variable3.swift

variable3.swift

var setGreet = PassthroughSubject<String,Never>()

struct ContentView: View {
    @State var saySome = SwiftUIViewD()
    var body: some View {
        saySome
            .onTapGesture {
                setGreet.send("Hello, World!")
            }
    }
}

struct SwiftUIViewD: View {
    @State var greeter = "X"
    var body: some View {
        Text(greeter)
            .onReceive(setGreet) { ( message ) in
                setString(newString: message)
            }
    }
    func setString(newString: String) {
        greeter = "Hello, World! "

    }
}