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我正在使用以下代码来打印东西:

let printInfo = UIPrintInfo(dictionary:nil)
printInfo.outputType = .General
printInfo.jobName = "PrintImage"
let printController = UIPrintInteractionController.sharedPrintController()
printController.printInfo = printInfo
printController.printingItem = myImageView.image
printController.presentFromRect(button.frame, inView: self.view, animated: true, completionHandler: nil)

有没有办法让用户在输出类型(.GrayScale.Generalie)之间进行选择?

我试过printInfo.outputType = [.General, .GrayScale]了,但没有奏效......

提前致谢 :)

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