presentViewController black background instead of transparent

Question

I have a view that I wish to present to the user in the standard way (sliding up from the bottom of the screen). About half this view is a transparent background and the bot

Answer 1

Using SWIFT 4, just add this code to the view controller you want to have a transparent background.

override func viewDidLoad()
{
    super.viewDidLoad()
    self.modalPresentationStyle = .overFullScreen
    self.view.backgroundColor = UIColor.clear

}