使用Swift打印本地PDF

我在Objective-C中有一个打印例程，用于打印本地PDF文件

我希望在Swift中使用相同的程序。有人能帮忙吗

- (void)printFile:(NSURL *)url {

    if ([UIPrintInteractionController .canPrintURL(url]) {

        UIPrintInteractionController *
            controller = [UIPrintInteractionController
            sharedPrintController()];

        controller.printingItem = url;

        UIPrintInfo *printInfo = [UIPrintInfo printInfo];
        PrintInfo.outputType = UIPrintInfoOutputGeneral;
        PrintInfo.jobName = [url lastPathComponent];
        controller.printInfo = printInfo;

        controller.showPageRange = YES;

        [controller presentAnimated:YES completionHandler:Null];

    }

}

---

这将为您指明正确的方向，按照链接了解它的作用

@IBAction func print(sender: UIBarButtonItem) {
   if UIPrintInteractionController.canPrintURL(imageURL) {
    let printInfo = UIPrintInfo(dictionary: nil)
    printInfo.jobName = imageURL.lastPathComponent
    printInfo.outputType = .Photo

    let printController = UIPrintInteractionController.sharedPrintController()!
    printController.printInfo = printInfo
    printController.showsNumberOfCopies = false

    printController.printingItem = imageURL

    printController.presentAnimated(true, completionHandler: nil)
  }
}

---

摘自swift 4.2的更新

@IBAction func printAction(_ sender: UIButton) {
        if let guide_url = Bundle.main.url(forResource: "RandomPDF", withExtension: "pdf"){
            if UIPrintInteractionController.canPrint(guide_url) {
                let printInfo = UIPrintInfo(dictionary: nil)
                printInfo.jobName = guide_url.lastPathComponent
                printInfo.outputType = .photo

                let printController = UIPrintInteractionController.shared
                printController.printInfo = printInfo
                printController.showsNumberOfCopies = false

                printController.printingItem = guide_url

                printController.present(animated: true, completionHandler: nil)
            }
        }
    }