AnimatedRotationModifier class

Animated version of Transform.rotate which automatically transitions the child's rotation over a given duration whenever the given rotation changes.

{@tool snippet}

This code defines a widget that uses AnimatedRotation to rotate a FlutterLogo gradually by an eighth of a turn (45 degrees) with each press of the button.

class LogoRotate extends StatefulWidget {
  const LogoRotate({super.key});

  @override
  State<LogoRotate> createState() => LogoRotateState();
}

class LogoRotateState extends State<LogoRotate> {
  double turns = 0.0;

  void _changeRotation() {
    setState(() => turns += 1.0 / 8.0);
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: <Widget>[
        ElevatedButton(
          onPressed: _changeRotation,
          child: const Text('Rotate Logo'),
        ),
        Padding(
          padding: const EdgeInsets.all(50),
          child: AnimatedRotation(
            turns: turns,
            duration: const Duration(seconds: 1),
            child: const FlutterLogo(),
          ),
        ),
      ],
    );
  }
}

{@end-tool}

See also:

Inheritance
Available extensions

Constructors

AnimatedRotationModifier({Key? key, Widget? child, Curve curve = Curves.linear, required Duration duration, VoidCallback? onEnd, Key? modifierKey, required double turns, Alignment alignment = Alignment.center, FilterQuality? filterQuality})
Creates a widget that animates its rotation implicitly.
const

Properties

alignment Alignment
The alignment of the origin of the coordinate system in which the rotation takes place, relative to the size of the box.
final
curve Curve
The curve to apply when animating the parameters of this container.
finalinherited
duration Duration
The duration over which to animate the parameters of this container.
finalinherited
filterQuality FilterQuality?
The filter quality with which to apply the transform as a bitmap operation.
final
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
modifierKey Key?
The actual key of the widget, which Modifier wrapped
finalinherited
onEnd VoidCallback?
Called every time an animation completes.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
turns double
The animation that controls the rotation of the child.
final

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
inherited
buildWithChild(BuildContext context, Widget? child) Widget
A build method that receives an extra child parameter.
override
createElement() SingleChildStatelessElement
Create a SingleChildStatelessElement
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}) 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