Kuidas toimub andmete sidumine ja visuaalsete komponentide ühendamine SwiftUI-s?

In SwiftUI, the binding of data and visual components is achieved through the reactive data binding mechanism using property wrappers such as @State, @Binding, @ObservedObject, and @EnvironmentObject.

For example, @State is used for local state within a View. When the value changes, SwiftUI automatically redraws the corresponding View.

struct CounterView: View {
    @State private var count = 0

    var body: some View {
        VStack {
            Text("Counter: \(count)")
            Button("Increase") {
                count += 1
            }
        }
    }
}

Thus, data and UI are directly linked, and state changes are automatically reflected in the interface without the need to manually update the View.