I have a service that when it creates and starts, initiates prerequisites of using FusedLocationAPI . buildGoogleApiClient() and createLocationRequest() with parameters that initiated by my getConfig() method from database.
This solution works great and accurate with parameters like:
UPDATE_INTERVAL= 10000 (10 sec) , FASTEST_INTERVAL= 5000 (5 sec) , DISPLACEMENT= 10 ( m )
But I need to set interval up to 5 minutes. So when i set prameters like :
UPDATE_INTERVAL= 300000 (5 min) , FASTEST_INTERVAL= 180000 (3 min) , DISPLACEMENT= 10 ( m )
GPS behaves differently and after 30 seconds stops searching GPS and location notification that blinks, disappears.
And starts searching again after device locked and unlocked or this Service stops and starts again.
Here is my service. Please tell me why searching GPS stops right after 30 seconds.
Thanks in advanece.
public class MainService extends Service implements ConnectionCallbacks,
OnConnectionFailedListener, LocationListener {
private final static String TAG = MainActivity.class.getSimpleName();
private static int UPDATE_INTERVAL;
private static int FASTEST_INTERVAL;
private static int DISPLACEMENT;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
private Location mLastLocation;
public String deviceIMEI;
public boolean isGpsEnabled = false;
DatabaseHelper mDBHelper;
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate() {
super.onCreate();
getDeviceIMEI();
getConfig();
startForeGroundService();
if (checkPlayServices() && checkLocationServices()) {
buildGoogleApiClient();
createLocationRequest();
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (mGoogleApiClient != null)
mGoogleApiClient.connect();
else {
stopForeground(true);
stopSelf();
}
return (START_NOT_STICKY);
}
#Override
public void onDestroy() {
stopForeground(true);
if (mGoogleApiClient != null)
LocationServices.FusedLocationApi.removeLocationUpdates(
mGoogleApiClient, this);
mGoogleApiClient.disconnect();
}
#SuppressWarnings("deprecation")
public void startForeGroundService() {
Notification note = new Notification(
R.drawable.track_notification_alert,
"GPS tracking started ...", System.currentTimeMillis());
Intent i = new Intent();
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pi = PendingIntent.getActivity(this, 0, i, 0);
note.setLatestEventInfo(this, "GPS is active.",
"Now this tablet is under tracking. ", pi);
note.flags |= Notification.FLAG_NO_CLEAR;
startForeground(1337, note);
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API).build();
}
protected void createLocationRequest() {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(UPDATE_INTERVAL);
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
mLocationRequest.setSmallestDisplacement(DISPLACEMENT);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
private boolean checkLocationServices() {
LocationManager lm = (LocationManager) getApplicationContext()
.getSystemService(LOCATION_SERVICE);
isGpsEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
return isGpsEnabled;
}
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil
.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
return false;
}
return true;
}
#Override
public void onConnected(Bundle arg0) {
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
if (Globals.isSatelliteFix && Globals.isGPSEnable)
setPoint();
}
#Override
public void onConnectionSuspended(int arg0) {
mGoogleApiClient.connect();
}
#Override
public void onConnectionFailed(ConnectionResult result) {
Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = "
+ result.getErrorCode());
}
#Override
public void onLocationChanged(Location location) {
mLastLocation = location;
if (Globals.isSatelliteFix && Globals.isGPSEnable)
setPoint();
}
private void setPoint() {
mDBHelper = new DatabaseHelper(getApplicationContext());
mLastLocation = LocationServices.FusedLocationApi
.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
double latitude = mLastLocation.getLatitude();
double longitude = mLastLocation.getLongitude();
try {
Point p = new Point();
p.setId(UUID.randomUUID().toString());
p.setIMEI(deviceIMEI);
p.setLatitude(String.valueOf(latitude));
p.setLongitude(String.valueOf(longitude));
p.setTimeStamp(createTimeStamp());
long result = mDBHelper.addPoint(p);
if (result != -1) {
Log.i(TAG, "Insertion Successfull With RowId: " + result);
} else
Log.e(TAG, "Insertion Error");
} catch (Exception e) {
e.printStackTrace();
Log.e(TAG, "Insertion Error: " + e.getMessage());
}
}
}
public String createTimeStamp() {
String strTimeStamp = new SimpleDateFormat("yyyy-MM-dd_kk:mm:ss")
.format(new Date());
return strTimeStamp;
}
public void getDeviceIMEI() {
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
