MultiProcessorProvider class

Merges multiple ProcessorProvider widgets into one widget tree.

MultiProcessorProvider improves the readability and eliminates the need to nest multiple ProcessorProviders.

By using MultiProcessorProvider we can go from:

ProcessorProvider<EventToStateProcessorA>(
  create: (BuildContext context) => EventToStateProcessorA(),
  child: ProcessorProvider<EventToStateProcessorB>(
    create: (BuildContext context) => EventToStateProcessorB(),
    child: ProcessorProvider<EventToStateProcessorC>(
      create: (BuildContext context) => EventToStateProcessorC(),
      child: ChildA(),
    )
  )
)

to:

MultiProcessorProvider(
  providers: [
    ProcessorProvider<EventToStateProcessorA>(
      create: (BuildContext context) => EventToStateProcessorA(),
    ),
    ProcessorProvider<EventToStateProcessorB>(
      create: (BuildContext context) => EventToStateProcessorB(),
    ),
    ProcessorProvider<EventToStateProcessorC>(
      create: (BuildContext context) => EventToStateProcessorC(),
    ),
  ],
  child: ChildA(),
)

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

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• Nested
• MultiBlocProvider
• MultiProcessorProvider

Constructors

MultiProcessorProvider({Key? key, required List<ProcessorProvider<EventToStateProcessor>> processorProviders, required Widget child})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

inherited

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

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