Android Question start activity from service not work in all device

syerif · May 23, 2019

Hi i create some project with start activity from service, in my device it work as expected (activity transparent is show panel)but not work for another device (Activity always on background).

B4X:

Sub Service_Start (StartingIntent As Intent)
    'nb6.h
    'If StartingIntent.IsInitialized Then fm.HandleIntent(StartingIntent)
    'If StartingIntent.IsInitialized Then
    StartServiceAt("", DateTime.Now + 5 * DateTime.TicksPerSecond, True) 'schedule the next task to run in 30 seconds.
    Sleep(0)
    CheckNotif
    'End If
    Service.StopAutomaticForeground 'Call this when the background task completes (if there is one)
End Sub
Sub CheckNotif
'POST API
'load JSON return format to string
ReadJSON
End Sub
Sub ReadJSON
        If Sensor1=0 Or Sensor2=0 Or Sensor3=0 Or Sensor3=0 Or Sensor4=0 Or Sensor5=0 Or Sensor6=0 Or Sensor7=0 Or Sensor8=0 Or Sensor9=0 Or Sensor10=0 Or Sensor11=0 Or Sensor11=0 Then
           
            StartActivity(Notif)
        Else if Sensor1>0 Or Sensor2>0 Or Sensor3>0 Or Sensor3=0 Or Sensor4=0 Or Sensor5=0 Or Sensor6=0 Or Sensor7=0 Or Sensor8=0 Or Sensor9=0 Or Sensor10=0 Or Sensor11=0 Or Sensor11=0 Then
            CallSub(Notif,"Button1_Click")
        End If

    Next
End Sub

Please any advice...

DonManfred · May 23, 2019

syerif said:
StartServiceAt("", DateTime.Now + 5 * DateTime.TicksPerSecond, True) 'schedule the next task to run in 30 seconds.

Android does not allow you to restart the service in this REALLY REALLY REALLY short intervals.

You should change it to at least 15 or 30 MINUTES.

Consider using a foreground service
Example: https://www.b4x.com/android/forum/threads/background-location-tracking.99873/

syerif · May 23, 2019

DonManfred said:
Android does not allow you to restart the service in this REALLY REALLY REALLY short intervals.

You should change it to at least 15 or 30 MINUTES.

Consider using a foreground service
Example: https://www.b4x.com/android/forum/threads/background-location-tracking.99873/

Ok, it will show my activity correctly to? Because my problem is activity work in background not start correctly in some real device, but it work at my device (in 5,15 or 30 minutes)

MarkusR · May 23, 2019

i believe this is better than callsub

B4X:

CallSubDelayed

https://www.b4x.com/android/forum/t...etween-activities-and-services.18691/#content

this way looks odd

B4X:

StartServiceAt("",

syerif · May 23, 2019

MarkusR said:
i believe this is better than callsub

B4X:

CallSubDelayed

https://www.b4x.com/android/forum/t...etween-activities-and-services.18691/#content

this way looks odd

B4X:

StartServiceAt("",

For callsub routine it is work perfect in mycode. callsub in my code for close activity where was start, it triger by off fire sensor. On fire sensor triger show activity. And my problem my activity run in background in some real device but in my real device as debuger and install app it work perfect.

Erel · May 24, 2019

Tip: remove all the sensor variables and use an array instead.

Do you have access to the problematic device? Does it always fail to start the activity? Are you sure that StartActivity is called (add Log("starting")) ?

MarkusR · May 24, 2019

is the type of Sensor1 is float? then its not good to compare with =0
in the worst case write a log into file (enabled by user) and let the user share this data via mail.

syerif · May 24, 2019

Th

Erel said:
Tip: remove all the sensor variables and use an array instead.

Do you have access to the problematic device? Does it always fail to start the activity? Are you sure that StartActivity is called (add Log("starting")) ?

Thanks erel,
it work when main activity is loaded, but it does not when it minimize or clear from list.

syerif · May 24, 2019

MarkusR said:
is the type of Sensor1 is float? then its not good to compare with =0
in the worst case write a log into file (enabled by user) and let the user share this data via mail.

Sensor1 data type is integer like database field data type

Erel · May 25, 2019

syerif said:
it work when main activity is loaded, but it does not when it minimize or clear from list.

This is expected as you don't have a foreground service.

Example: https://www.b4x.com/android/forum/threads/99873/#content

MarkusR · May 25, 2019

i am more confused about this part, why should the activity come in front here?

B4X:

        Else if Sensor1>0 Or Sensor2>0 Or Sensor3>0 Or Sensor3=0 Or Sensor4=0 Or Sensor5=0 Or Sensor6=0 Or Sensor7=0 Or Sensor8=0 Or Sensor9=0 Or Sensor10=0 Or Sensor11=0 Or Sensor11=0 Then
            CallSub(Notif,"Button1_Click")
        End If

syerif · May 26, 2019

MarkusR said:
i am more confused about this part, why should the activity come in front here?

B4X:

Else if Sensor1>0 Or Sensor2>0 Or Sensor3>0 Or Sensor3=0 Or Sensor4=0 Or Sensor5=0 Or Sensor6=0 Or Sensor7=0 Or Sensor8=0 Or Sensor9=0 Or Sensor10=0 Or Sensor11=0 Or Sensor11=0 Then CallSub(Notif,"Button1_Click") End If

This part for close activity where opened, code not correctly at all just for test i am use 2 sensor.

Android Question start activity from service not work in all device

syerif

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DonManfred

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syerif

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syerif

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