Adobe® Flex® 4 Language Reference
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mx.effects 
Parallel 
Packagemx.effects
Classpublic class Parallel
InheritanceParallel Inheritance CompositeEffect Inheritance Effect Inheritance EventDispatcher Inheritance Object
Subclasses DefaultListEffect, DefaultTileListEffect

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

The Parallel effect plays multiple child effects at the same time.

You can create a Paralell effect in MXML, as the following example shows:

  <mx:Parallel id="WipeRightUp">
    <mx:children>
      <mx:WipeRight duration="1000"/>
      <mx:WipeUp duration="1000"/>
    </mx:children>
  </mx:Parallel>
  
  <mx:VBox id="myBox" hideEffect="{WipeRightUp}" >
    <mx:TextArea id="aTextArea" text="hello"/>
  </mx:VBox>

Notice that the <mx:children> tag is optional.

Starting a Parallel effect in ActionScript is usually a five-step process:

  1. Create instances of the effect objects to be composited together; for example: 
    myFadeEffect = new mx.effects.Fade(target);
  2. Set properties, such as duration, on the individual effect objects.
  3. Create an instance of the Parallel effect object; for example: 
    myParallelEffect = new mx.effects.Parallel();
  4. Call the addChild() method for each of the effect objects; for example: 
    myParallelEffect.addChild(myFadeEffect);
  5. Invoke the Parallel effect's play() method; for example: 
    myParallelEffect.play();

MXML SyntaxexpandedHide MXML Syntax

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

  <mx:Parallel id="identifier">
    <mx:children>
      <!-- Specify child effect tags --> 
    </mx:children>
  </mx:Parallel>

Default MXML Propertychildren

View the examples

See also

mx.effects.effectClasses.ParallelInstance
Creating composite effects

Public Properties
 PropertyDefined By
 Inheritedchildren : Array
CompositeEffect
 InheritedclassName : String
[read-only] The name of the effect class, such as "Fade".
Effect
  compositeDuration : Number
[override] [read-only] Returns the duration of this effect as defined by the duration of all child effects.
Parallel
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 InheritedcustomFilter : 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
 Inheritedduration : Number
Duration of the effect in milliseconds.
Effect
 InheritedeffectTargetHost : mx.effects:IEffectTargetHost
A property that lets you access the target list-based control of a data effect.
Effect
 Inheritedfilter : String
Specifies an algorithm for filtering targets for an effect.
Effect
 InheritedhideFocusRing : Boolean
Determines whether the effect should hide the focus ring when starting the effect.
Effect
 InheritedinstanceClass : Class
An object of type Class that specifies the effect instance class class for this effect class.
Effect
 InheritedisPlaying : 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
 InheritedperElementOffset : Number
Additional delay, in milliseconds, for effect targets after the first target of the effect.
Effect
 InheritedplayheadTime : Number
Current time position of the effect.
Effect
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
 InheritedrelevantProperties : Array
An Array of property names to use when performing filtering.
Effect
 InheritedrelevantStyles : Array
An Array of style names to use when performing filtering.
Effect
 InheritedrepeatCount : int = 1
Number of times to repeat the effect.
Effect
 InheritedrepeatDelay : int = 0
Amount of time, in milliseconds, to wait before repeating the effect.
Effect
 InheritedstartDelay : int = 0
Amount of time, in milliseconds, to wait before starting the effect.
Effect
 InheritedsuspendBackgroundProcessing : Boolean = false
If true, blocks all background processing while the effect is playing.
Effect
 Inheritedtarget : Object
The object to which this effect is applied.
Effect
 Inheritedtargets : Array
An Array of objects that are targets for the effect.
Effect
 InheritedtriggerEvent : 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
 PropertyDefined By
 InheritedapplyTransitionEndProperties : 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
 InheritedendValuesCaptured : 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
Public Methods
 MethodDefined By
  
