ApiStateWidget<T, E> class

A declarative Flutter widget that renders based on ApiState.

Drop-in replacement for the typical BlocBuilder pattern.

Example:

ApiStateWidget<List<Gallery>, ApiError>(
  state: state.apiState,
  loadingBuilder:  () => const GalleryShimmer(),
  emptyBuilder:    () => const EmptyGalleries(),
  builder:         (items) => GalleryGrid(items),
  errorBuilder:    (msg) => ErrorView(msg),
)

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• ApiStateWidget

Constructors

ApiStateWidget({Key? key, required ApiState<T, E> state, required Widget loadingBuilder(), required Widget builder(T data), required Widget errorBuilder(String message), Widget emptyBuilder()?, Widget networkErrorBuilder()?, Widget idleBuilder()?})

const

Properties

builder → Widget Function(T data)

Shown when data is available (required)

final

emptyBuilder → Widget Function()?

Shown when data is empty – optional, falls back to SizedBox.shrink()

final

errorBuilder → Widget Function(String message)

Shown when the request failed (required)

final

hashCode → int

The hash code for this object.

no setter, inherited

idleBuilder → Widget Function()?

Shown for idle state – optional, falls back to SizedBox.shrink()

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

loadingBuilder → Widget Function()

Shown while request is in-flight (required)

final

networkErrorBuilder → Widget Function()?

Shown for connectivity failures – optional, falls back to errorBuilder

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

state → ApiState<T, E>

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