# init(base:state:body:) Creates a new gesture that’s the result of an ongoing gesture. ``` nonisolated init(base: Base, state: GestureState, body: @escaping (GestureStateGesture.Value, inout State, inout Transaction) -> Void) ``` ## Parameters `base` The originating gesture. `state` The wrapped value of a [`GestureState`](/documentation/SwiftUI/GestureState) property. `body` The callback that SwiftUI invokes as the gesture’s value changes. --- 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)