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:

Inheritance

Constructors

RefreshProgressIndicator({Key key, double value, Color backgroundColor, Animation<Color> valueColor, double strokeWidth: 2.0, String semanticsLabel, String semanticsValue})
Creates a refresh progress indicator. [...]
const

Properties

backgroundColor → Color
The progress indicator's background color. [...]
final, inherited
hashCode → int
The hash code for this object. [...]
read-only, 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.
read-only, inherited
semanticsLabel → String
The Semantics.label for this progress indicator. [...]
final, inherited
semanticsValue → String
The Semantics.value for this progress indicator. [...]
final, inherited
strokeWidth → double
The width of the line used to draw the circle.
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

createState() → _RefreshProgressIndicatorState
Creates the mutable state for this widget at a given location in the tree. [...]
override
createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protected, inherited
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.debug}) → String
Returns 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 ==(dynamic other) → bool
The equality operator. [...]
inherited