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Call maybe rejected by user in obtaining location

I am try to implement an android api to get the current location.But i am not able to retrieve the latitude and longitude .It is always set to zero.
Whereas in my GPSTracker.java is get a warning saying " call maybe rejected by user code should explicitly check to see if permission is available".
I have added permission in AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
My GPSTracker.java is -
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public void showSettingsAlert(){
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing Settings button
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app
* */
public void stopUsingGPS(){
if(locationManager != null){
locationManager.removeUpdates(GPSTracker.this);
}
}
/**
* Function to get latitude
* */
public double getLatitude(){
if(location != null){
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude(){
if(location != null){
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/wifi enabled
* #return boolean
* */
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog
* On pressing Settings button will lauch Settings Options
* */
#Override
public void onLocationChanged(Location location) {
}
#Override
public void onProviderDisabled(String provider) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
#Override
public IBinder onBind(Intent arg0) {
return null;
}
}
My MainActivity.java is-
public class MainActivity extends Activity {
Button btnShowLocation;
// GPSTracker class
com.example.vk9621.gpstrackingactivity.GPSTracker gps;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnShowLocation = (Button) findViewById(R.id.btnShowLocation);
// show location button click event
btnShowLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// create class object
gps = new com.example.vk9621.gpstrackingactivity.GPSTracker(MainActivity.this);
// check if GPS enabled
if(gps.canGetLocation()){
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
// \n is for new line
Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
}else{
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
}
});
}
}
On running the same in y phone, I get latitude and longitude both equal to 0.
How do i resolve this problem??

Add runtime permission if working with android version>=23
final private int REQUEST_CODE_ASK_PERMISSIONS = 123;
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
private void requestPermission() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED ) {
ActivityCompat
.requestPermissions(MainActivity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_CODE_ASK_PERMISSIONS);
}
}
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case REQUEST_CODE_ASK_PERMISSIONS:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// Permission Granted
Toast.makeText(MainActivity.this, "Permission Granted", Toast.LENGTH_SHORT)
.show();
} else {
// Permission Denied
Toast.makeText(MainActivity.this, "Permission Denied", Toast.LENGTH_SHORT)
.show();
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}

first You should add permission
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
in your manifest file and then check permission at run time.
Call checkPermissions() method in your onCreate method
private void checkPermissions() {
if (Build.VERSION.SDK_INT >= 23) {
if (!checkAllPermission())
requestLocationPermission();
} else showSettingDialog();
}
public boolean checkAllPermission() {
int FirstPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), ACCESS_FINE_LOCATION);
int SecondPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), ACCESS_COARSE_LOCATION);
return
FirstPermissionResult == PackageManager.PERMISSION_GRANTED &&
SecondPermissionResult == PackageManager.PERMISSION_GRANTED &&
}
private void requestLocationPermission() {
ActivityCompat.requestPermissions(MainActivity.this, new String[]
{
ACCESS_FINE_LOCATION,
ACCESS_COARSE_LOCATION,
}, RequestPermissionCode);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CHECK_SETTINGS:
switch (resultCode) {
case RESULT_OK:
Log.e("Settings", "Result Ok");
//updateGPSStatus("GPS is enabled");
break;
case RESULT_CANCELED:
Log.e("Settings", "Result Cancel");
showSettingDialog();
// updateGPSStatus("GPS is disabled");
break;
default:
break;
}
}
}
private void showSettingDialog() {
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(30 * 1000);
locationRequest.setFastestInterval(5 * 1000); //5 sec location update request
final LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(locationRequest);
builder.setAlwaysShow(true); // whenever gps off, it'll pop-up to start gps
final PendingResult<LocationSettingsResult> result = LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());
result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
#Override
public void onResult(#NonNull LocationSettingsResult result) {
final Status status = result.getStatus();
final LocationSettingsStates state = result.getLocationSettingsStates();
switch (status.getStatusCode()) {
case LocationSettingsStatusCodes.SUCCESS:
// updateGPSStatus("GPS is Enabled");
break;
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
try {
status.startResolutionForResult(MainActivity.this, REQUEST_CHECK_SETTINGS);
} catch (IntentSender.SendIntentException e) {
e.printStackTrace();
}
break;
case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
break;
default:
break;
}
}
});
}
for More info Check this

