您必须把你的的WebView 作为浏览器。怎么样的Chrome浏览器让你每次访问Gmail的时候可以自动登录？它的Gmail存储会话cookie。

You have to regard your WebView as a browser. How does a browser like Chrome let you be automatically signed in each time you visit Gmail? It stores the session cookies from Gmail.

要存储cookie从的WebView ，下一次重新使用它们，检查出的 CookieManager 。

To store cookies from your WebView and reuse them the next time, check out CookieManager.