Recyclerview更新，删除

Question

我已经建立了一个讨论论坛，登录的人可以提问，主论坛显示不同用户提出的所有问题。每个人都可以回答这个问题并评价。

问题是什么时候添加问题活动的问题会回到讨论论坛而不是刷新。我想要的是，一旦提出问题，它应该在讨论论坛中显示，用户应该能够修改和删除该问题。一切都是动态的，如何删除动态数据。

这是我的论坛代码

package com.example.pitechnologies.pkguru.fragment;


public class DiscussionForumFragment extends Fragment {
TextView title;
RelativeLayout askquestion;
public View view;
UserProfileData userProfileData;
String U_id;
EditText que, desc;
TextView btnask;
String uname;
LinearLayout linearLayout;
ImageView imgSpoon;
final List<Model_Forum> unilist = new ArrayList<>();

private static String TAG = DiscussionForumFragment.class.getSimpleName();
private RecyclerView forumrecyclerView;
private ForumList_Adapter forumAdapter;
public DiscussionForumFragment() {

}

@Override
public void onStart() {
    ((AppCompatActivity) getActivity()).getSupportActionBar().hide();
    super.onStart();
}
@Override
public void onResume() {
    super.onResume();
    ((AppCompatActivity) getActivity()).getSupportActionBar().hide();
  //   forumdata();
}
@Override
public void onStop() {
    super.onStop();
    ((AppCompatActivity) getActivity()).getSupportActionBar().show();
}
@Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    view = inflater.inflate(R.layout.fragment_discussion_forum, container, false);
    title = (TextView) view.findViewById(R.id.forumtitle);
    title.setText("DISCUSSION FORUM");
    askquestion = (RelativeLayout) view.findViewById(R.id.askquestion);

    askquestion.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if(PreferenceHelper.getInstance(getActivity()).getSemid() == null) {
                Intent intent = new Intent(getActivity(), ActivityLoginSignUp.class);
                startActivity(intent);
            }else {
                Intent intent = new Intent(getActivity(), ActivityQuestionaire.class);
                intent.putExtra("uu_id", U_id);
                startActivity(intent);
            }
        }
    });
    forumrecyclerView = (RecyclerView) view.findViewById(R.id.recyclerview_forum);
    forumrecyclerView.setHasFixedSize(true);
    forumrecyclerView.setLayoutManager(new LinearLayoutManager(DiscussionForumFragment.this.getActivity()));
    forumAdapter = new ForumList_Adapter(DiscussionForumFragment.this.getContext(), unilist);
    forumrecyclerView.setAdapter(forumAdapter);
    forumrecyclerView.setNestedScrollingEnabled(false);
    imgSpoon = (ImageView) view.findViewById(R.id.image_spoon);
    linearLayout = (LinearLayout) view.findViewById(R.id.pg_loader);
    linearLayout.setVisibility(View.INVISIBLE);
    forumdata();
    return view;

}
public void forumdata() {
    unilist.clear();
   /* final ProgressDialog pDialog = new ProgressDialog(getActivity());
    pDialog.setMessage("Loading...");
    pDialog.show();*/
    linearLayout.setVisibility(View.VISIBLE);
    ObjectAnimator flip = ObjectAnimator.ofFloat(imgSpoon, "rotationY", 0f, 180f);
    flip.setDuration(800);
    flip.setRepeatCount(Animation.INFINITE);
    flip.start();
    StringRequest strReq = new StringRequest(Request.Method.POST,
            URLconstant.FORUM, new Response.Listener<String>() {

        @Override
        public void onResponse(String response) {
            Log.d(TAG, response.toString());
            try {
                JSONObject data = new JSONObject(response);
                Log.d("data", data.toString());
                JSONArray datarray = data.getJSONArray("data");
                for (int i = 0; i < datarray.length(); i++) {
                    JSONObject secondobj = datarray.getJSONObject(i);
                    Log.d("secondobj", secondobj.toString());
                    Model_Forum model_forum = new Model_Forum();
                    model_forum.mforum_id = secondobj.getString("forum_id");
                    model_forum.mqst = secondobj.getString("qst");
                    model_forum.mqst_description = secondobj.getString("qst_description");
                    model_forum.mqst_uid = secondobj.getString("qst_uid");
                    model_forum.muser_id = secondobj.getString("user_id");
                    model_forum.mfullname = secondobj.getString("fullname");
                    model_forum.muniver_id = secondobj.getString("univer_id");
                    model_forum.mbranchid = secondobj.getString("branchid");
                    model_forum.msemid = secondobj.getString("semid");
                    model_forum.mcollegeid = secondobj.getString("collegeid");
                    model_forum.muser_image = secondobj.getString("user_image");
                    model_forum.mq_date = secondobj.getString("q_date");
                    model_forum.mq_time = secondobj.getString("q_time");
                    unilist.add(model_forum);
                }
                if (getContext() != null) {
                   /* forumAdapter = new ForumList_Adapter(DiscussionForumFragment.this.getContext(), unilist);
                    forumrecyclerView.setAdapter(forumAdapter);*/
                    forumAdapter.notifyDataSetChanged();
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
            //  pDialog.dismiss();
            linearLayout.setVisibility(View.INVISIBLE);
        }
    }, new Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            VolleyLog.d(TAG, "Error: " + error.getMessage());
            //  pDialog.dismiss();
            linearLayout.setVisibility(View.INVISIBLE);
        }
    });
    MySingleton.getInstance(getActivity()).addToRequestQueue(strReq);
}