import SwiftUI struct boton: View {          @State var boton : String = "S"     var body: some View {                                            VStack {                          Text("bnvnb: \(boton)")                          Button(action: {                 self.boton = self.boton + "S"                                      } ) {                                  /*@START_MENU_TOKEN@*/Text("Button")/*@END_MENU_TOKEN@*/                                  }                      }              }      }   This is the button file you recalled

I don't know how to arrange the text Sorry, but I want to control the brightness. Can you create a code and slider ? How was this important code with the lighting control feature so that the user can modify the lighting from within the application, not through the system by pulling the tape!

Could you place the order here please Code Block @State var counter: Int = 0    var body: some View {        VStack {            Text("\(counter)")            Button("Count Up") {                counter += 1            }                        Button("Count Down") {                counter -= 1            }                 }     

     ZStack {             LinearGradient(gradient: Gradient(colors: [Color.orange, Color.yellow, Color.white]), startPoint: .top, endPoint: .bottom)                 .edgesIgnoringSafeArea(.all)                 SwiftUIView()                 boton()                                .font(Font.system(size: 80))                     .offset(x: 10, y: -10)                      }         UIScreen.main.brightness = 0.1 // between 0 and 1     } } struct ContentView_Previews: PreviewProvider {     static var previews: some View {         ContentView()     } }

Type '()' cannot conform to 'View'; only struct/enum/class types can conform to protocols I am showing this error

I will try to do justice to it, show it to me I tried it, the screen turned off and the button stayed on, but I couldn't connect the brightness to a button Because I don't know how At first I was going to link the button and the counter with the volume up and down button, but it is forbidden, then I got this idea

I need some code ----- xcode12