问题
I know sometimes google back-end service might not be available.
Hence a solution might be to loop until i get the data.
private class getLocationDetails extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
Log.d(\"looping\", \"\" + count + \"\");
count++;
double lat = Double.parseDouble(params[0]);
double lng = Double.parseDouble(params[1]);
List<Address> addresses = null;
try {
Geocoder gCoder = new Geocoder(ImageAndLocationActivity.this,
Locale.getDefault());
addresses = gCoder.getFromLocation(lat, lng, 1);
Address addr = addresses.get(0);
user_country = addr.getCountryName();
user_city = addr.getLocality();
user_district = addr.getSubAdminArea();
if (user_city == null) {
user_city = user_district;
}
} catch (Exception e) {
Log.e(\"Exception in getLocationDetails - \", e.getMessage());
return null;
}
return \"\";
}
@Override
protected void onPostExecute(String result) {
if (result != null) {
Log.d(\"user_city = \", \"\" + user_city);
} else {
new getLocationDetails().execute(CurrentLat + \"\", CurrentLng
+ \"\");
}
}
@Override
protected void onPreExecute() {
}
@Override
protected void onProgressUpdate(Void... values) {
}
}
But i am not able to get the location at all:
LogCat:
02-27 16:29:49.568: D/looping(10966): 110355
02-27 16:29:49.568: E/Exception in getLocationDetails -(10966): Service not Available
02-27 16:29:49.573: D/looping(10966): 110356
02-27 16:29:49.573: E/Exception in getLocationDetails -(10966): Service not Available
02-27 16:29:49.573: D/looping(10966): 110357
02-27 16:29:49.573: E/Exception in getLocationDetails -(10966): Service not Available
and ofcourse i have added all the needed permissions:
<uses-permission android:name=\"android.permission.INTERNET\" />
I am trying this on Samsung Galaxy Note GT-N7000 (4.0.4 version)
Am i missing any settings? related to device or application ? Or this usually happens? If so any better solution to resolve this??
Thank You
回答1:
The actual reason why Geocoder was not working is because the NetworkLocator was killed in action. Probably due to less memory or maybe you used the Task Manager to kill all services?
I'm not sure but this is a guess. I've seen this before. Last year I wrote a reconnect mechanism to load the NetworkLocator.apk and bind to the GeocoderService. I think this change has not merged into JellyBean so this problem persists.
It can be only solved by reboot. (The NetworkLocationService is loaded at boot)
Edit: You won't see this problem in JBP or KK, this service is moved into the playstore app .
回答2:
Workaround using direct access to google maps:
public static LatLng getLocationFromString(String address)
throws JSONException {
HttpGet httpGet = new HttpGet(
"http://maps.google.com/maps/api/geocode/json?address="
+ URLEncoder.encode(address, "UTF-8") + "&ka&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(stringBuilder.toString());
double lng = ((JSONArray) jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lng");
double lat = ((JSONArray) jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lat");
return new LatLng(lat, lng);
}
public static List<Address> getStringFromLocation(double lat, double lng)
throws ClientProtocolException, IOException, JSONException {
String address = String
.format(Locale.ENGLISH, "http://maps.googleapis.com/maps/api/geocode/json?latlng=%1$f,%2$f&sensor=true&language="
+ Locale.getDefault().getCountry(), lat, lng);
HttpGet httpGet = new HttpGet(address);
HttpClient client = new DefaultHttpClient();
HttpResponse response;
StringBuilder stringBuilder = new StringBuilder();
List<Address> retList = null;
response = client.execute(httpGet);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
JSONObject jsonObject = new JSONObject(stringBuilder.toString());
retList = new ArrayList<Address>();
if ("OK".equalsIgnoreCase(jsonObject.getString("status"))) {
JSONArray results = jsonObject.getJSONArray("results");
for (int i = 0; i < results.length(); i++) {
JSONObject result = results.getJSONObject(i);
String indiStr = result.getString("formatted_address");
Address addr = new Address(Locale.getDefault());
addr.setAddressLine(0, indiStr);
retList.add(addr);
}
}
return retList;
}
回答3:
Restart the device and it will fix the issue.
回答4:
API will throw a "Service not Available exception" if such service is unavailable on the device. Use method isPresent() to check for the existence of the service.
