import Presentr

func presentModalViewController() {
    let presenter: Presentr = {
        let width = ModalSize.fluid(percentage: 0.8)
        let height = ModalSize.fluid(percentage: 0.5)
        let center = ModalCenterPosition.customOrigin(origin: CGPoint(x: 0, y: UIScreen.main.bounds.height - 400))
        let customType = PresentationType.custom(width: width, height: height, center: center)
        let presenter = Presentr(presentationType: customType)
        presenter.transitionType = .coverVerticalFromTop
        presenter.dismissTransitionType = .coverVerticalFromTop
        presenter.roundCorners = true
        presenter.cornerRadius = 10
        presenter.backgroundColor = .black
        return presenter
    }()
    
    let viewController = ModalViewController()
    customPresenter.presentationType = .formSheet
    customPresenter.dismissOnSwipe = true
    customPresenter.backgroundColor = .white
    customPresenter.backgroundOpacity = 0.5
    
    present(viewController, animated: true, completion: nil)
}