TweenEffectInstance

Pacchetto	mx.effects.effectClasses
Classe	public class TweenEffectInstance
Ereditarietà	TweenEffectInstance EffectInstance EventDispatcher Object
Sottoclassi	AnimatePropertyInstance, BlurInstance, DissolveInstance, FadeInstance, GlowInstance, MoveInstance, PauseInstance, ResizeInstance, RotateInstance, SeriesEffectInstance, ZoomInstance

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

The TweenEffectInstance class implements the instance class for the TweenEffect. Flex creates an instance of this class when it plays a TweenEffect; you do not create one yourself.

Altri esempi

About creating a custom effect
Example: Creating a tween effect

Elementi API correlati

mx.effects.Tween
mx.effects.TweenEffect

Proprietà pubbliche

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	Proprietà		Definito da
		className : String [sola lettura] The name of the effect class, such as "FadeInstance".	EffectInstance
		constructor : Object Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto.	Object
		duration : Number The duration of the effect, in milliseconds.	EffectInstance
		easingFunction : Function The easing function for the animation.	TweenEffectInstance
		effect : IEffect The IEffect object that created this IEffectInstance object.	EffectInstance
		effectTargetHost : mx.effects:IEffectTargetHost A property that lets you access the target list-based control of a data effect.	EffectInstance
		hideFocusRing : Boolean Determines whether the effect should hide the focus ring when starting the effect.	EffectInstance
		playheadTime : Number [override] Current time position of the effect.	TweenEffectInstance
		propertyChanges : PropertyChanges Specifies the PropertyChanges object containing the start and end values for the set of properties relevant to the effect's targets.	EffectInstance
		repeatCount : int Number of times to repeat the effect.	EffectInstance
		repeatDelay : int Amount of time, in milliseconds, to wait before repeating the effect.	EffectInstance
		startDelay : int Amount of time, in milliseconds, to wait before starting the effect.	EffectInstance
		suspendBackgroundProcessing : Boolean If true, blocks all background processing while the effect is playing.	EffectInstance
		target : Object The UIComponent object to which this effect is applied.	EffectInstance
		triggerEvent : Event The event, if any, which triggered the playing of the effect.	EffectInstance
		tween : mx.effects:Tween The Tween object, which determines the animation.	TweenEffectInstance

Proprietà protette

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	Proprietà		Definito da
		playCount : int = 0 Number of times that the instance has been played.	EffectInstance

Metodi pubblici

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	Metodo		Definito da
		TweenEffectInstance(target:Object) Constructor.	TweenEffectInstance
		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
		dispatchEvent(event:Event):Boolean Invia un evento nel flusso di eventi.	EventDispatcher
		end():void [override] Interrupts an effect that is currently playing, and immediately jumps to the end of the effect.	TweenEffectInstance
		finishEffect():void Called by the end() method when the effect finishes playing.	EffectInstance
		finishRepeat():void Called after each iteration of a repeated effect finishes playing.	EffectInstance
		hasEventListener(type:String):Boolean Verifica se per l'oggetto EventDispatcher sono presenti listener registrati per un tipo specifico di evento.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indica se per un oggetto è definita una proprietà specifica.	Object
		initEffect(event:Event):void This method is called if the effect was triggered by the EffectManager.	EffectInstance
		isPrototypeOf(theClass:Object):Boolean Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro.	Object
		onTweenEnd(value:Object):void Callback method that is called when the target should be updated by the effect for the last time.	TweenEffectInstance
		onTweenUpdate(value:Object):void Callback method that is called when the target should be updated by the effect.	TweenEffectInstance
		pause():void Pauses the effect until you call the resume() method.	EffectInstance
		play():void Plays the effect instance on the target.	EffectInstance
		propertyIsEnumerable(name:String):Boolean Indica se la proprietà specificata esiste ed è enumerabile.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Rimuove un listener dall'oggetto EventDispatcher.	EventDispatcher
		resume():void Resumes the effect after it has been paused by a call to the pause() method.	EffectInstance
		reverse():void Plays the effect in reverse, starting from the current position of the effect.	EffectInstance
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche.	Object
		startEffect():void Plays the effect instance on the target after the startDelay period has elapsed.	EffectInstance
		stop():void Stops the effect, leaving the target in its current state.	EffectInstance
		toLocaleString():String Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate.	Object
		toString():String Restituisce la rappresentazione in formato stringa dell'oggetto specificato.	Object
		valueOf():Object Restituisce il valore di base dell'oggetto specificato.	Object
		willTrigger(type:String):Boolean 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

	Metodo		Definito da
		createTween(listener:Object, startValue:Object, endValue:Object, duration:Number = -1, minFps:Number = -1):mx.effects:Tween Creates a Tween instance, assigns it the start, end, and duration values.	TweenEffectInstance

Eventi

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	Evento		Riepilogo	Definito da
		activate	[evento di trasmissione] Inviato quando Flash Player o l'applicazione AIR ottiene lo stato di attivazione del sistema operativo ed entra nello stato attivo.	EventDispatcher
		deactivate	[evento di trasmissione] Inviato quando Flash Player o l'applicazione AIR perde l'attivazione del sistema operativo e sta entrando nello stato inattivo.	EventDispatcher

Descrizione delle proprietà

easingFunction

proprietà

public var easingFunction:Function

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

The easing function for the animation. By default, effects use the same easing function as the TweenEffect class.

