QuickLook

quicklook.swift

// QLPreviewControllerDataSource

var medaUrl: URL?

// MARK: - Quick Look

func quickLook(_ url: URL) {
    medaUrl = url
    let previewController = QLPreviewController()
    previewController.dataSource = self
    present(previewController, animated: true)
}

func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
    return medaUrl! as QLPreviewItem
}

func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
    return 1
}