问题
I am writing a tvOS app. Up to now I was developing the code as an OS X framework with a prototyping OS X app.
Now I would like to add the production tvOS app into the mix, keeping the OS X prototype. Which means I need the framework to be built both for OS X and tvOS. This should not be a problem in the principle, since I only use frameworks available on both platforms.
Is it possible to build a cross-platform framework? What settings do I use?
回答1:
Yes it's commonly done. Create a new Xcode target, targetting tvOS, and add the same source files as the OSX target.
If you need to include/exclude/change code or behaviour at compile time then you need to #import <TargetConditionals.h>.
来源：https://stackoverflow.com/questions/33920865/can-i-have-a-cross-platform-framework-for-os-x-and-tvos