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[英]How to retrieve array data from children node in Firebase Realtime Database Java? (Firebase Recycler Adapter)
[英]Array of children present in node of firebase realtime database in android studio
如果您只想检索节点名称,可以使用以下代码:
FirebaseDatabase database = FirebaseDatabase.getInstance();
DatabaseReference courceRef = database.getReference().child("Cources");
List<String> cources = ArrayList<String>();
courceRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
cources.clear();
for(DataSnapshot snap:dataSnapshot.getChildren()){
cources.add(snap.getKey());
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
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