ScrollMixin mixin Null safety

Superclass Constraints

Properties

scroll ScrollController
final
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
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

Methods

onInit() → void
Called immediately after the widget is allocated in memory. You might use this to initialize something for the controller.
override
onEndScroll() Future<void>
onTopScroll() Future<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.
override
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.
inherited
$configureLifeCycle() → void
inherited
toString() String
A string representation of this object. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

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