Custom Vertical Horizontal alignment

custom_alignment.swift

struct ContentView: View {
    var body: some View {
        VStack(spacing: 40) {
            HStack(alignment: .midLeftAndRight) {
                VStack {
                    Text("Left 1")
                    Text("Left 2")
                        .alignmentGuide(.midLeftAndRight) {
                            $0[.bottom] / 2
                        }
                    Text("Left 3")
                    Text("Left 4")
                    Text("Left 5")
                }
                VStack {
                    Text("Right 1")
                        .alignmentGuide(.midLeftAndRight) {
                            $0[.bottom] / 2
                        }
                    Text("Right 2")
                }
            }
            VStack(alignment: .midTopAndBottom) {
                HStack {
                    Text("Top 1")
                    Text("Top 2")
                        .alignmentGuide(.midTopAndBottom) {
                            $0[.trailing] / 2
                        }
                    Text("Top 3")
                    Text("Top 4")
                    Text("Top 5")
                }
                HStack {
                    Text("Bottom 1")
                        .alignmentGuide(.midTopAndBottom) {
                            $0[.trailing] / 2
                        }
                    Text("Bottom 2")
                }
            }
        }
    }
}

extension VerticalAlignment {
    private enum MidLeftAndRight: AlignmentID {
        static func defaultValue(in context: ViewDimensions) -> CGFloat {
            context[.bottom] / 2
        }
    }
    
    static let midLeftAndRight = VerticalAlignment(MidLeftAndRight.self)
}

extension HorizontalAlignment {
    private enum MidTopAndBottom: AlignmentID {
        static func defaultValue(in context: ViewDimensions) -> CGFloat {
            context[.trailing] / 2
        }
    }
    
    static let midTopAndBottom = HorizontalAlignment(MidTopAndBottom.self)
}