Flutter:Firebase FieldValue.serverTimestamp() 到 DateTime 对象 [英] Flutter: Firebase FieldValue.serverTimestamp() to DateTime object

问题描述

我有

FieldValue.serverTimestamp()

我找不到在 Flutter 中将此时间戳转换为 DateTime 对象的方法.有什么办法吗?或者任何其他使用 firebase 的 API 调用?

I couldn't find a way to convert this timestamp to DateTime object in Flutter. Is there any way to do it? Or any other API call using firebase?

推荐答案

FieldValue.serverTimestamp() 不是时间戳，而是所谓的哨兵——发送到服务器的标记，然后服务器识别并解释以写入当前时间戳.这意味着无法将 FieldValue.serverTimestamp() 转换为客户端上的时间戳.

The FieldValue.serverTimestamp() is not a timestamp, but a so-called sentinel - a marker that gets sent to the server, that the server then recognizes and interprets to write the current timestamp. That means there is no way to convert FieldValue.serverTimestamp() to a timestamp on the client.

您可以做的是写入 FieldValue.serverTimestamp() 到服务器上的文档，并观察写入该文档的值.该值将是一个有效的时间戳.

What you can do is write FieldValue.serverTimestamp() to a document on the server, and observe the value that is written to that document. This value will be a valid timestamp.

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