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Apple support doc details Push Notifications

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By Charles Starrett

Contributing Editor
Published: Friday, June 19, 2009
News Categories: iPhone

Apple has published a new support document outlining how the new Push Notification system in iPhone OS 3.0 operates. The article states that users must open any app at least once before it can receive notifications, and when restoring from a backup, the app(s) will need to be reopened to get notifications. Notably, the article also states that when an iPod touch unit is on and has a Wi-Fi connection, notifications can be received at any time, but if the screen of the iPod touch is asleep, the device will check for notifications once every 15 minutes. It is unclear whether the iPhone, iPhone 3G, and iPhone 3GS exhibit similar behavior due to their persistent cellular connections.

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Comments

1

This cannot be true. It’s so bad done.

Posted by JABian on June 19, 2009 at 10:42 AM (PDT)

2

wait wait wait, hold up a second
“Check” ???
“check for notifications” != Push.  Check = what it’s doing now, which is pull.

Posted by Adam on June 19, 2009 at 12:36 PM (PDT)

3

Ummmmm of course this is how it is going to work! The radio on the iPhone is always on, so constant push even when idle is possible. On the iPod touch, you have to have your iPod CONSTANTLY connected to WiFi for any remote communication to happen. When it is asleep, WiFI is shut off. How the heck do you expect anything to happen???? How is the remote service supposed to contact your iPod touch and tell it to connect to the access point?? Not possible.

If you want a device for constant communication. You should have gotten an iPhone, not an iPod touch.

Posted by Christopher Cox on June 20, 2009 at 3:20 PM (PDT)

4

The real question is “when the heck are they going to start allowing these apps???”
I have a couple of apps that use this and the app store isn’t allowing them thru!!!  I guess not ready for primetime!  That’s your real story.

Posted by Pablo Discobar on June 21, 2009 at 3:49 AM (PDT)

5

I know it’s been only.. what 4 or 5 days since 3.0 came out, but the lack of approved apps with push is getting to me too. You would think Apple would want to show these features off and put a high priority on the most downloaded IM/messaging/etc apps for approval.

Posted by Ned Scott on June 21, 2009 at 2:42 PM (PDT)

6

And yeah, 15 minute push updates while in standby mode… wat? At least allow us to sacrifice some battery life and select 5 minute updates, or allow constant updates when plugged in to power.

Posted by Ned Scott on June 21, 2009 at 2:44 PM (PDT)

7

The iPod touch is constantly connected when it’s plugged in. Even if locked

Posted by Chris on June 23, 2009 at 3:52 AM (PDT)

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