swiftUI @Observable
Generated on 11/8/2024
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In the session titled "SwiftUI essentials" at WWDC 2024, the concept of @Observable in SwiftUI is discussed in the context of state management. SwiftUI uses @Observable to track dependencies within views, ensuring that when data changes, the UI updates automatically. This is part of SwiftUI's state-driven architecture, which eliminates boilerplate code and reduces update bugs by maintaining a representation of the user interface behind the scenes.
For example, in the session, an observable pet class is created, and SwiftUI tracks any views that depend on this pet. When the pet's data changes, such as receiving an award, SwiftUI updates the view to reflect these changes. This is achieved by marking properties with @State or using @Binding for two-way data flow between views.
For more detailed information, you can refer to the SwiftUI essentials (09:43) session.
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