SwiftUI can't tap in Spacer of HStack

As I've recently learned there is also:

HStack {
  ...
}
.contentShape(Rectangle())
.onTapGesture { ... }

Works well for me.

Why not just use a Button?

Button(action: { self.groupSelected(self.group) }) {
    HStack {
        Text(group.name)
        Spacer()
        if (groupModel.required) { Text("Required").color(Color.gray) }
        Image("ic_collapse").renderingMode(.template).rotationEffect(Angle(degrees: 90)).foregroundColor(Color.gray)
    }
}.foregroundColor(.primary)

If you don't want the button to apply the accent color to the Text(group.name), you have to set the foregroundColor as I did in my example.

I've been able to work around this by wrapping the Spacer in a ZStack and adding a solid color with a very low opacity:

ZStack {
    Color.black.opacity(0.001)
    Spacer()
}