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iPhone 4.2 airprint 打印作业失败

发布于 2024-11-03 20:42:03 字数 2463 浏览 4 评论 0原文

无论我选择哪台打印机，我都会收到“打印作业失败：不支持的文档格式“application/pdf”。

我尝试仅在 HP 打印机上进行打印。

我在代码中没有看到可以更改我正在使用UISimpleTextFormatter

来格式化字符串。

。

编辑：下面的代码直接来自 Miguel 的示例，唯一的区别是我尝试了标记格式化程序，看看它是否以与 application/pdf 不同的格式输出。

打印对话框中出现了 HP 打印机列表，我选择了一台打印机，但没有打印任何内容。在调试模式下，会记录顶部指定的错误。

除了UIPrintInfoOutputType.General之外，我还尝试了UIPrintInfoOutputType.GrayScale，但效果相同。

public partial class AppDelegate : UIApplicationDelegate
    {
        public override bool FinishedLaunching (UIApplication app, NSDictionary options)
        {
            window.MakeKeyAndVisible ();
            var button = UIButton.FromType (UIButtonType.RoundedRect);
            button.Frame = new RectangleF (100, 100, 120, 60);
            button.SetTitle ("Print", UIControlState.Normal);
            button.TouchDown += delegate {
                Print ();
            };
            window.AddSubview (button);
            return true;
        }

        void Print ()
        {
            var printInfo = UIPrintInfo.PrintInfo;
            printInfo.JobName = "Test :";
            printInfo.OutputType = UIPrintInfoOutputType.General;
            printInfo.JobName = "Test: My first Print Job";

            /*
            var textFormatter = new UISimpleTextPrintFormatter ("Once upon a time...") {
                StartPage = 0,
                ContentInsets = new UIEdgeInsets (72, 72, 72, 72),
                MaximumContentWidth = 6 * 72,               
            };
            */
            var htmlFormatter = new UIMarkupTextPrintFormatter("<html><body>Test : Hi There!!</body></html>");
            htmlFormatter.StartPage = 0;
            htmlFormatter.ContentInsets = new UIEdgeInsets (72, 72, 72, 72); // 1 inch margins
            htmlFormatter.MaximumContentWidth = 6 * 72;                 

            var printer = UIPrintInteractionController.SharedPrintController;
            printer.PrintInfo = printInfo;
            printer.PrintFormatter = htmlFormatter;
            printer.ShowsPageRange = true;
            printer.Present (true, (handler, completed, err) => {
                if (!completed && err != null){
                    Console.WriteLine ("error");
                }
            });
        }

        public override void OnActivated (UIApplication application)
        {
        }
    }

原文

No matter which printer I select, I get "Print-job failed: Unsupported document format "application/pdf".

I am trying to print on HP printers only.

I see no place in code to change the output type.

I am using UISimpleTextFormatter to format the string.

Not sure how to get around this one.

Edit : Code below is straight up from Miguel's example. with the only difference being, I tried out the markupformatter to see whether it gets output in a different format than application/pdf.

The print dialog comes up with the list of HP printers, I select a printer but nothing gets printed and in debug mode, the error specified at the top gets logged.

Other than UIPrintInfoOutputType.General, I have also tried UIPrintInfoOutputType.GrayScale but with the same effect.

public partial class AppDelegate : UIApplicationDelegate
    {
        public override bool FinishedLaunching (UIApplication app, NSDictionary options)
        {
            window.MakeKeyAndVisible ();
            var button = UIButton.FromType (UIButtonType.RoundedRect);
            button.Frame = new RectangleF (100, 100, 120, 60);
            button.SetTitle ("Print", UIControlState.Normal);
            button.TouchDown += delegate {
                Print ();
            };
            window.AddSubview (button);
            return true;
        }

        void Print ()
        {
            var printInfo = UIPrintInfo.PrintInfo;
            printInfo.JobName = "Test :";
            printInfo.OutputType = UIPrintInfoOutputType.General;
            printInfo.JobName = "Test: My first Print Job";

            /*
            var textFormatter = new UISimpleTextPrintFormatter ("Once upon a time...") {
                StartPage = 0,
                ContentInsets = new UIEdgeInsets (72, 72, 72, 72),
                MaximumContentWidth = 6 * 72,               
            };
            */
            var htmlFormatter = new UIMarkupTextPrintFormatter("<html><body>Test : Hi There!!</body></html>");
            htmlFormatter.StartPage = 0;
            htmlFormatter.ContentInsets = new UIEdgeInsets (72, 72, 72, 72); // 1 inch margins
            htmlFormatter.MaximumContentWidth = 6 * 72;                 

            var printer = UIPrintInteractionController.SharedPrintController;
            printer.PrintInfo = printInfo;
            printer.PrintFormatter = htmlFormatter;
            printer.ShowsPageRange = true;
            printer.Present (true, (handler, completed, err) => {
                if (!completed && err != null){
                    Console.WriteLine ("error");
                }
            });
        }

        public override void OnActivated (UIApplication application)
        {
        }
    }

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