Calling layout from controller

home.php

<?php defined('BASEPATH') or exit('No direct script access allowed');
/**
* Home class
* Check /core/MY_Controller
*
* @author budy k
* @link www.facebook.com/teknosains
* @link www.teknosains.com
*
*/
class Home extends MY_Controller
{    
    //......
 
    /**
    * Detail Article
    * @param str slug
    */
    public function read($slug = null)
    {
        $article = $this->Home_model->fetchDetail($slug);

        //show 404 if no article found
        if (!$article) {
            show_404();
        }

        /**
        * meta data to send to the View.
        * add anything you want here
        */
        $data = [
            'meta' => [
                'title' => $article['title'],
                'Description' => trim(word_limiter(strip_tags($article['content']), 100))
            ],
            'article' => $article
        ];
        
        //Calling layout
        $this->materialLayout($data, 'home/read');
    }
    
}