How Do I Properly Use iCarouselOptions with iOS iCarousel?

Question

I'm creating an iOS app with Swift and am using iCarousel from GitHub (installed via cocoapods) and I'm not sure what I'm doing wrong, but I can't seem to get iCarouselOptions I set to have any effect...

What I want to do is simply change the spacing of the UIViews in my carousel (They are too close together and overlapping, which I don't want).

Here is my code:

    import UIKit
    import iCarousel

    class MiniGamesViewController: UIViewController, iCarouselDelegate, iCarouselDataSource {

        //Objects
        @IBOutlet weak var leaveMinigamesButton: UIButton!

        //Variables
        var carouselHeight : CGFloat!
        var selectionBallSize : CGFloat!

        override func viewDidLoad() {
            super.viewDidLoad()

            leaveMinigamesButton.layer.zPosition = 3
            carouselHeight = self.view.frame.size.height - 200
            selectionBallSize = self.view.frame.size.width * 0.65

            let carousel = iCarousel(frame: CGRect(
                x: 0,
                y: 100,
                width: self.view.frame.size.width,
                height: carouselHeight))

            carousel.perspective = -0.005
            carousel.centerItemWhenSelected = true
            carousel.decelerationRate = 0.9
            carousel.viewpointOffset = CGSize(width: 0, height: 0) //-selectionBallSize * 1.2

            carousel.dataSource = self
            carousel.type = .rotary
            view.addSubview(carousel)
        }

        override func viewDidAppear(_ animated: Bool) {
            setNeedsStatusBarAppearanceUpdate()
        }

        //This is how many items there will be in my rotary iCarousel
        func numberOfItems(in carousel: iCarousel) -> Int {
            return 6
        }

        //This defines each item or 'cell' in the iCarousel
        func carousel(_ carousel: iCarousel, viewForItemAt index: Int, reusing view: UIView?) -> UIView {
            let imageView: UIImageView
            if view != nil {
                imageView = view as! UIImageView
            } else {
                imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: selectionBallSize, height: selectionBallSize))
            }
            imageView.image = UIImage(named: "orbCyan")
            return imageView
        }

        func carousel(_ carousel: iCarousel, valueFor option: iCarouselOption, withDefault value: CGFloat) -> CGFloat {
            switch (option) {
            case .spacing: return value * 2
            case .radius: return 200
            case .fadeMinAlpha: return 0.5
            default: return value
            }
        }
}

Specifically the very bottom of my code is where the customization is supposed to take effect, but it doesn't seem to be making any changes when I run the app. At the moment, I'm only concerned with trying to space the UIViews in the carousel to be further apart.

Am I putting the iCarouselOptions function in the right place? Is it even being 'called' at all?

Thanks for your help!

Answer 1

Wouldn't you know it, as soon as I posted this question I found the issue haha (after a day of trying everything). Turns out I was missing the simple line:

carousel.delegate = self

underneath:

carousel.dataSource = self

That totally did the trick and it works now lol. I need a fresh set of eyes :P