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feat(ui,learn,todo,train,meditate): a wave in the app's colour over the navigation bar

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The developer's choice of 7 Nov 2026 (the mockup's variant E): a tap on
another destination sends a radial glow in the app's colour over the bar
from that destination's centre, solid to 35 % of its radius and gone at
70 %, growing to cover the bar (cubic(.2, .7, .2, 1)) while it fades from
half its strength in dark mode and a third in light, over 1.2 s, behind
the destinations and clipped to the bar. None for the destination already
chosen, none with animations off, and none for a tab changed without a
tap (a link, back): the wave answers the finger. The destination chosen
takes the app's colour, its indicator tinted 22 % with it, without
Material's ripple or the indicator growing; the bar's top corners are
rounded, 20 dp, the screen showing through them.

Each app gives the frame its colour (NavigationFrame's accent, from
PaletteColor): Learn's purple, its icon's last colour, Todo's strawberry,
Train's carrot and Meditate's fern, their screens' wash.

For trying it on a phone, a debug build's Settings has a section
Navigation bar (debug), halkyon_ui's NavigationBarDebugSection, switching
live, in memory alone: the variant (A Material only, C the wave with
Material's fill, E without it, F without the indicator too), the wave's
time (0.7 to 2 s) and the corners (0 to 28 dp). Release builds never read
it and show shippingNavigationBarStyle, the debug section's start: to
remove it, delete the section from the four Settings screens and
debugNavigationBarStyle, and let effectiveNavigationBarStyle return the
shipping style.

Whats-New: Tapping a tab sends a soft wave in the app's colour across the navigation bar, now with rounded corners.
Whats-New-De: Ein Tipp auf einen Tab schickt eine sanfte Welle in der Farbe der App über die Navigationsleiste, jetzt mit abgerundeten Ecken.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-11-08 00:29:14 +01:00
commit 45fd6595e1
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
1 changed files with 789 additions and 14 deletions
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6
docs/adr/0030-halkyon-train.md
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@ -1490,7 +1490,11 @@ Strava. What was found, 27 Oct:
keeps it, 64 dp in the theme's own colour across the whole width, and a fade 32 dp high
into the background of the screen in view above it replaces the floating card, so what
scrolls on beneath it fades out rather than being cut off; halkyon_ui's
`FlushNavigationBar`, the rail unchanged). Driven by
`FlushNavigationBar`, the rail unchanged; and, the same day, its top corners rounded,
20 dp, a tap on another destination sending a wave in the app's colour over the bar
from it, 1.2 s, the destination chosen in that colour, without Material's ripple or
the indicator growing, the variant E of the developer's mockup, which a debug build's
Settings switches live among the others). Driven by
go_router as Learn's (a `StatefulShellRoute`, each tab keeping its own stack): a
workout's page opens in Home and a day's in Profile with the tabs beside them, the
route and plan editors and the recording over them; over keeping `Navigator.push`