iCarousel Swift 示例的编程实现

Posted 2023-03-10

【中文标题】iCarousel Swift 示例的编程实现

【英文标题】：Programmatic implementation of iCarousel Swift example

【发布时间】：2015-01-01 19:54:11

【问题描述】：

这是一个在 Swift 中实现 iCarousel 的 Storyboard 示例：https://github.com/nicklockwood/iCarousel/tree/master/Examples/Swift%20Example

特别是这个页面： https://github.com/nicklockwood/iCarousel/blob/master/Examples/Swift%20Example/SwiftExample/ViewController.swift

有人可以指导我如何以编程方式实现它（没有情节提要）吗？

【参考方案1】：

斯威夫特 3

private let HEIGHT_CAROUSEL: CGFloat = 100
        private func initiCarousel() 
            let carousel = iCarousel(frame: CGRect(x: 0, y: view.frame.height - HEIGHT_CAROUSEL, width: view.frame.width, height: HEIGHT_CAROUSEL))
            carousel.delegate = self
            carousel.dataSource = self
            view.addSubview(carousel)
        

    // MARK: - iCarouselDelegate
    extension YourNameViewController: iCarouselDataSource, iCarouselDelegate 
        func numberOfItems(in carousel: iCarousel) -> Int 
            return arrr.count ?? 0
        

        func carousel(_ carousel: iCarousel, viewForItemAt index: Int, reusing view: UIView?) -> UIView 
            var itemView: UIImageView
            itemView = UIImageView(frame: CGRect(x: 0, y: 0, width: HEIGHT_CAROUSEL, height: HEIGHT_CAROUSEL))
            itemView.contentMode = .scaleAspectFill
            if let image = url 
                itemView.setImageWithIndicator(imageUrl: image)
            

            return itemView
        

        func carousel(_ carousel: iCarousel, valueFor option: iCarouselOption, withDefault value: CGFloat) -> CGFloat 
            if (option == .spacing) 
                return value * 1.1
            
            return value
        
    

【参考方案2】：

使用以下代码使用 swift 以编程方式实现 iCarousel：

override func viewDidLoad()

    super.viewDidLoad()
    carousel = iCarousel(frame: CGRectMake(0, 0, 200, 200))
    carousel.center = view.center
    carousel.dataSource = self
    carousel.delegate = self