Provider<T> class
Use a Provider to implement a stateless provider. Useful for dependency injection. Often used with overrideWithValue during initialization of the app.
Set describeState to customize the description of the state.
See BaseNotifier.describeState.
Set debugLabel to customize the debug label of the provider.
- Implemented types
Properties
- customDebugLabel → String?
-
finalinherited
- debugLabel → String
-
A label to be used in debug messages and
by the RefenaTracingPage.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
-
provider
→ BaseProvider<
ImmutableNotifier< T> , T> -
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createState(
ProxyRef ref) → ImmutableNotifier< T> -
getSelectedState(
ImmutableNotifier< T> notifier, T state) → T -
The default behavior to return the whole state when
using
ref.watch(provider).inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
overrideWithBuilder(
T builder(Ref ref)) → ProviderOverride< ImmutableNotifier< T> , T> - Overrides the state of a provider with a predefined value.
-
overrideWithFuture(
Future< T> builder(Ref ref)) → ProviderOverride<ImmutableNotifier< T> , T> - Overrides the state of a provider with a predefined value. Here, you can use a future to build the state.
-
overrideWithValue(
T value) → ProviderOverride< ImmutableNotifier< T> , T> - Overrides the state of a provider with a predefined value.
-
select<
R> (R selector(T state)) → SelectedWatchable< ImmutableNotifier< T> , T, R> -
Used for ref.watch(provider.select(...)).
Select a part of the state.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
Subclasses should not override this method.
It is used internally by RefenaContainer to map a provider to a state.
inherited