How to write apps for iOS 12 in Xcode 11?

Question

I just installed Xcode on my new MacBook. The new starting templates for Swift iOS require iOS SDK 13+ (ie they either need UISceneDelegate or SwiftUI). Is there a way to create a new app using a built-in template that is compatible with iOS 12?

Answer 1

Another option is to use some simple template or example project.

https://github.com/PacktPublishing/The-10-Day-iPhone-App-Bootcamp---New-iOS-12-and-Xcode/tree/master/S01

You need to download that zip ,and open project file "Swift Fun.xcodeproj" with xCode 11

I use this to start and learn, this may help you.

Answer 2

The steps to getting to an iOS 12/13 app:

1) Change deployment target to iOS 12.

2) Replace the AppDelegate's methods with what they ought to have for iOS 12 development. Also add this:

   var window: UIWindow?

3) Remove SceneDelegate.

4) Remove Application Scene Manifest in your info.plist.

Originally answered here