MultipleImageView

// swift-tools-version:5.0
import PackageDescription

let package = Package(
    name: "SampleApp",
    dependencies: [
        .package(name: "MultipleImageView",
                 url: "https://github.com/nnsnodnb/MultipleImageView.git",
                 from: "0.2.0")
    ],
    .targets: [
        .target(name: "SampleApp,
                dependencies: ["MultipleImageView"])
    ]
)

import MultipleImageView

final class SomeView: UIView, MultipleImageViewDelegate {

    func configure() {
        let imageView = MultipleImageView(frame: .zero)
        addSubview(imageView)
        // Autolayout
        imageView.sources = [
            .uiimage(anyImage),
            .url(anyURL),
            .custom { imageView in
                // something fetch image
                imageView.image = image
            }
        ]
        imageView.delegate = self
    }

    // MARK: - MultipleImageViewDelegate
    func multipleImageViewShouldGetImage(_ imageView: UIImageView, sourceForURL url: URL, index: Int) {
        // Your project's image fetch & cache algorithm.
    }

    func multipleImageViewDidSelect(_ imageView: UIImageView, index: Int) {
    }
}