how to use Objective-C project in my Swift project

Question

Note: I know How to call Objective-C code from Swift, but I don\'t know below,

I want to use this EsptouchForIOS\'s Demo in my project. The demo is write in OC, it has a

Answer 1

I have never tried to use objective-c from swift project. But I normally used swift classes from my objective-c project. I usually follow this instructions https://developer.apple.com/library/content/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html from apple developer website.