patterns/navigation library

Classes

UiBackSwipeLayeredMetrics
Parallax geometry constants used by the interactive back-swipe region in UiNavigationHost. Declared at the library level so tests can exercise the same numbers the implementation renders.
UiContainerBackdropSpec
Configures the performance tier and appearance of a container backdrop.
UiContainerFlightReveal
Eases child in and out with the ambient UiContainerFlightScope progress instead of popping with the rest of the destination content.
UiContainerFlightScope
Live geometry exposed to content inside an Open UI container transform.
UiContainerPreview
Identifies the thumbnail/preview region inside UiOpenContainer's closedBuilder and the matching region inside its pageBuilder.
UiContainerTransformGeometry
Geometry shared by iOS-style source tiles and their route transition.
UiContainerTransformRoute<T>
A reversible route whose surface expands from sourceRect.
UiContainerTransformTransition
Geometry and reveal primitive used by UiContainerTransformRoute.
UiContentOcclusionSpec
Timing and material used to conceal a content identity swap during a container transform.
UiEdgeSwipePopRegion
Tracks a horizontal drag starting in the leading-edge strip and drives an interactive translation on child, calling onTriggered once the drag passes either the distance or velocity threshold on release.
UiFluidDismissRegion
Experimental: turns a drag anywhere on child into a media-viewer style carry of the page, publishing UiFluidDragState for the route transition to render.
UiFluidDragState
Finger-carried state of a fluid page: offset from the page's resting center and a 0..1 progress toward dismissal.
UiFluidOpenContainer
Experimental: a compact surface that opens its page with UiFluidPageRoute and hides itself while the page is open, so the in-flight copy is the only visible instance.
UiFluidPageRoute<T>
Experimental: a full-screen route whose page grows out of a source rect with the kit's fluid morph and shrinks back into it on pop.
UiFluidRouteTransition
Experimental geometry and reveal primitive used by UiFluidPageRoute.
UiNavigationBackButton
iOS-style back affordance: a chevron, with label kept for accessibility and the title of the long-press history menu even when it isn't painted. Set showLabel to restore the previous chevron-plus-title look for apps that still want it.
UiNavigationBackConfig
UiNavigationBackHistoryItem
UiNavigationBackPopTarget
UiNavigationController
A typed, router-agnostic navigation stack controller.
UiNavigationControllerScope
Runtime navigation context exposed by UiNavigationHost.
UiNavigationHost
Renders the current stack of a UiNavigationController.
UiNavigationScope
Exposes page-level navigation metadata to descendants.
UiNavigationSpec
Declarative metadata for a page's navigation chrome.
UiNavigationStack
Open UI Kit transition host for index-addressed page stacks.
UiNavigationTransition
Transition wrapper used by UiNavigationStack and by custom hosts.
UiNavigatorHistoryObserver
Tracks the full stack of top-level PageRoutes pushed through whichever Navigator this observer is attached to, plus a title registered by each page's own chrome — so UiSliverNavigationBar's long-press-back history menu can show the entire stack for apps using a plain Flutter Navigator (Navigator.push/pushNamed), the same way UiNavigationControllerScope already does for apps built on UiNavigationController.
UiNavigatorHistoryScope
Exposes the UiApp-owned UiNavigatorHistoryObserver to descendants — most directly UiSliverNavigationBar, which reads it as a fallback history source and registers each page's title against it.
UiOpenContainer
Connects a compact source surface to a full-page destination.
UiPageRoute<T>
Open UI Kit's standard PageRoute: UiNavigationTransition visuals (default UiNavigationTransitionStyle.softShift — a fade + subtle shift + scale, not a plain cross-fade) with iOS's progressive edge-swipe-to-pop gesture layered on top via UiCupertinoBackGestureMixin.
UiPageRouteDefaults
App-wide fallback for UiPageRoute's style and swipe-back behavior. UiApp provides this from its own defaultPageTransitionStyle / defaultPageSwipeBackEnabled constructor arguments; BuildContext.pushUiPage reads it whenever a call doesn't override those explicitly, so changing the app-wide default and overriding a single push both work — one isn't an escape hatch that bypasses the other.
UiRouteEntry
A single entry on a UiNavigationController stack.
UiRouteSpec<TArgs, TResult>
A typed route definition.
UiSliverNavigationBar
Sliver-based navigation bar with large-title collapse behavior.
UiSliverStickyRegion
A fixed-height page utility that pins as its content scrolls underneath.

Enums

UiBackSwipeTransition
Interactive back-swipe transition style.
UiContainerBackdropStyle
How the route behind an iOS-style container transform is separated from the expanding surface.
UiContainerFlightDirection
UiContainerPathMotion
Path used by the animated container bounds.
UiContainerSourceFlightLayout
How compact content participates in an iOS-style container flight.
UiContainerTransformStyle
UiNavigationSurface
Visual treatment for the navigation surface.
UiNavigationTransitionStyle
Transition presets for navigation animations.
UiStickyRegionSurface
Surface treatment for UiSliverStickyRegion.

Mixins

UiCupertinoBackGestureMixin<T>
A PageRoute mixin that adds iOS-style interactive edge-swipe-to-go-back support to a route while leaving the visual page transition entirely up to the mixing class's own ModalRoute.buildTransitions override.

Extensions

UiFluidPageNavigation on BuildContext
Experimental: pushes builder on a UiFluidPageRoute that grows out of the widget identified by sourceKey.
UiNavigationHistoryX on UiNavigationController
Back-compat shim. toBackHistoryItems() forwards to UiNavigationController.historyItems — new code should call the controller method directly.
UiPageNavigation on BuildContext
Pushes builder on a UiPageRoute — Open UI Kit's standard page push.