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List a collection of items in a horizontally scrolling view. A scaling factor controls the size of the items relative to the center.

We specialize in the designing and coding of custom UI for Mobile Apps and Websites.

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💡🏞 Inspired by Kevin Gautier shot

CocoaPods CocoaPods Twitter



  • iOS 12.0+
  • Xcode 10.2+
  • Swift 5.0+


Just add the CircularCarousel directory to your project.

or use CocoaPods with Podfile:

pod 'CircularCarousel'

or just drag and drop the CircularCarousel directory to your project


  1. Create a custom view that will be used as a carousel item. In this tutorial we will just use a blank UIView.

  2. Create a view controller or container view that handles datasource and delegate responses for the contained Carousel.

	final class ContainerView : UITableViewCell, CircularCarouselDataSource, CircularCarouselDelegate {


2.1) Add a reference to the carousel control and the selection of a delegate and datasource to your Carousel control.

	private weak var _carousel : CircularCarousel!
    @IBOutlet var carousel : CircularCarousel! {
        set {
            _carousel = newValue
            _carousel.delegate = self
            _carousel.dataSource = self
        get {
            return _carousel
  1. Implement the DataSource and Delegate functions. Some of the key functions are listed below.

3.1) Datasource

	func numberOfItems(inCarousel carousel: CircularCarousel) -> Int {
        return /* Number of carousel items */
	func carousel(_: CircularCarousel, viewForItemAt indexPath: IndexPath, reuseView view: UIView?) -> UIView {
    	var view = view as? UIVIew

    	if view == nil {
    		view = UIView(frame: CGRect(x: 0, y: 0, width: 50, height: 50))

    	return view
	func startingItemIndex(inCarousel carousel: CircularCarousel) -> Int {
        return /* Insert starting item index */

3.2) Delegate

Select how you want the carousel to operate based on the control variables specified below :

	func carousel<CGFloat>(_ carousel: CircularCarousel, valueForOption option: CircularCarouselOption, withDefaultValue defaultValue: CGFloat) -> CGFloat {
	    switch option {
        case .itemWidth:
            return /* Select item width for carousel */
        /*  Insert one of the following handlers :
			case spacing
			case fadeMin
			case fadeMax
			case fadeRange
			case fadeMinAlpha
			case offsetMultiplier
			case itemWidth
			case scaleMultiplier
			case minScale
			case maxScale
            return defaultValue

Handle the selection of a particular carousel item :

	func carousel(_ carousel: CircularCarousel, didSelectItemAtIndex index: Int) {
        /* Handle selection of the selected carousel item */

Handle will begin scrolling :

	func carousel(_ carousel: CircularCarousel, willBeginScrollingToIndex index: Int) {


To handle spacing between items depending on their offst from the center :

	func carousel(_ carousel: CircularCarousel, spacingForOffset offset: CGFloat) -> CGFloat {        
        return /* Based on the offset from center, adjust the spacing of the item */

That's it, the Carousel is good to go!

📄 License

Carousel is released under the MIT license. See LICENSE for details.

This library is a part of a selection of our best UI open-source projects.

If you use the open-source library in your project, please make sure to credit and backlink to

📱 Get the Showroom App for iOS to give it a try

Try this UI component and more like this in our iOS app. Contact us if interested.

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