使用Firebase Google用户身份验证更改用户 [英] Change user with Firebase Google user authentication

问题描述

使用Firebase Google用户身份验证时，如果用户已经授权了该应用程序并且仅登录到一个Google帐户，则会立即登录.

When using Firebase Google user authentication the user is immediately logged in if they have already authorized the application and only logged in to one Google account.

是否可以强制显示选择帐户"对话框，以便用户有机会登录到其他Google帐户或创建新帐户?

Is there a way to force the "Choose an account" dialog to appear so that the user has the opportunity to login to a different Google account or create a new one?

据我所知，用户必须从Google.com手动注销当前的Google帐户(或登录到> 1)以显示该对话框.

Currency as far as I know the user has to manually logout of the current Google account (or login to > 1) from Google.com to make the dialog appear.

推荐答案

您可以强制选择带有提示"提供程序参数的帐户.

You can force to choose an account with 'prompt' provider parameter.

var googleAuthProvider = new firebase.auth.GoogleAuthProvider();
googleAuthProvider.setCustomParameters({
   prompt: 'select_account'
});
firebase.auth().signInWithRedirect(googleAuthProvider)

经过Firebase JavaScript SDK v4.1.2的测试

Tested with Firebase JavaScript SDK v4.1.2

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