metro_ui 0.2.0

A Flutter component library inspired by Microsoft's Windows 8 Modern UI design language.

Changelog

0.2.0

• Reorganize documentation around package adoption, design direction, contribution, maintenance, and releases.
• Add Metro 4-informed logical tile badges and left/right/zoom live-face transitions while preserving WinJS motion curves and reduced-motion rules.
• Add MetroEntrance for directional and staggered Windows 8 page-content entrance motion.
• Apply the 0.975 Windows pointer feedback recipe to Metro buttons, with a themeable press scale and reduced-motion support.

0.1.0

• Establish the package architecture and single metro_ui.dart entry point.
• Add semantic colors, typography, spacing, motion, and light/dark themes.
• Add Metro button, icon button, tile, tile grid, progress ring, and page.
• Add Live Tiles with keyed content frames, frame-specific durations, dynamic semantics, directional face transitions, and reduced-motion freezing.
• Add Pivot navigation, text input, and toggle switch controls.
• Add checkbox, radio button, selectable list tile, and progress bar controls.
• Refine progress indicators with a five-dot indeterminate bar, size-aware five/six-dot rings, active-state control, localized semantic values, reduced-motion static states, and logical-direction determinate filling.
• Add reusable single/multiple selection controllers and inherited selection groups with required-selection and maximum-count policies.
• Bind radio buttons and multi-select list tiles to shared selection state, including keyboard and checked/selected semantics.
• Add text-field error/success feedback, secure password constructors, and MetroTextFormField integration with Flutter forms.
• Add subtree-level MetroTextFieldTheme overrides and semantic validation colors.
• Add a Windows 8-style bottom command bar, circular command buttons, and a MetroPage.bottomBar slot.
• Add theme-capturing Metro dialogs with keyboard dismissal and square Metro tooltips for hover, focus, and long-press discovery.
• Add start/end edge flyouts with an accent header, full-height layout, and directional entrance motion.
• Add theme-capturing page routes with logical LTR/RTL slide, drill, fade, and reduced-motion transition recipes.
• Add persistent Metro focus traversal groups with desktop parent-scope edges, contained spatial looping, custom policies, and directional keyboard tests.
• Add segmented date and time pickers with theme-capturing scrolling-column dialogs, locale-aware date ordering, configurable formatting, date-range clamping, 12/24-hour display, and minute increments.
• Add a generic Metro combo box with controlled selection, disabled rows, viewport-aware popup flipping, keyboard navigation, RTL alignment, semantics, reduced motion, and application/subtree/widget theme precedence.
• Add a generic Metro SearchBox with locally filtered or externally replaced suggestions, distinct edit/select/clear reasons, query submission, clear and search actions, keyboard highlighting, disabled rows, viewport-aware popup placement, localized semantics, and subtree theming.
• Add a generic Metro NumberBox with controlled integer and decimal values, commit-time parsing, optional step snapping, min/max clamping, custom formatting, invalid-input policies, keyboard and mouse-wheel stepping, press-and-hold repeat, adjustable semantics, and subtree theming.
• Add a Metro FlipView with controlled or internal selection, direct horizontal and vertical dragging, circular navigation without duplicate page subtrees, banners, indicators, RTL keyboard input, localized semantics, reduced motion, and application/subtree/widget theme precedence.
• Add horizontal and vertical Metro sliders with rectangular thumbs, logical RTL/reversed direction, ticks, snapping divisions, small/large keyboard changes, independent range-thumb semantics, minimum ranges, and whole-range dragging.
• Add a generic Metro data grid with fixed/flexible columns, controlled sort indicators, shared single/multiple row selection, disabled-row navigation, lazy fixed-height viewports, horizontal scrolling, and row semantics.
• Add English and Simplified Chinese Metro localization defaults with a replaceable delegate, English fallback behavior, localized picker and semantic strings, and a logical-direction RTL audit across controls.
• Add opt-in light and dark high-contrast theme data selected through MediaQuery.highContrast, AAA primary text palettes, corrected on-accent contrast selection, and accessibility goldens at 2x raster density and 1.5x text scale.
• Expand CI gallery builds across Web, Windows, Linux, macOS, Android, and iOS, generating platform scaffolds on their native runners.
• Validate the declared Flutter 3.32 lower bound with static analysis and the complete non-Golden behavioral suite in CI.
• Keep the Web gallery as a locally validated release artifact while its eventual hosting target remains intentionally undecided.
• Add tested light and dark package preview images to the README and pub.dev screenshot metadata, with a CI guard that keeps them synchronized with their Golden baselines.
• Document every exported type, formalize the pre-1.0 and stable compatibility policy, and remove an accidentally exported internal theme tween.
• Add a contribution guide and pull-request checklist covering Modern UI fidelity, interaction completeness, API review, and visual regression work.
• Add a reference-derived component coverage matrix that records the 1.0 scope, deliberate later-Fluent exclusions, and admission criteria for 1.x controls.
• Add subtree themes for buttons, tiles, progress indicators, list tiles, check boxes, radio buttons, toggle switches, and Pivot, completing local component-theme coverage across the current library.
• Use system Segoe UI on Windows and bundle an Apache-licensed fallback font for reliable Web and non-Windows rendering.
• Add a Windows/Web gallery, widget tests, documentation, and CI workflows.
• Standardize non-Pivot fades and local state transitions on the shared Metro ease-out curve, including interruption-safe CommandBar and Tooltip motion.
• Prevent stale overlay and controlled-navigation callbacks from committing superseded state, and harden tile and tooltip geometry at narrow boundaries.
• Replace fixed zero-duration implicit animations with ordinary containers to avoid unnecessary animation state and rebuild overhead.