Location Tracking Issue in Foreground Mode with flutter_background_geolocation

[AniketStemmOne]

Your Environment

• Plugin version: flutter_background_geolocation: ^4.13.5
• Platform: Android
• OS version: 14
• Device manufacturer / model: OnePlus Nord CE 2 Lite (CPH2381)
• Flutter info (flutter doctor):
• Plugin config:
  flutter doctor
  Doctor summary (to see all details, run flutter doctor -v):
  [√] Flutter (Channel stable, 3.27.1, on Microsoft Windows [Version 10.0.22631.4602], locale en-IN)
  [√] Windows Version (Installed version of Windows is version 10 or higher)
  [√] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
  [√] Chrome - develop for the web
  [√] Visual Studio - develop Windows apps (Visual Studio Enterprise 2019 16.11.20)
  [√] Android Studio (version 2021.3)
  [√] Android Studio (version 2022.2)
  [√] VS Code (version 1.96.2)
  [√] Connected device (4 available)
  [√] Network resources

bg.BackgroundGeolocation.ready(bg.Config(  
  desiredAccuracy: bg.Config.DESIRED_ACCURACY_MEDIUM,  
  distanceFilter: 300,  
  enableHeadless: true,  
  stopOnTerminate: false,  
  autoSync: true,  
  geofenceModeHighAccuracy: false,  
  startOnBoot: true,  
  debug: false,  
  desiredOdometerAccuracy: 10,  
  geofenceInitialTriggerEntry: true,  
  logLevel: bg.Config.LOG_LEVEL_VERBOSE,  
  disableStopDetection: true,  
  pausesLocationUpdatesAutomatically: false,  
  heartbeatInterval: 300,  
  preventSuspend: true,  
  motionTriggerDelay: 1000,  
  geofenceProximityRadius: 100,  
  activityRecognitionInterval: 1000,  
));  

Expected Behavior

Location tracking should work consistently, regardless of whether the app is in the foreground or background.

Actual Behavior

Location tracking stops when the app is in the foreground and actively in use. No logs or location data are generated during this time.

Steps to Reproduce

1. Run the app on a OnePlus Nord CE 2 Lite device.
2. Start location tracking using the provided configuration.
3. Use the app actively or switch to other apps while traveling.
4. Observe that location tracking stops and no logs are generated.

Context

Trying to track real-time locations reliably for an active user.

Debug logs

Logs

  [c.t.l.l.TSLocationManager setOdometer] 
I/TSLocationManager(28506):   ℹ️  setOdometer: 0.0, isMoving: false
D/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] 
D/TSLocationManager(28506):   ℹ️  Clear last odometer location
I/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] 
I/TSLocationManager(28506): ╔═════════════════════════════════════════════
I/TSLocationManager(28506): ║ getCurrentPosition LocationResult: 1 (26169ms old)
I/TSLocationManager(28506): ╠═════════════════════════════════════════════
I/TSLocationManager(28506): ╟─ 📍  Location[fused 18.56****,73.92**** hAcc=20.0 et=+3d14h58m40s433ms alt=553.7000122070312 vAcc=1.0], time: 1736837518835
D/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] Median accuracy: 20.0
D/TSLocationManager(28506): [c.t.l.u.LocationAuthorization withPermission] 
D/TSLocationManager(28506):   ℹ️  LocationAuthorization: Permission granted
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  start [LocationRequestService  startId: 1, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.l.SingleLocationRequest startUpdatingLocation] 
I/TSLocationManager(28506):   🔵  [SingleLocationRequest start, action: 2, requestId: 1]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 1, eventCount: 0, sticky: true]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  2:1 [LocationRequestService  startId: 2, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.s.LocationRequestService b] 
I/TSLocationManager(28506):   ℹ️  Location availability: false
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 2, eventCount: 0, sticky: true]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  2:1 [LocationRequestService  startId: 3, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.s.LocationRequestService b] 
I/TSLocationManager(28506):   ℹ️  Location availability: true
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 3, eventCount: 0, sticky: true]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  2:1 [LocationRequestService  startId: 4, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] 


