ViewController Dependency Injection

ExampleViewController.swift

public class ExampleViewController: UIViewController {
    var dependableService: DependableService

    @IBOutlet var someTextLabel: UITextLabel!

    class func loadFromStoryboard(
        dependableService: DependableService) -> ExampleViewController {
        let controller = UIStoryboard(name:"Main", bundle:NSBundle(forClass:self))
            .instantiateViewControllerWithIdentifier("ExampleViewController")
            as! ExampleViewController

        controller.dependableService = dependableService

        return controller
    }

    required public init?(coder aDecoder: NSCoder) {
        self.dependableService = AppEnvironment.sharedEnvironment.dependableService

        super.init(coder:aDecoder)
    }
}