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创建动画的皮肤我一直负责创建等效的Flex 4实施此页上的按钮的图形样式： http://h.dwighthouse.com/temp/UDOP/2011-3-25_themeDevGlowing/难度Flex 4中
也就是说，在动画上的按钮发光效果。我已经得到了我认为是基于梯度的合适皮肤基础，但我有两个问题。
一，我不能得到任何鼠标事件来响应皮肤。我似乎无法找到有这个问题的其他人。在下面的代码中，当鼠标悬停发生时，startAnimation永远不会被调用，但事件显然正在被注册。要测试此代码，只需将skinClass="ButtonSkin"添加到主应用程序中的按钮声明中，下面的代码就是ButtonSkin.mxml文件。
<?xml version="1.0" encoding="utf-8"?>
<s:Skin xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
initialize="init()"
mouseEnabled="true">
<fx:Metadata>
[HostComponent("spark.components.Button")]
</fx:Metadata>
<fx:Script>
<![CDATA[
import flash.events.Event;
[Bindable]
private var animatedAlpha:Number = 0.8;
private var animationDirection:Number = -1;
private function backAndForth(value:Number, max:Number, min:Number, increment:Number):Number {
value += (animationDirection * increment);
if (value < min || value > max)
{
animationDirection *= -1;
value += (animationDirection * increment * 2);
}
return value;
}
private function startAnimation(e:MouseEvent):void {
animatedAlpha = backAndForth(animatedAlpha, 0.8, 0.3, 0.1); // Or something
systemManager.addEventListener(MouseEvent.MOUSE_OUT, endAnimation);
}
private function endAnimation(e:MouseEvent):void {
animatedAlpha = backAndForth(animatedAlpha, 0.8, 0.3, 0.1); // Or something
systemManager.removeEventListener(MouseEvent.MOUSE_OUT, endAnimation);
}
private function init():void {
parent.mouseChildren = true; // Otherwise mouse events don't fire in the skin
clickableArea.addEventListener(MouseEvent.MOUSE_OVER, startAnimation);
}
]]>
</fx:Script>
<s:states>
<s:State name="up" />
<s:State name="over" />
<s:State name="down" />
<s:State name="disabled" />
</s:states>
<s:Group top="0" bottom="0" left="0" right="0" id="clickableArea">
<s:Rect top="0" bottom="0" left="0" right="0" radiusX="8" radiusY="8">
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color="#000000" color.down="#bb0000" color.disabled="#3b3b3b" ratio="0" />
<s:GradientEntry color="#353535" color.down="#ff0000" color.disabled="#555555" ratio="1" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<s:Rect top="0" bottom="0" left="0" right="0" radiusX="8" radiusY="8">
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color.over="#8f1b1b" alpha="0" ratio="0" />
<s:GradientEntry color.over="#8f1b1b" alpha="0" ratio="0.4" />
<s:GradientEntry color.over="#8f1b1b" alpha="{animatedAlpha}" alpha.down="0" ratio="1" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<s:Rect top="0" bottom="0" left="0" right="0" radiusX="8" radiusY="8">
<s:stroke>
<s:SolidColorStroke color="#000000" color.disabled="#333333" weight="1" />
</s:stroke>
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color="#ffffff" color.disabled="#9e9e9e" alpha="0.6" alpha.down="0.7" ratio="0" />
<s:GradientEntry color="#ffffff" color.disabled="#848484" alpha="0.2" alpha.down="0.4" ratio="0.45" />
<s:GradientEntry color="#ffffff" alpha="0" ratio="0.46" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<s:Label id="labelDisplay" color="#ffffff" color.disabled="#aaaaaa" textAlign="center" baseline="center" paddingTop="7" paddingBottom="5" paddingLeft="10" paddingRight="10">
<s:filters>
<s:DropShadowFilter distance="0" angle="45" blurX="5" blurY="5" />
</s:filters>
</s:Label>
</s:Group>
编辑我找到了原因鼠标事件无法。该按钮显然默认情况下为mouseChildren，它明确地防止事件触发低于其自身。在构造函数中使用parent.mouseChildren = true;可修复此问题。关于问题的下一部分：连续动画。
除此之外，我会感谢一些帮助或指出我在每帧调用函数的正确方向，以及使用鼠标事件开启和关闭所述增量呼叫的能力。 （如果这不是Flex中的动画，请原谅我，我对基于Flash的动画一无所知。）谢谢！已发现