DefaultTextStyleTransition class Null safety

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

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, TextOverflow overflow, 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, 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
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-only, inherited
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, 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 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, inherited