mx.events

# ResizeEvent - AS3 Flex

Package | mx.events
Class | public class ResizeEvent
Inheritance | ResizeEvent Event Object

Language Version: | ActionScript 3.0

Product Version: | Flex 3

Runtime Versions: | Flash Player 9, AIR 1.1

Represents event objects that are dispatched when the size of a Flex component changes.

More examples

Manually dispatching events

Learn more

About Flex events

Related API Elements

mx.core.UIComponent

Public Properties
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| Property | Defined By
--- | --- | ---
|  | bubbles : Boolean [read-only] Indicates whether an event is a bubbling event. | Event
|  | cancelable : Boolean [read-only] Indicates whether the behavior associated with the event can be prevented. | Event
|  | constructor : Object A reference to the class object or constructor function for a given object instance. | Object
|  | currentTarget : Object [read-only] The object that is actively processing the Event object with an event listener. | Event
|  | eventPhase : uint [read-only] The current phase in the event flow. | Event
|  | oldHeight : Number The previous height of the object, in pixels. | ResizeEvent
|  | oldWidth : Number The previous width of the object, in pixels. | ResizeEvent
|  | target : Object [read-only] The event target. | Event
|  | type : String [read-only] The type of event. | Event

Public Methods
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| Method | Defined By
--- | --- | ---
|  | ResizeEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, oldWidth:Number = NaN, oldHeight:Number = NaN) Constructor. | ResizeEvent
|  | clone():Event Duplicates an instance of an Event subclass. | Event
|  | formatToString(className:String, ... arguments):String A utility function for implementing the toString() method in custom ActionScript 3.0 Event classes. | Event
|  | hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined. | Object
|  | isDefaultPrevented():Boolean Checks whether the preventDefault() method has been called on the event. | Event
|  | 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
|  | preventDefault():void Cancels an event's default behavior if that behavior can be canceled. | Event
|  | propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable. | Object
|  | setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations. | Object
|  | stopImmediatePropagation():void Prevents processing of any event listeners in the current node and any subsequent nodes in the event flow. | Event
|  | stopPropagation():void Prevents processing of any event listeners in nodes subsequent to the current node in the event flow. | Event
|  | toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions. | Object
|  | toString():String Returns a string containing all the properties of the Event object. | Event
|  | valueOf():Object Returns the primitive value of the specified object. | Object

Public Constants
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| Constant | Defined By
--- | --- | ---
|  | RESIZE : String = "resize" [static] The ResizeEvent.RESIZE constant defines the value of the type property of the event object for a resize event. | ResizeEvent

Property Detail

### oldHeight

property

`public var oldHeight:Number`

Language Version: | ActionScript 3.0

Product Version: | Flex 3

Runtime Versions: | Flash Player 9, AIR 1.1

The previous `height` of the object, in pixels.

### oldWidth

property

`public var oldWidth:Number`

Language Version: | ActionScript 3.0

Product Version: | Flex 3

Runtime Versions: | Flash Player 9, AIR 1.1

The previous `width` of the object, in pixels.

Constructor Detail

### ResizeEvent

()
Constructor

`public function ResizeEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, oldWidth:Number = NaN, oldHeight:Number = NaN)`

Language Version: | ActionScript 3.0

Product Version: | Flex 3

Runtime Versions: | Flash Player 9, AIR 1.1

Constructor.

Parameters

| `type:String` — The event type; indicates the action that caused the event.
| `bubbles:Boolean` (default = `false`)`` — Specifies whether the event can bubble up the display list hierarchy.
| `cancelable:Boolean` (default = `false`)`` — Specifies whether the behavior associated with the event can be prevented.
| `oldWidth:Number` (default = `NaN`)`` — The previous width of the object, in pixels.
| `oldHeight:Number` (default = `NaN`)`` — The previous height of the object, in pixels.

Constant Detail

### RESIZE

Constant

`public static const RESIZE:String = "resize"`

Language Version: | ActionScript 3.0

Product Version: | Flex 3

Runtime Versions: | Flash Player 9, AIR 1.1

The `ResizeEvent.RESIZE` constant defines the value of the `type` property of the event object for a `resize` event.

The properties of the event object have the following values:

Property | Value
--- | ---
`bubbles` | false
`cancelable` | false
`currentTarget` | The Object that defines the event listener that handles the event. For example, if you use `myButton.addEventListener()` to register an event listener, myButton is the value of the `currentTarget`.
`oldHeight` | The previous height of the object, in pixels.
`oldWidth` | The previous width of the object, in pixels.
`target` | The Object that dispatched the event; it is not always the Object listening for the event. Use the `currentTarget` property to always access the Object listening for the event.

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Mon Apr 10 2017, 12:28 PM -07:00