ComMarqueeList class

跑马灯列表组件（无缝循环滚动）

一个专门用于显示列表项目的跑马灯组件，支持无缝循环滚动。 适用于公告栏、新闻列表等场景。

主要特性：

  • 支持垂直和水平滚动
  • 可自定义可见项目数量
  • 支持项目间距设置
  • 支持鼠标悬停暂停
  • 内置控制器支持

使用示例：

ComMarqueeList(
  children: [
    Text('第一条公告'),
    Text('第二条公告'),
    Text('第三条公告'),
  ],
  direction: MarqueeDirection.up,
  visibleItemCount: 2,
  itemHeight: 40.0,
)

参数说明：

Inheritance

Constructors

ComMarqueeList({Key? key, required List<Widget> children, MarqueeDirection direction = MarqueeDirection.up, double speed = 30.0, int visibleItemCount = 3, double itemSpacing = 8.0, bool infinite = true, bool autoStart = true, int pauseDuration = 0, double itemHeight = 60.0, double itemWidth = 120.0, MarqueeController? controller, bool pauseOnHover = false, VoidCallback? onComplete})
const

Properties

autoStart → bool
是否自动开始
final
children → List<Widget>
列表Widget数据
final
controller → MarqueeController?
控制器
final
direction → MarqueeDirection
滚动方向
final
hashCode → int
The hash code for this object.
no setterinherited
infinite → bool
是否无限循环
final
itemHeight → double
项目高度（垂直滚动时使用）
final
itemSpacing → double
项目间距
final
itemWidth → double
项目宽度（水平滚动时使用）
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onComplete → VoidCallback?
滚动完成回调
final
pauseDuration → int
每轮滚动完成后的停留时间（毫秒）
final
pauseOnHover → bool
是否在鼠标悬停时暂停
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
speed → double
滚动速度
final
visibleItemCount → int
显示的项目数量
final

Methods

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