requires that 'moveView' conform to 'StringProtocol' in swiftui

Question

I have a struct to pass the ObservedObject value change.

struct moveView : View {

    @Binding var move : Bool

    var body: some View {
        if move{
           return Text("1")
        }else{
           return Text("2")
        }
    }
}
struct TextView : View {

    @ObservedObject var skc:xiangcene

    var body: some View {
        Text("test")
         .opacity(moveView(move: $skc.move) == "1" ? 0.1 : 0.8) // <- error on this line
    }
}

The compiler gives the following error:

Referencing operator function == on StringProtocol requires that moveView conform to StringProtocol

How can i fix that?