I am trying to pass geocoder values from MapFragment to LocationDetailsActivity.
I get the correct values for lat and lng, but when I try to display any of the other values, most of the times I get null values instead of the city and zip (but not always), while a lot of the times I get the correct country and state (also not always).
MapFragment Code:
// Set default latitude and longitude
double latitude = 15.4825766;
double longitude = -5.0076589;
// Get latitude and longitude of the current location and a LatLng object
if (myLocation != null) {
latitude = myLocation.getLatitude();
longitude = myLocation.getLongitude();
}
mMap.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener() {
#Override
public void onMapLongClick(LatLng arg0) {
Geocoder geocoder = new Geocoder(getActivity(), Locale.getDefault());
try {
List<Address> allAddresses = geocoder.getFromLocation(arg0.latitude, arg0.longitude, 1);
if (allAddresses.size() > 0 && allAddresses != null) {
Address address = allAddresses.get(0);
Intent intent = new Intent(getActivity(), LocationDetailsActivity.class);
intent.putExtra("latitude", arg0.latitude);
intent.putExtra("longitude", arg0.longitude);
intent.putExtra("city", allAddresses.get(0).getLocality());
intent.putExtra("zip", allAddresses.get(0).getPostalCode());
intent.putExtra("state", allAddresses.get(0).getAdminArea());
intent.putExtra("country", allAddresses.get(0).getCountryName());
startActivity(intent);
}
} catch (IOException e) {
e.printStackTrace();
}
}
});
LocationDetailsActivity Code:
Bundle bundle = getIntent().getExtras();
double lat = bundle.getDouble("latitude");
double lng = bundle.getDouble("longitude");
String city = intent.getStringExtra("city");
String zip = intent.getStringExtra("zip");
String state = intent.getStringExtra("state");
String country = intent.getStringExtra("country");
// I display my values here
mFirstValueDisplay.setText(String.valueOf(city));
mSecondValueDisplay.setText(String.valueOf(zip));
Android's geocoding api is pretty unreliable up-to my experience, I usually make a request to the Google's geocoding webservices on Url : "https://maps.googleapis.com/maps/api/geocode"
(If you are familiar with retrofit)
#GET("/json")
void reverseGeoCode(#Query("latlng") String latlng, #Query("language") String language,
#Query("key") String key, Callback<ReverseGeoCode> callback);
latlng The latitude and longitude you want to reverse geocode.
language language of the geocoded response
key Your Api key
Go here for more info
Geocoder often got the values right, but more often than not I got null values. Based on #insomniac's advice I modified my code:
public void onMapLongClick(final LatLng arg0) {
RequestQueue queue = Volley.newRequestQueue(getActivity());
String url = "https://maps.googleapis.com/maps/api/geocode/json?latlng=" + String.valueOf(arg0.latitude) + "," + String.valueOf(arg0.longitude) + "&key=myKeyCode";
// Request a string response from the provided URL.
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONArray jObj = new JSONObject(response).getJSONArray("results").getJSONObject(0).getJSONArray("address_components");
Intent intent = new Intent(getActivity(), LocationDetailsActivity .class);
for (int i = 0; i < jObj.length(); i++) {
String componentName = new JSONObject(jObj.getString(i)).getJSONArray("types").getString(0);
if (componentName.equals("postal_code") || componentName.equals("locality")) {
intent.putExtra(componentName, new JSONObject(jObj.getString(i)).getString("short_name"));
}
}
intent.putExtra("latitude", arg0.latitude);
intent.putExtra("longitude", arg0.longitude);
startActivity(intent);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
int x = 1;
}
});
// Add the request to the RequestQueue.
queue.add(stringRequest);
It still displays some areas as null. But those are smaller areas. Hope someone finds it helpful.
