ScopedModel<T extends Model> class
Provides a Model to all descendants of this Widget.
Descendant Widgets can access the model by using the ScopedModelDescendant Widget, which rebuilds each time the model changes, or directly via the ScopedModel.of static method.
To provide a Model to all screens, place the ScopedModel Widget above the WidgetsApp or MaterialApp in the Widget tree.
Example
ScopedModel<CounterModel>(
model: CounterModel(),
child: ScopedModelDescendant<CounterModel>(
builder: (context, child, model) => Text(model.counter.toString()),
),
);
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- ScopedModel
Constructors
- ScopedModel.new({required T model, required Widget child})
Properties
- child → Widget
-
The Widget the model will be available to.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- model → T
-
The Model to provide to child and its descendants.
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
Static Methods
-
of<
T extends Model> (BuildContext context, {bool rebuildOnChange = false}) → T - Finds a Model provided by a ScopedModel Widget.