let modal = ModalController()
modal.contentMake(wid: 300.0, hgt: 300.0, bgColor: UIColor.blackColor(), cornerRad: 15)
presentViewController(modal, animated: true, completion: nil)

...
let modal = ModalController()
modal.content = myCustomView
presentViewController(modal, animated: true, completion: nil)

let modal = ModalController()
modal.contentMake(wid: 300.0, hgt: 300.0, bgColor: UIColor.whiteColor(), cornerRad: 15)
/* Start Customizations */
let label = UILabel(frame: modal.content.bounds)
label.text = "Hello World"
modal.content.addSubview(label)
/* End Customizations */
presentViewController(modal, animated: true, completion: nil)

let modal = ModalController()
modal.contentMake(wid: 300.0, hgt: 300.0, bgColor: UIColor.blackColor(), cornerRad: 15)
/* Start Customizations */
modal.closeOnContentTap = true
modal.closeOnBGTap = false
/* End Customizations */
presentViewController(modal, animated: true, completion: nil)

modal.backgroundDarkness = 0.4

modal.onClose = { ()->Void in
    // perform close logic before modal gets dismissed
}

modal.onCloseCompletion = { ()->Void in
    // perform close logic after modal gets dismissed
}

modal.onViewDidLayoutSubviews = { (modalBGView,contentView)->Void in
    contentView.frame = CGRect(x: 0, y: 0, width: modalBGView.frame.size.width, height: modalBGView.frame.size.height/2)
}

@IBOutlet var content: UIView!

let modal = ModalController()
modal.contentMake(wid: 300.0, hgt: 300.0, bgColor: UIColor.whiteColor(), cornerRad: 15)
let label = UILabel(frame: modal.content.bounds)
label.text = "Hello World"
label.textAlignment = .Center
label.font = UIFont.systemFontOfSize(30)
modal.content.addSubview(label)
presentViewController(modal, animated: true, completion: nil)