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It's always nice to play with the new SwiftUI APIs in iOS 18 and beyond. But how do you do that AND support iOS 17, iOS 16, iOS 15, etc... In this video I demonstrate how to use new SwiftUI Views and Modifiers while also provided backward compatibility for those on older versions of iOS using the #available keyword in Swift.

This technique also apples to watchOS, macOS, tvOS, and visionOS.

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Book and learning recommendations that help out the channel if you decide to purchase (Affiliate Links):

Antoine Van Der Lee - Going Indie Course:
https://courses.avanderlee.com/p/from-side-project-to-going-indie?affcode=2082304_o9res6rn

Mark Moeyken’s SwiftUI Books:
https://www.bigmountainstudio.com/a/fzc51

Paul Hudson's Hacking With Swift:
https://gumroad.com/a/762098803

RocketSim - Enhance Your Xcode Simulator:
https://gumroad.com/a/51797971/ftvbh

Objc.io Books (Thinking in SwiftUI & Advanced Swift):
https://gumroad.com/a/656585843

Timestamps:
0:00 - #available
0:17 - Basic UI & Minimum Target
1:12 - Use #available
2:33 - Multiple iOS Version Support
3:32 - iOS, macOS, watchOS etc…
4:19 - SwiftUI Modifiers - Part 1
6:48 - SwiftUI Modifiers - Part 2
8:15 - iOS Dev Portfolios

#swift #softwaredeveloper #iosdeveloper

Sean Allen

Learn how to maintain backward compatibility in SwiftUI applications while utilizing new features introduced in iOS 18. The post provides a step-by-step guide on using the #available directive to conditionally apply updates for different iOS versions, ensuring functionality across versions as old as iOS 14. It includes practical examples and suggestions for managing UI elements and modifiers based on iOS version checks.

SwiftUI - Support Prior iOS Versions - Backward Compatibility - #available