ElSecondChildWidget class

SingleChildRenderObjectWidget 类似,不过它还支持渲染第二个 Widget 子组件

Inheritance
Available extensions

Constructors

ElSecondChildWidget({Key? key, bool? sizedByParent, required Widget child, Widget? secondChild})
const

Properties

child Widget
代理子组件
final
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
secondChild Widget?
渲染在 child 之上的第二个子组件,它注入给后代的约束会强制与 child 一样大
final
sizedByParent bool?
强制布局尺寸跟随父元素,默认情况下,当 child 不为 null 则尺寸跟随子组件,若为 null 则也跟随父元素
final

Methods

createElement() RenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
override
createRenderObject(BuildContext context) ElRenderSecondChildBox
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
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
didUnmountRenderObject(covariant RenderObject renderObject) → void
This method is called when a RenderObject that was previously associated with this widget is removed from the render tree. The provided RenderObject will be of the same type as the one created by this widget's createRenderObject method.
inherited
noScrollbarBehavior(BuildContext context, {Key? key, bool? overscroll, bool enabled = true}) Widget

Available on Widget, provided by the FlutterWidgetExt extension

不使用祖先提供的默认滚动条,当使用自定义滚动条时请添加此扩展方法,防止与祖先提供的默认滚动条重叠
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
updateRenderObject(BuildContext context, covariant ElRenderSecondChildBox renderObject) → void
Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.
override

Operators

operator ==(Object other) bool
The equality operator.
inherited