PreloadablePageView class

A scrollable and preloadable list that works page by page, which is modified from PageView.

Inheritance

Constructors

PreloadablePageView({Key? key, Axis scrollDirection = Axis.horizontal, bool reverse = false, PageController? controller, ScrollPhysics? physics, bool pageSnapping = true, ValueChanged<int>? onPageChanged, List<Widget> children = const <Widget>[], DragStartBehavior dragStartBehavior = DragStartBehavior.start, String? restorationId, Clip clipBehavior = Clip.hardEdge, ScrollBehavior? scrollBehavior, bool padEnds = true, ValueChanged<PageMetrics>? onPageMetricsChanged, bool callPageChangedAtEnd = true, double? pageMainAxisHintSize, int preloadPagesCount = 0})
Creates a scrollable list that works page by page from an explicit List of widgets.
PreloadablePageView.builder({Key? key, Axis scrollDirection = Axis.horizontal, bool reverse = false, PageController? controller, ScrollPhysics? physics, bool pageSnapping = true, ValueChanged<int>? onPageChanged, required IndexedWidgetBuilder itemBuilder, int? itemCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, String? restorationId, Clip clipBehavior = Clip.hardEdge, ScrollBehavior? scrollBehavior, bool padEnds = true, ValueChanged<PageMetrics>? onPageMetricsChanged, bool callPageChangedAtEnd = true, double? pageMainAxisHintSize, int preloadPagesCount = 0})
Creates a scrollable list that works page by page using widgets that are created on demand.

Properties

callPageChangedAtEnd → bool
The flag to call onPageChanged when page changing is finished, defaults to true, and this means it will behave the same as builtin PageView.
final
childrenDelegate → SliverChildDelegate
Mirrors to PageView.childrenDelegate.
final
clipBehavior → Clip
Mirrors to PageView.clipBehavior.
final
controller → PageController
Mirrors to PageView.controller.
final
dragStartBehavior → DragStartBehavior
Mirrors to PageView.dragStartBehavior.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onPageChanged → ValueChanged<int>?
Mirrors to PageView.onPageChanged.
final
onPageMetricsChanged → ValueChanged<PageMetrics>?
The callback that will be invoked when PageMetrics changed, and callPageChangedAtEnd has no influence on this callback.
final
padEnds → bool
Mirrors to PageView.padEnds.
final
pageMainAxisHintSize → double?
A double value that represents the hint size at page main axis, is used to set the cache extent for preloading page, defaults to MediaQuery.of(context).size.
final
pageSnapping → bool
Mirrors to PageView.pageSnapping.
final
physics → ScrollPhysics?
Mirrors to PageView.physics.
final
preloadPagesCount → int
An integer value that determines number pages that will be preloaded,defaults to 0.
final
restorationId → String?
Mirrors to PageView.restorationId.
final
reverse → bool
Mirrors to PageView.reverse.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollBehavior → ScrollBehavior?
Mirrors to PageView.scrollBehavior.
final
scrollDirection → Axis
Mirrors to PageView.scrollDirection.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<PreloadablePageView>
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