Hello! I am wondering. The Google Play Quality Checklist, marked Required says:
"General audience apps should implement silent sign-in to help players get quickly authenticated and authorized to use the full set of features provided by the Google Play games services. If silent sign-in fails, your app should prompt players to sign in interactively.
If the player chooses not to sign in, remember this and do not prompt the player again. Instead, provide a sign-in button."
Link: Google Play 게임 서비스 품질 체크리스트 | Google Developers
I can see we have the “Show External Login UI” node for logging in, and I think I’ve seen that it handles the silent/interactive login part. I can register if someone uses my sign out button to sign out, and then not call the node on startup, but I can’t really see any way of knowing if a player declined login on the google served UI, so I can choose not to call that node at startup. Am I missing something?