ViewModelSubscriber<V extends ReduxViewModel> class

Transforms a stream of state objects found via StoreProvider into a stream of view models, and builds a Widget each time a distinctly new view model is emitted by that stream.

This class is designed to minimize the number of times its subtree is built. When a new state is emitted by Store.states, it's converted into a view model using the provided converter. If (And only if) that new instance is unequal to the previous one, the widget subtree is rebuilt using builder. Any state changes emitted by the Store that don't impact the view model used by a particular ViewModelSubscriber are ignored by it.

Inheritance

Constructors

ViewModelSubscriber({@required ViewModelConverter<V> converter, @required ViewModelWidgetBuilder<V> builder, Key key})

Properties

builder ViewModelWidgetBuilder<V>
final
converter ViewModelConverter<V>
final
hashCode int
The hash code for this object. [...]
@nonVirtual, 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

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. [...]
@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.info}) String
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

Operators

operator ==(Object other) bool
The equality operator. [...]
@nonVirtual, inherited