我正在开发一个应用程序,需要通过AirPrint直接从iPad生成和打印访问者通行证.
我到处寻找如何打印视图,但我只能找到如何打印文本,webKit和mapKit.
有没有办法打印整个视图？如果没有,打印访客通行证将是一个很好的解决方案,它将是纯文本,方框和照片.谢谢.
我通过修改此处的代码找到了我的问题的答案：
AirPrint contents of a UIView
//create an extension to covert the view to an image
extension UIView {
func toImage() -> UIImage {
UIGraphicsBeginImageContextWithOptions(bounds.size,false,UIScreen.mainScreen().scale)
drawViewHierarchyInRect(self.bounds,afterScreenUpdates: true)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image
}
}
//In your view controller
@IBAction func printButton(sender: AnyObject) {
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.outputType = UIPrintInfoOutputType.General
printInfo.jobName = "My Print Job"
// Set up print controller
let printController = UIPrintInteractionController.sharedPrintController()
printController.printInfo = printInfo
// Assign a UIImage version of my UIView as a printing iten
printController.printingItem = self.view.toImage()
// Do it
printController.presentFromRect(self.view.frame,inView: self.view,animated: true,completionHandler: nil)
}
