Changing the Flex ComboBox control’s opening and closing easing functions and ColorPicker control’s easing duration
Posted on February 22, 2010 | No Comments
Changing the Flex ComboBox control’s opening and closing easing functions and Changing the ColorPicker control’s easing duration and easing functions
This entry looks at customizing the ComboBox control’s openDuration and closeDuration styles which control how long it takes for the dropdown menu to appear or disappear. By default both of these styles are set to 250 milliseconds (1/4 second). We’ll also look at changing the easing method used to animate the dropdown menu. Finally, we look at explicitly setting the dropdown menu’s width so it doesn’t inherit the ComboBox’s width and alternate the row colors for the items in the dropdown.
Full code after the jump.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="top"
backgroundColor="white">
<mx:Script>
<![CDATA[
import mx.effects.easing.*;
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</mx:Script>
<mx:ComboBox id="comboBox"
openDuration="1000"
openEasingFunction="Bounce.easeOut"
closeDuration="1000"
closeEasingFunction="Bounce.easeIn"
prompt="Please select an item..."
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dropdownWidth="150"
alternatingItemColors="[0xDFDFDF, 0xEEEEEE]">
<mx:dataProvider>
<mx:Array>
<a href="http://jtc-enterprises.com/images/">buy viagra online order | buy cialis tadalafil | buy levitra vardenafil</a> <mx:Object label="Item 1" />
<mx:Object label="Item 2" />
<mx:Object label="Item 3" />
<mx:Object label="Item 4" />
<mx:Object label="Item 5" />
<mx:Object label="Item 6" />
<mx:Object label="Item 7" />
<mx:Object label="Item 8" />
</mx:Array>
</mx:dataProvider>
</mx:ComboBox>
</mx:Application>
The following example shows how you can control the easing duration and easing functions that the ColorPicker control uses to display its drop-down swatch palette. Of course, this probably isn’t the best example of “useful animation” and will probably just annoy users (the long 2 second easing animation), but it is nice to know that you can change these if you need to.
Full code after the jump.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="top"
backgroundColor="white">
<mx:Script>
<![CDATA[
import mx.effects.easing.*;
]]>
</mx:Script>
<mx:Number id="easeDurationMS">2000</mx:Number>
<mx:ColorPicker id="colorPicker"
openDuration="{easeDurationMS}"
openEasingFunction="Elastic.easeOut"
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closeEasingFunction="Elastic.easeIn"
width="50"
height="50" />
</mx:Application>
Tags: closeEasingFunction | import mx.effects.easing.* | openDuration | openEasingFunction
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By Sameera Thilakasiri
,is a front-end developer based in Colombo, is a blogger and a lifestyle photographer.
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BIOGRAPHY
Sameera Thilakasiri is a front-end developer and UX Architect based in Colombo, Sri Lanka, specialist in User Interface Design, User Experience, Usability and Accessibility, Information Architecture, Responsive Web Design, Interactive Design, Search Engine Optimization, Trainging and Public Speaking.
In his profession, follow the best practices, W3C web standards and guidelines, responsive, semantic, usable, accessible, SEO friendly to cutting edge cording using XHTML/HTML5, CSS and jQuery for Pixel-perfect cross browser compatibility.
In his leisure blogging for technical articles and lifestyle photographer.