ExpandableText class

A stateful widget that displays expandable/collapsible text content with a title.

The ExpandableText widget is useful for displaying long pieces of text in a condensed form. It allows the user to expand or collapse the content by tapping on the title or an icon, making it ideal for showing additional details on demand.

This widget also provides an option to copy the content to the clipboard, accessible through a copy icon button. If the content is null or empty, a placeholder message is shown instead.

Example usage:

ExpandableText(
  title: 'Description',
  content: 'This is a long description that can be expanded or collapsed.',
);

Parameters:

  • title (String): The title of the expandable section, shown as a clickable text.
  • content (String?): The text content to display when expanded. Defaults to 'No Data to show' if null or empty.
  • collapsedLines (int): The number of lines to show when the content is collapsed. Default is 2.

This widget uses an InkWell widget to toggle the expansion state and shows an icon that indicates whether the text is currently expanded or collapsed. The copy icon button allows copying the content.

Inheritance

Constructors

ExpandableText({Key? key, required String title, required String? content, int collapsedLines = 2})
const

Properties

collapsedLines → int
final
content → String?
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
title → String
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>
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.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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, int wrapWidth = 65}) → 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.
inherited