| Package | mx.effects |
| Class | public class Dissolve |
| Inheritance | Dissolve  TweenEffect Effect EventDispatcher Object |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
- When the effect begins, it creates an opaque rectangle.
The rectangle floats above the target component,
its color matches the
Dissolve.colorproperty, and itsalphaproperty is initially set to (1.0 -Dissolve.alphaFrom). - As the effect plays, the
alphaproperty of the rectangle animates from (1.0 -alphaFrom) to (1.0 -alphaTo). As the rectangle becomes more and more opaque, the content underneath it gradually disappears. - When the effect finishes, the rectangle is destroyed.
When the target object is a Container, the Dissolve effect applies to the content area inside the container. The content area is the region where the container's background color is visible.
Note: To use the Dissolve effect with the
creationCompleteEffect trigger of a DataGrid control,
you must define the data provider of the control inline
using a child tag of the DataGrid control, or using data binding.
This issue is a result of the data provider not being set until the
creationComplete event is dispatched.
Therefore, when the effect starts playing, Flex has not completed
the sizing of the DataGrid control.
Show MXML Syntax
Hide MXML SyntaxThe <mx:Dissolve> tag
inherits the tag attributes of its superclass,
and adds the following tag attributes:
<mx:Dissolve
id="ID"
alphaFrom="val"
alphaTo="val"
color="val"
/>
Related API Elements
| Property | Defined By | ||
|---|---|---|---|
| alphaFrom : Number
Initial transparency level between 0.0 and 1.0,
where 0.0 means transparent and 1.0 means fully opaque. | Dissolve | ||
| alphaTo : Number
Final transparency level between 0.0 and 1.0,
where 0.0 means transparent and 1.0 means fully opaque. | Dissolve | ||
 | className : String [read-only]
The name of the effect class, such as "Fade". | Effect | |
| color : uint = 0xFFFFFFFF
Hex value that represents the color of the floating rectangle
that the effect displays over the target object. | Dissolve | ||
| 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 | |
| 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 [read-only]
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 | |
| targetArea : RoundedRectangle
The area of the target to play the effect upon. | Dissolve | ||
| 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 | |
| Method | Defined By | ||
|---|---|---|---|
Constructor. | Dissolve | ||
| 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 | |
alphaFrom | property |
public var alphaFrom:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | 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 | property |
public var alphaTo:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Final 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 0.0.
If the effect causes the target component to appear, the default
value is the current value of the target's alpha property.
color | property |
public var color:uint = 0xFFFFFFFF| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Hex value that represents the color of the floating rectangle
that the effect displays over the target object.
The default value is the color specified by the target component's
backgroundColor style property, or 0xFFFFFF, if
backgroundColor is not set.
targetArea | property |
public var targetArea:RoundedRectangle| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The area of the target to play the effect upon. The dissolve overlay is drawn using this property's dimensions. UIComponents create an overlay over the entire component. Containers create an overlay over their content area, but not their chrome.
The default value is null.
Dissolve | () | Constructor |
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the Halo Dissolve 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:Dissolve id="dissolveOut" duration="1000" alphaFrom="1.0" alphaTo="0.0"/>
<mx:Dissolve id="dissolveIn" duration="1000" alphaFrom="0.0" alphaTo="1.0"/>
</fx:Declarations>
<s:Panel title="Halo Dissolve Effect Example"
width="95%" height="95%" >
<s:HGroup left="20" right="20" top="20" bottom="20">
<s:VGroup>
<mx:Text text="Nokia 9930"
fontSize="14"
visible="{cb1.selected}"
hideEffect="{dissolveOut}" showEffect="{dissolveIn}"/>
<mx:Image source="@Embed(source='assets/Nokia_6630.png')"
visible="{cb1.selected}"
hideEffect="{dissolveOut}" showEffect="{dissolveIn}"/>
</s:VGroup>
<s:VGroup height="100%" width="100%">
<mx:Text width="100%" color="blue"
text="Use the Dissolve effect to show or hide the text, image, and button."/>
<mx:Spacer height="100%"/>
<mx:Button label="Purchase"
visible="{cb1.selected}"
hideEffect="{dissolveOut}" showEffect="{dissolveIn}"/>
</s:VGroup>
</s:HGroup>
<s:CheckBox id="cb1" label="visible" selected="true" bottom="10" left="10"/>
</s:Panel>
</s:Application>
Wed Nov 21 2018, 06:34 AM -08:00