PagedValueGridView<K, V> class

A GridView that loads more pages when the user scrolls to the end of the grid.

Use loadMoreTriggerIndex to set the index of the item that triggers the loading of the next page.

Inheritance

Constructors

PagedValueGridView.new({Key? key, required PagedValueNotifier<K, V> controller, required SliverGridDelegate gridDelegate, required PagedValueScrollViewIndexedWidgetBuilder<V> itemBuilder, required WidgetBuilder emptyBuilder, required PagedValueScrollViewLoadMoreErrorBuilder loadMoreErrorBuilder, required WidgetBuilder loadMoreIndicatorBuilder, required WidgetBuilder loadingBuilder, required Widget errorBuilder(BuildContext, StreamChatError), int loadMoreTriggerIndex = 3, Axis scrollDirection = Axis.vertical, bool reverse = false, ScrollController? scrollController, bool? primary, ScrollPhysics? physics, bool shrinkWrap = false, EdgeInsetsGeometry? padding, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true, double? cacheExtent, int? semanticChildCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, String? restorationId, Clip clipBehavior = Clip.hardEdge})
Creates a new instance of PagedValueGridView widget.
const

Properties

addAutomaticKeepAlives → bool
Whether to wrap each child in an AutomaticKeepAlive.
final
addRepaintBoundaries → bool
Whether to wrap each child in a RepaintBoundary.
final
addSemanticIndexes → bool
Whether to wrap each child in an IndexedSemantics.
final
cacheExtent → double?
The viewport has an area before and after the visible area to cache items that are about to become visible when the user scrolls.
final
clipBehavior → Clip
The content will be clipped (or not) according to this option.
final
controller → PagedValueNotifier<K, V>
The PagedValueNotifier used to control the list of items.
final
dragStartBehavior → DragStartBehavior
Determines the way that drag start behavior is handled.
final
emptyBuilder → WidgetBuilder
A builder that is called to build the empty state of the list.
final
errorBuilder → Widget Function(BuildContext, StreamChatError)
A builder that is called to build the error state of the list.
final
gridDelegate → SliverGridDelegate
A delegate that controls the layout of the children within the PagedValueGridView.
final
hashCode → int
The hash code for this object.
no setterinherited
itemBuilder → PagedValueScrollViewIndexedWidgetBuilder<V>
A builder that is called to build items in the PagedValueGridView.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
keyboardDismissBehavior → ScrollViewKeyboardDismissBehavior
ScrollViewKeyboardDismissBehavior the defines how this ScrollView will dismiss the keyboard automatically.
final
loadingBuilder → WidgetBuilder
A builder that is called to build the loading state of the list.
final
loadMoreErrorBuilder → PagedValueScrollViewLoadMoreErrorBuilder
A builder that is called to build the load more error state of the list.
final
loadMoreIndicatorBuilder → WidgetBuilder
A builder that is called to build the load more indicator of the list.
final
loadMoreTriggerIndex → int
The index to take into account when triggering controller.loadMore.
final
padding → EdgeInsetsGeometry?
The amount of space by which to inset the children.
final
physics → ScrollPhysics?
How the scroll view should respond to user input.
final
primary → bool?
Whether this is the primary scroll view associated with the parent PrimaryScrollController.
final
restorationId → String?
Restoration ID to save and restore the scroll offset of the scrollable.
final
reverse → bool
Whether the scroll view scrolls in the reading direction.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollController → ScrollController?
An object that can be used to control the position to which this scroll view is scrolled.
final
scrollDirection → Axis
The axis along which the scroll view scrolls.
final
semanticChildCount → int?
The number of children that will contribute semantic information.
final
shrinkWrap → bool
Whether the extent of the scroll view in the scrollDirection should be determined by the contents being viewed.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<PagedValueGridView<K, V>>
Creates the mutable state for this widget at a given location in the tree.
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
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