extract current location only works in my phone

The code works in my phone properly but doesn't works sometime. Also, this code doesn't work in other phone properly. I have tried many times. And while sending this app's apk file through xender the installation fails. Please help to improve my code so that it works properly in all phone when location is turned ON.
Mainactivity.java
public class MainActivity extends AppCompatActivity {
TextView result;
Double latitude, longitude;
Geocoder geocoder;
List<Address> addressList;
Getgps gps;
Context mContext;
protected LocationManager locationManager;
boolean isGPSEnabled = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
result = (TextView) findViewById(R.id.abcd);
geocoder = new Geocoder(this, Locale.getDefault());
mContext = this;
try
{
locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (isGPSEnabled)
{
getlonglat(); //check location
if(CheckInternetConnection(MainActivity.this)) {
getaddress();
// getlocation
if(result.getText().toString().matches(""))
{
Toast.makeText(mContext, "Poor Internet Connection", Toast.LENGTH_SHORT).show();
}
}
else
{
Toast.makeText(getApplicationContext(),"No internet Connection",Toast.LENGTH_LONG).show();
}
}
else
{
Toast.makeText(getApplicationContext(),"Turn ON Your Location",Toast.LENGTH_LONG).show();
showgpsSettingsAlert();
startActivity(new Intent(MainActivity.this, Main2Activity.class));
Toast.makeText(mContext, " after delay khatey", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e) {
e.printStackTrace();
}
}
public void getlonglat() {
if (ContextCompat.checkSelfPermission(mContext,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(mContext,
Manifest.permission.ACCESS_COARSE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
}
else {
Toast.makeText(mContext, "GPS Permission Granted", Toast.LENGTH_SHORT).show();
gps = new Getgps(mContext, MainActivity.this);
// Check if GPS enabled
if (gps.canGetLocation()) {
latitude = gps.getLatitude();
longitude = gps.getLongitude();
Toast.makeText(getApplicationContext(), "Your Location is - \nLatitude: " + latitude + "\nLongitude: " + longitude, Toast.LENGTH_LONG).show();
}
}
}
public void getaddress() {
try {
addressList = geocoder.getFromLocation(latitude, longitude, 1);
String address = addressList.get(0).getAddressLine(0);
String area = addressList.get(0).getLocality();
String city = addressList.get(0).getAdminArea();
String country = addressList.get(0).getCountryName();
String postalcode = addressList.get(0).getPostalCode();
String fullAddress = address + ", " + area + ", " + city + ", " + country + ", " + postalcode;
Toast.makeText(mContext, "Internet Permission Granted", Toast.LENGTH_SHORT).show();
result.setText(fullAddress);
}
catch (IOException e) {
e.printStackTrace();
}
}
public static boolean CheckInternetConnection(Context context) {
ConnectivityManager connectivity =
(ConnectivityManager) context.getSystemService(
Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
return false;
}
public void showgpsSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
alertDialog.setCancelable(false);
this.setFinishOnTouchOutside(false);
alertDialog.setTitle("GPS Setting");
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
alertDialog.setPositiveButton("OK ", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
alertDialog.setNegativeButton("Cancel ", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
Toast.makeText(mContext, "Sorry we cannot proceed", Toast.LENGTH_SHORT).show();
}
});
alertDialog.show();// Showing Alert Message
}
}
Getgps.java
package com.example.bibash28.locationfinal2;
/**
* Created by Bibash28 on 11/3/2017.
*/
public class Getgps extends Service
{
private Context mContext; // Flag for GPS status
boolean isGPSEnabled = false; // Flag for network status
boolean canGetLocation = false;
Location location; // Location
Double latitude,longitude;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 1000;// The minimum distance to change Updates in meters
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1;// 10 meters// The minimum time between updates in milliseconds// 1 minute
Activity activity;
protected LocationManager locationManager;
public Getgps(Context context, Activity activity)
{
this.mContext = context;
this.activity = activity;
getLocation();
}
public Location getLocation()
{
try
{
locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);
// Getting GPS status
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
// If GPS enabled, get latitude/longitude using GPS Services
this.canGetLocation = true;
if (isGPSEnabled) {
if (location == null) {
if (ContextCompat.checkSelfPermission(activity,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 50);
} else {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, mLocationListener);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
}
catch (Exception e) {
e.printStackTrace();
}
return location;
}
private final LocationListener mLocationListener = new LocationListener() {
#Override
public void onLocationChanged(final Location location) {
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onProviderDisabled(String provider) {
}
};
//Function to get latitude
public double getLatitude() {
if (location != null) {
latitude = location.getLatitude();
}
return latitude;
}
// Function to get longitude
public double getLongitude() {
if (location != null) {
longitude = location.getLongitude();
}
return longitude;
}
//Function to check GPS/Wi-Fi enabled #return boolean
public boolean canGetLocation()
{
return this.canGetLocation;
}
#Override
public IBinder onBind(Intent arg0) {
return null;
}
}

