AutomaticKeepAliveWidgetModelMixin<W extends CuteWidget> mixin
A mixin with convenience methods for clients of AutomaticKeepAlive. Used with WidgetModel subclasses.
Subclasses must implement wantKeepAlive.
Then, whenever wantKeepAlive's value changes (or might change), the subclass should call updateKeepAlive.
The type argument T is the type of the CuteWidget subclass of the
WidgetModel into which this class is being mixed.
See also:
- AutomaticKeepAlive, which listens to messages from this mixin.
- KeepAliveNotification, the notifications sent by this mixin.
- Superclass Constraints
- WidgetModel<
W>
- WidgetModel<
Properties
- context → BuildContext
-
A handle to the location of a widget in the widget tree.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- mounted → bool
-
Whether this WidgetModel object is currently in a tree.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- wantKeepAlive → bool
-
Whether the current instance should be kept alive.
no setter
- widget → W
-
The current configuration.
no setterinherited
Methods
-
activate(
) → void -
Called when this object is reinserted into the tree after having been
removed via deactivate.
inherited
-
deactivate(
) → void -
Called when this object is removed from the tree.
override
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
didChangeDependencies(
) → void -
Called when a dependency of this Widget Model changes.
inherited
-
didUpdateWidget(
W oldWidget) → void -
Called whenever the widget configuration changes.
inherited
-
dispose(
) → void -
Called when this object is removed from the tree permanently.
inherited
-
init(
) → void -
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reassemble(
) → void -
Called whenever the application is reassembled during debugging,
for example during hot reload.
inherited
-
setState(
[VoidCallback? fn]) → void -
Notify the widget that the internal state of widget model has changed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
-
updateKeepAlive(
) → void - Ensures that any AutomaticKeepAlive ancestors are in a good state, by firing a KeepAliveNotification or triggering the KeepAliveHandle as appropriate.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited