AnimatedOMeshGradient class

An implicitly animated widget that animates the mesh of an OMeshGradient.

A change in the mesh will be animated over the duration with the given curve.

Usage example:

// state value
double center = 0.0;

// in the build method

return GestureDetector(
  onTap: () {
    setState(() {
      center = center == 0.5 ? 0.7 : 0.5;
    });
  },
  child: AnimatedOMeshGradient(
    mesh: OMeshRect(
      width: 3,
      height: 3,
      vertices: [
       (0.0, 0.0).v,
       (0.5, 0.0).v,
       (1.0, 0.0).v, // top row

       (0.0, 0.5).v,
       (center, center).v,
       (1.0, 0.5).v, // middle row

       (0.0, 1.0).v,
       (0.5, 1.0).v,
       (1.0, 1.0).v, // bottom row
      ],
      colors: [
        Colors.red,
        Colors.green,
        Colors.blue,
        Colors.yellow,
        Colors.purple,
        Colors.orange,
        Colors.pink,
        Colors.teal,
        Colors.cyan,
      ],
      colorSpace: OMeshColorSpace.lab,
    ),
    duration: const Duration(seconds: 1),
    curve: Curves.easeInOut,
  ),
);

In the above example, the mesh will animate between two states when the widget is tapped.

See also:

• OMeshGradient, The non implicitly animated version of this widget.
• OMeshRect, a class that describes a mesh of vertices with colors.
• OMeshRectTween, a class that interpolates between two OMeshRect.
• AnimatedContainer, a widget that animates changes in its properties.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• AnimatedOMeshGradient

Constructors

AnimatedOMeshGradient.new({required OMeshRect mesh, required Duration duration, Curve? curve, int? tessellation, DebugMode? debugMode, Size? size, Key? key})

Creates a new AnimatedOMeshGradient with the given mesh.

const

Properties

curve → Curve?

The curve to apply when animating the mesh.

final

debugMode → DebugMode?

Whether to enable visual cues to assist the visualization of a mesh gradient.

final

duration → Duration

The duration of the animation.

final

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

mesh → OMeshRect

The mesh that will be rendered.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

size → Size?

The preferred size of the widget. If null, it will sized according to the minimum size of the parent constraints.

final

tessellation → int?

The number of vertices that will be interpolated between each passed vertex.

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