如何使用打印按钮打印已在QLPreviewController中打开的PDF文件？
[英]How to print PDF file already opened in QLPreviewController using print button?
问题描述
I get binary array then convert it and save in Documents folder and then showed in QLPreviewController. 
我得到二进制数组，然后将其转换并保存在Documents文件夹中，然后在QLPreviewController中显示。 I have seen the right button on the tool bar of QLPreviewController. 我已经在QLPreviewController工具栏上看到了右键。
I want to print that is in the preview right now. 我想立即打印预览中的内容。 But when i tab error occurs 但是当我出现制表错误时
*** Assertion failure in -[UIDocumentInteractionController setURL:], /SourceCache/UIKit_Sim/UIKit-2380.17/UIDocumentInteractionController.m:960
Also please guide me about printing that document. 另外，请指导我有关打印该文档的信息。 I have read about UIPrintInteractionController. 我已经阅读了有关UIPrintInteractionController的信息。
1 个解决方案
解决方案1
0 已采纳 2013-09-13 05:11:47
Why this Error occurs because you have set the URL wrong. 为什么会发生此错误，因为您将URL设置错误。 You are setting url like that; 您正在像这样设置网址；
/Users/akrama2/Library/Application%20Support/iPhone%20Simulator/6.1/Applications/59356D13-C021-431F-A5D2-B8CD16E2B301/Documents/Application_Report.pdf
Where as UIDocumentationController task URL as: 其中UIDocumentationController的任务URL为：
file://localhost/Users/akrama2/Library/Application%20Support/iPhone%20Simulator/6.1/Applications/59356D13-C021-431F-A5D2-B8CD16E2B301/Documents/Application_Report.pdf
This minor mistake will made you mad ;) 这个小错误会让你生气；）
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