how to insert different shipping cost in carrier module development

[Tje123]

in my controller, i have cost value for shipping.i'm trying to send it to `getOrderShippingCost` function. but my cart showing shipping `free`

**Controller.php**    

$cost_val=120; //this value can be change
    
    include_once(_PS_MODULE_DIR_.'delivery_scheduler/delivery_scheduler.php');
    
        $DeliveryWeekSched=new delivery_scheduler();
    
        $DeliveryWeekSched->getOrderShippingCost($cost_val,$cost_val);

 

**delivery_scheduler.php**

 

  public function getOrderShippingCost($params, $shipping_cost)
        {
            if (Context::getContext()->customer->logged == true)
            {
                $id_address_delivery = Context::getContext()->cart->id_address_delivery;
                $address = new Address($id_address_delivery);
                return 100; // i want to return `$shipping_cost`
            }
            return $shipping_cost;
        }

when return `$shipping_cost` shipping value in cart showing `free`.when `100` return cart shipping value showing `100`.why is that?how to return my value?

Edited October 20, 2017 by Tje123 (see edit history)