| Package | spark.effects |
| Class | public class Fade |
| Inheritance | Fade  Animate Effect EventDispatcher Object |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
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 Syntax
Show MXML Syntax
Hide MXML SyntaxThe <s:Fade> tag
inherits the tag attributes of its superclass,
and adds the following tag attributes:
<s:Fade
id="ID"
alphaFrom="val"
alphaTo="val"
/>
Default MXML PropertymotionPaths
Learn more
About effects
About Spark effects
Spark property effects
The Fade, Resize, and AnimateColor effects
Handling Spark effect events
About transitions
About Spark effects
Spark property effects
The Fade, Resize, and AnimateColor effects
Handling Spark effect events
About transitions
Related API Elements
Public Properties
| Property | Defined By | ||
|---|---|---|---|
| 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 [read-only]
The name of the effect class, such as "Fade". | Effect | |
| constructor : Object
A reference to the class object or constructor function for a given object instance. | 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 [read-only]
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 | |
Protected Properties
Public Methods
| Method | Defined By | ||
|---|---|---|---|
Constructor. | Fade | ||
| 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 | |
|
Captures the current values of the relevant properties
on the effect's targets and saves them as end values. | Effect | |
|
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 | |
|
Captures the current values of the relevant properties
on the effect's targets. | Effect | |
|
Creates a single effect instance and initializes it. | Effect | |
|
Takes an Array of target objects and invokes the
createInstance() method on each target. | Effect | |
|
Removes event listeners from an instance
and removes it from the list of instances. | Effect | |
|
Dispatches an event into the event flow. | EventDispatcher | |
|
Interrupts an effect that is currently playing,
and jumps immediately to the end of the effect. | Effect | |
|
Returns an Array of Strings, where each String is the name
of a property changed by this effect. | Effect | |
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
|
Indicates whether an object has a specified property defined. | Object | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
Pauses the effect until you call the resume() method. | Effect | |
|
Begins playing the effect. | Effect | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Resumes the effect after it has been paused
by a call to the pause() method. | Effect | |
|
Plays the effect in reverse, if the effect is currently playing,
starting from the current position of the effect. | Effect | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Stops the effect, leaving the effect targets in their current state. | Effect | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
|
Returns the string representation of the specified object. | Object | |
|
Returns the primitive value of the specified object. | Object | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
Protected Methods
Property Detail
alphaFrom | property |
public var alphaFrom:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | 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 | property |
public var alphaTo:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | 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.
Constructor Detail
Fade | () | Constructor |
Examples How to use this example
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>
Mon Apr 10 2017, 12:28 PM -07:00