Parallel(target:Object = null)
Constructor.
Parallel
 Inherited
addChild(childEffect:IEffect):void
Adds a new child effect to this composite effect.
CompositeEffect
 Inherited
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
 Inherited
captureEndValues():void
Captures the current values of the relevant properties on the effect's targets and saves them as end values.
Effect
 Inherited
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
 Inherited
captureStartValues():void
Captures the current values of the relevant properties on the effect's targets.
Effect
 Inherited
createInstance(target:Object = null):IEffectInstance
Creates a single effect instance and initializes it.
Effect
 Inherited
createInstances(targets:Array = null):Array
Takes an Array of target objects and invokes the createInstance() method on each target.
Effect
 Inherited
deleteInstance(instance:IEffectInstance):void
Removes event listeners from an instance and removes it from the list of instances.
Effect
 Inherited
dispatchEvent(event:Event):Boolean
Dispatches an event into the event flow.
EventDispatcher
 Inherited
end(effectInstance:IEffectInstance = null):void
Interrupts an effect that is currently playing, and jumps immediately to the end of the effect.
Effect
 Inherited
getAffectedProperties():Array
Returns an Array of Strings, where each String is the name of a property changed by this effect.
Effect
 Inherited
hasEventListener(type:String):Boolean
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
hasOwnProperty(name:String):Boolean
Indicates whether an object has a specified property defined.
Object
 Inherited
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
 Inherited
pause():void
Pauses the effect until you call the resume() method.
Effect
 Inherited
play(targets:Array = null, playReversedFromEnd:Boolean = false):Array
Begins playing the effect.
Effect
 Inherited
propertyIsEnumerable(name:String):Boolean
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
 Inherited
resume():void
Resumes the effect after it has been paused by a call to the pause() method.
Effect
 Inherited
reverse():void
Plays the effect in reverse, if the effect is currently playing, starting from the current position of the effect.
Effect
 Inherited
setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
stop():void
Stops the effect, leaving the effect targets in their current state.
Effect
 Inherited
toLocaleString():String
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
toString():String
Returns the string representation of the specified object.
Object
 Inherited
valueOf():Object
Returns the primitive value of the specified object.
Object
 Inherited
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
Protected Methods
 MethodDefined By
 Inherited
applyValueToTarget(target:Object, property:String, value:*, props:Object):void
Used internally by the Effect infrastructure.
Effect
 Inherited
effectEndHandler(event:EffectEvent):void
Called when an effect instance has finished playing.
Effect
 Inherited
effectStartHandler(event:EffectEvent):void
This method is called when the effect instance starts playing.
Effect
 Inherited
effectStopHandler(event:EffectEvent):void
Called when an effect instance has stopped by a call to the stop() method.
Effect
 Inherited
filterInstance(propChanges:Array, target:Object):Boolean
Determines the logic for filtering out an effect instance.
Effect
 Inherited
getValueFromTarget(target:Object, property:String):*
Called by the captureStartValues() method to get the value of a property from the target.
Effect
 Inherited
initInstance(instance:IEffectInstance):void
Copies properties of the effect to the effect instance.
Effect
Events
Click for more information on events
 Event Summary Defined By
 Inherited
activate
[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.EventDispatcher
 Inherited
deactivate
[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.EventDispatcher
 Inherited
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
 Inherited
effectStart
Dispatched when the effect starts playing.Effect
 Inherited
effectStop
Dispatched when the effect has been stopped, which only occurs when the effect is interrupted by a call to the stop() method.Effect
Property Detail

compositeDuration

property
compositeDuration:Number  [read-only] [override]

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Returns the duration of this effect as defined by the duration of all child effects. This takes into account the startDelay and repetition info for all child effects, along with their durations, and returns the appropriate result.



Implementation
    override public function get compositeDuration():Number
Constructor Detail

Parallel

()Constructor
public function Parallel(target:Object = null)

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Constructor.

Parameters
target:Object (default = null) — This argument is ignored for Parallel effects. It is included only for consistency with other types of effects.
Examples How to use this example
ParallelEffectExample.mxml
<?xml version="1.0"?>
<!-- Simple example to demonstrate the Halo Parallel 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">

    <fx:Declarations>
       <mx:Parallel id="expand" target="{img}">
            <mx:Move xTo="{canvas.width/2 - 50}" yTo="{canvas.height/2 - 100}"/>
            <mx:Resize widthTo="100" heightTo="200"/>
        </mx:Parallel>

        <mx:Parallel id="contract" target="{img}">
            <mx:Move xTo="20" yTo="20"/>
            <mx:Resize widthTo="30" heightTo="60"/>
        </mx:Parallel>
    </fx:Declarations>

    <s:Panel title="Halo Parallel Effect Example" width="100%" height="100%">
        <s:VGroup bottom="10" right="10" top="10" left="10">
            <s:Label width="100%" color="blue"
                text="Use the Button controls to move and resize the phone image in parallel."/>

            <mx:Canvas id="canvas" width="100%" height="100%">
                <mx:Image id="img" x="20" y="20" width="30" height="60"
                    source="@Embed(source='assets/Nokia_6630.png')"/>
            </mx:Canvas>


            <s:Button label="Expand" click="expand.end(); expand.play();" />
            <s:Button label="Contract" click="contract.end(); contract.play();" />
        </s:VGroup>

    </s:Panel>
</s:Application>



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Thu May 20 2010, 02:19 AM -07:00