deviceIMEI = telephonyManager.getDeviceId();
}
public long getTimeInMiliSeconds() {
Calendar calendar = Calendar.getInstance();
Date date = calendar.getTime();
return date.getTime();
}
public void getConfig() {
Config config = new Config();
mDBHelper = new DatabaseHelper(getApplicationContext());
config = mDBHelper.getConfig();
UPDATE_INTERVAL = config.getUpdateInterval();
FASTEST_INTERVAL = config.getFastestInterval();
DISPLACEMENT = config.getSmallestDisplacement();
}
}
Related
I am using a WorkManager as follows -
class LocationWorker(
ctx: Context, params: WorkerParameters
) : CoroutineWorker(ctx, params), KoinComponent {
private val locationDataRepository: LocationDataRepository by inject()
override suspend fun doWork(): Result {
return try {
locationDataRepository.triggerLocationUpdates()
Result.success()
} catch (e: Exception) {
Result.failure()
}
}
}
I trigger the Worker as -
val myWorker =
PeriodicWorkRequestBuilder<LocationWorker>(
15,
TimeUnit.MINUTES
).addTag(
"location"
).build()
WorkManager.getInstance(context).enqueueUniquePeriodicWork(
"location",
ExistingPeriodicWorkPolicy.KEEP,
myWorker
)
As you see, the WorkManager minimum period is 15 minutes. I want to track the location for very short intervals say every few seconds and also I want the location to be tracked even when the phone screen is off. Is WorkManager the right choice for my requirements or would you suggest me some other API?
It might help you it works even when the app is killed..I'm just a tad
concerned when device enters doze mode as gps cannot be accessed when
device is stationary
foreground service main purpose is to run with a persistent notification when the app is killed
LocationService.class
public class LocationService extends Service implements
GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
public static final long UPDATE_INTERVAL_IN_MILLISECONDS = 1000 * 30; //30 secs
public static final long FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS =
UPDATE_INTERVAL_IN_MILLISECONDS / 2;
protected static final String TAG = "LocationUpdateService";
public static final int HORIZONTAL_ACCURACY_IN_METERS = 100;
/**
* The identifier for the notification displayed for the foreground service.
*/
private static final int NOTIFICATION_ID = 12345678;
public static boolean mRequestingLocationUpdates = false;
public boolean isEnded = false;
protected GoogleApiClient mGoogleApiClient;
protected LocationRequest mLocationRequest;
private SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
private double latitude = 0;
private double longitude = 0;
private float[] results1 = new float[1];
private float distanceInMeters = 0;
private Handler mHandler;
#Override
public void onCreate() {
super.onCreate();
String CHANNEL_ID = "FOREGROUND_CHANNEL";
if (Build.VERSION.SDK_INT >= 26) {
NotificationChannel channel = new NotificationChannel(CHANNEL_ID,
"location_notification",
NotificationManager.IMPORTANCE_DEFAULT);
((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);
}
Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
.setOngoing(true)
.setContentTitle("G Star")
.setSmallIcon(R.drawable.gm_noti_logo)
.setContentText("Running").build();
startForeground(NOTIFICATION_ID, notification);
Utility.getInstance().makeDescriptiveLogs("ON CREATE WAS HIT");
sendLocationDataToServerPeriodically();
}
private void sendLocationDataToServerPeriodically() {
//getting the alarm manager
AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
//creating a new intent specifying the broadcast receiver
Intent intentLR = new Intent(this, PostLocationReceiver.class);
PendingIntent pi = PendingIntent.getBroadcast(this, 0, intentLR,
PendingIntent.FLAG_UPDATE_CURRENT);
if (android.os.Build.VERSION.SDK_INT >= 23) {
assert am != null;
am.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
AlarmManager.INTERVAL_FIFTEEN_MINUTES, pi);
} else if (Build.VERSION.SDK_INT >= 19) {
if (am != null) {
am.setInexactRepeating(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES, pi);
}
} else {
if (am != null) {
am.setRepeating(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES, pi);
}
}
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
isEnded = false;
Utility.getInstance().makeDescriptiveLogs("ONSTART COMMAND WAS HIT");
buildGoogleApiClient();
if (mGoogleApiClient.isConnected() && mRequestingLocationUpdates) {
startLocationUpdates();
}
mHandler = new Handler();
return START_STICKY;
}
#Override
public void onConnected(Bundle bundle) {
startLocationUpdates();
}
#Override
public void onConnectionSuspended(int i) {
// The connection to Google Play services was lost for some reason. We call connect() to
// attempt to re-establish the connection.
