Here is some approach of how this could be done using alignmentGuide(s). It is simplified to avoid many code post, but hope it is useful.
Update: There is also updated & improved variant of below solution in my answer for SwiftUI HStack with wrap and dynamic height
This is the result:
And here is full demo code (orientation is supported automatically):
import SwiftUI
struct TestWrappedLayout: View {
@State var platforms = ["Ninetendo", "XBox", "PlayStation", "PlayStation 2", "PlayStation 3", "PlayStation 4"]
var body: some View {
GeometryReader { geometry in
self.generateContent(in: geometry)
}
}
private func generateContent(in g: GeometryProxy) -> some View {
var width = CGFloat.zero
var height = CGFloat.zero
return ZStack(alignment: .topLeading) {
ForEach(self.platforms, id: \.self) { platform in
self.item(for: platform)
.padding([.horizontal, .vertical], 4)
.alignmentGuide(.leading, computeValue: { d in
if (abs(width - d.width) > g.size.width)
{
width = 0
height -= d.height
}
let result = width
if platform == self.platforms.last! {
width = 0 //last item
} else {
width -= d.width
}
return result
})
.alignmentGuide(.top, computeValue: {d in
let result = height
if platform == self.platforms.last! {
height = 0 // last item
}
return result
})
}
}
}
func item(for text: String) -> some View {
Text(text)
.padding(.all, 5)
.font(.body)
.background(Color.blue)
.foregroundColor(Color.white)
.cornerRadius(5)
}
}
struct TestWrappedLayout_Previews: PreviewProvider {
static var previews: some View {
TestWrappedLayout()
}
}