SwiftUI -使用淡入淡出动画更改文本

import SwiftUI

struct ContentView: View {
    @State private var isShowingText = false
    
    var body: some View {
        VStack {
            if isShowingText {
                Text("Hello, World!")
                    .opacity(1)
                    .animation(.easeInOut(duration: 1.0))
            } else {
                Text("Goodbye, World!")
                    .opacity(0)
                    .animation(.easeInOut(duration: 1.0))
            }
            
            Button(action: {
                withAnimation {
                    self.isShowingText.toggle()
                }
            }) {
                Text("Toggle Text")
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}