App Crashes when entering / leaving Background

[SeScherer]

Your Environment

• Plugin version: 3.0.0-alpha.43
• Platform: Android
• OS version: 8.1.0
• Device manufacturer and model:

• Running in Simulator: No
• Plugin configuration options:
  locationProvider: 1, // hint I could probably do with DISTANCE_FILTER_PROVIDER instead
  desiredAccuracy: 0,
  stationaryRadius: 25,
  distanceFilter: 20,
  notificationTitle: 'Tracking position in the background',
  notificationText: 'enabled',
  debug: false,
  interval: 10000,
  fastestInterval: 5000,
  activitiesInterval: 5000,
  stopOnTerminate: false,
  startOnBoot: false,
  startForeground: true,
  pauseLocationUpdates: false,
  stopOnStillActivity: false,
  saveBatteryOnBackground: false,

Context

I'm using this plugin to track user location while the app is in Background, everything works fine while i only close the application but keep the screen of the device active. As soon as is start using the screen lock hardware button the plugin sometimes receives an error, this leads to an application crash.

Expected Behavior

do not crash after entering lock screen

Actual Behavior

crashes after entering lock screen

Possible Fix

Steps to Reproduce

1. start Logging with this config
2. Use screen Lock hardware Button
3. after Resuming to app the crash occurs

Context

i need to get the geolocation always, ( screen lock, app paused, app foreground...)

