Firebase: Get DisplayName from UID [duplicate]
问题 This question already has answers here : How do I return a list of users if I use the Firebase simple username & password authentication (6 answers) Closed 2 years ago . I am storing user's display name in Firebase Auth. Fetching from Firebase Auth is simple when the same user is logged in. But, when another user is logged in, how do I fetch an account's display name when I have their unique UID (User ID). 回答1: You can't The explanation is here How do I return a list of users if I use the