public function ease(fraction:Number):Number| Language Version : | ActionScript 3.0 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Takes the fraction representing the elapsed duration of an animation
(a value between 0.0 to 1.0) and returns a new elapsed value.
This value is used to calculate animated property values.
By changing the value of the elapsed fraction, you effectively change
the animation of the property.
Parameters
| fraction:Number — The elapsed fraction of an animation, from 0.0 to 1.0.
|
Returns | Number — The eased value for the elapsed time. Typically, this value
should be constrained to lie between 0.0 and 1.0, although it is possible
to return values outside of this range. Note that the results of
returning such values are undefined, and depend on what kind of
effects are using this eased value. For example, an object moving
in a linear fashion can have positions calculated outside of its start
and end point without a problem, but other value types (such as color)
may not result in desired effects if they use time values that cause
them to surpass their endpoint values.
|
<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Simple example to demonstrate the s:Bounce and s:Elastic 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>
<s:Bounce id="bounceEasing"/>
<s:Elastic id="elasticEasing"/>
<s:Move id="moveRight"
target="{myImage}"
xBy="500"
duration="2000"
easer="{elasticEasing}"/>
<s:Move id="moveLeft"
target="{myImage}"
xBy="-500"
duration="2000"
easer="{bounceEasing}"/>
</fx:Declarations>
<s:Panel id="examplePanel"
title="Bounce and Elastic Effect Example"
width="75%" height="75%">
<!-- Directions -->
<s:VGroup id="detailsBox" width="50%" top="5" left="5">
<s:Label width="99%" color="blue"
text="Click the buttons to watch the effect."/>
</s:VGroup>
<mx:Image id="myImage" top="20"
source="@Embed(source='assets/logo.jpg')"/>
<s:Button label="Move Right"
bottom="10" left="5"
click="moveRight.end();moveRight.play();"/>
<s:Button label="Move Left"
bottom="10" left="100"
click="moveLeft.end();moveLeft.play();"/>
</s:Panel>
</s:Application>
Object