从一个片段切换到另一个片段时，第一个片段将进入初始状态。如何还原回收站视图的状态？

Question

我正在开发类似于instagram的android应用程序。在主要活动中，我使用了四个片段供稿，搜索用户，个人资料等。但是，当我从包含所有帖子的主页片段切换到其他片段时，并且当我返回到主页片段时，我希望它处于相同状态就像我之前离开的一样。但是它又从顶部开始。我该如何解决这个问题？

这是家庭片段的代码。

公共类HomeFragment扩展了片段{

private RecyclerView recyclerView;
private PostAdapter postAdapter;
private ArrayList<Post> postLists;
private ImageView notification;
private ImageView add_post;
private ImageView request_pickup;
private TextView pls_follow, no_posts;
private Button click_follow;
Fragment selectedFragment = null;
SwipeRefreshLayout swipeRefreshLayout;
private List<String> followingList;
ProgressBar progressBar;


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

    notification = view.findViewById(R.id.notification);
    pls_follow = view.findViewById(R.id.pls_follow);
    click_follow = view.findViewById(R.id.click_follow);
    no_posts = view.findViewById(R.id.no_posts);

    notification.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(getContext() , NotificationActivity.class);
            ContextCompat.startForegroundService(getContext() , intent);
            startActivity(intent);
        }
    });

    add_post = view.findViewById(R.id.add_post);

    add_post.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(getContext() , PostSelectActivity.class);
            ContextCompat.startForegroundService(getContext() , intent);
            startActivity(intent);
        }
    });

    request_pickup=view.findViewById(R.id.request_pickup);

    request_pickup.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(getContext() , Request_Pickup.class);
            ContextCompat.startForegroundService(getContext() , intent);
            startActivity(intent);
        }
    });


    recyclerView = view.findViewById(R.id.recycler_view12);
    recyclerView.setHasFixedSize(true);
    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
    linearLayoutManager.setReverseLayout(true);
    linearLayoutManager.setStackFromEnd(true);
    recyclerView.setLayoutManager(linearLayoutManager);
    postLists = new ArrayList<>();
    postAdapter = new PostAdapter(getContext() , (List<Post>) postLists);
    recyclerView.setAdapter(postAdapter);

    progressBar = view.findViewById(R.id.progress_circular);

    checkFollowing();

    return view;
}

}