在Flutter中保存到Firestore中之前，如何将DateTime转换为Timestamp? [英] How to convert DateTime to Timestamp before saving in Firestore in Flutter?

问题描述

我从datePicker中选择了日期"，并希望将该日期(类型为DateTime)保存为Firestamp类型的Firestore.我使用了Firestore.fromDate(date)，但它将数据存储在Firestore中作为地图(纳秒，秒).

I picked a "date" form datePicker and wanted to save that date (type as DateTime) to Firestore in Timestamp type. I used Firestore.fromDate(date) but it stores data in Firestore as a map(nanoseconds, seconds).

推荐答案

将Firebase Timestamp 类用作:

Use the Firebase Timestamp class as:

Timestamp.fromMicrosecondsSinceEpoch(myDateTime.microsecondsSinceEpoch)

还有许多其他的构造函数，请看一下文档.

There are many other constructors, take a look at the docs.

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