ListenableProvider<T extends Listenable?> class

Listens to a Listenable, expose it to its descendants and rebuilds dependents whenever the listener emits an event.

For usage information, see ChangeNotifierProvider, a subclass of ListenableProvider made for ChangeNotifier.

You will generally want to use ChangeNotifierProvider instead. But ListenableProvider is available in case you want to implement Listenable yourself.

Inheritance
Implementers

Constructors

ListenableProvider({Key? key, required Create<T> create, Dispose<T>? dispose, bool? lazy, TransitionBuilder? builder, Component? child})
Creates a Listenable using create and subscribes to it.
ListenableProvider.value({Key? key, required T value, UpdateShouldNotify<T>? updateShouldNotify, TransitionBuilder? builder, Component? child})
Provides an existing Listenable.

Properties

builder → TransitionBuilder?
Syntax sugar for obtaining a BuildContext that can read the provider created.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one component replaces another component in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

build(BuildContext context) → Iterable<Component>
Describes the part of the user interface represented by this component.
inherited
buildWithChild(BuildContext context, Component? child) → Iterable<Component>
A build method that receives an extra child parameter.
inherited
createElement() → _InheritedProviderElement<T>
Creates a StatelessElement to manage this component's location in the tree.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited