StreamProgressBar class

A linear progress indicator styled for the Stream design system.

StreamProgressBar displays a horizontal bar that fills to indicate progress. It supports both determinate (fixed value) and indeterminate (loading animation) states.

Visual properties can be customized per-instance via constructor parameters, or globally via StreamProgressBarThemeData.

{@tool snippet}

Basic determinate progress bar:

StreamProgressBar(value: 0.5)

{@end-tool}

{@tool snippet}

Indeterminate progress bar (loading state):

StreamProgressBar()

{@end-tool}

{@tool snippet}

Customized progress bar:

StreamProgressBar(
  value: 0.75,
  trackColor: Colors.grey.shade200,
  fillColor: Colors.green,
  minHeight: 12,
)

{@end-tool}

Theming

StreamProgressBar uses StreamProgressBarThemeData for default styling.

See also:

• StreamProgressBarThemeData, for customizing progress bar appearance.
• StreamProgressBarTheme, for overriding theme in a widget subtree.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• StreamProgressBar

Constructors

StreamProgressBar({Key? key, double? value, Color? trackColor, Color? fillColor, double? minHeight, BorderRadiusGeometry? borderRadius})

Creates a Stream progress bar.

Properties

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

props → StreamProgressBarProps

The props controlling the appearance and behavior of this progress bar.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

override

createElement() → StatelessElement

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

inherited

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, int wrapWidth = 65}) → 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