
    e.printStackTrace();
}
    return;
}

 private class MatchingNearByLocationTask extends
        AsyncTask<Void, Void, Void> 
 {

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        // Showing progress dialog

        progressDialog = new ProgressDialog(mContext);
        progressDialog.setMessage("Loading...");
        progressDialog.setCancelable(true);
        progressDialog.show();

    }

    @Override
    protected Void doInBackground(Void... arg0) {

        jsonStr = getLocationInfo(Latitude, Longitude).toString();
        if (jsonStr != null) {
            Log.i("location--??", jsonStr);

            JSONObject jsonObj;
            try {
                jsonObj = new JSONObject(jsonStr);

                String Status = jsonObj.getString("status");
                if (Status.equalsIgnoreCase("OK")) {
                    JSONArray Results = jsonObj.getJSONArray("results");
                    JSONObject zero = Results.getJSONObject(0);
                    JSONArray address_components = zero
                            .getJSONArray("address_components");

                    for (int i = 0; i < address_components.length(); i++) {
                        JSONObject zero2 = address_components
                                .getJSONObject(i);
                        String long_name = zero2.getString("long_name");
                        JSONArray mtypes = zero2.getJSONArray("types");
                        String Type = mtypes.getString(0);
                        if (Type.equalsIgnoreCase("administrative_area_level_2")) {
                            // Address2 = Address2 + long_name + ", ";
                            String City = long_name;
                            Log.d(" CityName --->", City + "");
                        }
                    }
                }

            }

            catch (JSONException e) {

                e.printStackTrace();
            }

        }

        return null;
    }

    @Override
    protected void onPostExecute(Void result) {
        super.onPostExecute(result);
        // Dismiss the progress dialog
        if (progressDialog.isShowing()) {
            progressDialog.dismiss();
        }

    }

    @Override
    protected void onCancelled() {

        super.onCancelled();
        progressDialog.dismiss();

    }

}




private JSONObject getLocationInfo(double lat, double lng) {

    HttpGet httpGet = new HttpGet(
            "http://maps.googleapis.com/maps/api/geocode/json?latlng="
                    + lat + "," + lng + "&sensor=false");
    HttpClient client = new DefaultHttpClient();
    HttpResponse response;
    StringBuilder stringBuilder = new StringBuilder();

    try {
        response = client.execute(httpGet);
        HttpEntity entity = response.getEntity();
        InputStream stream = entity.getContent();
        int b;
        while ((b = stream.read()) != -1) {
            stringBuilder.append((char) b);
        }
    } catch (ClientProtocolException e) {
    } catch (IOException e) {
    }

    JSONObject jsonObject = new JSONObject();
    try {
        jsonObject = new JSONObject(stringBuilder.toString());
    } catch (JSONException e) {
        e.printStackTrace();
    }

    return jsonObject;
}

Prueba esto

var geocoder;
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(latitude, longitude);

geocoder.geocode(
{'latLng': latlng}, 
function(results, status) {
    if (status == google.maps.GeocoderStatus.OK) {
            if (results[0]) {
                var add= results[0].formatted_address ;
                var  value=add.split(",");

                count=value.length;
                country=value[count-1];
                state=value[count-2];
                city=value[count-3];
                alert("city name is: " + city);
            }
            else  {
                alert("address not found");
            }
    }
     else {
        alert("Geocoder failed due to: " + status);
    }
}

);

Tengo una nueva forma de resolver este problema. Aquí he usado el servicio google http para obtener información total de la ubicación en función de la longitud y la latitud. Solo necesita pasar la latitud y la longitud en la url y su clave de API (ej: latlng = 21.1497409, 79.08747970000002 & key = SU CLAVE API). Aquí está mi servicio en ExampleServiceclase

 getService(url) {

    return this.http.get(url).map((data: any) => data.json())

}

esto lo puede colocar en cualquier lugar que desee y simplemente llame al servicio debajo del componente donde necesita datos de ubicación

this._exampleService.getService("https://maps.googleapis.com/maps/api/geocode/json?latlng=21.1497409, 79.08747970000002&key=YOUR API KEY").subscribe(getplaceData => {
            var placeDataDest: any;
            placeDataDest = getplaceData;
            console.log("i got place id yeee " + placeDataDest['results'][0]['place_id']);
            console.log("i got place details yeee " + placeDataDest['results']);
        });

encuentra el nombre de la ciudad de manera similar ... espero que te sea útil

Por favor, consulte el siguiente código

 Geocoder geocoder = new Geocoder(this, Locale.getDefault());
     List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
     String cityName = addresses.get(0).getAddressLine(0);
     String stateName = addresses.get(0).getAddressLine(1);
     String countryName = addresses.get(0).getAddressLine(2);

