TextSelectionTheme class Null safety

An inherited widget that defines the appearance of text selection in this widget's subtree.

Values specified here are used for TextField and SelectableText properties that are not given an explicit non-null value.

link
Here is an example of a text selection theme that applies a blue cursor color with light blue selection handles to the child text field. 
const TextSelectionTheme(
  data: TextSelectionThemeData(
    cursorColor: Colors.blue,
    selectionHandleColor: Colors.lightBlue,
  ),
  child: TextField(),
)

This widget also creates a DefaultSelectionStyle for its subtree with data.

Inheritance

Constructors

TextSelectionTheme({Key? key, required TextSelectionThemeData data, required Widget child})
Creates a text selection theme widget that specifies the text selection properties for all widgets below it in the widget tree.
const

Properties

child → Widget
The widget below this widget in the tree.
read-onlyoverride
data → TextSelectionThemeData
The properties for descendant TextField and SelectableText widgets.
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
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

createElement() → InheritedElement
Inflates this configuration to a concrete instance.
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
updateShouldNotify(covariant TextSelectionTheme oldWidget) → bool
Whether the framework should notify widgets that inherit from this widget.
override
wrap(BuildContext context, Widget child) → Widget
Return a copy of this inherited theme with the specified child.
override

Operators

operator ==(Object other) → bool
The equality operator.
nonVirtual">@nonVirtualinherited

Static Methods

of(BuildContext context) → TextSelectionThemeData
Returns the data from the closest TextSelectionTheme ancestor. If there is no ancestor, it returns ThemeData.textSelectionTheme. Applications can assume that the returned value will not be null.