您可以使用 FirebaseUI.它负责登录用户界面、登录过程并让您有机会处理电子邮件验证，请查看有关如何进行 FirebaseUI 电子邮件验证的问题:

You can use the FirebaseUI. It takes care of the login-ui, login process and gives you a chance to handle the email verification, check out this question about how to do the FirebaseUI email verification:

Firebase Auth UIFirebaseUI 的电子邮件验证

在 FirebaseUI