Cwa-app-android: Setting prioritized background activity doesn't work after the first time (needs a reboot)

[tomjschwanke]

Avoid duplicates

• [x] Bug is not mentioned in the FAQ
• [x] Bug is specific for Android only, for general issues / questions that apply to iOS and Android please raise them in the documentation repository
• [x] Bug is not already reported in another issue

Describe the bug

After disabling battery optimizations via the app but then enabling it again, trying to disable it again via the app doesn't work anymore. The app thinks optimizations are disabled when they're not (checked in system settings). Disabling and then enabling optimizations via system settings makes the app aware again of the disabled optimizaions. It still can't enable them again.
Edit: it seems that after a reboot the optimizations are correctly disabled

Expected behaviour

Disabling battery optimizations should work every time. Without a reboot.

Steps to reproduce the issue

Go into Corona-Warn-App settings and "prioritized background" activity. Enable it and click "Ok" in the promt to disable battery optimizations. Now click the blue button underneath which guides you into system settings. Enable battery optimizations again. Go back to the app and try to enable it again. Select Ok on the prompt again. Now go back into system settings and see that the app is still optimized.
Reboot to have the list show the correct status again

Technical details

• Mobile device 1: OnePlus 7 Pro
  Android version: Android 10 (OxygenOS 10)
  App Version: 1.1.1 (PlayStore)

• Mobile device 2: Samsung Galaxy S7
  Android version: Android 8 (Samsung Experience 9.0)
  App Version: 1.2.0 (dev branch)

• Mobile device 3: Google Pixel 3a (Emulator)
  Android version: Android 11 (Emulator)
  App Version: 1.2.0 (dev branch)

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Internal Tracking Id: EXPOSUREAPP-1853

[tomjschwanke]

This may not be fixable through this app if it's an Android problem.

[SebastianWolf-SAP]

Thanks for the report. We will definitely add it to the FAQ and also check with the product team to get this hint in the app.

Mit freundlichen Grüßen/Best regards,
SW
Corona Warn-App Open Source Team

[GPclips]

This issue has been completed (fixed version 1.2) and will be closed now.

[daimpi]

@GPclips

This issue has been completed (fixed version 1.2) and will be closed now.

Are you sure about this? I can still reproduce this issue on CWA 1.3.1 with my Samsung Galaxy S8 (Android 9).

[GPclips]

Hello @daimpi ,

I reached out to the dev team and until then, I will reopen the issue.
thanks for helping out.

Thanks,
LMM

Corona-Warn-App Open Source Team

[dsarkar]

Hi @daimpi, @tomjschwanke. This issue should have been fixed with EXPOSUREAPP-3094 CWA 1.6.1. Is problem still persisting? Thanks for the feedback. Best, DS

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Corona-Warn-App Open Source Team

[tomjschwanke]

Yep, the setting takes effect immediately. I'm not sure how user friendly that UX is (honestly that's caused by Android though), so maybe you could implement a little tutorial on how to do this.
Edit: Oh I just noticed it might vary by manufacturer, OnePlus has a different UI than Samsung, ugh

[daimpi]

@dsarkar yap I can also confirm on my Samsung Galaxy S8 (Android 9) that the status of Prioritized Background Activity (PBA) is now shown correctly.

But I also concur with @tomjschwanke's statement that the process to enable PBA is a bit clumsy with the new version: There is no simple slider/button to activate PBA anymore, instead one gets thrown into the "optimize battery usage" menu of the device where you manually have to find CWA (which is only possible after changing the filter from "apps not optimized" to "all") and disable "battery optimization" for CWA.

But that's a somewhat different problem which probably deserves it's own issue (@tomjschwanke would you like to open a new issue for this or should I? 🙂)

[MikeMcC399]

@daimpi

But I also concur with @tomjschwanke's statement that the process to enable PBA is a bit clumsy with the new version: There is no simple slider/button to activate PBA anymore, instead one gets thrown into the "optimize battery usage" menu of the device where you manually have to find CWA (which is only possible after changing the filter from "apps not optimized" to "all") and disable "battery optimization" for CWA.

But that's a somewhat different problem which probably deserves it's own issue (@tomjschwanke would you like to open a new issue for this or should I? 🙂)

I suggest you upvote (and comment on) https://github.com/corona-warn-app/cwa-app-android/issues/1606. I don't think a new issue is necessary.

[daimpi]

@MikeMcC399 thanks for the pointer, that's exactly what I was looking for 👍