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swiftui - Dynamically scaling image depending on remaining space

I have two vertical stacks. The first one contains the Image and the second contains the TextField. I'm playing around with keyboard appearing/disappearing behaviour. When keyboard appears I increase the bottom padding of the TextField hence VStack #2 is getting higher and VStack #1 is getting lower (at least it looks like this). What I want to achieve is to get Image scaled proportionally to the remaining area.

var body: some View {
    GeometryReader { g in
    ...
    VStack {
        VStack { // VStack #1
            Image("logo")
                .resizable()
                .aspectRatio(contentMode: .fit)
                .padding(.top, g.size.height * 0.0243)
             Text("Sample text")
         }
         Spacer()
         VStack { // VStack #2
             TextField("Enter Email", text: $email)
             ...
         }
         .background(Color.white)
         .frame(
             width: g.size.width,
             height: g.size.height * 0.698,
             alignment: .center
         )
    ...

    }
}}

I expected that resizable and aspectRatio modifiers should do this work dynamically but they don't. The Image partially hidden behind the increased VStack.

What else should I try? Thank you in advance.

question from:https://stackoverflow.com/questions/65875158/dynamically-scaling-image-depending-on-remaining-space

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