轮播图片未加载-Xcode Swift

Question

我正在尝试在Xcode中使用iCarousel来显示图像。但是，图像本身并未加载。

我已经实现了数据源协议，将图像加载到一个数组中，然后使用该数组尝试填充轮播

import UIKit
import CoreImage

class NewPost2ViewController: UIViewController {

    struct Filter {
        let filterName: String
        var filterEffectValue: Any?
        var filterEffectValueName: String?

        init(filterName: String, filterEffectValue: Any?, filterEffectValueName: String?) {
            self.filterName = filterName
            self.filterEffectValue = filterEffectValue
            self.filterEffectValueName = filterEffectValueName
        }

    }

    //MARK: - UIObjects
    @IBOutlet weak var containerView: UIView!
    @IBOutlet weak var originalImage: UIImageView!
    @IBOutlet weak var imageToFilter: UIImageView!
    @IBOutlet weak var carouselView: iCarousel!


    //will hold filtered images
    var filterImages: [UIImage] = [UIImage]()


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.

        loadFilterImages()
        print("NUM PHOTOS: \(filterImages.count)")
        carouselView.type = .linear
        carouselView.reloadData()

    }

    private func applyFilterTo(image: UIImage, filterEffect: Filter) -> UIImage? {

        //get ref to core graphics image
        //get ref to graphics context by creating one
        guard let cgImage = image.cgImage, let openGLContext = EAGLContext(api: .openGLES3) else {
            return nil
        }

        //create core image context feeding it the graphics context
        let context = CIContext(eaglContext: openGLContext)

        let ciImage = CIImage(cgImage: cgImage)
        let filter = CIFilter(name: filterEffect.filterName)
        filter?.setValue(ciImage, forKey: kCIInputImageKey)

        //look for any custom filter effects that we may have
        if let filterEffectValue = filterEffect.filterEffectValue, let filterEffectValueName = filterEffect.filterEffectValueName {
            filter?.setValue(filterEffectValue, forKey: filterEffectValueName)
        }


        //render the image with a filter
        var filteredImage: UIImage?

        if let output = filter?.value(forKey: kCIOutputImageKey) as? CIImage, let cgiImageResult = context.createCGImage(output, from: output.extent) {
            filteredImage = UIImage(cgImage: cgiImageResult)
        }

        return filteredImage
    }


    @IBAction func applySepia(_ sender: Any) {


        guard let image = originalImage.image else {
            return
        }

       originalImage.image = applyFilterTo(image: image, filterEffect: Filter(filterName: "CISepiaTone", filterEffectValue: 0.70, filterEffectValueName: kCIInputIntensityKey) )
    }


    func loadFilterImages() {
        for num in 0..<8 {
            guard let newImage = UIImage(named: "saladImage") else {
                print("ERROR LOADING IMAGE")
                return
            }
            filterImages.append(newImage)
        }
    }


    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}

//MARK: - Carousel Methods
extension NewPost2ViewController: iCarouselDelegate, iCarouselDataSource {

    func numberOfItems(in carousel: iCarousel) -> Int {
        print("CAROUSEL COUNT \(filterImages.count)")
        return filterImages.count
    }

    func carousel(_ carousel: iCarousel, viewForItemAt index: Int, reusing view: UIView?) -> UIView {

        //Create a UIView
        let tempView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

        //Create a UIImageView
        let frame = CGRect(x: 0, y: 0, width: 100, height: 100)
        let imageView = UIImageView()
        imageView.frame = frame
        imageView.contentMode = .scaleAspectFit

        //Set the images of food to the imageView and add it to the temp view
        imageView.image = filterImages[index]
        tempView.addSubview(imageView)

        return tempView
    }

}

我收到此警告，但不确定是否与之相关： “不允许在取消分配时尝试加载视图控制器的视图，这可能导致未定义的行为”