RelativePositionedTransition class

Animated version of Positioned which transitions the child's position based on the value of rect relative to a bounding box with the specified size.

Only works if it's the child of a Stack.

Here's an illustration of the RelativePositionedTransition widget, with it's rect animated by a CurvedAnimation set to Curves.elasticInOut:

See also:

Inheritance

Constructors

RelativePositionedTransition({Key key, @required Animation<Rect> rect, @required Size size, @required Widget child })
Create an animated version of Positioned. [...]
const

Properties

child Widget
The widget below this widget in the tree. [...]
final
rect Animation<Rect>
The animation that controls the child's size and position. [...]
read-only
size Size
The Positioned widget's offsets are relative to a box of this size whose origin is 0,0.
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