mGoogleApiClient.connect();
}
#Override
public void onLocationChanged(Location location) {
if (location.getAccuracy() < HORIZONTAL_ACCURACY_IN_METERS)
updateUI(location);
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
// Refer to the javadoc for ConnectionResult to see what error codes might be returned in
// onConnectionFailed.
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
createLocationRequest();
}
/**
* Updates the latitude, the longitude, and the last location time in the UI.
*/
private void updateUI(Location mCurrentLocation) {
mHandler.post(() -> {
/*GET DEVICE CURRENT BATTERY LEVEL*/
int batteryPercent = Utility.getInstance().getBatteryPercentage(LocationService.this);
/* CALCULATE DISTANCE BETWEEN LAT LONG INTERVALS*/
if (latitude != 0 && longitude != 0) {
Location.distanceBetween(latitude, longitude, mCurrentLocation.getLatitude(), mCurrentLocation.getLongitude(), results1);
distanceInMeters = results1[0];
}
latitude = mCurrentLocation.getLatitude();
longitude = mCurrentLocation.getLongitude();
/*CHECK IF DEVICE HAS ACTIVE INTERNET CONNECTION*/
String networkStatus = Utility.getInstance().checkConnection(LocationService.this) ? "1" : "0";
/*CHECK NETWORK SIGNAL STRENGTH*/
String signalStrength = Utility.getInstance().getSignalStrength(LocationService.this);
SQLiteDBHandler db = SQLiteDBHandler.getInstance(LocationService.this);
db.insertDeviceLocation(mCurrentLocation.getLatitude(), mCurrentLocation.getLongitude(), Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? mCurrentLocation.getSpeedAccuracyMetersPerSecond() : mCurrentLocation.getSpeed(), sdf.format(Calendar.getInstance().getTime()), distanceInMeters, batteryPercent, networkStatus, signalStrength);
});
}
protected void createLocationRequest() {
mGoogleApiClient.connect();
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setSmallestDisplacement(5);
mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
/**
* Requests location updates from the FusedLocationApi.
*/
public void startLocationUpdates() {
if (!mRequestingLocationUpdates) {
mRequestingLocationUpdates = true;
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
isEnded = true;
}
}
/**
* Removes location updates from the FusedLocationApi.
*/
public void stopLocationUpdates() {
if (mRequestingLocationUpdates) {
mRequestingLocationUpdates = false;
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
}
}
#Override
public void onDestroy() {
mHandler.removeCallbacksAndMessages(null);
stopLocationUpdates();
super.onDestroy();
}
}
I think that this codelab is the best solution. Without the WorkManager, but for me it works in AccessibilityService ( I realized it like an alternative to ForegroundService) to escape the permanent notification https://codelabs.developers.google.com/codelabs/background-location-updates-android-o/#0
I want to detect user trip and when trip is started, I have to get LatLng in every 5 seconds. I am using Google FusedLocationAPI and My problem is until My GPS is enabled then its calculating all distance but Once I disabled GPS the its stucked. How can I Show pending trip if user Disabled GPS in mid of trip ?
