AnimationMixin<T extends StatefulWidget> mixin Null safety

Extends your state class with the ability to manage an arbitrary number of AnimationController instances. It takes care of initialization and disposing of these instances.

Most use cases can be realized by start using controller as your main AnimationController instance.

You can create additional instances of AnimationController by calling createController.

See API documentation for controller and createController for examples.

Superclass Constraints
Implemented types


controller AnimationController
Returns the main AnimationController instance for this state class.
widget → T
The current configuration.
context BuildContext
The location in the tree where this widget builds.
mounted bool
Whether this State object is currently in a tree.
hashCode int
The hash code for this object.
runtimeType Type
A representation of the runtime type of the object.


activate() → void
Called when this object is reinserted into the tree after having been removed via deactivate.
build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
createController({bool unbounded = false, int? fps}) AnimationController
Creates an additional AnimationController instance that gets initialized and disposed by this mixin.
createTicker(TickerCallback onTick) Ticker
Creates a ticker with the given callback.
deactivate() → void
Called when this object is removed from the tree.
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
didChangeDependencies() → void
Called when a dependency of this State object changes.
didUpdateWidget(covariant T oldWidget) → void
Called whenever the widget configuration changes.
dispose() → void
Called when this object is removed from the tree permanently.
enableDeveloperMode(AnimationController controller) → void
Connects given controller to the closest AnimationDeveloperTools widget to enable developer mode.
initState() → void
Called when this object is inserted into the tree.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
reassemble() → void
Called whenever the application is reassembled during debugging, for example during hot reload.
setState(VoidCallback fn) → void
Notify the framework that the internal state of this object has changed.
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
toString({DiagnosticLevel minLevel =}) String
A string representation of this object.
toStringShort() String
A brief description of this object, usually just the runtimeType and the hashCode.


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