UICollectionView and SwiftUI?

Question

How to create grid of square items (for example like in iOS Photo Library) with SwiftUI?

I tried this approach but it doesn\'t work:

var body: some          


        

Answer 1

Based on Will's answer i wrapped it all up in a SwiftUI ScrollView. So you can achieve horizontal (in this case) or vertical scrolling.

It's also uses GeometryReader so it is possible to calculate with the screensize.

GeometryReader{ geometry in
 .....
 Rectangle()
    .fill(Color.blue)
    .frame(width: geometry.size.width/6, height: geometry.size.width/6, alignment: .center)
 }

Here is the a working example:

import SwiftUI

struct MaterialView: View {

  var body: some View {

    GeometryReader{ geometry in

      ScrollView(Axis.Set.horizontal, showsIndicators: true) {
        ForEach(0..<2) { _ in
          HStack {
            ForEach(0..<30) { index in
              ZStack{
                Rectangle()
                  .fill(Color.blue)
                  .frame(width: geometry.size.width/6, height: geometry.size.width/6, alignment: .center)

                Text("\(index)")
              }
            }
          }.background(Color.red)
        }
      }.background(Color.black)
    }

  }
}

struct MaterialView_Previews: PreviewProvider {
  static var previews: some View {
    MaterialView()
  }
}