SwiftUI Data Flow with the new Observation - simpler SwiftUI code and improved performance in iOS 17

In this SwiftUI tutorial, I discuss the new data flow and observation features for iOS 17 and Xcode 15. We explore how these features can simplify your code and improve the performance of your apps. I walk through the process of converting existing code to use the new observation style and highlight potential pitfalls to avoid. You will learn about the new @Observable macro and the @State and @Bindable property wrappers. I also demonstrate how to optimize the data flow to only update views when necessary. Overall, the new observation features in Swift UI offer a more streamlined and efficient way to handle data flow in your apps. I am using Xcode 15 beta 3 ⬇️ get the project files at https://github.com/gahntpo/SwiftUIObservationProject Overview 00:00 introduction 02:39 demo project and problem with too many view updates 06:41 converting from observableObject to the new Observation 16:55 demo of Observation 21:41 how to write SwiftUI views for better view redraws 31:10 Summary If you liked what you learned and you want to see more, check out one of my courses! 👨‍💻 my SwiftUI course https://learn.swiftyplace.com/swiftui-layout-course 👨‍💻 my Core Data and SwiftUI course https://learn.swiftyplace.com/swiftui-core-data-mastery-course #SwiftUI #dataflow #observation