SwiftUI中List和ScrollView的底部padding去除方法

Question

I'd like to remove bottom padding, the white space between the red space. Is there any way to achieve it?

Test Code:

struct ContentView: View {
    var body: some View {
        return NavigationView {
            VStack {
                // the same result with using List instead of ScrollView
                ScrollView {
                    ForEach(1..<100) { index in
                        HStack {
                            Spacer()
                            Text("\(index)")
                            Spacer()
                        }
                    }
                }.background(Color.red)
                HStack {
                    Spacer()
                    Text("Test")
                    Spacer()
                }
                .background(Color.red)
            }
            .navigationBarTitle(Text("Test"), displayMode: .inline)
        }
    }
}

Answer 1

You have to pass 0 for no spacing. By default it takes default space based on context

VStack(spacing: 0) {

   // the same result with using List instead of ScrollView
   ScrollView {

   .........
}

Answer 2

Just use GeometryReader

@State var contentSize: CGSize = .zero

ScrollView {
    YourContentView()
        .overlay(
            GeometryReader { geo in
                Color.clear.onAppear {
                    contentSize = geo.size
                }
            }
        )
}
.frame(maxWidth: .infinity, maxHeight: contentSize.height)