套件 | mx.effects |
類別 | public class DefaultListEffect |
繼承 | DefaultListEffect Parallel CompositeEffect Effect EventDispatcher Object |
語言版本: | ActionScript 3.0 |
產品版本: | Flex 3 |
執行階段版本: | 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.
The <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" />
預設 MXML 屬性children
相關 API 元素
屬性 | 定義自 | ||
---|---|---|---|
className : String [唯讀]
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 [覆寫] [唯讀]
Returns the duration of this effect as defined by the duration of
all child effects. | Parallel | ||
constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | 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 [唯讀]
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 |
方法 | 定義自 | ||
---|---|---|---|
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
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 | ||
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 | ||
會將事件傳送到事件流程。 | 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 | ||
會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。 | EventDispatcher | ||
指出物件是否有已定義的指定屬性。 | Object | ||
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 | ||
Pauses the effect until you call the resume() method. | Effect | ||
Begins playing the effect. | Effect | ||
指出指定的屬性是否存在,以及是否可列舉。 | Object | ||
會從 EventDispatcher 物件移除偵聽程式。 | 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 | ||
為迴圈作業設定動態屬性的可用性。 | Object | ||
Stops the effect, leaving the effect targets in their current state. | Effect | ||
傳回代表此物件的字串,根據地區特定慣例進行格式化。 | Object | ||
會傳回指定之物件的字串形式。 | Object | ||
會傳回指定之物件的基本值。 | Object | ||
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 |
color | 屬性 |
fadeInDuration | 屬性 |
fadeOutDuration | 屬性 |
growDuration | 屬性 |
removedElementOffset | 屬性 |
removedElementOffset:Number
語言版本: | ActionScript 3.0 |
產品版本: | Flex 3 |
執行階段版本: | 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.
預設值為 100。
實作
public function get removedElementOffset():Number
public function set removedElementOffset(value:Number):void
shrinkDuration | 屬性 |
DefaultListEffect | () | 建構函式 |
public function DefaultListEffect()
Constructor.
<?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, 03:47 PM Z