Ziehen Sie, um das Recycling-Android zu aktualisieren

Sie können Android SwipeRefreshLayout widget anstelle von ProgressDialog verwenden.

Befolgen Sie die folgenden Schritte, um SwipeRefreshLayout in Ihr Tab1history-Fragment zu integrieren:

1. Fügen Sie in Ihrem Layout tab1historySwipeRefreshLayout als Stammlayout hinzu und platzieren Sie RecyclewrView darin.

// tab1history.xml
<?xml version="1.0" encoding="utf-8"?>
<Android.support.v4.widget.SwipeRefreshLayout
    xmlns:Android="http://schemas.Android.com/apk/res/Android"
    Android:id="@+id/swipe_container"
    Android:layout_width="match_parent"
    Android:layout_height="match_parent">

        <Android.support.v7.widget.RecyclerView
            Android:id="@+id/my_recycler_view"
            Android:layout_width="match_parent"
            Android:layout_height="match_parent" />

</Android.support.v4.widget.SwipeRefreshLayout>

2. Verwenden Sie in Ihrem Tab1History-Fragment SwipeRefreshLayout wie folgt, um Daten vom Server zu laden:

// Tab1History.Java
import Android.os.Bundle;
import Android.support.v4.app.Fragment;
import Android.support.v4.widget.SwipeRefreshLayout;
import Android.support.v7.widget.LinearLayoutManager;
import Android.support.v7.widget.RecyclerView;
import Android.view.LayoutInflater;
import Android.view.View;
import Android.view.ViewGroup;

import com.Android.volley.Request;
import com.Android.volley.Response;
import com.Android.volley.toolbox.StringRequest;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import Java.util.ArrayList;


public class Tab1History extends Fragment implements SwipeRefreshLayout.OnRefreshListener {

    SwipeRefreshLayout mSwipeRefreshLayout;
    private RecyclerView recyclerView;
    private CespiteAdapter adapter;
    UserSessionManager session;

    private static final String URL_DATA = "http://mydata.php";

    private List<CespiteOgg> cespiteOggList;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState)
    {

        View rootView = inflater.inflate(R.layout.tab1history, container, false);


        recyclerView = (RecyclerView) rootView.findViewById(R.id.my_recycler_view);
        recyclerView.setHasFixedSize(true);//every item of the RecyclerView has a fix size
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

        cespiteOggList = new ArrayList<>();


        // SwipeRefreshLayout
        mSwipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipe_container);
        mSwipeRefreshLayout.setOnRefreshListener(this);
        mSwipeRefreshLayout.setColorSchemeResources(R.color.colorPrimary,
                Android.R.color.holo_green_dark,
                Android.R.color.holo_orange_dark,
                Android.R.color.holo_blue_dark);

        /**
         * Showing Swipe Refresh animation on activity create
         * As animation won't start on onCreate, post runnable is used
         */
        mSwipeRefreshLayout.post(new Runnable() {

            @Override
            public void run() {

                mSwipeRefreshLayout.setRefreshing(true);

                // Fetching data from server
                loadRecyclerViewData();
            }
        });

        return rootView;
    }

    /**
     * This method is called when swipe refresh is pulled down
     */
    @Override
    public void onRefresh() {

        // Fetching data from server
        loadRecyclerViewData();
    }

    private void loadRecyclerViewData()
    {
        // Showing refresh animation before making http call
        mSwipeRefreshLayout.setRefreshing(true);

        // Session class instance
        session = new UserSessionManager(getActivity());
        //get user data from session
        HashMap<String, String> user = session.getUserDetails();
        //get name
        String name = user.get(UserSessionManager.KEY_NAME);
        // get username
        final String usernameUtente = user.get(UserSessionManager.KEY_USERNAME);


        StringRequest stringRequest = new StringRequest(Request.Method.POST,
                URL_DATA,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String s) {

                        try {
                            JSONObject jsonObject = new JSONObject(s);
                            JSONArray array = jsonObject.getJSONArray("dates");

                            for(int i=0; i<array.length(); i++)
                            {
                                JSONObject o = array.getJSONObject(i);
                                CespiteOgg item = new CespiteOgg(
                                        o.getString("CodNumInventario"),
                                        o.getString("Nome"),
                                        o.getString("DtCatalogazione"),
                                        o.getString("CodIdA"),
                                        o.getString("username")
                                );
                                cespiteOggList.add(item);
                            }

                            adapter = new CespiteAdapter(cespiteOggList, getActivity());
                            recyclerView.setAdapter(adapter);

                        } catch (JSONException e) {
                            e.printStackTrace();
                        }

                        // Stopping swipe refresh
                        mSwipeRefreshLayout.setRefreshing(false);

                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {

                        // Stopping swipe refresh
                        mSwipeRefreshLayout.setRefreshing(false);
                    }
                })
        {
            @Override
            protected Map<String, String> getParams() throws AuthFailureError {
                Map<String, String> params = new HashMap<String, String>();
                params.put("Username", usernameUtente);
                return params;
            }
        };

        RegisterRequest.getmInstance(getActivity()).addToRequestque(stringRequest);

    }
}

Hoffe das wird richtig funktionieren.