使用Swift打印本地PDF

我想在Swift中使用相同的例程.有人可以帮忙吗？

- (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];

    }

}

@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)
  }
}

取自http://nshipster.com/uiprintinteractioncontroller/