My Service class is :
public class TripStartedService extends Service implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
public static long UPDATE_INTERVAL_IN_MILLISECONDS = 1000 * 5;
public static final long FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS = UPDATE_INTERVAL_IN_MILLISECONDS / 2;
public GoogleApiClient mGoogleApiClient;
public LocationRequest mLocationRequest;
private PendingIntent mPendingIntent;
IBinder mBinder = new TripStartedService.LocalBinder();
public static boolean isGPSOn = false;
#Override
public void onCreate() {
super.onCreate();
Intent mIntentService = new Intent(this, TripStartedIntent.class);
mPendingIntent = PendingIntent.getService(this, 1, mIntentService, PendingIntent.FLAG_UPDATE_CURRENT);
buildGoogleApiClient();
}
protected synchronized void buildGoogleApiClient() {
Log.i("", "Building GoogleApiClient");
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
createLocationRequest();
}
private void createLocationRequest() {
Log.i("TRIP_START_Request", "createLocationRequest()");
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
#Override
public void onConnected(Bundle bundle) {
startLocationUpdates();
}
#Override
public void onConnectionSuspended(int i) {
Log.i("", "Connection suspended");
mGoogleApiClient.connect();
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
Log.i("", "Connection failed: ConnectionResult.getErrorCode() = " + connectionResult.getErrorCode());
}
#Override
public void onLocationChanged(Location location) {
String message = "Latitude : " + location.getLatitude() + "\n Longitude : " + location.getLongitude() + "\n Accuracy: " + location.getAccuracy();
Log.i("", "onLocationChanged: " + message);
}
private void startLocationUpdates() {
Log.i("", "Started Location Updates");
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, mPendingIntent);
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
LocationManager manager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
isGPSOn = manager.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (mGoogleApiClient.isConnected()) {
Log.i("GPS init" + " onStartCmd", "Connected");
return START_STICKY;
}
if (!mGoogleApiClient.isConnected() || !mGoogleApiClient.isConnecting()) {
Log.i("Connceti" + " onStartCmd", "GoogleApiClient not Connected");
mGoogleApiClient.connect();
}
return START_STICKY;
}
private class LocalBinder extends Binder {
public TripStartedService getServerInstance() {
return TripStartedService.this;
}
}
#Override
public void onDestroy() {
super.onDestroy();
stopLocationUpdates();
}
public void stopLocationUpdates() {
Log.i("", "Stopped Location Updates");
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, mPendingIntent);
}
}
And My Calculation Class is
if (isGPSOn) {
try {
LocDatabaseHelper database = new LocDatabaseHelper(activity);
Timestamp timestamp_start = new Timestamp(System.currentTimeMillis());
Timestamp timestamp_end = new Timestamp(System.currentTimeMillis());
final int TRIP_START_ID = 0;
ContentValues contentValues = new ContentValues();
final ArrayList<TripDistanceModels> trip_list_values = database.getTripDistance();
try {
Location loc1 = new Location("");
loc1.setLatitude(Double.parseDouble(trip_list_values.get(0).getLatitude()));
loc1.setLongitude(Double.parseDouble(trip_list_values.get(0).getLongitude()));
Location loc2 = new Location("");
loc2.setLatitude(Double.parseDouble(trip_list_values.get(1).getLatitude()));
loc2.setLongitude(Double.parseDouble(trip_list_values.get(1).getLongitude()));
} catch (Exception e) {
e.printStackTrace();
}
contentValues.put(TRIP_STARTED_ID, TRIP_START_ID);
contentValues.put(TRIP_STARTED_LATTITUDE, start_trip_location.getLatitude());
contentValues.put(TRIP_STARTED_LONGITUDE, start_trip_location.getLongitude());
contentValues.put(TRIP_STARTED_TIMESTAMP, String.valueOf(timestamp_start));
contentValues.put(TRIP_END_TIMESTAMP, String.valueOf(timestamp_end));
database.tripInsertionOnDetect(TRIP_START_ID, start_trip_location.getLatitude(), start_trip_location.getLongitude(), timestamp_start, timestamp_end, "pending status");
Log.d("TRIP STARTRED", contentValues.toString());
final int trip_counts = database.getRowCountForTripStarted();
final int back_counts = database.getRowCountForBackground();
Log.e("TRip Database Rows Size", "" + trip_counts + "\t \tBackGroundTable Rows : " + back_counts + "\tGPS>>>: " + Boolean.toString(isGPSOn));
activity.stopService(new Intent(activity, BackgroundLocationService.class));
} catch (Exception e) {
e.printStackTrace();
}
}
If your gps is not enable then you can use cell tower location. it's not accurate. you can get near by location.
