Selector0<T> class

A base class for custom Selector.

It works with any InheritedWidget. Variants like Selector and Selector6 are just syntax sugar to use Selector0 with Provider.of.

But it will not work with values coming from anything but InheritedWidget.

As such, the following:

T value;

return Selector0(
  selector: (_) => value,
  builder: ...,
)

will still call builder again, even if value didn't change.

Inheritance

Implementers

Constructors

Selector0({Key key, @required ValueWidgetBuilder<T> builder, @required T selector(BuildContext), ShouldRebuild<T> shouldRebuild, Widget child}): Both builder and selector must not be null.

builder → ValueWidgetBuilder<T>: A function that builds a widget tree from child and the last result of selector. [...]
final
selector → T Function(BuildContext): A function that obtains some InheritedWidget and map their content into a new object with only a limited number of properties. [...]
final
hashCode → int: The hash code for this object.
read-only, inherited
key → Key: Controls how one widget replaces another widget in the tree.
final, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited

createState() → _Selector0State<T>: Creates the mutable state for this widget at a given location in the tree. [...]
override
createElement() → SingleChildStatefulElement: Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
debugDescribeChildren() → List<DiagnosticsNode>: Returns a list of DiagnosticsNode objects describing this node's children.
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent 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.debug}) → String: Returns a string representation of this object.
inherited
toStringDeep({String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug}) → 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