Fade

Pacote	mx.effects
Classe	public class Fade
Herança	Fade TweenEffect Effect EventDispatcher Object

Versão da linguagem:

ActionScript 3.0

Versão de produto:

Flex 3

Versões de runtime:

Flash Player 9, AIR 1.1

Ao iniciar com Flex 4.0, a Adobe recomenda que você use a classe de spark.effects.Fade como uma alternativa a esta classe.

The Fade effect animates the alpha property of a component, either from transparent to opaque, or from opaque to transparent.

If you specify the Fade effect for the showEffect or hideEffect trigger, and if you omit values for the alphaFrom and alphaTo properties, the effect automatically transitions alpha from 0 to the target's current alpha value on a showEffect trigger, and from the target's current alpha value to 0 on a hideEffect trigger.

Note: To use the Fade effect with text, you must use an embedded font, not a device font.

Sintaxe MXML expanded

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The <mx:Fade> tag inherits the tag attributes of its superclass, and adds the following tag attributes:

  <mx:Fade 
    id="ID"
    alphaFrom="val"
    alphaTo="val"
  />

Veja os exemplos

Elementos da API relacionados

mx.effects.effectClasses.FadeInstance

Propriedades públicas

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	Propriedade		Definido por
		alphaFrom : Number Initial transparency level between 0.0 and 1.0, where 0.0 means transparent and 1.0 means fully opaque.	Fade
		alphaTo : Number Final transparency level, where 0.0 means transparent and 1.0 means fully opaque.	Fade
		className : String [somente leitura] The name of the effect class, such as "Fade".	Effect
		constructor : Object Uma referência ao objeto de classe ou à função de construtor de uma determinada ocorrência de objeto.	Object
		customFilter : mx.effects:EffectTargetFilter Specifies a custom filter object, of type EffectTargetFilter, used by the effect to determine the targets on which to play the effect.	Effect
		duration : Number Duration of the effect in milliseconds.	Effect
		easingFunction : Function = null The easing function for the animation.	TweenEffect
		effectTargetHost : mx.effects:IEffectTargetHost A property that lets you access the target list-based control of a data effect.	Effect
		filter : String Specifies an algorithm for filtering targets for an effect.	Effect
		hideFocusRing : Boolean Determines whether the effect should hide the focus ring when starting the effect.	Effect
		instanceClass : Class An object of type Class that specifies the effect instance class class for this effect class.	Effect
		isPlaying : Boolean [somente leitura] A read-only flag which is true if any instances of the effect are currently playing, and false if none are.	Effect
		perElementOffset : Number Additional delay, in milliseconds, for effect targets after the first target of the effect.	Effect
		playheadTime : Number Current time position of the effect.	Effect
		relevantProperties : Array An Array of property names to use when performing filtering.	Effect
		relevantStyles : Array An Array of style names to use when performing filtering.	Effect
		repeatCount : int = 1 Number of times to repeat the effect.	Effect
		repeatDelay : int = 0 Amount of time, in milliseconds, to wait before repeating the effect.	Effect
		startDelay : int = 0 Amount of time, in milliseconds, to wait before starting the effect.	Effect
		suspendBackgroundProcessing : Boolean = false If true, blocks all background processing while the effect is playing.	Effect
		target : Object The object to which this effect is applied.	Effect
		targets : Array An Array of objects that are targets for the effect.	Effect
		triggerEvent : Event The Event object passed to this Effect by the EffectManager when an effect is triggered, or null if the effect is not being played by the EffectManager.	Effect

Propriedades protegidas

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	Propriedade		Definido por
		applyTransitionEndProperties : Boolean This flag controls whether the effect, when run in a transition, automatically applies the property values according to the end state, as opposed to leaving values as set by the effect itself.	Effect
		endValuesCaptured : Boolean = false A flag containing true if the end values of an effect have already been determined, or false if they should be acquired from the current properties of the effect targets when the effect runs.	Effect

Métodos públicos

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	Método		Definido por
		Fade(target:Object = null) Constructor.	Fade
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registra um objeto de ouvinte de evento em um objeto EventDispatcher, de forma que o ouvinte receba a notificação de um evento.	EventDispatcher
		captureEndValues():void Captures the current values of the relevant properties on the effect's targets and saves them as end values.	Effect
		captureMoreStartValues(targets:Array):void Captures the current values of the relevant properties of an additional set of targets Flex uses this function when a data change effect is run.	Effect
		captureStartValues():void Captures the current values of the relevant properties on the effect's targets.	Effect
		createInstance(target:Object = null):IEffectInstance Creates a single effect instance and initializes it.	Effect
		createInstances(targets:Array = null):Array Takes an Array of target objects and invokes the createInstance() method on each target.	Effect
		deleteInstance(instance:IEffectInstance):void Removes event listeners from an instance and removes it from the list of instances.	Effect
		dispatchEvent(event:Event):Boolean Envia um evento para o fluxo de eventos.	EventDispatcher
		end(effectInstance:IEffectInstance = null):void Interrupts an effect that is currently playing, and jumps immediately to the end of the effect.	Effect
		getAffectedProperties():Array Returns an Array of Strings, where each String is the name of a property changed by this effect.	Effect
		hasEventListener(type:String):Boolean Verifica se o objeto EventDispatcher tem ouvintes registrados para um tipo específico de evento.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indica se um objeto tem uma propriedade especificada definida.	Object
		isPrototypeOf(theClass:Object):Boolean Indica se uma ocorrência da classe Object está na cadeia de protótipos do objeto especificado como o parâmetro.	Object
		pause():void Pauses the effect until you call the resume() method.	Effect
		play(targets:Array = null, playReversedFromEnd:Boolean = false):Array Begins playing the effect.	Effect
		propertyIsEnumerable(name:String):Boolean Indica se a propriedade especificada existe e é enumerável.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Remove um ouvinte do objeto EventDispatcher.	EventDispatcher
		resume():void Resumes the effect after it has been paused by a call to the pause() method.	Effect
		reverse():void Plays the effect in reverse, if the effect is currently playing, starting from the current position of the effect.	Effect
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Define a disponibilidade de uma propriedade dinâmica para operações de repetição.	Object
		stop():void Stops the effect, leaving the effect targets in their current state.	Effect
		toLocaleString():String Retorna a representação da string deste objeto, formatado segundo as convenções específicas para a localidade.	Object
		toString():String Retorna a representação de string do objeto especificado.	Object
		valueOf():Object Retorna o valor primitivo do objeto especificado.	Object
		willTrigger(type:String):Boolean Verifica se um ouvinte de evento está registrado nesse objeto EventDispatcher ou em qualquer um de seus ancestrais para o tipo de evento especificado.	EventDispatcher

