UIPrintInteractionController failure on iOS 9.3

Subject: UIPrintInteractionController failure on iOS 9.3
From: Luca Ciciriello <email@hidden>
Date: Mon, 25 Apr 2016 11:59:48 +0200

Hi All.

In my app I’ve a method used to print some text on a printer.

My code is

	let printController = UIPrintInteractionController.sharedPrintController()

        let printInfo = UIPrintInfo(dictionary:nil)

        printInfo.outputType = UIPrintInfoOutputType.General

        printInfo.jobName = "note"

        printController.printInfo = printInfo

        func textFormatter(text: String) -> String

{

            return text.stringByReplacingOccurrencesOfString("\n", withString: "<BR>")

}

        let formatter = UIMarkupTextPrintFormatter(markupText: textFormatter(self.testo.text))

        formatter.contentInsets = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)

        printController.printFormatter = formatter

        if UIDevice.currentDevice().userInterfaceIdiom == .Pad

{

            printController.presentFromRect(self.printBtn.frame, inView:self.view, animated:true, completionHandler: nil)

}

        else

{

            printController.presentAnimated(true, completionHandler: nil)

}

This code works properly in iOS 8.3 but my app crash in iOS 9.3 when in the code above I call

printController.presentFromRect(self.printBtn.frame, inView:self.view, animated:true, completionHandler: nil)

I’ve noticed that the app doesn’t crash if the self.testo.text is an empty string. This behaviour is the same on the simulator and on a real device.

Where is my mistake? Any Idea?

Regards

Luca.

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