ScrollMixin mixin
Mixin to manage scroll events when the scroll position is at the top or bottom.
- Superclass constraints
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- initialized → bool
-
Checks whether the controller has already been initialized.
no setterinherited
- isClosed → bool
-
Checks whether the controller has already been closed.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scroll ↔ ScrollController
-
latefinal
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
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
-
onDelete(
) → void -
Called when the controller is removed from memory.
inherited
-
onEndScroll(
) → Future< void> - Called when the scroll reaches the bottom.
-
onInit(
) → void -
Called immediately after the widget is allocated in memory.
You might use this to initialize something for the controller.
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
-
onStart(
) → void -
Called at the exact moment the widget is allocated in memory.
It uses an internal "callable" type, to avoid any @overrides in subclasses.
This method should be internal and is required to define the
lifetime cycle of the subclass.
inherited
-
onTopScroll(
) → Future< void> - Called when the scroll reaches the top.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited