Programming Apple Push Notification Services - mobiForge

One of the key limitations of the iPhone is its constraint on running applications in the background. Because of this, applications cannot keep running in the background when the user switches to another application. So, applications that require a constant state of connectivity (such as social networking applications) will not be able to receive timely updates. To remedy this limitation, Apple re

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サルでも分かるプッシュ通知。