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Apr 17, 2026 · Frontend Development

HarmonyOS NEXT Responsive Layout: Semantic Breakpoints, Slot Architecture & State Preservation

This article presents a practical approach to building responsive layouts in HarmonyOS NEXT by defining semantic window breakpoints (narrow/medium/wide), centralizing breakpoint logic in a dedicated store, separating layout concerns into a PageShell component, and preserving UI state like selection and scroll position across layout changes.