我正在尝试从WKWebView打印。网页和图片工作正常。
仅当我打印PDF文件时,页面都是空白的。
这是我用来创建printController的代码:
let printController = UIPrintInteractionController.sharedPrintController()
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.outputType = UIPrintInfoOutputType.General
printInfo.jobName = urlField.text!
printInfo.duplex = UIPrintInfoDuplex.LongEdge
let formatter: UIViewPrintFormatter = webView.viewPrintFormatter()
formatter.contentInsets = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
printController.printFormatter = formatter
printController.printInfo = printInfo
printController.showsPageRange = true
printController.showsNumberOfCopies = true
printController.presentFromBarButtonItem(printButton, animated: true, completionHandler: nil)
有人能帮助我走向正确的方向吗? 这个问题有解决方案吗?
答案 0 :(得分:8)
根据documentation,您可以使用printingItem
。
重要提示:在iPhone模拟器上有点滞后,看起来需要时间将pdf直接加载到Controller。
但您需要在print
方法
let printController = UIPrintInteractionController.sharedPrintController()
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.outputType = UIPrintInfoOutputType.General
printInfo.jobName = (webView.URL?.absoluteString)!
printInfo.duplex = UIPrintInfoDuplex.None
printInfo.orientation = UIPrintInfoOrientation.Portrait
//New stuff
printController.printPageRenderer = nil
printController.printingItems = nil
printController.printingItem = webView.URL!
//New stuff
printController.printInfo = printInfo
printController.showsPageRange = true
printController.showsNumberOfCopies = true
printController.presentFromBarButtonItem(printButton, animated: true, completionHandler: nil)