ProgressIndicatorBuilder<T extends Listenable> class

Progress indicator to show progress via ChangeNotifier.

Pass ChangeNotifier to listenable and a callback to return the rate of progress to progress.

The value returned by progress should be between 0.0 and 1.0.

Pass the actual widget to builder.

ChangeNotifierを介して進行状況を表すプログレスインジケーターを表示します。

listenableにChangeNotifierを渡し、progressに進行率を返すためのコールバックを渡します。

progressで返す値は0.0〜1.0の間で返してください。

builderに実際のウィジェットを渡します。

デフォルトだとdefaultCircularProgressIndicatorが指定されます。他にdefaultLinearProgressIndicatorも利用可能です。

Inheritance

Constructors

ProgressIndicatorBuilder({Key? key, required T listenable, required double progress(T listenable), Widget builder(double value) = defaultCircularProgressIndicator}): Progress indicator to show progress via ChangeNotifier.
const

builder → Widget Function(double value): Pass the actual indicator widget to builder.
final
hashCode → int: The hash code for this object.
no setterinherited
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
listenable → T: ChangeNotifier] to be monitored.
final
progress → double Function(T listenable): Callback to return the rate of progress.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>: 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, 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

defaultCircularProgressIndicator(double value) → Widget: Builder for displaying CircularProgressIndicator.
defaultLinearProgressIndicator(double value) → Widget: Builder for displaying LinearProgressIndicator.