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iOS 13.5 Background Task not always triggered consistently #163

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stmitt opened this issue Jun 24, 2020 · 5 comments
Open

iOS 13.5 Background Task not always triggered consistently #163

stmitt opened this issue Jun 24, 2020 · 5 comments
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@stmitt
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stmitt commented Jun 24, 2020

During development we observed that our background processing task is on some devices not getting called as often as expected.

If an exposure check was not made for 48h we display a local notification to the user that the app needs to be opened to guarantee that the checks are made.

We are in contact with apple to resolve this issue with the next iOS Release.

@stmitt stmitt changed the title 13.5 Background not always triggered consistency 13.5 Background not always triggered consistently Jun 24, 2020
@stmitt stmitt changed the title 13.5 Background not always triggered consistently iOS 13.5 Background Task not always triggered consistently Jun 24, 2020
@stmitt stmitt added the bug Something isn't working label Jun 25, 2020
@UBaggeler
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#178 improves background task scheduling in some cases (makes sure it gets scheduled only after EN is authorized). We're still investigating other cases with Apple.

@ghost
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ghost commented Jul 26, 2020

Ich habe ein iPhone SE mit iOS 13.6 und SwissCovid App Version 1.0.7

der oben rubrifizierte Fehler #163 der SwissCovid App sollte gemäss der Technischen Information des BAG vom 22.07.2020 von Apple mit iOS 13.6 behoben sein. Ich habe soeben iOS 13.6 heruntergeladen und installiert. Das Problem mit der Hintergrundaktualisierung wurde dadurch leider NICHT behoben.

@UBaggeler
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Wurde die App nach der Installation von iOS 13.6 einmal gestartet? Die Background-Tasks von iOS werden zwar ab iOS 13.6 regelmässiger ge-scheduled, aber direkt nach der Aktualisierung von iOS nicht automatisch gestartet bis die SwissCovid App das erste Mal geöffnet wurde.

@ghost
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ghost commented Jul 27, 2020 via email

@UBaggeler
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@destoutz Damit wir das genauer analysieren können, und Apple ggf. die nötigen Analyse-Daten übermitteln können, benötigen wir eine sysdiagnose. Für Instruktionen können Sie mich via [email protected] erreichen.

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