Exits unexpectedly when app gets terminated on android

Your Environment

• Plugin version: 2.3.6
• Platform: Android (haven’t tried on iOS yet)
• OS version: 8.0.0
• Device manufacturer and model: Samsung Galaxy S9+
• Cordova version (cordova -v): 8.0.0
• Cordova platform version (cordova platform ls):

Installed platforms:
  android 7.1.1
  ios 4.5.5
Available platforms: 
  browser ~5.0.1
  osx ~4.0.1
  windows ~5.0.0
  www ^3.12.0

• Plugin configuration options:

    const config: BackgroundGeolocationConfig = {
      desiredAccuracy: 10,
      stationaryRadius: 20,
      distanceFilter: 30,
      debug: true,
      stopOnTerminate: true,
    };

• Link to your project: (private company project)

Context

I’m new to mobile development and had a requirement for background geolocation. I copy-pasted the setup as described here:

Expected Behavior

It is working as expected. I’m getting location updates every now and then but with an additional log error:

But still, i ignored this since i’m getting location updates. But having set stopOnTerminate to true, I was expecting that i can terminate the app gracefully.

Actual Behavior

Upon closing the app, after about 2-3 seconds, I get an alert message saying that my app has stopped.

Possible Fix

Steps to Reproduce

1. Open the app
2. Wait for a few seconds
3. Close the app by swiping it away

Context

I was hoping to have the app terminate without any errors.

Debug logs

2018-10-01 08:42:18.263 4416-4416/? E/audit: type=1400 audit(1538354538.258:1135): avc:  denied  { read } for  pid=16651 comm="ne.fieldmagicv3" name="vmstat" dev="proc" ino=4026532577 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:proc:s0 tclass=file permissive=0 SEPF_SM-G965F_8.0.0_0014 audit_filtered
2018-10-01 08:42:18.263 4416-4416/? E/audit: type=1300 audit(1538354538.258:1135): arch=c00000b7 syscall=56 success=no exit=-13 a0=ffffff9c a1=7fd13d0059 a2=80000 a3=0 items=0 ppid=4950 pid=16651 auid=4294967295 uid=10309 gid=10309 euid=10309 suid=10309 fsuid=10309 egid=10309 sgid=10309 fsgid=10309 tty=(none) ses=4294967295 comm="ne.fieldmagicv3" exe="/system/bin/app_process64" subj=u:r:untrusted_app:s0:c512,c768 key=(null)
2018-10-01 08:42:18.263 4416-4416/? E/audit: type=1327 audit(1538354538.258:1135): proctitle="com.crmonline.fieldmagicv3"
2018-10-01 08:42:21.240 16651-16651/com.crmonline.fieldmagicv3 E/ViewRootImpl: sendUserActionEvent() returned.
2018-10-01 08:42:21.573 16651-16651/com.crmonline.fieldmagicv3 E/ViewRootImpl: sendUserActionEvent() returned.
2018-10-01 08:42:22.206 4820-4839/? E/NotificationService: No Channel found for pkg=com.crmonline.fieldmagicv3, channelId=null, id=1, tag=null, opPkg=com.crmonline.fieldmagicv3, callingUid=10309, userId=0, incomingUserId=0, notificationUid=10309, notification=Notification(channel=null pri=0 contentView=null vibrate=null sound=null defaults=0x0 flags=0x62 color=0x00000000 number=0 vis=PRIVATE semFlags=0x0 semPriority=0 semMissedCount=0)
2018-10-01 08:42:22.251 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request d35603 passive interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:22.272 4820-6847/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:22.296 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request d35603 gps interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:22.301 4820-6472/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:22.305 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request d35603 network interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:22.308 4820-5461/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:42.489 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request a3d0ca fused interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:42.496 4820-5461/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:42.532 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location remove a3d0ca from com.crmonline.fieldmagicv3
2018-10-01 08:42:42.633 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location remove d35603 from com.crmonline.fieldmagicv3
2018-10-01 08:42:42.639 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request 8530f6 passive interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:42.644 4820-6472/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:42.644 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request 8530f6 gps interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:42.646 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request 8530f6 network interval=0 from com.crmonline.fieldmagicv3
2018-10-01 08:42:42.652 4820-6472/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:42.654 4820-6472/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:42:44.386 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location remove 8530f6 from com.crmonline.fieldmagicv3
2018-10-01 08:42:44.397 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location request db442d7 network interval=10000 from com.crmonline.fieldmagicv3
2018-10-01 08:42:44.399 4820-6472/? E/PermissionMonitor: Calling app is not pre-installed on system. Ignore its notification. pkgName: com.crmonline.fieldmagicv3, UserId: 0
2018-10-01 08:43:52.108 4820-4839/? E/NotificationService: No Channel found for pkg=com.crmonline.fieldmagicv3, channelId=null, id=-574543954, tag=null, opPkg=com.crmonline.fieldmagicv3, callingUid=10309, userId=0, incomingUserId=0, notificationUid=10309, notification=Notification(channel=null pri=-2 contentView=null vibrate=null sound=null defaults=0x0 flags=0x42 color=0x00000000 number=0 vis=PRIVATE semFlags=0x0 semPriority=0 semMissedCount=0)
2018-10-01 08:43:53.980 5556-5598/? E/RequestManager_FLP: [LocationManagerService] Location remove db442d7 from com.crmonline.fieldmagicv3
2018-10-01 08:43:55.064 4820-4839/? E/NotificationService: No Channel found for pkg=com.crmonline.fieldmagicv3, channelId=null, id=1, tag=null, opPkg=com.crmonline.fieldmagicv3, callingUid=10309, userId=0, incomingUserId=0, notificationUid=10309, notification=Notification(channel=null pri=0 contentView=null vibrate=null sound=null defaults=0x0 flags=0x62 color=0x00000000 number=0 vis=PRIVATE semFlags=0x0 semPriority=0 semMissedCount=0)
2018-10-01 08:43:55.136 17669-17669/com.crmonline.fieldmagicv3 E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.crmonline.fieldmagicv3, PID: 17669
    java.lang.RuntimeException: Unable to start service com.marianhello.bgloc.LocationService@8110c0b with Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.crmonline.fieldmagicv3/.MainActivity (has extras) }: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Boolean com.marianhello.bgloc.Config.getStopOnTerminate()' on a null object reference
        at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3694)
        at android.app.ActivityThread.-wrap21(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1801)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6938)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Boolean com.marianhello.bgloc.Config.getStopOnTerminate()' on a null object reference
        at com.marianhello.bgloc.LocationService.onTaskRemoved(LocationService.java:201)
        at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3679)
        at android.app.ActivityThread.-wrap21(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1801) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6938) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374) 

Based on the logs, it was trying to restart background-geolocation but was unable since the app has been terminated already.

[mauron85]

Well, all I can say is that I don’t expect any breaking changes till the final 3.0 release.

[stale[bot]]

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