Get GPS location via a service in Android

Question

I need to monitor user s locations using a background service  and then load them and show the path to the user   Using an activity  it was quite easy to get GPS locations  but when I got to do it via a service  I came into a problem as it seems to only work for looper threads  or something like that    As I ve searched the internet for a solution  I ve found out that many people got the same problem  but I couldn t find a working solution  Some people say that you need to use prepare- loop- quit   and some say you have to use a handlerThread  but still  I can t find out how to do such things in a proper way

User · Answer

Just complementing  I implemented this way and usually worked in my Service class  In my Service   Override public void onCreate         mHandler   new Handler Looper getMainLooper         mHandler post this       super onCreate        Override public void onDestroy          mHandler removeCallbacks this            super onDestroy        Override public void run         InciarGPSTracker

User · Answer

Take a look at Google Play Location Samples  Location Updates using a Foreground Service  Get updates about a device s location using a bound and started foreground service   Location Updates using a PendingIntent  Get updates about a device s location using a PendingIntent  Sample shows implementation using an IntentService as well as a BroadcastReceiver

User · Answer

ok   i ve solved it by creating a handler on the onCreate of the service   and calling the gps functions through there    The code is as simple as this   final handler new Handler Looper getMainLooper        And then to force running things on the UI  I call post on it

User · Answer

I don t understand what exactly is the problem with implementing location listening functionality in the Service  It looks pretty similar to what you do in Activity  Just define a location listener and register for location updates  You can refer to the following code as example   Manifest file    lt uses-permission android name  android permission ACCESS FINE LOCATION    gt   lt uses-permission android name  android permission ACCESS COARSE LOCATION    gt   lt application     android icon   drawable ic launcher      android label   string app name   gt       lt activity android label   string app name  android name   LocationCheckerActivity   gt           lt intent-filter  gt               lt action android name  android intent action MAIN    gt               lt category android name  android intent category LAUNCHER    gt           lt  intent-filter gt       lt  activity gt       lt service android name   MyService  android process   my service    gt   lt  application gt    The service file   import android app Service  import android content Context  import android content Intent  import android location Location  import android location LocationManager  import android os Bundle  import android os IBinder  import android util Log   public class MyService extends Service        private static final String TAG    BOOMBOOMTESTGPS       private LocationManager mLocationManager   null      private static final int LOCATION INTERVAL   1000      private static final float LOCATION DISTANCE   10f       private class LocationListener implements android location LocationListener           Location mLastLocation           public LocationListener String provider                Log e TAG   LocationListener     provider               mLastLocation   new Location provider                       Override         public void onLocationChanged Location location                Log e TAG   onLocationChanged      location               mLastLocation set location                       Override         public void onProviderDisabled String provider                Log e TAG   onProviderDisabled      provider                       Override         public void onProviderEnabled String provider                Log e TAG   onProviderEnabled      provider                       Override         public void onStatusChanged String provider  int status  Bundle extras                Log e TAG   onStatusChanged      provider                        LocationListener   mLocationListeners   new LocationListener                new LocationListener LocationManager GPS PROVIDER               new LocationListener LocationManager NETWORK PROVIDER               Override     public IBinder onBind Intent arg0            return null              Override     public int onStartCommand Intent intent  int flags  int startId            Log e TAG   onStartCommand            super onStartCommand intent  flags  startId           return START STICKY              Override     public void onCreate             Log e TAG   onCreate            initializeLocationManager            try               mLocationManager requestLocationUpdates                      LocationManager NETWORK PROVIDER  LOCATION INTERVAL  LOCATION DISTANCE                      mLocationListeners 1              catch  java lang SecurityException ex                Log i TAG   fail to request location update  ignore   ex             catch  IllegalArgumentException ex                Log d TAG   network provider does not exist      ex getMessage                       try               mLocationManager requestLocationUpdates                      LocationManager GPS PROVIDER  LOCATION INTERVAL  LOCATION DISTANCE                      mLocationListeners 0              catch  java lang SecurityException ex                Log i TAG   fail to request location update  ignore   ex             catch  IllegalArgumentException ex                Log d TAG   gps provider does not exist     ex getMessage                           Override     public void onDestroy             Log e TAG   onDestroy            super onDestroy            if  mLocationManager    null                for  int i   0  i  lt  mLocationListeners length  i                      try                       mLocationManager removeUpdates mLocationListeners i                      catch  Exception ex                        Log i TAG   fail to remove location listners  ignore   ex                                                        private void initializeLocationManager             Log e TAG   initializeLocationManager            if  mLocationManager    null                mLocationManager    LocationManager  getApplicationContext   getSystemService Context LOCATION SERVICE

