.swift

 NavigationView {
            ScrollView {
                
                LazyVGrid(columns: columns, spacing: 10, pinnedViews: [.sectionHeaders]) {
                    ForEach(1..<11) { index in
                        
                        Section(header: headerView(index)) {
                            
                            ForEach(0..<20) { _ in
                                Rectangle()
                                    .fill(Color.red)
                                    .aspectRatio(contentMode: .fit)
                            }
                        }
                        
                    }
                }.padding()
            }
            
            .navigationTitle("LazyVGrid")
        }