Elementi API correlati

mx.effects.TweenEffect.easingFunction

playheadTime

proprietà

playheadTime:Number[override]

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Current time position of the effect. This property has a value between 0 and the total duration, which includes the Effect's startDelay, repeatCount, and repeatDelay.

Implementazione
override public function get playheadTime():Number
override public function set playheadTime(value:Number):void

tween

proprietà

public var tween:mx.effects:Tween

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

The Tween object, which determines the animation. To create an effect, you must create a Tween instance in the override of the EffectInstance.play() method and assign it to the tween property. Use the createTween() method to create your Tween object.

Descrizione della funzione di costruzione

()

Funzione di costruzione

public function TweenEffectInstance(target:Object)

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Constructor.

Parametri

target:Object — The Object to animate with this effect.

Descrizione dei metodi

createTween

()

metodo

 protected function createTween(listener:Object, startValue:Object, endValue:Object, duration:Number = -1, minFps:Number = -1):mx.effects:Tween

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Creates a Tween instance, assigns it the start, end, and duration values. If an easing function has been specified, then it is assigned to the Tween instance. The Tween instance is assigned event listeners for the TweenEvents: tweenStart, tweenUpdate, and tweenEnd. Typically, you call this method from your override of the EffectInstance.play() method which effectively starts the animation timer.

Parametri

	`listener:Object` — Object that is notified at each interval of the animation. You typically pass the `this` keyword as the value. The `listener` must define the `onTweenUpdate()` method and optionally the `onTweenEnd()` method. The `onTweenUpdate()` method is invoked for each interval of the animation, and the `onTweenEnd()` method is invoked just after the animation finishes.

	`startValue:Object` — Initial value(s) of the animation. Either a number or an Array of numbers. If a number is passed, the Tween interpolates between this number and the number passed in the `endValue` parameter. If an Array of numbers is passed, each number in the Array is interpolated.

	`endValue:Object` — Final value(s) of the animation. The type of this argument must match the `startValue` parameter.

	`duration:Number` (default = `-1`) — Duration of the animation, in milliseconds.

	`minFps:Number` (default = `-1`) — Minimum number of times that the `onTweenUpdate()` method should be called every second. The tween code tries to call the `onTweenUpdate()` method as frequently as possible (up to 100 times per second). However, if the frequency falls below `minFps`, the duration of the animation automatically increases. As a result, an animation that temporarily freezes (because it is not getting any CPU cycles) begins again where it left off, instead of suddenly jumping ahead.

Restituisce

mx.effects:Tween — The newly created Tween instance.

end

()

metodo

override public function end():void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Interrupts an effect that is currently playing, and immediately jumps to the end of the effect. Calls the Tween.endTween() method on the tween property. This method implements the method of the superclass.

If you create a subclass of TweenEffectInstance, you can optionally override this method.

The effect dispatches the effectEnd event.

Elementi API correlati

mx.effects.EffectInstance.end()

onTweenEnd

()

metodo

public function onTweenEnd(value:Object):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Callback method that is called when the target should be updated by the effect for the last time. The Tween class passes Tween.endValue as the value of the value argument. The value argument can be either a Number or an Array of Numbers.

Overriding this function is optional. You must also call the super version of this method from the end of your override, super.onTweenEnd(val), after your logic.

Parametri

value:Object — The value of the value argument is an interpolated value determined by the Tween.startValue property, Tween.endValue property, and interpolation function specified by the implementation of the effect in its play() method. The play() method uses these values to create a Tween object that plays the effect over a time period. The value argument can be either a Number or an Array of Numbers.

onTweenUpdate

()

metodo

public function onTweenUpdate(value:Object):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Callback method that is called when the target should be updated by the effect. The Tween class uses the easing function and the Tween.startValue, Tween.endValue and Tween.duration properties to calculate the value of the value argument. The value argument can be either a Number or an Array of Numbers.

All subclasses must override this method. It is not necessary to call the super version of this function when overriding this method.

Parametri

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TweenEffectInstance - AS3 Flex

Classi x

easingFunction

playheadTime

tween