 ╔═════════════════════════════════════════════
I/TSLocationManager(28506): ║ getCurrentPosition LocationResult: 1 (1181ms old)
I/TSLocationManager(28506): ╠═════════════════════════════════════════════
I/TSLocationManager(28506): ╟─ 📍  Location[fused 18.56****,73.92**** hAcc=20.0 et=+3d14h59m6s751ms alt=553.7000122070312 vAcc=1.0], time: 1736837545153
D/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] Median accuracy: 20.0
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 4, eventCount: 0, sticky: true]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  2:1 [LocationRequestService  startId: 5, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.s.LocationRequestService b] 
I/TSLocationManager(28506):   ℹ️  Location availability: false
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 5, eventCount: 0, sticky: true]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  2:1 [LocationRequestService  startId: 6, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.s.LocationRequestService b] 
I/TSLocationManager(28506):   ℹ️  Location availability: true
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 6, eventCount: 0, sticky: true]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   🎾  2:1 [LocationRequestService  startId: 7, eventCount: 1]
I/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] 
I/TSLocationManager(28506): ╔═════════════════════════════════════════════
I/TSLocationManager(28506): ║ getCurrentPosition LocationResult: 1 (2421ms old)
I/TSLocationManager(28506): ╠═════════════════════════════════════════════
I/TSLocationManager(28506): ╟─ 📍  Location[fused 18.56****,73.92**** hAcc=20.0 et=+3d14h59m11s768ms alt=553.7000122070312 vAcc=1.0 vel=0.0039497516 sAcc=1.5], time: 1736837550170
I/TSLocationManager(28506): [c.t.l.l.TSLocationManager onSingleLocationResult]

[c.t.l.l.TSLocationManager onSingleLocationResult] 
I/TSLocationManager(28506):   🔵  Acquired current position
D/TSLocationManager(28506): [c.t.l.l.TSLocationManager a] Median accuracy: 20.0
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 7, eventCount: 0, sticky: false]
D/TSLocationManager(28506): [c.t.l.service.AbstractService b] 
D/TSLocationManager(28506):   🎾  STOP [LocationRequestService startId: 8, eventCount: 1]
D/TSLocationManager(28506): [c.t.l.service.AbstractService a] 
D/TSLocationManager(28506):   ⚙️︎   FINISH [LocationRequestService startId: 8, eventCount: 0, sticky: false]

[christocracy]

The plug-in operates no differently in background vs foreground.

have you read the wiki “Philosophy of Operation”?

distanceFilter: 300,

This is rather high.

You should be testing outside with real movement.

[christocracy]

geofenceProximityRadius: 100,

If you’re not using geofences (and monitoring < 100 geofences), this option is not used. 100 is also in invalid value, as the plug-in imposes a minimum value of 1000.

[AniketStemmOne]

Is it possible for the tracking process to stop or terminate if the app is in use in the foreground and performing other operations? The tracking works fine when the app is in the background or terminated state, but not when it is active in the foreground. ??

[christocracy]

Is it possible for the tracking process to stop or terminate if the app is in use in the foreground and performing other operations?

Not automatically, no. The plugin doesn't care if your app is in the foreground or background. It does not change its behaviour on app state. It only cares if the device moving or stationary.

[AniketStemmOne]

