java - 我该如何修复 E/RecyclerView : No adapter attached; skipping layout problem

Question

获取E/RecyclerView的问题:没有连接适配器；在应用程序打开时跳过布局。

private RecyclerView recyclerView;

private UserAdapter userAdapter;
private List<User> mUsers;

FirebaseUser fuser;
DatabaseReference reference;

private List<Chatlist> usersList;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_chats, container, false);

    recyclerView = view.findViewById(R.id.recycler_view);
    recyclerView.setHasFixedSize(true);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

    fuser = FirebaseAuth.getInstance().getCurrentUser();

请帮忙

Answer 1

看起来您在文件顶部声明了一个适配器，但我没有看到您将数据源设置到适配器上，然后在回收器上设置适配器，如下所示:

userAdapter = new UserAdapter(mUsers);
recyclerView.setAdapter(userAdapter);

另外，你写过完整的UserAdapter吗？

Google 有一些很棒的文档，其中包含如何实现 Recyclerview 的示例: https://developer.android.com/guide/topics/ui/layout/recyclerview