User · Answer

Here is my solution  Step1  Register Serice in manifest   lt receiver     android name   MySMSBroadcastReceiver      android exported  true  gt       lt intent-filter gt           lt action android name  com google android gms auth api phone SMS RETRIEVED    gt       lt  intent-filter gt   lt  receiver gt    Step2  Code Of Service  public class FusedLocationService extends Service        private String mLastUpdateTime   null          bunch of location related apis     private FusedLocationProviderClient mFusedLocationClient      private SettingsClient mSettingsClient      private LocationRequest mLocationRequest      private LocationSettingsRequest mLocationSettingsRequest      private LocationCallback mLocationCallback      private Location lastLocation          location updates interval - 10sec     private static final long UPDATE INTERVAL IN MILLISECONDS   5000          fastest updates interval - 5 sec        location updates will be received if another app is requesting the locations        than your app can handle     private static final long FASTEST UPDATE INTERVAL IN MILLISECONDS   500      private DatabaseReference locationRef      private int notificationBuilder   0      private boolean isInitRef        Override     public int onStartCommand Intent intent  int flags  int startId            Log log  LOCATION GET DURATION    start in service            init            return START STICKY                        Initilize Location Apis        Create Builder if Share location true             private void init             mFusedLocationClient   LocationServices getFusedLocationProviderClient this           mSettingsClient   LocationServices getSettingsClient this           mLocationCallback   new LocationCallback                  Override             public void onLocationResult LocationResult locationResult                    super onLocationResult locationResult                   receiveLocation locationResult                                     mLocationRequest   new LocationRequest            mLocationRequest setInterval UPDATE INTERVAL IN MILLISECONDS           mLocationRequest setFastestInterval FASTEST UPDATE INTERVAL IN MILLISECONDS           mLocationRequest setPriority LocationRequest PRIORITY HIGH ACCURACY            LocationSettingsRequest Builder builder   new LocationSettingsRequest Builder            builder addLocationRequest mLocationRequest           mLocationSettingsRequest   builder build            startLocationUpdates                          Request Location Update              SuppressLint  MissingPermission       private void startLocationUpdates             mSettingsClient                  checkLocationSettings mLocationSettingsRequest                   addOnSuccessListener locationSettingsResponse - gt                        Log log TAG   All location settings are satisfied  No MissingPermission                           noinspection MissingPermission                     mFusedLocationClient requestLocationUpdates mLocationRequest  mLocationCallback  Looper myLooper                                         addOnFailureListener e - gt                        int statusCode     ApiException  e  getStatusCode                        switch  statusCode                            case LocationSettingsStatusCodes RESOLUTION REQUIRED                              Log loge  Location settings are not satisfied  Attempting to upgrade      location settings                                 break                          case LocationSettingsStatusCodes SETTINGS CHANGE UNAVAILABLE                              Log loge  Location settings are inadequate  and cannot be      fixed here  Fix in Settings                                                                     onLocationResult        on Receive Location  share to other activity and save if save true                param locationResult             private void receiveLocation LocationResult locationResult            lastLocation   locationResult getLastLocation             LocationInstance getInstance   changeState lastLocation            saveLocation               private void saveLocation             String saveLocation   getsaveLocationStatus this            if  saveLocation equalsIgnoreCase  true    amp  amp  notificationBuilder    0                notificationBuilder                notificationBuilder   1            else if  saveLocation equalsIgnoreCase  false    amp  amp  notificationBuilder    1                  NotificationManager  getSystemService Context NOTIFICATION SERVICE   cancel 1               notificationBuilder   0                     Log logd  receiveLocation   Share  -     saveLocation       Lat     lastLocation getLatitude        Lng    lastLocation getLongitude         Time  -     mLastUpdateTime            if  saveLocation equalsIgnoreCase  true      getPreviousMin    lt  getCurrentMin                  setLatLng this  lastLocation                mLastUpdateTime   DateFormat getTimeInstance   format new Date                  if  isOnline this   amp  amp   getUserId this  equalsIgnoreCase                        if   isInitRef                        locationRef   getFirebaseInstance   child getUserId this   child  location                        isInitRef   true                                    if  isInitRef                        locationRef setValue new LocationModel lastLocation getLatitude    lastLocation getLongitude    mLastUpdateTime                                                         private int getPreviousMin             int previous min   0          if  mLastUpdateTime    null                String   pretime   mLastUpdateTime split                   previous min   Integer parseInt pretime 1  trim      1               if  previous min  gt  59                    previous min   0                                  return previous min              Override     public void onDestroy             super onDestroy            stopLocationUpdates                          Remove Location Update             public void stopLocationUpdates             mFusedLocationClient                  removeLocationUpdates mLocationCallback                   addOnCompleteListener task - gt  Log logd  stopLocationUpdates                   private void notificationBuilder             if  Build VERSION SDK INT  gt   26                String CHANNEL ID    my channel 01               NotificationChannel channel   new NotificationChannel CHANNEL ID   Channel human readable title                       NotificationManager IMPORTANCE DEFAULT                  NotificationManager  getSystemService Context NOTIFICATION SERVICE   createNotificationChannel channel                Notification notification   new NotificationCompat Builder this  CHANNEL ID                       setContentTitle                          setContentText     build                 startForeground 1  notification                         Override     public IBinder onBind Intent intent            return null            Step 3    lt uses-permission android name  android permission ACCESS COARSE LOCATION    gt   lt uses-permission android name  android permission ACCESS FINE LOCATION    gt   lt uses-permission android name  android permission FOREGROUND SERVICE    gt    Step 4  implementation  com google android gms play-services-location 16 0 0

