設備令牌 - 蘋果推送通知服務

Question

每當我打開我的應用程序時設備令牌更改？ Apple服務器每次都使用相同的設備令牌或新的重新生成的設備令牌？

Answer 1

您可以檢查開發者文件建立，下面是有提及 -

The form of this phase of token trust ensures that only APNs generates the token which it will later honor, and it can assure itself that a token handed to it by a device is the same token that it previously provisioned for that particular device—and only for that device.

If the user restores backup data to a new device or reinstalls the operating system, the device token changes.

因此，他們的唯一身份iPhone OS，直到重新安裝。

您可以在這裏查看細節 - http://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html#//apple_ref/doc/uid/TP40008194-CH100-SW12