Puede usar esto si tiene una lista:

Address address = list.get(0);
String cityname = address.getLocality();

 com.alibaba.fastjson.JSONObject jsonObject = com.alibaba.fastjson.JSONObject.parseObject(data);
        if("OK".equals(jsonObject.getString("status"))){
            String formatted_address;
            JSONArray results = jsonObject.getJSONArray("results");
            if(results != null && results.size() > 0){
                com.alibaba.fastjson.JSONObject object = results.getJSONObject(0);
                String addressComponents = object.getString("address_components");
                formatted_address = object.getString("formatted_address");
                Log.e("amaya","formatted_address="+formatted_address+"--url="+url);
                if(findCity){
                    boolean finded = false;
                    JSONArray ac = JSONArray.parseArray(addressComponents);
                    if(ac != null && ac.size() > 0){
                        for(int i=0;i<ac.size();i++){
                            com.alibaba.fastjson.JSONObject jo = ac.getJSONObject(i);
                            JSONArray types = jo.getJSONArray("types");
                            if(types != null && types.size() > 0){
                                for(int j=0;j<ac.size();j++){
                                    String string = types.getString(i);
                                    if("administrative_area_level_1".equals(string)){
                                        finded = true;
                                        break;
                                    }
                                }
                            }
                            if(finded) break;
                        }
                    }
                    Log.e("amaya","city="+formatted_address);
                }else{
                    Log.e("amaya","poiName="+hotspotPoi.getPoi_name()+"--"+hotspotPoi);
                }
                if(hotspotPoi != null) hotspotPoi.setPoi_name(formatted_address);
                EventBus.getDefault().post(new AmayaEvent.GeoEvent(hotspotPoi));
            }
        }

Este es un método para analizar los datos de comentarios de Google.

intenta usar esta api:

URL ": http://maps.googleapis.com/maps/api/geocode/json?latlng= " + String.valueOf (yout_lattitude) + "," + String.valueOf (your_longitude)

Código de trabajo:

addresses = geocoder.getFromLocation(mMap.getCameraPosition().target.latitude, mMap.getCameraPosition().target.longitude, 1); // Here 1 represent max location result to returned, by documents it recommended 1 to 5

                String locality = addresses.get(0).getLocality(); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
                String subLocality = addresses.get(0).getSubLocality(); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
                //String address = addresses.get(0).getAddressLine(0); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
                String address1 = addresses.get(0).getAddressLine(1); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
                String address2 = addresses.get(0).getAddressLine(2); // If any additional address line present than only, check with max available address lines by getMaxAddressLineIndex()
                String city = addresses.get(0).getLocality();
                String state = addresses.get(0).getAdminArea();
                String country = addresses.get(0).getCountryName();
               // String postalCode = addresses.get(0).getPostalCode();
                String knownName = addresses.get(0).getFeatureName();

import org.json.JSONObject

fun parseLocation(response: String): GeoLocation? {

val geoCodes by lazy { doubleArrayOf(0.0, 0.0) }

val jObj = JSONObject(response)
if (jObj.has(KEY_RESULTS)) {

    val jArrResults = jObj.getJSONArray(KEY_RESULTS)
    for (i in 0 until jArrResults.length()) {
        val jObjResult = jArrResults.getJSONObject(i)
        //getting latitude and longitude
        if (jObjResult.has(KEY_GEOMETRY)) {
            val jObjGeometry = jObjResult.getJSONObject(KEY_GEOMETRY)

            if (jObjGeometry.has(KEY_LOCATION)) {
                val jObjLocation = jObjGeometry.getJSONObject(KEY_LOCATION)
                if (jObjLocation.has(KEY_LAT)) {
                    geoCodes[0] = jObjLocation.getDouble(KEY_LAT)
                }

                if (jObjLocation.has(KEY_LNG)) {
                    geoCodes[1] = jObjLocation.getDouble(KEY_LNG)
                }
            }
        }

