import SwiftUI

struct ContentView : View {

    @State var counter:Int = 0;

    var body: some View {
        VStack {
            HStack {
                Text("You counter value: ")
                    .padding(5)
                Text(String(counter))
                    .font(.largeTitle)
                    .color(.red)
                }.padding(20)

            HStack {
                Button(action: {
                    self.counter -= 1
                },
                       label: {
                        Text("Decrease(-)")
                })
                Spacer()
                Button(action: {
                    self.counter += 1
                },
                       label: {
                        Text("Increase(+)")
                })
            }
        }
        .padding(20)
    }
}