VHCarrouselCollectionView

VHCarrouselCollectionView is an horizontal UICollectionView written in Swift which loops infinitely.

Features

• [x] Horizontal Infinitely Looped UICollectionView
• [x] Complete Documentation

Requirements

Platform	Minimum Swift Version	Installation
iOS 10.0+	4.0	Swift Package Manager, CocoaPods

Installation

Swift Package Manager

The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the swift compiler.

Once you have your Swift package set up, adding VHCarrouselCollectionView as a dependency is as easy as adding it to the dependencies value of your Package.swift.

dependencies: [
    .package(
        url: "https://github.com/vidalhara/VHCarrouselCollectionView.git", 
        .upToNextMajor(from: "1.0.1")
    )
]

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate VHCarrouselCollectionView into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'VHCarrouselCollectionView', '~> 1.0.1'

Usage

You should call following functions in order to work your carrousel.

@IBOutlet weak var collectionView: VHCarrouselCollectionView!

extension ViewController: UICollectionViewDelegate {
    func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
        collectionView.scrollViewWillBeginDragging()
    }

    func scrollViewWillEndDragging(
        _ scrollView: UIScrollView, 
        withVelocity velocity: CGPoint, 
        targetContentOffset: UnsafeMutablePointer<CGPoint>
    ) {
        collectionView.scrollViewWillEndDragging(
            with: velocity, targetContentOffset: targetContentOffset
        )
    }

    func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
        collectionView.scrollViewDidEndScrollingAnimation()
    }
}

Configure Example

let source: [UIColor] = [.purple, .green, .blue]

collectionView.delegate = self
collectionView.dataSource = self
collectionView.carrouselDelegate = self
collectionView.sourceMultiplier = .triple

collectionView.configureTimer(interval: 2, animated: true)
collectionView.enableTimer()

extension ViewController: VHCarrouselCollectionViewDelegate {
    func vhCarrouselView(
        _ carrouselView: VHCarrouselCollectionView, 
        centeredSourceIndexPath sourceIndexPath: IndexPath
    ) {
        debugPrint("\(sourceIndexPath.item)")
    }
}

extension ViewController: UICollectionViewDataSource {

    func collectionView(
        _ collectionView: UICollectionView, numberOfItemsInSection section: Int
    ) -> Int {
        return source.count
    }

    func collectionView(
        _ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath
    ) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(
            withReuseIdentifier: "Cell", for: indexPath
        ) as! LocalCVC

        let sourceIndex = indexPath.vhCarrouselSourceIndexPath(for: collectionView).item
        cell.backgroundColor = source[sourceIndex]
        return cell
    }
}

extension ViewController: UICollectionViewDelegateFlowLayout {

    func collectionView(
        _ collectionView: UICollectionView,
        layout collectionViewLayout: UICollectionViewLayout,
        sizeForItemAt indexPath: IndexPath
    ) -> CGSize {
        return .init(
            width: collectionView.frame.width * 0.8, 
            height: collectionView.frame.height
        )
    }

    func collectionView(
        _ collectionView: UICollectionView,
        layout collectionViewLayout: UICollectionViewLayout,
        minimumLineSpacingForSectionAt section: Int
    ) -> CGFloat {
        return 10
    }
}

License

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