Métodos protegidos

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	Método		Definido por
		applyValueToTarget(target:Object, property:String, value:*, props:Object):void Used internally by the Effect infrastructure.	Effect
		effectEndHandler(event:EffectEvent):void Called when an effect instance has finished playing.	Effect
		effectStartHandler(event:EffectEvent):void This method is called when the effect instance starts playing.	Effect
		effectStopHandler(event:EffectEvent):void Called when an effect instance has stopped by a call to the stop() method.	Effect
		filterInstance(propChanges:Array, target:Object):Boolean Determines the logic for filtering out an effect instance.	Effect
		getValueFromTarget(target:Object, property:String):* Called by the captureStartValues() method to get the value of a property from the target.	Effect
		initInstance(instance:IEffectInstance):void Copies properties of the effect to the effect instance.	Effect
		tweenEventHandler(event:mx.events:TweenEvent):void Called when the TweenEffect dispatches a TweenEvent.	TweenEffect

Eventos

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	Resumo	Definido por
activate	[transmissão de evento] Despachado quando o Flash Player ou o aplicativo do AIR ganha o foco do sistema operacional e está se tornando inativo.	EventDispatcher
deactivate	[transmissão de evento] Despachado quando o Flash Player ou o aplicativo do AIR perde o foco do sistema operacional e está se tornando inativo.	EventDispatcher
effectEnd	Dispatched when one of the effect's instances finishes playing, either when the instance finishes playing or when the effect is interrupted by a call to the end() method.	Effect
effectStart	Dispatched when the effect starts playing.	Effect
effectStop	Dispatched when the effect has been stopped, which only occurs when the effect is interrupted by a call to the stop() method.	Effect
tweenEnd	Dispatched when the tween effect ends.	TweenEffect
tweenStart	Dispatched when the tween effect starts, which corresponds to the first call to the onTweenUpdate() method.	TweenEffect
tweenUpdate	Dispatched every time the tween effect updates the target.	TweenEffect

Detalhes da propriedade

alphaFrom

propriedade

public var alphaFrom:Number

Versão da linguagem:

ActionScript 3.0

Versão de produto:

Flex 3

Versões de runtime:

Flash Player 9, AIR 1.1

Initial transparency level between 0.0 and 1.0, where 0.0 means transparent and 1.0 means fully opaque.

If the effect causes the target component to disappear, the default value is the current value of the target's alpha property. If the effect causes the target component to appear, the default value is 0.0.

alphaTo

propriedade

public var alphaTo:Number

Versão da linguagem:

ActionScript 3.0

Versão de produto:

Flex 3

Versões de runtime:

Flash Player 9, AIR 1.1

Final transparency level, where 0.0 means transparent and 1.0 means fully opaque.

If the effect causes the target component to disappear, the default value is 0.0. If the effect causes the target component to appear, the default value is the current value of the target's alpha property.

Detalhes do construtor

()

Construtor

public function Fade(target:Object = null)

Versão da linguagem:

ActionScript 3.0

Versão de produto:

Flex 3

Versões de runtime:

Flash Player 9, AIR 1.1

Constructor.

Parâmetros

target:Object (default = null) — The Object to animate with this effect.

Exemplos Como usar este exemplo

FadeEffectExample.mxml

<?xml version="1.0"?>
<!-- Simple example to demonstrate the Halo Fade effect. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx"
        initialize="Font.registerFont(myriad_font);">

    <fx:Script>
        <![CDATA[

            import flash.text.Font;

            [Embed("assets/MyriadWebPro.ttf", fontName="MyMyriad")]
            public var myriad_font:Class;
        ]]>
    </fx:Script>

    <fx:Declarations>
        <mx:Fade id="fadeOut" duration="1000" alphaFrom="1.0" alphaTo="0.0"/>
        <mx:Fade id="fadeIn" duration="1000" alphaFrom="0.0" alphaTo="1.0"/>
    </fx:Declarations>

    <s:Panel title="Halo Fade Effect Example" width="95%" height="95%">
        <s:VGroup left="20" right="20" top="20" bottom="20">
            <s:Label width="100%" color="blue"
                text="Use the Fade effect to show or hide the text and image. Use an embedded font when applying the Fade effect to text."/>

            <mx:Text text="Nokia 9930"
                fontFamily="MyMyriad" fontSize="14"
                visible="{cb1.selected}"
                hideEffect="{fadeOut}" showEffect="{fadeIn}"/>

            <mx:Image source="@Embed(source='assets/Nokia_6630.png')"
                visible="{cb1.selected}"
                hideEffect="{fadeOut}" showEffect="{fadeIn}"/>

            <s:CheckBox id="cb1" label="visible" selected="true"/>
        </s:VGroup>
    </s:Panel>
</s:Application>

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Fade - AS3 Flex

Classes x

alphaFrom

alphaTo

Fade