# init(label:onIncrement:onDecrement:onEditingChanged:) Creates a stepper instance that performs the closures you provide when the user increments or decrements the stepper. ``` @export(implementation) nonisolated init(@ContentBuilder label: () -> Label, onIncrement: (() -> Void)?, onDecrement: (() -> Void)?, onEditingChanged: @escaping (Bool) -> Void = { _ in }) ``` ## Parameters `label` A view describing the purpose of this stepper. `onIncrement` The closure to execute when the user clicks or taps the control’s plus button. `onDecrement` The closure to execute when the user clicks or taps the control’s minus button. `onEditingChanged` A closure called when editing begins and ends. For example, on iOS, the user may touch and hold the increment or decrement buttons on a `Stepper` which causes the execution of the `onEditingChanged` closure at the start and end of the gesture. ## Discussion Use this initializer to create a control with a custom title that executes closures you provide when the user clicks or taps the stepper’s increment or decrement buttons. The example below uses an array that holds a number of [`Color`](/documentation/SwiftUI/Color) values, a local state variable, `value`, to set the control’s background color, and title label. When the user clicks or taps on the stepper’s increment or decrement buttons SwiftUI executes the relevant closure that updates `value`, wrapping the `value` to prevent overflow. SwiftUI then re-renders the view, updating the text and background color to match the current index: ``` struct StepperView: View { @State private var value = 0 let colors: [Color] = [.orange, .red, .gray, .blue, .green, .purple, .pink] func incrementStep() { value += 1 if value >= colors.count { value = 0 } } func decrementStep() { value -= 1 if value < 0 { value = colors.count - 1 } } var body: some View { Stepper { Text("Value: \(value) Color: \(colors[value].description)") } onIncrement: { incrementStep() } onDecrement: { decrementStep() } .padding(5) .background(colors[value]) } ``` }  --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)