ReactterBuilder<T extends ReactterContext?> class

A StatelessWidget that gets the ReactterContext's instance of T from the closest ancestor of ReactterProvider and exposes it through the first parameter of builder callback.

ReactterBuilder<AppContext>(
  builder: (appContext, context, child) {
    return Text("state: ${appContext.stateA.value}");
  },
)

NOTE: ReactterBuilder is read-only by default, this means it only renders once.

Use id property to find a instances of T with an identify.

Use listenStates property to listen states, and when it changed, ReactterBuilder's builder callback re-built.

Use listenAll property as true to listen all states, and when it changed, ReactterBuilder's builder callback re-built.

CONSIDER Use child property to pass a Widget that you want to build it once. The ReactterBuilder pass it through the builder callback, so you can incorporate it into your build:

ReactterBuilder<AppContext>(
  listenAll: true,
  child: Text("This widget build only once"),
  builder: (appContext, context, child) {
    return Column(
      children: [
        Text("state: ${appContext.stateHook.value}"),
        child,
      ],
    );
  },
)

See also:

• ReactterProvider, a StatelessWidget that provides a ReactterContext's instance of T to widget tree that can be access through the BuildContext.
• ReactterContext, a base-class that allows to manages the ReactterHooks.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• ReactterBuilder

Constructors

ReactterBuilder({Key? key, String? id, ListenStates<T>? listenStates, bool listenAll = false, ListenHooks<T>? listenHooks, bool listenAllHooks = false, Widget? child, InstanceBuilder<T>? builder})

const

Properties

builder → InstanceBuilder<T>?

Exposes the BuilderContext along with the child.

final

child → Widget?

Provides a widget , which render only once.

final

hashCode → int

The hash code for this object.

no setter, inherited

id → String?

Id of T.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

listenAll → bool

Watchs all states to re-build

final

listenAllHooks → bool

Watchs all hooks to re-build

final

listenHooks → ListenHooks<T>?

Watchs specific hooks to re-build

final

listenStates → ListenStates<T>?

Watchs specific states to re-build

final

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.

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