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
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ComPopupMenu
Constructors
- ComPopupMenu({Key? key, required Widget child, 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, 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