Debug logs

11-09 12:28:31.764: E/ActivityThread(31819): Service com.marianhello.bgloc.LocationService has leaked IntentReceiver com.marianhello.bgloc.provider.ActivityRecognitionLocationProvider$1@f835c92 that was originally registered here. Are you missing a call to unregisterReceiver()?
11-09 12:28:31.764: E/ActivityThread(31819): android.app.IntentReceiverLeaked: Service com.marianhello.bgloc.LocationService has leaked IntentReceiver com.marianhello.bgloc.provider.ActivityRecognitionLocationProvider$1@f835c92 that was originally registered here. Are you missing a call to unregisterReceiver()?
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.LoadedApk$ReceiverDispatcher.(LoadedApk.java:1503)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:1231)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1637)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.ContextImpl.registerReceiver(ContextImpl.java:1610)
11-09 12:28:31.764: E/ActivityThread(31819): at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:622)
11-09 12:28:31.764: E/ActivityThread(31819): at com.marianhello.bgloc.LocationService.registerReceiver(LocationService.java:479)
11-09 12:28:31.764: E/ActivityThread(31819): at com.marianhello.bgloc.provider.AbstractLocationProvider.registerReceiver(AbstractLocationProvider.java:80)
11-09 12:28:31.764: E/ActivityThread(31819): at com.marianhello.bgloc.provider.ActivityRecognitionLocationProvider.onCreate(ActivityRecognitionLocationProvider.java:53)
11-09 12:28:31.764: E/ActivityThread(31819): at com.marianhello.bgloc.LocationService.onStartCommand(LocationService.java:261)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3995)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.ActivityThread.-wrap21(Unknown Source:0)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2021)
11-09 12:28:31.764: E/ActivityThread(31819): at android.os.Handler.dispatchMessage(Handler.java:109)
11-09 12:28:31.764: E/ActivityThread(31819): at android.os.Looper.loop(Looper.java:166)
11-09 12:28:31.764: E/ActivityThread(31819): at android.app.ActivityThread.main(ActivityThread.java:7383)
11-09 12:28:31.764: E/ActivityThread(31819): at java.lang.reflect.Method.invoke(Native Method)
11-09 12:28:31.764: E/ActivityThread(31819): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:469)
11-09 12:28:31.764: E/ActivityThread(31819): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:963)
11-09 12:28:32.042: E/AndroidRuntime(31819): FATAL EXCEPTION: main
11-09 12:28:32.042: E/AndroidRuntime(31819): Process: de.geogame.eurokey, PID: 31819
11-09 12:28:32.042: E/AndroidRuntime(31819): java.util.concurrent.RejectedExecutionException: Task com.marianhello.bgloc.LocationService$PostLocationTask$1@8c58233 rejected from java.util.concurrent.ThreadPoolExecutor@3629f0[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 2]
11-09 12:28:32.042: E/AndroidRuntime(31819): at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2078)
11-09 12:28:32.042: E/AndroidRuntime(31819): at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:843)
11-09 12:28:32.042: E/AndroidRuntime(31819): at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1389)
11-09 12:28:32.042: E/AndroidRuntime(31819): at java.util.concurrent.Executors$DelegatedExecutorService.execute(Executors.java:620)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.marianhello.bgloc.LocationService$PostLocationTask.add(LocationService.java:561)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.marianhello.bgloc.LocationService.onLocation(LocationService.java:387)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.marianhello.bgloc.provider.AbstractLocationProvider.handleLocation(AbstractLocationProvider.java:100)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.marianhello.bgloc.provider.ActivityRecognitionLocationProvider.onLocationChanged(ActivityRecognitionLocationProvider.java:98)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.google.android.gms.internal.zzcfj.zzu(Unknown Source:4)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.google.android.gms.common.api.internal.zzci.zzb(Unknown Source:8)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.google.android.gms.common.api.internal.zzcj.handleMessage(Unknown Source:14)
11-09 12:28:32.042: E/AndroidRuntime(31819): at android.os.Handler.dispatchMessage(Handler.java:109)
11-09 12:28:32.042: E/AndroidRuntime(31819): at android.os.Looper.loop(Looper.java:166)
11-09 12:28:32.042: E/AndroidRuntime(31819): at android.app.ActivityThread.main(ActivityThread.java:7383)
11-09 12:28:32.042: E/AndroidRuntime(31819): at java.lang.reflect.Method.invoke(Native Method)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:469)
11-09 12:28:32.042: E/AndroidRuntime(31819): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:963)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): FATAL EXCEPTION: mainjava.util.concurrent.RejectedExecutionException: Task com.marianhello.bgloc.LocationService$PostLocationTask$1@8c58233 rejected from java.util.concurrent.ThreadPoolExecutor@3629f0[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 2]
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2078)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:843)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1389)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at java.util.concurrent.Executors$DelegatedExecutorService.execute(Executors.java:620)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.marianhello.bgloc.LocationService$PostLocationTask.add(LocationService.java:561)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.marianhello.bgloc.LocationService.onLocation(LocationService.java:387)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.marianhello.bgloc.provider.AbstractLocationProvider.handleLocation(AbstractLocationProvider.java:100)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.marianhello.bgloc.provider.ActivityRecognitionLocationProvider.onLocationChanged(ActivityRecognitionLocationProvider.java:98)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.google.android.gms.internal.zzcfj.zzu(Unknown Source:4)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.google.android.gms.common.api.internal.zzci.zzb(Unknown Source:8)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.google.android.gms.common.api.internal.zzcj.handleMessage(Unknown Source:14)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at android.os.Handler.dispatchMessage(Handler.java:109)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at android.os.Looper.loop(Looper.java:166)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at android.app.ActivityThread.main(ActivityThread.java:7383)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at java.lang.reflect.Method.invoke(Native Method)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:469)
11-09 12:28:32.043: E/com.marianhello.logging.UncaughtExceptionLogger(31819): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:963)
11-09 12:28:33.329: E/MemoryLeakMonitorManager(32457): MemoryLeakMonitor.jar is not exist!
11-09 12:28:33.330: E/Minikin(32457): Could not get cmap table size!

[mauron85]

What device are you testing on? Can you provide some src how are you registering 'on' event listeners, starting, configuring plugin...

[mauron85]

Also try to reproduce on latest alpha. Some additional guards were added after alpha.43

[SeScherer]

testing on a Huawei p20 pro, configuration(as posted above) using @latest (3.0.0-alpha.47):

            locationProvider: 1, 
            desiredAccuracy: 0, 
            stationaryRadius: 25,
            distanceFilter: 20,
            notificationTitle: 'Tracking position in the background',
            notificationText: 'enabled',
            debug: false, 
            interval: 10000,
            fastestInterval: 5000,
            activitiesInterval: 5000,
            stopOnTerminate: false, 
            startOnBoot: false, 
            startForeground: true,
            pauseLocationUpdates: false,
            stopOnStillActivity: false,
            saveBatteryOnBackground: false,

register event listeners (typescript):
BackgroundGeolocation.on('location', (location: IBackgroundGeolocationEvent): void => {
if (this.shouldUseBackgroundGeolocation) {
Logger.debugOut('BackgroundGeolocation: location event raised');
backgroundGeolocationOptions.events.location(location);
}
});

The crash only occures cause i wanted to turn on the Background geolocation when entering Background, and turn it of when leaving background, if i dont do that the error doesnt occure.

