WidgetBuilderSelector class

WidgetBuilderSelectoris a convenience class that will one of two builder methods based on the output of a Stream<bool> This is pretty handy if you want to react to state change like enable/disable in you ViewModel and update the View accordingly. In comparison to WidgetSelector this is best used if the alternative child widgets are large so that you don't want to have them created without using them.

Inheritance

Constructors

WidgetBuilderSelector({required Stream<bool> buildEvents, WidgetBuilder? onTrue, WidgetBuilder? onFalse, ErrorBuilder<String>? errorBuilder, PlaceHolderBuilder? placeHolderBuilder, Key? key, bool? initialValue})
Creates a new WidgetBuilderSelector instance stream : Stream<bool>that signals that the this Widget should be updated onTrue : builder that should be executed if an item with value true is received onFalse: builder that should be executed if an item with value false is received
const

Properties

errorBuilder → ErrorBuilder<String>?
final
hashCode int
The hash code for this object.
no setterinherited
initialData bool?
finalinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onFalse WidgetBuilder?
final
onTrue WidgetBuilder?
final
placeHolderBuilder → PlaceHolderBuilder?
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
stream Stream<bool>
finalinherited

Methods

build(BuildContext context, bool data) Widget
createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _ReactiveBaseWidgetState<bool>
Creates the mutable state for this widget at a given 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
errorBuild(BuildContext context, Object error) Widget
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onFalseWidget(BuildContext context) Widget
onTrueWidget(BuildContext context) Widget
placeHolderBuild(BuildContext context) Widget
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