将数据从服务器加载到recyclerview和cardview

I follow this tutorial but I get some problem (https://www.simplifiedcoding.net/android-recyclerview-and-cardview-tutorial/) . I have a table named images with columns id and images.

This is my getData.php:

<?php 

    $sql = "SELECT * FROM images";

    require_once('dbConnect.php');

    $r = mysqli_query($con,$sql);

    $result = array(); 

    while($row = mysqli_fetch_array($r)){
        array_push($result,array(
        'name'=>$row['name'],
        'url'=>$row['image']
        ));
    }

    echo json_encode(array('result'=>$result));

    mysqli_close($con);

This is my config.java

package com.example.mdesigntemp;
import android.graphics.Bitmap;
public class ConfigChildItem {
public static String[] names;
public static String[] urls;
public static Bitmap[] bitmaps;

public static final String GET_URL = "http://www.kinandayu.com/image_content/getAllImage.php";
public static final String TAG_IMAGE_URL = "url";
public static final String TAG_IMAGE_NAME = "name";
public static final String TAG_JSON_ARRAY="result";

public ConfigChildItem(int i){
    names = new String[i];
    urls = new String[i];
    bitmaps = new Bitmap[i];
    }
}

The logcat is say nothing but I get forcestop when I open my activity, can anybody give a solution, thanks in advance for all answers

Please add more info to your question, we don't know what you doing or how you doing it to lead to the forcestop.

1. if its an activity issue please look at your manifest and make sure you added all your activities to it.

2. Please update the question and give more info and share your log