Silent Background Notifications won't keep app awake

Hey guys,

unfortunately, I'm also struggling to get silent remote notifications to work within my iOS app. By means of the Console I have gotten as far as having assessed that the silent notifications actually make it to my device. From the logs I can see that my app seems to actually get started for a millisecond (running-active - role: Background) but then gets put back to "suspended" state. I have attached a log at the bottom.

It seems that SpringBoard starts my app due to the silent push notification but the system kills the app right away for some reason so that the callback

func application(_: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandlercompletionHandler: @escaping (UIBackgroundFetchResult) -> Void)

is never called.

What works is starting the app with the "wait for the executable to be launched" scheme flag set and then sending the push notification. That actually triggers an app start and gives me the push notifications values in the launchOptions.

Is this an expected behaviour? Since I don't have any Background modes active (aside from "Remote notifications") my app should get suspended pretty much right away when the user minimizes it, correct? In that case the silent push notification would always run through

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool

and didReceiveRemoteNotification would never get called. Or am I missing something?

Here's the console log:

Cheers

] sumScores:93.828182, denominator:97.010000, FinalDecision: Can Proceed FinalScore: 0.967201}

] sumScores:93.828182, denominator:97.010000, FinalDecision: Can Proceed FinalScore: 0.967201}

<RBSRunningReasonAttribute: 0x141f67800; runningReason: 10000>;

<RBSPreventIdleSleepGrant: 0x141f50260>;

<RBSDefineRelativeStartTimeGrant: 0x141f60d00>;

<RBSGPUAccessGrant: 0x141f5d6b0>;

<RBSCPUAccessGrant: 0x141f5a920; role: Background>;

}

<RBSHereditaryGrant: 0x141e53870> {

endowmentNamespace = com.apple.boardservices.endpoint-injection;

hasEncodedEndowment = YES;

};

}

<RBSLegacyAttribute: 0x141d56150; requestedReason: BackgroundContentFetching; reason: BackgroundContentFetching; flags: PreventTaskSuspend>;

<RBSAcquisitionCompletionAttribute: 0x141d5f610; policy: 0>;

}

HighFrequency = 1;

bundleID = "de.myapp.app";

pid = 481;

} inactive:1 events:0 mask:0x0

<RBSSubordinateProcessAttribute: 0x141d55d00>;

}

<RBSRunningReasonAttribute: 0x141f62260; runningReason: 10001>;

<RBSDefineRelativeStartTimeGrant: 0x141f5c4b0>;

<RBSGPUAccessGrant: 0x141f63ed0>;

<RBSCPUAccessGrant: 0x141f61140; role: NonUserInteractive>;

<RBSJetsamPriorityGrant: 0x141f531b0; priority: Background>;

<RBSDurationAttribute: 0x141f5c470; invalidationDuration: 20.00; warningDuration: 0.00; startPolicy: Fixed; endPolicy: Invalidate>;

<RBSResistTerminationGrant: 0x141f5c4a0; terminationResistance: NonInteractive>;

}