Android Question Continous background GPS tracking

[Mike1970]

Hi everyone, i'm coding an app for quite a whille (before the update), and i quitted beacuse the SO kill my foreground process while the app is in background, so after an random period of time it stop working.
I wish to know if there is a way with the new update to prevent the OS to kill my process/service

(I already tried the Erel's example of gps tracking, my phone kill even that after a while.
My phone: Meizu m5c)

 

[Brandsum]

https://www.b4x.com/android/forum/threads/99873

 

[Mike1970]

https://www.b4x.com/android/forum/threads/99873

(I already tried the Erel's example of gps tracking, my phone kill even that after a while.

 

[Brandsum]

What is the android version?

 

[Mike1970]

What is the android version?

Android 6.0

 

[Brandsum]

Did you get any log when the service stop working? Is there any other app in your device that runs in the background without any issue?

 

[Mike1970]

Did you get any log when the service stop working? Is there any other app in your device that runs in the background without any issue?

No, any log, the OS kills all the services silently.

For example in settings>Apps>Now i can see what apps/services are running and the time elapsed from opening.

My app there isn't because it was killed after 2/3 hours, but the other apps are still running after 6+ hours at this point

 

[Mike1970]

it is VERY VERY ANNOYING, i can't do what i want to do, i have to verify if a person is in a determinate place until the users decide to close the app himself.
But if the OS kill the app when it want, so i can't develop my app correctly....

 

[walterf25]

it is VERY VERY ANNOYING, i can't do what i want to do, i have to verify if a person is in a determinate place until the users decide to close the app himself.
But if the OS kill the app when it want, so i can't develop my app correctly....

You can have your service running in the background but you need to create a foreground service and a notification will show the whole time until you or the user decides to kill the device.
Do a search for foreground services.

Walter

 

[Erel]

You can have your service running in the background but you need to create a foreground service and a notification will show the whole time until you or the user decides to kill the device.
Do a search for foreground services.

This is implemented in the background location tracking example linked above. Not all devices let foreground services to be kept alive for a long time.

Trying adding geofence features: https://www.b4x.com/android/forum/threads/84767/#content

 

[DonManfred]

OffTopic

show the whole time until you or the user decides to kill the device.

THAT is not a good idea to kill the DEVICE instead of the App.

 

[dgoss]

This works for me, i run an app that uses Gps for up to 15Hrs a day 6 days a week with no problems.
This is all in a Service

This in Service Create

    Service.AutomaticForegroundMode = Service.AUTOMATIC_FOREGROUND_NEVER 'we are handling it ourselves

This in Service

Sub Service_Start (StartingIntent As Intent)
    Service.StartForeground(nid, CreateNotification("..."))
    StartServiceAt(Me, DateTime.Now + 30 * DateTime.TicksPerMinute, False)
End Sub

Sub CreateNotification (Body As String) As Notification
   Dim notification As Notification
   notification.Initialize2(notification.IMPORTANCE_HIGH)
   notification.Icon = "icon"
   notification.SetInfo("App Title", Body, Main)
   Return notification
End Sub

 

[walterf25]

OffTopic

THAT is not a good idea to kill the DEVICE instead of the App.

I've already had one too many beers.

I meant kill the service

Walter

 

[Mike1970]

You can have your service running in the background but you need to create a foreground service and a notification will show the whole time until you or the user decides to kill the device.
Do a search for foreground services.

Walter

It's alrady a foreground service, that part is taken from @Erel example.
It's that the problem...i don't know what to do anymore

 

[Mike1970]

This works for me, i run an app that uses Gps for up to 15Hrs a day 6 days a week with no problems.
This is all in a Service

Yes, this is the code implemented in Erel's example, right?

The only difference with yours is that I set

notification.IMPORTANCE_LOW

instead of

notification.IMPORTANCE_HIGH

And that i restart the service every 10 minutes instead of 30

 

[Mike1970]

This works for me, i run an app that uses Gps for up to 15Hrs a day 6 days a week with no problems.

What smartphone have you tried?

 

[Mike1970]

Trying adding geofence features

Yeah, i discovered that thing yesterday, but my phone killed also that one, but now i realized that maybe i have to start the service as foreground service right? Because the original code doesn't.

 

[udg]

And that i restart the service every 10 minutes instead of 30

This could be part of the problem. You're not expected to restart a service in such a short time.

 

[Mike1970]

This could be part of the problem. You're not expected to restart a service in such a short time.

mm ok, i try to increase the time

 

[Mike1970]

This could be part of the problem. You're not expected to restart a service in such a short time.

I tried with 15minutes, but it was killed anyway.
Now i'm trying with an interval of 30 minutes just in case (but the purpose of the app it's count how many time a person stay in a determinate place, if the precision is +-30min it is very imprecise)