SwiftUI-AnyLayout.swift

struct SwitchLayouts : View{
    
    @State private var switchStack: Bool = false
    
    var body: some View{

        let layout = switchStack ? AnyLayout(HStack()) : AnyLayout(VStack())
        
        VStack{
            
            Button {
                self.switchStack.toggle()
            } label: {
                Text("Switch")
            }

            layout {
                RoundedRectangle(cornerRadius: 20)
                    .fill(.orange)
                RoundedRectangle(cornerRadius: 20)
                    .fill(.blue)
            }
            .frame(width: 200, height: 200)
        }
        .padding()
        .animation(.default, value: self.switchStack)
    }
}