I’m thinking about learning some Objective C on a Mac (my IDE will be xcode). I was wondering if xcode uses any Mac only libraries, because I want to be able to publish stuff I make in windows?
Short version: can I use projects written in objective c on xcode in windows?
Short answer: No.
There are tools and libraries you can use that will let you run Obj-C on Windows. Cocoa is Apple’s library collection and doesn’t run on Windows, but GNUStep and Cocotron are alternatives you can use. They don’t have all the features of Cocoa.