# GeometryReader A container view that defines its content as a function of its own size and coordinate space. ``` @frozen nonisolated struct GeometryReader where Content : View ``` ## Overview This view returns a flexible preferred size to its parent layout. ## Topics ### Creating a geometry reader [`init(content:)`](/documentation/SwiftUI/GeometryReader/init(content:)) [`content`](/documentation/SwiftUI/GeometryReader/content) --- 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)