<?php

namespace Drupal\example\Controller;

use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\DependencyInjection\ContainerInterface;

class ExampleController extends ControllerBase
{
    protected $example_service;

    public function __construct($example_service)
    {
        $this->example_service = $example_service;
    }

    public static function create(ContainerInterface $container)
    {
        return new static(
            $container->get('example.example_service')
        );
    }

    public function homepage() {
        return array(
            '#markup' => t(
                'Hello @value!',
                array('@value' => $this->example_service->getValue())
            )
        );
    }
}