> My initial thought was that we didn't have a straightforward way to ensure that the background task that writes the file runs before responding to the notification finishes
I don't think we need that guarantee, a best effort to start writing to disk when we get the notification is enough. The last activity to be active is always highly prioritized in Android, so the chance that we get killed immediately after receiving `application-background` is very low.
Bug 1757138 Comment 12 Edit History
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> My initial thought was that we didn't have a straightforward way to ensure that the background task that writes the file runs before responding to the notification finishes
I don't think we need that guarantee, a best effort to start writing to disk when we get the notification is enough. The last app to be active is always highly prioritized on Android, so the chance that we get killed immediately after receiving `application-background` is very low.