Android Question [Solved] Foreground service and notifications

Roger C

Active Member
Licensed User
Hi all,

I have services that needs to be running all the time. Or rather wake up with StartServiceAt.

I used this code at first...
B4X:
Service.AutomaticForegroundMode = Service.AUTOMATIC_FOREGROUND_ALWAYS
The problem is that it gives a notification sound/vibration every time I start the app.

So I tried this...
B4X:
Service.AutomaticForegroundMode = Service.AUTOMATIC_FOREGROUND_NEVER 
lock.PartialLock

' And in Service_Destroy:
lock.ReleasePartialLock
CancelScheduledService(Me)
This works. No sound or vibration at startup.
But is this a correct way to do it?
Will this service never be killed?



I know the forgroundservice in the first example must give a notificaton since it's Foreground and I don't mind the icon showing. I will use notifications myself in the app BUT I don't want the phone to vibrate and give a sound every time the app starts.
 

Roger C

Active Member
Licensed User
Thanks Erel!
Great support.

Edited:
***
But it still makes a Bing and vibrates when I start the app...
Isn't it possible to get rid of that?
***

So this code should work and the service will 'never' die? And it should be started at every 30 minutes?
With a visible notification in status bar?
B4X:
Sub Service_Create
    Service.AutomaticForegroundMode = Service.AUTOMATIC_FOREGROUND_NEVER
    lock.PartialLock
End Sub

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

Sub Service_Destroy
    lock.ReleasePartialLock
    Service.StopAutomaticForeground
    CancelScheduledService(Me)
End Sub

Sub CreateNotification (Body As String) As Notification
    Dim notification As Notification
    notification.Initialize2(notification.IMPORTANCE_LOW)
    notification.Icon = "TrainClock36x36"
    notification.SetInfo("Tracking location", Body, Main)
    Return notification
End Sub
 
Last edited:

Erel

Administrator
Staff member
Licensed User
So this code should work and the service will 'never' die? And it should be started at every 30 minutes?
Each thread should focus on a one specific question.

notification.Initialize2(notification.IMPORTANCE_LOW)
Notification with low importance shouldn't make any sound by default. Try to set Notification.Sound = False and Notification.Vibrate = False.
 

LucaMs

Expert
Licensed User
But it still makes a Bing and vibrates when I start the app...
Isn't it possible to get rid of that?
B4X:
Sub Service_Start (StartingIntent As Intent)
   Service.StartForeground(nid, CreateNotification("..."))
I tested that you can write:
B4X:
Sub Service_Start (StartingIntent As Intent)
   Service.StartForeground(0, Null)
to avoid the first unwanted notification.

(however, I found "many" other problems 😄 :()
 
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