颤抖-如何保持用户使用Google登录 [英] flutter - How to keep user signed-in with Google

问题描述

我已经使用Google登录来通过Firebase Auth对用户进行身份验证，并且我成功取回了Firebase用户。当他们返回应用程序时，我想保持用户身份验证。我该怎么做？

I have used Google Sign In to authenticate users with Firebase Auth, and I successfully get back my Firebase User. I want to keep the user authenticated, when they come back to the app. How can I do the same?

推荐答案

用户已经保持身份验证。重新启动应用程序后，Firebase从磁盘读取凭据，并刷新用户的令牌。由于这需要往返服务器，因此它是异步发生的。因此，请确保等待_auth.currentUser（）来获取用户状态的通知。

Users already stay authenticated. After you restart the app, Firebase reads the credentials from disk, and refreshes the user's token. Since this requires a roundtrip to the server, it happens asynchronously. So be sure to await _auth.currentUser() to get notified of the user's status.

无论何时我想知道如何做这些事情，我看了 FlutterFire示例应用程序。可以在此处找到此行。

Whenever I'm wondering how to do such things, I look at the FlutterFire sample app. This specific line can be found here.

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