小编Kar*_*rma的帖子

我收到了这个错误.

03-22 11:41:20.439 20933-20933/com.androidcss.jsonexample E/RecyclerView:没有连接适配器; 跳过布局03-22 11:41:20.760 20933-20933/com.androidcss.jsonexample W/art:在Android 4.1之前,方法int android.support.v7.widget.ListViewCompat.lookForSelectablePosition(int,boolean)会错误地覆盖android.widget.ListView中的package-private方法

MainActivity.java

package com.androidcss.jsonexample;

import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    // CONNECTION_TIMEOUT and READ_TIMEOUT are in milliseconds
    public static final int CONNECTION_TIMEOUT = 10000;
    public static final int READ_TIMEOUT = 15000;
    private …