He inst talking about this one, there is one more kind of feature to disable the battery optimization.
Ok but I think it's not required when using my approach. Also, this failed for me (on my Galaxy Note8) when trying to keep a timer alive.
For me, this had to be done using the System settings. When I set it manually to unrestricted
the apk works
Thank you.
Will try this later (not sure I use the Sensor Detector ' the Sensor Detector of steps that some devices carry.'
I'll continue to experiment 
Reset feature not working
my app force close when start extension
Does the example app work for you?
To help the developer of the extension please provide the following information
-
the Android device and Android version you are using for your tests
-
a logcat output
Thank you
Taifun