Android Question Unable to activate my app in the background


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Licensed User
Longtime User
What I want to achieve:
A service checks periodically if ActivityB is paused; if so, activate it, bringing it to the foreground by using CallSubDelayed.

What I've got so far:
1. When the app is active, everything works as expected.
2. When the app is in the background, for example after Home key is tapped, the CallSubDelayed will be queued, and ActivityB doesn't become active until I first bring the app to the foreground manually.

Service code in svcActivateActivityB:
Sub Service_Create
End Sub

Sub Service_Start (StartingIntent As Intent)
    StartServiceAt(Me, DateTime.Now+ 60000, True) 'start the service every 1 minute, even while the device is sleeping
    If IsPaused(ActivityB) And count>0 Then
        CallSubDelayed(ActivityB, "Activate_Me")
        Log("ActivityB is active")
    End If
    Service.StopAutomaticForeground 'Call this when the background task completes (if there is one)
    count = count +1
End Sub

Could someone kindly point out what I did wrong, please?

Last edited:

Ivica Golubovic

Active Member
Licensed User
You must grant "draw over other app" to Start activity over other activity from background. Also, check that the battery optimization process does not shut down the service from the background.
Upvote 1