ValueState<T> class

A reactive state holder that can be externally updated and refreshed.

Ideal for state that does not need an initial value at creation time. The state is null-safe but must be initialized via refreshWith or refreshUpdate.

Constructors

ValueState.new()

Creates a new ValueState with an auto-generated key.

Properties

data → T

Returns the current value of this state.

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

uniqueKey → UniqueKey

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

on(Widget build(T)) → StateBuilder

Associates this state with a reactive widget built using the given function.

refreshUpdate(T update(T?)) → void

Updates the current state using a functional transformer update, which receives the previous state and returns the new one.

refreshWith(T newState) → void

Replaces the current state with newState and triggers a widget rebuild.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited