TrackerScrollWidget class Null safety

父类

Inheritance

Constructors

TrackerScrollWidget({Key? key, required ScrollView child, List<String> initialInViewIds = const [], double endNotificationOffset = 0.0, VoidCallback? onListEndReached, Duration throttleDuration = const Duration(milliseconds: 200), required IsInViewPortCondition isInViewPortCondition})

Properties

child ScrollView
The widget that should be displayed in the InViewNotifier.
final
endNotificationOffset double
The distance from the bottom of the list where the onListEndReached should be invoked.
final
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
initialInViewIds List<String>
The String list of ids of the child widgets that should be initialized as inView when the list view is built for the first time.
final
isInViewPortCondition IsInViewPortCondition
The function that defines the area within which the widgets should be notified as inView.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onListEndReached VoidCallback?
The function that is invoked when the list scroll reaches the end or the endNotificationOffset if provided.
final
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
scrollDirection Axis
The axis along which the scroll view scrolls.
final
throttleDuration Duration
The duration to be used for throttling the scroll notification. Defaults to 200 milliseconds.
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _TrackerScrollWidgetState
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.
@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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.
@nonVirtualinherited