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();
}
}
}
You should add a broadcast receiver to detect if the gps is enabled or disable :
private BroadcastReceiver gpsReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().matches("android.location.PROVIDERS_CHANGED")) {
LocationManager manager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
boolean isGpsEnabled = manager.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (intent.getAction().matches("android.location.PROVIDERS_CHANGED")) {
if (isGpsEnabled) {
//Here code when gps is enabled
} else {
//Here code when gps is disabled
}
}
}
}
};
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
registerReceiver(gpsReceiver, new IntentFilter("android.location.PROVIDERS_CHANGED"));
//here other code ...
return super.onStartCommand(intent, flags, startId);
}
I have a jobScheduler with fusedLocationApi provider. It works alright but once a while it gives null value for a no. of time (6-7 times in a sequence). I tried onLocationChanged() and LocationServices.FusedLocationApi.requestLocationUpdates(), both gives null values at same time. How can I improve it? I have set high accuracy or Gps,wifi and mobile networks as locating method in device setting. thanks in advance.
One more thing, 80% of the null value are received when there is no wifi. I think Fused Api should have worked well without wifi as well Since there is gps available, isn't it?
Main class
public class LiveTrack extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_live_track);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
jobScheduler = (JobScheduler)getSystemService(JOB_SCHEDULER_SERVICE);
ComponentName jobService =
new ComponentName(getPackageName(), MyJobService.class.getName());
JobInfo jobInfo =
new JobInfo.Builder(MYJOBID, jobService).setPeriodic(15 * 60 * 1000L)
.setExtras(bundle)
.build();
int jobId = jobScheduler.schedule(jobInfo);
if(jobScheduler.schedule(jobInfo)>0){
Log.e("status","running");
}else{
Log.e("status","failed");
}
}
}
JobService class with fused Api Provider
public class MyJobService extends JobService
implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener
, LocationListener {
private GoogleApiClient mGoogleApiClient;
LocationRequest mLocationRequest;
private Location mLastLocation;
public static String latitude;
public static String latitudeIfNull;
public static String longitude;
public static String longitudeIfNull;
#Override
public boolean onStartJob(JobParameters jobParameters) {
setUpLocationClientIfNeeded();
mLocationRequest = LocationRequest.create();
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setInterval(30000);
mLocationRequest.setFastestInterval(30000);
return false;
}
#Override
public boolean onStopJob(JobParameters jobParameters) {
Toast.makeText(this,
"App has stopped working. Please open the app again. Thankyou",
Toast.LENGTH_LONG).show();
return false;
}
#Override
public void onConnected(#Nullable Bundle bundle) {
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(this.mGoogleApiClient,mLocationRequest, this);
createLocationRequest();
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
}
#Override
public void onConnectionSuspended(int i) {
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
private void setUpLocationClientIfNeeded()
{
if(mGoogleApiClient == null)
buildGoogleApiClient();
}
protected synchronized void buildGoogleApiClient() {
this.mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
this.mGoogleApiClient.connect();
}
#Override
public void onLocationChanged(Location location) {
latitudeIfNull = location.getLatitude() + "";
longitudeIfNull = location.getLongitude() + "";
Log.e("gps longitude",longitudeIfNull);
}
protected void createLocationRequest() {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(60000);
mLocationRequest.setFastestInterval(50000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, new LocationCallback() {
#Override
public void onLocationResult(final LocationResult locationResult) {
latitude = locationResult.getLastLocation().getLatitude() + "";
longitude = locationResult.getLastLocation().getLongitude() + "";
Log.i("latitude ", latitude + "");
Log.i("longitude ", longitude + "");
}
#Override
public void onLocationAvailability(LocationAvailability locationAvailability) {
Log.i("onLocationAvailability", "onLocationAvailability: isLocationAvailable = " + locationAvailability.isLocationAvailable());
}
}, null);
}
}
.
