Turn buttons inactive and change opacity - ios

Question

I am fairly new to Swift, so please bear with me.
screenshot when nothing's tapped
screenshot when one button is tapped
I am trying to turn the other buttons, which are not tapped, inactive and change the opacity to 0.5.
So far I have tried using the $bindings but that did not work the way I wanted it to.
Here is the Code for my SelectionButtons:
struct SelectionButton: View {
var buttonText = "Selection Button"
var buttonColor = Color.white
var buttonWidth: CGFloat = 150
var active = false
var body: some View {
ZStack {
if active {
RoundedRectangle(cornerRadius: 45)
.frame(width: buttonWidth, height: 50)
.foregroundColor(Color("neonGreen"))
.shadow(color: Color(#colorLiteral(red: 0, green: 0, blue: 0, alpha: 0.25)), radius:9, x:0, y:0)
Text(buttonText)
.font(.system(size: 18))
.foregroundColor(.black)
.bold()
}else{
RoundedRectangle(cornerRadius: 45)
.frame(width: buttonWidth, height: 50)
.foregroundColor(buttonColor)
.shadow(color: Color(#colorLiteral(red: 0, green: 0, blue: 0, alpha: 0.25)), radius:9, x:0, y:0)
Text(buttonText)
.font(.system(size: 18))
.foregroundColor(.black)
}
}
}
And this is how I use them:
#State var gelbesBlatt = false
var body: some View {
NavigationView {
Button(action: {
self.gelbesBlatt.toggle()
}, label: {SelectionButton(buttonText: "gelb", buttonColor: .white, buttonWidth: 150, active: gelbesBlatt)
})
}
}
Thank you!
If you have an idea how I could add combinations, so that specific buttons which belong together (like "Ganzes Blatt > gelb" and "Ränder > braun") can be selected together, that would be awesome!

Answer 1

Check this:
#State var gelbesBlatt = false
#State var btnBraun = false
var body: some View {
NavigationView {
HStack {
Button(action: {
self.toggleButton(button: 0)
}, label: {SelectionButton(buttonText: "gelb", buttonColor: .white, buttonWidth: 150, active: gelbesBlatt)
})
Button(action: {
self.toggleButton(button: 1)
}, label: {SelectionButton(buttonText: "braun", buttonColor: .white, buttonWidth: 150, active: btnBraun)
})
}
}
}
func toggleButton(button: Int) {
if(button == 0) {
self.gelbesBlatt = true
self.btnBraun = false
} else {
self.gelbesBlatt = false
self.btnBraun = true
}
self.gelbesBlatt.toggle()
self.btnBraun.toggle()
}