相当于 Firebase 实时数据库中的 DocumentSnapshot

Question

DocumentSnapshot is for Firestore right? Is there any equivalent of DocumentSnapshot in Firebase RealTimeDatabase? Becasue i'll use it in my FirebaseRecyclerAdapter for recyclerview items to have an onclcick events on each items.

Answer 1

A DocumentSnapshot in Firestore is a snapshot of the data in a document, which is the basic unit of data storage in that database.

The equivalent on Firebase's Realtime Database would be a DataSnapshot , which contains the data for a node - the basic unit of data storage for that database. DataSnapshots are also what the FirebaseRecyclerAdapter class in the FirebaseUI library uses to track the current snapshots of the data.