BaseSliverExpanded class

Inheritance
Available extensions

Constructors

BaseSliverExpanded.new()

Properties

child → Widget?
The widget below this widget in the tree.
finalinherited
debugRandomColor → Widget

Available on Widget, provided by the WidgetExtensions extension

no setter
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
marginZero → Widget

Available on Widget, provided by the WidgetMarginX extension

no setter
paddingZero → Widget

Available on Widget, provided by the WidgetPaddingX extension

no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sliverBox → Widget

Available on Widget, provided by the WidgetSliverBoxX extension

no setter

Methods

align(AlignmentGeometry alignment, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

对齐
alignBottom() → Widget

Available on Widget, provided by the WidgetExtensions extension

对齐 底部
alignCenter() → Widget

Available on Widget, provided by the WidgetExtensions extension

对齐 中间
alignLeft() → Widget

Available on Widget, provided by the WidgetExtensions extension

对齐 左边
alignRight() → Widget

Available on Widget, provided by the WidgetExtensions extension

对齐 右边
alignTop() → Widget

Available on Widget, provided by the WidgetExtensions extension

对齐 顶部
aspectRatio({Key? key, required double aspectRatio}) → Widget

Available on Widget, provided by the WidgetExtensions extension

backgroundColor(Color color, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

背景颜色
backgroundImage(DecorationImage image, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

背景图片
border({Key? key, double? all, double? left, double? right, double? top, double? bottom, Color color = const Color(0xFF000000), BorderStyle style = BorderStyle.solid}) → Widget

Available on Widget, provided by the WidgetExtensions extension

边框
borderRadius({Key? key, double? all, double? topLeft, double? topRight, double? bottomLeft, double? bottomRight}) → Widget

Available on Widget, provided by the WidgetExtensions extension

圆角
boxShadow({Key? key, Color color = const Color(0xFF000000), Offset offset = Offset.zero, double blurRadius = 0.0, double spreadRadius = 0.0}) → Widget

Available on Widget, provided by the WidgetExtensions extension

阴影
card({Key? key, double? radius, Color? color, Color? shadowColor, double? blurRadius}) → Widget

Available on Widget, provided by the WidgetExtensions extension

卡片
center({Key? key, double? widthFactor, double? heightFactor}) → Widget

Available on Widget, provided by the WidgetExtensions extension

clipOval({Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

裁剪 oval
clipRect({Key? key, CustomClipper<Rect>? clipper, Clip clipBehavior = Clip.hardEdge}) → Widget

Available on Widget, provided by the WidgetExtensions extension

裁剪 rect
clipRRect({Key? key, double? all, double? topLeft, double? topRight, double? bottomLeft, double? bottomRight, CustomClipper<RRect>? clipper, Clip clipBehavior = Clip.antiAlias}) → Widget

Available on Widget, provided by the WidgetExtensions extension

裁剪圆角
constrained({Key? key, double? width, double? height, double minWidth = 0.0, double maxWidth = double.infinity, double minHeight = 0.0, double maxHeight = double.infinity}) → Widget

Available on Widget, provided by the WidgetExtensions extension

约束
createElement() → SingleChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) → RenderSliver
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
decorated({Key? key, Color? color, DecorationImage? image, BoxBorder? border, BorderRadius? borderRadius, List<BoxShadow>? boxShadow, Gradient? gradient, BlendMode? backgroundBlendMode, BoxShape shape = BoxShape.rectangle, DecorationPosition position = DecorationPosition.background}) → Widget

Available on Widget, provided by the WidgetExtensions extension

盒子装饰器
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
elevation(double elevation, {Key? key, BorderRadiusGeometry borderRadius = BorderRadius.zero, Color shadowColor = const Color(0xFF000000)}) → Widget

Available on Widget, provided by the WidgetExtensions extension

elevation
expanded({Key? key, int flex = 1}) → Widget

Available on Widget, provided by the WidgetExtensions extension

expanded 撑满
fittedBox({Key? key, BoxFit fit = BoxFit.contain, AlignmentGeometry alignment = Alignment.centerLeft, Clip clipBehavior = Clip.none}) → Widget

