Pacote | spark.effects.animation |
Classe | public class Keyframe |
Herança | Keyframe Object |
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 4 |
Versões de runtime: | Flash Player 10, AIR 1.5 |
The collection of keyframes for an effect is called the effect's motion path. A motion path can define any number of keyframes. The effect then calculates the value of the property by interpolating between the values specified by two key frames.
Use the MotionPath class to hold the collection of Keyframe objects that represent the motion path of the effect. The MotionPath class specifies the name of the property on the target, and the collection of Keyframes objects specify the values of the property at different times during the effect.
Sintaxe MXMLOcultar sintaxe MXMLThe <s:Keyframe>
tag
inherits the tag attributes of its superclass,
and adds the following tag attributes:
<s:Keyframe id="ID" easier="Linear" time="val" value="val" valueBy="val" />
Mais exemplos
Elementos da API relacionados
Propriedade | Definido por | ||
---|---|---|---|
constructor : Object
Uma referência ao objeto de classe ou à função de construtor de uma determinada ocorrência de objeto. | Object | ||
easer : IEaser
The easing behavior applied to the motion between the previous
Keyframe object in motion path and this Keyframe object. | Keyframe | ||
time : Number
The time, in milliseconds, at which the effect target
for this keyframe should have the value
specified by the value property. | Keyframe | ||
value : Object
The value that the property of the effect target should have
at the time specified by the time property. | Keyframe | ||
valueBy : Object
Optional parameter which, if specified, is used to
calculate value in this keyframe or
the previous one. | Keyframe |
Método | Definido por | ||
---|---|---|---|
Constructor. | Keyframe | ||
Returns a copy of this Keyframe object. | Keyframe | ||
Indica se um objeto tem uma propriedade especificada definida. | Object | ||
Indica se uma ocorrência da classe Object está na cadeia de protótipos do objeto especificado como o parâmetro. | Object | ||
Indica se a propriedade especificada existe e é enumerável. | Object | ||
Define a disponibilidade de uma propriedade dinâmica para operações de repetição. | Object | ||
Retorna a representação da string deste objeto, formatado segundo as convenções específicas para a localidade. | Object | ||
Retorna a representação de string do objeto especificado. | Object | ||
Retorna o valor primitivo do objeto especificado. | Object |
easer | propriedade |
public var easer:IEaser
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 4 |
Versões de runtime: | Flash Player 10, AIR 1.5 |
The easing behavior applied to the motion between the previous Keyframe object in motion path and this Keyframe object. By default, the easing is linear, or no easing at all.
Note that the parent effect
might have easing applied already over the entire
animation. Therefore, if easing per keyframe interval is desired
instead, it is necessary to set the overall effect
easer to linear easing (spark.effects.easing.Linear) and then
set the easer
on each Keyframe as appropriate.
Because this property acts on the interval between the previous
Keyframe object in a sequence and this Keyframe object, the easer
property is ignored on the first Keyframe object in a sequence.
O valor padrão é Linear.
time | propriedade |
public var time:Number
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 4 |
Versões de runtime: | Flash Player 10, AIR 1.5 |
The time, in milliseconds, at which the effect target
for this keyframe should have the value
specified by the value
property. This time
is relative to the starting time of the effect defined
with this keyframe.
value | propriedade |
public var value:Object
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 4 |
Versões de runtime: | Flash Player 10, AIR 1.5 |
The value that the property of the effect target should have
at the time specified by the time
property.
valueBy | propriedade |
public var valueBy:Object
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 4 |
Versões de runtime: | Flash Player 10, AIR 1.5 |
Optional parameter which, if specified, is used to
calculate value
in this keyframe or
the previous one. If value
is not set in
the previous keyframe, but this keyframe defines both
value
and valueBy
, then value
in the previous keyframe is calculated as value
in this keyframe minus valueBy
in this keyframe.
Similarly, if value
in this keyframe is not
defined, but valueBy
in this keyframe and
value
in the previous keyframe are both set,
then value
in this keyframe is calculated as
value
in the previous keyframe plus
valueBy
in this keyframe.
valueBy
is ignored for the first
keyframe in a sequence, since it applies only to the interval
preceding a keyframe, and there is no preceding interval for the
first keyframe.
Keyframe | () | Construtor |
public function Keyframe(time:Number = NaN, value:Object = null, valueBy:Object = null)
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 4 |
Versões de runtime: | Flash Player 10, AIR 1.5 |
Constructor.
Parâmetrostime:Number (default = NaN ) — The time, in milliseconds, at which the effect target
of this keyframe should have the value
specified by the value parameter.
| |
value:Object (default = null ) — The value that the effect target should have
at the given time .
| |
valueBy:Object (default = null ) — Optional parameter which, if provided,
causes value to be calculated dynamically by
adding valueBy to the value of
the previous keyframe in the set of keyframes in a MotionPath
object. This value is ignored if this is the first
Keyframe in a sequence.
|
clone | () | método |
<?xml version="1.0"?> <!-- Simple example to demonstrate the s:Keyframe and s:MotionPath classes. --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"> <fx:Declarations> <fx:Vector id="kf" type="spark.effects.animation.MotionPath"> <s:MotionPath property="scaleX"> <s:Keyframe time="250" value="0.5"/> <s:Keyframe time="500" value="1.0"/> <s:Keyframe time="750" value="0.5"/> <s:Keyframe time="1000" value="1.0"/> <s:Keyframe time="1250" value="0.5"/> <s:Keyframe time="1500" value="1.0"/> </s:MotionPath> <s:MotionPath property="scaleY"> <s:Keyframe time="250" value="0.5"/> <s:Keyframe time="500" value="1.0"/> <s:Keyframe time="750" value="0.5"/> <s:Keyframe time="1000" value="1.0"/> <s:Keyframe time="1250" value="0.5"/> <s:Keyframe time="1500" value="1.0"/> </s:MotionPath> </fx:Vector> <s:Animate id="shrinkEffect" motionPaths="{kf}" target="{myImage}"/> </fx:Declarations> <s:Panel id="examplePanel" title="Keyframe and MotionPath Effect Example" width="75%" height="75%"> <s:layout> <s:VerticalLayout paddingTop="10" paddingLeft="10"/> </s:layout> <!-- Directions --> <s:VGroup id="detailsBox" width="50%" left="0"> <s:Label width="99%" color="blue" text="Click the Adobe logo to watch the effect."/> </s:VGroup> <mx:Image id="myImage" source="@Embed(source='assets/logo.jpg')" click="shrinkEffect.end();shrinkEffect.play();"/> </s:Panel> </s:Application>
Wed Jun 13 2018, 11:10 AM Z