objective c - iOS preload notification items in the app, why not? -

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imagine have gmail app installed on iphone , in area bad/unstable 2g internet connection, take phone , see notification new mail gmail app, see subject , few words letter itself, when swipe notification view whole letter can't because @ moment 2g connection lost. pretty annoying actually.

so question is: why apps not somehow preload pieces of information they've shown user notification? in case, why gmail doesn't preload letter, i've notified about? ios issue or apps don't that?

because that's not design of push notification. can send 256kb data using it. when swipe view notification - network call made receive rest of notification. saves battery life , network costs. imaging if push notification downloads data each notification.. go through battery life quick, while you're not using phone.


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