ObserverWidget<State> class

ObserverWidget handles building a widget in response to new states.

Please refer to ListenerWidget if you want to "do" anything in response to state changes such as navigation, showing a dialog, etc...

ObserverWidget(
  controller,
  (state) {
    // return widget here based on Controller's state
    return Container();
  },
)

Inheritance

Available Extensions

Constructors

ObserverWidget(BaseController<State> controller, Widget builder(State), {Key? key}): ObserverWidget handles building a widget in response to new states.
const

builder → Widget Function(State): The builder function which will be invoked on each widget build. The builder takes the current state and must return a widget.
final
controller → BaseController<State>: The controller that the ObserverWidget will interact with.
final
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

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}) → 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