1 min readAug 4, 2020
You can check the appleAuthorizedUserIdKey value in UserDefaults. If it is nil then display the Sign in with Apple button.
Written by Lee Kah Seng
Support me by becoming a Medium member: https://leekahseng.medium.com/membership ⦿ 🇲🇾 Creator of https://swiftsenpai.com ⦿ iOS developer since 2011