在OS 10.12中使用PDF Kit添加pdf注释 [英] Add pdf annotation with PDF Kit in OS 10.12

问题描述

现在是最新的os10.12操作系统，可以显示PDF批注，但是现在我仍然有问题，我在PDFView-> mouseDragged之前记录了坐标信息，然后会自动调用PDFView-> drawPage函数，这函数，我将绘制NSBezierPath曲线以确定动态注释范围.但是现在在mouseDragged的过程中尚未调用drawPage:toContext函数.所以我看不到添加注释的动态曲线.我使用的刷新方法仍然不调用drawPage:toContext，只有打开pdf和滚动视图pdf套件才会调用drawPage:toContext.我想知道如何调用此函数.非常感谢您的帮助.

Now the latest os10.12 operating system, PDF annotation can be displayed, but now I still have a problem, I recorded coordinate information in PDFView ->mouseDragged before, and then automatically will invoke the PDFView->drawPage function, this function I will draw the NSBezierPath curve to determine the dynamic annotation bounds. but now in the process of mouseDragged has not been call the drawPage:toContext function. So I can't see the dynamic curve of adding annotation. I use the refresh method is still not invoke drawPage:toContext, only open pdf and scroll view pdf kit will invoke drawPage:toContext. I would like to know how to call this function. Thank you very much for your help.

推荐答案

PDFKit暂时被视为泡菜. https://forums.developer.apple.com/thread/60440

PDFKit sems to be in bit of a pickle at the moment. https://forums.developer.apple.com/thread/60440

我使用drawPage:inContext :(这是drawPage:toContext:涵盖的私有方法)取得了一些成功.尝试将drawPage:inContext:添加到类扩展中(ARC需要定义所有选择器)，然后查看是否被调用.

I have had some success using drawPage:inContext: (which is a private method covered by drawPage:toContext:). Try adding drawPage:inContext: to a class extension (ARC requires all selectors to be defined) and see if it gets called.

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