Get URL of the static content folder (for backend)

Question

Inside a block class which is being used to render a button in the admin panel, how to get the URL of the static content folder? Specifically, URL of the folder with images?

For example, in Company_Helloworld module an image for a custom button is located here:

app/code/Company/Helloworld/view/adminhtml/web/images/

Test 1

I tried this:

$url = $this->getViewFileUrl('Company_Helloworld::images/icon.png');

But it tries to retrieve the image from the Magento/backend theme:

http://example.com/pub/static/adminhtml/Magento/backend/en_US/Company_Helloworld/images/icon.png

while the image is not there, image is actually in the module's folder:

app/code/Company/Helloworld/view/adminhtml/web/images/icon.png

Test 2

And this:

$url = $this->getViewFileUrl('images/icon.png');

But it also tries to retrieve the image from the Magento/backend theme, this time without module context:

http://example.com/pub/static/adminhtml/Magento/backend/en_US/images/icon.png

Is there any way to put the image in the module and not in the backend theme?

Answer 1

Try to use:

echo $block->getViewFileUrl('Company_Helloworld::yourImage.png'); 

As a second argument of

\Magento\Framework\View\Element\AbstractBlock::getViewFileUrl($fileId, array $params = [])

you can set an array of next parameters: "module", "_secure", "theme", "area" and "locale"

Answer 2

Try to use:

<?php
class ...

protected $_assetRepo;

public function __construct(
    ....
    \Magento\Framework\View\Asset\Repository $assetRepo,
    ....
) {
    ....
    $this->_assetRepo = $assetRepo;
    ....
}

Now, In you case module name is : Company_Helloworld and you want icon.png from images directory so

echo $this->_assetRepo->getUrl("Company_Helloworld::images/icon.png");

Hope this will help you.