ReactiveRefreshIndicator class

This is a customization of the RefreshIndicator widget that is reactive in design. This makes it much easier to integrate into code that has multiple avenues of refresh instigation. That is, refreshing in response to the user pulling down a ListView, but also in response to some other stimuli, like swiping a header left or right.

Instead of onRefresh being asynchronous as it is in RefreshIndicator, it is synchronous. Consequently, instead of determining the visibility of the refresh indicator on your behalf, you must tell the control yourself via isRefreshing. The onRefresh callback is only executed if the user instigates a refresh via a pull-to-refresh gesture.

Inheritance

Constructors

ReactiveRefreshIndicator({Key? key, required Widget child, double displacement = 40.0, bool isRefreshEnabled = true, required bool isRefreshing, required RefreshCallback onRefresh, Color? color, Color? backgroundColor, ScrollNotificationPredicate notificationPredicate = defaultScrollNotificationPredicate})
const

Properties

backgroundColor → Color?
final
child → Widget
final
color → Color?
final
displacement → double
final
hashCode → int
The hash code for this object.
no setterinherited
isRefreshEnabled → bool
final
isRefreshing → bool
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
notificationPredicate → ScrollNotificationPredicate
final
onRefresh → RefreshCallback
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() → ReactiveRefreshIndicatorState
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