AnimatedResponsiveTransition class

A widget that animates smoothly between different responsive layouts when the screen type changes (e.g., during window resize on Desktop/Web).

Performance Design

  • Uses AnimatedSwitcher internally — Flutter's optimized animation engine
  • Layout is selected via a single ScreenType comparison (O(1))
  • No animation triggers on sub-pixel changes — only on ScreenType change
  • Uses RepaintBoundary to isolate animated subtree repaints

Example

AnimatedResponsiveTransition(
  duration: Duration(milliseconds: 300),
  transition: ResponsiveTransitionType.fadeSlide,
  mobile: CompactCard(),
  tablet: MediumCard(),
  desktop: ExpandedCard(),
)
Inheritance

Constructors

AnimatedResponsiveTransition({Key? key, required Widget mobile, Widget? tablet, Widget? smallDesktop, Widget? desktop, Widget? largeDesktop, Duration duration = const Duration(milliseconds: 300), Curve curve = Curves.easeInOut, ResponsiveTransitionType transition = ResponsiveTransitionType.fade, AnimatedSwitcherTransitionBuilder? customTransitionBuilder, AnimatedSwitcherLayoutBuilder? layoutBuilder})
Creates an AnimatedResponsiveTransition.
const

Properties

curve → Curve
The animation curve. Default: Curves.easeInOut.
final
customTransitionBuilder → AnimatedSwitcherTransitionBuilder?
Optional builder for a custom transition. If provided, overrides transition.
final
desktop → Widget?
Widget for desktop screens. Falls back to smallDesktop → tablet → mobile.
final
duration → Duration
Duration of the transition animation. Default: 300ms.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
largeDesktop → Widget?
Widget for large desktop screens. Falls back to desktop chain.
final
layoutBuilder → AnimatedSwitcherLayoutBuilder?
Optional layout builder for the animated switcher.
final
mobile → Widget
Widget for mobile/watch screens. Required as the fallback.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
smallDesktop → Widget?
Widget for small desktop screens. Falls back to tablet → mobile.
final
tablet → Widget?
Widget for tablet screens. Falls back to mobile.
final
transition → ResponsiveTransitionType
The type of transition animation. Default: ResponsiveTransitionType.fade.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited