iphone - 当我的 iPad 关闭时只收到最后的推送通知

Question

我在 iPad 关闭时向我的 iPad (iOS 5.1.1) 发送了 3 个推送通知。

当我打开 iPad 时 - 通知中心仅显示最后一条推送通知。

我使用 Appoxee.com 作为我的推送服务器

谢谢你的帮助

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.