State

(Preview)

Package	mx.states
Class	public class State
Inheritance	State EventDispatcher Object

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The State class defines a view state, a particular view of a component. For example, a product thumbnail could have two view states; a base view state with minimal information, and a rich view state with additional information. The overrides property specifies a set of child classes to add or remove from the base view state, and properties, styles, and event handlers to set when the view state is in effect.

You use the State class in the states property of Flex components. You can only specify a states property at the root of an application or a custom control, not on child controls.

You enable a view state by setting a component's currentState property.

MXML Syntax expanded

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The <mx:State> tag has the following attributes:

  <mx:State
  Properties
  basedOn="null"
  name="null"
  overrides="null"
  />

Default MXML Propertyoverrides

Related API Elements

mx.states.AddChild
mx.states.RemoveChild
mx.states.SetEventHandler
mx.states.SetProperty
mx.states.SetStyle
mx.states.Transition

Public Properties

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	Property		Defined By
		basedOn : String The name of the view state upon which this view state is based, or null if this view state is not based on a named view state.	State
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		name : String The name of the view state.	State
		overrides : Array The overrides for this view state, as an Array of objects that implement the IOverride interface.	State
		stateGroups : Array The state groups that this view state belongs to as an array of String.	State

Public Methods

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	Method		Defined By
		State(properties:Object = null) Constructor.	State
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.	EventDispatcher
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

Events

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	Summary	Defined By
activate	[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.	EventDispatcher
deactivate	[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.	EventDispatcher
enterState	Dispatched after a view state has been entered.	State
exitState	Dispatched just before a view state is exited.	State

Property Detail

Constructor Detail

Event Detail

Property	Value
`bubbles`	false
`cancelable`	false
`currentTarget`	The Object that defines the event listener that handles the event. For example, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

Property	Value
`bubbles`	false
`cancelable`	false
`currentTarget`	The Object that defines the event listener that handles the event. For example, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`target`	The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

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State - AS3 Flex

Packagesx

Language Elements

Appendixes

Package mx.states

basedOn

name

overrides

stateGroups

enterState

exitState