如何在 swift 3 中使用 UIPrintInteractionController.print 设置要打印的页数？

Question

I'm using the UIPrintInteractionController to print a html from a UIWebView directly to an AirPrint printer. I would like to tell the UIPrinter that only the first page should be printed. How can I do this?

Here is my code which prints all pages:

let printer = UIPrinter(url: myURL)
let printerController = UIPrintInteractionController.shared

let printInfo = UIPrintInfo(dictionary: nil)
printInfo.jobName = "My print job name"
printInfo.outputType = .general
printerController.printInfo = printInfo

let printPageRenderer = MyCustomPageRenderer()
printPageRenderer.addPrintFormatter(myWebView.viewPrintFormatter(), startingAtPageAt: 0)

printerController.printPageRenderer = printPageRenderer
printerController.print(to: printer!) { (printerController, success, error) in
 
}

The code should be compatible with iOS 9.0.

Answer 1

There is numberOfPages property in UIPrintPageRenderer that you can override. Or you may just set the UIPrintInteractionController property showsPageRange to true .

For more reference please use see this link - https://developer.apple.com/documentation/uikit/uiprintpagerenderer/1621631-numberofpages