Available on Widget, provided by the WidgetExtensions extension

flexible({Key? key, int flex = 1, FlexFit fit = FlexFit.loose}) → Widget

Available on Widget, provided by the WidgetExtensions extension

弹性布局 flexible
fractionallySizedBox({Key? key, AlignmentGeometry alignment = Alignment.center, double? widthFactor, double? heightFactor}) → Widget

Available on Widget, provided by the WidgetExtensions extension

gestures({Key? key, GestureOnTapChangeCallback? onTapChange, GestureTapDownCallback? onTapDown, GestureTapUpCallback? onTapUp, GestureTapCallback? onTap, GestureTapCancelCallback? onTapCancel, GestureTapDownCallback? onSecondaryTapDown, GestureTapUpCallback? onSecondaryTapUp, GestureTapCancelCallback? onSecondaryTapCancel, GestureTapCallback? onDoubleTap, GestureLongPressCallback? onLongPress, GestureLongPressStartCallback? onLongPressStart, GestureLongPressMoveUpdateCallback? onLongPressMoveUpdate, GestureLongPressUpCallback? onLongPressUp, GestureLongPressEndCallback? onLongPressEnd, GestureDragDownCallback? onVerticalDragDown, GestureDragStartCallback? onVerticalDragStart, GestureDragUpdateCallback? onVerticalDragUpdate, GestureDragEndCallback? onVerticalDragEnd, GestureDragCancelCallback? onVerticalDragCancel, GestureDragDownCallback? onHorizontalDragDown, GestureDragStartCallback? onHorizontalDragStart, GestureDragUpdateCallback? onHorizontalDragUpdate, GestureDragEndCallback? onHorizontalDragEnd, GestureDragCancelCallback? onHorizontalDragCancel, GestureDragDownCallback? onPanDown, GestureDragStartCallback? onPanStart, GestureDragUpdateCallback? onPanUpdate, GestureDragEndCallback? onPanEnd, GestureDragCancelCallback? onPanCancel, GestureScaleStartCallback? onScaleStart, GestureScaleUpdateCallback? onScaleUpdate, GestureScaleEndCallback? onScaleEnd, GestureForcePressStartCallback? onForcePressStart, GestureForcePressPeakCallback? onForcePressPeak, GestureForcePressUpdateCallback? onForcePressUpdate, GestureForcePressEndCallback? onForcePressEnd, HitTestBehavior? behavior, bool excludeFromSemantics = false, DragStartBehavior dragStartBehavior = DragStartBehavior.start}) → Widget

Available on Widget, provided by the WidgetExtensions extension

手势
height(double height, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

约束 高度
inkWell({Key? key, dynamic onTap()?, double? borderRadius}) → Widget

Available on Widget, provided by the WidgetExtensions extension

limitedBox({Key? key, double maxWidth = double.infinity, double maxHeight = double.infinity}) → Widget

Available on Widget, provided by the WidgetExtensions extension

限制盒子 最大宽高
marginAll(double margin) → Widget

Available on Widget, provided by the WidgetMarginX extension

marginOnly({double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0}) → Widget

Available on Widget, provided by the WidgetMarginX extension

marginSymmetric({double horizontal = 0.0, double vertical = 0.0}) → Widget

Available on Widget, provided by the WidgetMarginX extension

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
offstage({Key? key, bool offstage = true}) → Widget

Available on Widget, provided by the WidgetExtensions extension

偏移
onLongPress(GestureTapCallback? onLongPress, {Key? key, HitTestBehavior? behavior, bool excludeFromSemantics = false, DragStartBehavior dragStartBehavior = DragStartBehavior.start}) → Widget

Available on Widget, provided by the WidgetExtensions extension

长按手势
onTap(GestureTapCallback? onTap, {Key? key, HitTestBehavior? behavior, bool excludeFromSemantics = false, DragStartBehavior dragStartBehavior = DragStartBehavior.start}) → Widget

Available on Widget, provided by the WidgetExtensions extension

手势
opacity(double opacity, {Key? key, bool alwaysIncludeSemantics = false}) → Widget

