使RecyclerView适配器为不同的用户显示不同的视图

Firebase firestore 以存储聊天信息。

有些特定的消息我只希望其中一个用户收到。

目前我有两种视图类型:

2. 发送消息的视图类型

假设有以下对话:

用户1到用户2: CLICKS ON A BUTTON AND AN AUTOMATIC MESSAGE IS SENT <----want it to show only to user2.

我如何确保只有user2会得到它?

@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View view;
    if (viewType == AppConstants.CHAT_SENT_KEY) {
        view = LayoutInflater.from( parent.getContext() ).inflate(
                R.layout.item_chat_sent,
                parent,
                false );
        return new ChatViewHolder( view );

    } else if (viewType == AppConstants.CHAT_RECEIVED_KEY) {
        view = LayoutInflater.from( parent.getContext() ).inflate(
                R.layout.item_chat_received,
                parent,
                false );
        return new ChatViewHolder( view );

    } else {
        view = LayoutInflater.from( parent.getContext() ).inflate( R.layout.item_loading, parent, false );
        return new LoadingViewHolder( view );
    }

}

@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int position) {

    if (viewHolder instanceof ChatViewHolder) {
        ((ChatViewHolder) viewHolder).bind( (chats.get( position )) );
    } else if (viewHolder instanceof LoadingViewHolder) {
        showLoadingView( (LoadingViewHolder) viewHolder, position );
    }

}

@Override
public int getItemViewType(int position) {
    if (chats.get( position ).getSenderId().contentEquals( userId )) {
        if (position == 0 && chats.size() > 49 && snapSize > 49) {
            return AppConstants.CHAT_LOADING_KEY;
        } else {
            return AppConstants.CHAT_SENT_KEY;
        }
    } else {
        if (position == 0 && chats.size() > 49 && snapSize > 49) {
            return AppConstants.CHAT_LOADING_KEY;
        } else {
            return AppConstants.CHAT_RECEIVED_KEY;
        }
    }
}

有什么联系吗 viewTypes