How to use C4 in a traditional UIViewController

[omarojo]

I wonder how could I use C4 views and interactions in a project that already has UIViewControllers or any other class for that matter.

C4 is really good, but it seems it always needs to run on a CanvasController with the setup() function, etc...

Lets say I am working in a class MyLoginViewController : LoginViewController ...
How can I use a C4View in it or do interactions like drawings and stuff that C4 allows to do ?

[travis]

You can integrate C4 right into any UIViewController.

The only "real" convenience of the CanvasController is the setup method which is essentially just:

open override func viewDidLoad() {
    canvas.backgroundColor = C4Grey
    ShapeLayer.disableActions = true
    self.setup()
    ShapeLayer.disableActions = false
}

And

open override var prefersStatusBarHidden: Bool {
    return true
}

Also... the use of the word canvas is a convenience. You can alway do: vc.view.add(obj)

AAAAAAND there are extensions to UIView that lets you do add(obj) so you can keep consistent with:

view.add(uiview)
view.add(shape)

... instead of having to do:

view.addSubview(shape.view)