Available on Widget, provided by the WidgetExtensions extension

透明度
overflow({Key? key, AlignmentGeometry alignment = Alignment.center, double? minWidth, double? maxWidth, double? minHeight, double? maxHeight}) → Widget

Available on Widget, provided by the WidgetExtensions extension

溢出
padding({Key? key, EdgeInsetsGeometry? value, double? all, double? horizontal, double? vertical, double? top, double? bottom, double? left, double? right}) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距
paddingAll(double padding) → Widget

Available on Widget, provided by the WidgetPaddingX extension

paddingBottom(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 下
paddingHorizontal(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 横向
paddingLeft(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 左
paddingOnly({double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0}) → Widget

Available on Widget, provided by the WidgetPaddingX extension

paddingRight(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 右
paddingSymmetric({double horizontal = 0.0, double vertical = 0.0}) → Widget

Available on Widget, provided by the WidgetPaddingX extension

paddingTop(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 上
paddingVertical(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 纵向
positioned({Key? key, double? left, double? top, double? right, double? bottom, double? width, double? height}) → Widget

Available on Widget, provided by the WidgetExtensions extension

stack布局 位置
ripple({Key? key, Color? focusColor, Color? hoverColor, Color? highlightColor, Color? splashColor, InteractiveInkFeatureFactory? splashFactory, double? radius, ShapeBorder? customBorder, bool enableFeedback = true, bool excludeFromSemantics = false, FocusNode? focusNode, bool canRequestFocus = true, bool autoFocus = false, bool enable = true}) → Widget

Available on Widget, provided by the WidgetExtensions extension

涟漪
safeArea({Key? key, bool top = true, bool bottom = true, bool left = true, bool right = true, EdgeInsets minimum = EdgeInsets.zero}) → Widget

Available on Widget, provided by the WidgetExtensions extension

安全区
scale({Key? key, double? all, double? x, double? y, Offset? origin, AlignmentGeometry alignment = Alignment.center, bool transformHitTests = true}) → Widget

Available on Widget, provided by the WidgetExtensions extension

比例缩放
scrollable({Key? key, Axis scrollDirection = Axis.vertical, bool reverse = false, bool? primary, ScrollPhysics? physics, ScrollController? controller, DragStartBehavior dragStartBehavior = DragStartBehavior.start, EdgeInsetsGeometry? padding}) → Widget

Available on Widget, provided by the WidgetExtensions extension

滚动视图
semanticsLabel(String label, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

语义调试 MaterialApp.showSemanticsDebugger: true,
sliverPadding({Key? key, EdgeInsetsGeometry? value, double? all, double? horizontal, double? vertical, double? top, double? bottom, double? left, double? right}) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距
sliverPaddingBottom(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 下
sliverPaddingHorizontal(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 横向
sliverPaddingLeft(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 左
sliverPaddingRight(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 右
sliverPaddingTop(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 上
sliverPaddingVertical(double val) → Widget

Available on Widget, provided by the WidgetExtensions extension

内间距 纵向
sliverToBoxAdapter({Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

SliverToBoxAdapter
tight({double? width, double? height, Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

约束 宽高
tightSize(double size, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

约束 宽高 size
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
transform({Key? key, required Matrix4 transform, Offset? origin, AlignmentGeometry? alignment, bool transformHitTests = true}) → Widget

Available on Widget, provided by the WidgetExtensions extension

transforms Matrix4
translate({Key? key, required Offset offset, bool transformHitTests = true}) → Widget

Available on Widget, provided by the WidgetExtensions extension

translate 变化位置
unconstrained({Key? key, TextDirection? textDirection, AlignmentGeometry alignment = Alignment.center, Axis? constrainedAxis, Clip clipBehavior = Clip.none}) → Widget

Available on Widget, provided by the WidgetExtensions extension

updateRenderObject(BuildContext context, covariant RenderObject 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.
inherited
width(double width, {Key? key}) → Widget

Available on Widget, provided by the WidgetExtensions extension

约束 宽度

Operators

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