MultiBlocProvider class

Merges multiple BlocProvider widgets into one widget tree.

MultiBlocProvider improves the readability and eliminates the need to nest multiple BlocProviders.

By using MultiBlocProvider we can go from:

BlocProvider<BlocA>(
  create: (BuildContext context) => BlocA(),
  child: BlocProvider<BlocB>(
    create: (BuildContext context) => BlocB(),
    child: BlocProvider<BlocC>(
      create: (BuildContext context) => BlocC(),
      child: ChildA(),
    )
  )
)

to:

MultiBlocProvider(
  providers: [
    BlocProvider<BlocA>(
      create: (BuildContext context) => BlocA(),
    ),
    BlocProvider<BlocB>(
      create: (BuildContext context) => BlocB(),
    ),
    BlocProvider<BlocC>(
      create: (BuildContext context) => BlocC(),
    ),
  ],
  child: ChildA(),
)

MultiBlocProvider converts the BlocProvider list into a tree of nested BlocProvider widgets. As a result, the only advantage of using MultiBlocProvider is improved readability due to the reduction in nesting and boilerplate.

Inheritance

Object
DiagnosticableTree
Widget
StatelessWidget
Nested
MultiBlocProvider

Implemented types

Widget

Available extensions

NexoWidgetX

Constructors

MultiBlocProvider({required List<SingleChildWidget> providers, required Widget child, Key? key}): Merges multiple BlocProvider widgets into one widget tree.

Properties

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

Methods

align(AlignmentGeometry alignment) → Widget: Available on Widget, provided by the NexoWidgetX extension
Выравнивает виджет внутри родителя.
aspectRatio(double aspectRatio) → Widget: Available on Widget, provided by the NexoWidgetX extension
Соотношение сторон.
build(BuildContext context) → Widget: Describes the part of the user interface represented by this widget.
inherited
center() → Widget: Available on Widget, provided by the NexoWidgetX extension
Центрирует виджет.
clipRRect(double radius) → Widget: Available on Widget, provided by the NexoWidgetX extension
Скруглённая обрезка с радиусом radius.
createElement() → _NestedElement: 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
decorated(Decoration decoration) → Widget: Available on Widget, provided by the NexoWidgetX extension
Произвольный декор (фон, градиент, рамка, тень) под содержимым.
expanded({int flex = 1}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Растягивает внутри Row/Column; требует предка Flex.
flexible({int flex = 1, FlexFit fit = FlexFit.loose}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Гибкое место внутри Row/Column; требует предка Flex.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onTap(VoidCallback? onTap, {HitTestBehavior behavior = HitTestBehavior.opaque}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Обработка тапа; behavior управляет областью приёма касаний.
opacity(double opacity) → Widget: Available on Widget, provided by the NexoWidgetX extension
Полупрозрачность.
pad(double all) → Widget: Available on Widget, provided by the NexoWidgetX extension
Оборачивает в Padding со всеми сторонами all.
padOnly({double left = 0, double top = 0, double right = 0, double bottom = 0}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Отступы по отдельным сторонам (нулевые по умолчанию).
padSymmetric({double horizontal = 0, double vertical = 0}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Симметричные отступы по горизонтали и вертикали.
safeArea({bool top = true, bool bottom = true, bool left = true, bool right = true}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Отступ от системных элементов экрана (чёлка, системные жесты).
sized({double? width, double? height}) → Widget: Available on Widget, provided by the NexoWidgetX extension
Фиксированный размер.
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

MultiBlocProvider class

Constructors

Properties

Methods

Operators

nexo library