How do I use matchedGeometryEffect transitions in SwiftUI?

Matched geometry effects in SwiftUI are a powerful way to create smooth transitions between views. By using the `matchedGeometryEffect` modifier, you can animate the transformation of views as they change position or size.

To use matched geometry effects, you'll need to create a shared namespace for your views and apply the same ID to elements that should transition together. This makes it possible for SwiftUI to animate the changes seamlessly.

Here's an example of using matched geometry effects with a simple transition between two views:


    struct MatchedGeometryEffectExample: View {
        @Namespace private var animation
        @State private var isShowingDetail = false

        var body: some View {
            VStack {
                if isShowingDetail {
                    DetailView(animation: animation)
                        .matchedGeometryEffect(id: "myView", in: animation)
                        .onTapGesture {
                            withAnimation {
                                isShowingDetail.toggle()
                            }
                        }
                } else {
                    ThumbnailView(animation: animation)
                        .matchedGeometryEffect(id: "myView", in: animation)
                        .onTapGesture {
                            withAnimation {
                                isShowingDetail.toggle()
                            }
                        }
                }
            }
        }
    }
    
    struct ThumbnailView: View {
        var animation: Namespace.ID
        
        var body: some View {
            Rectangle()
                .fill(Color.blue)
                .frame(width: 100, height: 100)
                .cornerRadius(20)
        }
    }
    
    struct DetailView: View {
        var animation: Namespace.ID
        
        var body: some View {
            Rectangle()
                .fill(Color.blue)
                .frame(width: 300, height: 300)
                .cornerRadius(20)
        }
    }

How do I use matchedGeometryEffect transitions in SwiftUI?

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How do I use matchedGeometryEffect transitions in SwiftUI?

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