Try this
Create a background service class like this
public class LocationBackGroundService extends Service implements LocationListener,
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = "LocationBackGroundService";
private static final long INTERVAL = 100;
private static final long FASTEST_INTERVAL = 100;
LocationRequest mLocationRequest;
GoogleApiClient mGoogleApiClient;
Location mCurrentLocation;
Context mCOntext;
public void LocationBackGroundService(Context mContext) {
this.mCOntext = mContext;
}
protected void createLocationRequest() {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(INTERVAL);
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
#Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
mGoogleApiClient.connect();
}
#Override
public void onCreate() {
super.onCreate();
if (!isGooglePlayServicesAvailable()) {
// finish();
}
createLocationRequest();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
if (mGoogleApiClient.isConnected()) {
startLocationUpdates();
}
}
private boolean isGooglePlayServicesAvailable() {
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (ConnectionResult.SUCCESS == status) {
return true;
} else {
return false;
}
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onConnected(Bundle bundle) {
startLocationUpdates();
}
protected void startLocationUpdates() {
PendingResult<Status> pendingResult = LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
Log.d(TAG, "Location update started ..............: ");
}
#Override
public void onConnectionSuspended(int i) {
Toast.makeText(this, "OnConnection Suspended", Toast.LENGTH_SHORT).show();
}
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Toast.makeText(this, "OnConnection Failed", Toast.LENGTH_SHORT).show();
}
#Override
public void onLocationChanged(Location location) {
if (null != mCurrentLocation) {
mCurrentLocation = location;
String lat = String.valueOf(mCurrentLocation.getLatitude());
String lng = String.valueOf(mCurrentLocation.getLongitude());
}
}
}
And call when activity starts like this
startService(new Intent(this, yourBackgroundServiceName.class));
and in menifest
<service android:name=".yourBackgroundServiceName"></service>
and don;t forget to add run time permissions before stating a service
I want to run location update as a service. Now I can able to run the service correctly but the location updation is happening twice, Here is the code,
AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<service
android:name=".services.LocationService"
android:icon="#drawable/ic_location"
android:label="Location Service">
<intent-filter>
<action android:name="android.service.notification.service" />
</intent-filter>
</service>
In the Activity Class we are using startLocationService() to start the service and stopLocationService() to stop the service, Also created a Broadcast Receiver to get the location updation on the Activity Calss.
private BroadcastReceiver broadcastReceiver;
private Intent mLocationServiceIntent;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navigtaion_drawer);
AppController.getInstance().activityResumed();
broadcastReceiver = createBroadcastReceiver();
registerReceiver(broadcastReceiver, new IntentFilter(getPackageName()));
if (!Permissions.hasLocationPermission(this)) {
Permissions.requestLocationPermission(this, PermissionKeys.LOCATION_REQUEST_HOME_ON_RESUME);
} else
startLocationService();
}
private BroadcastReceiver createBroadcastReceiver() {
return new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.hasExtra(LocationService.LOCATION_UPDATED)) {
Bundle b = intent.getExtras();
if (b != null) {
Location mCurrentLocation = (Location) b.get(LocationService.LOCATION_UPDATED);
}
}
}
};
}
//Function To Start the Service
public void startLocationService() {
if (mLocationServiceIntent == null)
mLocationServiceIntent = new Intent(this, LocationService.class);
startService(mLocationServiceIntent);
}
//Function To Stop the Service
public void stopLocationService() {
if (mLocationServiceIntent != null)
stopService(mLocationServiceIntent);
}
LocationService.java
public class LocationService extends Service implements LocationListener, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
public static final String LOCATION_UPDATED = "LocationUpdated";
public static final String LATITUDE = "Latitude";
public static final String LONGITUDE = "Longitude";
LocationRequest mLocationRequest;
GoogleApiClient mGoogleApiClient;
private static final String TAG = "###LocationService:: ";
private static final int LOCATION_INTERVAL = 15000;
private static final int FASTEST_INTERVAL = 10000;
private static final float LOCATION_DISTANCE = 7f;
#Override
public void onCreate() {
if (isGooglePlayServicesAvailable()) {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(LOCATION_INTERVAL);
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
//mLocationRequest.setSmallestDisplacement(10.0f); /* min dist for location change, here it is 10 meter */
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
mGoogleApiClient.connect();
}
}
//Check Google play is available or not
private boolean isGooglePlayServicesAvailable() {
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
return ConnectionResult.SUCCESS == status;
}
#Override
public void onConnected(Bundle bundle) {
Log.e(TAG, "Connected");
startLocationUpdates();
}
#Override
public void onConnectionSuspended(int i) {
Log.e(TAG, "Connection suspended");
}
protected void startLocationUpdates() {
Log.e(TAG, "Start Location Updates");
try {
int permissionCheck = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION);
if (permissionCheck == PackageManager.PERMISSION_GRANTED) {
PendingResult<Status> pendingResult = LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
} catch (IllegalStateException e) {
}
}
#Override
public void onLocationChanged(Location location) {
if (location != null) {
Log.e(TAG, "Location Changed : " + location.getLatitude() + "," + location.getLongitude());
Intent intent = new Intent(getPackageName());
intent.putExtra(LOCATION_UPDATED, location);
sendBroadcast(intent);
}
}
/* 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) {
super.onStartCommand(intent, flags, startId);
return START_STICKY;
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
Log.e(TAG, "onConnectionFailed:: "+connectionResult.getErrorMessage());
}
}
I have fixed this issue by adding a condition checking before start the service,
My updated startLocationService() function is like,
//Function To Start the Service
public void startLocationService() {
if (mLocationServiceIntent == null)
mLocationServiceIntent = new Intent(this, LocationService.class);
if(!isServiceRunning(HomeScreenActivity.this, LocationService.class)) {
startService(mLocationServiceIntent);
}
}
Here is the function to check if the service is already running or not.
//This function is to check the service is already running or not
public boolean isServiceRunning(Context context, Class<?> serviceClass) {
ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (serviceClass.getName().equals(service.service.getClassName())) {
Log.e("ServiceRunning", serviceClass.getSimpleName() + " is alredy running");
return true;
}
}
return false;
}
I have written a background service to insert latitude , longitude and some other details into my sqlite database based on the time limit set in my AlarmManager.
I am using GoogleApiClient to calculate latitude and longitude , but i am facing some problems.
Problem
When i am travelling outside without net , the latitude and longitude is not getting updated at regular intervals. The data is getting inserted in my sqlite at regular intervals but latitude and longitude remains same even after half an hour though i am travelling some about 10 kms.
I want the latitude and longitude to change while i am travelling like auto update.
I wanted to know if the FusedLocationApi calculates latitude longitude properly even if i am not connected to the internet , if yes then i need some suggestions to improve the code that i have tried.
Code i have tried.
AlarmManagerService.java
public class AlarmManagerService extends Service implements
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener, LocationListener {
private static final String TAG = "AlarmManagerService";
AlarmReceiver alarmReceiver;
DriverDbHelper driverDbHelper;
Handler handler;
private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 1000;
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;
// Location updates intervals in sec
private static int UPDATE_INTERVAL = 120000; // 2 mins
private static int FATEST_INTERVAL = 60000; // 1 min
private static int DISPLACEMENT = 10; // 10 meters
public Activity activity;
protected String mLastUpdateTime;
String areaName0, areaName1, areaName2, areaName3, fullAreaName,
sessionMobileNo, sessionDriverName, sessionDID, sessiondriverUserId,
date, time, dateTime, doc, trac_transId;
double latitude, longitude;
PowerManager.WakeLock mWakeLock;
SessionManager session;
ConnectionDetector cd;
Boolean isInternet = false;
String sync_no = "No";
String sync_yes = "Yes";
public AlarmManagerService() {
alarmReceiver = new AlarmReceiver();
driverDbHelper = new DriverDbHelper(this);
cd = new ConnectionDetector(this);
}
public void setActivity(Activity activity) {
this.activity = activity;
}
#Override
public void onCreate() {
super.onCreate();
try {
driverDbHelper.open(AlarmManagerService.this);
} catch (Exception e) {
e.printStackTrace();
}
Log.d("Service created", "Alarm Service Created");
// First we need to check availability of play services
if (checkPlayServices()) {
// Building the GoogleApi client
buildGoogleApiClient();
createLocationRequest();
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
PowerManager mgr = (PowerManager)
getSystemService(Context.POWER_SERVICE);
if (this.mWakeLock == null) {
this.mWakeLock = mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
"MyWakeLock");
}
if (!this.mWakeLock.isHeld()) {
this.mWakeLock.acquire();
}
if (mGoogleApiClient != null) {
mGoogleApiClient.connect();
}
Log.d("Service started", "Alarm Service Started");
handler = new Handler(Looper.myLooper());
handler.post(new Runnable() {
#Override
public void run() {
postDatabaseDetails();
}
});
return START_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onDestroy() {
super.onDestroy();
Log.d("Service started", "Alarm Service Destroyed");
if (mGoogleApiClient.isConnected()) {
stopLocationUpdates();
mGoogleApiClient.disconnect();
}
if (this.mWakeLock != null) {
this.mWakeLock.release();
this.mWakeLock = null;
}
}
private void displayLocation() {
if (mLastLocation != null) {
latitude = mLastLocation.getLatitude();
longitude = mLastLocation.getLongitude();
List<Address> addressList = null;
try {
Geocoder gcd = new Geocoder(getBaseContext(),
Locale.getDefault());
addressList = gcd.getFromLocation(mLastLocation.getLatitude(),
mLastLocation.getLongitude(), 1);
if (addressList != null && addressList.size() > 0) {
