SwiftUI forms: Stepper

Another useful control we can use in forms is the Stepper view, which lets us select a number and gives a - and + button to decrease or increase it.

We link it to the value of a property with a @State property wrapper, in this case counter:

struct ContentView: View {
    @State private var counter = 0

    var body: some View {
        Form {
            Stepper("The counter is \(counter)", value: $counter)
        }
    }
}

You can use the in parameter of Stepper to limit the range of values it can accept:

Stepper("The counter is \(counter)", value: $counter, in: 0...10)

When you reach a limit, the control to increase or decrease will be gray and non-interactive.

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