PagingGrid<PageKey, Value> class

A grid list that manages pages and scroll position to read more data.

Inheritance

Constructors

PagingGrid({Key? key, required SliverGridDelegate gridDelegate, required DataSource<PageKey, Value> dataSource, required TypedWidgetBuilder<Value> builder, required ExceptionWidgetBuilder errorBuilder, required Widget initialLoadingWidget, Widget prependLoadingWidget = const SizedBox.shrink(), Widget appendLoadingWidget = const SizedBox.shrink(), Widget emptyWidget = const SizedBox.shrink(), EdgeInsets padding = EdgeInsets.zero, Axis scrollDirection = Axis.vertical, bool reverse = false, ScrollController? controller, bool? primary, ScrollPhysics? physics, ScrollBehavior? scrollBehavior, Key? center, double anchor = 0.0, bool shrinkWrap = false, double? cacheExtent, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, Clip clipBehavior = Clip.hardEdge})
Creates a scrollable, 2D array of widgets that are created on demand.
const

Properties

anchor → double
see CustomScrollView.anchor
final
appendLoadingWidget → Widget
The widget that is shown when the data is loading at the end of the list.
final
builder → TypedWidgetBuilder<Value>
The builder that builds a widget for the given item and index.
final
cacheExtent → double?
see CustomScrollView.cacheExtent
final
center → Key?
see CustomScrollView.center
final
clipBehavior → Clip
see CustomScrollView.clipBehavior
final
controller → ScrollController?
see CustomScrollView.controller
final
dataSource → DataSource<PageKey, Value>
The data source that provides pages from loader.
final
dragStartBehavior → DragStartBehavior
see CustomScrollView.dragStartBehavior
final
emptyWidget → Widget
The widget that is shown when the data is empty.
final
errorBuilder → ExceptionWidgetBuilder
The builder that builds a widget for the given exception.
final
gridDelegate → SliverGridDelegate
The delegate that controls the layout of the children within the grid.
final
hashCode → int
The hash code for this object.
no setterinherited
initialLoadingWidget → Widget
The widget that is shown when the data is loading for the first time.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
keyboardDismissBehavior → ScrollViewKeyboardDismissBehavior
see CustomScrollView.keyboardDismissBehavior
final
padding → EdgeInsets
The padding around the grid.
final
physics → ScrollPhysics?
see CustomScrollView.physics
final
prependLoadingWidget → Widget
The widget that is shown when the data is loading at the beginning of the list.
final
primary → bool?
see CustomScrollView.primary
final
reverse → bool
see CustomScrollView.reverse
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollBehavior → ScrollBehavior?
see CustomScrollView.scrollBehavior
final
scrollDirection → Axis
see CustomScrollView.scrollDirection
final
shrinkWrap → bool
see CustomScrollView.shrinkWrap
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, 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