iOS Prefix.pch 最佳实践 [英] iOS Prefix.pch best practices

问题描述

我见过很多开发者在他们的 iOS 项目的 Prefix.pch 中添加了各种方便的宏.

I have seen many developers that add various convenience macros to the Prefix.pch of their iOS projects.

您建议(或不)将哪些内容添加到 iOS Prefix.pch 文件中?你的 Prefix.pch 是什么样的?

What do (or don't) you recommend adding to the iOS Prefix.pch file? What does your Prefix.pch look like?

推荐答案

Ewww...不要将宏放在 .pch 文件中！根据定义，.pch 文件是项目特定的预编译头文件.它真的不应该在项目的上下文之外使用，它真的不应该包含除了 #includes 和 #imports 之外的任何东西.

Ewww… don't put macros in a .pch file! A .pch file is, by definition, a project specific precompiled header. It really shouldn't be used beyond the context of the project and it really shouldn't contain anything but #includes and #imports.

如果你有一些宏并且你想在头文件之间共享，那么把它们放在它们自己的头文件中——Common.h 或其他——和 #include 那个 .pch 的开头.

If you have some macros and such that you want to share between headers, then stick 'em in a header file of their own — Common.h or whatever — and #include that at the beginning of the .pch.

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