SelectableText class

A run of selectable text with a single style.

The SelectableText widget displays a string of text with a single style. The string might break across multiple lines or might all be displayed on the same line depending on the layout constraints.

The style argument is optional. When omitted, the text will use the style from the closest enclosing DefaultTextStyle. If the given style's TextStyle.inherit property is true (the default), the given style will be merged with the closest enclosing DefaultTextStyle. This merging behavior is useful, for example, to make the text bold while using the default font family and size.

SelectableText(
  'Hello! How are you?',
  textAlign: TextAlign.center,
  style: TextStyle(fontWeight: FontWeight.bold),
)

Using the SelectableText.rich constructor, the SelectableText widget can display a paragraph with differently styled TextSpans. The sample that follows displays "Hello beautiful world" with different styles for each word.

const SelectableText.rich(
  TextSpan(
    text: 'Hello', // default text style
    children: <TextSpan>[
      TextSpan(text: ' beautiful ', style: TextStyle(fontStyle: FontStyle.italic)),
      TextSpan(text: 'world', style: TextStyle(fontWeight: FontWeight.bold)),
    ],
  ),
)

Interactivity

To make SelectableText react to touch events, use callback onTap to achieve the desired behavior.

See also:

  • Text, which is the non selectable version of this widget.
  • TextField, which is the editable version of this widget.
Inheritance

Constructors

SelectableText(String data, {Key key, FocusNode focusNode, TextStyle style, StrutStyle strutStyle, TextAlign textAlign, TextDirection textDirection, double textScaleFactor, bool showCursor: false, bool autofocus: false, ToolbarOptions toolbarOptions, int minLines, int maxLines, double cursorWidth: 2.0, double cursorHeight, Radius cursorRadius, Color cursorColor, DragStartBehavior dragStartBehavior: DragStartBehavior.start, bool enableInteractiveSelection: true, GestureTapCallback onTap, ScrollPhysics scrollPhysics, TextHeightBehavior textHeightBehavior, TextWidthBasis textWidthBasis})
Creates a selectable text widget. [...]
const
SelectableText.rich(TextSpan textSpan, {Key key, FocusNode focusNode, TextStyle style, StrutStyle strutStyle, TextAlign textAlign, TextDirection textDirection, double textScaleFactor, bool showCursor: false, bool autofocus: false, ToolbarOptions toolbarOptions, int minLines, int maxLines, double cursorWidth: 2.0, double cursorHeight, Radius cursorRadius, Color cursorColor, DragStartBehavior dragStartBehavior: DragStartBehavior.start, bool enableInteractiveSelection: true, GestureTapCallback onTap, ScrollPhysics scrollPhysics, TextHeightBehavior textHeightBehavior, TextWidthBasis textWidthBasis})
Creates a selectable text widget with a TextSpan. [...]
const

Properties

autofocus bool
Whether this text field should focus itself if nothing else is already focused. [...]
final
cursorColor Color
The color to use when painting the cursor. [...]
final
cursorHeight double
How tall the cursor will be. [...]
final
cursorRadius Radius
How rounded the corners of the cursor should be. [...]
final
cursorWidth double
How thick the cursor will be. [...]
final
data String
The text to display. [...]
final
dragStartBehavior DragStartBehavior
Determines the way that drag start behavior is handled. [...]
final
enableInteractiveSelection bool
Whether to enable user interface affordances for changing the text selection. [...]
final
focusNode FocusNode
Defines the focus for this widget. [...]
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
maxLines int
The maximum number of lines for the text to span, wrapping if necessary. [...]
final
minLines int
The minimum number of lines to occupy when the content spans fewer lines. [...]
final
onTap GestureTapCallback
Called when the user taps on this selectable text. [...]
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
scrollPhysics ScrollPhysics
The ScrollPhysics to use when vertically scrolling the input. [...]
final
selectionEnabled bool
Same as enableInteractiveSelection. [...]
read-only
showCursor bool
Whether to show cursor. [...]
final
strutStyle StrutStyle
The strut style used for the vertical layout. [...]
final
style TextStyle
The style to use for the text. [...]
final
textAlign TextAlign
How the text should be aligned horizontally. [...]
final
textDirection TextDirection
The directionality of the text. [...]
final
textHeightBehavior TextHeightBehavior
Defines how the paragraph will apply TextStyle.height to the ascent of the first line and descent of the last line. [...]
final
textScaleFactor double
The number of font pixels for each logical pixel. [...]
final
textSpan TextSpan
The text to display as a TextSpan. [...]
final
textWidthBasis TextWidthBasis
Defines how to measure the width of the rendered text.
final
toolbarOptions ToolbarOptions
Configuration of toolbar options. [...]
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
createState() → _SelectableTextState
Creates the mutable state for this widget at a given location in the tree. [...]
override
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. [...]
override
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
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 ==(Object other) bool
The equality operator. [...]
@nonVirtual, inherited