User · Answer

All these answers doesn t work from M - to - Android O  - 8  Due to Dozer mode that restrict the service - whatever service or any background operation that requires discrete things in background would be no longer able to run   So the approach would be listening to the system FusedLocationApiClient through BroadCastReciever that always listening the location and work even in Doze mode   Posting the link would be pointless  please search FusedLocation with Broadcast receiver   Thanks

User · Answer

public class GPSService extends Service implements GoogleApiClient ConnectionCallbacks  GoogleApiClient OnConnectionFailedListener  com google android gms location LocationListener       private LocationRequest mLocationRequest      private GoogleApiClient mGoogleApiClient      private static final String LOGSERVICE                    Override     public void onCreate             super onCreate            buildGoogleApiClient            Log i LOGSERVICE   onCreate                 Override     public int onStartCommand Intent intent  int flags  int startId            Log i LOGSERVICE   onStartCommand             if   mGoogleApiClient isConnected                mGoogleApiClient connect            return START STICKY               Override     public void onConnected Bundle bundle            Log i LOGSERVICE   onConnected    bundle            Location l   LocationServices FusedLocationApi getLastLocation mGoogleApiClient           if  l    null                Log i LOGSERVICE   lat     l getLatitude                 Log i LOGSERVICE   lng     l getLongitude                         startLocationUpdate                Override     public void onConnectionSuspended int i            Log i LOGSERVICE   onConnectionSuspended     i                Override     public void onLocationChanged Location location            Log i LOGSERVICE   lat     location getLatitude             Log i LOGSERVICE   lng     location getLongitude             LatLng mLocation    new LatLng location getLatitude    location getLongitude              EventBus getDefault   post mLocation                Override     public void onDestroy             super onDestroy            Log i LOGSERVICE   onDestroy - Estou sendo destruido                  Nullable      Override     public IBinder onBind Intent intent            return null              Override     public void onConnectionFailed ConnectionResult connectionResult            Log i LOGSERVICE   onConnectionFailed                 private void initLocationRequest             mLocationRequest   new LocationRequest            mLocationRequest setInterval 5000           mLocationRequest setFastestInterval 2000           mLocationRequest setPriority LocationRequest PRIORITY HIGH ACCURACY               private void startLocationUpdate             initLocationRequest             if  ActivityCompat checkSelfPermission this  Manifest permission ACCESS FINE LOCATION     PackageManager PERMISSION GRANTED  amp  amp  ActivityCompat checkSelfPermission this  Manifest permission ACCESS COARSE LOCATION     PackageManager PERMISSION GRANTED                   TODO  Consider calling                   ActivityCompat requestPermissions                here to request the missing permissions  and then overriding                  public void onRequestPermissionsResult int requestCode  String   permissions                                                          int   grantResults                 to handle the case where the user grants the permission  See the documentation                for ActivityCompat requestPermissions for more details              return                    LocationServices FusedLocationApi requestLocationUpdates mGoogleApiClient  mLocationRequest  this              private void stopLocationUpdate             LocationServices FusedLocationApi removeLocationUpdates mGoogleApiClient  this               protected synchronized void buildGoogleApiClient             mGoogleApiClient   new GoogleApiClient Builder this                   addOnConnectionFailedListener this                   addConnectionCallbacks this                   addApi LocationServices API                   build

[android] Get GPS location via a service in Android

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