语法：

achievement_login_status();

返回：

Boolean（布尔值）

描述

This function is currently only useful for Google Play on the Android platform. It will check to see if the user is already logged into Google services, in which case it will return true, or not, returning false. If it returns true there is no need to call the achievement_login function.

例如：

if !achievement_login_status()
   {
   achievement_login();
   }

The above code will log you into the chosen leaderboard and achievement service.