material library
Material widgets for rendering adaptive actions.
This entrypoint re-exports the platform-neutral core contract and adds MaterialAdaptiveActions, a width-aware primary and overflow action region. It also exposes the shared action-region layout contract.
Classes
-
ActionCollection<
T extends Object> - The complete action tree and its root-level placement relationships.
-
ActionCollectionEntry<
T extends Object> -
One normalized declaration fragment for
ActionCollection.fromEntries. - ActionLabelLayout
- Constrains one primary action label without changing its placement policy.
- ActionLayoutConstraints
- Available primary space and renderer costs for one resolution pass.
- ActionLayoutOption
- A renderer-owned way to draw an action in the primary region.
- ActionLayoutProfile
- The primary-region layouts available for one root action.
-
ActionLayoutRequest<
T extends Object> - A validated snapshot of everything needed for one layout decision.
- ActionLayoutResolver
- Produces the final, renderer-ready layout for one ActionLayoutRequest.
-
ActionLayoutResult<
T extends Object> - The final renderer input after optional region ordering is applied.
- ActionMetadata
- User-facing text and renderer lookup data for an action.
- ActionPlacementConstraints
- Shared placement rules for a set of root actions.
- ActionPlacementDelegate
- Assigns action roots to primary, overflow, or hidden regions.
- ActionPlacementPolicy
- The placement rule for one root action.
-
ActionPlacementResult<
T extends Object> -
The mutually exclusive regions produced by
ActionPlacementDelegate. - ActionRegionExtent
- Describes whether one action slot is fixed or flexible.
- ActionRegionFixedExtent
- A fixed action-slot extent.
- ActionRegionFixedGapLayoutEntry
- A structural fixed-gap entry in a layout plan.
- ActionRegionFlexGapLayoutEntry
- A weighted, zero-minimum flex-gap entry in a layout plan.
- ActionRegionFlexibleExtent
- A weighted flexible action-slot extent.
- ActionRegionLayoutDelegate
- Provides the two-stage layout policy around one Core resolution.
- ActionRegionLayoutEntry
- One validated entry in an action-region layout plan.
- ActionRegionLayoutInput
- Input available after the single Core resolution for a layout pass.
- ActionRegionLayoutPlan
- An immutable requested ordering and allocation plan for one region.
- ActionRegionLayoutReservation
- A structural width reservation made before Core resolution.
- ActionRegionLayoutReservationInput
- Input available before the single Core resolution for a layout pass.
- ActionRegionLayoutSlot
- A read-only description of one resolved package-owned slot.
- ActionRegionSlotLayoutEntry
- A package-owned slot entry in a layout plan.
- ActionTooltipPolicy
- Selects the rendered surfaces that show an action tooltip.
-
AdaptiveAction<
T extends Object> - An immutable, platform-neutral action node.
-
AdaptiveMenuDivider<
T extends Object> - A visual separator between groups of adaptive action entries.
-
AdaptiveMenuEntry<
T extends Object> - A platform-neutral entry in an adaptive action declaration.
- AutomaticPlacementPreference
- Automatic-placement preferences used when primary space is limited.
- DefaultActionPlacementDelegate
- The standard deterministic implementation of ActionPlacementDelegate.
-
HiddenAction<
T extends Object> - A root excluded from both visible layout regions.
-
MaterialAdaptiveActions<
T extends Object> - A Material primary and overflow action region backed by ActionLayoutResolver.
- MaterialAdaptiveActionsStyle
- Visual and layout configuration used by MaterialAdaptiveActions.
- RendererCapabilities
- Interaction features available from an action renderer.
- ResolutionDiagnostic
- Developer-facing information about a placement constraint.
-
ResolvedPrimaryAction<
T extends Object> - A primary root and the renderer layout selected for it.
Enums
- ActionPlacement
- The layout region policy for an adaptive action.
- ActionPlacementSplitPolicy
- Whether actions governed by ActionPlacementConstraints may be placed separately.
- ActionRegionFlexFit
- Whether a flexible action slot must consume its allocated share.
- ActionRegionMainAxisDistribution
- The built-in horizontal distribution used by one action region.
- ActionTooltipSurface
- A rendered surface that can show an action tooltip.
- HiddenActionReason
- The reason a root is unavailable in a resolved layout.
- MaterialActionPresentation
- A forced primary-button presentation for MaterialAdaptiveActions.
- ResolutionDiagnosticCode
- Stable machine-readable categories emitted during resolution.
Extension Types
- ActionId
- The stable identity of an action across layout passes.
- ActionLayoutOptionId
- A renderer-owned key for one primary-region widget layout.
- ActionPlacementConstraintId
- The stable identity of root-level placement constraints.
- ActionRegionLayoutSlotId
- Identifies one package-owned slot in an action-region layout plan.
- PrimaryRetentionPriority
- How strongly an automatic action should be retained in primary.
Typedefs
-
MaterialActionButtonBuilder<
T extends Object> = Widget Function(BuildContext context, AdaptiveAction< T> action, VoidCallback? onPressed, MaterialActionButtonDefaultBuilder<T> defaultBuilder) - Overrides a Material primary action button.
-
MaterialActionButtonDefaultBuilder<
T extends Object> = Widget Function(BuildContext context, AdaptiveAction< T> action, VoidCallback? onPressed) - Builds the default Material primary action button.
-
MaterialActionIconBuilder<
T extends Object> = Widget? Function(BuildContext context, AdaptiveAction< T> action) -
Builds the Material icon associated with an adaptive
action. -
MaterialActionLabelLayoutCallback<
T extends Object> = ActionLabelLayout Function(BuildContext context, AdaptiveAction< T> action) - Selects the single-line label layout for one Material root action.
-
MaterialActionMenuBuilder<
T extends Object> = List< Widget> ? Function(BuildContext context, AdaptiveAction<T> action) -
Builds the complete Material menu content for one adaptive
action. -
MaterialActionPresentationCallback<
T extends Object> = MaterialActionPresentation? Function(BuildContext context, AdaptiveAction< T> action) -
Selects a Material primary-button presentation for one root
action. - MaterialOverflowButtonBuilder = Widget Function(BuildContext context, VoidCallback onPressed, MaterialOverflowButtonDefaultBuilder defaultBuilder)
- Overrides the Material overflow-menu trigger.
- MaterialOverflowButtonDefaultBuilder = Widget Function(BuildContext context, VoidCallback onPressed)
- Builds the default Material overflow-menu trigger.