GetTickerProviderStateMixin mixin Null safety

Used like TickerProviderMixin but only with Get Controllers. Simplifies multiple AnimationController creation inside GetxController.


class SplashController extends GetxController with
   GetTickerProviderStateMixin {
 AnimationController first_controller;
 AnimationController second_controller;

 void onInit() {
   final duration = const Duration(seconds: 2);
   first_controller =
       AnimationController.unbounded(duration: duration, vsync: this);
   second_controller =
       AnimationController.unbounded(duration: duration, vsync: this);
   first_controller.addListener(() =>
       print("Animation Controller value: ${first_controller.value}"));
   second_controller.addListener(() =>
       print("Animation Controller value: ${second_controller.value}"));
Superclass Constraints


hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
onStart InternalFinalCallback<void>
Called at the exact moment the widget is allocated in memory. It uses an internal "callable" type, to avoid any @overrides in subclases. This method should be internal and is required to define the lifetime cycle of the subclass.
final, inherited
onDelete InternalFinalCallback<void>
Internal callback that starts the cycle of this controller.
final, inherited
initialized bool
Checks whether the controller has already been initialized.
read-only, inherited
isClosed bool
Checks whether the controller has already been closed.
read-only, inherited
hasListeners bool
read-only, inherited
listeners int
read-only, inherited


createTicker(TickerCallback onTick) Ticker
Creates a ticker with the given callback. [...]
didChangeDependencies(BuildContext context) → void
onClose() → void
Called before onDelete method. onClose might be used to dispose resources used by the controller. Like closing events, or streams before the controller is destroyed. Or dispose objects that can potentially create some memory leaks, like TextEditingControllers, AnimationControllers. Might be useful as well to persist some data on disk.
update([List<Object>? ids, bool condition = true]) → void
Rebuilds GetBuilder each time you call update(); Can take a List of ids, that will only update the matching GetBuilder( id: ), ids can be reused among GetBuilders like group tags. The update will only notify the Widgets, if condition is true.
onInit() → void
Called immediately after the widget is allocated in memory. You might use this to initialize something for the controller.
@mustCallSuper, inherited
onReady() → void
Called 1 frame after onInit(). It is the perfect place to enter navigation events, like snackbar, dialogs, or a new route, or async request.
toString() String
A string representation of this object. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
$configureLifeCycle() → void
addListener(GetStateUpdate listener) Disposer
Register a closure to be called when the object notifies its listeners.
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies.
refresh() → void
@protected, inherited
refreshGroup(Object id) → void
@protected, inherited
notifyChildrens() → void
@protected, inherited
removeListenerId(Object id, VoidCallback listener) → void
dispose() → void
@mustCallSuper, inherited
addListenerId(Object? key, GetStateUpdate listener) Disposer
disposeId(Object id) → void
To dispose an id from future updates(), this ids are registered by GetBuilder() or similar, so is a way to unlink the state change with the Widget from the Controller.


operator ==(Object other) bool
The equality operator. [...]