Address address = addressList.get(0);
areaName0 = address.getLocality(); // city name
areaName1 = address.getSubLocality();
areaName2 = address.getAdminArea();// statename
//areaName3 = address.getFeatureName(); plot no
//areaName3 = address.getCountryCode();// IN
areaName3 = address.getThoroughfare();
fullAreaName = areaName3 + "\n" + areaName1 + "\n" +
areaName0 + "," + areaName2;
} else {
Log.i("Location ", "Location null");
}
} catch (IOException e1) {
Log.e("HomePage", "IO Exception in getFromLocation()");
e1.printStackTrace();
} catch (IllegalArgumentException e2) {
// Error message to post in the log
String errorString = "Illegal arguments " +
Double.toString(mLastLocation.getLatitude()) + " , " +
Double.toString(mLastLocation.getLongitude()) +
" passed to address service";
Log.e("HomePage", errorString);
e2.printStackTrace();
}
}
}
/**
* 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, activity,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.i("Google play services", "Device not supported");
activity.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);
}
#Override
public void onConnected(Bundle bundle) {
// Once connected with google api, get the location
//displayLocation();
if (mRequestingLocationUpdates) {
startLocationUpdates();
}
if (mLastLocation == null) {
mLastLocation =
LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
displayLocation();
}
}
#Override
public void onConnectionSuspended(int i) {
mGoogleApiClient.connect();
}
#Override
public void onLocationChanged(Location location) {
// Assign the new location
mLastLocation = location;
mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
Log.d("Location changed ", "Location changed " + mLastLocation);
Log.d("Last updated time", "Last updated location " + mLastUpdateTime);
// Displaying the new location on UI
displayLocation();
}
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = "
+ connectionResult.getErrorCode());
}
public void postDatabaseDetails() {
session = new SessionManager(getApplicationContext());
HashMap<String, String> user = session.getUserDetails();
sessionMobileNo = user.get(SessionManager.KEY_MOBILENO);
sessionDriverName = user.get(SessionManager.KEY_NAME);
sessionDID = user.get(SessionManager.KEY_DEVICEID);
sessiondriverUserId = user.get(SessionManager.KEY_DRIVERUSERID);
Calendar in = Calendar.getInstance();
Date dt = new Date();
in.setTimeZone(TimeZone.getTimeZone("Asia/Kolkata"));
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
SimpleDateFormat stf = new SimpleDateFormat("HH:mm:ss");
date = sdf.format(dt);
time = stf.format(dt);
String timeval = time.toString();
String dateval = date.toString();
dateTime = date.toString() + " " + time.toString();
doc = sessionDID + "" + dateTime;
isInternet = cd.isConnectingToInternet();
if (isInternet) {
long id = driverDbHelper.insertDriverDetails(doc, sessionDID,
sessiondriverUserId, latitude, longitude,
fullAreaName, dateTime, "DEMO", sync_no, dateval, timeval);
postDriverDetails();
Log.d("GPS", "Service started after 2 mins with internet");
} else {
Log.d("Internet status", "No internet available for service");
long id = driverDbHelper.insertDriverDetails(doc, sessionDID,
sessiondriverUserId, latitude, longitude,
"NA", dateTime, "DEMO", sync_no, dateval, timeval);
Log.d("GPS", "Service started after 2 mins without internet");
}
}
I am calling this service from the activity HomePage.java , but from where do i have to call the below code , from onStart() or after setContentView(R.layout.home)?
try {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.MINUTE, 2);
AlarmManager am = (AlarmManager)
getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(Home_Page.this, AlarmManagerService.class);
PendingIntent pi = PendingIntent.getService(Home_Page.this, 0, i,0);
am.setInexactRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), EXEC_INTERVAL, pi);
} catch (Exception e) {
e.printStackTrace();
}
I hope i can get some suggestions to improve the above service code as i want it to run smoothly in background updating the latitude and longitude at regular intervals.