HugeListView<T> class

Inheritance

Constructors

HugeListView({Key? key, @Deprecated('Use `scrollController` instead.') ItemScrollController? controller, ItemScrollController? scrollController, HugeListViewController? listViewController, required int pageSize, required int startIndex, @Deprecated('Use `totalItemCount` of the `listViewController` instead.') int? totalCount, required HugeListViewPageFuture<T> pageFuture, required ScrollThumbBuilder thumbBuilder, required HugeListViewItemBuilder<T> itemBuilder, required IndexedWidgetBuilder placeholderBuilder, WidgetBuilder? waitBuilder, @Deprecated('Use `emptyBuilder` instead.') WidgetBuilder? emptyResultBuilder, WidgetBuilder? emptyBuilder, HugeListViewErrorBuilder? errorBuilder, double velocityThreshold = 128, ValueChanged<int>? firstShown, Axis scrollDirection = Axis.vertical, Color thumbBackgroundColor = Colors.white, Color thumbDrawColor = Colors.grey, double thumbHeight = 48.0, bool alwaysVisibleThumb = true, Duration thumbAnimationDuration = kThemeAnimationDuration, Duration thumbVisibleDuration = const Duration(milliseconds: 1000), EdgeInsets? padding, LruMap<int, HugeListViewPageResult<T>>? lruMap})
const

Properties

alwaysVisibleThumb → bool
Whether the scroll thumb slides out when not used, defaults to always visible.
final
controller → ItemScrollController?
An optional ScrollablePositionedList controller for jumping or scrolling to an item.
final
emptyBuilder → WidgetBuilder?
Called to build a widget when the list is empty.
final
emptyResultBuilder → WidgetBuilder?
Called to build a widget when the list is empty.
final
errorBuilder → HugeListViewErrorBuilder?
Called to build a widget when there is an error.
final
firstShown → ValueChanged<int>?
Event to call with the index of the topmost visible item in the viewport while scrolling. Can be used to display the current letter of an alphabetically sorted list, for instance.
final
hashCode → int
The hash code for this object.
no setterinherited
itemBuilder → HugeListViewItemBuilder<T>
Called to build an individual item with the specified index.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
listViewController → HugeListViewController?
An optional HugeListViewController controller to control the behavior of the list.
final
lruMap → LruMap<int, HugeListViewPageResult<T>>?
The optional predefined LruMap to be used for cache, convenient for using LruMap outside HugeListView.
final
padding → EdgeInsets?
The amount of space by which to inset the list.
final
pageFuture → HugeListViewPageFuture<T>
Called to build items for the list with the specified pageIndex.
final
pageSize → int
Size of the page. HugeListView only keeps a few pages of items in memory any time.
final
placeholderBuilder → IndexedWidgetBuilder
Called to build a placeholder while the item is not yet availabe.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollController → ItemScrollController?
An optional ScrollablePositionedList controller for jumping or scrolling to an item.
final
scrollDirection → Axis
The axis along which the list view scrolls.
final
startIndex → int
Index of an item to initially align within the viewport.
final
thumbAnimationDuration → Duration
How quickly the scroll thumb animates in and out. Ignored if alwaysVisibleThumb is true.
final
thumbBackgroundColor → Color
Background color of scroll thumb, defaults to white.
final
thumbBuilder → ScrollThumbBuilder
Called to build the thumb. One of DraggableScrollbarThumbs.RoundedRectThumb, DraggableScrollbarThumbs.ArrowThumb or DraggableScrollbarThumbs.SemicircleThumb, or build your own.
final
thumbDrawColor → Color
Drawing color of scroll thumb, defaults to gray.
final
thumbHeight → double
Height of scroll thumb, defaults to 48.
final
thumbVisibleDuration → Duration
How long the scroll thumb stays visible before disappearing. Ignored if alwaysVisibleThumb is true.
final
totalCount → int?
Total number of items in the list.
final
velocityThreshold → double
The velocity above which the individual items stop being drawn until the scrolling rate drops.
final
waitBuilder → WidgetBuilder?
Called to build a progress widget while the whole list is initialized.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → HugeListViewState<T>
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}) → 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