Appbar MD3 Expressive improvements - #5075
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pawelkata wants to merge 34 commits into
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August 25, 2026 12:52
JKobrynski
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Aug 25, 2026
| elevation={elevation} | ||
| ref={ref} | ||
| testID={`${testID}-root-layer`} | ||
| elevation={0} |
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md.comp.app-bar.on-scroll.container.elevationresolves tolevel2, butelevationis pinned to0-isScrolledonly changes the container colour. Intentional?
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I'm probably missing something here, but... according to MD3 guidelines here: https://m3.material.io/components/app-bars/guidelines and the Figma kit, there's no elevation in appbars -- just the color indication that content was scrolled.
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@pawelkata can you resolve the comments that have been addressed? 🙏 |
adam-sajko
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Aug 27, 2026
callstack#4934 proposes an `actions` prop API for Appbar and callstack#5075 implements it, so the children refactor here is superseded. Appbar sources, tests and snapshots go back to their state on main.
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August 27, 2026 17:10
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Motivation
Replace the legacy compound Appbar API with a prop-driven Material 3 implementation. This adds small, flexible, and search variants; filled actions; scroll-aware colors; safe-area handling; and improved accessibility. Documentation, examples, and downstream usages are updated accordingly.
Related issue
Related issue: #4934
Also based on comments on Appbar from here: #4949 (comment) .
Caveats
The search bar is dropped in verbatim as it needs a separate pool of work to properly handle the "search" variant. Deliberately skipped any animations related work at this stage due to lack of testing device and the PR already being quite big. Can be tackled at a later stage.
NOTE: The PR drops support for the bottom app bar variant, which is now - according to the official docs - part of the
Toolbars.Test plan
yarn test src/components/__tests__/Appbar.yarn lintandyarn typecheck.