BlocProviders class
A bloc provider that exposes that merges multiple other BlocProviders into one.
BlocProviders is used to improve the readability and reduce the boilerplate of having many nested providers.
As such, we're going from:
BlocProvider<BlocA>(
initBloc: () => blocA,
child: BlocProvider<BlocB>(
initBloc: () => blocB,
child: BlocProvider<BlocC>(
initBloc: () => blocC,
child: someWidget,
)
)
)
To:
BlocProviders(
blocProviders: [
BlocProvider<BlocA>(initBloc: () => blocA),
BlocProvider<BlocB>(initBloc: () => blocB),
BlocProvider<BlocC>(initBloc: () => blocC),
],
child: someWidget,
)
Technically, these two are identical. BlocProviders will convert the list into a tree. This changes only the appearance of the code.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- BlocProviders
Constructors
-
BlocProviders({Key? key, required List<
BlocProvider< blocProviders, required Widget child})BaseBloc> > -
The
blocProviders
is a list of bloc providers that will be transformed into a tree. The tree is created from top to bottom. The first item because to topmost provider, while the last item it the direct parent ofchild
.
Properties
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
inherited
-
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