LoadingBlocBuilder<B extends BlocBase<S>, S> class

A special BlocBuilder for displaying the lifecycle of a state with a LoadingStatus.

Example:

LoadingBlocBuilder<TestingBloc, TestingState>(
  statusGetter: (state) => state.status,
  initialBuilder: (_, _state) => const Text('Initial'),
  loadingBuilder: (_, _state) => const Text('Loading'),
  successBuilder: (_, _state) => const Text('Success'),
  failureBuilder: (_, _state) => const Text('Failure'),
),

• The successBuilder is the only builder strictly required.
• If loadingBuilder is not supplied, a CircularProgressIndicator will be rendered.
• If initialBuilder is not supplied, a SizedBox will be rendered.
• If failureBuilder is not supplied, an Icon with Icons.error will be rendered.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• LoadingBlocBuilder

Constructors

LoadingBlocBuilder({required LoadingStatus statusGetter(S), required Widget successBuilder(BuildContext, S), Widget initialBuilder(BuildContext, S)?, Widget failureBuilder(BuildContext, S)?, Widget loadingBuilder(BuildContext, S)?, Key? key})

A special BlocBuilder for displaying the lifecycle of a state with a LoadingStatus.

const

Properties

failureBuilder → (Widget Function(BuildContext, S)?)

A builder for the widget built when call fails.

final

hashCode → int

The hash code for this object.

no setter, inherited

initialBuilder → (Widget Function(BuildContext, S)?)

A builder for the widget built initially.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

loadingBuilder → (Widget Function(BuildContext, S)?)

A builder for the widget build when loading.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

statusGetter → LoadingStatus Function(S)

The method that this widget determines which LoadingStatus should be used when deciding what to render

final

successBuilder → Widget Function(BuildContext, S)

A builder for the widget built on successful call.

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}) → 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