所以我在这个mx中加载一个非常大的图片:图像manteinAspectRatio启用了高度约束,并且像往常一样它不起作用(Flex绝对不适合我):
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<s:Rect top="0" right="0" bottom="0" left="0">
<s:fill>
<mx:SolidColor color="#000000"/>
</s:fill>
</s:Rect>
<s:VGroup id="a" top="0" right="0" bottom="0" left="0" horizontalAlign="center" verticalAlign="middle">
<s:Group id="b">
<s:Rect id="c" top="0" right="0" bottom="0" left="0" radiusX="10" radiusY="10">
<s:fill>
<mx:SolidColor color="#cccccc"/>
</s:fill>
</s:Rect>
<s:VGroup id="d" paddingTop="10" paddingRight="10" paddingBottom="10" paddingLeft="10">
<mx:Image id="e" source="big.jpg" maxHeight="300" maintainAspectRatio="true" />
</s:VGroup>
</s:Group>
</s:VGroup>
</s:Application>
big.jpg的宽度大于高度,因此当调整大小时,包装容器会获得正确的新高度,但它们的宽度仍然是旧的。
我试图在每个元素上调用validateNow(),invalidate,callLater(),调整大小事件,竞争事件......我是一个厌倦了AS 3.0的菜鸟
更新
阅读J_A_X答案我最终得到了这个:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import flash.events.Event;
import mx.controls.Image;
private function fix(event:Event):void {
var img:Image = event.target as Image;
var h:uint = 300;
img.width *= h / img.height;
img.height = h;
img.removeEventListener("updateComplete", fix);
}
]]>
</fx:Script>
<s:Rect top="0" right="0" bottom="0" left="0">
<s:fill>
<mx:SolidColor color="#000000"/>
</s:fill>
</s:Rect>
<s:VGroup top="0" right="0" bottom="0" left="0" horizontalAlign="center" verticalAlign="middle">
<s:Group>
<s:Rect top="0" right="0" bottom="0" left="0" radiusX="10" radiusY="10">
<s:fill>
<mx:SolidColor color="#cccccc"/>
</s:fill>
</s:Rect>
<s:VGroup paddingTop="10" paddingRight="10" paddingBottom="10" paddingLeft="10">
<mx:Image source="big.jpg" maintainAspectRatio="false" updateComplete="fix(event)" />
</s:VGroup>
</s:Group>
</s:VGroup>
</s:Application>
我希望能帮助另一个人处理Flex。
答案 0 :(得分:0)
在查看Image之后,它似乎需要明确的高度/宽度,否则它将无法正确缩小。不扩展到maxHeight有点愚蠢,但你总是可以使用Flex 4.5 Image类,或者只是创建自己的处理最大高度/宽度。