My client is asking for creating the iPhone app using Objective C instead of Swift. I know this is not a good idea. But I wonder can I write Objective C in XCode 10. Can someone please guide me the requirements for this. I mean which version of OS and XCode is required for Objective C coding.
Objective C remains fully supported by Apple and there are a number of situations where Swift has not been fully thought out. That’s why Swift 5 is just being released.
Kinda like how so many people complain about C++ but just about every foundational application - operating systems, compilers, drivers - are written in C/C++.
ALL versions of XCode, for the foreseeable future will support Objective C.