Android Question Advice about Services

L

lentunti

Member
Licensed User
Longtime User
Hi All,

I have looked at the forums regarding services but I am a little confused, especially with the changes with Android 8.

What I am trying to accomplish to create a service that runs in the background (and has to start on boot) and scans for BLE beacons every 5 minutes. I am happy with the beacon part and have written the software using a sticky service and a timer to scan the beacons (running on Android 4 to 6).

The problem is the service gets destroyed and restarts 10 to 20 minutes later.

Could someone please tell me what type of service I should use please?

Thanks for any help.

Len
 
Sort by date Sort by votes

MarkusR

Well-Known Member
Licensed User
Longtime User
i used it like this for a permament mqtt connection to my alarm system raspberry pi server.
and because of power consume i can start/stop it at needing.

the starter service i set to #StartAtBoot: False
and if i start the app i started my service too or it would only start at boot.
Starter Service
B4X: 
Sub Service_Start(StartingIntent As Intent)
            
    StartService(Connection)
    
End Sub

Connection Service
B4X: 
#Region  Service Attributes
   #StartAtBoot: True
  
#End Region

Sub Process_Globals
   Dim PhoneWakeState1 As PhoneWakeState
End Sub

Sub Service_Create
  
End Sub

Sub Service_Start(StartingIntent As Intent)
       
    'Service.StopAutomaticForeground 'Call this when the background task completes (if there is one)
    Dim n As Notification
    n.Initialize
    n.Icon="icon"
    n.Sound=False
    n.Light = False
    n.Vibrate = False
    n.SetInfo("Alarm","Listening for a Alarm Message",Main)
    Service.StartForeground(1,n)

    PhoneWakeState1.PartialLock
   
End Sub

Sub Service_TaskRemoved

    PhoneWakeState1.ReleasePartialLock

End Sub

Sub Service_Destroy

    PhoneWakeState1.ReleasePartialLock

End Sub
 
Upvote 0

walterf25

Expert
Licensed User
Longtime User
I have been struggling with the same issues for some time now, what i have found out is that for a service the minimum starting interval is 15 minutes, so if you're trying to re-start a service every minutes it won't work, the only way from what I understand to keep a service running without the OS destroying the service is by running your service in foreground mode which requires a notification icon to be displayed.

Kind of annoying if you ask me.

Walter
 
Upvote 0

MarkusR

Well-Known Member
Licensed User
Longtime User
the service is by running your service in foreground mode which requires a notification icon to be displayed.
Click to expand...
at least u see its running and it also open the app activity if u click this notification.
the whole android system is a worst thing for developers ... it consists of endless problems for us.
i still waiting for a cheap linux phone that i can use the same app everywhere.
 
Upvote 0

walterf25

Expert
Licensed User
Longtime User
That is true, but believe me when I tell you that if you are building an app where you require to a background service to run and if the only way is by displaying a notification icon, customers will hate it, believe me i've dealt with that before.

Walter
 
Upvote 0

MarkusR

Well-Known Member
Licensed User
Longtime User
myself did not like if apps using hidden background services. i like to start the app and it runs and if me end this it stops. same as desktop exe.
the annoying thing is that people try to drag out this notification label and it can not removed.
 
Upvote 0
You must log in or register to reply here.

Similar Threads

  • Question
Android Question [SOLVED] - Android 10 - Background GPS/Ble scans stop getting data after 1 hr
2
Replies
21
Views
15K
Jmu5667
P
  • Question
Android Question Background Service
Replies
5
Views
1K
KMatle
N
  • Question
Android Question Service in Android
Replies
12
Views
1K
nicieri
N
  • Question
Android Question [Things] BeaconParser stop scanning for beacon after 30-40mins in Raspberry Pi (Android Things)
Replies
2
Views
2K
Hypnos
S
  • Question
Android Question Service Stops Posting GPS Data
Replies
12
Views
2K
Jmu5667
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…