Hello!I can't find any tutorials about developing iOS applications with Objective-C and storyboard which isn't retired.Can you tell me where I can find the recent tutorials about developing iOS applications with Objective-C and storyboard?Thanks.
How to learn to use storyboard and Objective-C to develop iOS applications
Is there a reason you cannot use a tutorial that uses Swift? Most of the Objective-C material is going to be 5+ years old. You are going to have to use Swift if you want to use learning material that is up to date.
I recommend going through the Hacking with Swift 100 day course that uses UIKit to learn iOS development. After going through the course, recreate the projects in Objective-C to learn how to make iOS apps in Objective-C.