DefaultTextStyleTransition class Null safety

Animated version of a DefaultTextStyle that animates the different properties of its TextStyle.

link
The following code implements the DefaultTextStyleTransition that shows a transition between thick blue font and thin red font.
To create a local project with this code sample, run:
flutter create --sample=widgets.DefaultTextStyleTransition.1 mysample

See also:

Inheritance

Constructors

DefaultTextStyleTransition({Key? key, required Animation<TextStyle> style, required Widget child, TextAlign? textAlign, bool softWrap = true, TextOverflow overflow = TextOverflow.clip, int? maxLines})
Creates an animated DefaultTextStyle whose TextStyle animation updates the widget.
const

Properties

child → Widget
The widget below this widget in the tree.
final
hashCode → int
The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
listenable → Listenable
The Listenable to which this widget is listening.
finalinherited
maxLines → int?
An optional maximum number of lines for the text to span, wrapping if necessary.
final
overflow → TextOverflow
How visual overflow should be handled.
final
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
softWrap → bool
Whether the text should break at soft line breaks.
final
style → Animation<TextStyle>
The animation that controls the descendants' text style.
read-only
textAlign → TextAlign?
How the text should be aligned horizontally.
final

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() → State<AnimatedWidget>
Subclasses typically do not override this method.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
protected">@protectedinherited
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 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.
nonVirtual">@nonVirtualinherited