Android returns null when i read GPS location

I am trying to read the position of my android device using this code but it returns null on longitude and latitude, although I added the right permission and I tried it on my android device while the GPS is enabled. I tried to figure out the problem and find out that this if statement is not true
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
and I tried to change the != to == it didn't work also ,and if I tried to delete this if statement , it gives me error:
Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or explicitly handle a potential SecurityException
this is my GPS code:
public class GPSPosition extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 100 * 60*1; // 60 seconds
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSPosition(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
Log.d("enabless1", "Network");
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
public double getLatitude(){
if(location != null){
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude(){
if(location != null){
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog
* */
public void showSettingsAlert(){
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// Setting Icon to Dialog
//alertDialog.setIcon(R.drawable.delete);
// On pressing Settings button
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
public void onLocationChanged(Location location) {
// Toast.makeText(mContext, "log:" + Double.toString(location.getLongitude()) + ", lat: " + Double.toString(location.getLatitude()), Toast.LENGTH_LONG).show();
}
#Override
public void onProviderDisabled(String provider) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
}
here I call them in the MainActivity:
public class MainActivity extends AppCompatActivity {
public static String lat="10";
public static String lang="10";
GPSPosition gps;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Toast.makeText(MainActivity.this, lat + " " + lang, Toast.LENGTH_SHORT).show();
gps = new GPSPosition(MainActivity.this);
}
public void clickingBtn(View view) {
if (gps.canGetLocation()) {
double latitude = gps.getLatitude();
lat = String.valueOf(latitude);
double longitude = gps.getLongitude();
lang = String.valueOf(longitude);
Toast.makeText(MainActivity.this, latitude + " " + longitude, Toast.LENGTH_SHORT).show();
} else {
gps.showSettingsAlert();
}
}
this is the permissions in the Manifest:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

getLastKnownLocation() will return null if there is no recent location data for that provider. And, even if it returns something other than null, the Location might be fairly old. In cases where getLastKnownLocation() returns something unusable, you will have to wait until onLocationChanged() is called, then use the Location passed into that method.

