SwiftUI grid spans

GridSpan.swift

struct ColSpan<Content: View>: View {
    let span: Bool
    let content: () -> Content
    
    init(span: Bool, @ViewBuilder content: @escaping () -> Content) {
        self.span = span
        self.content = content
    }
    
    var body: some View {
        content()
        
        if span { Color.clear }
    }
}

ForEach(0..<8) { idx in
    
    ColSpan(span: idx == 4) {
        Image("\(idx % 15)")
            .resizable()
            .frame(width: idx == 4 ? 310 : 150, height: 150)
    }
    
}