See also: http://developer.android.com/reference/android/location/Geocoder.html
回答5:
The best fix for this problem is to use the same like Google Geocoder class if the original Geocoder fail
List<Address> addresses = null;
Geocoder geocoder = new Geocoder(this);
addresses = geocoder.getFromLocation(...);
if (addresses == null || addresses.isEmpty())
addresses = MyGeocoder.getFromLocation(...);
import android.location.Address;
import android.util.Log;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.params.AllClientPNames;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
public class MyGeocoder {
public static List<Address> getFromLocation(double lat, double lng, int maxResult) {
String address = String.format(Locale.ENGLISH, "http://maps.googleapis.com/maps/api/geocode/json?latlng=%1$f,%2$f&sensor=false&language=" + Locale.getDefault().getCountry(), lat, lng);
HttpGet httpGet = new HttpGet(address);
HttpClient client = new DefaultHttpClient();
client.getParams().setParameter(AllClientPNames.USER_AGENT, "Mozilla/5.0 (Java) Gecko/20081007 java-geocoder");
client.getParams().setIntParameter(AllClientPNames.CONNECTION_TIMEOUT, 5 * 1000);
client.getParams().setIntParameter(AllClientPNames.SO_TIMEOUT, 25 * 1000);
HttpResponse response;
List<Address> retList = null;
try {
response = client.execute(httpGet);
HttpEntity entity = response.getEntity();
String json = EntityUtils.toString(entity, "UTF-8");
JSONObject jsonObject = new JSONObject(json);
retList = new ArrayList<Address>();
if ("OK".equalsIgnoreCase(jsonObject.getString("status"))) {
JSONArray results = jsonObject.getJSONArray("results");
if (results.length() > 0) {
for (int i = 0; i < results.length() && i < maxResult; i++) {
JSONObject result = results.getJSONObject(i);
//Log.e(MyGeocoder.class.getName(), result.toString());
Address addr = new Address(Locale.getDefault());
// addr.setAddressLine(0, result.getString("formatted_address"));
JSONArray components = result.getJSONArray("address_components");
String streetNumber = "";
String route = "";
for (int a = 0; a < components.length(); a++) {
JSONObject component = components.getJSONObject(a);
JSONArray types = component.getJSONArray("types");
for (int j = 0; j < types.length(); j++) {
String type = types.getString(j);
if (type.equals("locality")) {
addr.setLocality(component.getString("long_name"));
} else if (type.equals("street_number")) {
streetNumber = component.getString("long_name");
} else if (type.equals("route")) {
route = component.getString("long_name");
}
}
}
addr.setAddressLine(0, route + " " + streetNumber);
addr.setLatitude(result.getJSONObject("geometry").getJSONObject("location").getDouble("lat"));
addr.setLongitude(result.getJSONObject("geometry").getJSONObject("location").getDouble("lng"));
retList.add(addr);
}
}
}
} catch (ClientProtocolException e) {
Log.e(MyGeocoder.class.getName(), "Error calling Google geocode webservice.", e);
} catch (IOException e) {
Log.e(MyGeocoder.class.getName(), "Error calling Google geocode webservice.", e);
} catch (JSONException e) {
Log.e(MyGeocoder.class.getName(), "Error parsing Google geocode webservice response.", e);
}
return retList;
}
}
回答6:
use this trick.
simply edit the project.properties
# Project target
target=Google Inc.:Google APIs:16
The reason is that the Geocoder class is present in the core Android framework, but depends on code contributed by the Google APIs to function properly. Even if your AVD includes the Google APIs, your project still needs to be built against that specific build target.
回答7:
Service not Available - Geocoder Android when i get this error in some cooked roms i wrote this library i hope could be useful. https://github.com/dnocode/gapis
回答8:
I'm using the code that is up (direct access to Google Maps) "merged" with Geocoder code, as shown below (Pay special attention to "try catch"):
...
//address is String
if (address != null) {
new GeocoderTask().execute(address);
}
...
