ExpandableText class

具备展开收起功能的文字面板

布局规则： 在文本的右下角有更多或者收起按钮 当文本超过指定的maxLines时，剩余文本隐藏 点击更多，则显示全部文本

  ExpandableText(
     text: '在文本的右下角有更多或者收起按钮',
  )

  ExpandableText(
     text: '具备展开收起功能的文字面板，在文本的右下角有更多或者收起按钮',
     maxLines: 2,
     onExpanded: (value) {
     },
  )

相关文本组件如下:

  • BubbleText, 气泡背景的展开收起文本组件
  • InsertInfo, 气泡背景的文本组件
Inheritance

Constructors

ExpandableText({Key? key, required String text, int? maxLines = 1000000, TextStyle? textStyle, TextExpandedCallback? onExpanded, Color? color})
const

Properties

color → Color?
更多按钮渐变色的初始色 默认白色
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxLines → int?
显示的最多行数
final
onExpanded → TextExpandedCallback?
展开或者收起的时候的回调
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
text → String
显示的文本
final
textStyle → TextStyle?
文本的样式
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _ExpandableTextState
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