| 套件 | mx.effects |
| 類別 | public class Zoom |
| 繼承 | Zoom  TweenEffect 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 |
 | 使用 Flex 4.0 開始，Adobe 建議您使用 spark.effects.Scale 類別當作是此類別的替代類別。 |
The Zoom effect zooms the object in or out on a center point.
When you apply a Zoom effect to text rendered using a system font, Flex scales the text between whole point sizes. While you do not have to use embedded fonts when you apply a Zoom effect to text, the Zoom will appear smoother when you apply it to embedded fonts.
Note: The Zoom effect does not work when the
Container.autoLayout property is false.
顯示 MXML 語法
隱藏 MXML 語法The <mx:Zoom> tag
inherits all of the tag attributes of its superclass,
and adds the following tag attributes:
<mx:Zoom
id="ID"
captureRollEvents="false|true"
originX="Calculated"
originY="Calculated"
zoomWidthFrom="0.01"
zoomWidthTo="1.0"
zoomHeightFrom="0.01"
zoomHeightTo="1.0"
/>
相關 API 元素
| 屬性 | 定義自 | ||
|---|---|---|---|
| captureRollEvents : Boolean
If true, prevents Flex from dispatching the rollOut
and rollOver events if the mouse has not moved. | Zoom | ||
 | className : String [唯讀]
The name of the effect class, such as "Fade". | Effect | |
| constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | 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 [唯讀]
A read-only flag which is true if any instances of the effect
are currently playing, and false if none are. | Effect | |
| originX : Number
Number that represents the x-position of the zoom origin
when the effect target is in a container that supports absolute positioning,
such as the Canvas container. | Zoom | ||
| originY : Number
Number that represents the y-position of the zoom origin
when the effect target is in a container that supports absolute positioning,
such as the Canvas container. | Zoom | ||
| 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 | |
| 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 | |
| zoomHeightFrom : Number
Number that represents the scale at which to start the height zoom,
as a percent between 0.01 and 1.0. | Zoom | ||
| zoomHeightTo : Number
Number that represents the scale at which to complete the height zoom,
as a percent between 0.01 and 1.0. | Zoom | ||
| zoomWidthFrom : Number
Number that represents the scale at which to start the width zoom,
as a percent between 0.01 and 1.0. | Zoom | ||
| zoomWidthTo : Number
Number that represents the scale at which to complete the width zoom,
as a percent between 0.01 and 1.0. | Zoom | ||
| 方法 | 定義自 | ||
|---|---|---|---|
Constructor. | Zoom | ||
| 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 | |
captureRollEvents | 屬性 |
public var captureRollEvents:Boolean| 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 |
If true, prevents Flex from dispatching the rollOut
and rollOver events if the mouse has not moved.
Set this property to true when you use the Zoom effect to
toggle the effect target between a big and small size.
For example, you use the rollOverEffect to trigger
the Zoom effect to reduce the size of the target.
As the target shrinks, the mouse pointer is no longer over the target,
triggering a rollOut event, and
the corresponding rollOutEffect. By setting
the captureRollEvents property to true,
you prevent Flex from dispatching the rollOut event
unless it occurs because you moved the mouse.
預設值為 false。
originX | 屬性 |
public var originX: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 |
Number that represents the x-position of the zoom origin when the effect target is in a container that supports absolute positioning, such as the Canvas container. The zoom origin is the position on the target around which the Zoom effect is centered.
The value must be between 0 and the width of the target component.
The default value istarget.width / 2, which is the center of the target.
originY | 屬性 |
public var originY: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 |
Number that represents the y-position of the zoom origin when the effect target is in a container that supports absolute positioning, such as the Canvas container. The zoom origin is the position on the target around which the Zoom effect is centered.
The value must be between 0 and the height of the target component.
The default value istarget.height / 2, which is the center of the target.
zoomHeightFrom | 屬性 |
public var zoomHeightFrom: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 |
Number that represents the scale at which to start the height zoom, as a percent between 0.01 and 1.0. The default value is 0.01, which is very small.
zoomHeightTo | 屬性 |
public var zoomHeightTo: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 |
Number that represents the scale at which to complete the height zoom, as a percent between 0.01 and 1.0. The default value is 1.0, which is the object's normal size.
zoomWidthFrom | 屬性 |
public var zoomWidthFrom: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 |
Number that represents the scale at which to start the width zoom, as a percent between 0.01 and 1.0. The default value is 0.01, which is very small.
zoomWidthTo | 屬性 |
public var zoomWidthTo: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 |
Number that represents the scale at which to complete the width zoom, as a percent between 0.01 and 1.0. The default value is 1.0, which is the object's normal size.
Zoom | () | 建構函式 |
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the Zoom 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:Script>
<![CDATA[
import flash.events.MouseEvent;
public function doZoom(event:MouseEvent):void {
if (zoomAll.isPlaying) {
zoomAll.reverse();
}
else {
// If this is a ROLL_OUT event, play the effect backwards.
// If this is a ROLL_OVER event, play the effect forwards.
zoomAll.play([event.target], event.type == MouseEvent.ROLL_OUT ? true : false);
}
}
]]>
</fx:Script>
<fx:Declarations>
<mx:Zoom id="zoomAll" zoomWidthTo="1" zoomHeightTo="1" zoomWidthFrom=".5" zoomHeightFrom=".5" />
</fx:Declarations>
<s:Panel title="Zoom Effect Example" width="95%" height="95%" >
<s:VGroup left="20" right="20" top="20" bottom="20">
<s:Label width="100%" color="blue"
text="Move the mouse over the image to enlarge it. Move the mouse off of the image to shrink it."/>
<mx:Image id="img"
source="@Embed(source='assets/Nokia_6630.png')"
scaleX=".5" scaleY=".5"
rollOver="doZoom(event)"
rollOut="doZoom(event)"/>
</s:VGroup>
</s:Panel>
</s:Application>
Tue Jun 12 2018, 03:47 PM Z