ScopedValueListener class abstract

An object to monitor ScopedValue in the widget.

container to obtain a ScopedValueContainer and pass the change notification sent from the ScopedValue stored in the container to the associated widget.

getScopedValueResult associates ScopedValue and reads the result.

ScopedValueをウィジェット中で監視するためのオブジェクト。

containerでScopedValueContainerを取得しそこに保存されているScopedValueから送られた変更通知を関連付けれられたウィジェットに渡します。

getScopedValueResultでScopedValueの関連付けと結果の読み取りを行ないます。

Implementers

• AppScopedValueListener
• PageScopedValueListener

Available Extensions

• FutureIndicatorExtensions

Properties

container → ScopedValueContainer

ScopedValueContainer that stores ScopedValue.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

dispose() → void

Executed when the widget is destroyed.

getAlreadtExistsScopedValueResult<TResult, TScopedValue extends ScopedValue<TResult>>({bool listen = false, Object? name, bool recursive = true}) → TResult?

Retrieves the ScopedValueState associated with the TScopedValue already stored in the ScopedValueContainer and returns the result.

getScopedValueResult<TResult, TScopedValue extends ScopedValue<TResult>>(TScopedValue provider(), {void onInit(ScopedValueState<TResult, TScopedValue> state)?, void onUpdate(ScopedValueState<TResult, TScopedValue> state)?, bool listen = false, Object? name}) → TResult

TScopedValue by passing provider and returns the result.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited