小编par*_*war的帖子

我正在使用,FirebaseRecyclerOptions因为我升级到新的FirebaseUI 3.0版本,但现在我无法从数据库中检索任何内容.过去在旧FirebaseRecylcerAdapter方法中使用的代码相同.好像它甚至没有进入onBindViewHolder.

初始化

linearLayoutManager = new LinearLayoutManager(this);
        linearLayoutManager.setReverseLayout(true);
        linearLayoutManager.setStackFromEnd(true);
        recyclerView = findViewById(R.id.main_recycler);
        recyclerView.hasFixedSize();
        recyclerView.setLayoutManager(linearLayoutManager);    
queryDatbase = mDatabase.child("chatlist").child(cUser);
        queryDatbase.keepSynced(true);
Query query = queryDatbase.orderByChild("time");
        query.keepSynced(true);

FirebaseRecyclerAdapter代码

firebaseoptions = new FirebaseRecyclerOptions.Builder<ConvModel>().setQuery(query,ConvModel.class).build();

    firebaseadapter = new FirebaseRecyclerAdapter<ConvModel, ChatlistHolder>(firebaseoptions) {
        @Override
        protected void onBindViewHolder(final ChatlistHolder holder, int position,final ConvModel model) {
            final String each_user_id = firebaseadapter.getRef(position).getKey();
            Toast.makeText(MainActivity.this, each_user_id, Toast.LENGTH_SHORT).show();
            //region SET EACH USER IMAGE and USERNAME
            assert each_user_id != null;
            mDatabase.child("users").child(each_user_id).addValueEventListener(new ValueEventListener() {
                @Override
                public void onDataChange(@NonNull DataSnapshot dataSnapshot) { …