问题
Is it possible to keep an iOS app in "Background" state by sending it a silent push notification every few seconds? I want to run background tasks on a regular interval and this seems like a viable solution. If so, is this acceptable under the App Store terms of use?
The app I am planning to build would rely on this functionality and I am concerned that Apple will reject it from the App Store.
Specifically, it’s this section in the guidelines that I am not sure about:
5.1 Apps that send Push Notifications without first obtaining user consent, as well as apps that require Push Notifications to function, will be rejected
Technically my app could be used without allowing push notifications but it wouldn’t serve its primary function of recording data in the background.
回答1:
In iOS7 additional background modes were added, you can check out the available background modes here.
IMHO, if you misuse one of the background modes, the app will probably be rejected, saying that , i don't think silent push notifications were meant for: keep an iOS app in "Background" state by sending it a silent push notification every few seconds.
another thing is that silent push notifications are rate limited as described here, so i'm not sure if they will be sent every few seconds.
maybe you can use another background service
回答2:
This is only possible via Cydia. Which means you will need to have a Repository, and jailbroken device for this to work.
The App Store will surely reject this, as it forces other apps to work in the background.
来源：https://stackoverflow.com/questions/24742490/using-silent-push-notifications-to-keep-an-ios-app-in-background-state