NutsActivityIndicator class

A highly customizable activity indicator (spinner) based on the iOS-style activity indicator from the cupertino package.

Key takeaways from Apple Human Interface Guidelines on Activity Indicators that are relevant to the NutsActivityIndicator class:

  • use activity indicator only when activity cannot be quantified (for example remaining time, task count, data size).
  • keep it moving: only disable animating if the process stalls.

For more information, see

Inheritance

Constructors

NutsActivityIndicator({Key? key, bool animating = true, double radius = 10, double startRatio = 0.5, double endRatio = 1.0, int tickCount = 12, Color activeColor = const Color(0xFF9D9D9D), Color inactiveColor = const Color(0xFFE5E5EA), Duration animationDuration = const Duration(seconds: 1), double relativeWidth = 1})
Creates a highly customizable activity indicator.
const

Properties

activeColor Color
The active color of the small rectangles within the activity indicator.
final
animating bool
Whether the activity indicator is running its animation.
final
animationDuration Duration
The time in which the activity indicator's animation finishes.
final
endRatio double
Radius ratio tells where the rectangles end.
final
hashCode int
The hash code for this object.
no setterinherited
inactiveColor Color
The deactive color of the small rectangles within the activity indicator.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
radius double
Radius of the activity indicator.
final
relativeWidth double
TODO: what is this width value really?
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
startRatio double
Radius ratio tells where the rectangles start.
final
tickCount int
The count of rectangles the activity indicator has.
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _NutsActivityIndicatorState
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