// An AsyncTask class for accessing the GeoCoding Web Service
private class GeocoderTask extends AsyncTask<String, Void, List<Address>> {
private LatLng latLng;
private MarkerOptions markerOptions;
@Override
protected List<Address> doInBackground(String... locationName) {
// Creating an instance of Geocoder class
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input text
addresses = geocoder.getFromLocationName(locationName[0], 3);
} catch (IOException e) {
e.printStackTrace();
try {
addresses = getLocationFromString(locationName[0]);
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
} catch (JSONException e1) {
e1.printStackTrace();
}
}
return addresses;
}
@Override
protected void onPostExecute(List<Address> addresses) {
if (addresses == null || addresses.size() == 0) {
Toast.makeText(getBaseContext(), "No Location found",
Toast.LENGTH_SHORT).show();
return;
}
// Clears all the existing markers on the map
googleMap.clear();
// Adding Markers on Google Map for each matching address
for (int i = 0; i < addresses.size(); i++) {
Address address = (Address) addresses.get(i);
// Creating an instance of GeoPoint, to display in Google Map
latLng = new LatLng(address.getLatitude(),
address.getLongitude());
String addressText = String.format(
"%s, %s",
address.getMaxAddressLineIndex() > 0 ? address
.getAddressLine(0) : "", address
.getCountryName());
markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title(addressText);
googleMap.addMarker(markerOptions);
// Locate the first location
if (i == 0) {
CameraUpdate center = CameraUpdateFactory.newLatLng(latLng);
CameraUpdate zoom = CameraUpdateFactory.zoomTo(13);
googleMap.moveCamera(center);
googleMap.animateCamera(zoom);
}
}
}
}
public static LatLng getLocationFromString(String address)
throws JSONException {
HttpGet httpGet = new HttpGet(
"http://maps.google.com/maps/api/geocode/json?address="
+ URLEncoder.encode(address, "UTF-8") + "&ka&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(stringBuilder.toString());
double lng = ((JSONArray) jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lng");
double lat = ((JSONArray) jsonObject.get("results")).getJSONObject(0)
.getJSONObject("geometry").getJSONObject("location")
.getDouble("lat");
return new LatLng(lat, lng);
}
public static List<Address> getStringFromLocation(double lat, double lng)
throws ClientProtocolException, IOException, JSONException {
String address = String
.format(Locale.ENGLISH, "http://maps.googleapis.com/maps/api/geocode/json?latlng=%1$f,%2$f&sensor=true&language="
+ Locale.getDefault().getCountry(), lat, lng);
HttpGet httpGet = new HttpGet(address);
HttpClient client = new DefaultHttpClient();
HttpResponse response;
StringBuilder stringBuilder = new StringBuilder();
List<Address> retList = null;
response = client.execute(httpGet);
HttpEntity entity = response.getEntity();
InputStream stream = entity.getContent();
int b;
while ((b = stream.read()) != -1) {
stringBuilder.append((char) b);
}
JSONObject jsonObject = new JSONObject(stringBuilder.toString());
retList = new ArrayList<Address>();
if ("OK".equalsIgnoreCase(jsonObject.getString("status"))) {
JSONArray results = jsonObject.getJSONArray("results");
for (int i = 0; i < results.length(); i++) {
JSONObject result = results.getJSONObject(i);
String indiStr = result.getString("formatted_address");
Address addr = new Address(Locale.getDefault());
addr.setAddressLine(0, indiStr);
retList.add(addr);
}
}
return retList;
}
This worked excellent for me because when Geocoder not work, i use direct access to Google Maps.
Cheers!
回答9:
I had the same geocoder error but non of the above applied. It would not run one of my Android devices. Then I remembered that I had accedently killed some running service. The solution was to remove the battery for some seconds and re-install it. And it worked without changing the code :))
回答10:
Some devices do not have suport for Geocoder, so what you need to do is create your own geocoder.
Basicaly you need create a async task to request google for the address and treat the json response.
Using aquery, i do something like this:
public void asyncJson(String address){
address = address.replace(" ", "+");
String url = "http://maps.googleapis.com/maps/api/geocode/json?address="+ address +"&sensor=true";
aq.ajax(url, JSONObject.class, new AjaxCallback<JSONObject>() {
@Override
public void callback(String url, JSONObject json, AjaxStatus status) {
if(json != null){
//here you work with the response json
JSONArray results = json.getJSONArray("results");
Toast.makeText(context, results.getJSONObject(1).getString("formatted_address"));
}else{
//ajax error, show error code
Toast.makeText(aq.getContext(), "Error:" + status.getCode(), Toast.LENGTH_LONG).show();
}
}
});
}
回答11:
For the following line
Geocoder gCoder = new Geocoder(context, Locale.getDefault());
Use
Contextof your Activity and don't usegetApplicationContext()
回答12:
I have also had trouble with this error. It happened when I updated my device to Marshmallow recently.
If I reboot, it works once, but then will fail, and not work at all thereafter.
I created an AsyncTask like other people, that only returns the address from the first result of the json response.
To use the code below, call it constructed with your api key, and you use a Location object as input to execute the AsyncTask. You can import Location with the following. import android.location.Location; You will have to get the current Location with the LocationManager, by requesting an update to it.
new ReverseGeoCodeTask(GOOGLE_API_KEY).execute(location);
Make sure you replace the api key with your own, and also make sure you enable it in the google cloud console. That is where you manage all the google apis for your particular project.
Copy this class as an Inner Class in the Activity that you are needing the reverse geocoded address.
