Kdjykuj

I want to resized image of subcategory. for that,
I added this code in .phtml file.I'm getting wrong path for image

<?php

    $objectManager = MagentoFrameworkAppObjectManager::getInstance();

    $catId = 3;  //Parent Category ID

    $subCategory = $objectManager->create('MagentoCatalogModelCategory')->load($catId);

    $subCats = $subCategory->getChildrenCategories();

    $_helper = $this->helper('MagentoCatalogHelperOutput');

    $_imagehelper = $this->helper('MagentoCatalogHelperImage');

    $count = 0;

?>

<div class="container homecat">

<div class="row">

    <?php 

        foreach ($subCats as $subcat) {

        $_category = $objectManager->create('MagentoCatalogModelCategory')->load($subcat->getId());

        $subcaturl = $subcat->getUrl();

        $_imgHtml = '';



        $subcaturl =  $_imagehelper->init($_category, 'image')->keepAspectRatio(TRUE)

            ->constrainOnly(TRUE)

            ->keepAspectRatio(TRUE)

            ->keepTransparency(TRUE)

            ->resize('256','128')

            ->getUrl();

        echo $subcaturl ."<br/>";

        $_imgHtml = '<img src="' . $subcaturl . '" />';

        $_imgHtml = $_helper->categoryAttribute($_category, $_imgHtml, 'image');

        echo $_imgHtml;

    } ?>

</div>

</div>

I am getting

http://Hostname/als2/pub/static/version1549014696/frontend/Theme/Name/en_US/Magento_Catalog/images/product/placeholder/.jpg

Create resize image by passing image URL

create Block file appcodeKetanResizeHelperImage.php

pass url and dimension

<?php

/**

 * Copyright © Magento, Inc. All rights reserved.

 * See COPYING.txt for license details.

 */









namespace KetanResizeHelper;



use MagentoFrameworkFilesystem;

use MagentoFrameworkUrl;

use MagentoFrameworkAppHelperAbstractHelper;

use MagentoFrameworkAppFilesystemDirectoryList;



class Image extends MagentoFrameworkAppHelperAbstractHelper {

    protected $scopeConfig;

    protected $storeManager;

    protected $messageManager;

    protected $_response;

    protected $_resourceConfig;

    protected $_responseFactory;

    protected $_url;

    protected $_filesystem;

    protected $_directory;

    protected $_imageFactory;

    public function __construct(

        MagentoFrameworkAppConfigScopeConfigInterface $scopeConfig,

        MagentoStoreModelStoreManagerInterface $storeManager,

        MagentoFrameworkMessageManagerInterface $messageManager,

        MagentoFrameworkAppResponseInterface $response,

        MagentoFrameworkAppConfigStorageWriterInterface $resourceConfig,

        MagentoFrameworkAppResponseFactory $responseFactory,

        MagentoFrameworkUrlInterface $url,

        MagentoFrameworkFilesystem $filesystem,

        MagentoFrameworkImageAdapterFactory $imageFactory

    )

    {

        $this->scopeConfig = $scopeConfig;

        $this->_storeManager=$storeManager;

        $this->messageManager=$messageManager;

        $this->_response=$response;

        $this->_resourceConfig=$resourceConfig;

         $this->_responseFactory = $responseFactory;

        $this->_url = $url;

        $this->_filesystem = $filesystem;

        $this->_directory = $filesystem->getDirectoryWrite(DirectoryList::MEDIA);

        $this->_imageFactory = $imageFactory;

    }

    public function imageResize(

    $src,

    $width=35,

    $height=35,

    $dir='resize/'

    ){

        if (!@getimagesize($src)) {

            $src = $this->_storeManager->getStore()->getBaseUrl().'pub/media/catalog/product/placeholder/'.$this->scopeConfig->getValue('catalog/placeholder/small_image_placeholder',MagentoStoreModelScopeInterface::SCOPE_STORE);

        }

        $absPath = $src;

        $imageResized = $this->_filesystem

        ->getDirectoryRead(DirectoryList::MEDIA)

        ->getAbsolutePath($dir).

        $this->getNewDirectoryImage($src);

        $imageResize = $this->_imageFactory->create();

        $imageResize->open($absPath);

        $imageResize->backgroundColor([255, 255, 255]);

        $imageResize->constrainOnly(TRUE);

        $imageResize->keepTransparency(TRUE);

        $imageResize->keepFrame(true);

        $imageResize->keepAspectRatio(true);

        $imageResize->resize($width,$height);

        $dest = $imageResized ;

        $imageResize->save($dest);

        $resizedURL= $this->_storeManager->getStore()

        ->getBaseUrl(MagentoFrameworkUrlInterface::URL_TYPE_MEDIA).

