ComPopupMenu class

弹出菜单组件

一个功能丰富的弹出菜单组件，支持自定义触发方式、位置和样式。 具有智能位置计算、无障碍支持和优化的性能。

参数说明：

Inheritance

Constructors

ComPopupMenu.new({Key? key, required Widget child, required Widget? menuBuilder, PressType pressType = PressType.singleClick, ComPopupMenuController? controller, Color? arrowColor, bool showArrow = true, Color barrierColor = Colors.black12, double arrowSize = 14.0, double horizontalMargin = 16.0, double verticalMargin = 4.0, PreferredPosition? position, void menuOnChange(bool)?, bool enablePassEvent = true, String? semanticLabel, bool excludeFromSemantics = false})
const

Properties

arrowColor → Color?
箭头颜色
final
arrowSize → double
箭头大小
final
barrierColor → Color
遮罩层颜色
final
child → Widget
触发菜单的子组件
final
controller → ComPopupMenuController?
控制器
final
enablePassEvent → bool
是否允许点击事件穿透到下层组件 仅在 barrierColor 为透明时有效
final
excludeFromSemantics → bool
是否从语义树中排除
final
hashCode → int
The hash code for this object.
no setterinherited
horizontalMargin → double
水平边距
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
菜单内容构建器
final
菜单状态变化回调
final
position → PreferredPosition?
首选位置
final
pressType → PressType
触发方式
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticLabel → String?
语义化标签
final
showArrow → bool
是否显示箭头
final
verticalMargin → double
垂直边距
final

Methods

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

Static Methods

options({Key? key, required Widget child, required List<PopupMenuOption> options, Color? backgroundColor, BorderRadius? borderRadius, double? width, PressType pressType = PressType.singleClick, ComPopupMenuController? controller, PreferredPosition? position, bool showArrow = true, Color? arrowColor, void onMenuChanged(bool)?}) → ComPopupMenu
创建一个包含多个选项的菜单
text({Key? key, required Widget child, required String text, TextStyle? textStyle, EdgeInsets? padding, Color? backgroundColor, BorderRadius? borderRadius, double? width, PressType pressType = PressType.singleClick, ComPopupMenuController? controller, PreferredPosition? position, bool showArrow = true, Color? arrowColor, void onMenuChanged(bool)?}) → ComPopupMenu
创建一个简单的文本菜单