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}) 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