使SwiftUI矩形的高度或宽度与另一个矩形相同

import SwiftUI

struct ContentView: View {
    @State private var rectangleSize: CGFloat = 100
    
    var body: some View {
        GeometryReader { geometry in
            VStack {
                Rectangle()
                    .frame(width: self.rectangleSize, height: self.rectangleSize)
                    .foregroundColor(.blue)
                
                Rectangle()
                    .frame(width: self.rectangleSize, height: self.rectangleSize)
                    .foregroundColor(.red)
                    .onTapGesture {
                        self.rectangleSize = geometry.size.width // 或者使用geometry.size.height
                    }
            }
        }
    }
}

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