Daniel Saidi • 5/22/2026

Making a SwiftUI sheet automatically size to fit its content

This article explains how to create a SwiftUI sheet that automatically sizes to fit its content, addressing the limitations of native presentation detents like .medium and .large. The author introduces a custom SizeToFitPresentationDetent enum and a SizeToFitModifier view modifier that observes content height using onGeometryChange and applies it as a .height detent. The solution also supports additional detents for user resizing. The code is available in the open-source PresentationKit library. This tutorial is relevant for iOS developers working with SwiftUI and custom sheet presentations.

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#Io #Swiftui #Presentationdetents