foundations/foundations library

Design tokens, theming hosts, and shared interaction primitives for Material 3 Expressive components.

Classes

CornerRounding
Defines the amount and quality around a given vertex of a shape. radius defines the radius of the circle which forms the basis of the rounding for the vertex. smoothing defines the amount by which the curve is extended from the circular arc around the corner to the edge between vertices.
M3EButtonFontSize
Per-size label font sizes for expressive buttons.
M3EColorScheme
The full set of Material 3 color roles used across expressive components.
M3EColorUtils
Color helpers shared across expressive components.
M3EComponentTheme
Registers an adaptive theme dependency for a single M3E component subtree.
M3EElevation
Material 3 elevation tokens expressed in logical pixels (dp).
M3EFocus
Shared focus helpers for M3E input components.
M3EIcons
A curated set of glyphs from the bundled MaterialIcons font.
M3EInheritedTheme
Inherited theme handle used by M3ETheme.of.
M3EInkSplashTheme
Supplies expressive splash color for Material buttons that only expose overlay color to their ink layer.
M3EInteractionState
The mutually reinforcing interaction states of a component.
M3EMaterialApp
A MaterialApp wired to adaptive M3ETheme with minimal integration code.
M3EMaterialNewShapes
Foundation bridge to material_new_shapes expressive morph polygons.
M3EMotion
Material 3 Expressive motion tokens.
M3EResolvedTheme
Applies a resolved M3EThemeData to a subtree.
M3EScrimSystemUi
System UI overlay for modal surfaces shown over a dark scrim.
M3EShapes
Material 3 Expressive shape (corner radius) tokens.
M3EShapeSet
A five-step BorderRadius scale for a single shape family.
M3ESpacing
Material 3 Expressive spacing tokens.
M3ESpring
A serialisable description of a Material 3 Expressive spring.
M3EStateLayer
Resolves Material state-layer overlay colors using M3EStateOpacity tokens.
M3EStateLayerOverlay
Paints a Material ink splash clipped to shape behind child.
M3EStateOpacity
Material 3 state layer opacity tokens.
M3ETappable
A reusable interaction primitive powering expressive components.
M3ETappableInkScope
Supplies ink interaction callbacks from the tappable primitive to overlays.
M3ETheme
Provides an M3EThemeData to the widget subtree.
M3EThemeController
Manual brightness control for an adaptive M3ETheme root.
M3EThemeData
Immutable bundle of expressive design tokens and per-component themes.
M3EThemeExtension<T extends M3EThemeExtension<T>>
Base type for overridable component themes registered on M3EThemeData.
M3EThemeScope
Hosts adaptive theme listeners and resolves M3EThemeData for components.
M3EThemeScopeState
State for M3EThemeScope that resolves brightness and dynamic color.
M3ETypeScale
The Material 3 type scale.
Morph
This class is used to animate between start and end polygons objects.
RoundedPolygon
The RoundedPolygon class allows simple construction of polygonal shapes with optional rounding at the vertices. Polygons can be constructed with either the number of vertices desired or an ordered list of vertices.

Functions

pathFromCubics({required Path path, required int startAngle, required bool repeatPath, required bool closePath, required List<Cubic> cubics, required double rotationPivotX, required double rotationPivotY}) → Path
Returns a Path for a Cubic list.

Typedefs

M3EStateWidgetBuilder = Widget Function(BuildContext context, M3EInteractionState state)
Builds the visual for a tappable surface given its interaction state.