Cwa-app-ios: CWA does not stop camera session when leaving the Scan screen

[trispo]

Describe the bug

After scanning my QR code and leaving the scan screen, I noticed, that the camera indicator on iOS 14 is still green which means, the app does not stop the camera session correctly.

Expected behaviour

The camera session should be stopped after leaving the scan screen and the green dot should disappear.

Steps to reproduce the issue

1. Go to 'Informieren & helfen'
2. Tap on 'Weiter'
3. Tap on 'Dokument mit QR-Code'
4. Tap on 'Erlauben'
5. See green dot indicating that a camera session is started
6. Try to scan a QR code. (Mine says "Befund wurde nicht gefunden")
7. Leave the screen by tapping 'Abbrechen'
8. See the green dot is still present

Technical details

• iOS Version: 14.2 beta 4
• Device: iPhone XS

Possible Fix

Just stop the camera session.

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Internal Tracking ID: EXPOSUREAPP-3572

[dsarkar]

Dear @trispo,

Thanks for your contribution.
Can you confirm that you are using CWA version 1.5.3?
Actually, I can reproduce your issue in version 1.5.3, and it seems that only closing and re-opening the CWA closes the camera session. I add a screenshot for documentation purposes. We will let you know here when we have opened an internal tracking ticket for the developers.

Best wishes,
DS

Corona-Warn-App Open Source Team

[trispo]

Yes, I confirm.

[Ein-Tim]

Interesting, I can't reproduce on my iPhone XR with iOS 14.1 and newest CWA version and also can't reproduce on iPhone 6s with iOS 14.2 Public Beta 4

[trispo]

Just updated to the iOS 14.2 GM. The issue still exists.

[thomasaugsten]

Not reproducible from our side. We will try to fix this soon.

[Ein-Tim]

@thomasaugsten But @dsarkar stated above that he can reproduce this...

[trispo]

Would it help if I provide a video how to reproduce this?

[thomasaugsten]

Hi this was a mistake by me I did a wrong path. Thanks for reporting this we will fix this soon.

[dsarkar]

Dear @trispo, dear community,

Thanks again for your contributions.

We have created a ticket for the bug (Internal Tracking ID: EXPOSUREAPP-3550) in the internal Jira system. The developers will look into this issue now. Any further developments will be communicated here in this Github issue.

Best wishes,
DS

Corona-Warn-App Open Source Team

[KaiTeuber]

This issue should be solved, just checked the latest version.

[dsarkar]

Dear @trispo, @KaiTeuber, thanks for contributing. We will close this issue in that case.

Best wishes,
DS

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Corona-Warn-App Open Source Team