Mock Location using FusedLocation

My question is I've got my method for mock location setup to an onclick button, however, I've got a location that is stored in a variable called lbldummylocation. both latitude and longitude coordinates are in one textview.
When I click my button setPhoneLocation (the method of the same name)
is invoked and the location stored in that textview(lbldummylocation) becomes my phone's location!
My Location Manager points Null and can't set textview in lat/long? I am using GoogleMPIClient and FusedLocation. please help! any ideas?
Class:
/**
* Everything for Location Requests
* */
private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 1000; //1 sec
private Location mLastLocation;
// Google client to interact with Google API
private GoogleApiClient mGoogleApiClient;
// boolean flag to toggle periodic location updates
private boolean mRequestingLocationUpdates = false;
private LocationRequest mLocationRequest;
private LocationManager mLocationManager;
// Location updates intervals in sec
private static int UPDATE_INTERVAL = 10000; // 10 sec
private static int FATEST_INTERVAL = 5000; // 5 sec
private static int DISPLACEMENT = 10; // 10 meters
/**
* Fields
* */
// UI elements
private TextView lblLocation, lblLocation2, lblLocation3, lblDummyLocation;
private Button btnShowLocation, btnStartLocationUpdates, btnAddLocation, btnViewPhoneLocation, btnViewAllPhoneLocation, btnSetPhoneLocation, btnStartLocationService, btnStopLocationService;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_location);
lblDummyLocation = (TextView) findViewById(R.id.lblDummyLocation);
btnSetPhoneLocation = (Button) findViewById(R.id.btnSetPhoneLocation);
// First we need to check availability of play services
if (checkPlayServices()) {
// Building the GoogleApi client
buildGoogleApiClient();
createLocationRequest();
}
//Get location button click listener
btnSetPhoneLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
setMockLocation();
}
});
}
private void setMockLocation() {
mLocationManager.removeTestProvider(LocationManager.GPS_PROVIDER);
mLocationManager.addTestProvider
(
LocationManager.GPS_PROVIDER,
"requiresNetwork" == "",
"requiresSatellite" == "",
"requiresCell" == "",
"hasMonetaryCost" == "",
"supportsAltitude" == "",
"supportsSpeed" == "",
"supportsBearing" == "",
android.location.Criteria.POWER_LOW,
android.location.Criteria.ACCURACY_FINE
);
Location newLocation = new Location(LocationManager.GPS_PROVIDER);
newLocation.setLatitude (lblDummyLocation);
newLocation.setLongitude(lblDummyLocation);
newLocation.setAccuracy(500);
mLocationManager.setTestProviderEnabled
(
LocationManager.GPS_PROVIDER,
true
);
mLocationManager.setTestProviderStatus
(
LocationManager.GPS_PROVIDER,
LocationProvider.AVAILABLE,
null,
System.currentTimeMillis()
);
mLocationManager.setTestProviderLocation
(
LocationManager.GPS_PROVIDER,
newLocation
);
}
#Override
protected void onStart() {
super.onStart();
if (mGoogleApiClient != null) {
mGoogleApiClient.connect();
}
}
#Override
protected void onResume() {
super.onResume();
checkPlayServices();
// Resuming the periodic location updates
if (mGoogleApiClient.isConnected() && mRequestingLocationUpdates) {
startLocationUpdates();
}
}
#Override
protected void onStop() {
super.onStop();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
#Override
protected void onPause() {
super.onPause();
stopLocationUpdates();
}
/**
* Method to display the location on UI
* */
private void displayLocation() {
mLastLocation = LocationServices.FusedLocationApi
.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
double latitude = mLastLocation.getLatitude();
double longitude = mLastLocation.getLongitude();
lblLocation.setText(latitude + ", " + longitude);
lblLocation2.setText("" + latitude);
lblLocation3.setText("" + longitude);
} else {
lblLocation
.setText("(Couldn't get the location. Make sure location is enabled on the device)");
}
}
/**
* Method to toggle periodic location updates
* */
private void togglePeriodicLocationUpdates() {
if (!mRequestingLocationUpdates) {
// Changing the button text
btnStartLocationUpdates
.setText(getString(R.string.btn_stop_location_updates));
mRequestingLocationUpdates = true;
// Starting the location updates
startLocationUpdates();
Log.d(TAG, "Periodic location updates started!");
} else {
// Changing the button text
btnStartLocationUpdates
.setText(getString(R.string.btn_start_location_updates));
mRequestingLocationUpdates = false;
// Stopping the location updates
stopLocationUpdates();
Log.d(TAG, "Periodic location updates stopped!");
}
}
/**
* Creating google api client object
* */
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API).build();
}
/**
* Creating location request object
* */
protected void createLocationRequest() {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(UPDATE_INTERVAL);
mLocationRequest.setFastestInterval(FATEST_INTERVAL);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setSmallestDisplacement(DISPLACEMENT);
}
/**
* Method to verify google play services on the device
* */
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil
.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Toast.makeText(getApplicationContext(),
"This device is not supported.", Toast.LENGTH_LONG)
.show();
finish();
}
return false;
}
return true;
}
/**
* Starting the location updates
* */
protected void startLocationUpdates() {
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
}
/**
* Stopping location updates
*/
protected void stopLocationUpdates() {
LocationServices.FusedLocationApi.removeLocationUpdates(
mGoogleApiClient, this);
}
/**
* Google api callback methods
*/
#Override
public void onConnectionFailed(ConnectionResult result) {
Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = "
+ result.getErrorCode());
}
#Override
public void onConnected(Bundle arg0) {
// Once connected with google api, get the location
displayLocation();
if (mRequestingLocationUpdates) {
startLocationUpdates();
}
}
#Override
public void onConnectionSuspended(int arg0) {
mGoogleApiClient.connect();
}
#Override
public void onLocationChanged(Location location) {
// Assign the new location
mLastLocation = location;
Toast.makeText(getApplicationContext(), "Location changed!",
Toast.LENGTH_SHORT).show();
// Displaying the new location on UI
displayLocation();
}

