title: Android Google Sign In: check if User is signed in
body: <p>I am looking for a way to check if my user already signed in with Google Sign In.</p>
  
  <p>I support several logging APIs (Facebook, Google, custom), so I would like to build a static helper method like:
   <code>User.isUserLoggedIn()</code></p>
  
  <p>With Facebook I use: </p>
  
  <pre><code>if AccessToken.getCurrentAccessToken() != null { 
     return true
  } 
  </code></pre>
  
  <p>to check if the user is logged via Facebook.</p>
  
  <p>On iOS I use the following to check if the user is logged via Google Sign In:</p>
  
  <pre><code>GIDSignIn.sharedInstance().hasAuthInKeychain()
  </code></pre>
  
  <p><strong>My question:
  Is there an equivalent on Android to the iOS method :</strong> </p>
  
  <p><code>GIDSignIn.sharedInstance().hasAuthInKeychain()</code> ?</p>
  
  <p>I am looking for a method that doesn’t involve a callback. </p>
  
  <p>Thanks!
  Max</p>