通知中心中的图像预览 [英] Image previews in Notification Center

问题描述

是否可以将图像添加到推送通知的有效负载中？我已经看到它在照片&消息应用。我希望这不是一些私有Apple API。

Is it possible to add an image to a push notification's payload? I've seen it being done in the Photos & Messages apps. I was hoping this wasn't some private Apple API.

下面的屏幕截图是在运行iOS 6的设备上拍摄的。

The screen shot below was taken on a device running iOS 6.

推荐答案

不可能

根据推送通知编程指南，有效负载最大大小不应超过256字节：

According to the Push Notification Programming guide the payload max size should not exceed 256 Bytes:

文档摘录：

有效载荷长度 - 网络中有效载荷的长度订单（即
big endian）。有效负载不得超过256个字节，且不得为
以空值终止。

Payload length—The length of the payload in network order (that is, big endian). The payload must not exceed 256 bytes and must not be null-terminated.

以下是Apple文档链接：

Here´s the Apple Documentation link :

https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/CommunicatingWIthAPS.html#//apple_ref/ doc / uid / TP40008194-CH101-SW1

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