ListenableProxyProvider3<T, T2, T3, R extends Listenable> class

A variation of ListenableProvider that builds its value from values obtained from other providers.

See the discussion on ChangeNotifierProxyProvider for a complete explanation on how to use it.

ChangeNotifierProxyProvider extends ListenableProxyProvider to make it work with ChangeNotifier, but the behavior stays the same. Most of the time you'll want to use ChangeNotifierProxyProvider instead. But ListenableProxyProvider is exposed in case one wants to use a Listenable implementation other than ChangeNotifier, such as Animation.



ListenableProxyProvider3({Key key, @required ValueBuilder<R> create, @required ProxyProviderBuilder3<T, T2, T3, R> update, @Deprecated('will be removed in 4.0.0, use create instead') ValueBuilder<R> initialBuilder, @Deprecated('will be removed in 4.0.0, use update instead') ProxyProviderBuilder3<T, T2, T3, R> builder, Disposer<R> dispose, Widget child })
Initializes key for subclasses.


builder ProxyProviderBuilder3<T, T2, T3, R>
Builds the value passed to InheritedProvider by combining InheritedWidget. [...]
child Widget
The widget that is below the current Provider widget in the tree.
final, inherited
dispose Disposer<R>
Optionally allows to clean-up resources when the widget is removed from the tree.
final, inherited
hashCode → int
The hash code for this object.
read-only, inherited
initialBuilder ValueBuilder<R>
Builds the initial value passed as previous to didChangeDependencies.
final, 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


build(BuildContext context, R value) Widget
An equivalent of
cloneWithChild(Widget child) → _NumericProxyProvider<T, T2, T3, Void, Void, Void, R>
Clones the current provider with a new child.
createElement() ProxyProviderElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
createState() → _ProxyProviderState<R>
Creates the mutable state for this widget at a given location in the tree.
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. [...]
didChangeDependencies(BuildContext context, R previous) → R
Builds the value passed to build by combining InheritedWidget.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep. [...]
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns a string representation of this object.
toStringDeep({String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns a string representation of this node and its descendants. [...]
toStringShallow({String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns a one-line detailed description of the object. [...]
toStringShort() → String
A short, textual description of this widget.


operator ==(dynamic other) → bool
The equality operator.