Volley 正在工作，當(dāng)我關(guān)閉 listData 時，沒有崩潰并且工作良好，但沒有 listView：package com.example.tronksinc4d;import androidx.appcompat.app.AppCompatActivity;import android.content.Context;import android.content.Intent;import android.database.DataSetObserver;import android.os.Bundle;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.ListAdapter;import android.widget.ListView;import android.widget.TextView;import com.android.volley.Request;import com.android.volley.RequestQueue;import com.android.volley.Response;import com.android.volley.VolleyError;import com.android.volley.toolbox.JsonObjectRequest;import com.android.volley.toolbox.Volley;import com.google.gson.JsonArray;import com.google.gson.JsonObject;import com.squareup.picasso.Picasso;import com.squareup.picasso.PicassoProvider;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import java.util.ArrayList;public class Home extends AppCompatActivity {       public static prefconfig prefcoonfig;       private TextView helloo;       RequestQueue requestQueue;       String url = "https://tronksinc4d.000webhostapp.com/show_all_movies.php";       ArrayList<listitem> listmovies = new ArrayList<listitem>();       ListView listView;       TextView text_total, try_data;      @Override   `enter code here`   protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_home);        prefcoonfig = new prefconfig(this);        helloo = (TextView) findViewById(R.id.hello);        helloo.setText(" ???? ?? " + prefcoonfig.readname());