Related
hi I made a simple app that gets current location with gps and shows the current city but when I run it, it shows latitude and longitude correctly but returns city as null
Location mLastLocation = locationResult.getLastLocation();
lat = mLastLocation.getLatitude() + "";
lon = mLastLocation.getLongitude() + "";
Geocoder gcd = new Geocoder(MLocationListener.this, Locale.getDefault());
List<Address> addresses;
try {
addresses = gcd.getFromLocation(mLastLocation.getLatitude(), mLastLocation.getLongitude(), 1);
if (addresses.size() > 0) {
// Log.d("city", addresses.get(0).getLocality());
String cityName = addresses.get(0).getLocality();
//Toast.makeText(MLocationListener.this, cityName, Toast.LENGTH_SHORT).show();
}
} catch (IOException e) {
e.printStackTrace();
}
Try this solution:
Google map = googleMap;
this.map = googleMap;
this.map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
this.map.getUiSettings().setZoomControlsEnabled(true);
this.map.getUiSettings().setCompassEnabled(true);
this.map.getUiSettings().setMyLocationButtonEnabled(true);
this.map.getUiSettings().setZoomGesturesEnabled(true);
this.map.getUiSettings().setRotateGesturesEnabled(true);
String s = "New York";
List<Address> addressList = null;
if(s!=null){
Geocoder geocoder = new Geocoder( ); //inside put "getActivity()" or "this"
try{
addressList=geocoder.getFromLocationName(s, 1);
}catch(IOException e){
e.printStackTrace();
}
Address address = addressList.get(0);
LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
map.addMarker(new MarkerOptions().position(latLng).title(s));
map.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 10));
}
Is good to put this type of solution inside a class which implements OnMapReadyCallback, inside the method OnMapReady(GoogleMap googleMap)
Hope this can help you
I created a seperate activity to create a Google Map and set a marker on the users current location. In another fragment class, I'd like to set the text of a text view to the location from the map activity.
CheckInFragment
mLocation = (TextView) v.findViewById(R.id.checkin_location_text);
mLocation.setText();
MapsActivity
private void handleNewLocation(Location location){
//SET THESE TWO VARIABLES TO THE TEXT vv
double currentLatitude = location.getLatitude();
double currentLongitude = location.getLongitude();
LatLng latLng = new LatLng(currentLatitude, currentLongitude);
MarkerOptions options = new MarkerOptions()
.position(latLng)
.title("Check In Location");
mMap.addMarker(options);
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
float zoomLevel = 16.0f;
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoomLevel));
}
You can try below code to get the string value of location:
Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
try {
List<Address> addressList = geocoder.getFromLocation(location.getLatitude(),
location.getLongitude(), 1);
String fullAddress = "";
if (addressList != null && addressList.size() > 0) {
if (addressList.get(0).getAddressLine(0) != null) {
fullAddress += addressList.get(0).getAddressLine(0) + " ";
}
if (addressList.get(0).getSubAdminArea() != null) {
fullAddress += addressList.get(0).getSubAdminArea() + " ";
}
} else {
Log.d("Address:", "Couldn't find Address");
}
} catch (IOException e) {
e.printStackTrace();
}
Then you can pass the fullAddress string value in a bundle when calling the your fragment class, something like:
YourFragment fragment = new YourFragment();
Bundle args = new Bundle();
args.putString("location_string", fullAddress);
fragment.setArguments(args);
Finally in onCreate method of your Fragment class fetch the string value as below:
if (getArguments() != null)
{
_location = getArguments().getString("location_string");
}
Hope this helps!!!
I'm having trouble converting coordinates to an actual address.
I have two variables that pull coordinates but I'm getting many errors when I tweak the code. The first error is "unreported exception IOException; must be caught or declared to be thrown" and then I add the try catch then another error pops up, "yourAddresses might not have been initialized.
I'm just trying to get the address, street, and city so I can append it into a textView.
