ChangeNotifierProvider<T extends ChangeNotifier> class
A widget that creates a ChangeNotifier and provides it to its descendants.
This widget is used to create a ChangeNotifier object of type T and
provide it to its descendants via a ListenableProvider widget. It takes in
a create function that creates the ChangeNotifier, a builder function
that builds the widget tree that depends on the ChangeNotifier, and an
optional onDispose function that is called when the widget is disposed.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- ChangeNotifierProvider
Constructors
-
ChangeNotifierProvider({Key? key, required T create(BuildContext context), required ProviderBuilder<
T> builder, dynamic onDispose(T controller)?}) -
const
Properties
-
builder
→ ProviderBuilder<
T> -
The builder function that builds the widget tree that depends on the
ChangeNotifier.
final
- create → T Function(BuildContext context)
-
The function that creates the ChangeNotifier.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onDispose → dynamic Function(T controller)?
-
An optional function that is called when the widget is disposed.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
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
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited