Android Google登录:检查用户是否已登录 [英] Android Google Sign In: check if User is signed in

问题描述

我正在寻找一种检查用户是否已经使用Google登录登录的方法.

I am looking for a way to check if my user already signed in with Google Sign In.

我支持多个日志记录API(Facebook，Google，自定义)，因此我想构建一个静态帮助器方法，例如: User.isUserLoggedIn()

I support several logging APIs (Facebook, Google, custom), so I would like to build a static helper method like: User.isUserLoggedIn()

在Facebook上，我使用:

With Facebook I use:

if AccessToken.getCurrentAccessToken() != null { 
   return true
} 

检查用户是否通过Facebook登录.

to check if the user is logged via Facebook.

在iOS上，我使用以下命令检查用户是否通过Google登录进行登录:

On iOS I use the following to check if the user is logged via Google Sign In:

GIDSignIn.sharedInstance().hasAuthInKeychain()

我的问题: Android上与iOS方法是否等效:

My question: Is there an equivalent on Android to the iOS method :

GIDSignIn.sharedInstance().hasAuthInKeychain()吗?

我正在寻找一种不涉及回调的方法.

I am looking for a method that doesn’t involve a callback.

谢谢！ 最高

推荐答案

您可以使用此功能

private boolean isSignedIn() {
  return GoogleSignIn.getLastSignedInAccount(context) != null;
}

https://开发人员. google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignIn

公共静态GoogleSignInAccount getLastSignedInAccount(上下文上下文)

获取用户登录时使用的最后一个帐户.

Gets the last account that the user signed in with.

返回:最近一次成功登录的GoogleSignInAccount.如果 用户之前从未登录过或已退出/撤消访问权限， 返回null.

Returns: GoogleSignInAccount from last known successful sign-in. If user has never signed in before or has signed out / revoked access, null is returned.

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