iPad가 꺼져있을 때 마지막 푸시 알림 만 수신됩니다.

Question

iPad가 꺼져있는 동안 내 iPad (iOS 5.1.1)에 3 푸시 알림을 보냅니다.

iPad를 켜면 - 마지막 푸시 알림 만 알림 센터에 표시됩니다. (난 당신도 알고있을거야) 나는 당신의 도움이

Answer 1

Quality of Service 

Apple Push Notification service includes a default Quality of Service (QoS) component that performs a store-and-forward function. 

If APNs attempts to deliver a notification but the device is offline, the notification is stored for a limited period of time, and delivered to the device when it becomes available. 

Only one recent notification for a particular application is stored. If multiple notifications are sent while the device is offline, each new notification causes the prior notification to be discarded. This behavior of keeping only the newest notification is referred to as coalescing notifications. 

If the device remains offline for a long time, any notifications that were being stored for it are discarded.