SwiftNumberPad

struct NumberPadExample: View {
    @Binding var calories: Float

    init(myValue: Binding<Float>) {
        _calories = myValue
        config = .init(myValue.wrappedValue, precision: 1, upperBound: 1000)
    }

    @ObservedObject var config: NPFloatConfig<Float>

    var body: some View {
        VStack {
            Text("\(config.stringValue)")

            NumberPad(config: config)
                .buttonStyle(.bordered)
        }
        .font(.largeTitle)
        .navigationTitle("Calories")
        .toolbar {
            ToolbarItem {
                Button("Save") {
                    calories = config.value ?? 0
                }
            }
        }
        .padding()
    }
}

struct NumPadExample_Previews: PreviewProvider {
    static var previews: some View {
        NavigationStack {
            NumberPadExample(myValue: .constant(Float(233.6)))
        }
    }
}