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:

Inheritance

Constructors

ReactterBuilder.new({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 setterinherited
id → String?
Id of T.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
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 setterinherited

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