Does State prevent redrawing the view
Asked on 09/25/2024
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In the session titled "SwiftUI essentials," it is explained that SwiftUI is state-driven, meaning that when your view's state changes, SwiftUI automatically updates the UI. This is achieved by maintaining a representation of the user interface behind the scenes. When data changes, new view values are created and given to SwiftUI, which then determines how to update its outputs.
When a view's state changes, SwiftUI calls the view's body again, which results in a new view being generated. This means that the view is effectively redrawn, but SwiftUI optimizes this process to ensure efficient updates. Therefore, while state changes do trigger a redraw of the view, SwiftUI manages this efficiently to minimize unnecessary updates.
For more details, you can refer to the session SwiftUI essentials (08:50).
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