AlignTransition class

Animated version of an Align that animates its Align.alignment property.

Here's an illustration of the DecoratedBoxTransition widget, with it's decoration animated by a CurvedAnimation set to Curves.decelerate:

See also:

  • PositionedTransition, a widget that animates its child from a start position to an end position over the lifetime of the animation.
  • RelativePositionedTransition, a widget that transitions its child's position based on the value of a rectangle relative to a bounding box.
  • SizeTransition, a widget that animates its own size and clips and aligns its child.
  • SlideTransition, a widget that animates the position of a widget relative to its normal position.
Inheritance

Constructors

AlignTransition({Key key, @required Animation<AlignmentGeometry> alignment, @required Widget child, double widthFactor, double heightFactor })
Creates an animated Align whose AlignmentGeometry animation updates the widget. [...]
const

Properties

alignment → Animation<AlignmentGeometry>
The animation that controls the child's alignment.
read-only
child → Widget
The widget below this widget in the tree. [...]
final
heightFactor → double
If non-null, the child's height factor, see Align.heightFactor.
final
widthFactor → double
If non-null, the child's width factor, see Align.widthFactor.
final
hashCode → int
The hash code for this object. [...]
read-only, inherited
key → Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
listenable → Listenable
The Listenable to which this widget is listening. [...]
final, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

build(BuildContext context) → Widget
Override this method to build widgets that depend on the state of the listenable (e.g., the current value of the animation).
override
createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
createState() → _AnimatedState
Subclasses typically do not override this method.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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 toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns 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 ==(dynamic other) → bool
The equality operator. [...]
inherited