CupertinoActivityIndicator class Null safety

An iOS-style activity indicator that spins clockwise.

This example shows how CupertinoActivityIndicator can be customized.
To create a local project with this code sample, run:
flutter create --sample=cupertino.CupertinoActivityIndicator.1 mysample

See also:

Inheritance

Constructors

CupertinoActivityIndicator({Key? key, Color? color, bool animating = true, double radius = _kDefaultIndicatorRadius})
Creates an iOS-style activity indicator that spins clockwise.
const
CupertinoActivityIndicator.partiallyRevealed({Key? key, Color? color, double radius = _kDefaultIndicatorRadius, double progress = 1.0})
Creates a non-animated iOS-style activity indicator that displays a partial count of ticks based on the value of progress.
const

Properties

animating bool
Whether the activity indicator is running its animation.
final
color Color?
Color of the activity indicator.
final
hashCode int
The hash code for this object.
@nonVirtual, read-only, inherited
key Key?
Controls how one widget replaces another widget in the tree.
final, inherited
progress double
Determines the percentage of spinner ticks that will be shown. Typical usage would display all ticks, however, this allows for more fine-grained control such as during pull-to-refresh when the drag-down action shows one tick at a time as the user continues to drag down.
final
radius double
Radius of the spinner widget.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() State<CupertinoActivityIndicator>
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.
@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.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.
@nonVirtual, inherited