ios - didReceiveNotificationRequest :withContentHandler - execution time limit?

Question

UNNotificationServiceExtension有一个方法 didReceiveNotificationRequest:withContentHandler处理通知更改。

它有一个非常模糊的描述，关于超时时间:

That method has a limited amount of time to perform its task and execute the provided completion block. If your method does not finish in time,

这是对 serviceExtensionTimeWillExpire 的描述方法:

If your didReceiveNotificationRequest:withContentHandler: method takes to long to execute its completion block, the system calls this method on a separate thread to give you one last chance to execute the block.

我不完全明白，“to long to execute”是什么意思。 它有任何定量数据吗？它是否因运行的设备等而异？

谢谢!

Answer 1

https://developer.apple.com/reference/usernotifications/unnotificationserviceextension/1648229-didreceivenotificationrequest?language=objc#discussion

取自上面链接的 Apple 文档。

您的扩展有有限的时间(不超过 30 秒) 修改内容和执行 contentHandler block 。