.swift

 NavigationView {
            
            LazyVGrid(columns: columns) {
               
                Rectangle()
                    .fill(Color.red)
                    .aspectRatio(contentMode: .fit)
                
                Rectangle()
                    .fill(Color.red)
                    
                
                Rectangle()
                    .fill(Color.red)
                    
            }
            
            .navigationTitle("LazyVGrid")
        }