Fade

套件	spark.effects
類別	public class Fade
繼承	Fade Animate Effect EventDispatcher Object

語言版本:

ActionScript 3.0

產品版本:

Flex 4

執行階段版本:

Flash Player 10, AIR 1.5

The Fade effect animates the alpha property of a component. If played manually (outside of a transition) on an object whose visible property is set to false, and told to animate alpha from zero to a nonzero value, it will set visible to true as a side-effect of fading it in. When run as part of a transition, it will respect state-specified values, but may use the visible property as well as whether the object is parented in the before/after states to determine the values to animate alpha from and to if alphaFrom and alphaTo are not specified for the effect.

MXML 語法

隱藏 MXML 語法

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

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

預設 MXML 屬性motionPaths

檢視範例

公用屬性

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	屬性		定義自
		alphaFrom : Number Initial value of the alpha property, between 0.0 and 1.0, where 0.0 means transparent and 1.0 means fully opaque.	Fade
		alphaTo : Number Final value of the alpha property, between 0.0 and 1.0, where 0.0 means transparent and 1.0 means fully opaque.	Fade
		className : String [唯讀] The name of the effect class, such as "Fade".	Effect
		constructor : Object 類別物件的參照或是特定物件實體的建構函數。	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
		disableLayout : Boolean If true, the effect disables layout on its targets' parent containers, setting the containers autoLayout property to false, and also disables any layout constraints on the target objects.	Animate
		duration : Number Duration of the effect in milliseconds.	Effect
		easer : IEaser The easing behavior for this effect.	Animate
		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
		interpolator : IInterpolator The interpolator used by this effect to calculate values between the start and end values of a property.	Animate
		isPlaying : Boolean [唯讀] A read-only flag which is true if any instances of the effect are currently playing, and false if none are.	Effect
		motionPaths : Vector.<MotionPath> A Vector of MotionPath objects, each of which holds the name of a property being animated and the values that the property takes during the animation.	Animate
		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
		repeatBehavior : String The behavior of a repeating effect, which means an effect with repeatCount equal to either 0 or > 1.	Animate
		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
		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

保護屬性

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	屬性		定義自
		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

公用方法

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	方法		定義自
		Fade(target:Object = null) Constructor.	Fade
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void 會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。	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 會將事件傳送到事件流程。	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 會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。	EventDispatcher
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	Object
		isPrototypeOf(theClass:Object):Boolean 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	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 指出指定的屬性是否存在，以及是否可列舉。	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void 會從 EventDispatcher 物件移除偵聽程式。	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 為迴圈作業設定動態屬性的可用性。	Object
		stop():void Stops the effect, leaving the effect targets in their current state.	Effect
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 會傳回指定之物件的字串形式。	Object
		valueOf():Object 會傳回指定之物件的基本值。	Object
		willTrigger(type:String):Boolean 檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。	EventDispatcher

保護方法

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	方法		定義自
		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

事件

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	摘要	定義自
activate	[廣播事件] 當 Flash Player 或 AIR 應用程式取得作業系統焦點並成為作用中時傳送。	EventDispatcher
deactivate	[廣播事件] 當 Flash Player 或 AIR 應用程式失去作業系統焦點並成為非作用中時傳送。	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
effectRepeat	Dispatched when the effect begins a new repetition, for any effect that is repeated more than once.	Animate
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
effectUpdate	Dispatched every time the effect updates the target.	Animate

屬性詳細資訊

alphaFrom

屬性

public var alphaFrom:Number

語言版本:

ActionScript 3.0

產品版本:

Flex 4

執行階段版本:

Flash Player 10, AIR 1.5

Initial value of the alpha property, 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

屬性

public var alphaTo:Number

語言版本:

ActionScript 3.0

產品版本:

Flex 4

執行階段版本:

Flash Player 10, AIR 1.5

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

建構函式詳細資料

()

建構函式

public function Fade(target:Object = null)

語言版本:

ActionScript 3.0

產品版本:

Flex 4

執行階段版本:

Flash Player 10, AIR 1.5

Constructor.

參數

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

範例如何使用本範例

FadeEffectExample.mxml

<?xml version="1.0"?>
<!-- Simple example to demonstrate the s:Fade class. -->
<s:Application
    xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark">

    <fx:Declarations>
        <s:Fade id="fadeEffect" target="{targetBox}" alphaFrom="1" alphaTo="0"
            repeatCount="2" repeatBehavior="reverse" effectStart="playButton.enabled=false"
            effectEnd="playButton.enabled=true;"/>
    </fx:Declarations>

    <s:Panel title="Fade Effect Example"
        width="75%" height="75%">

        <mx:HBox width="100%" height="100%" paddingLeft="5" paddingTop="5">
            <!-- Our target to affect-->
            <mx:VBox id="targetBox" width="50%"  horizontalAlign="center">
                <mx:Label text="Nokia 9930"/>
                <mx:Image id="targetImg" source="@Embed(source='assets/Nokia_6630.png')"/>
            </mx:VBox>
            <mx:VBox id="detailsBox" width="50%" left="0">
                <mx:Text width="99%" color="blue"
                    text="The Fade effect changes the alpha of a target using the following parameters: alphaFrom, alphaTo. Click 'Fade' to watch the effect."/>
            </mx:VBox>
        </mx:HBox>

        <s:Rect left="0" right="0" bottom="0" height="30">
            <s:fill>
                <s:LinearGradient rotation="90">
                    <s:GradientEntry color="0xE2E2E2" />
                    <s:GradientEntry color="0xD9D9D9" />
                </s:LinearGradient>
            </s:fill>
        </s:Rect>
        <s:Button id="playButton"
            left="5" bottom="5"
            label="Fade" click="fadeEffect.play();"/>
    </s:Panel>
</s:Application>

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Fade - AS3 Flex

類別 x

alphaFrom

alphaTo

Fade