RefreshProgressIndicator class

An indicator for the progress of refreshing the contents of a widget.

Typically used for swipe-to-refresh interactions. See RefreshIndicator for a complete implementation of swipe-to-refresh driven by a Scrollable widget.

The indicator arc is displayed with valueColor, an animated value. To specify a constant color use: AlwaysStoppedAnimation<Color>(color).

See also:

• RefreshIndicator, which automatically displays a CurvedCircularProgressIndicator when the underlying vertical scrollable is overscrolled.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• ProgressIndicator
• CurvedCircularProgressIndicator
• RefreshProgressIndicator

Constructors

RefreshProgressIndicator({Key? key, double? value, Color? backgroundColor, Color? color, Animation<Color?>? valueColor, double? strokeWidth, String? semanticsLabel, String? semanticsValue})

Creates a refresh progress indicator.

const

Properties

animationDuration → Duration?

final, inherited

backgroundColor → Color?

Background color of that fills the circle under the refresh indicator.

no setter, override

color → Color?

The progress indicator's color.

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

semanticsLabel → String?

The SemanticsProperties.label for this progress indicator.

final, inherited

semanticsValue → String?

The SemanticsProperties.value for this progress indicator.

final, inherited

strokeWidth → double?

Stroke width

final, inherited

value → double?

If non-null, the value of this progress indicator.

final, inherited

valueColor → Animation<Color?>?

The progress indicator's color as an animated value.

final, inherited

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<CurvedCircularProgressIndicator>

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