Swiftui view lifecycle
Generated on 8/12/2024
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The SwiftUI view lifecycle is fundamentally different from traditional UI frameworks like UIKit. In SwiftUI, views are declarative, compositional, and state-driven. This means that SwiftUI views are not long-lived object instances that receive imperative commands over time. Instead, they are value types defined using structs, which describe what the current state of the UI should be.
When the state of a view changes, SwiftUI automatically updates the UI to reflect these changes, eliminating the need for boilerplate code and reducing update bugs. SwiftUI maintains a representation of the user interface behind the scenes, and as data changes, new view values are created and given to SwiftUI, which then determines how to update its outputs.
For more detailed information on SwiftUI's approach to views and state management, you can refer to the session SwiftUI essentials (00:01:47).
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