        var administrativeAreaLevel1: String? = null

        //getting city
        if (jObjResult.has(KEY_ADDRESS_COMPONENTS)) {

            val jArrAddressComponents = jObjResult.getJSONArray(KEY_ADDRESS_COMPONENTS)
            for (i in 0 until jArrAddressComponents.length()) {

                val jObjAddressComponents = jArrAddressComponents.getJSONObject(i)
                if (jObjAddressComponents.has(KEY_TYPES)) {

                    val jArrTypes = jObjAddressComponents.getJSONArray(KEY_TYPES)
                    for (j in 0 until jArrTypes.length()) {

                        when (jArrTypes.getString(j)) {

                            VALUE_LOCALITY, VALUE_POSTAL_TOWN -> {
                                return GeoLocation(jObjAddressComponents.getString(KEY_LONG_NAME), *geoCodes)
                            }

                            ADMINISTRATIVE_AREA_LEVEL_1 -> {
                                administrativeAreaLevel1 = jObjAddressComponents.getString(KEY_LONG_NAME)
                            }

                            else -> {
                            }
                        }
                    }
                }
            }

            for (i in 0 until jArrAddressComponents.length()) {

                val jObjAddressComponents = jArrAddressComponents.getJSONObject(i)
                if (jObjAddressComponents.has(KEY_TYPES)) {

                    val jArrTypes = jObjAddressComponents.getJSONArray(KEY_TYPES)

                    val typeList = ArrayList<String>()
                    for (j in 0 until jArrTypes.length()) {
                        typeList.add(jArrTypes.getString(j))
                    }

                    if (typeList.contains(VALUE_SUBLOCALITY)) {
                        var hasSubLocalityLevel = false
                        typeList.forEach { type ->
                            if (type.contains(VALUE_SUBLOCALITY_LEVEL)) {
                                hasSubLocalityLevel = true

                                if (type == VALUE_SUBLOCALITY_LEVEL_1) {
                                    return GeoLocation(jObjAddressComponents.getString(KEY_LONG_NAME), *geoCodes)
                                }
                            }
                        }
                        if (!hasSubLocalityLevel) {
                            return GeoLocation(jObjAddressComponents.getString(KEY_LONG_NAME), *geoCodes)
                        }
                    }
                }
            }
        }

        if (geoCodes.isNotEmpty()) return GeoLocation(administrativeAreaLevel1, geoCodes = *geoCodes)
     }
   }
return null
}

data class GeoLocation(val latitude: Double = 0.0, val longitude: Double = 0.0, val city: String? = null) : Parcelable {

constructor(city: String? = null, vararg geoCodes: Double) : this(geoCodes[0], geoCodes[1], city)

constructor(source: Parcel) : this(source.readDouble(), source.readDouble(), source.readString())

companion object {
    @JvmField
    val CREATOR = object : Parcelable.Creator<GeoLocation> {

        override fun createFromParcel(source: Parcel) = GeoLocation(source)

        override fun newArray(size: Int): Array<GeoLocation?> = arrayOfNulls(size)
    }
}

override fun writeToParcel(dest: Parcel, flags: Int) {
    dest.writeDouble(latitude)
    dest.writeDouble(longitude)
    dest.writeString(city)
}

override fun describeContents() = 0
}

Estoy en brasil Debido a los detalles regionales, a veces la ciudad se presenta de diferentes maneras. Creo que es lo mismo en India y otros países. Entonces, para evitar errores, hago esta verificación:

private fun getAddress(latLng: LatLng): String {
    // 1
    val geocoder = Geocoder(this)
    val addresses: List<Address>?
    var city = "no"

    try {

        addresses = geocoder.getFromLocation(latLng.latitude, latLng.longitude, 1)

        if (null != addresses && !addresses.isEmpty()) { //prevent from error
             //sometimes the city comes in locality, sometimes in subAdminArea.
            if (addresses[0].locality == null) {

                city = addresses[0].subAdminArea
            } else {
                city = addresses[0].locality
            }

            }
    } catch (e: IOException) {
        Log.e("MapsActivity", e.localizedMessage)
    }

    return city
    }

También puede verificar si la ciudad devuelve "no". Si es así, no fue posible obtener la ubicación del usuario. Espero eso ayude.