SwiftUI：在scrollView中从底部对齐构建视图

Question

有没有一种方法可以用底部对齐的方式在SwiftUI中构建滚动视图内的UI元素？

我的用例：我有一个屏幕，屏幕有

1. 间隔（分配下面元素后剩下的部分）
2. logoview
3. 间隔（）-30
4. 某些文本-4/5行
5. 间隔（）-50（这将根据GR尺寸高度计算）
6. hstack有两个按钮-这应该固定在视图/ScrollView的底部

struct ContentView: View {
        var body: some View {
        GeometryReader { gr in
            ScrollView {
                VStack {
                    Spacer()
                    Image(systemName: "applelogo")
                        .resizable()
                        .frame(width: gr.size.width * 0.5, height: gr.size.height * 0.3, alignment: .center)
                    Spacer().padding(.bottom, gr.size.height * 0.01)
                    Text("SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME")
                        .fontWeight(.regular)
                        .foregroundColor(.green)
                        .multilineTextAlignment(.center)
                        .padding(.top, gr.size.height * 0.05)
                        .padding(.horizontal, 40)
                        .layoutPriority(1)
                    Spacer()
                        .frame(minHeight: gr.size.height * 0.12)
                    HStack {
                        Button(action: {

                        }, label: {
                            Text("Button 1")
                        })
                        .foregroundColor(Color.white)
                        .padding(.vertical)
                        .frame(minWidth: 0, maxWidth: .infinity)
                        .background(Color.blue)
                        .cornerRadius(8)

                        Button(action: {

                        }, label: {
                            Text("Button 2")
                        })
                        .foregroundColor(Color.white)
                        .padding(.vertical)
                        .frame(minWidth: 0, maxWidth: .infinity)
                        .background(Color.blue)
                        .cornerRadius(8)
                    }
                    .padding(.horizontal, 20)
                }
                //.frame(maxWidth: .infinity, maxHeight: .infinity)
            }
        }
    }
}

Answer 1

struct SampleView: View {
    var body: some View {
        GeometryReader { gr in
            VStack {
                ScrollView {
                    VStack {

                        // Fills whatever space is left
                        Rectangle()
                            .foregroundColor(.clear)

                        Image(systemName: "applelogo")
                            .resizable()
                            .frame(width: gr.size.width * 0.5, height: gr.size.height * 0.3, alignment: .center)
                            .padding(.bottom, gr.size.height * 0.06)


                        Text("SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME TEXT SOME")
                            .fontWeight(.regular)
                            .foregroundColor(.green)
                            .multilineTextAlignment(.center)
                            .padding(.horizontal, 40)
                            .layoutPriority(1)


                        // Fills 12 %
                        Rectangle()
                            .frame(height: gr.size.height * 0.12)
                            .foregroundColor(.clear)

                        HStack {

                            Button(action: {
                            }, label: {
                                Text("Button 1")
                            })
                            .foregroundColor(Color.white)
                            .padding(.vertical)
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .background(Color.blue)
                            .cornerRadius(8)

                            Button(action: {
                            }, label: {
                                Text("Button 2")
                            })
                            .foregroundColor(Color.white)
                            .padding(.vertical)
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .background(Color.blue)
                            .cornerRadius(8)
                        }
                        .padding(.horizontal, 20)
                        .padding(.bottom, 20)

                    }

                    // Makes the content stretch to fill the whole scroll view, but won't be limited (it can grow beyond if needed)
                    .frame(minHeight: gr.size.height)
                }
            }
        }
    }
}