是否有地方可以放置类别导入语句，以便所有类都能看到它？ [英] Is there a place to put a category import statement so all classes see it?

问题描述

我有一个UIColor的Objective-C类别，我想在项目的任何地方导入。但是，不是将#import用于每个需要它的类，我被告知有一种方法可以设置它，所以所有类都可以看到它。有谁知道这是如何实现的？

I have an Objective-C category of UIColor that I would like to "import" everywhere in my project. But instead of using the #import to every class that needs it I was told there was a way to set it up so all classes can see it. Anyone know how this is accomplished?

提前致谢，
Rob

Thanks in advance, Rob

推荐答案

将该导入添加到项目中的预编译头文件（* .pch）中 - 这样它将自动导入到任何实现文件中。

Add that import to the precompiled header file (*.pch) in your project - that way it will be imported to any implementation file automatically.

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