SliverListGrid class

组合SliverList、SliverGrid、SliverFixedExtentList

Inheritance
Available Extensions

Constructors

SliverListGrid({Key? key, int crossAxisCount = 1, double mainAxisSpacing = 0, double crossAxisSpacing = 0, double childAspectRatio = 1, bool crossAxisFlex = false, double maxCrossAxisExtent = 10, double? mainAxisExtent, IndexedWidgetBuilder? itemBuilder, int? itemCount, IndexedWidgetBuilder? separatorBuilder, ChildIndexGetter? findChildIndexCallback, SemanticIndexCallback? semanticIndexCallback, double? itemExtent, bool addAutomaticKeepALives = false, bool addRepaintBoundaries = false, bool addSemanticIndexes = true, Widget placeholder = const PlaceholderChild(), Widget? prototypeItem})
const
SliverListGrid.count({Key? key, int crossAxisCount = 1, double mainAxisSpacing = 0, double crossAxisSpacing = 0, double childAspectRatio = 1, bool crossAxisFlex = false, double maxCrossAxisExtent = 10, double? mainAxisExtent, List<Widget>? children, SemanticIndexCallback? semanticIndexCallback, bool addAutomaticKeepALives = false, bool addRepaintBoundaries = false, bool addSemanticIndexes = true, Widget placeholder = const PlaceholderChild(), Widget? prototypeItem, double? itemExtent})
const

Properties

addAutomaticKeepALives → bool
final
addRepaintBoundaries → bool
final
addSemanticIndexes → bool
final
childAspectRatio → double
final
children → List<Widget>?
少量子组件可使用 children
final
crossAxisCount → int
横轴的等长度元素数量
final
crossAxisFlex → bool
开启宽度自适应 需设置 maxCrossAxisExtent
final
crossAxisSpacing → double
横轴元素之间的距离
final
findChildIndexCallback → ChildIndexGetter?
final
hashCode → int
The hash code for this object.
no setterinherited
itemBuilder → IndexedWidgetBuilder?
渲染子组件
final
itemCount → int?
final
itemExtent → double?
itemExtent!=null && prototypeItem!=null 使用 SliverFixedExtentList itemExtent!=null 使用 SliverFixedExtentList
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
mainAxisExtent → double?
final
mainAxisSpacing → double
主轴元素之间的距离
final
maxCrossAxisExtent → double
横轴元素最大的大小
final
placeholder → Widget
itemCount==0 || children.isisEmpty 时 显示的组件
final
prototypeItem → Widget?
prototypeItem!=null 使用 SliverPrototypeExtentList
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticIndexCallback → SemanticIndexCallback?
final
separatorBuilder → IndexedWidgetBuilder?
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
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
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}) → 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