Data.php

<?php

namespace BDC\SimpleNews\Helper;

use Magento\Framework\App\Helper\AbstractHelper;
use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\App\Helper\Context;
use Magento\Store\Model\ScopeInterface;

class Data extends AbstractHelper
{
   const XML_PATH_ENABLED      = 'simplenews/general/enable_in_frontend';
   const XML_PATH_HEAD_TITLE   = 'simplenews/general/head_title';
   const XML_PATH_LASTEST_NEWS = 'simplenews/general/lastest_news_block_position';

   /**
     * @var \Magento\Framework\App\Config\ScopeConfigInterface
     */
    protected $_scopeConfig;

    /**
     * @param Context $context
     * @param ScopeConfigInterface $scopeConfig
     */
    public function __construct(
       Context $context,
       ScopeConfigInterface $scopeConfig ) {
       parent::__construct($context);
       $this->_scopeConfig = $scopeConfig;
    }

   /**
     * Check for module is enabled in frontend
     *
     * @return bool
     */
   public function isEnabledInFrontend($store = null)
   {
      return $this->_scopeConfig->getValue(
         self::XML_PATH_ENABLED,
         ScopeInterface::SCOPE_STORE
      );
   }

   /**
     * Get head title for news list page
     *
     * @return string
     */
   public function getHeadTitle()
   {
      return $this->_scopeConfig->getValue(
         self::XML_PATH_HEAD_TITLE,
         ScopeInterface::SCOPE_STORE
      );
   }

   /**
     * Get lastest news block position (Left, Right, Disabled)
     *
     * @return int
     */
   public function getLastestNewsBlockPosition(){
      return $this->_scopeConfig->getValue(
         self::XML_PATH_LASTEST_NEWS,
         ScopeInterface::SCOPE_STORE
      );
   }
}