| Pacchetto | mx.effects |
| Classe | public class DefaultListEffect |
| Ereditarietà | DefaultListEffect  Parallel CompositeEffect Effect EventDispatcher Object |
| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
You use the itemsChangeEffect style property to apply
this effect to a List control. The default value of
the itemsChangeEffect style property is undefined,
meaning it does not use any effect.
Because the DefaultListEffect effect grows and shrinks item renderers as it plays,
you must set the List.variableRowHeight property to true
to enable the List control to dynalically change its row height.
Mostra sintassi MXML
Nascondi sintassi MXMLThe <mx:DefaultListEffect> tag inherits all the members of its parent and adds the following members:
<DefaultListEffect
Properties
color="0xFFFFFF"
fadeInDuration="300"
fadeOutDuration="300"
growDuration="300"
removedElementOffset="100"
shrinkDuration="300"
/>
Proprietà MXML predefinitachildren
Elementi API correlati
Proprietà pubbliche
| Proprietà | Definito da | ||
|---|---|---|---|
 | className : String [sola lettura]
The name of the effect class, such as "Fade". | Effect | |
| color : Number
Hex value that represents the color used when fading
the added and removed item. | DefaultListEffect | ||
| compositeDuration : Number [override] [sola lettura]
Returns the duration of this effect as defined by the duration of
all child effects. | Parallel | |
| constructor : Object
Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto. | Object | |
| fadeInDuration : Number
The duration, in milliseconds, for fading
in renderers for added and removed items. | DefaultListEffect | ||
| fadeOutDuration : Number
The duration, in milliseconds, used for
fading out renderers for added and removed items. | DefaultListEffect | ||
| growDuration : Number
The duration, in milliseconds,
applied to renderers for added and removed items. | DefaultListEffect | ||
| 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 [sola lettura]
A read-only flag which is true if any instances of the effect
are currently playing, and false if none are. | 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 | |
| removedElementOffset : Number
The offset in milliseconds between the effects applied
to the renderers representing multiple items deleted
at the same time. | DefaultListEffect | ||
| shrinkDuration : Number
The duration, in milliseconds,
applied to renderers for added and removed items. | DefaultListEffect | ||
| 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 | |
| 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 | |
Proprietà protette
Metodi pubblici
| Metodo | Definito da | ||
|---|---|---|---|
Constructor. | DefaultListEffect | ||
|
Adds a new child effect to this composite effect. | CompositeEffect | |
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra un oggetto listener di eventi con un oggetto EventDispatcher, in modo che il listener riceva la notifica di un evento. | 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 | |
|
Invia un evento nel flusso di eventi. | 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 | |
|
Verifica se per l'oggetto EventDispatcher sono presenti listener registrati per un tipo specifico di evento. | EventDispatcher | |
|
Indica se per un oggetto è definita una proprietà specifica. | Object | |
|
Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | |
|
Pauses the effect until you call the resume() method. | Effect | |
|
Begins playing the effect. | Effect | |
|
Indica se la proprietà specificata esiste ed è enumerabile. | Object | |
|
Rimuove un listener dall'oggetto EventDispatcher. | 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 | |
|
Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | |
|
Stops the effect, leaving the effect targets in their current state. | Effect | |
|
Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | |
|
Restituisce la rappresentazione in formato stringa dell'oggetto specificato. | Object | |
|
Restituisce il valore di base dell'oggetto specificato. | Object | |
|
Verifica se un listener di eventi è registrato con questo oggetto EventDispatcher o qualsiasi suo antenato per il tipo di evento specificato. | EventDispatcher | |
Metodi protetti
Eventi
Descrizione delle proprietà
color | proprietà |
color:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Hex value that represents the color used when fading the added and removed item.
Il valore predefinito è 0xFFFFFF.
Implementazione
public function get color():Number public function set color(value:Number):voidfadeInDuration | proprietà |
fadeInDuration:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The duration, in milliseconds, for fading in renderers for added and removed items.
Il valore predefinito è 300.
Implementazione
public function get fadeInDuration():Number public function set fadeInDuration(value:Number):voidfadeOutDuration | proprietà |
fadeOutDuration:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The duration, in milliseconds, used for fading out renderers for added and removed items.
Il valore predefinito è 300.
Implementazione
public function get fadeOutDuration():Number public function set fadeOutDuration(value:Number):voidgrowDuration | proprietà |
growDuration:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The duration, in milliseconds, applied to renderers for added and removed items.
Il valore predefinito è 300.
Implementazione
public function get growDuration():Number public function set growDuration(value:Number):voidremovedElementOffset | proprietà |
removedElementOffset:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The offset in milliseconds between the effects applied to the renderers representing multiple items deleted at the same time. If 0, all renderers will fade and shrink simultaneously.
Il valore predefinito è 100.
Implementazione
public function get removedElementOffset():Number public function set removedElementOffset(value:Number):voidshrinkDuration | proprietà |
shrinkDuration:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The duration, in milliseconds, applied to renderers for added and removed items.
Il valore predefinito è 300.
Implementazione
public function get shrinkDuration():Number public function set shrinkDuration(value:Number):voidDescrizione della funzione di costruzione
DefaultListEffect | () | Funzione di costruzione |
public function DefaultListEffect()Constructor.
DefaultListEffectExample.mxml
<?xml version="1.0"?>
<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:Script>
<![CDATA[
import mx.effects.DefaultListEffect;
import mx.collections.ArrayCollection;
[Bindable]
private var myDP:ArrayCollection = new ArrayCollection(
['A','B','C','D','E','F','G','H']);
private function deleteItem():void {
// As each item is removed, the index of the other items changes.
// So first get the items to delete, then determine their indices
// as you remove them.
var toRemove:Array = [];
for (var i:int = 0; i < list0.selectedItems.length; i++)
toRemove.push(list0.selectedItems[i]);
for (i = 0; i < toRemove.length; i++)
myDP.removeItemAt(myDP.getItemIndex(toRemove[i]));
}
private var zcount:int = 0;
private function addItem():void {
// Always add the new item after the third item,
// or after the last item if the length is less than 3.
myDP.addItemAt("Z"+zcount++,Math.min(3,myDP.length));
}
]]>
</fx:Script>
<!-- Define an instance of the DefaultListEffect effect,
and set its fadeOutDuration and color properties. -->
<fx:Declarations>
<mx:DefaultListEffect id="myDLE"
fadeOutDuration="1000"
color="0x0000ff"/>
</fx:Declarations>
<s:Panel title="Halo DefaultListEffect Example" width="75%" height="75%" >
<s:VGroup left="20" right="20" top="20" bottom="20">
<mx:List id="list0"
width="150"
dataProvider="{myDP}"
variableRowHeight="true"
fontSize="18"
allowMultipleSelection="true"
itemsChangeEffect="{myDLE}"/>
<s:Button
label="Delete item"
click="deleteItem();"/>
<s:Button
label="Add item"
click="addItem();"/>
</s:VGroup>
</s:Panel>
</s:Application>
Tue Jun 12 2018, 02:44 PM Z