title: Azure mobile client 4.0 - how use LoginAsync?
body: <p>I used azure mobile net client 3.1.0.0. This is my old code in my Android client:</p>
  
  <pre><code> IMobileServiceClient client;
   //for Android
   //from Microsoft.WindowsAzure.Mobile.Ext
   var user = await client.LoginAsync(Forms.Context, provider);
  </code></pre>
  
  <p>Now I have updated to the new version 4.0. I need authorization with Google account. This is the code I found in the documentation:</p>
  
  <pre><code> IMobileServiceClient client;
   var token = new JObject {{"access_token", "access_token_value"}};
   user = await client.LoginAsync(provider, token);
  </code></pre>
  
  <p>How do I get "access_token_value" on client Android?
  Please help me. I need a small example or reference to the documentation.</p>