ProviderRef<State> class abstract

An object used by providers to interact with other providers and the life-cycles of the application.

See also:

  • read and watch, two methods that allows a provider to consume other providers.
  • onDispose, a method that allows performing a task when the provider is destroyed.
  • state, the value currently exposed by this providers.
Implemented types

Constructors

ProviderRef()

Properties

container → ProviderContainer
The ProviderContainer that this provider is associated with.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state ↔ State
Obtains the state currently exposed by this provider.
getter/setter pair

Methods

listen<T>(AlwaysAliveProviderListenable<T> provider, void listener(T? previous, T next), {bool fireImmediately, void onError(Object error, StackTrace stackTrace)?}) → RemoveListener
Listen to a provider and call listener whenever its value changes.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onDispose(void cb()) → void
Adds a listener to perform an operation right before the provider is destroyed.
inherited
read<T>(ProviderBase<T> provider) → T
Read the state associated with a provider, without listening to that provider.
inherited
refresh<State>(ProviderBase<State> provider) → State
Re-create the state of a provider and return the new state.
inherited
toString() → String
A string representation of this object.
inherited
watch<T>(AlwaysAliveProviderListenable<T> provider) → T
Obtains the state of a provider and cause the state to be re-evaluated when that provider emits a new value.
inherited

Operators

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