ScrollEdgeListener class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ScrollEdgeListener
Constructors
- ScrollEdgeListener({Key? key, required VoidCallback listener, required Widget child, ScrollEdge edge = ScrollEdge.end, double edgeOffset = 0, bool continuous = false, Duration debounce = Duration.zero, bool dispatch = true})
-
const
Properties
- child → Widget
-
The child widget which should contain a scroll widget.
final
- continuous → bool
-
If true, the listener will be called continuously. If false, the
listener will be called once whenever it is between the
offsetand the edge.final - debounce → Duration
-
The debounce time for the listener.
final
- dispatch → bool
-
Whether the scroll notification should propagate to the ancestor widgets.
final
- edge → ScrollEdge
-
Determines on which edge the listener will be called.
final
- edgeOffset → double
-
The offset from the specified edge.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- listener → VoidCallback
-
Called continuously when the scroll position is between the edgeOffset
and the edge.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< ScrollEdgeListener> -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects 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