Magento – Get Cross sell items in cart page Programmatically in magento2

I am trying to get cross sell products in cart page programmatically.

Below code i have used in layout/checkout_cart_index.xml

   <referenceContainer name="content">
        <block class="Vendor\Module\Block\Customcross" name="cross.custom.details" after="-" template="Vendor_Module::cart/cart_products.phtml"/>
    </referenceContainer>

So I need to write one function in my Block file that should return cross sell items.

Right now i am using like below in block file.

 namespace Vendor\Module\Block;
 use Magento\Catalog\Api\ProductRepositoryInterface;
 use \Magento\Catalog\Block\Product\AbstractProduct;
 class Customcross extends \Magento\Framework\View\Element\Template
{    
protected $_storeManager;    
protected $_productCollectionFactory;
protected $_coreRegistry;  
protected $_urlInterface;
protected $_productloader;  
protected $_productRepository; 
protected $_productData; 
protected $_itemCollection;
protected $_catalogConfig;

public function __construct(
    \Magento\Backend\Block\Template\Context $context,
    \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,
    \Magento\Store\Model\StoreManagerInterface $storeManager,
    \Magento\Framework\Registry $coreRegistry,
    \Magento\Framework\UrlInterface $urlInterface,
    \Magento\Catalog\Model\ProductFactory $_productloader,
    ProductRepositoryInterface $productRepository,
    \Magento\Catalog\Model\Product $productData,
    \Magento\Catalog\Model\Config $catalogConfig
)
{    
    $this->_productCollectionFactory = $productCollectionFactory;  
    $this->_storeManager = $storeManager;
    $this->_coreRegistry = $coreRegistry;
    $this->_urlInterface = $urlInterface;
    $this->_productloader = $_productloader;
    $this->_productRepository = $productRepository;
    $this->_productData = $productData;
    $this->_catalogConfig = $catalogConfig;
    parent::__construct($context);
}

public function getCurrencySymbol() {
    return $this->_storeManager->getStore()->getBaseCurrency()->getCurrencySymbol();
}


public function getBasetUrl() {
   return $this->_storeManager->getStore()->getBaseUrl();
}

public function getCurrentUrl() {

return $this->_urlInterface->getCurrentUrl();
}

public function getStore()
{
    return $this->_storeManager->getStore();
}

public function getProductData($productId)
{
    $productObj = $this->_productData->load($productId);        
    return $productObj;

} 
protected function _prepareData()
{
    $product = $this->_coreRegistry->registry('product');
    /* @var $product \Magento\Catalog\Model\Product */

    $this->_itemCollection = $product->getCrossSellProductCollection()->addAttributeToSelect(
        $this->_catalogConfig->getProductAttributes()
    )->setPositionOrder()->addStoreFilter();

    $this->_itemCollection->load();

    foreach ($this->_itemCollection as $product) {
        $product->setDoNotUseCategoryId(true);
    }

    return $this;
}
 public function getItems()
 {
     return $this->_itemCollection;
 }
}

Anyone help me. How to get the cross sell items like this.