Android GPS not working in MyService

Have a good day, for 2 days I can not solve the problem.
took the app is very similar to that
http://www.androidhive.info/2012/07/android-gps-location-manager-tutorial/
everything works well, I get the GPS coordinates.
process would then obtain the coordinates + sending them to the server to be moved to a background service and that there was a problem, come coordinates 0.0 0.0
MainActivity.java (its all workin)
public class MainActivity extends Activity {
Button btnShowLocation;
// GPSTracker class
GPSTracker gps;
final String LOG_TAG = "myLogs";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnShowLocation = (Button) findViewById(R.id.button1);
// show location button click event
btnShowLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// create class object
gps = new GPSTracker(MainActivity.this);
// check if GPS enabled
if(gps.canGetLocation()){
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
// \n is for new line
Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
// #/mygps.php?lat=33.995834&lon=22.93707&timestamp=1375235923365&hdop=16.0&altitude=107.65327&speed=0.0
new RequestTask().execute("http://map.domain.ru/mygps.php?lat="+latitude+"&lon="+longitude+"&timestamp=1375235923365&hdop=16.0&altitude=107.65327&speed=0.0");
}else{
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
}
});
}
public void onClickStart(View v) {
startService(new Intent(this, MyService.class));
}
public void onClickStop(View v) {
stopService(new Intent(this, MyService.class));
}
}
class RequestTask extends AsyncTask<String, String, String>{
#Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
//TODO Handle problems..
} catch (IOException e) {
//TODO Handle problems..
}
return responseString;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
//Do anything with response..
}
}
GPSTracker.java
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app
* */
public void stopUsingGPS(){
if(locationManager != null){
locationManager.removeUpdates(GPSTracker.this);
}
}
/**
* Function to get latitude
* */
public double getLatitude(){
if(location != null){
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude(){
if(location != null){
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/wifi enabled
* #return boolean
* */
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog
* On pressing Settings button will lauch Settings Options
* */
public void showSettingsAlert(){
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing Settings button
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
#Override
public void onLocationChanged(Location location) {
}
#Override
public void onProviderDisabled(String provider) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
#Override
public IBinder onBind(Intent arg0) {
return null;
}
}
MyService.java
public class MyService extends Service {
final String LOG_TAG = "myLogs";
// GPSTracker class
GPSTracker gps;
MyBinder binder = new MyBinder();
Timer timer;
TimerTask tTask;
long interval = 10000;
public void onCreate() {
super.onCreate();
Log.d(LOG_TAG, "onCreate");
// timer = new Timer();
// schedule();
}
public void schedule() {
if (tTask != null) tTask.cancel();
if (interval > 0) {
tTask = new TimerTask() {
public void run() {
Log.d(LOG_TAG, "run");
gps = new GPSTracker(getApplicationContext()); // also tried MyService.this
if(gps!=null){
if(gps.canGetLocation()){
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
Log.d(LOG_TAG, "geo"+latitude+" lon"+longitude);
new RequestTask().execute("http://map.domain.ru/mygps.php?lat="+latitude+"&lon="+longitude+"&timestamp=1375235923365&hdop=16.0&altitude=107.65327&speed=0.0");
}
}else{
Log.d(LOG_TAG, "GPS null");
}
}
};
timer.schedule(tTask, 10000, interval);
}
}
long upInterval(long gap) {
interval = interval + gap;
schedule();
return interval;
}
long downInterval(long gap) {
interval = interval - gap;
if (interval < 0) interval = 0;
schedule();
return interval;
}
// public IBinder onBind(Intent arg0) {
// Log.d(LOG_TAG, "MyService onBind");
// return binder;
// }
class MyBinder extends Binder {
MyService getService() {
return MyService.this;
}
}
//}
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d(LOG_TAG, "onStartCommand");
// someTask();
timer = new Timer();
schedule();
return super.onStartCommand(intent, flags, startId);
}
public void onDestroy() {
super.onDestroy();
Log.d(LOG_TAG, "onDestroy");
// stopSelf();
timer.cancel();
}
public IBinder onBind(Intent intent) {
Log.d(LOG_TAG, "onBind");
return null;
}
void someTask() {
}
}
Why in the last class instead coordinates come nulls
code
Log.d(LOG_TAG, "geo "+latitude+" lon "+longitude);
write log "geo 0.0 lon 0.0"

this is because on that time gps cannot get location
almost the time when you are in building this happened
and there isnt lastknown location
you just checked that gps enabled
after that you must confident about the location that returned by checking location timestamp by difference between device time and location timestamp