从特定的 userID firebase 回收器适配器获取键值

Question

 我想获得如下图所示的键值。我正在使用 firebase 回收器适配器来检索来自键的数据，但现在我想获取键值。

现在我正在使用的代码仅检索数据 this 。

 private void setFirebaseRecyclerAdapterKarangan() {

        firebaseRecyclerOptionsKarangan = new FirebaseRecyclerOptions.Builder<UserAlphaKaranganClick>()

                .setQuery(databaseReference.child("userAlphaKaranganClick").child(userUid), UserAlphaKaranganClick.class)

                .build();

    firebaseRecyclerAdapterKarangan = new FirebaseRecyclerAdapter<UserAlphaKaranganClick, UserAlphaActivityLogKaranganViewHolder>(firebaseRecyclerOptionsKarangan) {

        @Override

        protected void onBindViewHolder(@NonNull final UserAlphaActivityLogKaranganViewHolder holder, final int position, @NonNull final UserAlphaKaranganClick model) {

            //We need to convert to become string since it is from long

            holder.getTextViewClick().setText(String.valueOf(model.getClick()));

            holder.getTextViewLike().setText(String.valueOf(model.getLike()));

        }

        @NonNull

        @Override

        public UserAlphaActivityLogKaranganViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

            View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.user_alpha_activity_log_karangan_item, viewGroup, false);

            return new UserAlphaActivityLogKaranganViewHolder(view);

        }

    };

    //Display

    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getApplicationContext());

    linearLayoutManager.setStackFromEnd(true);

    linearLayoutManager.setReverseLayout(true);

    firebaseRecyclerAdapterKarangan.startListening();

    recyclerView2.setAdapter(firebaseRecyclerAdapterKarangan);

    recyclerView2.setLayoutManager(linearLayoutManager);

}

爪哇安卓火力基地

Answer 1

在方法内部onBindViewHolder添加以下内容：String&nbsp;key&nbsp;=&nbsp;firebaseRecyclerAdapterKarangan.getRef(position).getKey();getKey()将检索随机 ID 中此快照的引用。