Detected invalid location (teleport) with apparent speed of 3313.2917 meters/s (distance from last location: 7749.7896 meters, dt: 2339.0)
W/TSLocationManager(19909): ! However, location mocking is detected. Normally, this location would be ignored as an anomaly.
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager a] Median accuracy: 6.5170984
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager c] Odometer: 9764.718
I/TSLocationManager(19909): [c.t.l.d.s.SQLiteLocationDAO persist]
I/TSLocationManager(19909): ✅ INSERT: 37e19857-194a-4cb1-a7aa-60bdbff391fd
D/TSLocationManager(19909): [c.t.l.service.AbstractService a]
D/TSLocationManager(19909): 🎾 start [TrackingService startId: 872, eventCount: 1]
D/TSLocationManager(19909): [c.t.l.service.TrackingService c]
D/TSLocationManager(19909): ╔═════════════════════════════════════════════
D/TSLocationManager(19909): ║ TrackingService: LocationResult
D/TSLocationManager(19909): ╠═════════════════════════════════════════════
D/TSLocationManager(19909): ╟─ 📍 Location[fused 18.51**,73.87** hAcc=6.5170984 et=+4d9h22m7s701ms alt=101.71888923009878 vel=16.00933 bear=142.43904 mock]
D/TSLocationManager(19909): ╟─ Age: 135ms, time: 1737273453112
D/TSLocationManager(19909): [c.t.l.service.AbstractService a]
D/TSLocationManager(19909): ⚙️︎ FINISH [TrackingService startId: 872, eventCount: 0, sticky: true]
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager onLocationResult]
D/TSLocationManager(19909): ╔═════════════════════════════════════════════
D/TSLocationManager(19909): ║ Process LocationResult
D/TSLocationManager(19909): ╠═════════════════════════════════════════════
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager onLocationResult]
D/TSLocationManager(19909): ℹ️ IGNORED: same as last location

D/TSLocationManager(19909): ╟─ Age: 135ms, time: 1737273483542
D/TSLocationManager(19909): [c.t.l.service.AbstractService a]
D/TSLocationManager(19909): ⚙️︎ FINISH [TrackingService startId: 886, eventCount: 0, sticky: true]
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager onLocationResult]
D/TSLocationManager(19909): ╔═════════════════════════════════════════════
D/TSLocationManager(19909): ║ Process LocationResult
D/TSLocationManager(19909): ╠═════════════════════════════════════════════
I/TSLocationManager(19909): [c.t.l.l.TSLocationManager onLocationResult]
I/TSLocationManager(19909): 🔵 Re-scaled distanceFilter: 200.0->800.0)
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager d] Distance from last location: 7769.1357, apparent speed: 3345.881
W/TSLocationManager(19909): [c.t.l.l.TSLocationManager d]
W/TSLocationManager(19909): ! Detected invalid location (teleport) with apparent speed of 3345.881 meters/s (distance from last location: 7769.1357 meters, dt: 2322.0)
W/TSLocationManager(19909): ! However, location mocking is detected. Normally, this location would be ignored as an anomaly.
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager a] Median accuracy: 5.8893433
I/TSLocationManager(19909): [c.t.l.d.s.SQLiteLocationDAO persist]
I/TSLocationManager(19909): ✅ INSERT: 095f6ad6-81c1-428a-b035-f97ca09990b2
D/TSLocationManager(19909): [c.t.l.service.AbstractService a]
D/TSLocationManager(19909): 🎾 start [TrackingService startId: 887, eventCount: 1]
D/TSLocationManager(19909): [c.t.l.service.TrackingService c]
D/TSLocationManager(19909): ╔═════════════════════════════════════════════
D/TSLocationManager(19909): ║ TrackingService: LocationResult
D/TSLocationManager(19909): ╠═════════════════════════════════════════════
D/TSLocationManager(19909): ╟─ 📍 Location[fused 18.51**,73.87** hAcc=5.8893433 et=+4d9h22m38s131ms alt=101.11274432612899 vel=16.480396 bear=178.95119 mock]
D/TSLocationManager(19909): ╟─ Age: 167ms, time: 1737273483542
D/TSLocationManager(19909): [c.t.l.service.AbstractService a]
D/TSLocationManager(19909): ⚙️︎ FINISH [TrackingService startId: 887, eventCount: 0, sticky: true]
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager onLocationResult]
D/TSLocationManager(19909): ╔═════════════════════════════════════════════
D/TSLocationManager(19909): ║ Process LocationResult
D/TSLocationManager(19909): ╠═════════════════════════════════════════════
D/TSLocationManager(19909): [c.t.l.l.TSLocationManager onLocationResult]
D/TSLocationManager(19909): ℹ️ IGNORED: same as last location

its getting logs
but function from where i am storing the data onLocation() Listener is not triggering
Please can you help me about this

[christocracy]

Are you testing with a mock location app? You cannot fully test this plug-ins natural behaviour with mocked location.

You need to go outside and test with real movement.