DecoratorBox<T> class

Widget 装饰器

Inheritance
Available extensions

Constructors

DecoratorBox({Key? key, required Widget child, List<DecoratorPendant<T>> headers = const [], List<DecoratorPendant<T>> footers = const [], List<DecoratorPendant<T>> suffixes = const [], List<DecoratorPendant<T>> prefixes = const [], bool expanded = true, DecoratorBoxDecorativeBuilder<T>? decoration, Listenable? listenable, DecoratorBoxStatusCallback? onFocus, DecoratorBoxStatusCallback? onEditing, DecoratorBoxStatusValueCallback<T>? onValue, DecoratorBoxSpacing spacing = const DecoratorBoxSpacing(), DecoratorBoxHeadersFootersDirection direction = const DecoratorBoxHeadersFootersDirection()})
const

Properties

child → Widget
final
decoration → DecoratorBoxDecorativeBuilder<T>?
DecoratorBox 样式
final
direction → DecoratorBoxHeadersFootersDirection
headers, footers 方向
final
expanded → bool
是否 Expanded
final
footers → List<DecoratorPendant<T>>
child 尾部
final
hashCode → int
The hash code for this object.
no setterinherited
headers → List<DecoratorPendant<T>>
child 头部
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
listenable → Listenable?
添加 Listenable 监听 当 listenable 发生变化时，会重新构建 DecoratorBox 注意：listenable 必须是 Listenable 或 Listenable 的子类
final
onEditing → DecoratorBoxStatusCallback?
是否在编辑中
final
onFocus → DecoratorBoxStatusCallback?
是否有焦点监听
final
onValue → DecoratorBoxStatusValueCallback<T>?
value 回调
final
prefixes → List<DecoratorPendant<T>>
child 后缀
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
spacing → DecoratorBoxSpacing
间距
final
suffixes → List<DecoratorPendant<T>>
child 前缀
final
toExpansionTilesRotationIconBuilder → ExpansionTilesRotationIconBuilder

Available on Widget, provided by the ExtensionExpansionTiles extension

no setter
toToggleRotateIconBuilder → ToggleRotateIconBuilder

Available on Widget, provided by the ExtensionWidgetToggleRotate extension

no setter

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
buildDecoratorBox(DecoratorBoxStatus<T> status) → Widget
outer
buildInner(DecoratorBoxStatus<T> status) → Widget
inner
buildPendant(List<DecoratorPendant<T>> list, DecoratorPendantPosition positioned, DecoratorBoxStatus<T> status, {Axis direction = Axis.horizontal}) → Widget?
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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
toDecoratorPendant<T>({DecoratorPendantPosition positioned = DecoratorPendantPosition.outer, bool maintainSize = false, bool? needFocus, bool? needEditing, DecoratorPendantValueCallback<T?>? needValue}) → DecoratorPendant<T>

Available on Widget, provided by the ExtensionWidgetDecoratorBox extension

toDecoratorPendantBuilder<T>({DecoratorPendantPosition positioned = DecoratorPendantPosition.outer, bool maintainSize = false, bool? needFocus, bool? needEditing, DecoratorPendantValueCallback<T?>? needValue}) → DecoratorPendant<T>

Available on Widget, provided by the ExtensionWidgetDecoratorBox extension

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