Add css and js in Controller - prestashop 1.7

Add CSS in controller.

//  loaded css and js in module controller

public function setMedia() {

parent::setMedia();

$this->context->controller->registerStylesheet(‘affiliatestyle-css’,’modules/’.$this->module->name.’/css/affiliatestyle.css’,[‘media’ => ‘all’, ‘priority’ => 0]);

$this->context->controller->registerJavascript(‘sendtoafriend-js’,modules/’.$this->module->name.’/’sendtoafriend.js’,[‘position’ => ‘bottom’, ‘priority’ => 0]);

}

Add css and js in hook (header.Footer)

$this->context->controller->registerJavascript(‘sendtoafriend-js’,$this->_path.’/css/js/sendtoafriend.js’,[‘position’ => ‘bottom’, ‘priority’ => 0]);

$this->context->controller->registerStylesheet(‘sendtoafriend-css’,$this->_path.”/css/sendtoafriend.css’,[‘position’ => ‘bottom’, ‘priority’ => 0]);

Another way you can add csss and js in displayheader hook in module

 public function hookDisplayHeader($params)
    {

      $this->context->controller->addCSS($this->_path.'css/xyz.css', 'all');
      $this->context->controller->addJS($this->_path.'js/xyz.js');
   }