BaseChangeNotifier<T, E> class abstract

Inheritance

Constructors

BaseChangeNotifier()

Properties

busy → bool
true, if the callback which was triggered in the run method is finished or not.
no setter
data ↔ T?
Get the provider data.
getter/setter pair
error ↔ E?
Get the provider error (typically a DioError type).
getter/setter pair
hasData → bool
Whether the provider at some point has data.
no setter
hasError → bool
Whether the provider at some point has error.
no setter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
onData ↔ void Function(T data)?
getter/setter pair
onError ↔ void Function(E? error)?
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state → ProviderState
Get the provider state which is either loading or idle
no setter

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
clear() → void
Sets data and error to null.
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
idle() → void
Calling idle() will set the state to ProviderState.idle if the loadingType is stateLoading, otherwise it will call the onHideFullScreenLoadingDialog() method in order to hide any fullscreen loading dialog.
loading() → void
Calling loading() will set the state to ProviderState.loading which then notify all listeners.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
onHideFullScreenLoadingDialog() → void
Must be implemented if the loadingType is set to loadingType.fullScreenLoading in order to hide the fullscreen loading dialog.
onShowFullScreenLoadingDialog() → void
Must be implemented if the loadingType is set to loadingType.fullScreenLoading in order to show a fullscreen loading dialog.
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
run(Future<void> callback(), {int? loadingType = LoadingType.stateLoading}) → Future<void>
An async method that triggers an async callback (typically process) which sets the provider in its selected state.
toString() → String
A string representation of this object.
inherited

Operators

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