How do I add unified theming support in SwiftUI with Swift?

In SwiftUI, unified theming support can be achieved by creating a custom theme struct that conforms to the `EnvironmentKey` protocol. This allows you to define consistent styles and attributes throughout your app. Here's a brief guide on how to implement unified theming in SwiftUI.

unified theming, SwiftUI, iOS development, Swift programming

Learn how to implement unified theming support in SwiftUI to ensure a consistent and cohesive user interface across your application.


        struct ThemeKey: EnvironmentKey {
            static var defaultValue: Theme = Theme.default
        }
        
        extension EnvironmentValues {
            var theme: Theme {
                get { self[ThemeKey.self] }
                set { self[ThemeKey.self] = newValue }
            }
        }
        
        struct Theme {
            var accentColor: Color
            var backgroundColor: Color
            
            static let `default` = Theme(accentColor: .blue, backgroundColor: .white)
        }
        
        struct ThemedView: View {
            @Environment(\.theme) var theme
            
            var body: some View {
                VStack {
                    Text("Hello, World!")
                        .padding()
                        .background(theme.accentColor)
                        .foregroundColor(theme.backgroundColor)
                }
                .background(theme.backgroundColor)
            }
        }
        
        struct ContentView: View {
            var body: some View {
                ThemedView()
                    .environment(\.theme, Theme(accentColor: .red, backgroundColor: .black))
            }
        }

How do I add unified theming support in SwiftUI with Swift?

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How do I add unified theming support in SwiftUI with Swift?

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