        $dir.$this->getNewDirectoryImage($src);

        return $resizedURL;

    }

    public function getNewDirectoryImage($src){

        $segments = array_reverse(explode('/',$src));

        $first_dir = substr($segments[0],0,1);

        $second_dir = substr($segments[0],1,1);

        return 'cache/'.$first_dir.'/'.$second_dir.'/'.$segments[0];

    }

}

In your phtml file

<?php foreach ($subcats as $subcat) { 

$_imgUrl = $subcat->getImageUrl(); ?>



<img src="<?php echo $this->helper('KetanresizeHelperImage')->imageResize($_imgUrl,'256','128','subtcat/'); ?>">



<?php } ?>

Please try this code for resized any images.

Using $objectManager :

$objectManager = MagentoFrameworkAppObjectManager::getInstance();



$directory = $objectManager->get('MagentoFrameworkFilesystemDirectoryList');

$storeManager = $objectManager->get('MagentoStoreModelStoreManagerInterface');

$fileSystem = $objectManager->get('MagentoFrameworkFilesystem');



$absolutePath = $objectManager->getDirectoryRead(MagentoFrameworkAppFilesystemDirectoryList::ROOT)->getAbsolutePath('pub/media/').$subcat->getUrl();

$imageResized = $objectManager->getDirectoryRead(MagentoFrameworkAppFilesystemDirectoryList::MEDIA)->getAbsolutePath('resized/'.$width.'/').$subcat->getUrl();         



//create image factory...

$imageResize = $objectManager->create('MagentoFrameworkImageAdapterFactory');       

$imageResize->open($absolutePath);

$imageResize->constrainOnly(TRUE);         

$imageResize->keepTransparency(TRUE);         

$imageResize->keepFrame(FALSE);         

$imageResize->keepAspectRatio(TRUE);         

$imageResize->resize($width,$height);  

//destination folder                

$destination = $imageResized;    

//save image      

$imageResize->save($destination);         



$resizedURL = $storeManager->getStore()->getBaseUrl(MagentoFrameworkUrlInterface::URL_TYPE_MEDIA).'resized/'.$width.'/'.$image;



echo $resizedURL;

Using Helper :

<?php

namespace VendorModuleHelper;



use MagentoStoreModelStoreManagerInterface;



class Imageresize extends MagentoFrameworkAppHelperAbstractHelper

{    

    protected $_filesystem ;

    protected $_imageFactory;

    protected $_storeManager;

    protected $_objectManager;



    public function __construct(            

        MagentoFrameworkFilesystem $filesystem,         

        MagentoFrameworkObjectManagerInterface $objectManager,

        StoreManagerInterface $storeManager,

        MagentoFrameworkImageAdapterFactory $imageFactory         

        ) {         

        $this->_filesystem = $filesystem;               

        $this->_imageFactory = $imageFactory;        

        $this->_objectManager = $objectManager;

        $this->_storeManager = $storeManager; 

        }



    // pass imagename, width and height

    public function resize($image, $width = null, $height = null)

    {

        $absolutePath = $this->_filesystem->getDirectoryRead(MagentoFrameworkAppFilesystemDirectoryList::ROOT)->getAbsolutePath('pub/media/').$image;



        $imageResized = $this->_filesystem->getDirectoryRead(MagentoFrameworkAppFilesystemDirectoryList::MEDIA)->getAbsolutePath('resized/'.$width.'/').$image;         

        //create image factory...

        $imageResize = $this->_imageFactory->create();         

        $imageResize->open($absolutePath);

        $imageResize->constrainOnly(TRUE);         

        $imageResize->keepTransparency(TRUE);         

        $imageResize->keepFrame(FALSE);         

        $imageResize->keepAspectRatio(TRUE);         

        $imageResize->resize($width,$height);  

        //destination folder                

        $destination = $imageResized;    

        //save image      

        $imageResize->save($destination);         



        $resizedURL = $this->_storeManager->getStore()->getBaseUrl(MagentoFrameworkUrlInterface::URL_TYPE_MEDIA).'resized/'.$width.'/'.$image;



        return $resizedURL;

    } 

}

?>

And then add following code in your .phtml

<?php $imgResized = $this->helper('VendorModuleHelperImageresize')->resize($subcaturl,277,180); ?>

 <a href="<?php echo $br['link']; ?>"><img src="<?php echo $imgResized; ?>" /></a>

Please check and let me know if any issue.