SliverListGrid class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- SliverListGrid
- 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