ios – ForEach doesn’t work with @State property in preview

I’ve an inventory for my part

@State var capturedColors: [ColorViewModel] = []

I take advantage of ForEach to create a subview primarily based on the record

ForEach(capturedColors) { shade in
    RoundedRectangle(cornerRadius: 10.0).fill(Coloration(shade.cgColor)) //...modifiers ommited
}

A brand new merchandise will probably be appended into the record when a button is tapped.

The view will get up to date accurately when the app runs on a bodily machine, nevertheless it doesn’t present something within the preview.

I did one thing like this within the preview:

struct CaptureView_Previews: PreviewProvider {
    static var previewColors: [ColorViewModel] = [
        ColorViewModel(CGColor.init(red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0)),
    ]
    static var previews: some View {
        CaptureView(previewColors) // an initializer assign the parameter to the property
    }
}

The ColorViewModel is only a class wrap some shade information:

class ColorViewModel: ObservableObject, Identifiable {
    @Revealed var cgColor: CGColor = CGColor(crimson: 1.0, inexperienced: 1.0, blue: 0.5, alpha: 1.0)
    init() {}
    
    init(r: UInt8, g: UInt8, b: UInt8) {
        cgColor = CGColor(crimson: CGFloat(r), inexperienced: CGFloat(g), blue: CGFloat(b), alpha: 1.0)
    }
    
    init(_ cgColor: CGColor) {
        self.cgColor = cgColor
    }
// ...
}

Methods to make the preview work?

Any assist could be appreciated.