GET Magento2 category product images

Question

How to get product images of a specific category in magento2?

Answer 1

Following code might help you.

protected $_productCollectionFactory;
protected $_categoryFactory;
protected $_imageHelper;

public function __construct(
    \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,
    \Magento\Catalog\Model\CategoryFactory $categoryFactory,
    \Magento\Framework\View\Element\Template\Context $context,
    \Magento\Catalog\Helper\Image $imageHelper
) {
    $this->_categoryFactory = $categoryFactory;
    $this->_productCollectionFactory = $productCollectionFactory;
    $this->__imageHelper = $imageHelper;
    parent::__construct($context);
}

public function getProductCollection()
{
    $categoryId = 'yourcategoryid';
    $category = $this->_categoryFactory->create()->load($categoryId);
    $collection = $this->_productCollectionFactory->create();
    $collection->addAttributeToSelect('*');
    $collection->addCategoryFilter($category);
    $collection->addAttributeToFilter('visibility', \Magento\Catalog\Model\Product\Visibility::VISIBILITY_BOTH);
    $collection->addAttributeToFilter('status',\Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED);
    return $collection;
}

public function getImageUrl(){
    $collection = $this->getProductCollection();

    foreach ($collection as $product){

        // small image 
        echo $this->_imageHelper->init($product, 'product_page_image_small')->getUrl();

        // medium image 
        echo $this->_imageHelper->init($product, 'product_page_image_medium')->constrainOnly(true)->keepAspectRatio(true)->keepFrame(false)->getUrl();

        // large image 
        echo $this->_imageHelper->init($product, 'product_page_image_large')->constrainOnly(true)->keepAspectRatio(true)->keepFrame(false)->getUrl();


    }

}

PS: I haven't tested it but it should work as per my experience.