Android 单击事件时，自动刷新SQLite中的其他选项卡

我正在编写一个简单的应用程序。我有两个标签，带碎片。第一个选项卡列出SQLite数据库中的所有记录，第二个选项卡只列出“收藏夹”。当我点击imageView（它显示的是一个星图）时，它的意思是“添加收藏夹”，它正在更新这个记录“收藏夹记录”，并显示在第二个选项卡上。 我的问题：我需要当我在Tab1时，当我单击imageView时，Tab2列表必须在单击的同时刷新（再次加载列表以进行更新）。当我点击一个按钮，查看图片时，如何加载选项卡2。。。在选项卡1中 我正在使用RecyclerView。 示例代码： 选项卡1片段

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.tab_ana, container, false);
        db = new DBHelper(getActivity());

        recyclerView = (RecyclerView) view.findViewById(R.id.recycleMain);
        dataFavori = db.getAllFavs();
        rvAdapter = new Tab1Adapter(getContext(), dataFavori);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        recyclerView.setAdapter(rvAdapter);
return view;
}

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.tab_fav, container, false);
    db = new DBHelper(getActivity());

    recyclerView = (RecyclerView) view.findViewById(R.id.recycleMain);
    dataFavori = db.getOnlyFavs();
    fvAdapter = new Tab2Adapter(getContext(), dataFavori);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    recyclerView.setAdapter(fvAdapter);

    return view;
}

选项卡1适配器

holder.imageFav.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
      db.updateFav(itemId);
}

选项卡2片段

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.tab_ana, container, false);
        db = new DBHelper(getActivity());

        recyclerView = (RecyclerView) view.findViewById(R.id.recycleMain);
        dataFavori = db.getAllFavs();
        rvAdapter = new Tab1Adapter(getContext(), dataFavori);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        recyclerView.setAdapter(rvAdapter);
return view;
}

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.tab_fav, container, false);
    db = new DBHelper(getActivity());

    recyclerView = (RecyclerView) view.findViewById(R.id.recycleMain);
    dataFavori = db.getOnlyFavs();
    fvAdapter = new Tab2Adapter(getContext(), dataFavori);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    recyclerView.setAdapter(fvAdapter);

    return view;
}

---

对于这种情况，您可以使用

androidjetpack

中的livedata和viewmodel。您能解释一下，我如何使用这些东西吗？或者你能给我一些例子链接吗？