Current ErrorLog when tunring on and off:
11-12 07:58:01.711: D/DeviceMonitor(1900): GPS request stop:de.geogame.eurokey pid:25856 interval(s): -1 reqId:db1b306
11-12 07:58:02.006: D/WorkSource(2137): Insert in WorkSource{} @ 0 uid 10189 name de.geogame.eurokey
11-12 07:58:02.012: W/ProcBatteryStats(1081): timer is not running , not stop, name: de.geogame.eurokey, uid: 10189, tag: NlpWakeLock
11-12 07:58:02.028: E/AndroidRuntime(25856): Process: de.geogame.eurokey, PID: 25856
11-12 07:58:02.047: W/ActivityManager(1081): Force finishing activity de.geogame.eurokey/.MainActivity
11-12 07:58:02.285: W/InputDispatcher(1081): channel '4aca806 de.geogame.eurokey/de.geogame.eurokey.MainActivity (server)' ~ Consumer closed input channel or an error occurred. events=0x9
11-12 07:58:02.285: E/InputDispatcher(1081): channel '4aca806 de.geogame.eurokey/de.geogame.eurokey.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
11-12 07:58:02.306: I/WindowManager(1081): WIN DEATH: Window{4aca806 u0 de.geogame.eurokey/de.geogame.eurokey.MainActivity}
11-12 07:58:02.307: V/WindowManager(1081): removeIfPossible: Window{4aca806 u0 de.geogame.eurokey/de.geogame.eurokey.MainActivity} callers=com.android.server.wm.WindowState.-wrap1:0 com.android.server.wm.WindowState$DeathRecipient.binderDied:2601 android.os.BinderProxy.sendDeathNotice:856
11-12 07:58:02.307: W/InputDispatcher(1081): Attempted to unregister already unregistered input channel '4aca806 de.geogame.eurokey/de.geogame.eurokey.MainActivity (server)'
11-12 07:58:02.307: V/WindowManager(1081): postWindowRemoveCleanupLocked: Window{4aca806 u0 de.geogame.eurokey/de.geogame.eurokey.MainActivity}
11-12 07:58:02.307: V/WindowManager(1081): Removing Window{4aca806 u0 de.geogame.eurokey/de.geogame.eurokey.MainActivity} from AppWindowToken{5724bff token=Token{b99b71e ActivityRecord{3e36f59 u0 de.geogame.eurokey/.MainActivity t4401}}}
11-12 07:58:02.311: I/ActivityManager(1081): Process de.geogame.eurokey (pid 25856) has died: prcp FGS
11-12 07:58:02.312: D/ActivityManager(1081): cleanUpApplicationRecord app: ProcessRecord{63ded4f 25856:de.geogame.eurokey/u0a189}, app.bad: false, restarting: false, allowRestart: true

[mauron85]

The crash only occures cause i wanted to turn on the Background geolocation when entering Background, and turn it of when leaving background, if i dont do that the error doesnt occure.

Can you please post exact code, how you do that. I think I know what's going on, but need to be sure.

[SeScherer]

i was doing it this way :
BackgroundGeolocation.on('foreground', (): void => {
BackgroundGeolocation.stop();
});
BackgroundGeolocation.on('background', (): void => {
BackgroundGeolocation.start();
});

[zymr-viveksharma]

Facing the same issue, On moving to the map from my application the application is getting crash. Also, not showing any errors.

[mauron85]

Fixed in 0.5.0-alpha.49

[mauron85]

But before you start service in background you need to obtain user permission once or app will crash.
This is probably related to nishkarsh/android-permissions#12.
After that issue will be closed, plugin will display permission notification that user can confirm without app crashing.

[mauron85]

FYI 0.5.0-alpha.50 have also fixed above mentioned crash!