Googleマップの緯度と経度の座標から都市名を取得する方法は？
町または地域の緯度と経度の座標がある場合、Googleマップで都市名を取得するにはどうすればよいですか？
緯度と経度を使用してみましたが、国はわかりましたが、都市名を取得する方法がわかりません。
Geocoder オブジェクトから、 getFromLocation(double, double, int) メソッドを呼び出すことができます。 Address メソッドを持つオブジェクト getLocality() のリストを返します。
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
}
このコードを使用しています。緯度と経度に関する都市やその他の詳細を取得するためにこれを使用することもできます：
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");
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;
}
}
JSON PARSER 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;
}
}
この質問から詳細情報を入手できます。 緯度と経度を使用して特定の住所を取得
試してみてください
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;
このメソッドを使用して、緯度経度を渡すだけです。
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;
}
以下のコードを試してみてください：
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();
}
および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);
}
}
これを試して
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);
}
}
）;
以下のコードを参照してください
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);
私はこの問題を解決する新しい方法を得ました。ここでは、Google HTTPサービスを使用して、経度と緯度に基づいて位置の合計情報を取得しました。緯度と経度をurlとAPIキーで渡す必要があります（例：latlng = 21.1497409、79.08747970000002＆key = YOUR API KEY）。これがExampleServiceClassのgetサービスです
getService(url) {
return this.http.get(url).map((data: any) => data.json())
}
これはあなたが望む場所に置いて、あなたが位置データを必要とするコンポーネントから以下のサービスを呼び出すことができます
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']);
});
同様に都市名を検索します。
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;
}
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
}
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));
}
}
これは、Googleフィードバックデータを解析する方法です。
作業コード：
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();
リストがある場合、これを使用できます。
Address address = list.get(0);
String cityname = address.getLocality();
このAPIを使用してみてください：
URL "： http://maps.googleapis.com/maps/api/geocode/json?latlng= " + String.valueOf（yout_lattitude）+ "、" + String.valueOf（your_longitude）