Firebase for Android
Essential Firebase services: Authentication, Firestore, Realtime Database, Cloud Messaging, Analytics, Crashlytics, Storage, and Remote Config
1Which Firebase configuration file must be placed in the app/ folder of an Android project?
Which Firebase configuration file must be placed in the app/ folder of an Android project?
답변
The google-services.json file contains all Firebase configurations (API keys, project ID, etc.) and must be placed in the app/ folder. This file is generated from the Firebase console when adding the Android app to the Firebase project.
2How do you create a user account with email and password in Firebase Authentication?
How do you create a user account with email and password in Firebase Authentication?
답변
The createUserWithEmailAndPassword() method of FirebaseAuth creates a new user account with the provided credentials. It returns a Task that, on success, contains an AuthResult with the created user's information.
3How do you retrieve the currently logged-in user in Firebase Auth?
How do you retrieve the currently logged-in user in Firebase Auth?
답변
The currentUser property of FirebaseAuth returns the currently logged-in user as a FirebaseUser object, or null if no user is logged in. This object contains information like uid, email, displayName, photoUrl, etc.
What is the syntax to add a document in Cloud Firestore?
Which Firestore method allows updating only certain fields of a document?
+20 면접 질문