/**
* Reverse geocode request - takes a Location in as parameters,
* and does a network request in the background to get the first address in
* json response. The address is returned in the onPostExecute so you
* can update the UI with it
*/
private class ReverseGeoCodeTask extends AsyncTask<Location, Void, String>{
private final static String GEOCODE_API_ENDPOINT_BASE = "https://maps.googleapis.com/maps/api/geocode/json?latlng=";
private final static String JSON_PROPERTY_RESULTS = "results";
private final static String JSON_PROPERTY_FORMATTED_ADDRESS = "formatted_address";
private final static String JSON_PROPERTY_REQUEST_STATUS = "status";
private final static String STATUS_OK = "OK";
private String apiKey;
public ReverseGeoCodeTask(final String apiKey){
this.apiKey = apiKey;
}
@Override
protected String doInBackground(Location... params) {
if(apiKey == null){
throw new IllegalStateException("Pass in a geocode api key in the ReverseGeoCoder constructor");
}
Location location = params[0];
String googleGeocodeEndpoint = GEOCODE_API_ENDPOINT_BASE + location.getLatitude() + "," + location.getLongitude() + "&key=" + apiKey;
Log.d(TAG, "Requesting gecoding endpoint : " + googleGeocodeEndpoint);
try {
URL url = new URL(googleGeocodeEndpoint);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
JSONObject json = new JSONObject(result.toString());
String requestStatus = json.getString(JSON_PROPERTY_REQUEST_STATUS);
if(requestStatus.equals(STATUS_OK)){
JSONArray results = json.getJSONArray(JSON_PROPERTY_RESULTS);
if(results.length() > 0){
JSONObject result1 = results.getJSONObject(0);
String address = result1.getString(JSON_PROPERTY_FORMATTED_ADDRESS);
Log.d(TAG, "First result's address : " + address );
return address;
}
else{
Log.d(TAG, "There were no results.");
}
}
else{
Log.w(TAG, "Geocode request status not " + STATUS_OK + ", it was " + requestStatus );
Log.w(TAG, "Did you enable the geocode in the google cloud api console? Is it the right api key?");
}
}catch ( IOException | JSONException e){
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String address) {
super.onPostExecute(address);
if(address != null){
// update the UI here with the address, if its not null
originEditText.setText(address);
}
else{
Log.d(TAG, "Did not find an address, UI not being updated");
}
}
}
回答13:
new Volly_Services(map, "https://maps.googleapis.com/maps/api/place/textsearch/json?query=" + mBinding.loc.getText().toString().trim() + "&key=Ap", getActivity()).vollyPostService().continueWithTask(task - > {
mBinding.progressBaar.setVisibility(View.GONE);
if (task.getResult() != null) {
Log.e("<<<", "" + task.getResult());
JSONObject jsonObject = new JSONObject("" + task.getResult());
if ("OK".equalsIgnoreCase(jsonObject.getString("status"))) {
JSONArray results = jsonObject.getJSONArray("results");
if (results.length() > 0) {
mBinding.loc.setVisibility(View.GONE);
for (int i = 0; i < results.length(); i++) {
JSONObject result = results.getJSONObject(i);
String indiStr = result.getString("formatted_address");
Address addr = new Address(Locale.getDefault());
addr.setAddressLine(0, indiStr);
addr.setLocality(result.getString("name"));
JSONObject geometry = result.getJSONObject("geometry").getJSONObject("location");
addr.setLatitude(geometry.getDouble("lat"));
addr.setLongitude(geometry.getDouble("lng"));
addresses.add(addr);
}
adapter = new SerchLocationAdapter(getActivity(), addresses);
mBinding.serchreg.setAdapter(adapter);
} else {
Toast.makeText(getActivity(), "No result found", Toast.LENGTH_LONG).show();
}
} else {
Toast.makeText(getActivity(), "No result found", Toast.LENGTH_LONG).show();
}
} else {
Log.e("<<<<<<", "" + task.getError().getMessage());
Toast.makeText(getActivity(), task.getError().getMessage(), Toast.LENGTH_LONG).show();
}
return null;
});
回答14:
Had the same issue on Android 6. The problem was in App permissions. Even if the maps works properly you must allow the "Get position" permission in app permissions.
The best case is always to check this permission allowed when you expect to get the place in result.
I use this method to get the full address from place:
public Address getFullAddress(Place place){
Address address;
Locale aLocale = new Locale.Builder().setLanguage("en").build();
Geocoder geocoder = new Geocoder(this, aLocale);
try {
List<Address> addresses = geocoder.getFromLocation(place.getLatLng().latitude,place.getLatLng().longitude, 1);
address = addresses.get(0);
return address;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
回答15:
I had the same error, add below permissions to resolve it.
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.INTERNET" />
来源：https://stackoverflow.com/questions/15110528/service-not-available-while-calling-geocoder-getfromlocation