LoadingStateHandlerController class
A controller for LoadingStateHandlerWidget.
This controller is used to control the state of the LoadingStateHandlerWidget. It is not necessary to use a StatefulWidget or trigger a rebuild when changing the state of the widget. The controller provides a simple way to set the state of the widget.
The controller can be used to set the state of the widget to CurrentStateEnum.normal, CurrentStateEnum.loading, CurrentStateEnum.data, CurrentStateEnum.empty, or CurrentStateEnum.error.
The LoadingStateHandlerWidget takes a controller property which is an instance of LoadingStateHandlerController. The controller is used to control the state of the widget.
When the state of the widget is changed, the LoadingStateHandlerWidget will rebuild with the new state.
- Inheritance
-
- Object
- ChangeNotifier
- ValueNotifier<
CurrentStateEnum> - LoadingStateHandlerController
Constructors
- LoadingStateHandlerController.new({CurrentStateEnum? initialState})
- Creates a new LoadingStateHandlerController.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value ↔ CurrentStateEnum
-
The current value stored in this notifier.
getter/setter pairinherited
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
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
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
setData(
) → void - Sets the state of the widget to CurrentStateEnum.data.
-
setEmpty(
) → void - Sets the state of the widget to CurrentStateEnum.empty.
-
setError(
) → void - Sets the state of the widget to CurrentStateEnum.error.
-
setLoading(
) → void - Sets the state of the widget to CurrentStateEnum.loading.
-
setNormal(
) → void - Sets the state of the widget to CurrentStateEnum.normal.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited