Prompt Title: Download and Print PDF (Kotlin, Swift)

Here's some sample code in Kotlin for Android to download a PDF file and send it to the print preview:

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val pdfUrl = "https://example.com/sample.pdf"
val request = DownloadManager.Request(Uri.parse(pdfUrl))
val downloadManager = getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager
val downloadId = downloadManager.enqueue(request)

val query = DownloadManager.Query().apply {
    setFilterById(downloadId)
}
val cursor = downloadManager.query(query)

if (cursor.moveToFirst()) {
    val downloadStatus = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS))
    if (downloadStatus == DownloadManager.STATUS_SUCCESSFUL) {
        val pdfUri = Uri.parse(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI)))
        val printIntent = Intent(Intent.ACTION_VIEW).apply {
            setDataAndType(pdfUri, "application/pdf")
            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK
        }
        startActivity(Intent.createChooser(printIntent, "Print PDF"))
    }
}

And here's some sample code in Swift 5 for iOS to download a PDF file and send it to the print preview:

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let pdfUrl = URL(string: "https://example.com/sample.pdf")!
let session = URLSession.shared
let downloadTask = session.downloadTask(with: pdfUrl) { (url, response, error) in
    if let error = error {
        print("Error downloading PDF: \(error)")
        return
    }
    guard let pdfUrl = url else {
        print("Error getting PDF URL")
        return
    }
    let printController = UIPrintInteractionController.shared
    let printInfo = UIPrintInfo.printInfo()
    printInfo.outputType = .general
    printController.printInfo = printInfo
    printController.printingItem = pdfUrl
    printController.present(animated: true, completionHandler: nil)
}
downloadTask.resume()