--- title: Corner concentricity in SwiftUI on iOS 26 | daily.dev description: iOS 26 introduces the ConcentricRectangle shape and containerShape() modifier in SwiftUI, enabling visually consistent nested rounded corners. The post covers... canonical: https://daily.dev/posts/corner-concentricity-in-swiftui-on-ios-26-mcsqwklcf twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Corner concentricity in SwiftUI on iOS 26 | daily.dev og:description: iOS 26 introduces the ConcentricRectangle shape and containerShape() modifier in SwiftUI, enabling visually consistent nested rounded corners. The post covers... og:url: https://daily.dev/posts/corner-concentricity-in-swiftui-on-ios-26-mcsqwklcf og:image: https://api.daily.dev/og/posts/McsQWKlcF.png og:image:alt: Corner concentricity in SwiftUI on iOS 26 og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Corner concentricity in SwiftUI on iOS 26 **[Nil Coalescing](https://daily.dev/sources/nilcoalescing)** · 6 min read · 0 upvotes · 0 comments ## Summary iOS 26 introduces the ConcentricRectangle shape and containerShape() modifier in SwiftUI, enabling visually consistent nested rounded corners. The post covers how concentric corner radii are calculated based on distance from the container edge, how to use ConcentricRectangle in sheets and popovers, how to set custom container shapes for cards and controls, the isUniform parameter for equal corner radii across all corners, and the minimum corner radius option to prevent fully sharp corners when a shape is far from its container. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Get concentric corner radii from GeometryReader in iOS 27](https://daily.dev/posts/get-concentric-corner-radii-from-geometryreader-in-ios-27-nmnskggrb) · Sarunw · 0 upvotes · 0 comments - [Beyond border-radius: What The CSS corner-shape Property Unlocks For Everyday UI — Smashing Magazine](https://daily.dev/posts/beyond-border-radius-what-the-css-corner-shape-property-unlocks-for-everyday-ui-smashing-magazine-59pqlyotq) · Smashing Magazine · 3 upvotes · 0 comments --- Tags: [#ios](https://daily.dev/tags/ios), [#ui-design](https://daily.dev/tags/ui-design), [#swift](https://daily.dev/tags/swift), [#swiftui](https://daily.dev/tags/swiftui) [View this post on daily.dev](https://daily.dev/posts/corner-concentricity-in-swiftui-on-ios-26-mcsqwklcf) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Corner concentricity in SwiftUI on iOS 26","url":"https://daily.dev/posts/corner-concentricity-in-swiftui-on-ios-26-mcsqwklcf","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/corner-concentricity-in-swiftui-on-ios-26-mcsqwklcf"},"datePublished":"2026-08-02T07:15:12.548Z","dateModified":"2026-08-24T06:57:46.025Z","description":"iOS 26 introduces the ConcentricRectangle shape and containerShape() modifier in SwiftUI, enabling visually consistent nested rounded corners. 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