ElementState<T> class

The base component state class used in controlling state in a component or object.

This class contains much more concrete ways of controlling, handling and watching state in a component through the use of streams. These streams watch for state changes and then are updated whenever a state change is received.

This object also encapsulates the state of the component via the State object.

This object makes use of the ComponentStateControl mixin as well as the StateControl mixin to create implementations of functions required for state changes.

Inheritance

• Object
• State<T>
• ElementState

Mixed-in types

• StateControl
• ComponentStateControl

Implementers

• TemplateState

Constructors

ElementState({required T component, State<T>? state})

Properties

component ↔ T

The component

getter/setter pair

componentState ↔ State<T>

The current state of the component as a State object.

getter/setter pair

currentValue → T

The current value of the variable

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

initValue → T

The initial value of the variable.

final, inherited

previousValue → T

The previous value of the variable

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

stateStream → Stream<StateChange<T>>

A Stream of state changes used and updated for watching over changes in state of the element or component.

no setter

Methods

applyState() → void

Function used in making a copy of the current state of an object to be implemented elsewhere in code.

override

change(T newValue, {StateChange<T>? stateChange}) → void

Function used to change state.

override

dispose() → void

Function used in disposing current component state, and disposing of any broadcast streams used in the process.

override

freeze() → void

Function used to freeze state.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

reload() → void

Function used to refresh or reload state.

override

toString() → String

A string representation of this object.

inherited

unfreeze() → void

Function used to unfreeze state.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited