RxBlocBuilder<B extends RxBlocTypeBase, T> class

RxBlocBuilder is a Flutter widget which requires a bloc from the RxBloc ecosystem, a builder and a state function. RxBlocBuilder handles building the widget in response to new states. RxBlocBuilder is very similar to StreamBuilder but has a more simple API to reduce the amount of boilerplate code needed.

  • The builder function will potentially be called many times and should be a pure function that returns a widget in response to the state.
  • The state function determines which exact state of the bloc will be used.
  • If the bloc parameter is omitted, RxBlocBuilder will automatically perform a lookup using RxBlocProvider and the current BuildContext.
Inheritance

Constructors

RxBlocBuilder({required Stream<T> state(B), required Widget builder(BuildContext, AsyncSnapshot<T>, B), B? bloc, Key? key})
Default RxBlocBuilder constructor
const

Properties

bloc → B?
Optional bloc parameter which can be supplied if the specified bloc type can't be found in the current widget tree. Can be useful if the widget is inside a BuildContext that does not contain a bloc of the specified type
final
builder → Widget Function(BuildContext, AsyncSnapshot<T>, B)
The builder callback which returns a widget, executed every time there is a change in the listened state
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state → Stream<T> Function(B)
The state of the bloc that is being listened to for changes
final

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