#Override
public void onLocationChanged(Location location)
{
double latitude = location.getLongitude();
double longitude = location.getLatitude();
//t.append("\n " + location.getLongitude() + " " + location.getLatitude());
Geocoder geocoder;
List<Address> yourAddresses;
geocoder = new Geocoder(context, Locale.getDefault());
yourAddresses = geocoder.getFromLocation(latitude, longitude, 1);
if (yourAddresses.size() > 0) {
String yourAddress = yourAddresses.get(0).getAddressLine(0);
String yourCity = yourAddresses.get(0).getAddressLine(1);
String yourCountry = yourAddresses.get(0).getAddressLine(2);
}
}
Thanks!
I used this code and its works for me....
public void getAddressFromLocation(final double latitude, final double longitude,
final Context context, final Handler handler)
{
Thread thread = new Thread()
{
#Override
public void run()
{
Geocoder geocoder = new Geocoder(context, Locale.getDefault());
String result = null;
Address address = null;
try
{
List<Address> addressList = geocoder.getFromLocation(latitude, longitude, 1);
if (addressList != null && addressList.size() > 0)
{
address = addressList.get(0);
}
}
catch (Exception e)
{
Log.e(TAG, "getAddressFromLocation:run: exception while getting address from location");
e.printStackTrace();
}
finally
{
Message message = Message.obtain();
message.setTarget(handler);
if (address != null)
{
message.what = 1;
Bundle bundle = new Bundle();
bundle.putString("thoroughFare", address.getThoroughfare());
bundle.putString("subThoroughFare", address.getSubThoroughfare());
bundle.putString("city", address.getLocality());
bundle.putString("state", address.getAdminArea());
bundle.putString("country", address.getCountryName());
bundle.putString("postalCode", address.getPostalCode());
bundle.putString("subAdminArea", address.getSubAdminArea());
bundle.putString("subLocality", address.getSubLocality());
message.setData(bundle);
}
else
{
message.what = 1;
Bundle bundle = new Bundle();
result = "Latitude: " + latitude + "Longitude: " + longitude +
"\n Unable to get address for this location.";
bundle.putString("address", result);
message.setData(bundle);
}
message.sendToTarget();
}
}
};
thread.start();
}
This is my GeoCoderHandler class....
private class GeoCoderHandler extends Handler
{
#Override
public void handleMessage(Message msg)
{
switch (msg.what)
{
case 1:
String address = "";
Bundle bundle = msg.getData();
if (bundle.getString("subThoroughFare") != null)
{
if (!bundle.getString("subThoroughFare").equalsIgnoreCase("null"))
{
address = bundle.getString("subThoroughFare") + ", " +
bundle.getString("thoroughFare");
}
}
else
{
address = bundle.getString("thoroughFare");
}
tvAddress1.setText("");
tvAddress1.setText(address);
tvAddress2.setText("");
tvAddress2.setText(bundle.getString("subLocality"));
tvAddress3.setText("");
tvAddress3.setText(bundle.getString("subAdminArea"));
edtPinCode.setText("");
edtPinCode.setText(bundle.getString("postalCode"));
tvCity.setText("");
tvCity.setText(bundle.getString("city"));
tvState.setText("");
tvState.setText(bundle.getString("state"));
tvCountry.setText("");
tvCountry.setText(bundle.getString("country"));
break;
default:
tvAddress1.setText(getResources().getString(R.string.address_not_found));
tvAddress2.setText("");
tvAddress3.setText("");
edtPinCode.setText("");
tvCity.setText("");
tvState.setText("");
tvCountry.setText("");
break;
}
}
}
your need some initialized for yourAddress
List<Address> yourAddresses = new ArrayList();
I was working with geocoder in my android app to get country name using latitude and longitude. I found that it was working good in kitkat version and below. But when i test my app in above versions it was giving null. So my question is simple that how to use geocoder above kitkat versions.
If there is any other better option instead of geocoder then please suggest me!
Thanks in advance!
