"item03" : {
    "description" : "...... ",
    "image_url" : "....",
    "name" : ".....",
    "price" : "250.00"
}

item = FirebaseDatabase.getInstance().getReference("Category")
        .child(categoryID).child("Items");

private void fetchData() {
    FirebaseRecyclerOptions<ItemModel> options = new FirebaseRecyclerOptions.Builder<ItemModel>()
            .setQuery(item, new SnapshotParser<ItemModel>() {

        @NonNull
        @Override
        public ItemModel parseSnapshot(@NonNull DataSnapshot snapshot) {
            return new ItemModel(snapshot.child("name").getValue().toString(),
                    snapshot.child("description").getValue().toString(),
                    snapshot.child("image_url").getValue().toString(),
                    snapshot.child("price").getValue().toString());
        }
    }).build();

    // Set the adapter
    itemsAdapter = new ItemsRecyclerViewAdapter(options);
}

我无法访问name、imageurl和其他属性，因为snapshot.getvalue返回true如何从具有一对多关系的firebase检索值？