Base class for widgets that efficiently propagate information down the tree.
To obtain the nearest instance of a particular type of inherited widget from a build context, use BuildContext.inheritFromWidgetOfExactType.
Inherited widgets, when referenced in this way, will cause the consumer to rebuild when the inherited widget itself changes state.
- Inheritance
- Object
- Widget
- ProxyWidget
- InheritedWidget
Constructors
- InheritedWidget({Key key, Widget child })
-
Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.
const
Properties
- child → Widget
-
The widget below this widget in the tree.
read-only, inherited - hashCode → int
-
Get a hash code for this object.
read-only, inherited - key → Key
-
Controls how one widget replaces another widget in the tree.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
createElement(
) → InheritedElement -
Inflates this configuration to a concrete instance.
-
updateShouldNotify(
InheritedWidget oldWidget) → bool -
Whether the framework should notify widgets that inherit from this widget.
-
debugFillDescription(
List<String> description) → void -
Add additional information to the given description for use by toString.
inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited -
toStringShort(
) → String -
A short, textual description of this widget.
inherited