I post my code for Geocoder. Follow it
//Keep this GeocodingLocation.java in a separate file.
public class GeocodingLocation {
private static final String TAG = "GeocodingLocation";
public static void getAddressFromLocation( final String locationAddress,
final Context context, final Handler handler) {
Thread thread = new Thread() {
#Override
public void run() {
Geocoder geocoder = new Geocoder(context, Locale.getDefault());
String result = null;
String latitude = null;
String longitude = null;
try {
List<Address> addressList = geocoder.getFromLocationName(locationAddress, 1);
if (addressList != null && addressList.size() > 0) {
Log.e("GeocodingLocation --> getAddressFromLocation ==>" +
addressList.toString());
Address address = (Address) addressList.get(0);
StringBuilder sb = new StringBuilder();
latitude = String.valueOf(address.getLatitude());
longitude = String.valueOf(address.getLongitude());
Logger.infoLog("GeocodingLocation --> Lat & Lang ==>" + latitude +" "+longitude);
//sb.append(address.getLatitude()).append("\n");
//sb.append(address.getLongitude()).append("\n");
}
} catch (IOException e) {
Log.e(TAG, "Unable to connect to Geocoder", e);
} finally {
Message message = Message.obtain();
message.setTarget(handler);
if (latitude != null && longitude != null) {
message.what = 1;
Bundle bundle = new Bundle();
bundle.putString("latitude", latitude);
bundle.putString("longitude", longitude);
message.setData(bundle);
} else {
message.what = 1;
Bundle bundle = new Bundle();
result = "Address: " + locationAddress +
"\n Unable to get Latitude and Longitude for this address location.";
bundle.putString("address", result);
message.setData(bundle);
}
message.sendToTarget();
}
}
};
thread.start();
}
}
call the class from your fragment.
private void getAddressLatitudeLongitude(String branchAddress) {
Log.e("getAddressLatitudeLongitude ==>" + branchAddress);
GeocodingLocation.getAddressFromLocation(branchAddress, thisActivity, new GeocoderHandler());
}
Keep this class as inner class in same fragment
private class GeocoderHandler extends Handler {
#Override
public void handleMessage(Message message) {
switch (message.what) {
case 1:
try {
Bundle bundle = message.getData();
latitude = bundle.getString("latitude");
longitude = bundle.getString("longitude");
Log.e("CreateBranch --> GeocoderHandler ==>" + latitude + " " + longitude);
}catch (Exception e){
e.printStackTrace();
}
break;
default:
latitude = null;
longitude = null;
}
latitudeList.add(latitude);
longitudeList.add(longitude);
if(latitude==null || longitude==null){
showAlertDialog("Please enter correct address", Constants.APP_NAME);
}
Log.e("Latitude list =>" + latitudeList);
Log.e("Longitude list =>" + longitudeList);
}
}
Output will get latitude and longitude. Hope this answer helps.
I am trying to output the location into a textview.
I have used the locationManager.toString(), but it would only give me the output android.location.LocationManager#44ee7718.
I would like to output the location like Los Angeles, CA 90501.
The code for LocationManager:
LocationManager lm = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
//conversion
Criteria criteria = new Criteria();
String bp = lm.getBestProvider(criteria, false);
Location location = lm.getLastKnownLocation(bp);
double lat = location.getLatitude();
double lon = location.getLongitude();
Geocoder gc = new Geocoder(this, Locale.getDefault());
List<Address> addresses = null;
try{
addresses = gc.getFromLocation(lat, lon, 1);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Address address = addresses.get(0);
final String ad = address.getAddressLine(0);
//ends here
The code for the button:
Red.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent (Intent.ACTION_VIEW);
intent.putExtra("sms_body", ad);
intent.setType("vnd.android-dir/mms-sms");
startActivity(intent);
}
});
Try following code
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();
}
Hope this helps.
Call appropriate Location methods (getLatitude(), getLongitude())
Read this, http://developer.android.com/reference/android/location/Location.html
Also for converting to human readable names, you need to use GeoCoding
Read this, http://developer.android.com/reference/android/location/Geocoder.html
Also, http://developer.android.com/training/basics/location/geocoding.html