Game Center Implementation

I am trying to integrate our iOS game with game center using Unity Social API,

My question is that whenever I authenticate, user will be prompted to login:

Social.localUser.Authenticate (success => {
if (success)
{
Debug.Log ("Authentication successful");
}
else
{
Debug.Log ("Authentication failed");
}
});

In Amazon Game Circle for example, there is initialize function and it checks if already user is logged in or not, but doesn't prompt user to login and there is a separate login command to prompt users.

I am basically looking for similar function here with Game Center, because it would be annoying for users to get prompted to login ( if they don't want to login ) into game center everytime they visit the app .

Can anyone please give me a hint on this? I am stucked for a while now.

Thanks.

 

Same thread as earlier one?
http://forum.unity3d.com/threads/217431-Game-Center-Authentication

 

Sorry I have missed that, Thank you for the reply.