how to use push notification in iphone SDK3.0? -

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I'm new to iPhone application development. First tell me what is push notification? Why do we use push notifications? And last how can we use push notifications?

Push notification where a remote server can send messages and sound to iPhone and iPod touch messages But do not run your application. That is, this is a way of getting around this fact that the iPhone does not allow the third part behind the background

Apple has documented it very well, see for more details.


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